====================================== | [ 33.852660][ T11] ================================================================== | [ 33.853102][ T11] BUG: KASAN: slab-use-after-free in kobject_put (lib/kobject.c:729) | [ 33.853488][ T11] Read of size 1 at addr ffff8880047a1bfc by task kworker/u8:0/11 | [ 33.853901][ T11] [ 33.854454][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 33.855098][ T11] Workqueue: netns cleanup_net [ 33.855362][ T11] Call Trace: [ 33.855548][ T11] [ 33.855707][ T11] dump_stack_lvl (lib/dump_stack.c:107) [ 33.855959][ T11] print_address_description.constprop.0 (mm/kasan/report.c:378) [ 33.856344][ T11] ? kobject_put (lib/kobject.c:729) [ 33.856596][ T11] print_report (mm/kasan/report.c:489) [ 33.856833][ 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) [ 33.857105][ T11] kasan_report (mm/kasan/report.c:603) [ 33.857339][ T11] ? kobject_put (lib/kobject.c:729) [ 33.857612][ T11] kobject_put (lib/kobject.c:729) [ 33.857841][ T11] br_sysfs_delbr (net/bridge/br_sysfs_br.c:1086) [ 33.858111][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 33.858401][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 33.858752][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 33.859013][ T11] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 33.859346][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 33.859635][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 33.859911][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 33.860188][ T11] process_one_work (kernel/workqueue.c:2638) [ 33.860465][ 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) [ 33.860745][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 33.861088][ T11] ? assign_work (kernel/workqueue.c:1101) [ 33.861370][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 33.861642][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 33.861941][ T11] kthread (kernel/kthread.c:388) [ 33.862220][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 33.862496][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 33.862753][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 33.863052][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 33.883892][ T11] ------------[ cut here ]------------ | [ 33.884224][ T11] refcount_t: underflow; use-after-free. | [ 33.884596][ T11] WARNING: CPU: 3 PID: 11 at lib/refcount.c:28 refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) | [ 33.885176][ T11] Modules linked in: act_gact cls_flower sch_ingress vxlan ip6_udp_tunnel udp_tunnel [ 33.886401][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 33.887179][ T11] Workqueue: netns cleanup_net [ 33.887441][ T11] RIP: 0010:refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 33.887836][ 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 42 a7 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 42 a7 mov $0xffffffffa7427a20,%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 [ 33.888871][ T11] RSP: 0018:ffffc900000bfb98 EFLAGS: 00010282 [ 33.889193][ T11] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffa471056f [ 33.889620][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 33.890037][ T11] RBP: 0000000000000003 R08: 0000000000000000 R09: fffff52000017f18 [ 33.890495][ T11] R10: ffffc900000bf8c7 R11: 205d313154202020 R12: ffff888008902000 [ 33.891022][ T11] R13: ffff888008902df8 R14: ffffc900000bfc98 R15: ffff888008902bc0 [ 33.891468][ T11] FS: 0000000000000000(0000) GS:ffff888035e00000(0000) knlGS:0000000000000000 [ 33.891946][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.892325][ T11] CR2: 00007f5bd3ba8000 CR3: 000000002ad34006 CR4: 00000000001706f0 [ 33.892794][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.893245][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.893732][ T11] Call Trace: [ 33.893927][ T11] [ 33.894111][ T11] ? __warn (kernel/panic.c:677) [ 33.894332][ T11] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 33.894667][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 33.894937][ T11] ? vprintk_emit (kernel/printk/printk.c:2313) [ 33.895228][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 33.895494][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 33.895782][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 33.896076][ 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) [ 33.896364][ T11] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 33.896733][ T11] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 33.897057][ T11] br_sysfs_delbr (net/bridge/br_sysfs_br.c:1086) [ 33.897326][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 33.897610][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 33.897931][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 33.898192][ T11] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 33.898526][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 33.898791][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 33.899042][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 33.899321][ T11] process_one_work (kernel/workqueue.c:2638) [ 33.899646][ 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) [ 33.899925][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 33.900249][ T11] ? assign_work (kernel/workqueue.c:1101) [ 33.900508][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 33.900761][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 33.901033][ T11] kthread (kernel/kthread.c:388) [ 33.901255][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 33.901514][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 33.901752][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 33.902000][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 33.905316][ T11] ------------[ cut here ]------------ | [ 33.905750][ T11] sysfs group 'bridge' not found for kobject 'br0' | [ 33.906263][ T11] WARNING: CPU: 0 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 33.906808][ T11] Modules linked in: act_gact cls_flower sch_ingress vxlan ip6_udp_tunnel udp_tunnel [ 33.907982][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 33.908679][ T11] Workqueue: netns cleanup_net [ 33.908991][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 33.909312][ 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 3c a7 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 3c a7 mov $0xffffffffa73ca7a0,%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 [ 33.910335][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 33.910679][ T11] RAX: 0000000000000000 RBX: ffffffffa77be220 RCX: ffffffffa471056f [ 33.911109][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 33.911556][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 33.912027][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff888008902628 [ 33.912565][ T11] R13: ffff888008902df8 R14: ffffc900000bfc98 R15: ffff888008902bc0 [ 33.913042][ T11] FS: 0000000000000000(0000) GS:ffff888035200000(0000) knlGS:0000000000000000 [ 33.913525][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.913877][ T11] CR2: 00007ffc02b1c8c8 CR3: 0000000006fc4005 CR4: 00000000001706f0 [ 33.914298][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.914729][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.915201][ T11] Call Trace: [ 33.915395][ T11] [ 33.915638][ T11] ? __warn (kernel/panic.c:677) [ 33.915864][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 33.916127][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 33.916456][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 33.916753][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 33.917014][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 33.917285][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 33.917602][ 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) [ 33.917868][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 33.918283][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 33.918615][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 33.918941][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 33.919213][ T11] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5719) [ 33.919561][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 33.919877][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 33.920184][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 33.920493][ T11] process_one_work (kernel/workqueue.c:2638) [ 33.920815][ 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) [ 33.921070][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 33.921410][ T11] ? assign_work (kernel/workqueue.c:1101) [ 33.921707][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 33.921992][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 33.922306][ T11] kthread (kernel/kthread.c:388) [ 33.922567][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 33.922840][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 33.923119][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 33.923405][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 34.084793][ T11] ------------[ cut here ]------------ | [ 34.085096][ T11] sysfs group 'bridge' not found for kobject 'br0' | [ 34.085475][ T11] WARNING: CPU: 0 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 34.085982][ T11] Modules linked in: act_gact cls_flower sch_ingress vxlan ip6_udp_tunnel udp_tunnel [ 34.087020][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 34.087713][ T11] Workqueue: netns cleanup_net [ 34.087982][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 34.088293][ 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 3c a7 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 3c a7 mov $0xffffffffa73ca7a0,%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 [ 34.089417][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 34.089791][ T11] RAX: 0000000000000000 RBX: ffffffffa77be220 RCX: ffffffffa471056f [ 34.090272][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 34.090783][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 34.091269][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff888008382628 [ 34.091737][ T11] R13: ffff888008382df8 R14: ffffc900000bfc98 R15: ffff888008382bc0 [ 34.092220][ T11] FS: 0000000000000000(0000) GS:ffff888035200000(0000) knlGS:0000000000000000 [ 34.092775][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.093206][ T11] CR2: 00007ffc02b1cf28 CR3: 0000000006fc4006 CR4: 00000000001706f0 [ 34.093672][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 34.094152][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 34.094646][ T11] Call Trace: [ 34.094846][ T11] [ 34.095069][ T11] ? __warn (kernel/panic.c:677) [ 34.095325][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 34.095598][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 34.095876][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 34.096122][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 34.096353][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 34.096614][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 34.096892][ 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) [ 34.097128][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 34.097476][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 34.097762][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 34.098101][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 34.098402][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 34.098705][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 34.099034][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 34.099325][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 34.099650][ T11] process_one_work (kernel/workqueue.c:2638) [ 34.099983][ 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) [ 34.100267][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 34.100636][ T11] ? assign_work (kernel/workqueue.c:1101) [ 34.100962][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 34.101283][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 34.101607][ T11] kthread (kernel/kthread.c:388) [ 34.101853][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 34.102155][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 34.102473][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 34.102800][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 51.941589][ T11] ------------[ cut here ]------------ | [ 51.941970][ T11] sysfs group 'bridge' not found for kobject 'br0' | [ 51.942402][ T11] WARNING: CPU: 3 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 51.942994][ T11] Modules linked in: act_gact cls_flower sch_ingress vxlan ip6_udp_tunnel udp_tunnel [ 51.944168][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 51.944869][ T11] Workqueue: netns cleanup_net [ 51.945178][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 51.945548][ 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 3c a7 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 3c a7 mov $0xffffffffa73ca7a0,%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 [ 51.946780][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 51.947150][ T11] RAX: 0000000000000000 RBX: ffffffffa77be220 RCX: ffffffffa471056f [ 51.947643][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 51.948124][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 51.948640][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff8880094ca628 [ 51.949075][ T11] R13: ffff8880094cadf8 R14: ffffc900000bfc98 R15: ffff8880094cabc0 [ 51.949493][ T11] FS: 0000000000000000(0000) GS:ffff888035e00000(0000) knlGS:0000000000000000 [ 51.949971][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.950324][ T11] CR2: 00007fb3766ef000 CR3: 0000000007f62003 CR4: 00000000001706f0 [ 51.950747][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 51.951224][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 51.951738][ T11] Call Trace: [ 51.951933][ T11] [ 51.952133][ T11] ? __warn (kernel/panic.c:677) [ 51.952401][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 51.952710][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 51.953024][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 51.953327][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 51.953584][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 51.953895][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 51.954226][ 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) [ 51.954479][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 51.954792][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 51.955103][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 51.955409][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 51.955694][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 51.956020][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 51.956300][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 51.956652][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 51.956974][ T11] process_one_work (kernel/workqueue.c:2638) [ 51.957262][ 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) [ 51.957552][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 51.957918][ T11] ? assign_work (kernel/workqueue.c:1101) [ 51.958217][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 51.958471][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 51.958752][ T11] kthread (kernel/kthread.c:388) [ 51.958973][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 51.959219][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 51.959461][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 51.959716][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 52.125737][ T11] ------------[ cut here ]------------ | [ 52.126035][ T11] sysfs group 'bridge' not found for kobject 'br0' | [ 52.126409][ T11] WARNING: CPU: 3 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 52.126902][ T11] Modules linked in: act_gact cls_flower sch_ingress vxlan ip6_udp_tunnel udp_tunnel [ 52.127926][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 52.128689][ T11] Workqueue: netns cleanup_net [ 52.128974][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 52.129375][ 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 3c a7 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 3c a7 mov $0xffffffffa73ca7a0,%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 [ 52.130531][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 52.130909][ T11] RAX: 0000000000000000 RBX: ffffffffa77be220 RCX: ffffffffa471056f [ 52.131416][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 52.131899][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 52.132382][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff888006f12628 [ 52.132822][ T11] R13: ffff888006f12df8 R14: ffffc900000bfc98 R15: ffff888006f12bc0 [ 52.133247][ T11] FS: 0000000000000000(0000) GS:ffff888035e00000(0000) knlGS:0000000000000000 [ 52.133765][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.134187][ T11] CR2: 00007fb3766ef000 CR3: 0000000007f62003 CR4: 00000000001706f0 [ 52.134685][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.135189][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.135653][ T11] Call Trace: [ 52.135869][ T11] [ 52.136059][ T11] ? __warn (kernel/panic.c:677) [ 52.136293][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 52.136598][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 52.136926][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 52.137212][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 52.137485][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 52.137776][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 52.138098][ 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) [ 52.138336][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 52.138618][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 52.138868][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 52.139148][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 52.139388][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 52.139644][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 52.139909][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 52.140163][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 52.140438][ T11] process_one_work (kernel/workqueue.c:2638) [ 52.140750][ 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) [ 52.141045][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 52.141369][ T11] ? assign_work (kernel/workqueue.c:1101) [ 52.141645][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 52.141976][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 52.142283][ T11] kthread (kernel/kthread.c:388) [ 52.142560][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 52.142849][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 52.143109][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 52.143380][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 67.781684][ T11] ------------[ cut here ]------------ | [ 67.782047][ T11] sysfs group 'bridge' not found for kobject 'br0' | [ 67.782448][ T11] WARNING: CPU: 3 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 67.783019][ T11] Modules linked in: cls_matchall act_gact cls_flower sch_ingress vxlan ip6_udp_tunnel udp_tunnel [ 67.784259][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 67.784963][ T11] Workqueue: netns cleanup_net [ 67.785226][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 67.785544][ 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 3c a7 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 3c a7 mov $0xffffffffa73ca7a0,%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 [ 67.786571][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 67.786966][ T11] RAX: 0000000000000000 RBX: ffffffffa77be220 RCX: ffffffffa471056f [ 67.787451][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 67.787972][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 67.788482][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff888005a52628 [ 67.788948][ T11] R13: ffff888005a52df8 R14: ffffc900000bfc98 R15: ffff888005a52bc0 [ 67.789451][ T11] FS: 0000000000000000(0000) GS:ffff888035e00000(0000) knlGS:0000000000000000 [ 67.789991][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.790406][ T11] CR2: 0000556fc1def0f0 CR3: 000000002ad34004 CR4: 00000000001706f0 [ 67.790903][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.791396][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.791899][ T11] Call Trace: [ 67.792114][ T11] [ 67.792294][ T11] ? __warn (kernel/panic.c:677) [ 67.792574][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 67.792896][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 67.793213][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 67.793507][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 67.793817][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 67.794103][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 67.794412][ 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) [ 67.794708][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 67.795049][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 67.795329][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 67.795615][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 67.795855][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 67.796107][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 67.796369][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 67.796633][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 67.796907][ T11] process_one_work (kernel/workqueue.c:2638) [ 67.797200][ 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) [ 67.797504][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 67.797841][ T11] ? assign_work (kernel/workqueue.c:1101) [ 67.798091][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 67.798346][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 67.798626][ T11] kthread (kernel/kthread.c:388) [ 67.798848][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 67.799094][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 67.799335][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 67.799588][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 67.966467][ T11] ------------[ cut here ]------------ | [ 67.966813][ T11] sysfs group 'bridge' not found for kobject 'br0' | [ 67.967208][ T11] WARNING: CPU: 1 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 67.967749][ T11] Modules linked in: cls_matchall act_gact cls_flower sch_ingress vxlan ip6_udp_tunnel udp_tunnel [ 67.968870][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 67.969524][ T11] Workqueue: netns cleanup_net [ 67.969785][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 67.970097][ 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 3c a7 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 3c a7 mov $0xffffffffa73ca7a0,%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 [ 67.971245][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 67.971622][ T11] RAX: 0000000000000000 RBX: ffffffffa77be220 RCX: ffffffffa471056f [ 67.972080][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 67.972527][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 67.973001][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff88800944a628 [ 67.973452][ T11] R13: ffff88800944adf8 R14: ffffc900000bfc98 R15: ffff88800944abc0 [ 67.973926][ T11] FS: 0000000000000000(0000) GS:ffff888035600000(0000) knlGS:0000000000000000 [ 67.974442][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.974824][ T11] CR2: 00007ffc02b1cf28 CR3: 0000000006fc4005 CR4: 00000000001706f0 [ 67.975273][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.975700][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.976120][ T11] Call Trace: [ 67.976300][ T11] [ 67.976462][ T11] ? __warn (kernel/panic.c:677) [ 67.976688][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 67.976954][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 67.977262][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 67.977544][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 67.977784][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 67.978036][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 67.978310][ 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) [ 67.978557][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 67.978840][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 67.979092][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 67.979378][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 67.979629][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 67.979882][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 67.980167][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 67.980445][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 67.980768][ T11] process_one_work (kernel/workqueue.c:2638) [ 67.981057][ 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) [ 67.981318][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 67.981644][ T11] ? assign_work (kernel/workqueue.c:1101) [ 67.981911][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 67.982224][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 67.982533][ T11] kthread (kernel/kthread.c:388) [ 67.982783][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 67.983083][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 67.983345][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 67.983625][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 84.423653][ T11] ------------[ cut here ]------------ | [ 84.424056][ T11] sysfs group 'bridge' not found for kobject 'br0' | [ 84.424485][ T11] WARNING: CPU: 3 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 84.425065][ T11] Modules linked in: cls_matchall act_gact cls_flower sch_ingress vxlan ip6_udp_tunnel udp_tunnel [ 84.426356][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 84.427017][ T11] Workqueue: netns cleanup_net [ 84.427320][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 84.427709][ 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 3c a7 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 3c a7 mov $0xffffffffa73ca7a0,%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 [ 84.428732][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 84.429055][ T11] RAX: 0000000000000000 RBX: ffffffffa77be220 RCX: ffffffffa471056f [ 84.429472][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 84.429897][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 84.430317][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff8880076b2628 [ 84.430807][ T11] R13: ffff8880076b2df8 R14: ffffc900000bfc98 R15: ffff8880076b2bc0 [ 84.431278][ T11] FS: 0000000000000000(0000) GS:ffff888035e00000(0000) knlGS:0000000000000000 [ 84.431856][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 84.432258][ T11] CR2: 00007fe328d8e0e0 CR3: 000000002ad34003 CR4: 00000000001706f0 [ 84.432743][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 84.433298][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 84.433779][ T11] Call Trace: [ 84.434018][ T11] [ 84.434204][ T11] ? __warn (kernel/panic.c:677) [ 84.434429][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 84.434696][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 84.434973][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 84.435215][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 84.435447][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 84.435708][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 84.435979][ 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) [ 84.436245][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 84.436577][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 84.436856][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 84.437139][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 84.437378][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 84.437635][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 84.437910][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 84.438157][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 84.438429][ T11] process_one_work (kernel/workqueue.c:2638) [ 84.438701][ 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) [ 84.438944][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 84.439232][ T11] ? assign_work (kernel/workqueue.c:1101) [ 84.439509][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 84.439842][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 84.440118][ T11] kthread (kernel/kthread.c:388) [ 84.440369][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 84.440660][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 84.440933][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 84.441211][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 84.597786][ T11] ------------[ cut here ]------------ | [ 84.598157][ T11] sysfs group 'bridge' not found for kobject 'br0' | [ 84.598583][ T11] WARNING: CPU: 3 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 84.599141][ T11] Modules linked in: cls_matchall act_gact cls_flower sch_ingress vxlan ip6_udp_tunnel udp_tunnel [ 84.600223][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 84.600874][ T11] Workqueue: netns cleanup_net [ 84.601135][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 84.601445][ 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 3c a7 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 3c a7 mov $0xffffffffa73ca7a0,%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 [ 84.602637][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 84.603063][ T11] RAX: 0000000000000000 RBX: ffffffffa77be220 RCX: ffffffffa471056f [ 84.603532][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 84.604042][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 84.604481][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff8880063da628 [ 84.604908][ T11] R13: ffff8880063dadf8 R14: ffffc900000bfc98 R15: ffff8880063dabc0 [ 84.605326][ T11] FS: 0000000000000000(0000) GS:ffff888035e00000(0000) knlGS:0000000000000000 [ 84.605803][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 84.606155][ T11] CR2: 00007f7909691000 CR3: 000000002ad34003 CR4: 00000000001706f0 [ 84.606580][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 84.607091][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 84.607541][ T11] Call Trace: [ 84.607727][ T11] [ 84.607884][ T11] ? __warn (kernel/panic.c:677) [ 84.608103][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 84.608365][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 84.608646][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 84.608891][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 84.609125][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 84.609376][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 84.609651][ 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) [ 84.609909][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 84.610278][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 84.610558][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 84.610863][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 84.611121][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 84.611442][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 84.611743][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 84.612033][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 84.612400][ T11] process_one_work (kernel/workqueue.c:2638) [ 84.612707][ 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) [ 84.612955][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 84.613239][ T11] ? assign_work (kernel/workqueue.c:1101) [ 84.613484][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 84.613745][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 84.614021][ T11] kthread (kernel/kthread.c:388) [ 84.614240][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 84.614489][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 84.614732][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 84.615077][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 124.074839][ T11] ------------[ cut here ]------------ | [ 124.075200][ T11] sysfs group 'bridge' not found for kobject 'br0' | [ 124.075613][ T11] WARNING: CPU: 1 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 124.076103][ T11] Modules linked in: cls_matchall act_gact cls_flower sch_ingress vxlan ip6_udp_tunnel udp_tunnel [ 124.077291][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 124.078016][ T11] Workqueue: netns cleanup_net [ 124.078309][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 124.078655][ 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 3c a7 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 3c a7 mov $0xffffffffa73ca7a0,%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 [ 124.079782][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 124.080131][ T11] RAX: 0000000000000000 RBX: ffffffffa77be220 RCX: ffffffffa471056f [ 124.080593][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 124.081074][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 124.081509][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff888006262628 [ 124.081987][ T11] R13: ffff888006262df8 R14: ffffc900000bfc98 R15: ffff888006262bc0 [ 124.082443][ T11] FS: 0000000000000000(0000) GS:ffff888035600000(0000) knlGS:0000000000000000 [ 124.082945][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 124.083296][ T11] CR2: 00007fda607dc270 CR3: 000000002ad34004 CR4: 00000000001706f0 [ 124.083729][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 124.084151][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 124.084578][ T11] Call Trace: [ 124.084758][ T11] [ 124.084916][ T11] ? __warn (kernel/panic.c:677) [ 124.085134][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 124.085392][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 124.085680][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 124.085927][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 124.086159][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 124.086408][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 124.086711][ 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) [ 124.086977][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 124.087290][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 124.087553][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 124.087839][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 124.088078][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 124.088335][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 124.088606][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 124.088858][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 124.089133][ T11] process_one_work (kernel/workqueue.c:2638) [ 124.089404][ 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) [ 124.089658][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 124.089946][ T11] ? assign_work (kernel/workqueue.c:1101) [ 124.090218][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 124.090513][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 124.090795][ T11] kthread (kernel/kthread.c:388) [ 124.091038][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 124.091317][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 124.091600][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 124.091890][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 124.259250][ T11] ------------[ cut here ]------------ | [ 124.259640][ T11] sysfs group 'bridge' not found for kobject 'br0' | [ 124.260014][ T11] WARNING: CPU: 3 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 124.260527][ T11] Modules linked in: cls_matchall act_gact cls_flower sch_ingress vxlan ip6_udp_tunnel udp_tunnel [ 124.261774][ T11] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 124.262522][ T11] Workqueue: netns cleanup_net [ 124.262847][ T11] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 124.263215][ 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 3c a7 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 3c a7 mov $0xffffffffa73ca7a0,%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 [ 124.264478][ T11] RSP: 0018:ffffc900000bfba0 EFLAGS: 00010282 [ 124.264860][ T11] RAX: 0000000000000000 RBX: ffffffffa77be220 RCX: ffffffffa471056f [ 124.265324][ T11] RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000001 [ 124.265747][ T11] RBP: 0000000000000000 R08: 0000000000000000 R09: fffff52000017f19 [ 124.266168][ T11] R10: ffffc900000bf8cf R11: 205d313154202020 R12: ffff8880080e2628 [ 124.266597][ T11] R13: ffff8880080e2df8 R14: ffffc900000bfc98 R15: ffff8880080e2bc0 [ 124.267014][ T11] FS: 0000000000000000(0000) GS:ffff888035e00000(0000) knlGS:0000000000000000 [ 124.267536][ T11] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 124.267934][ T11] CR2: 00007f745b847270 CR3: 000000002ad34005 CR4: 00000000001706f0 [ 124.268435][ T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 124.268924][ T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 124.269421][ T11] Call Trace: [ 124.269619][ T11] [ 124.269825][ T11] ? __warn (kernel/panic.c:677) [ 124.270084][ T11] ? console_trylock (kernel/printk/printk.c:2659 kernel/printk/printk.c:2654) [ 124.270382][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 124.270727][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 124.271013][ T11] ? handle_bug (arch/x86/kernel/traps.c:238) [ 124.271279][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 124.271589][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 124.271904][ 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) [ 124.272173][ T11] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 124.272511][ T11] br_dev_delete (net/bridge/br_if.c:396) [ 124.272799][ T11] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 124.273106][ T11] cleanup_net (net/core/net_namespace.c:628 (discriminator 2)) [ 124.273429][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 124.273713][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:581) [ 124.274045][ T11] ? lock_acquire (./include/trace/events/lock.h:24 kernel/locking/lockdep.c:5725) [ 124.274325][ T11] ? process_one_work (kernel/workqueue.c:2609) [ 124.274651][ T11] process_one_work (kernel/workqueue.c:2638) [ 124.274956][ 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) [ 124.275245][ T11] ? __pfx_process_one_work (kernel/workqueue.c:2542) [ 124.275568][ T11] ? assign_work (kernel/workqueue.c:1101) [ 124.275856][ T11] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 124.276179][ T11] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 124.276474][ T11] kthread (kernel/kthread.c:388) [ 124.276721][ T11] ? __pfx_kthread (kernel/kthread.c:341) [ 124.276996][ T11] ret_from_fork (arch/x86/kernel/process.c:153) [ 124.277296][ 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