====================================== | [ 42.840267][ T11] ================================================================== | [ 42.840713][ T11] BUG: KASAN: slab-use-after-free in kobject_put (lib/kobject.c:729) | [ 42.841123][ T11] Read of size 1 at addr ffff88800861207c by task kworker/u8:0/11 | [ 42.841538][ T11] [ 42.842117][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 42.842790][ T11] Workqueue: netns cleanup_net [ 42.843050][ T11] Call Trace: [ 42.843237][ T11] [ 42.843395][ T11] dump_stack_lvl (lib/dump_stack.c:107) [ 42.843642][ T11] print_address_description.constprop.0 (mm/kasan/report.c:378) [ 42.844018][ T11] ? kobject_put (lib/kobject.c:729) [ 42.844270][ T11] print_report (mm/kasan/report.c:489) [ 42.844510][ T11] ? kasan_addr_to_slab (./arch/x86/include/asm/bitops.h:206 ./arch/x86/include/asm/bitops.h:238 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 ./include/linux/page-flags.h:481 mm/kasan/../slab.h:206 mm/kasan/common.c:38) [ 42.844793][ T11] kasan_report (mm/kasan/report.c:603) [ 42.845026][ T11] ? kobject_put (lib/kobject.c:729) [ 42.845265][ T11] kobject_put (lib/kobject.c:729) [ 42.845496][ T11] br_sysfs_delbr (net/bridge/br_sysfs_br.c:1086) [ 42.845737][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 42.845989][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 42.846274][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 42.846510][ T11] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 42.846836][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 42.847103][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 42.847371][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 42.847650][ T11] process_one_work (kernel/workqueue.c:2638) [ 42.847928][ T11] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 42.848185][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 42.848480][ T11] ? assign_work (kernel/workqueue.c:1101) [ 42.848745][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 42.849001][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 42.849294][ T11] kthread (kernel/kthread.c:388) [ 42.849525][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 42.849782][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 42.850040][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 42.850339][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 42.869914][ T11] ------------[ cut here ]------------ | [ 42.870204][ T11] refcount_t: underflow; use-after-free. | [ 42.870537][ T11] WARNING: CPU: 3 PID: 11 at lib/refcount.c:28 refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) | [ 42.871209][ T11] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel [ 42.872141][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 42.872847][ T11] Workqueue: netns cleanup_net [ 42.873110][ T11] RIP: 0010:refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 42.873495][ T11] Code: f9 82 03 80 fb 01 0f 87 ee 02 b1 01 83 e3 01 0f 85 4d ff ff ff c6 05 9a f9 82 03 01 90 48 c7 c7 20 7a a2 8c e8 3e 05 2a ff 90 <0f> 0b 90 90 e9 2f ff ff ff 48 89 df e8 8c 68 a6 ff e9 b6 fe ff ff All code ======== 0: f9 stc 1: 82 (bad) 2: 03 80 fb 01 0f 87 add -0x78f0fe05(%rax),%eax 8: ee out %al,(%dx) 9: 02 b1 01 83 e3 01 add 0x1e38301(%rcx),%dh f: 0f 85 4d ff ff ff jne 0xffffffffffffff62 15: c6 05 9a f9 82 03 01 movb $0x1,0x382f99a(%rip) # 0x382f9b6 1c: 90 nop 1d: 48 c7 c7 20 7a a2 8c mov $0xffffffff8ca27a20,%rdi 24: e8 3e 05 2a ff call 0xffffffffff2a0567 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: e9 2f ff ff ff jmp 0xffffffffffffff62 33: 48 89 df mov %rbx,%rdi 36: e8 8c 68 a6 ff call 0xffffffffffa668c7 3b: e9 b6 fe ff ff jmp 0xfffffffffffffef6 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: e9 2f ff ff ff jmp 0xffffffffffffff38 9: 48 89 df mov %rbx,%rdi c: e8 8c 68 a6 ff call 0xffffffffffa6689d 11: e9 b6 fe ff ff jmp 0xfffffffffffffecc [ 42.874618][ T11] RSP: 0018:ffffc900000bfb98 EFLAGS: 00010282 [ 42.874987][ T11] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff89d1056f [ 42.875460][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 42.875944][ T11] RBP: 0000000000000003 R08: 0000000000000000 R09: fffff52000017f18 [ 42.876413][ T11] R10: ffffc900000bf8c7 R11: 205d313154202020 R12: ffff888009d0a000 [ 42.876879][ T11] R13: ffff888009d0adf8 R14: ffffc900000bfc98 R15: ffff888009d0abc0 [ 42.877359][ T11] FS: 0000000000000000(0000) GS:ffff888035e00000(0000) knlGS:0000000000000000 [ 42.877852][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.878254][ T11] CR2: 00007fe9a5197000 CR3: 000000001a534004 CR4: 00000000001706f0 [ 42.878709][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.879157][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.879573][ T11] Call Trace: [ 42.879749][ T11] [ 42.879913][ T11] ? __warn (kernel/panic.c:677) [ 42.880135][ T11] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 42.880429][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 42.880675][ T11] ? vprintk_emit (kernel/printk/printk.c:2313) [ 42.880937][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 42.881169][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 42.881471][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 42.881757][ T11] ? desc_read (./arch/x86/include/asm/atomic64_64.h:20 ./include/linux/atomic/atomic-arch-fallback.h:2615 ./include/linux/atomic/atomic-long.h:79 ./include/linux/atomic/atomic-instrumented.h:3196 kernel/printk/printk_ringbuffer.c:534) [ 42.882053][ T11] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 42.882369][ T11] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 42.882686][ T11] br_sysfs_delbr (net/bridge/br_sysfs_br.c:1086) [ 42.882986][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 42.883244][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 42.883580][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 42.883845][ T11] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 42.884186][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 42.884476][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 42.884756][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 42.885061][ T11] process_one_work (kernel/workqueue.c:2638) [ 42.885355][ T11] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 42.885610][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 42.885951][ T11] ? assign_work (kernel/workqueue.c:1101) [ 42.886229][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 42.886513][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 42.886803][ T11] kthread (kernel/kthread.c:388) [ 42.887048][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 42.887342][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 42.887594][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 42.887874][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 42.891007][ T11] ------------[ cut here ]------------ | [ 42.891295][ T11] sysfs group 'bridge' not found for kobject 'br1' | [ 42.891669][ T11] WARNING: CPU: 3 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 42.892207][ T11] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel [ 42.893164][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 42.893815][ T11] Workqueue: netns cleanup_net [ 42.894104][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 42.894437][ T11] Code: 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 45 48 8b 33 48 c7 c7 a0 a7 9c 8c e8 60 65 5e ff 90 <0f> 0b 90 90 48 83 c4 08 5b 5d 41 5c c3 cc cc cc cc e8 e9 c7 da ff All code ======== 0: 89 d9 mov %ebx,%ecx 2: 49 8b 14 24 mov (%r12),%rdx 6: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax d: fc ff df 10: 48 c1 e9 03 shr $0x3,%rcx 14: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) 18: 75 45 jne 0x5f 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 a7 9c 8c mov $0xffffffff8c9ca7a0,%rdi 24: e8 60 65 5e ff call 0xffffffffff5e6589 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 48 83 c4 08 add $0x8,%rsp 32: 5b pop %rbx 33: 5d pop %rbp 34: 41 5c pop %r12 36: c3 ret 37: cc int3 38: cc int3 39: cc int3 3a: cc int3 3b: e8 e9 c7 da ff call 0xffffffffffdac829 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 48 83 c4 08 add $0x8,%rsp 8: 5b pop %rbx 9: 5d pop %rbp a: 41 5c pop %r12 c: c3 ret d: cc int3 e: cc int3 f: cc int3 10: cc int3 11: e8 e9 c7 da ff call 0xffffffffffdac7ff [ 42.895584][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 42.895944][ T11] RAX: 0000000000000000 RBX: ffffffff8cdbe220 RCX: ffffffff89d1056f [ 42.896387][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 42.896847][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 42.897328][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff888009d0a628 [ 42.897799][ T11] R13: ffff888009d0adf8 R14: ffffc900000bfc98 R15: ffff888009d0abc0 [ 42.898263][ T11] FS: 0000000000000000(0000) GS:ffff888035e00000(0000) knlGS:0000000000000000 [ 42.898771][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.899142][ T11] CR2: 00007fe9a5197000 CR3: 000000001a534004 CR4: 00000000001706f0 [ 42.899609][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.900168][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.900631][ T11] Call Trace: [ 42.900809][ T11] [ 42.901046][ T11] ? __warn (kernel/panic.c:677) [ 42.901283][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 42.901568][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 42.901868][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 42.902243][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 42.902490][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 42.902754][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 42.903043][ T11] ? desc_read (./arch/x86/include/asm/atomic64_64.h:20 ./include/linux/atomic/atomic-arch-fallback.h:2615 ./include/linux/atomic/atomic-long.h:79 ./include/linux/atomic/atomic-instrumented.h:3196 kernel/printk/printk_ringbuffer.c:534) [ 42.903292][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 42.903621][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 42.903870][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 42.904162][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 42.904424][ T11] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 42.904759][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 42.905033][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 42.905284][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 42.905559][ T11] process_one_work (kernel/workqueue.c:2638) [ 42.905825][ T11] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 42.906080][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 42.906369][ T11] ? assign_work (kernel/workqueue.c:1101) [ 42.906616][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 42.906892][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 42.907182][ T11] kthread (kernel/kthread.c:388) [ 42.907423][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 42.907746][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 42.908006][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 42.908267][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 42.911551][ T11] ------------[ cut here ]------------ | [ 42.911842][ T11] sysfs group 'bridge' not found for kobject 'br2' | [ 42.912231][ T11] WARNING: CPU: 3 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 42.912744][ T11] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel [ 42.914067][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 42.914769][ T11] Workqueue: netns cleanup_net [ 42.915051][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 42.915383][ T11] Code: 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 45 48 8b 33 48 c7 c7 a0 a7 9c 8c e8 60 65 5e ff 90 <0f> 0b 90 90 48 83 c4 08 5b 5d 41 5c c3 cc cc cc cc e8 e9 c7 da ff All code ======== 0: 89 d9 mov %ebx,%ecx 2: 49 8b 14 24 mov (%r12),%rdx 6: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax d: fc ff df 10: 48 c1 e9 03 shr $0x3,%rcx 14: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) 18: 75 45 jne 0x5f 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 a7 9c 8c mov $0xffffffff8c9ca7a0,%rdi 24: e8 60 65 5e ff call 0xffffffffff5e6589 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 48 83 c4 08 add $0x8,%rsp 32: 5b pop %rbx 33: 5d pop %rbp 34: 41 5c pop %r12 36: c3 ret 37: cc int3 38: cc int3 39: cc int3 3a: cc int3 3b: e8 e9 c7 da ff call 0xffffffffffdac829 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 48 83 c4 08 add $0x8,%rsp 8: 5b pop %rbx 9: 5d pop %rbp a: 41 5c pop %r12 c: c3 ret d: cc int3 e: cc int3 f: cc int3 10: cc int3 11: e8 e9 c7 da ff call 0xffffffffffdac7ff [ 42.916492][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 42.916837][ T11] RAX: 0000000000000000 RBX: ffffffff8cdbe220 RCX: ffffffff89d1056f [ 42.917286][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 42.917756][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 42.918179][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff888009dca628 [ 42.918596][ T11] R13: ffff888009dcadf8 R14: ffffc900000bfc98 R15: ffff888009dcabc0 [ 42.919016][ T11] FS: 0000000000000000(0000) GS:ffff888035e00000(0000) knlGS:0000000000000000 [ 42.919484][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.919831][ T11] CR2: 00007fe9a5197000 CR3: 000000001a534004 CR4: 00000000001706f0 [ 42.920257][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.920698][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.921144][ T11] Call Trace: [ 42.921321][ T11] [ 42.921481][ T11] ? __warn (kernel/panic.c:677) [ 42.921700][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 42.922032][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 42.922312][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 42.922560][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 42.922791][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 42.923048][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 42.923340][ T11] ? desc_read (./arch/x86/include/asm/atomic64_64.h:20 ./include/linux/atomic/atomic-arch-fallback.h:2615 ./include/linux/atomic/atomic-long.h:79 ./include/linux/atomic/atomic-instrumented.h:3196 kernel/printk/printk_ringbuffer.c:534) [ 42.923593][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 42.923908][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 42.924182][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 42.924493][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 42.924749][ T11] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 42.925075][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 42.925342][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 42.925591][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 42.925864][ T11] process_one_work (kernel/workqueue.c:2638) [ 42.926134][ T11] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 42.926376][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 42.926661][ T11] ? assign_work (kernel/workqueue.c:1101) [ 42.926910][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 42.927169][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 42.927441][ T11] kthread (kernel/kthread.c:388) [ 42.927659][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 42.927914][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 42.928152][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 42.928399][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 43.151340][ T11] ------------[ cut here ]------------ | [ 43.151642][ T11] sysfs group 'bridge' not found for kobject 'br1' | [ 43.152028][ T11] WARNING: CPU: 3 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 43.152513][ T11] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel [ 43.153384][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 43.154056][ T11] Workqueue: netns cleanup_net [ 43.154332][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 43.154705][ T11] Code: 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 45 48 8b 33 48 c7 c7 a0 a7 9c 8c e8 60 65 5e ff 90 <0f> 0b 90 90 48 83 c4 08 5b 5d 41 5c c3 cc cc cc cc e8 e9 c7 da ff All code ======== 0: 89 d9 mov %ebx,%ecx 2: 49 8b 14 24 mov (%r12),%rdx 6: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax d: fc ff df 10: 48 c1 e9 03 shr $0x3,%rcx 14: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) 18: 75 45 jne 0x5f 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 a7 9c 8c mov $0xffffffff8c9ca7a0,%rdi 24: e8 60 65 5e ff call 0xffffffffff5e6589 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 48 83 c4 08 add $0x8,%rsp 32: 5b pop %rbx 33: 5d pop %rbp 34: 41 5c pop %r12 36: c3 ret 37: cc int3 38: cc int3 39: cc int3 3a: cc int3 3b: e8 e9 c7 da ff call 0xffffffffffdac829 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 48 83 c4 08 add $0x8,%rsp 8: 5b pop %rbx 9: 5d pop %rbp a: 41 5c pop %r12 c: c3 ret d: cc int3 e: cc int3 f: cc int3 10: cc int3 11: e8 e9 c7 da ff call 0xffffffffffdac7ff [ 43.155826][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 43.156181][ T11] RAX: 0000000000000000 RBX: ffffffff8cdbe220 RCX: ffffffff89d1056f [ 43.156651][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 43.157117][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 43.157574][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff888009c02628 [ 43.158047][ T11] R13: ffff888009c02df8 R14: ffffc900000bfc98 R15: ffff888009c02bc0 [ 43.158482][ T11] FS: 0000000000000000(0000) GS:ffff888035e00000(0000) knlGS:0000000000000000 [ 43.159023][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.159398][ T11] CR2: 00007f9e3039e270 CR3: 000000001a534004 CR4: 00000000001706f0 [ 43.159840][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.160263][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 43.160683][ T11] Call Trace: [ 43.160866][ T11] [ 43.161033][ T11] ? __warn (kernel/panic.c:677) [ 43.161258][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 43.161514][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 43.161818][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 43.162107][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 43.162371][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 43.162655][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 43.162955][ T11] ? desc_read (./arch/x86/include/asm/atomic64_64.h:20 ./include/linux/atomic/atomic-arch-fallback.h:2615 ./include/linux/atomic/atomic-long.h:79 ./include/linux/atomic/atomic-instrumented.h:3196 kernel/printk/printk_ringbuffer.c:534) [ 43.163220][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 43.163520][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 43.163821][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 43.164135][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 43.164410][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 43.164702][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 43.164982][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 43.165291][ T11] process_one_work (kernel/workqueue.c:2638) [ 43.165604][ T11] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 43.165867][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 43.166197][ T11] ? assign_work (kernel/workqueue.c:1101) [ 43.166469][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 43.166730][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 43.167037][ T11] kthread (kernel/kthread.c:388) [ 43.167305][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 43.167565][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 43.167829][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 43.168124][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 43.171327][ T11] ------------[ cut here ]------------ | [ 43.171614][ T11] sysfs group 'bridge' not found for kobject 'br2' | [ 43.171996][ T11] WARNING: CPU: 3 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 43.172476][ T11] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel [ 43.173330][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 43.173972][ T11] Workqueue: netns cleanup_net [ 43.174228][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 43.174561][ T11] Code: 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 45 48 8b 33 48 c7 c7 a0 a7 9c 8c e8 60 65 5e ff 90 <0f> 0b 90 90 48 83 c4 08 5b 5d 41 5c c3 cc cc cc cc e8 e9 c7 da ff All code ======== 0: 89 d9 mov %ebx,%ecx 2: 49 8b 14 24 mov (%r12),%rdx 6: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax d: fc ff df 10: 48 c1 e9 03 shr $0x3,%rcx 14: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) 18: 75 45 jne 0x5f 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 a7 9c 8c mov $0xffffffff8c9ca7a0,%rdi 24: e8 60 65 5e ff call 0xffffffffff5e6589 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 48 83 c4 08 add $0x8,%rsp 32: 5b pop %rbx 33: 5d pop %rbp 34: 41 5c pop %r12 36: c3 ret 37: cc int3 38: cc int3 39: cc int3 3a: cc int3 3b: e8 e9 c7 da ff call 0xffffffffffdac829 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 48 83 c4 08 add $0x8,%rsp 8: 5b pop %rbx 9: 5d pop %rbp a: 41 5c pop %r12 c: c3 ret d: cc int3 e: cc int3 f: cc int3 10: cc int3 11: e8 e9 c7 da ff call 0xffffffffffdac7ff [ 43.175648][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 43.176029][ T11] RAX: 0000000000000000 RBX: ffffffff8cdbe220 RCX: ffffffff89d1056f [ 43.176483][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 43.176969][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 43.177443][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff888009d82628 [ 43.177862][ T11] R13: ffff888009d82df8 R14: ffffc900000bfc98 R15: ffff888009d82bc0 [ 43.178343][ T11] FS: 0000000000000000(0000) GS:ffff888035e00000(0000) knlGS:0000000000000000 [ 43.178866][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 43.179275][ T11] CR2: 00007f9e3039e270 CR3: 000000001a534004 CR4: 00000000001706f0 [ 43.179739][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 43.180197][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 43.180635][ T11] Call Trace: [ 43.180844][ T11] [ 43.181037][ T11] ? __warn (kernel/panic.c:677) [ 43.181288][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 43.181569][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 43.181908][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 43.182190][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 43.182456][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 43.182710][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 43.182990][ T11] ? desc_read (./arch/x86/include/asm/atomic64_64.h:20 ./include/linux/atomic/atomic-arch-fallback.h:2615 ./include/linux/atomic/atomic-long.h:79 ./include/linux/atomic/atomic-instrumented.h:3196 kernel/printk/printk_ringbuffer.c:534) [ 43.183286][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 43.183592][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 43.183876][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 43.184211][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 43.184470][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 43.184759][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 43.185052][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 43.185360][ T11] process_one_work (kernel/workqueue.c:2638) [ 43.185642][ T11] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 43.185887][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 43.186182][ T11] ? assign_work (kernel/workqueue.c:1101) [ 43.186482][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 43.186757][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 43.187047][ T11] kthread (kernel/kthread.c:388) [ 43.187286][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 43.187550][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 43.187791][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 43.188045][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 60.764017][ T11] ------------[ cut here ]------------ | [ 60.764355][ T11] sysfs group 'bridge' not found for kobject 'br1' | [ 60.764787][ T11] WARNING: CPU: 1 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 60.765329][ T11] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel [ 60.766271][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 60.766963][ T11] Workqueue: netns cleanup_net [ 60.767224][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 60.767536][ T11] Code: 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 45 48 8b 33 48 c7 c7 a0 a7 9c 8c e8 60 65 5e ff 90 <0f> 0b 90 90 48 83 c4 08 5b 5d 41 5c c3 cc cc cc cc e8 e9 c7 da ff All code ======== 0: 89 d9 mov %ebx,%ecx 2: 49 8b 14 24 mov (%r12),%rdx 6: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax d: fc ff df 10: 48 c1 e9 03 shr $0x3,%rcx 14: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) 18: 75 45 jne 0x5f 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 a7 9c 8c mov $0xffffffff8c9ca7a0,%rdi 24: e8 60 65 5e ff call 0xffffffffff5e6589 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 48 83 c4 08 add $0x8,%rsp 32: 5b pop %rbx 33: 5d pop %rbp 34: 41 5c pop %r12 36: c3 ret 37: cc int3 38: cc int3 39: cc int3 3a: cc int3 3b: e8 e9 c7 da ff call 0xffffffffffdac829 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 48 83 c4 08 add $0x8,%rsp 8: 5b pop %rbx 9: 5d pop %rbp a: 41 5c pop %r12 c: c3 ret d: cc int3 e: cc int3 f: cc int3 10: cc int3 11: e8 e9 c7 da ff call 0xffffffffffdac7ff [ 60.768700][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 60.769056][ T11] RAX: 0000000000000000 RBX: ffffffff8cdbe220 RCX: ffffffff89d1056f [ 60.769517][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 60.769981][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 60.770443][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff88800a352628 [ 60.770911][ T11] R13: ffff88800a352df8 R14: ffffc900000bfc98 R15: ffff88800a352bc0 [ 60.771365][ T11] FS: 0000000000000000(0000) GS:ffff888035600000(0000) knlGS:0000000000000000 [ 60.771907][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.772253][ T11] CR2: 00007fc1870bd000 CR3: 000000001a534002 CR4: 00000000001706f0 [ 60.772671][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.773091][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.773506][ T11] Call Trace: [ 60.773680][ T11] [ 60.773836][ T11] ? __warn (kernel/panic.c:677) [ 60.774096][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 60.774369][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 60.774713][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 60.774990][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 60.775234][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 60.775549][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 60.775880][ T11] ? desc_read (./arch/x86/include/asm/atomic64_64.h:20 ./include/linux/atomic/atomic-arch-fallback.h:2615 ./include/linux/atomic/atomic-long.h:79 ./include/linux/atomic/atomic-instrumented.h:3196 kernel/printk/printk_ringbuffer.c:534) [ 60.776162][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 60.776507][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 60.776772][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 60.777125][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 60.777394][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 60.777695][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 60.778002][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 60.778279][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 60.778618][ T11] process_one_work (kernel/workqueue.c:2638) [ 60.778920][ T11] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 60.779190][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 60.779507][ T11] ? assign_work (kernel/workqueue.c:1101) [ 60.779824][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 60.780089][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 60.780421][ T11] kthread (kernel/kthread.c:388) [ 60.780671][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 60.780956][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 60.781209][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 60.781470][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 60.784659][ T11] ------------[ cut here ]------------ | [ 60.784991][ T11] sysfs group 'bridge' not found for kobject 'br2' | [ 60.785362][ T11] WARNING: CPU: 1 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 60.785858][ T11] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel [ 60.786720][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 60.787367][ T11] Workqueue: netns cleanup_net [ 60.787624][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 60.787970][ T11] Code: 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 45 48 8b 33 48 c7 c7 a0 a7 9c 8c e8 60 65 5e ff 90 <0f> 0b 90 90 48 83 c4 08 5b 5d 41 5c c3 cc cc cc cc e8 e9 c7 da ff All code ======== 0: 89 d9 mov %ebx,%ecx 2: 49 8b 14 24 mov (%r12),%rdx 6: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax d: fc ff df 10: 48 c1 e9 03 shr $0x3,%rcx 14: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) 18: 75 45 jne 0x5f 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 a7 9c 8c mov $0xffffffff8c9ca7a0,%rdi 24: e8 60 65 5e ff call 0xffffffffff5e6589 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 48 83 c4 08 add $0x8,%rsp 32: 5b pop %rbx 33: 5d pop %rbp 34: 41 5c pop %r12 36: c3 ret 37: cc int3 38: cc int3 39: cc int3 3a: cc int3 3b: e8 e9 c7 da ff call 0xffffffffffdac829 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 48 83 c4 08 add $0x8,%rsp 8: 5b pop %rbx 9: 5d pop %rbp a: 41 5c pop %r12 c: c3 ret d: cc int3 e: cc int3 f: cc int3 10: cc int3 11: e8 e9 c7 da ff call 0xffffffffffdac7ff [ 60.789088][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 60.789444][ T11] RAX: 0000000000000000 RBX: ffffffff8cdbe220 RCX: ffffffff89d1056f [ 60.789893][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 60.790373][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 60.790818][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff888006362628 [ 60.791239][ T11] R13: ffff888006362df8 R14: ffffc900000bfc98 R15: ffff888006362bc0 [ 60.791666][ T11] FS: 0000000000000000(0000) GS:ffff888035600000(0000) knlGS:0000000000000000 [ 60.792154][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.792503][ T11] CR2: 00007fc1870bd000 CR3: 000000001a534002 CR4: 00000000001706f0 [ 60.792946][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.793385][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.793823][ T11] Call Trace: [ 60.794005][ T11] [ 60.794216][ T11] ? __warn (kernel/panic.c:677) [ 60.794439][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 60.794705][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 60.794985][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 60.795228][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 60.795459][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 60.795743][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 60.796015][ T11] ? desc_read (./arch/x86/include/asm/atomic64_64.h:20 ./include/linux/atomic/atomic-arch-fallback.h:2615 ./include/linux/atomic/atomic-long.h:79 ./include/linux/atomic/atomic-instrumented.h:3196 kernel/printk/printk_ringbuffer.c:534) [ 60.796254][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 60.796533][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 60.796815][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 60.797179][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 60.797420][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 60.797670][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 60.797939][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 60.798192][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 60.798518][ T11] process_one_work (kernel/workqueue.c:2638) [ 60.798821][ T11] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 60.799074][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 60.799377][ T11] ? assign_work (kernel/workqueue.c:1101) [ 60.799624][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 60.800008][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 60.800281][ T11] kthread (kernel/kthread.c:388) [ 60.800530][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 60.800853][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 60.801099][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 60.801365][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 61.044216][ T11] ------------[ cut here ]------------ | [ 61.044594][ T11] sysfs group 'bridge' not found for kobject 'br1' | [ 61.044999][ T11] WARNING: CPU: 3 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 61.045509][ T11] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel [ 61.046484][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 61.047233][ T11] Workqueue: netns cleanup_net [ 61.047495][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 61.047824][ T11] Code: 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 45 48 8b 33 48 c7 c7 a0 a7 9c 8c e8 60 65 5e ff 90 <0f> 0b 90 90 48 83 c4 08 5b 5d 41 5c c3 cc cc cc cc e8 e9 c7 da ff All code ======== 0: 89 d9 mov %ebx,%ecx 2: 49 8b 14 24 mov (%r12),%rdx 6: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax d: fc ff df 10: 48 c1 e9 03 shr $0x3,%rcx 14: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) 18: 75 45 jne 0x5f 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 a7 9c 8c mov $0xffffffff8c9ca7a0,%rdi 24: e8 60 65 5e ff call 0xffffffffff5e6589 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 48 83 c4 08 add $0x8,%rsp 32: 5b pop %rbx 33: 5d pop %rbp 34: 41 5c pop %r12 36: c3 ret 37: cc int3 38: cc int3 39: cc int3 3a: cc int3 3b: e8 e9 c7 da ff call 0xffffffffffdac829 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 48 83 c4 08 add $0x8,%rsp 8: 5b pop %rbx 9: 5d pop %rbp a: 41 5c pop %r12 c: c3 ret d: cc int3 e: cc int3 f: cc int3 10: cc int3 11: e8 e9 c7 da ff call 0xffffffffffdac7ff [ 61.048912][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 61.049443][ T11] RAX: 0000000000000000 RBX: ffffffff8cdbe220 RCX: ffffffff89d1056f [ 61.050115][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 61.050732][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 61.051364][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff888007302628 [ 61.051995][ T11] R13: ffff888007302df8 R14: ffffc900000bfc98 R15: ffff888007302bc0 [ 61.052623][ T11] FS: 0000000000000000(0000) GS:ffff888035e00000(0000) knlGS:0000000000000000 [ 61.053366][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.053885][ T11] CR2: 00007efd2ac8a000 CR3: 000000001a534004 CR4: 00000000001706f0 [ 61.054534][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.055186][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.055860][ T11] Call Trace: [ 61.056161][ T11] [ 61.056429][ T11] ? __warn (kernel/panic.c:677) [ 61.056779][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 61.057192][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 61.057651][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 61.058052][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 61.058414][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 61.058810][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 61.059251][ T11] ? desc_read (./arch/x86/include/asm/atomic64_64.h:20 ./include/linux/atomic/atomic-arch-fallback.h:2615 ./include/linux/atomic/atomic-long.h:79 ./include/linux/atomic/atomic-instrumented.h:3196 kernel/printk/printk_ringbuffer.c:534) [ 61.059611][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 61.060045][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 61.060422][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 61.060866][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 61.061287][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 61.061739][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 61.062170][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 61.062621][ T11] process_one_work (kernel/workqueue.c:2638) [ 61.063038][ T11] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 61.063403][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 61.063834][ T11] ? assign_work (kernel/workqueue.c:1101) [ 61.064222][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 61.064621][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 61.065080][ T11] kthread (kernel/kthread.c:388) [ 61.065458][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 61.065854][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 61.066267][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 61.066684][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 61.071409][ T11] ------------[ cut here ]------------ | [ 61.071876][ T11] sysfs group 'bridge' not found for kobject 'br2' | [ 61.072522][ T11] WARNING: CPU: 3 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 61.073927][ T11] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel [ 61.075407][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 61.076464][ T11] Workqueue: netns cleanup_net [ 61.076852][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 61.077326][ T11] Code: 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 45 48 8b 33 48 c7 c7 a0 a7 9c 8c e8 60 65 5e ff 90 <0f> 0b 90 90 48 83 c4 08 5b 5d 41 5c c3 cc cc cc cc e8 e9 c7 da ff All code ======== 0: 89 d9 mov %ebx,%ecx 2: 49 8b 14 24 mov (%r12),%rdx 6: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax d: fc ff df 10: 48 c1 e9 03 shr $0x3,%rcx 14: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) 18: 75 45 jne 0x5f 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 a7 9c 8c mov $0xffffffff8c9ca7a0,%rdi 24: e8 60 65 5e ff call 0xffffffffff5e6589 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 48 83 c4 08 add $0x8,%rsp 32: 5b pop %rbx 33: 5d pop %rbp 34: 41 5c pop %r12 36: c3 ret 37: cc int3 38: cc int3 39: cc int3 3a: cc int3 3b: e8 e9 c7 da ff call 0xffffffffffdac829 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 48 83 c4 08 add $0x8,%rsp 8: 5b pop %rbx 9: 5d pop %rbp a: 41 5c pop %r12 c: c3 ret d: cc int3 e: cc int3 f: cc int3 10: cc int3 11: e8 e9 c7 da ff call 0xffffffffffdac7ff [ 61.078972][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 61.079512][ T11] RAX: 0000000000000000 RBX: ffffffff8cdbe220 RCX: ffffffff89d1056f [ 61.080241][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 61.080982][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 61.081702][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff88800a38a628 [ 61.082431][ T11] R13: ffff88800a38adf8 R14: ffffc900000bfc98 R15: ffff88800a38abc0 [ 61.083169][ T11] FS: 0000000000000000(0000) GS:ffff888035e00000(0000) knlGS:0000000000000000 [ 61.083969][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.084562][ T11] CR2: 00007efd2ac8a000 CR3: 000000001a534004 CR4: 00000000001706f0 [ 61.085302][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.086036][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.086749][ T11] Call Trace: [ 61.087030][ T11] [ 61.087265][ T11] ? __warn (kernel/panic.c:677) [ 61.087594][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 61.087991][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 61.088410][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 61.088780][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 61.089138][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 61.089514][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 61.089926][ T11] ? desc_read (./arch/x86/include/asm/atomic64_64.h:20 ./include/linux/atomic/atomic-arch-fallback.h:2615 ./include/linux/atomic/atomic-long.h:79 ./include/linux/atomic/atomic-instrumented.h:3196 kernel/printk/printk_ringbuffer.c:534) [ 61.090283][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 61.090746][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 61.091193][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 61.091662][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 61.092113][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 61.092581][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 61.093009][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 61.093497][ T11] process_one_work (kernel/workqueue.c:2638) [ 61.093947][ T11] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 61.094311][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 61.094772][ T11] ? assign_work (kernel/workqueue.c:1101) [ 61.095183][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 61.095597][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 61.096054][ T11] kthread (kernel/kthread.c:388) [ 61.096397][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 61.096800][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 61.097170][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 61.097562][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 79.388874][ T11] ------------[ cut here ]------------ | [ 79.389345][ T11] sysfs group 'bridge' not found for kobject 'br1' | [ 79.389921][ T11] WARNING: CPU: 2 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 79.390628][ T11] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel [ 79.392033][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 79.392995][ T11] Workqueue: netns cleanup_net [ 79.393436][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 79.393975][ T11] Code: 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 45 48 8b 33 48 c7 c7 a0 a7 9c 8c e8 60 65 5e ff 90 <0f> 0b 90 90 48 83 c4 08 5b 5d 41 5c c3 cc cc cc cc e8 e9 c7 da ff All code ======== 0: 89 d9 mov %ebx,%ecx 2: 49 8b 14 24 mov (%r12),%rdx 6: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax d: fc ff df 10: 48 c1 e9 03 shr $0x3,%rcx 14: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) 18: 75 45 jne 0x5f 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 a7 9c 8c mov $0xffffffff8c9ca7a0,%rdi 24: e8 60 65 5e ff call 0xffffffffff5e6589 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 48 83 c4 08 add $0x8,%rsp 32: 5b pop %rbx 33: 5d pop %rbp 34: 41 5c pop %r12 36: c3 ret 37: cc int3 38: cc int3 39: cc int3 3a: cc int3 3b: e8 e9 c7 da ff call 0xffffffffffdac829 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 48 83 c4 08 add $0x8,%rsp 8: 5b pop %rbx 9: 5d pop %rbp a: 41 5c pop %r12 c: c3 ret d: cc int3 e: cc int3 f: cc int3 10: cc int3 11: e8 e9 c7 da ff call 0xffffffffffdac7ff [ 79.395693][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 79.396242][ T11] RAX: 0000000000000000 RBX: ffffffff8cdbe220 RCX: ffffffff89d1056f [ 79.396973][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 79.397687][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 79.398416][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff888009e62628 [ 79.399116][ T11] R13: ffff888009e62df8 R14: ffffc900000bfc98 R15: ffff888009e62bc0 [ 79.399810][ T11] FS: 0000000000000000(0000) GS:ffff888035a00000(0000) knlGS:0000000000000000 [ 79.400595][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.401152][ T11] CR2: 00005561e11b90f0 CR3: 000000001a534005 CR4: 00000000001706f0 [ 79.401782][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.402411][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.403095][ T11] Call Trace: [ 79.403381][ T11] [ 79.403655][ T11] ? __warn (kernel/panic.c:677) [ 79.404078][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 79.404552][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 79.405002][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 79.405391][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 79.405827][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 79.406285][ T11] ? desc_read (./arch/x86/include/asm/atomic64_64.h:20 ./include/linux/atomic/atomic-arch-fallback.h:2615 ./include/linux/atomic/atomic-long.h:79 ./include/linux/atomic/atomic-instrumented.h:3196 kernel/printk/printk_ringbuffer.c:534) [ 79.406723][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 79.407192][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 79.407629][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 79.408112][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 79.408543][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 79.408963][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 79.409447][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 79.409841][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 79.410294][ T11] process_one_work (kernel/workqueue.c:2638) [ 79.410692][ T11] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 79.411111][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 79.411596][ T11] ? assign_work (kernel/workqueue.c:1101) [ 79.412030][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 79.412493][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 79.412958][ T11] kthread (kernel/kthread.c:388) [ 79.413287][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 79.413666][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 79.414086][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 79.414498][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 79.419213][ T11] ------------[ cut here ]------------ | [ 79.419717][ T11] sysfs group 'bridge' not found for kobject 'br2' | [ 79.420307][ T11] WARNING: CPU: 2 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 79.421073][ T11] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel [ 79.422469][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 79.423542][ T11] Workqueue: netns cleanup_net [ 79.424003][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 79.424504][ T11] Code: 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 45 48 8b 33 48 c7 c7 a0 a7 9c 8c e8 60 65 5e ff 90 <0f> 0b 90 90 48 83 c4 08 5b 5d 41 5c c3 cc cc cc cc e8 e9 c7 da ff All code ======== 0: 89 d9 mov %ebx,%ecx 2: 49 8b 14 24 mov (%r12),%rdx 6: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax d: fc ff df 10: 48 c1 e9 03 shr $0x3,%rcx 14: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) 18: 75 45 jne 0x5f 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 a7 9c 8c mov $0xffffffff8c9ca7a0,%rdi 24: e8 60 65 5e ff call 0xffffffffff5e6589 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 48 83 c4 08 add $0x8,%rsp 32: 5b pop %rbx 33: 5d pop %rbp 34: 41 5c pop %r12 36: c3 ret 37: cc int3 38: cc int3 39: cc int3 3a: cc int3 3b: e8 e9 c7 da ff call 0xffffffffffdac829 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 48 83 c4 08 add $0x8,%rsp 8: 5b pop %rbx 9: 5d pop %rbp a: 41 5c pop %r12 c: c3 ret d: cc int3 e: cc int3 f: cc int3 10: cc int3 11: e8 e9 c7 da ff call 0xffffffffffdac7ff [ 79.426254][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 79.426782][ T11] RAX: 0000000000000000 RBX: ffffffff8cdbe220 RCX: ffffffff89d1056f [ 79.427464][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 79.428204][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 79.428892][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff888009752628 [ 79.429597][ T11] R13: ffff888009752df8 R14: ffffc900000bfc98 R15: ffff888009752bc0 [ 79.430276][ T11] FS: 0000000000000000(0000) GS:ffff888035a00000(0000) knlGS:0000000000000000 [ 79.430991][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.431546][ T11] CR2: 00005561e11b90f0 CR3: 000000001a534005 CR4: 00000000001706f0 [ 79.432187][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.432844][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.433477][ T11] Call Trace: [ 79.433749][ T11] [ 79.433997][ T11] ? __warn (kernel/panic.c:677) [ 79.434378][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 79.434811][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 79.435271][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 79.435677][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 79.436071][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 79.436470][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 79.436934][ T11] ? desc_read (./arch/x86/include/asm/atomic64_64.h:20 ./include/linux/atomic/atomic-arch-fallback.h:2615 ./include/linux/atomic/atomic-long.h:79 ./include/linux/atomic/atomic-instrumented.h:3196 kernel/printk/printk_ringbuffer.c:534) [ 79.437327][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 79.437778][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 79.438351][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 79.438811][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 79.439432][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 79.439806][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 79.440207][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 79.440587][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 79.441013][ T11] process_one_work (kernel/workqueue.c:2638) [ 79.441482][ T11] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 79.441863][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 79.442370][ T11] ? assign_work (kernel/workqueue.c:1101) [ 79.442781][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 79.443197][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 79.443605][ T11] kthread (kernel/kthread.c:388) [ 79.443939][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 79.444300][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 79.444658][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 79.445044][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 79.697333][ T11] ------------[ cut here ]------------ | [ 79.697691][ T11] sysfs group 'bridge' not found for kobject 'br1' | [ 79.698076][ T11] WARNING: CPU: 1 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 79.698653][ T11] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel [ 79.699645][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 79.700387][ T11] Workqueue: netns cleanup_net [ 79.700650][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 79.700964][ T11] Code: 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 45 48 8b 33 48 c7 c7 a0 a7 9c 8c e8 60 65 5e ff 90 <0f> 0b 90 90 48 83 c4 08 5b 5d 41 5c c3 cc cc cc cc e8 e9 c7 da ff All code ======== 0: 89 d9 mov %ebx,%ecx 2: 49 8b 14 24 mov (%r12),%rdx 6: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax d: fc ff df 10: 48 c1 e9 03 shr $0x3,%rcx 14: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) 18: 75 45 jne 0x5f 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 a7 9c 8c mov $0xffffffff8c9ca7a0,%rdi 24: e8 60 65 5e ff call 0xffffffffff5e6589 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 48 83 c4 08 add $0x8,%rsp 32: 5b pop %rbx 33: 5d pop %rbp 34: 41 5c pop %r12 36: c3 ret 37: cc int3 38: cc int3 39: cc int3 3a: cc int3 3b: e8 e9 c7 da ff call 0xffffffffffdac829 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 48 83 c4 08 add $0x8,%rsp 8: 5b pop %rbx 9: 5d pop %rbp a: 41 5c pop %r12 c: c3 ret d: cc int3 e: cc int3 f: cc int3 10: cc int3 11: e8 e9 c7 da ff call 0xffffffffffdac7ff [ 79.701993][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 79.702321][ T11] RAX: 0000000000000000 RBX: ffffffff8cdbe220 RCX: ffffffff89d1056f [ 79.702741][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 79.703167][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 79.703586][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff8880099e2628 [ 79.704015][ T11] R13: ffff8880099e2df8 R14: ffffc900000bfc98 R15: ffff8880099e2bc0 [ 79.704502][ T11] FS: 0000000000000000(0000) GS:ffff888035600000(0000) knlGS:0000000000000000 [ 79.705075][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.705492][ T11] CR2: 00007f4b7f7bf270 CR3: 000000001a534003 CR4: 00000000001706f0 [ 79.705992][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.706463][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.706970][ T11] Call Trace: [ 79.707150][ T11] [ 79.707308][ T11] ? __warn (kernel/panic.c:677) [ 79.707527][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 79.707812][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 79.708154][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 79.708414][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 79.708685][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 79.709036][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 79.709342][ T11] ? desc_read (./arch/x86/include/asm/atomic64_64.h:20 ./include/linux/atomic/atomic-arch-fallback.h:2615 ./include/linux/atomic/atomic-long.h:79 ./include/linux/atomic/atomic-instrumented.h:3196 kernel/printk/printk_ringbuffer.c:534) [ 79.709608][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 79.709944][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 79.710194][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 79.710511][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 79.710794][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 79.711085][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 79.711374][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 79.711709][ T11] process_one_work (kernel/workqueue.c:2638) [ 79.712010][ T11] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 79.712285][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 79.712621][ T11] ? assign_work (kernel/workqueue.c:1101) [ 79.712867][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 79.713129][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 79.713404][ T11] kthread (kernel/kthread.c:388) [ 79.713620][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 79.713867][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 79.714143][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 79.714390][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 79.717411][ T11] ------------[ cut here ]------------ | [ 79.717741][ T11] sysfs group 'bridge' not found for kobject 'br2' | [ 79.718135][ T11] WARNING: CPU: 1 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 79.718621][ T11] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel [ 79.719785][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 79.720471][ T11] Workqueue: netns cleanup_net [ 79.720763][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 79.721137][ T11] Code: 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 45 48 8b 33 48 c7 c7 a0 a7 9c 8c e8 60 65 5e ff 90 <0f> 0b 90 90 48 83 c4 08 5b 5d 41 5c c3 cc cc cc cc e8 e9 c7 da ff All code ======== 0: 89 d9 mov %ebx,%ecx 2: 49 8b 14 24 mov (%r12),%rdx 6: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax d: fc ff df 10: 48 c1 e9 03 shr $0x3,%rcx 14: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) 18: 75 45 jne 0x5f 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 a7 9c 8c mov $0xffffffff8c9ca7a0,%rdi 24: e8 60 65 5e ff call 0xffffffffff5e6589 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 48 83 c4 08 add $0x8,%rsp 32: 5b pop %rbx 33: 5d pop %rbp 34: 41 5c pop %r12 36: c3 ret 37: cc int3 38: cc int3 39: cc int3 3a: cc int3 3b: e8 e9 c7 da ff call 0xffffffffffdac829 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 48 83 c4 08 add $0x8,%rsp 8: 5b pop %rbx 9: 5d pop %rbp a: 41 5c pop %r12 c: c3 ret d: cc int3 e: cc int3 f: cc int3 10: cc int3 11: e8 e9 c7 da ff call 0xffffffffffdac7ff [ 79.722740][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 79.723075][ T11] RAX: 0000000000000000 RBX: ffffffff8cdbe220 RCX: ffffffff89d1056f [ 79.723500][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 79.723922][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 79.724338][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff88800a7ba628 [ 79.724766][ T11] R13: ffff88800a7badf8 R14: ffffc900000bfc98 R15: ffff88800a7babc0 [ 79.725201][ T11] FS: 0000000000000000(0000) GS:ffff888035600000(0000) knlGS:0000000000000000 [ 79.725718][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.726134][ T11] CR2: 00007f4b7f7bf270 CR3: 000000001a534003 CR4: 00000000001706f0 [ 79.726605][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.727031][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.727449][ T11] Call Trace: [ 79.727626][ T11] [ 79.727783][ T11] ? __warn (kernel/panic.c:677) [ 79.728013][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 79.728277][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 79.728556][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 79.728801][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 79.729040][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 79.729291][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 79.729606][ T11] ? desc_read (./arch/x86/include/asm/atomic64_64.h:20 ./include/linux/atomic/atomic-arch-fallback.h:2615 ./include/linux/atomic/atomic-long.h:79 ./include/linux/atomic/atomic-instrumented.h:3196 kernel/printk/printk_ringbuffer.c:534) [ 79.729848][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 79.730162][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 79.730446][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 79.730756][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 79.731010][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 79.731278][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 79.731530][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 79.731804][ T11] process_one_work (kernel/workqueue.c:2638) [ 79.732078][ T11] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 79.732323][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 79.732609][ T11] ? assign_work (kernel/workqueue.c:1101) [ 79.732939][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 79.733236][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 79.733572][ T11] kthread (kernel/kthread.c:388) [ 79.733824][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 79.734092][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 79.734387][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 79.734696][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 97.519331][ T11] ------------[ cut here ]------------ | [ 97.519648][ T11] sysfs group 'bridge' not found for kobject 'br1' | [ 97.520047][ T11] WARNING: CPU: 3 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 97.520580][ T11] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel [ 97.521531][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 97.522185][ T11] Workqueue: netns cleanup_net [ 97.522448][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 97.522757][ T11] Code: 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 45 48 8b 33 48 c7 c7 a0 a7 9c 8c e8 60 65 5e ff 90 <0f> 0b 90 90 48 83 c4 08 5b 5d 41 5c c3 cc cc cc cc e8 e9 c7 da ff All code ======== 0: 89 d9 mov %ebx,%ecx 2: 49 8b 14 24 mov (%r12),%rdx 6: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax d: fc ff df 10: 48 c1 e9 03 shr $0x3,%rcx 14: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) 18: 75 45 jne 0x5f 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 a7 9c 8c mov $0xffffffff8c9ca7a0,%rdi 24: e8 60 65 5e ff call 0xffffffffff5e6589 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 48 83 c4 08 add $0x8,%rsp 32: 5b pop %rbx 33: 5d pop %rbp 34: 41 5c pop %r12 36: c3 ret 37: cc int3 38: cc int3 39: cc int3 3a: cc int3 3b: e8 e9 c7 da ff call 0xffffffffffdac829 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 48 83 c4 08 add $0x8,%rsp 8: 5b pop %rbx 9: 5d pop %rbp a: 41 5c pop %r12 c: c3 ret d: cc int3 e: cc int3 f: cc int3 10: cc int3 11: e8 e9 c7 da ff call 0xffffffffffdac7ff [ 97.523779][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 97.524190][ T11] RAX: 0000000000000000 RBX: ffffffff8cdbe220 RCX: ffffffff89d1056f [ 97.524650][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 97.525131][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 97.525626][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff8880087b2628 [ 97.526119][ T11] R13: ffff8880087b2df8 R14: ffffc900000bfc98 R15: ffff8880087b2bc0 [ 97.526699][ T11] FS: 0000000000000000(0000) GS:ffff888035e00000(0000) knlGS:0000000000000000 [ 97.527253][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 97.527605][ T11] CR2: 00007fb9333f3270 CR3: 000000001a534002 CR4: 00000000001706f0 [ 97.528043][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 97.528479][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 97.528916][ T11] Call Trace: [ 97.529103][ T11] [ 97.529264][ T11] ? __warn (kernel/panic.c:677) [ 97.529541][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 97.529893][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 97.530255][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 97.530569][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 97.530865][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 97.531120][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 97.531435][ T11] ? desc_read (./arch/x86/include/asm/atomic64_64.h:20 ./include/linux/atomic/atomic-arch-fallback.h:2615 ./include/linux/atomic/atomic-long.h:79 ./include/linux/atomic/atomic-instrumented.h:3196 kernel/printk/printk_ringbuffer.c:534) [ 97.531754][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 97.532083][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 97.532407][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 97.532738][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 97.533044][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 97.533382][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 97.533710][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 97.533982][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 97.534262][ T11] process_one_work (kernel/workqueue.c:2638) [ 97.534536][ T11] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 97.534791][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 97.535096][ T11] ? assign_work (kernel/workqueue.c:1101) [ 97.535343][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 97.535623][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 97.535973][ T11] kthread (kernel/kthread.c:388) [ 97.536250][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 97.536544][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 97.536836][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 97.537151][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 97.540831][ T11] ------------[ cut here ]------------ | [ 97.541203][ T11] sysfs group 'bridge' not found for kobject 'br2' | [ 97.541625][ T11] WARNING: CPU: 3 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 97.542216][ T11] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel [ 97.543338][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 97.544121][ T11] Workqueue: netns cleanup_net [ 97.544427][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 97.544817][ T11] Code: 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 45 48 8b 33 48 c7 c7 a0 a7 9c 8c e8 60 65 5e ff 90 <0f> 0b 90 90 48 83 c4 08 5b 5d 41 5c c3 cc cc cc cc e8 e9 c7 da ff All code ======== 0: 89 d9 mov %ebx,%ecx 2: 49 8b 14 24 mov (%r12),%rdx 6: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax d: fc ff df 10: 48 c1 e9 03 shr $0x3,%rcx 14: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) 18: 75 45 jne 0x5f 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 a7 9c 8c mov $0xffffffff8c9ca7a0,%rdi 24: e8 60 65 5e ff call 0xffffffffff5e6589 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 48 83 c4 08 add $0x8,%rsp 32: 5b pop %rbx 33: 5d pop %rbp 34: 41 5c pop %r12 36: c3 ret 37: cc int3 38: cc int3 39: cc int3 3a: cc int3 3b: e8 e9 c7 da ff call 0xffffffffffdac829 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 48 83 c4 08 add $0x8,%rsp 8: 5b pop %rbx 9: 5d pop %rbp a: 41 5c pop %r12 c: c3 ret d: cc int3 e: cc int3 f: cc int3 10: cc int3 11: e8 e9 c7 da ff call 0xffffffffffdac7ff [ 97.545834][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 97.546161][ T11] RAX: 0000000000000000 RBX: ffffffff8cdbe220 RCX: ffffffff89d1056f [ 97.546577][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 97.547127][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 97.547650][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff8880080fa628 [ 97.548265][ T11] R13: ffff8880080fadf8 R14: ffffc900000bfc98 R15: ffff8880080fabc0 [ 97.548857][ T11] FS: 0000000000000000(0000) GS:ffff888035e00000(0000) knlGS:0000000000000000 [ 97.549445][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 97.549841][ T11] CR2: 00007fb9333f3270 CR3: 000000001a534002 CR4: 00000000001706f0 [ 97.550358][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 97.550890][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 97.551513][ T11] Call Trace: [ 97.551719][ T11] [ 97.551960][ T11] ? __warn (kernel/panic.c:677) [ 97.552193][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 97.552452][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 97.552779][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 97.553099][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 97.553353][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 97.553681][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 97.554018][ T11] ? desc_read (./arch/x86/include/asm/atomic64_64.h:20 ./include/linux/atomic/atomic-arch-fallback.h:2615 ./include/linux/atomic/atomic-long.h:79 ./include/linux/atomic/atomic-instrumented.h:3196 kernel/printk/printk_ringbuffer.c:534) [ 97.554367][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 97.554674][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 97.555001][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 97.555285][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 97.555530][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 97.555843][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 97.556175][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 97.556508][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 97.556862][ T11] process_one_work (kernel/workqueue.c:2638) [ 97.557181][ T11] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 97.557536][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 97.557871][ T11] ? assign_work (kernel/workqueue.c:1101) [ 97.558157][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 97.558498][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 97.558772][ T11] kthread (kernel/kthread.c:388) [ 97.559038][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 97.559330][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 97.559600][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 97.559849][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 97.771271][ T11] ------------[ cut here ]------------ | [ 97.771592][ T11] sysfs group 'bridge' not found for kobject 'br1' | [ 97.771986][ T11] WARNING: CPU: 2 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 97.772474][ T11] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel [ 97.773437][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 97.774090][ T11] Workqueue: netns cleanup_net [ 97.774380][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 97.774691][ T11] Code: 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 45 48 8b 33 48 c7 c7 a0 a7 9c 8c e8 60 65 5e ff 90 <0f> 0b 90 90 48 83 c4 08 5b 5d 41 5c c3 cc cc cc cc e8 e9 c7 da ff All code ======== 0: 89 d9 mov %ebx,%ecx 2: 49 8b 14 24 mov (%r12),%rdx 6: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax d: fc ff df 10: 48 c1 e9 03 shr $0x3,%rcx 14: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) 18: 75 45 jne 0x5f 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 a7 9c 8c mov $0xffffffff8c9ca7a0,%rdi 24: e8 60 65 5e ff call 0xffffffffff5e6589 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 48 83 c4 08 add $0x8,%rsp 32: 5b pop %rbx 33: 5d pop %rbp 34: 41 5c pop %r12 36: c3 ret 37: cc int3 38: cc int3 39: cc int3 3a: cc int3 3b: e8 e9 c7 da ff call 0xffffffffffdac829 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 48 83 c4 08 add $0x8,%rsp 8: 5b pop %rbx 9: 5d pop %rbp a: 41 5c pop %r12 c: c3 ret d: cc int3 e: cc int3 f: cc int3 10: cc int3 11: e8 e9 c7 da ff call 0xffffffffffdac7ff [ 97.775773][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 97.776171][ T11] RAX: 0000000000000000 RBX: ffffffff8cdbe220 RCX: ffffffff89d1056f [ 97.776658][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 97.777138][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 97.777617][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff888008772628 [ 97.778087][ T11] R13: ffff888008772df8 R14: ffffc900000bfc98 R15: ffff888008772bc0 [ 97.778599][ T11] FS: 0000000000000000(0000) GS:ffff888035a00000(0000) knlGS:0000000000000000 [ 97.779104][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 97.779451][ T11] CR2: 00007f31894107f0 CR3: 000000001a534004 CR4: 00000000001706f0 [ 97.779889][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 97.780316][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 97.780743][ T11] Call Trace: [ 97.780929][ T11] [ 97.781103][ T11] ? __warn (kernel/panic.c:677) [ 97.781385][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 97.781683][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 97.782005][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 97.782322][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 97.782553][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 97.782811][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 97.783155][ T11] ? desc_read (./arch/x86/include/asm/atomic64_64.h:20 ./include/linux/atomic/atomic-arch-fallback.h:2615 ./include/linux/atomic/atomic-long.h:79 ./include/linux/atomic/atomic-instrumented.h:3196 kernel/printk/printk_ringbuffer.c:534) [ 97.783422][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 97.783749][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 97.784047][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 97.784388][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 97.784628][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 97.784896][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 97.785185][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 97.785458][ T11] process_one_work (kernel/workqueue.c:2638) [ 97.785724][ T11] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 97.785971][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 97.786263][ T11] ? assign_work (kernel/workqueue.c:1101) [ 97.786518][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 97.786774][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 97.787051][ T11] kthread (kernel/kthread.c:388) [ 97.787270][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 97.787519][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 97.787754][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 97.788008][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 97.796998][ T11] ------------[ cut here ]------------ | [ 97.797313][ T11] sysfs group 'bridge' not found for kobject 'br2' | [ 97.797775][ T11] WARNING: CPU: 2 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 97.798706][ T11] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel [ 97.799626][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 97.800326][ T11] Workqueue: netns cleanup_net [ 97.800595][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 97.800972][ T11] Code: 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 45 48 8b 33 48 c7 c7 a0 a7 9c 8c e8 60 65 5e ff 90 <0f> 0b 90 90 48 83 c4 08 5b 5d 41 5c c3 cc cc cc cc e8 e9 c7 da ff All code ======== 0: 89 d9 mov %ebx,%ecx 2: 49 8b 14 24 mov (%r12),%rdx 6: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax d: fc ff df 10: 48 c1 e9 03 shr $0x3,%rcx 14: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) 18: 75 45 jne 0x5f 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 a7 9c 8c mov $0xffffffff8c9ca7a0,%rdi 24: e8 60 65 5e ff call 0xffffffffff5e6589 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 48 83 c4 08 add $0x8,%rsp 32: 5b pop %rbx 33: 5d pop %rbp 34: 41 5c pop %r12 36: c3 ret 37: cc int3 38: cc int3 39: cc int3 3a: cc int3 3b: e8 e9 c7 da ff call 0xffffffffffdac829 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 48 83 c4 08 add $0x8,%rsp 8: 5b pop %rbx 9: 5d pop %rbp a: 41 5c pop %r12 c: c3 ret d: cc int3 e: cc int3 f: cc int3 10: cc int3 11: e8 e9 c7 da ff call 0xffffffffffdac7ff [ 97.802048][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 97.802381][ T11] RAX: 0000000000000000 RBX: ffffffff8cdbe220 RCX: ffffffff89d1056f [ 97.802801][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 97.803267][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 97.803691][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff88800aa5a628 [ 97.804160][ T11] R13: ffff88800aa5adf8 R14: ffffc900000bfc98 R15: ffff88800aa5abc0 [ 97.804592][ T11] FS: 0000000000000000(0000) GS:ffff888035a00000(0000) knlGS:0000000000000000 [ 97.805115][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 97.805489][ T11] CR2: 0000562619143048 CR3: 000000001a534004 CR4: 00000000001706f0 [ 97.806061][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 97.806593][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 97.807158][ T11] Call Trace: [ 97.807381][ T11] [ 97.807582][ T11] ? __warn (kernel/panic.c:677) [ 97.807802][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 97.808103][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 97.808385][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 97.808633][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 97.808875][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 97.809178][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 97.809457][ T11] ? desc_read (./arch/x86/include/asm/atomic64_64.h:20 ./include/linux/atomic/atomic-arch-fallback.h:2615 ./include/linux/atomic/atomic-long.h:79 ./include/linux/atomic/atomic-instrumented.h:3196 kernel/printk/printk_ringbuffer.c:534) [ 97.809697][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 97.810021][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 97.810274][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 97.810558][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 97.810796][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 97.811108][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 97.811407][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 97.811745][ T11] process_one_work (kernel/workqueue.c:2638) [ 97.812027][ T11] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 97.812343][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 97.812665][ T11] ? assign_work (kernel/workqueue.c:1101) [ 97.812951][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 97.813272][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 97.813564][ T11] kthread (kernel/kthread.c:388) [ 97.813855][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 97.814178][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 97.814448][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 97.814743][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 123.569579][ T11] ------------[ cut here ]------------ | [ 123.569894][ T11] sysfs group 'bridge' not found for kobject 'br1' | [ 123.570771][ T11] WARNING: CPU: 0 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 123.571357][ T11] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel [ 123.572413][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 123.573155][ T11] Workqueue: netns cleanup_net [ 123.573540][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 123.573970][ T11] Code: 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 45 48 8b 33 48 c7 c7 a0 a7 9c 8c e8 60 65 5e ff 90 <0f> 0b 90 90 48 83 c4 08 5b 5d 41 5c c3 cc cc cc cc e8 e9 c7 da ff All code ======== 0: 89 d9 mov %ebx,%ecx 2: 49 8b 14 24 mov (%r12),%rdx 6: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax d: fc ff df 10: 48 c1 e9 03 shr $0x3,%rcx 14: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) 18: 75 45 jne 0x5f 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 a7 9c 8c mov $0xffffffff8c9ca7a0,%rdi 24: e8 60 65 5e ff call 0xffffffffff5e6589 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 48 83 c4 08 add $0x8,%rsp 32: 5b pop %rbx 33: 5d pop %rbp 34: 41 5c pop %r12 36: c3 ret 37: cc int3 38: cc int3 39: cc int3 3a: cc int3 3b: e8 e9 c7 da ff call 0xffffffffffdac829 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 48 83 c4 08 add $0x8,%rsp 8: 5b pop %rbx 9: 5d pop %rbp a: 41 5c pop %r12 c: c3 ret d: cc int3 e: cc int3 f: cc int3 10: cc int3 11: e8 e9 c7 da ff call 0xffffffffffdac7ff [ 123.575088][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 123.575411][ T11] RAX: 0000000000000000 RBX: ffffffff8cdbe220 RCX: ffffffff89d1056f [ 123.575828][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 123.576369][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 123.576864][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff88800aea2628 [ 123.577331][ T11] R13: ffff88800aea2df8 R14: ffffc900000bfc98 R15: ffff88800aea2bc0 [ 123.577752][ T11] FS: 0000000000000000(0000) GS:ffff888035200000(0000) knlGS:0000000000000000 [ 123.578278][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 123.578725][ T11] CR2: 000000000049cf40 CR3: 000000001a534005 CR4: 00000000001706f0 [ 123.579189][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 123.579635][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 123.580108][ T11] Call Trace: [ 123.580331][ T11] [ 123.580524][ T11] ? __warn (kernel/panic.c:677) [ 123.580776][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 123.581068][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 123.581377][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 123.581654][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 123.581888][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 123.582144][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 123.582413][ T11] ? desc_read (./arch/x86/include/asm/atomic64_64.h:20 ./include/linux/atomic/atomic-arch-fallback.h:2615 ./include/linux/atomic/atomic-long.h:79 ./include/linux/atomic/atomic-instrumented.h:3196 kernel/printk/printk_ringbuffer.c:534) [ 123.582649][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 123.582935][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 123.583187][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 123.583468][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 123.583709][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 123.584001][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 123.584278][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 123.584576][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 123.584924][ T11] process_one_work (kernel/workqueue.c:2638) [ 123.585191][ T11] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 123.585471][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 123.585761][ T11] ? assign_work (kernel/workqueue.c:1101) [ 123.586013][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 123.586268][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 123.586542][ T11] kthread (kernel/kthread.c:388) [ 123.586761][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 123.587020][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 123.587258][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 123.587545][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 123.590808][ T11] ------------[ cut here ]------------ | [ 123.591145][ T11] sysfs group 'bridge' not found for kobject 'br2' | [ 123.591554][ T11] WARNING: CPU: 0 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 123.592406][ T11] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel [ 123.593269][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 123.593963][ T11] Workqueue: netns cleanup_net [ 123.594291][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 123.594633][ T11] Code: 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 45 48 8b 33 48 c7 c7 a0 a7 9c 8c e8 60 65 5e ff 90 <0f> 0b 90 90 48 83 c4 08 5b 5d 41 5c c3 cc cc cc cc e8 e9 c7 da ff All code ======== 0: 89 d9 mov %ebx,%ecx 2: 49 8b 14 24 mov (%r12),%rdx 6: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax d: fc ff df 10: 48 c1 e9 03 shr $0x3,%rcx 14: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) 18: 75 45 jne 0x5f 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 a7 9c 8c mov $0xffffffff8c9ca7a0,%rdi 24: e8 60 65 5e ff call 0xffffffffff5e6589 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 48 83 c4 08 add $0x8,%rsp 32: 5b pop %rbx 33: 5d pop %rbp 34: 41 5c pop %r12 36: c3 ret 37: cc int3 38: cc int3 39: cc int3 3a: cc int3 3b: e8 e9 c7 da ff call 0xffffffffffdac829 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 48 83 c4 08 add $0x8,%rsp 8: 5b pop %rbx 9: 5d pop %rbp a: 41 5c pop %r12 c: c3 ret d: cc int3 e: cc int3 f: cc int3 10: cc int3 11: e8 e9 c7 da ff call 0xffffffffffdac7ff [ 123.595683][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 123.596057][ T11] RAX: 0000000000000000 RBX: ffffffff8cdbe220 RCX: ffffffff89d1056f [ 123.596475][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 123.596935][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 123.597395][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff8880063fa628 [ 123.597850][ T11] R13: ffff8880063fadf8 R14: ffffc900000bfc98 R15: ffff8880063fabc0 [ 123.598300][ T11] FS: 0000000000000000(0000) GS:ffff888035200000(0000) knlGS:0000000000000000 [ 123.598811][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 123.599204][ T11] CR2: 000000000049cf40 CR3: 000000001a534005 CR4: 00000000001706f0 [ 123.599657][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 123.600105][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 123.600560][ T11] Call Trace: [ 123.600776][ T11] [ 123.600969][ T11] ? __warn (kernel/panic.c:677) [ 123.601214][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 123.601509][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 123.601831][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 123.602117][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 123.602373][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 123.602661][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 123.602973][ T11] ? desc_read (./arch/x86/include/asm/atomic64_64.h:20 ./include/linux/atomic/atomic-arch-fallback.h:2615 ./include/linux/atomic/atomic-long.h:79 ./include/linux/atomic/atomic-instrumented.h:3196 kernel/printk/printk_ringbuffer.c:534) [ 123.603243][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 123.603542][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 123.603827][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 123.604152][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 123.604439][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 123.604709][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 123.605013][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 123.605306][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 123.605613][ T11] process_one_work (kernel/workqueue.c:2638) [ 123.605916][ T11] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 123.606196][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 123.606525][ T11] ? assign_work (kernel/workqueue.c:1101) [ 123.606809][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 123.607073][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 123.607345][ T11] kthread (kernel/kthread.c:388) [ 123.607563][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 123.607812][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 123.608053][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 123.608302][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 123.611450][ T11] ------------[ cut here ]------------ | [ 123.611773][ T11] sysfs group 'bridge' not found for kobject 'br3' | [ 123.612193][ T11] WARNING: CPU: 0 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 123.612705][ T11] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel [ 123.613633][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 123.614340][ T11] Workqueue: netns cleanup_net [ 123.614636][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 123.614986][ T11] Code: 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 45 48 8b 33 48 c7 c7 a0 a7 9c 8c e8 60 65 5e ff 90 <0f> 0b 90 90 48 83 c4 08 5b 5d 41 5c c3 cc cc cc cc e8 e9 c7 da ff All code ======== 0: 89 d9 mov %ebx,%ecx 2: 49 8b 14 24 mov (%r12),%rdx 6: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax d: fc ff df 10: 48 c1 e9 03 shr $0x3,%rcx 14: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) 18: 75 45 jne 0x5f 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 a7 9c 8c mov $0xffffffff8c9ca7a0,%rdi 24: e8 60 65 5e ff call 0xffffffffff5e6589 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 48 83 c4 08 add $0x8,%rsp 32: 5b pop %rbx 33: 5d pop %rbp 34: 41 5c pop %r12 36: c3 ret 37: cc int3 38: cc int3 39: cc int3 3a: cc int3 3b: e8 e9 c7 da ff call 0xffffffffffdac829 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 48 83 c4 08 add $0x8,%rsp 8: 5b pop %rbx 9: 5d pop %rbp a: 41 5c pop %r12 c: c3 ret d: cc int3 e: cc int3 f: cc int3 10: cc int3 11: e8 e9 c7 da ff call 0xffffffffffdac7ff [ 123.616064][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 123.616432][ T11] RAX: 0000000000000000 RBX: ffffffff8cdbe220 RCX: ffffffff89d1056f [ 123.616895][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 123.617348][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 123.617879][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff888004572628 [ 123.618356][ T11] R13: ffff888004572df8 R14: ffffc900000bfc98 R15: ffff888004572bc0 [ 123.618815][ T11] FS: 0000000000000000(0000) GS:ffff888035200000(0000) knlGS:0000000000000000 [ 123.619312][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 123.619696][ T11] CR2: 000000000049cf40 CR3: 000000001a534005 CR4: 00000000001706f0 [ 123.620165][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 123.620686][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 123.621145][ T11] Call Trace: [ 123.621362][ T11] [ 123.621522][ T11] ? __warn (kernel/panic.c:677) [ 123.621782][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 123.622080][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 123.622375][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 123.622662][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 123.622948][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 123.623237][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 123.623532][ T11] ? desc_read (./arch/x86/include/asm/atomic64_64.h:20 ./include/linux/atomic/atomic-arch-fallback.h:2615 ./include/linux/atomic/atomic-long.h:79 ./include/linux/atomic/atomic-instrumented.h:3196 kernel/printk/printk_ringbuffer.c:534) [ 123.623812][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 123.624143][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 123.624438][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 123.624738][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 123.625019][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 123.625309][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 123.625607][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 123.625885][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 123.626177][ T11] process_one_work (kernel/workqueue.c:2638) [ 123.626467][ T11] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 123.626762][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 123.627089][ T11] ? assign_work (kernel/workqueue.c:1101) [ 123.627360][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 123.627616][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 123.627890][ T11] kthread (kernel/kthread.c:388) [ 123.628116][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 123.628364][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 123.628600][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 123.628847][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 124.047533][ T11] ------------[ cut here ]------------ | [ 124.047850][ T11] sysfs group 'bridge' not found for kobject 'br1' | [ 124.048269][ T11] WARNING: CPU: 2 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 124.048815][ T11] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel [ 124.049781][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 124.050512][ T11] Workqueue: netns cleanup_net [ 124.050806][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 124.051156][ T11] Code: 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 45 48 8b 33 48 c7 c7 a0 a7 9c 8c e8 60 65 5e ff 90 <0f> 0b 90 90 48 83 c4 08 5b 5d 41 5c c3 cc cc cc cc e8 e9 c7 da ff All code ======== 0: 89 d9 mov %ebx,%ecx 2: 49 8b 14 24 mov (%r12),%rdx 6: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax d: fc ff df 10: 48 c1 e9 03 shr $0x3,%rcx 14: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) 18: 75 45 jne 0x5f 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 a7 9c 8c mov $0xffffffff8c9ca7a0,%rdi 24: e8 60 65 5e ff call 0xffffffffff5e6589 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 48 83 c4 08 add $0x8,%rsp 32: 5b pop %rbx 33: 5d pop %rbp 34: 41 5c pop %r12 36: c3 ret 37: cc int3 38: cc int3 39: cc int3 3a: cc int3 3b: e8 e9 c7 da ff call 0xffffffffffdac829 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 48 83 c4 08 add $0x8,%rsp 8: 5b pop %rbx 9: 5d pop %rbp a: 41 5c pop %r12 c: c3 ret d: cc int3 e: cc int3 f: cc int3 10: cc int3 11: e8 e9 c7 da ff call 0xffffffffffdac7ff [ 124.052318][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 124.052700][ T11] RAX: 0000000000000000 RBX: ffffffff8cdbe220 RCX: ffffffff89d1056f [ 124.053200][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 124.053682][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 124.054204][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff888009a12628 [ 124.054690][ T11] R13: ffff888009a12df8 R14: ffffc900000bfc98 R15: ffff888009a12bc0 [ 124.055199][ T11] FS: 0000000000000000(0000) GS:ffff888035a00000(0000) knlGS:0000000000000000 [ 124.055731][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 124.056139][ T11] CR2: 00007faaff243000 CR3: 000000001a534002 CR4: 00000000001706f0 [ 124.056587][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 124.057010][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 124.057426][ T11] Call Trace: [ 124.057615][ T11] [ 124.057805][ T11] ? __warn (kernel/panic.c:677) [ 124.058050][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 124.058383][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 124.058702][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 124.059004][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 124.059286][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 124.059605][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 124.059888][ T11] ? desc_read (./arch/x86/include/asm/atomic64_64.h:20 ./include/linux/atomic/atomic-arch-fallback.h:2615 ./include/linux/atomic/atomic-long.h:79 ./include/linux/atomic/atomic-instrumented.h:3196 kernel/printk/printk_ringbuffer.c:534) [ 124.060156][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 124.060434][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 124.060681][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 124.060973][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 124.061212][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 124.061479][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 124.061747][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 124.062058][ T11] process_one_work (kernel/workqueue.c:2638) [ 124.062336][ T11] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 124.062576][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 124.062861][ T11] ? assign_work (kernel/workqueue.c:1101) [ 124.063115][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 124.063370][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 124.063642][ T11] kthread (kernel/kthread.c:388) [ 124.063860][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 124.064113][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 124.064360][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 124.064607][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 124.067890][ T11] ------------[ cut here ]------------ | [ 124.068186][ T11] sysfs group 'bridge' not found for kobject 'br2' | [ 124.068559][ T11] WARNING: CPU: 2 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 124.069053][ T11] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel [ 124.069926][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 124.070676][ T11] Workqueue: netns cleanup_net [ 124.070955][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 124.071294][ T11] Code: 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 45 48 8b 33 48 c7 c7 a0 a7 9c 8c e8 60 65 5e ff 90 <0f> 0b 90 90 48 83 c4 08 5b 5d 41 5c c3 cc cc cc cc e8 e9 c7 da ff All code ======== 0: 89 d9 mov %ebx,%ecx 2: 49 8b 14 24 mov (%r12),%rdx 6: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax d: fc ff df 10: 48 c1 e9 03 shr $0x3,%rcx 14: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) 18: 75 45 jne 0x5f 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 a7 9c 8c mov $0xffffffff8c9ca7a0,%rdi 24: e8 60 65 5e ff call 0xffffffffff5e6589 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 48 83 c4 08 add $0x8,%rsp 32: 5b pop %rbx 33: 5d pop %rbp 34: 41 5c pop %r12 36: c3 ret 37: cc int3 38: cc int3 39: cc int3 3a: cc int3 3b: e8 e9 c7 da ff call 0xffffffffffdac829 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 48 83 c4 08 add $0x8,%rsp 8: 5b pop %rbx 9: 5d pop %rbp a: 41 5c pop %r12 c: c3 ret d: cc int3 e: cc int3 f: cc int3 10: cc int3 11: e8 e9 c7 da ff call 0xffffffffffdac7ff [ 124.072396][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 124.072766][ T11] RAX: 0000000000000000 RBX: ffffffff8cdbe220 RCX: ffffffff89d1056f [ 124.073226][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 124.073730][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 124.074202][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff88800b15a628 [ 124.074637][ T11] R13: ffff88800b15adf8 R14: ffffc900000bfc98 R15: ffff88800b15abc0 [ 124.075076][ T11] FS: 0000000000000000(0000) GS:ffff888035a00000(0000) knlGS:0000000000000000 [ 124.075576][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 124.075932][ T11] CR2: 00007faaff243000 CR3: 000000001a534002 CR4: 00000000001706f0 [ 124.076352][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 124.076766][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 124.077190][ T11] Call Trace: [ 124.077366][ T11] [ 124.077524][ T11] ? __warn (kernel/panic.c:677) [ 124.077746][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 124.078010][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 124.078301][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 124.078549][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 124.078795][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 124.079152][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 124.079467][ T11] ? desc_read (./arch/x86/include/asm/atomic64_64.h:20 ./include/linux/atomic/atomic-arch-fallback.h:2615 ./include/linux/atomic/atomic-long.h:79 ./include/linux/atomic/atomic-instrumented.h:3196 kernel/printk/printk_ringbuffer.c:534) [ 124.079749][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 124.080058][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 124.080367][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 124.080673][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 124.080939][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 124.081249][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 124.081506][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 124.081819][ T11] process_one_work (kernel/workqueue.c:2638) [ 124.082112][ T11] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 124.082373][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 124.082696][ T11] ? assign_work (kernel/workqueue.c:1101) [ 124.082971][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 124.083246][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 124.083545][ T11] kthread (kernel/kthread.c:388) [ 124.083781][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 124.084086][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 124.084376][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 124.084672][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 124.087929][ T11] ------------[ cut here ]------------ | [ 124.088226][ T11] sysfs group 'bridge' not found for kobject 'br3' | [ 124.088614][ T11] WARNING: CPU: 2 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 124.089142][ T11] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel [ 124.090064][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 124.090784][ T11] Workqueue: netns cleanup_net [ 124.091052][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 124.091412][ T11] Code: 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 45 48 8b 33 48 c7 c7 a0 a7 9c 8c e8 60 65 5e ff 90 <0f> 0b 90 90 48 83 c4 08 5b 5d 41 5c c3 cc cc cc cc e8 e9 c7 da ff All code ======== 0: 89 d9 mov %ebx,%ecx 2: 49 8b 14 24 mov (%r12),%rdx 6: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax d: fc ff df 10: 48 c1 e9 03 shr $0x3,%rcx 14: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) 18: 75 45 jne 0x5f 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 a7 9c 8c mov $0xffffffff8c9ca7a0,%rdi 24: e8 60 65 5e ff call 0xffffffffff5e6589 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 48 83 c4 08 add $0x8,%rsp 32: 5b pop %rbx 33: 5d pop %rbp 34: 41 5c pop %r12 36: c3 ret 37: cc int3 38: cc int3 39: cc int3 3a: cc int3 3b: e8 e9 c7 da ff call 0xffffffffffdac829 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 48 83 c4 08 add $0x8,%rsp 8: 5b pop %rbx 9: 5d pop %rbp a: 41 5c pop %r12 c: c3 ret d: cc int3 e: cc int3 f: cc int3 10: cc int3 11: e8 e9 c7 da ff call 0xffffffffffdac7ff [ 124.092535][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 124.092914][ T11] RAX: 0000000000000000 RBX: ffffffff8cdbe220 RCX: ffffffff89d1056f [ 124.093386][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 124.093861][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 124.094339][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff88800b602628 [ 124.094778][ T11] R13: ffff88800b602df8 R14: ffffc900000bfc98 R15: ffff88800b602bc0 [ 124.095281][ T11] FS: 0000000000000000(0000) GS:ffff888035a00000(0000) knlGS:0000000000000000 [ 124.095790][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 124.096209][ T11] CR2: 00007faaff243000 CR3: 000000001a534002 CR4: 00000000001706f0 [ 124.096671][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 124.097152][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 124.097604][ T11] Call Trace: [ 124.097821][ T11] [ 124.098007][ T11] ? __warn (kernel/panic.c:677) [ 124.098258][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 124.098554][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 124.098897][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 124.099460][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 124.099696][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 124.099987][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 124.100298][ T11] ? desc_read (./arch/x86/include/asm/atomic64_64.h:20 ./include/linux/atomic/atomic-arch-fallback.h:2615 ./include/linux/atomic/atomic-long.h:79 ./include/linux/atomic/atomic-instrumented.h:3196 kernel/printk/printk_ringbuffer.c:534) [ 124.100587][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 124.100873][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 124.101145][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 124.101440][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 124.101711][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 124.101986][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 124.102267][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 124.102594][ T11] process_one_work (kernel/workqueue.c:2638) [ 124.102939][ T11] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228) [ 124.103217][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 124.103549][ T11] ? assign_work (kernel/workqueue.c:1101) [ 124.103793][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 124.104066][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 124.104383][ T11] kthread (kernel/kthread.c:388) [ 124.104649][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 124.104944][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 124.105213][ T11] ? __pfx_kthread (kernel/kthread.c:341) Finger prints: dump_stack_lvl:print_report:kasan_report:kobject_put refcount_warn_saturate:br_sysfs_delbr:br_dev_delete:br_net_exit_batch_rtnl sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net