====================================== | [ 391.901468] ------------[ cut here ]------------ | [ 391.901740] refcount_t: underflow; use-after-free. | [ 391.902053] WARNING: CPU: 0 PID: 11 at lib/refcount.c:28 refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) | [ 391.902521] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel drop_monitor act_gact cls_flower netdevsim psample act_mirred cls_u32 sch_ingress ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 391.903961] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 391.904570] Workqueue: netns cleanup_net [ 391.904828] RIP: 0010:refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 391.905127] Code: 0b 90 90 c3 cc cc cc cc 80 3d 69 d4 67 01 00 0f 85 75 ff ff ff c6 05 5c d4 67 01 01 90 48 c7 c7 b8 37 b3 87 e8 a1 26 b4 ff 90 <0f> 0b 90 90 c3 cc cc cc cc 80 3d 3c d4 67 01 00 0f 85 4a ff ff ff All code ======== 0: 0b 90 90 c3 cc cc or -0x33333c70(%rax),%edx 6: cc int3 7: cc int3 8: 80 3d 69 d4 67 01 00 cmpb $0x0,0x167d469(%rip) # 0x167d478 f: 0f 85 75 ff ff ff jne 0xffffffffffffff8a 15: c6 05 5c d4 67 01 01 movb $0x1,0x167d45c(%rip) # 0x167d478 1c: 90 nop 1d: 48 c7 c7 b8 37 b3 87 mov $0xffffffff87b337b8,%rdi 24: e8 a1 26 b4 ff call 0xffffffffffb426ca 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: c3 ret 2f: cc int3 30: cc int3 31: cc int3 32: cc int3 33: 80 3d 3c d4 67 01 00 cmpb $0x0,0x167d43c(%rip) # 0x167d476 3a: 0f 85 4a ff ff ff jne 0xffffffffffffff8a Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: c3 ret 5: cc int3 6: cc int3 7: cc int3 8: cc int3 9: 80 3d 3c d4 67 01 00 cmpb $0x0,0x167d43c(%rip) # 0x167d44c 10: 0f 85 4a ff ff ff jne 0xffffffffffffff60 [ 391.906254] RSP: 0018:ffffa969c0063d78 EFLAGS: 00010286 [ 391.906693] RAX: 0000000000000000 RBX: ffff9253c1266000 RCX: 00000000ffffdfff [ 391.907072] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 391.907499] RBP: ffff9253c1266610 R08: ffffffff87f78508 R09: 00000000ffffdfff [ 391.907892] R10: ffffffff87e98520 R11: ffffffff87f48520 R12: ffff9253c1266000 [ 391.908290] R13: ffffa969c0063e08 R14: ffff9253c1266b80 R15: ffff9253c26adc50 [ 391.908684] FS: 0000000000000000(0000) GS:ffff9253fec00000(0000) knlGS:0000000000000000 [ 391.909102] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 391.909449] CR2: 00007fd501f83000 CR3: 0000000008e60005 CR4: 0000000000770ef0 [ 391.909848] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 391.910238] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 391.910631] PKRU: 55555554 [ 391.910814] Call Trace: [ 391.910986] <TASK> [ 391.911131] ? __warn (kernel/panic.c:677) [ 391.911343] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 391.911615] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 391.911816] ? handle_bug (arch/x86/kernel/traps.c:238) [ 391.912033] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 391.912278] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 391.912529] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 391.912787] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 391.913053] br_sysfs_delbr (net/bridge/br_sysfs_br.c:1086) [ 391.913301] br_dev_delete (net/bridge/br_if.c:396) [ 391.913520] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 391.913771] cleanup_net (net/core/net_namespace.c:630) [ 391.913983] ? process_one_work (kernel/workqueue.c:2606) [ 391.914229] process_one_work (kernel/workqueue.c:2633) [ 391.914499] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 391.914731] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 391.914971] kthread (kernel/kthread.c:388) [ 391.915169] ? __pfx_kthread (kernel/kthread.c:341) [ 391.915437] ret_from_fork (arch/x86/kernel/process.c:147) [ 391.915653] ? __pfx_kthread (kernel/kthread.c:341) [ 391.915875] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 391.918613] ------------[ cut here ]------------ | [ 391.918883] sysfs group 'bridge' not found for kobject 'br1' | [ 391.919355] WARNING: CPU: 0 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 391.919814] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel drop_monitor act_gact cls_flower netdevsim psample act_mirred cls_u32 sch_ingress ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 391.921326] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 391.921925] Workqueue: netns cleanup_net [ 391.922162] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 391.922459] Code: 48 89 ef 5d 41 5c e9 7a ad ff ff 48 89 ef e8 12 9b ff ff eb d1 90 49 8b 14 24 48 8b 33 48 c7 c7 a0 cd b2 87 e8 ac 67 c5 ff 90 <0f> 0b 90 90 5b 5d 41 5c c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 All code ======== 0: 48 89 ef mov %rbp,%rdi 3: 5d pop %rbp 4: 41 5c pop %r12 6: e9 7a ad ff ff jmp 0xffffffffffffad85 b: 48 89 ef mov %rbp,%rdi e: e8 12 9b ff ff call 0xffffffffffff9b25 13: eb d1 jmp 0xffffffffffffffe6 15: 90 nop 16: 49 8b 14 24 mov (%r12),%rdx 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 cd b2 87 mov $0xffffffff87b2cda0,%rdi 24: e8 ac 67 c5 ff call 0xffffffffffc567d5 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 5b pop %rbx 2f: 5d pop %rbp 30: 41 5c pop %r12 32: c3 ret 33: cc int3 34: cc int3 35: cc int3 36: cc int3 37: 66 data16 38: 66 data16 39: 2e cs 3a: 0f .byte 0xf 3b: 1f (bad) 3c: 84 00 test %al,(%rax) ... Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 5b pop %rbx 5: 5d pop %rbp 6: 41 5c pop %r12 8: c3 ret 9: cc int3 a: cc int3 b: cc int3 c: cc int3 d: 66 data16 e: 66 data16 f: 2e cs 10: 0f .byte 0xf 11: 1f (bad) 12: 84 00 test %al,(%rax) ... [ 391.923430] RSP: 0018:ffffa969c0063d70 EFLAGS: 00010286 [ 391.923716] RAX: 0000000000000000 RBX: ffffffff877472c0 RCX: 00000000ffffdfff [ 391.924104] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 391.924515] RBP: 0000000000000000 R08: ffffffff87f78508 R09: 00000000ffffdfff [ 391.924906] R10: ffffffff87e98520 R11: ffffffff87f48520 R12: ffff9253c1266610 [ 391.925291] R13: ffffa969c0063e08 R14: ffff9253c1266b80 R15: ffff9253c26adc50 [ 391.925689] FS: 0000000000000000(0000) GS:ffff9253fec00000(0000) knlGS:0000000000000000 [ 391.926135] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 391.926472] CR2: 00007fd501f83000 CR3: 0000000008e60005 CR4: 0000000000770ef0 [ 391.926854] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 391.927246] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 391.927653] PKRU: 55555554 [ 391.927825] Call Trace: [ 391.927974] <TASK> [ 391.928119] ? __warn (kernel/panic.c:677) [ 391.928350] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 391.928588] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 391.928801] ? handle_bug (arch/x86/kernel/traps.c:238) [ 391.929013] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 391.929252] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 391.929508] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 391.929750] br_dev_delete (net/bridge/br_if.c:396) [ 391.929974] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 391.930235] cleanup_net (net/core/net_namespace.c:630) [ 391.930471] ? process_one_work (kernel/workqueue.c:2606) [ 391.930724] process_one_work (kernel/workqueue.c:2633) [ 391.930971] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 391.931207] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 391.931476] kthread (kernel/kthread.c:388) [ 391.931671] ? __pfx_kthread (kernel/kthread.c:341) [ 391.931901] ret_from_fork (arch/x86/kernel/process.c:147) [ 391.932125] ? __pfx_kthread (kernel/kthread.c:341) [ 391.932364] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 391.935106] ------------[ cut here ]------------ | [ 391.935377] sysfs group 'bridge' not found for kobject 'br2' | [ 391.935714] WARNING: CPU: 0 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 391.936161] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel drop_monitor act_gact cls_flower netdevsim psample act_mirred cls_u32 sch_ingress ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 391.937686] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 391.938299] Workqueue: netns cleanup_net [ 391.938551] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 391.938824] Code: 48 89 ef 5d 41 5c e9 7a ad ff ff 48 89 ef e8 12 9b ff ff eb d1 90 49 8b 14 24 48 8b 33 48 c7 c7 a0 cd b2 87 e8 ac 67 c5 ff 90 <0f> 0b 90 90 5b 5d 41 5c c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 All code ======== 0: 48 89 ef mov %rbp,%rdi 3: 5d pop %rbp 4: 41 5c pop %r12 6: e9 7a ad ff ff jmp 0xffffffffffffad85 b: 48 89 ef mov %rbp,%rdi e: e8 12 9b ff ff call 0xffffffffffff9b25 13: eb d1 jmp 0xffffffffffffffe6 15: 90 nop 16: 49 8b 14 24 mov (%r12),%rdx 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 cd b2 87 mov $0xffffffff87b2cda0,%rdi 24: e8 ac 67 c5 ff call 0xffffffffffc567d5 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 5b pop %rbx 2f: 5d pop %rbp 30: 41 5c pop %r12 32: c3 ret 33: cc int3 34: cc int3 35: cc int3 36: cc int3 37: 66 data16 38: 66 data16 39: 2e cs 3a: 0f .byte 0xf 3b: 1f (bad) 3c: 84 00 test %al,(%rax) ... Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 5b pop %rbx 5: 5d pop %rbp 6: 41 5c pop %r12 8: c3 ret 9: cc int3 a: cc int3 b: cc int3 c: cc int3 d: 66 data16 e: 66 data16 f: 2e cs 10: 0f .byte 0xf 11: 1f (bad) 12: 84 00 test %al,(%rax) ... [ 391.940002] RSP: 0018:ffffa969c0063d70 EFLAGS: 00010286 [ 391.940312] RAX: 0000000000000000 RBX: ffffffff877472c0 RCX: 00000000ffffdfff [ 391.940714] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 391.941117] RBP: 0000000000000000 R08: ffffffff87f78508 R09: 00000000ffffdfff [ 391.941509] R10: ffffffff87e98520 R11: ffffffff87f48520 R12: ffff9253c3ae6610 [ 391.941911] R13: ffffa969c0063e08 R14: ffff9253c3ae6b80 R15: ffff9253c26adc50 [ 391.942316] FS: 0000000000000000(0000) GS:ffff9253fec00000(0000) knlGS:0000000000000000 [ 391.942753] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 391.943061] CR2: 00007fd501f83000 CR3: 0000000008e60005 CR4: 0000000000770ef0 [ 391.943470] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 391.943862] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 391.944247] PKRU: 55555554 [ 391.944419] Call Trace: [ 391.944580] <TASK> [ 391.944730] ? __warn (kernel/panic.c:677) [ 391.944929] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 391.945166] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 391.945404] ? handle_bug (arch/x86/kernel/traps.c:238) [ 391.945622] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 391.945849] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 391.946091] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 391.946354] br_dev_delete (net/bridge/br_if.c:396) [ 391.946584] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 391.946840] cleanup_net (net/core/net_namespace.c:630) [ 391.947048] ? process_one_work (kernel/workqueue.c:2606) [ 391.947304] process_one_work (kernel/workqueue.c:2633) [ 391.947557] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 391.947779] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 391.948020] kthread (kernel/kthread.c:388) [ 391.948229] ? __pfx_kthread (kernel/kthread.c:341) [ 391.948479] ret_from_fork (arch/x86/kernel/process.c:147) [ 391.948697] ? __pfx_kthread (kernel/kthread.c:341) [ 391.948911] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 392.119487] ------------[ cut here ]------------ | [ 392.119775] sysfs group 'bridge' not found for kobject 'br1' | [ 392.120104] WARNING: CPU: 0 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 392.120548] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel drop_monitor act_gact cls_flower netdevsim psample act_mirred cls_u32 sch_ingress ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 392.122068] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 392.122668] Workqueue: netns cleanup_net [ 392.122915] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 392.123195] Code: 48 89 ef 5d 41 5c e9 7a ad ff ff 48 89 ef e8 12 9b ff ff eb d1 90 49 8b 14 24 48 8b 33 48 c7 c7 a0 cd b2 87 e8 ac 67 c5 ff 90 <0f> 0b 90 90 5b 5d 41 5c c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 All code ======== 0: 48 89 ef mov %rbp,%rdi 3: 5d pop %rbp 4: 41 5c pop %r12 6: e9 7a ad ff ff jmp 0xffffffffffffad85 b: 48 89 ef mov %rbp,%rdi e: e8 12 9b ff ff call 0xffffffffffff9b25 13: eb d1 jmp 0xffffffffffffffe6 15: 90 nop 16: 49 8b 14 24 mov (%r12),%rdx 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 cd b2 87 mov $0xffffffff87b2cda0,%rdi 24: e8 ac 67 c5 ff call 0xffffffffffc567d5 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 5b pop %rbx 2f: 5d pop %rbp 30: 41 5c pop %r12 32: c3 ret 33: cc int3 34: cc int3 35: cc int3 36: cc int3 37: 66 data16 38: 66 data16 39: 2e cs 3a: 0f .byte 0xf 3b: 1f (bad) 3c: 84 00 test %al,(%rax) ... Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 5b pop %rbx 5: 5d pop %rbp 6: 41 5c pop %r12 8: c3 ret 9: cc int3 a: cc int3 b: cc int3 c: cc int3 d: 66 data16 e: 66 data16 f: 2e cs 10: 0f .byte 0xf 11: 1f (bad) 12: 84 00 test %al,(%rax) ... [ 392.124205] RSP: 0018:ffffa969c0063d70 EFLAGS: 00010286 [ 392.124506] RAX: 0000000000000000 RBX: ffffffff877472c0 RCX: 00000000ffffdfff [ 392.124906] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 392.125306] RBP: 0000000000000000 R08: ffffffff87f78508 R09: 00000000ffffdfff [ 392.125702] R10: ffffffff87e98520 R11: ffffffff87f48520 R12: ffff9253c21f0610 [ 392.126084] R13: ffffa969c0063e08 R14: ffff9253c21f0b80 R15: ffff9253c26adc50 [ 392.126485] FS: 0000000000000000(0000) GS:ffff9253fec00000(0000) knlGS:0000000000000000 [ 392.126936] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 392.127275] CR2: 00007fd501f83000 CR3: 0000000008e60005 CR4: 0000000000770ef0 [ 392.127659] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 392.128058] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 392.128466] PKRU: 55555554 [ 392.128642] Call Trace: [ 392.128795] <TASK> [ 392.128948] ? __warn (kernel/panic.c:677) [ 392.129158] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 392.129416] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 392.129633] ? handle_bug (arch/x86/kernel/traps.c:238) [ 392.129852] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 392.130091] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 392.130358] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 392.130591] br_dev_delete (net/bridge/br_if.c:396) [ 392.130811] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 392.131077] cleanup_net (net/core/net_namespace.c:630) [ 392.131302] ? process_one_work (kernel/workqueue.c:2606) [ 392.131539] process_one_work (kernel/workqueue.c:2633) [ 392.131789] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 392.132022] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 392.132284] kthread (kernel/kthread.c:388) [ 392.132468] ? __pfx_kthread (kernel/kthread.c:341) [ 392.132692] ret_from_fork (arch/x86/kernel/process.c:147) [ 392.132916] ? __pfx_kthread (kernel/kthread.c:341) [ 392.133133] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 392.135864] ------------[ cut here ]------------ | [ 392.136117] kobject: '' (000000002c215412): is not initialized, yet kobject_put() is being called. | [ 392.136641] WARNING: CPU: 0 PID: 11 at lib/kobject.c:730 kobject_put (lib/kobject.c:730 (discriminator 1)) | [ 392.137038] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel drop_monitor act_gact cls_flower netdevsim psample act_mirred cls_u32 sch_ingress ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 392.138534] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 392.139144] Workqueue: netns cleanup_net [ 392.139395] RIP: 0010:kobject_put (lib/kobject.c:730 (discriminator 1)) [ 392.139641] Code: 89 ef e8 fe ad 4f ff 4d 85 e4 74 c0 4c 89 e5 f6 45 3c 01 75 a3 90 48 8b 75 00 48 89 ea 48 c7 c7 58 ce ba 87 e8 dc 42 2a ff 90 <0f> 0b 90 90 eb 88 c3 cc cc cc cc 5b be 03 00 00 00 5d 41 5c 41 5d All code ======== 0: 89 ef mov %ebp,%edi 2: e8 fe ad 4f ff call 0xffffffffff4fae05 7: 4d 85 e4 test %r12,%r12 a: 74 c0 je 0xffffffffffffffcc c: 4c 89 e5 mov %r12,%rbp f: f6 45 3c 01 testb $0x1,0x3c(%rbp) 13: 75 a3 jne 0xffffffffffffffb8 15: 90 nop 16: 48 8b 75 00 mov 0x0(%rbp),%rsi 1a: 48 89 ea mov %rbp,%rdx 1d: 48 c7 c7 58 ce ba 87 mov $0xffffffff87bace58,%rdi 24: e8 dc 42 2a ff call 0xffffffffff2a4305 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: eb 88 jmp 0xffffffffffffffb8 30: c3 ret 31: cc int3 32: cc int3 33: cc int3 34: cc int3 35: 5b pop %rbx 36: be 03 00 00 00 mov $0x3,%esi 3b: 5d pop %rbp 3c: 41 5c pop %r12 3e: 41 5d pop %r13 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: eb 88 jmp 0xffffffffffffff8e 6: c3 ret 7: cc int3 8: cc int3 9: cc int3 a: cc int3 b: 5b pop %rbx c: be 03 00 00 00 mov $0x3,%esi 11: 5d pop %rbp 12: 41 5c pop %r12 14: 41 5d pop %r13 [ 392.140614] RSP: 0018:ffffa969c0063d50 EFLAGS: 00010286 [ 392.140974] RAX: 0000000000000000 RBX: 00000000ffffffff RCX: 00000000ffffdfff [ 392.141452] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 392.141935] RBP: ffff9253c2aca340 R08: ffffffff87f78508 R09: 00000000ffffdfff [ 392.142394] R10: ffffffff87e98520 R11: ffffffff87f48520 R12: ffff9253c21f6000 [ 392.142869] R13: ffffa969c0063e08 R14: ffff9253c21f6b80 R15: ffff9253c26adc50 [ 392.143349] FS: 0000000000000000(0000) GS:ffff9253fec00000(0000) knlGS:0000000000000000 [ 392.143869] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 392.144241] CR2: 00007fd501f83000 CR3: 0000000008e60005 CR4: 0000000000770ef0 [ 392.144714] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 392.145190] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 392.145658] PKRU: 55555554 [ 392.145855] Call Trace: [ 392.146051] <TASK> [ 392.146222] ? __warn (kernel/panic.c:677) [ 392.146477] ? kobject_put (lib/kobject.c:730 (discriminator 1)) [ 392.146739] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 392.146991] ? handle_bug (arch/x86/kernel/traps.c:238) [ 392.147244] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 392.147526] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 392.147844] ? kobject_put (lib/kobject.c:730 (discriminator 1)) [ 392.148100] br_sysfs_delbr (net/bridge/br_sysfs_br.c:1086) [ 392.148367] br_dev_delete (net/bridge/br_if.c:396) [ 392.148638] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 392.148946] cleanup_net (net/core/net_namespace.c:630) [ 392.149213] ? process_one_work (kernel/workqueue.c:2606) [ 392.149506] process_one_work (kernel/workqueue.c:2633) [ 392.149782] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 392.150052] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 392.150362] kthread (kernel/kthread.c:388) [ 392.150619] ? __pfx_kthread (kernel/kthread.c:341) [ 392.150882] ret_from_fork (arch/x86/kernel/process.c:147) [ 392.151137] ? __pfx_kthread (kernel/kthread.c:341) [ 392.151422] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 392.154755] ------------[ cut here ]------------ | [ 392.155070] sysfs group 'bridge' not found for kobject 'br2' | [ 392.155487] WARNING: CPU: 0 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 392.156025] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel drop_monitor act_gact cls_flower netdevsim psample act_mirred cls_u32 sch_ingress ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 392.157839] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 392.158559] Workqueue: netns cleanup_net [ 392.158836] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 392.159179] Code: 48 89 ef 5d 41 5c e9 7a ad ff ff 48 89 ef e8 12 9b ff ff eb d1 90 49 8b 14 24 48 8b 33 48 c7 c7 a0 cd b2 87 e8 ac 67 c5 ff 90 <0f> 0b 90 90 5b 5d 41 5c c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 All code ======== 0: 48 89 ef mov %rbp,%rdi 3: 5d pop %rbp 4: 41 5c pop %r12 6: e9 7a ad ff ff jmp 0xffffffffffffad85 b: 48 89 ef mov %rbp,%rdi e: e8 12 9b ff ff call 0xffffffffffff9b25 13: eb d1 jmp 0xffffffffffffffe6 15: 90 nop 16: 49 8b 14 24 mov (%r12),%rdx 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 cd b2 87 mov $0xffffffff87b2cda0,%rdi 24: e8 ac 67 c5 ff call 0xffffffffffc567d5 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 5b pop %rbx 2f: 5d pop %rbp 30: 41 5c pop %r12 32: c3 ret 33: cc int3 34: cc int3 35: cc int3 36: cc int3 37: 66 data16 38: 66 data16 39: 2e cs 3a: 0f .byte 0xf 3b: 1f (bad) 3c: 84 00 test %al,(%rax) ... Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 5b pop %rbx 5: 5d pop %rbp 6: 41 5c pop %r12 8: c3 ret 9: cc int3 a: cc int3 b: cc int3 c: cc int3 d: 66 data16 e: 66 data16 f: 2e cs 10: 0f .byte 0xf 11: 1f (bad) 12: 84 00 test %al,(%rax) ... [ 392.160333] RSP: 0018:ffffa969c0063d70 EFLAGS: 00010286 [ 392.160685] RAX: 0000000000000000 RBX: ffffffff877472c0 RCX: 00000000ffffdfff [ 392.161156] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 392.161642] RBP: 0000000000000000 R08: ffffffff87f78508 R09: 00000000ffffdfff [ 392.162123] R10: ffffffff87e98520 R11: ffffffff87f48520 R12: ffff9253c21f6610 [ 392.162590] R13: ffffa969c0063e08 R14: ffff9253c21f6b80 R15: ffff9253c26adc50 [ 392.163062] FS: 0000000000000000(0000) GS:ffff9253fec00000(0000) knlGS:0000000000000000 [ 392.163600] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 392.163988] CR2: 00007fd501f83000 CR3: 0000000008e60005 CR4: 0000000000770ef0 [ 392.164455] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 392.164928] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 392.165405] PKRU: 55555554 [ 392.165628] Call Trace: [ 392.165814] <TASK> [ 392.165979] ? __warn (kernel/panic.c:677) [ 392.166226] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 392.166528] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 392.166804] ? handle_bug (arch/x86/kernel/traps.c:238) [ 392.167053] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 392.167318] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 392.167613] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 392.167912] br_dev_delete (net/bridge/br_if.c:396) [ 392.168195] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 392.168512] cleanup_net (net/core/net_namespace.c:630) [ 392.168768] ? process_one_work (kernel/workqueue.c:2606) [ 392.169065] process_one_work (kernel/workqueue.c:2633) [ 392.169330] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 392.169570] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 392.169877] kthread (kernel/kthread.c:388) [ 392.170082] ? __pfx_kthread (kernel/kthread.c:341) [ 392.170362] ret_from_fork (arch/x86/kernel/process.c:147) [ 392.170622] ? __pfx_kthread (kernel/kthread.c:341) [ 392.170860] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 396.141508] ------------[ cut here ]------------ | [ 396.141908] sysfs group 'bridge' not found for kobject 'br1' | [ 396.142293] WARNING: CPU: 3 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 396.142852] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel drop_monitor act_gact cls_flower netdevsim psample act_mirred cls_u32 sch_ingress ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 396.144833] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 396.146039] Workqueue: netns cleanup_net [ 396.146442] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 396.146903] Code: 48 89 ef 5d 41 5c e9 7a ad ff ff 48 89 ef e8 12 9b ff ff eb d1 90 49 8b 14 24 48 8b 33 48 c7 c7 a0 cd b2 87 e8 ac 67 c5 ff 90 <0f> 0b 90 90 5b 5d 41 5c c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 All code ======== 0: 48 89 ef mov %rbp,%rdi 3: 5d pop %rbp 4: 41 5c pop %r12 6: e9 7a ad ff ff jmp 0xffffffffffffad85 b: 48 89 ef mov %rbp,%rdi e: e8 12 9b ff ff call 0xffffffffffff9b25 13: eb d1 jmp 0xffffffffffffffe6 15: 90 nop 16: 49 8b 14 24 mov (%r12),%rdx 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 cd b2 87 mov $0xffffffff87b2cda0,%rdi 24: e8 ac 67 c5 ff call 0xffffffffffc567d5 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 5b pop %rbx 2f: 5d pop %rbp 30: 41 5c pop %r12 32: c3 ret 33: cc int3 34: cc int3 35: cc int3 36: cc int3 37: 66 data16 38: 66 data16 39: 2e cs 3a: 0f .byte 0xf 3b: 1f (bad) 3c: 84 00 test %al,(%rax) ... Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 5b pop %rbx 5: 5d pop %rbp 6: 41 5c pop %r12 8: c3 ret 9: cc int3 a: cc int3 b: cc int3 c: cc int3 d: 66 data16 e: 66 data16 f: 2e cs 10: 0f .byte 0xf 11: 1f (bad) 12: 84 00 test %al,(%rax) ... [ 396.148813] RSP: 0018:ffffa969c0063d70 EFLAGS: 00010286 [ 396.149332] RAX: 0000000000000000 RBX: ffffffff877472c0 RCX: 00000000ffffdfff [ 396.150040] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 396.150673] RBP: 0000000000000000 R08: ffffffff87f78508 R09: 00000000ffffdfff [ 396.151272] R10: ffffffff87e98520 R11: ffffffff87f48520 R12: ffff9253c5258610 [ 396.151985] R13: ffffa969c0063e08 R14: ffff9253c5258b80 R15: ffff9253c26ac550 [ 396.152590] FS: 0000000000000000(0000) GS:ffff9253fed80000(0000) knlGS:0000000000000000 [ 396.153245] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 396.153722] CR2: 00005584772171d0 CR3: 0000000008e60003 CR4: 0000000000770ef0 [ 396.154308] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 396.154848] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 396.155434] PKRU: 55555554 [ 396.155669] Call Trace: [ 396.155803] <TASK> [ 396.155921] ? __warn (kernel/panic.c:677) [ 396.156097] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 396.156346] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 396.156568] ? handle_bug (arch/x86/kernel/traps.c:238) [ 396.156754] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 396.156962] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 396.157185] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 396.157414] br_dev_delete (net/bridge/br_if.c:396) [ 396.157607] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 396.157837] cleanup_net (net/core/net_namespace.c:630) [ 396.158031] ? process_one_work (kernel/workqueue.c:2606) [ 396.158251] process_one_work (kernel/workqueue.c:2633) [ 396.158471] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 396.158670] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 396.158895] kthread (kernel/kthread.c:388) [ 396.159063] ? __pfx_kthread (kernel/kthread.c:341) [ 396.159268] ret_from_fork (arch/x86/kernel/process.c:147) [ 396.159461] ? __pfx_kthread (kernel/kthread.c:341) [ 396.159658] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 396.162375] ------------[ cut here ]------------ | [ 396.162680] sysfs group 'bridge' not found for kobject 'br2' | [ 396.163172] WARNING: CPU: 3 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 396.163692] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel drop_monitor act_gact cls_flower netdevsim psample act_mirred cls_u32 sch_ingress ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 396.166078] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 396.166878] Workqueue: netns cleanup_net [ 396.167194] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 396.167597] Code: 48 89 ef 5d 41 5c e9 7a ad ff ff 48 89 ef e8 12 9b ff ff eb d1 90 49 8b 14 24 48 8b 33 48 c7 c7 a0 cd b2 87 e8 ac 67 c5 ff 90 <0f> 0b 90 90 5b 5d 41 5c c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 All code ======== 0: 48 89 ef mov %rbp,%rdi 3: 5d pop %rbp 4: 41 5c pop %r12 6: e9 7a ad ff ff jmp 0xffffffffffffad85 b: 48 89 ef mov %rbp,%rdi e: e8 12 9b ff ff call 0xffffffffffff9b25 13: eb d1 jmp 0xffffffffffffffe6 15: 90 nop 16: 49 8b 14 24 mov (%r12),%rdx 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 cd b2 87 mov $0xffffffff87b2cda0,%rdi 24: e8 ac 67 c5 ff call 0xffffffffffc567d5 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 5b pop %rbx 2f: 5d pop %rbp 30: 41 5c pop %r12 32: c3 ret 33: cc int3 34: cc int3 35: cc int3 36: cc int3 37: 66 data16 38: 66 data16 39: 2e cs 3a: 0f .byte 0xf 3b: 1f (bad) 3c: 84 00 test %al,(%rax) ... Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 5b pop %rbx 5: 5d pop %rbp 6: 41 5c pop %r12 8: c3 ret 9: cc int3 a: cc int3 b: cc int3 c: cc int3 d: 66 data16 e: 66 data16 f: 2e cs 10: 0f .byte 0xf 11: 1f (bad) 12: 84 00 test %al,(%rax) ... [ 396.169605] RSP: 0018:ffffa969c0063d70 EFLAGS: 00010286 [ 396.170221] RAX: 0000000000000000 RBX: ffffffff877472c0 RCX: 00000000ffffdfff [ 396.171025] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 396.171804] RBP: 0000000000000000 R08: ffffffff87f78508 R09: 00000000ffffdfff [ 396.172624] R10: ffffffff87e98520 R11: ffffffff87f48520 R12: ffff9253c525a610 [ 396.173442] R13: ffffa969c0063e08 R14: ffff9253c525ab80 R15: ffff9253c26ac550 [ 396.174295] FS: 0000000000000000(0000) GS:ffff9253fed80000(0000) knlGS:0000000000000000 [ 396.175103] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 396.175435] CR2: 00005584772171d0 CR3: 0000000008e60003 CR4: 0000000000770ef0 [ 396.175916] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 396.176291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 396.176654] PKRU: 55555554 [ 396.176798] Call Trace: [ 396.176931] <TASK> [ 396.177128] ? __warn (kernel/panic.c:677) [ 396.177353] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 396.177699] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 396.177926] ? handle_bug (arch/x86/kernel/traps.c:238) [ 396.178114] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 396.178374] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 396.178696] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 396.179029] br_dev_delete (net/bridge/br_if.c:396) [ 396.179336] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 396.179684] cleanup_net (net/core/net_namespace.c:630) [ 396.179992] ? process_one_work (kernel/workqueue.c:2606) [ 396.180349] process_one_work (kernel/workqueue.c:2633) [ 396.180682] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 396.181006] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 396.181393] kthread (kernel/kthread.c:388) [ 396.181836] ? __pfx_kthread (kernel/kthread.c:341) [ 396.182209] ret_from_fork (arch/x86/kernel/process.c:147) [ 396.182572] ? __pfx_kthread (kernel/kthread.c:341) [ 396.182899] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 396.372489] ------------[ cut here ]------------ | [ 396.372754] sysfs group 'bridge' not found for kobject 'br1' | [ 396.373066] WARNING: CPU: 3 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 396.373511] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel drop_monitor act_gact cls_flower netdevsim psample act_mirred cls_u32 sch_ingress ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 396.374975] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 396.375552] Workqueue: netns cleanup_net [ 396.375763] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 396.376010] Code: 48 89 ef 5d 41 5c e9 7a ad ff ff 48 89 ef e8 12 9b ff ff eb d1 90 49 8b 14 24 48 8b 33 48 c7 c7 a0 cd b2 87 e8 ac 67 c5 ff 90 <0f> 0b 90 90 5b 5d 41 5c c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 All code ======== 0: 48 89 ef mov %rbp,%rdi 3: 5d pop %rbp 4: 41 5c pop %r12 6: e9 7a ad ff ff jmp 0xffffffffffffad85 b: 48 89 ef mov %rbp,%rdi e: e8 12 9b ff ff call 0xffffffffffff9b25 13: eb d1 jmp 0xffffffffffffffe6 15: 90 nop 16: 49 8b 14 24 mov (%r12),%rdx 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 cd b2 87 mov $0xffffffff87b2cda0,%rdi 24: e8 ac 67 c5 ff call 0xffffffffffc567d5 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 5b pop %rbx 2f: 5d pop %rbp 30: 41 5c pop %r12 32: c3 ret 33: cc int3 34: cc int3 35: cc int3 36: cc int3 37: 66 data16 38: 66 data16 39: 2e cs 3a: 0f .byte 0xf 3b: 1f (bad) 3c: 84 00 test %al,(%rax) ... Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 5b pop %rbx 5: 5d pop %rbp 6: 41 5c pop %r12 8: c3 ret 9: cc int3 a: cc int3 b: cc int3 c: cc int3 d: 66 data16 e: 66 data16 f: 2e cs 10: 0f .byte 0xf 11: 1f (bad) 12: 84 00 test %al,(%rax) ... [ 396.376963] RSP: 0018:ffffa969c0063d70 EFLAGS: 00010286 [ 396.377245] RAX: 0000000000000000 RBX: ffffffff877472c0 RCX: 00000000ffffdfff [ 396.377611] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 396.377981] RBP: 0000000000000000 R08: ffffffff87f78508 R09: 00000000ffffdfff [ 396.378359] R10: ffffffff87e98520 R11: ffffffff87f48520 R12: ffff9253c525c610 [ 396.378732] R13: ffffa969c0063e08 R14: ffff9253c525cb80 R15: ffff9253c2b98050 [ 396.379106] FS: 0000000000000000(0000) GS:ffff9253fed80000(0000) knlGS:0000000000000000 [ 396.379540] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 396.379864] CR2: 00005584772171d0 CR3: 0000000008e60003 CR4: 0000000000770ef0 [ 396.380383] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 396.380912] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 396.381458] PKRU: 55555554 [ 396.381666] Call Trace: [ 396.381815] <TASK> [ 396.381975] ? __warn (kernel/panic.c:677) [ 396.382232] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 396.382573] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 396.382868] ? handle_bug (arch/x86/kernel/traps.c:238) [ 396.383145] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 396.383454] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 396.383791] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 396.384117] br_dev_delete (net/bridge/br_if.c:396) [ 396.384416] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 396.384763] cleanup_net (net/core/net_namespace.c:630) [ 396.385053] ? process_one_work (kernel/workqueue.c:2606) [ 396.385390] process_one_work (kernel/workqueue.c:2633) [ 396.385711] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 396.386010] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 396.386359] kthread (kernel/kthread.c:388) [ 396.386611] ? __pfx_kthread (kernel/kthread.c:341) [ 396.386909] ret_from_fork (arch/x86/kernel/process.c:147) [ 396.387194] ? __pfx_kthread (kernel/kthread.c:341) [ 396.387502] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 396.390866] ------------[ cut here ]------------ | [ 396.391108] sysfs group 'bridge' not found for kobject 'br2' | [ 396.391445] WARNING: CPU: 3 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 396.391865] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel drop_monitor act_gact cls_flower netdevsim psample act_mirred cls_u32 sch_ingress ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 396.393311] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 396.393887] Workqueue: netns cleanup_net [ 396.394094] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 396.394355] Code: 48 89 ef 5d 41 5c e9 7a ad ff ff 48 89 ef e8 12 9b ff ff eb d1 90 49 8b 14 24 48 8b 33 48 c7 c7 a0 cd b2 87 e8 ac 67 c5 ff 90 <0f> 0b 90 90 5b 5d 41 5c c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 All code ======== 0: 48 89 ef mov %rbp,%rdi 3: 5d pop %rbp 4: 41 5c pop %r12 6: e9 7a ad ff ff jmp 0xffffffffffffad85 b: 48 89 ef mov %rbp,%rdi e: e8 12 9b ff ff call 0xffffffffffff9b25 13: eb d1 jmp 0xffffffffffffffe6 15: 90 nop 16: 49 8b 14 24 mov (%r12),%rdx 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 cd b2 87 mov $0xffffffff87b2cda0,%rdi 24: e8 ac 67 c5 ff call 0xffffffffffc567d5 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 5b pop %rbx 2f: 5d pop %rbp 30: 41 5c pop %r12 32: c3 ret 33: cc int3 34: cc int3 35: cc int3 36: cc int3 37: 66 data16 38: 66 data16 39: 2e cs 3a: 0f .byte 0xf 3b: 1f (bad) 3c: 84 00 test %al,(%rax) ... Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 5b pop %rbx 5: 5d pop %rbp 6: 41 5c pop %r12 8: c3 ret 9: cc int3 a: cc int3 b: cc int3 c: cc int3 d: 66 data16 e: 66 data16 f: 2e cs 10: 0f .byte 0xf 11: 1f (bad) 12: 84 00 test %al,(%rax) ... [ 396.395287] RSP: 0018:ffffa969c0063d70 EFLAGS: 00010286 [ 396.395579] RAX: 0000000000000000 RBX: ffffffff877472c0 RCX: 00000000ffffdfff [ 396.395938] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 396.396307] RBP: 0000000000000000 R08: ffffffff87f78508 R09: 00000000ffffdfff [ 396.396674] R10: ffffffff87e98520 R11: ffffffff87f48520 R12: ffff9253c1934610 [ 396.397032] R13: ffffa969c0063e08 R14: ffff9253c1934b80 R15: ffff9253c2b98050 [ 396.397405] FS: 0000000000000000(0000) GS:ffff9253fed80000(0000) knlGS:0000000000000000 [ 396.397814] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 396.398112] CR2: 00005584772171d0 CR3: 0000000008e60003 CR4: 0000000000770ef0 [ 396.398486] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 396.398847] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 396.399218] PKRU: 55555554 [ 396.399388] Call Trace: [ 396.399555] <TASK> [ 396.399693] ? __warn (kernel/panic.c:677) [ 396.399929] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 396.400250] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 396.400551] ? handle_bug (arch/x86/kernel/traps.c:238) [ 396.400829] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 396.401131] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 396.401478] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 396.401899] br_dev_delete (net/bridge/br_if.c:396) [ 396.402186] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 396.402543] cleanup_net (net/core/net_namespace.c:630) [ 396.402832] ? process_one_work (kernel/workqueue.c:2606) [ 396.403160] process_one_work (kernel/workqueue.c:2633) [ 396.403489] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 396.403787] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 396.404120] kthread (kernel/kthread.c:388) [ 396.404382] ? __pfx_kthread (kernel/kthread.c:341) [ 396.404678] ret_from_fork (arch/x86/kernel/process.c:147) [ 396.404964] ? __pfx_kthread (kernel/kthread.c:341) [ 396.405258] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 400.719527] ------------[ cut here ]------------ | [ 400.719984] sysfs group 'bridge' not found for kobject 'br1' | [ 400.720439] WARNING: CPU: 2 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 400.721175] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel drop_monitor act_gact cls_flower netdevsim psample act_mirred cls_u32 sch_ingress ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 400.723117] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 400.723856] Workqueue: netns cleanup_net [ 400.724245] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 400.724682] Code: 48 89 ef 5d 41 5c e9 7a ad ff ff 48 89 ef e8 12 9b ff ff eb d1 90 49 8b 14 24 48 8b 33 48 c7 c7 a0 cd b2 87 e8 ac 67 c5 ff 90 <0f> 0b 90 90 5b 5d 41 5c c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 All code ======== 0: 48 89 ef mov %rbp,%rdi 3: 5d pop %rbp 4: 41 5c pop %r12 6: e9 7a ad ff ff jmp 0xffffffffffffad85 b: 48 89 ef mov %rbp,%rdi e: e8 12 9b ff ff call 0xffffffffffff9b25 13: eb d1 jmp 0xffffffffffffffe6 15: 90 nop 16: 49 8b 14 24 mov (%r12),%rdx 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 cd b2 87 mov $0xffffffff87b2cda0,%rdi 24: e8 ac 67 c5 ff call 0xffffffffffc567d5 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 5b pop %rbx 2f: 5d pop %rbp 30: 41 5c pop %r12 32: c3 ret 33: cc int3 34: cc int3 35: cc int3 36: cc int3 37: 66 data16 38: 66 data16 39: 2e cs 3a: 0f .byte 0xf 3b: 1f (bad) 3c: 84 00 test %al,(%rax) ... Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 5b pop %rbx 5: 5d pop %rbp 6: 41 5c pop %r12 8: c3 ret 9: cc int3 a: cc int3 b: cc int3 c: cc int3 d: 66 data16 e: 66 data16 f: 2e cs 10: 0f .byte 0xf 11: 1f (bad) 12: 84 00 test %al,(%rax) ... [ 400.726170] RSP: 0018:ffffa969c0063d70 EFLAGS: 00010286 [ 400.726695] RAX: 0000000000000000 RBX: ffffffff877472c0 RCX: 00000000ffffdfff [ 400.727489] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 400.728276] RBP: 0000000000000000 R08: ffffffff87f78508 R09: 00000000ffffdfff [ 400.729064] R10: ffffffff87e98520 R11: ffffffff87f48520 R12: ffff9253c21f4610 [ 400.729855] R13: ffffa969c0063e08 R14: ffff9253c21f4b80 R15: ffff9253c287dc50 [ 400.730557] FS: 0000000000000000(0000) GS:ffff9253fed00000(0000) knlGS:0000000000000000 [ 400.731553] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 400.732192] CR2: 00007ffc3f9cab28 CR3: 0000000008e60003 CR4: 0000000000770ef0 [ 400.732933] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 400.733529] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 400.734183] PKRU: 55555554 [ 400.734479] Call Trace: [ 400.734682] <TASK> [ 400.734909] ? __warn (kernel/panic.c:677) [ 400.735213] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 400.735586] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 400.735981] ? handle_bug (arch/x86/kernel/traps.c:238) [ 400.736260] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 400.736740] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 400.737330] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 400.737655] br_dev_delete (net/bridge/br_if.c:396) [ 400.737861] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 400.738206] cleanup_net (net/core/net_namespace.c:630) [ 400.738503] ? process_one_work (kernel/workqueue.c:2606) [ 400.738782] process_one_work (kernel/workqueue.c:2633) [ 400.739073] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 400.739356] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 400.739666] kthread (kernel/kthread.c:388) [ 400.739897] ? __pfx_kthread (kernel/kthread.c:341) [ 400.740171] ret_from_fork (arch/x86/kernel/process.c:147) [ 400.740444] ? __pfx_kthread (kernel/kthread.c:341) [ 400.740716] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 400.744122] ------------[ cut here ]------------ | [ 400.744453] sysfs group 'bridge' not found for kobject 'br2' | [ 400.744970] WARNING: CPU: 2 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 400.745565] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel drop_monitor act_gact cls_flower netdevsim psample act_mirred cls_u32 sch_ingress ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 400.748019] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 400.749243] Workqueue: netns cleanup_net [ 400.749725] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 400.750345] Code: 48 89 ef 5d 41 5c e9 7a ad ff ff 48 89 ef e8 12 9b ff ff eb d1 90 49 8b 14 24 48 8b 33 48 c7 c7 a0 cd b2 87 e8 ac 67 c5 ff 90 <0f> 0b 90 90 5b 5d 41 5c c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 All code ======== 0: 48 89 ef mov %rbp,%rdi 3: 5d pop %rbp 4: 41 5c pop %r12 6: e9 7a ad ff ff jmp 0xffffffffffffad85 b: 48 89 ef mov %rbp,%rdi e: e8 12 9b ff ff call 0xffffffffffff9b25 13: eb d1 jmp 0xffffffffffffffe6 15: 90 nop 16: 49 8b 14 24 mov (%r12),%rdx 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 cd b2 87 mov $0xffffffff87b2cda0,%rdi 24: e8 ac 67 c5 ff call 0xffffffffffc567d5 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 5b pop %rbx 2f: 5d pop %rbp 30: 41 5c pop %r12 32: c3 ret 33: cc int3 34: cc int3 35: cc int3 36: cc int3 37: 66 data16 38: 66 data16 39: 2e cs 3a: 0f .byte 0xf 3b: 1f (bad) 3c: 84 00 test %al,(%rax) ... Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 5b pop %rbx 5: 5d pop %rbp 6: 41 5c pop %r12 8: c3 ret 9: cc int3 a: cc int3 b: cc int3 c: cc int3 d: 66 data16 e: 66 data16 f: 2e cs 10: 0f .byte 0xf 11: 1f (bad) 12: 84 00 test %al,(%rax) ... [ 400.752110] RSP: 0018:ffffa969c0063d70 EFLAGS: 00010286 [ 400.752614] RAX: 0000000000000000 RBX: ffffffff877472c0 RCX: 00000000ffffdfff [ 400.753207] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 400.753777] RBP: 0000000000000000 R08: ffffffff87f78508 R09: 00000000ffffdfff [ 400.754382] R10: ffffffff87e98520 R11: ffffffff87f48520 R12: ffff9253c1936610 [ 400.754974] R13: ffffa969c0063e08 R14: ffff9253c1936b80 R15: ffff9253c287dc50 [ 400.755601] FS: 0000000000000000(0000) GS:ffff9253fed00000(0000) knlGS:0000000000000000 [ 400.756292] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 400.756805] CR2: 00007ffc3f9cab28 CR3: 0000000008e60003 CR4: 0000000000770ef0 [ 400.757395] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 400.758100] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 400.758890] PKRU: 55555554 [ 400.759195] Call Trace: [ 400.759480] <TASK> [ 400.759707] ? __warn (kernel/panic.c:677) [ 400.759982] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 400.760205] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 400.760409] ? handle_bug (arch/x86/kernel/traps.c:238) [ 400.760692] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 400.760942] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 400.761167] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 400.761394] br_dev_delete (net/bridge/br_if.c:396) [ 400.761601] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 400.761912] cleanup_net (net/core/net_namespace.c:630) [ 400.762222] ? process_one_work (kernel/workqueue.c:2606) [ 400.762657] process_one_work (kernel/workqueue.c:2633) [ 400.762874] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 400.763113] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 400.763459] kthread (kernel/kthread.c:388) [ 400.763801] ? __pfx_kthread (kernel/kthread.c:341) [ 400.764201] ret_from_fork (arch/x86/kernel/process.c:147) [ 400.764561] ? __pfx_kthread (kernel/kthread.c:341) [ 400.764987] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 400.970463] ------------[ cut here ]------------ | [ 400.970956] sysfs group 'bridge' not found for kobject 'br1' | [ 400.971445] WARNING: CPU: 2 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 400.972176] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel drop_monitor act_gact cls_flower netdevsim psample act_mirred cls_u32 sch_ingress ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 400.973709] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 400.974314] Workqueue: netns cleanup_net [ 400.974522] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 400.974776] Code: 48 89 ef 5d 41 5c e9 7a ad ff ff 48 89 ef e8 12 9b ff ff eb d1 90 49 8b 14 24 48 8b 33 48 c7 c7 a0 cd b2 87 e8 ac 67 c5 ff 90 <0f> 0b 90 90 5b 5d 41 5c c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 All code ======== 0: 48 89 ef mov %rbp,%rdi 3: 5d pop %rbp 4: 41 5c pop %r12 6: e9 7a ad ff ff jmp 0xffffffffffffad85 b: 48 89 ef mov %rbp,%rdi e: e8 12 9b ff ff call 0xffffffffffff9b25 13: eb d1 jmp 0xffffffffffffffe6 15: 90 nop 16: 49 8b 14 24 mov (%r12),%rdx 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 cd b2 87 mov $0xffffffff87b2cda0,%rdi 24: e8 ac 67 c5 ff call 0xffffffffffc567d5 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 5b pop %rbx 2f: 5d pop %rbp 30: 41 5c pop %r12 32: c3 ret 33: cc int3 34: cc int3 35: cc int3 36: cc int3 37: 66 data16 38: 66 data16 39: 2e cs 3a: 0f .byte 0xf 3b: 1f (bad) 3c: 84 00 test %al,(%rax) ... Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 5b pop %rbx 5: 5d pop %rbp 6: 41 5c pop %r12 8: c3 ret 9: cc int3 a: cc int3 b: cc int3 c: cc int3 d: 66 data16 e: 66 data16 f: 2e cs 10: 0f .byte 0xf 11: 1f (bad) 12: 84 00 test %al,(%rax) ... [ 400.976030] RSP: 0018:ffffa969c0063d70 EFLAGS: 00010286 [ 400.976514] RAX: 0000000000000000 RBX: ffffffff877472c0 RCX: 00000000ffffdfff [ 400.977161] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 400.977800] RBP: 0000000000000000 R08: ffffffff87f78508 R09: 00000000ffffdfff [ 400.978404] R10: ffffffff87e98520 R11: ffffffff87f48520 R12: ffff9253c3ae2610 [ 400.979026] R13: ffffa969c0063e08 R14: ffff9253c3ae2b80 R15: ffff9253c2879750 [ 400.979660] FS: 0000000000000000(0000) GS:ffff9253fed00000(0000) knlGS:0000000000000000 [ 400.980322] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 400.980825] CR2: 00007ffc3f9cab28 CR3: 0000000008e60003 CR4: 0000000000770ef0 [ 400.981453] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 400.982007] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 400.982617] PKRU: 55555554 [ 400.982887] Call Trace: [ 400.983109] <TASK> [ 400.983270] ? __warn (kernel/panic.c:677) [ 400.983445] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 400.983663] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 400.983897] ? handle_bug (arch/x86/kernel/traps.c:238) [ 400.984146] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 400.984399] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 400.984667] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 400.984937] br_dev_delete (net/bridge/br_if.c:396) [ 400.985272] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 400.985543] cleanup_net (net/core/net_namespace.c:630) [ 400.985736] ? process_one_work (kernel/workqueue.c:2606) [ 400.985970] process_one_work (kernel/workqueue.c:2633) [ 400.986291] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 400.986675] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 400.986973] kthread (kernel/kthread.c:388) [ 400.987143] ? __pfx_kthread (kernel/kthread.c:341) [ 400.987488] ret_from_fork (arch/x86/kernel/process.c:147) [ 400.987826] ? __pfx_kthread (kernel/kthread.c:341) [ 400.988203] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 400.993755] ------------[ cut here ]------------ | [ 400.994032] sysfs group 'bridge' not found for kobject 'br2' | [ 400.994384] WARNING: CPU: 0 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 400.994838] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel drop_monitor act_gact cls_flower netdevsim psample act_mirred cls_u32 sch_ingress ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 400.996359] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 400.996962] Workqueue: netns cleanup_net [ 400.997201] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 400.997498] Code: 48 89 ef 5d 41 5c e9 7a ad ff ff 48 89 ef e8 12 9b ff ff eb d1 90 49 8b 14 24 48 8b 33 48 c7 c7 a0 cd b2 87 e8 ac 67 c5 ff 90 <0f> 0b 90 90 5b 5d 41 5c c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 All code ======== 0: 48 89 ef mov %rbp,%rdi 3: 5d pop %rbp 4: 41 5c pop %r12 6: e9 7a ad ff ff jmp 0xffffffffffffad85 b: 48 89 ef mov %rbp,%rdi e: e8 12 9b ff ff call 0xffffffffffff9b25 13: eb d1 jmp 0xffffffffffffffe6 15: 90 nop 16: 49 8b 14 24 mov (%r12),%rdx 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 cd b2 87 mov $0xffffffff87b2cda0,%rdi 24: e8 ac 67 c5 ff call 0xffffffffffc567d5 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 5b pop %rbx 2f: 5d pop %rbp 30: 41 5c pop %r12 32: c3 ret 33: cc int3 34: cc int3 35: cc int3 36: cc int3 37: 66 data16 38: 66 data16 39: 2e cs 3a: 0f .byte 0xf 3b: 1f (bad) 3c: 84 00 test %al,(%rax) ... Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 5b pop %rbx 5: 5d pop %rbp 6: 41 5c pop %r12 8: c3 ret 9: cc int3 a: cc int3 b: cc int3 c: cc int3 d: 66 data16 e: 66 data16 f: 2e cs 10: 0f .byte 0xf 11: 1f (bad) 12: 84 00 test %al,(%rax) ... [ 400.998486] RSP: 0018:ffffa969c0063d70 EFLAGS: 00010286 [ 400.998778] RAX: 0000000000000000 RBX: ffffffff877472c0 RCX: 00000000ffffdfff [ 400.999173] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 400.999593] RBP: 0000000000000000 R08: ffffffff87f78508 R09: 00000000ffffdfff [ 400.999976] R10: ffffffff87e98520 R11: ffffffff87f48520 R12: ffff9253c21f2610 [ 401.000374] R13: ffffa969c0063e08 R14: ffff9253c21f2b80 R15: ffff9253c2879750 [ 401.000781] FS: 0000000000000000(0000) GS:ffff9253fec00000(0000) knlGS:0000000000000000 [ 401.001224] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 401.001600] CR2: 00007fa351346270 CR3: 0000000005b40005 CR4: 0000000000770ef0 [ 401.002002] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 401.002396] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 401.002793] PKRU: 55555554 [ 401.002964] Call Trace: [ 401.003163] <TASK> [ 401.003309] ? __warn (kernel/panic.c:677) [ 401.003502] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 401.003765] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 401.003993] ? handle_bug (arch/x86/kernel/traps.c:238) [ 401.004216] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 401.004453] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 401.004697] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 401.004957] br_dev_delete (net/bridge/br_if.c:396) [ 401.005181] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 401.005467] cleanup_net (net/core/net_namespace.c:630) [ 401.005692] ? process_one_work (kernel/workqueue.c:2606) [ 401.005937] process_one_work (kernel/workqueue.c:2633) [ 401.006190] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 401.006438] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 401.006703] kthread (kernel/kthread.c:388) [ 401.006901] ? __pfx_kthread (kernel/kthread.c:341) [ 401.007110] ret_from_fork (arch/x86/kernel/process.c:147) [ 401.007341] ? __pfx_kthread (kernel/kthread.c:341) [ 401.007569] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 404.992514] ------------[ cut here ]------------ | [ 404.992808] sysfs group 'bridge' not found for kobject 'br1' | [ 404.993175] WARNING: CPU: 0 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 404.993644] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel drop_monitor act_gact cls_flower netdevsim psample act_mirred cls_u32 sch_ingress ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 404.995286] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 404.995930] Workqueue: netns cleanup_net [ 404.996185] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 404.996487] Code: 48 89 ef 5d 41 5c e9 7a ad ff ff 48 89 ef e8 12 9b ff ff eb d1 90 49 8b 14 24 48 8b 33 48 c7 c7 a0 cd b2 87 e8 ac 67 c5 ff 90 <0f> 0b 90 90 5b 5d 41 5c c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 All code ======== 0: 48 89 ef mov %rbp,%rdi 3: 5d pop %rbp 4: 41 5c pop %r12 6: e9 7a ad ff ff jmp 0xffffffffffffad85 b: 48 89 ef mov %rbp,%rdi e: e8 12 9b ff ff call 0xffffffffffff9b25 13: eb d1 jmp 0xffffffffffffffe6 15: 90 nop 16: 49 8b 14 24 mov (%r12),%rdx 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 cd b2 87 mov $0xffffffff87b2cda0,%rdi 24: e8 ac 67 c5 ff call 0xffffffffffc567d5 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 5b pop %rbx 2f: 5d pop %rbp 30: 41 5c pop %r12 32: c3 ret 33: cc int3 34: cc int3 35: cc int3 36: cc int3 37: 66 data16 38: 66 data16 39: 2e cs 3a: 0f .byte 0xf 3b: 1f (bad) 3c: 84 00 test %al,(%rax) ... Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 5b pop %rbx 5: 5d pop %rbp 6: 41 5c pop %r12 8: c3 ret 9: cc int3 a: cc int3 b: cc int3 c: cc int3 d: 66 data16 e: 66 data16 f: 2e cs 10: 0f .byte 0xf 11: 1f (bad) 12: 84 00 test %al,(%rax) ... [ 404.997536] RSP: 0018:ffffa969c0063d70 EFLAGS: 00010286 [ 404.997838] RAX: 0000000000000000 RBX: ffffffff877472c0 RCX: 00000000ffffdfff [ 404.998244] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 404.998648] RBP: 0000000000000000 R08: ffffffff87f78508 R09: 00000000ffffdfff [ 404.999034] R10: ffffffff87e98520 R11: ffffffff87f48520 R12: ffff9253c1266610 [ 404.999446] R13: ffffa969c0063e08 R14: ffff9253c1266b80 R15: ffff9253c2b9dc50 [ 404.999875] FS: 0000000000000000(0000) GS:ffff9253fec00000(0000) knlGS:0000000000000000 [ 405.000430] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 405.000766] CR2: 00007f77c5be9270 CR3: 0000000008e60005 CR4: 0000000000770ef0 [ 405.001194] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 405.001646] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 405.002031] PKRU: 55555554 [ 405.002222] Call Trace: [ 405.002364] <TASK> [ 405.002519] ? __warn (kernel/panic.c:677) [ 405.002697] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 405.002916] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 405.003112] ? handle_bug (arch/x86/kernel/traps.c:238) [ 405.003306] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 405.003508] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 405.003731] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 405.003950] br_dev_delete (net/bridge/br_if.c:396) [ 405.004142] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 405.004379] cleanup_net (net/core/net_namespace.c:630) [ 405.004582] ? process_one_work (kernel/workqueue.c:2606) [ 405.004827] process_one_work (kernel/workqueue.c:2633) [ 405.005039] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 405.005238] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 405.005468] kthread (kernel/kthread.c:388) [ 405.005657] ? __pfx_kthread (kernel/kthread.c:341) [ 405.005871] ret_from_fork (arch/x86/kernel/process.c:147) [ 405.006063] ? __pfx_kthread (kernel/kthread.c:341) [ 405.006258] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 405.008969] ------------[ cut here ]------------ | [ 405.009311] sysfs group 'bridge' not found for kobject 'br2' | [ 405.009658] WARNING: CPU: 0 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 405.010097] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel drop_monitor act_gact cls_flower netdevsim psample act_mirred cls_u32 sch_ingress ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 405.011667] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 405.012340] Workqueue: netns cleanup_net [ 405.012608] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 405.012908] Code: 48 89 ef 5d 41 5c e9 7a ad ff ff 48 89 ef e8 12 9b ff ff eb d1 90 49 8b 14 24 48 8b 33 48 c7 c7 a0 cd b2 87 e8 ac 67 c5 ff 90 <0f> 0b 90 90 5b 5d 41 5c c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 All code ======== 0: 48 89 ef mov %rbp,%rdi 3: 5d pop %rbp 4: 41 5c pop %r12 6: e9 7a ad ff ff jmp 0xffffffffffffad85 b: 48 89 ef mov %rbp,%rdi e: e8 12 9b ff ff call 0xffffffffffff9b25 13: eb d1 jmp 0xffffffffffffffe6 15: 90 nop 16: 49 8b 14 24 mov (%r12),%rdx 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 cd b2 87 mov $0xffffffff87b2cda0,%rdi 24: e8 ac 67 c5 ff call 0xffffffffffc567d5 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 5b pop %rbx 2f: 5d pop %rbp 30: 41 5c pop %r12 32: c3 ret 33: cc int3 34: cc int3 35: cc int3 36: cc int3 37: 66 data16 38: 66 data16 39: 2e cs 3a: 0f .byte 0xf 3b: 1f (bad) 3c: 84 00 test %al,(%rax) ... Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 5b pop %rbx 5: 5d pop %rbp 6: 41 5c pop %r12 8: c3 ret 9: cc int3 a: cc int3 b: cc int3 c: cc int3 d: 66 data16 e: 66 data16 f: 2e cs 10: 0f .byte 0xf 11: 1f (bad) 12: 84 00 test %al,(%rax) ... [ 405.013950] RSP: 0018:ffffa969c0063d70 EFLAGS: 00010286 [ 405.014272] RAX: 0000000000000000 RBX: ffffffff877472c0 RCX: 00000000ffffdfff [ 405.014669] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 405.015029] RBP: 0000000000000000 R08: ffffffff87f78508 R09: 00000000ffffdfff [ 405.015391] R10: ffffffff87e98520 R11: ffffffff87f48520 R12: ffff9253c1936610 [ 405.015800] R13: ffffa969c0063e08 R14: ffff9253c1936b80 R15: ffff9253c2b9dc50 [ 405.016226] FS: 0000000000000000(0000) GS:ffff9253fec00000(0000) knlGS:0000000000000000 [ 405.016706] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 405.017043] CR2: 00007f77c5be9270 CR3: 0000000008e60005 CR4: 0000000000770ef0 [ 405.017451] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 405.017826] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 405.018237] PKRU: 55555554 [ 405.018415] Call Trace: [ 405.018600] <TASK> [ 405.018753] ? __warn (kernel/panic.c:677) [ 405.018952] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 405.019226] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 405.019477] ? handle_bug (arch/x86/kernel/traps.c:238) [ 405.019705] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 405.019952] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 405.020188] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 405.020451] br_dev_delete (net/bridge/br_if.c:396) [ 405.020690] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 405.020959] cleanup_net (net/core/net_namespace.c:630) [ 405.021179] ? process_one_work (kernel/workqueue.c:2606) [ 405.021444] process_one_work (kernel/workqueue.c:2633) [ 405.021703] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 405.021963] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 405.022234] kthread (kernel/kthread.c:388) [ 405.022428] ? __pfx_kthread (kernel/kthread.c:341) [ 405.022666] ret_from_fork (arch/x86/kernel/process.c:147) [ 405.022908] ? __pfx_kthread (kernel/kthread.c:341) [ 405.023133] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 405.213485] ------------[ cut here ]------------ | [ 405.213754] sysfs group 'bridge' not found for kobject 'br1' | [ 405.214095] WARNING: CPU: 1 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 405.214567] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel drop_monitor act_gact cls_flower netdevsim psample act_mirred cls_u32 sch_ingress ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 405.216034] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 405.216629] Workqueue: netns cleanup_net [ 405.216844] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 405.217101] Code: 48 89 ef 5d 41 5c e9 7a ad ff ff 48 89 ef e8 12 9b ff ff eb d1 90 49 8b 14 24 48 8b 33 48 c7 c7 a0 cd b2 87 e8 ac 67 c5 ff 90 <0f> 0b 90 90 5b 5d 41 5c c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 All code ======== 0: 48 89 ef mov %rbp,%rdi 3: 5d pop %rbp 4: 41 5c pop %r12 6: e9 7a ad ff ff jmp 0xffffffffffffad85 b: 48 89 ef mov %rbp,%rdi e: e8 12 9b ff ff call 0xffffffffffff9b25 13: eb d1 jmp 0xffffffffffffffe6 15: 90 nop 16: 49 8b 14 24 mov (%r12),%rdx 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 cd b2 87 mov $0xffffffff87b2cda0,%rdi 24: e8 ac 67 c5 ff call 0xffffffffffc567d5 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 5b pop %rbx 2f: 5d pop %rbp 30: 41 5c pop %r12 32: c3 ret 33: cc int3 34: cc int3 35: cc int3 36: cc int3 37: 66 data16 38: 66 data16 39: 2e cs 3a: 0f .byte 0xf 3b: 1f (bad) 3c: 84 00 test %al,(%rax) ... Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 5b pop %rbx 5: 5d pop %rbp 6: 41 5c pop %r12 8: c3 ret 9: cc int3 a: cc int3 b: cc int3 c: cc int3 d: 66 data16 e: 66 data16 f: 2e cs 10: 0f .byte 0xf 11: 1f (bad) 12: 84 00 test %al,(%rax) ... [ 405.218075] RSP: 0018:ffffa969c0063d70 EFLAGS: 00010286 [ 405.218353] RAX: 0000000000000000 RBX: ffffffff877472c0 RCX: 00000000ffffdfff [ 405.218730] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 405.219090] RBP: 0000000000000000 R08: ffffffff87f78508 R09: 00000000ffffdfff [ 405.219457] R10: ffffffff87e98520 R11: ffffffff87f48520 R12: ffff9253c39f4610 [ 405.219833] R13: ffffa969c0063e08 R14: ffff9253c39f4b80 R15: ffff9253c2b98050 [ 405.220208] FS: 0000000000000000(0000) GS:ffff9253fec80000(0000) knlGS:0000000000000000 [ 405.220626] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 405.220924] CR2: 00007fd25a14c000 CR3: 0000000008e60001 CR4: 0000000000770ef0 [ 405.221301] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 405.221675] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 405.222034] PKRU: 55555554 [ 405.222180] Call Trace: [ 405.222320] <TASK> [ 405.222439] ? __warn (kernel/panic.c:677) [ 405.222629] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 405.222850] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 405.223061] ? handle_bug (arch/x86/kernel/traps.c:238) [ 405.223272] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 405.223478] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 405.223744] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 405.223963] br_dev_delete (net/bridge/br_if.c:396) [ 405.224155] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 405.224404] cleanup_net (net/core/net_namespace.c:630) [ 405.224612] ? process_one_work (kernel/workqueue.c:2606) [ 405.224846] process_one_work (kernel/workqueue.c:2633) [ 405.225072] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 405.225284] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 405.225524] kthread (kernel/kthread.c:388) [ 405.225703] ? __pfx_kthread (kernel/kthread.c:341) [ 405.225920] ret_from_fork (arch/x86/kernel/process.c:147) [ 405.226128] ? __pfx_kthread (kernel/kthread.c:341) [ 405.226338] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 405.229011] ------------[ cut here ]------------ | [ 405.229250] sysfs group 'bridge' not found for kobject 'br2' | [ 405.229563] WARNING: CPU: 1 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 405.229974] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel drop_monitor act_gact cls_flower netdevsim psample act_mirred cls_u32 sch_ingress ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 405.231454] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 405.232047] Workqueue: netns cleanup_net [ 405.232271] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 405.232536] Code: 48 89 ef 5d 41 5c e9 7a ad ff ff 48 89 ef e8 12 9b ff ff eb d1 90 49 8b 14 24 48 8b 33 48 c7 c7 a0 cd b2 87 e8 ac 67 c5 ff 90 <0f> 0b 90 90 5b 5d 41 5c c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 All code ======== 0: 48 89 ef mov %rbp,%rdi 3: 5d pop %rbp 4: 41 5c pop %r12 6: e9 7a ad ff ff jmp 0xffffffffffffad85 b: 48 89 ef mov %rbp,%rdi e: e8 12 9b ff ff call 0xffffffffffff9b25 13: eb d1 jmp 0xffffffffffffffe6 15: 90 nop 16: 49 8b 14 24 mov (%r12),%rdx 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 cd b2 87 mov $0xffffffff87b2cda0,%rdi 24: e8 ac 67 c5 ff call 0xffffffffffc567d5 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 5b pop %rbx 2f: 5d pop %rbp 30: 41 5c pop %r12 32: c3 ret 33: cc int3 34: cc int3 35: cc int3 36: cc int3 37: 66 data16 38: 66 data16 39: 2e cs 3a: 0f .byte 0xf 3b: 1f (bad) 3c: 84 00 test %al,(%rax) ... Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 5b pop %rbx 5: 5d pop %rbp 6: 41 5c pop %r12 8: c3 ret 9: cc int3 a: cc int3 b: cc int3 c: cc int3 d: 66 data16 e: 66 data16 f: 2e cs 10: 0f .byte 0xf 11: 1f (bad) 12: 84 00 test %al,(%rax) ... [ 405.233474] RSP: 0018:ffffa969c0063d70 EFLAGS: 00010286 [ 405.233766] RAX: 0000000000000000 RBX: ffffffff877472c0 RCX: 00000000ffffdfff [ 405.234150] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 405.234535] RBP: 0000000000000000 R08: ffffffff87f78508 R09: 00000000ffffdfff [ 405.234902] R10: ffffffff87e98520 R11: ffffffff87f48520 R12: ffff9253c39f6610 [ 405.235283] R13: ffffa969c0063e08 R14: ffff9253c39f6b80 R15: ffff9253c2b98050 [ 405.235650] FS: 0000000000000000(0000) GS:ffff9253fec80000(0000) knlGS:0000000000000000 [ 405.236088] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 405.236428] CR2: 00007fd25a14c000 CR3: 0000000008e60001 CR4: 0000000000770ef0 [ 405.236809] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 405.237187] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 405.237590] PKRU: 55555554 [ 405.237736] Call Trace: [ 405.237887] <TASK> [ 405.238013] ? __warn (kernel/panic.c:677) [ 405.238191] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 405.238444] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 405.238640] ? handle_bug (arch/x86/kernel/traps.c:238) [ 405.238835] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 405.239042] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 405.239280] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 405.239507] br_dev_delete (net/bridge/br_if.c:396) [ 405.239700] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 405.239941] cleanup_net (net/core/net_namespace.c:630) [ 405.240136] ? process_one_work (kernel/workqueue.c:2606) [ 405.240365] process_one_work (kernel/workqueue.c:2633) [ 405.240598] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 405.240817] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 405.241057] kthread (kernel/kthread.c:388) [ 405.241244] ? __pfx_kthread (kernel/kthread.c:341) [ 405.241480] ret_from_fork (arch/x86/kernel/process.c:147) [ 405.241693] ? __pfx_kthread (kernel/kthread.c:341) [ 405.241917] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 411.157456] ------------[ cut here ]------------ | [ 411.157938] sysfs group 'bridge' not found for kobject 'br1' | [ 411.158568] WARNING: CPU: 1 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 411.159360] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel drop_monitor act_gact cls_flower netdevsim psample act_mirred cls_u32 sch_ingress ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 411.162087] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 411.163216] Workqueue: netns cleanup_net [ 411.163563] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 411.163815] Code: 48 89 ef 5d 41 5c e9 7a ad ff ff 48 89 ef e8 12 9b ff ff eb d1 90 49 8b 14 24 48 8b 33 48 c7 c7 a0 cd b2 87 e8 ac 67 c5 ff 90 <0f> 0b 90 90 5b 5d 41 5c c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 All code ======== 0: 48 89 ef mov %rbp,%rdi 3: 5d pop %rbp 4: 41 5c pop %r12 6: e9 7a ad ff ff jmp 0xffffffffffffad85 b: 48 89 ef mov %rbp,%rdi e: e8 12 9b ff ff call 0xffffffffffff9b25 13: eb d1 jmp 0xffffffffffffffe6 15: 90 nop 16: 49 8b 14 24 mov (%r12),%rdx 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 cd b2 87 mov $0xffffffff87b2cda0,%rdi 24: e8 ac 67 c5 ff call 0xffffffffffc567d5 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 5b pop %rbx 2f: 5d pop %rbp 30: 41 5c pop %r12 32: c3 ret 33: cc int3 34: cc int3 35: cc int3 36: cc int3 37: 66 data16 38: 66 data16 39: 2e cs 3a: 0f .byte 0xf 3b: 1f (bad) 3c: 84 00 test %al,(%rax) ... Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 5b pop %rbx 5: 5d pop %rbp 6: 41 5c pop %r12 8: c3 ret 9: cc int3 a: cc int3 b: cc int3 c: cc int3 d: 66 data16 e: 66 data16 f: 2e cs 10: 0f .byte 0xf 11: 1f (bad) 12: 84 00 test %al,(%rax) ... [ 411.164838] RSP: 0018:ffffa969c0063d70 EFLAGS: 00010286 [ 411.165108] RAX: 0000000000000000 RBX: ffffffff877472c0 RCX: 00000000ffffdfff [ 411.165483] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 411.165846] RBP: 0000000000000000 R08: ffffffff87f78508 R09: 00000000ffffdfff [ 411.166218] R10: ffffffff87e98520 R11: ffffffff87f48520 R12: ffff9253c38d6610 [ 411.166586] R13: ffffa969c0063e08 R14: ffff9253c38d6b80 R15: ffff9253c3a61750 [ 411.166959] FS: 0000000000000000(0000) GS:ffff9253fec80000(0000) knlGS:0000000000000000 [ 411.167380] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 411.167686] CR2: 00007f35d831a0e0 CR3: 00000000038b6003 CR4: 0000000000770ef0 [ 411.168051] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 411.168422] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 411.168795] PKRU: 55555554 [ 411.168939] Call Trace: [ 411.169079] <TASK> [ 411.169201] ? __warn (kernel/panic.c:677) [ 411.169394] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 411.169620] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 411.169820] ? handle_bug (arch/x86/kernel/traps.c:238) [ 411.170013] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 411.170223] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 411.170461] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 411.170691] br_dev_delete (net/bridge/br_if.c:396) [ 411.170892] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 411.171130] cleanup_net (net/core/net_namespace.c:630) [ 411.171338] ? process_one_work (kernel/workqueue.c:2606) [ 411.171745] process_one_work (kernel/workqueue.c:2633) [ 411.171965] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 411.172167] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 411.172410] kthread (kernel/kthread.c:388) [ 411.172583] ? __pfx_kthread (kernel/kthread.c:341) [ 411.172784] ret_from_fork (arch/x86/kernel/process.c:147) [ 411.172978] ? __pfx_kthread (kernel/kthread.c:341) [ 411.173177] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 411.175752] ------------[ cut here ]------------ | [ 411.176033] kobject: '' (00000000f80df11d): is not initialized, yet kobject_put() is being called. | [ 411.176780] WARNING: CPU: 1 PID: 11 at lib/kobject.c:730 kobject_put (lib/kobject.c:730 (discriminator 1)) | [ 411.177154] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel drop_monitor act_gact cls_flower netdevsim psample act_mirred cls_u32 sch_ingress ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 411.179374] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 411.180300] Workqueue: netns cleanup_net [ 411.180672] RIP: 0010:kobject_put (lib/kobject.c:730 (discriminator 1)) [ 411.180893] Code: 89 ef e8 fe ad 4f ff 4d 85 e4 74 c0 4c 89 e5 f6 45 3c 01 75 a3 90 48 8b 75 00 48 89 ea 48 c7 c7 58 ce ba 87 e8 dc 42 2a ff 90 <0f> 0b 90 90 eb 88 c3 cc cc cc cc 5b be 03 00 00 00 5d 41 5c 41 5d All code ======== 0: 89 ef mov %ebp,%edi 2: e8 fe ad 4f ff call 0xffffffffff4fae05 7: 4d 85 e4 test %r12,%r12 a: 74 c0 je 0xffffffffffffffcc c: 4c 89 e5 mov %r12,%rbp f: f6 45 3c 01 testb $0x1,0x3c(%rbp) 13: 75 a3 jne 0xffffffffffffffb8 15: 90 nop 16: 48 8b 75 00 mov 0x0(%rbp),%rsi 1a: 48 89 ea mov %rbp,%rdx 1d: 48 c7 c7 58 ce ba 87 mov $0xffffffff87bace58,%rdi 24: e8 dc 42 2a ff call 0xffffffffff2a4305 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: eb 88 jmp 0xffffffffffffffb8 30: c3 ret 31: cc int3 32: cc int3 33: cc int3 34: cc int3 35: 5b pop %rbx 36: be 03 00 00 00 mov $0x3,%esi 3b: 5d pop %rbp 3c: 41 5c pop %r12 3e: 41 5d pop %r13 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: eb 88 jmp 0xffffffffffffff8e 6: c3 ret 7: cc int3 8: cc int3 9: cc int3 a: cc int3 b: 5b pop %rbx c: be 03 00 00 00 mov $0x3,%esi 11: 5d pop %rbp 12: 41 5c pop %r12 14: 41 5d pop %r13 [ 411.182455] RSP: 0018:ffffa969c0063d50 EFLAGS: 00010286 [ 411.182956] RAX: 0000000000000000 RBX: 00000000ffffffff RCX: 00000000ffffdfff [ 411.183631] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 411.184351] RBP: ffff9253c1dabcc0 R08: ffffffff87f78508 R09: 00000000ffffdfff [ 411.185047] R10: ffffffff87e98520 R11: ffffffff87f48520 R12: ffff9253c2a10000 [ 411.185733] R13: ffffa969c0063e08 R14: ffff9253c2a10b80 R15: ffff9253c3a61750 [ 411.186434] FS: 0000000000000000(0000) GS:ffff9253fec80000(0000) knlGS:0000000000000000 [ 411.187226] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 411.187816] CR2: 00007f35d831a0e0 CR3: 00000000038b6003 CR4: 0000000000770ef0 [ 411.188539] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 411.189212] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 411.189891] PKRU: 55555554 [ 411.190111] Call Trace: [ 411.190245] <TASK> [ 411.190374] ? __warn (kernel/panic.c:677) [ 411.190552] ? kobject_put (lib/kobject.c:730 (discriminator 1)) [ 411.190865] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 411.191060] ? handle_bug (arch/x86/kernel/traps.c:238) [ 411.191248] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 411.191460] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 411.191708] ? kobject_put (lib/kobject.c:730 (discriminator 1)) [ 411.191969] br_sysfs_delbr (net/bridge/br_sysfs_br.c:1086) [ 411.192272] br_dev_delete (net/bridge/br_if.c:396) [ 411.192631] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 411.192934] cleanup_net (net/core/net_namespace.c:630) [ 411.193129] ? process_one_work (kernel/workqueue.c:2606) [ 411.193528] process_one_work (kernel/workqueue.c:2633) [ 411.193876] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 411.194303] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 411.194736] kthread (kernel/kthread.c:388) [ 411.195078] ? __pfx_kthread (kernel/kthread.c:341) [ 411.195475] ret_from_fork (arch/x86/kernel/process.c:147) [ 411.195843] ? __pfx_kthread (kernel/kthread.c:341) [ 411.196215] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 411.201204] ------------[ cut here ]------------ | [ 411.201611] sysfs group 'bridge' not found for kobject 'br2' | [ 411.202173] WARNING: CPU: 1 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 411.202917] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel drop_monitor act_gact cls_flower netdevsim psample act_mirred cls_u32 sch_ingress ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 411.205497] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 411.206201] Workqueue: netns cleanup_net [ 411.206430] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 411.206796] Code: 48 89 ef 5d 41 5c e9 7a ad ff ff 48 89 ef e8 12 9b ff ff eb d1 90 49 8b 14 24 48 8b 33 48 c7 c7 a0 cd b2 87 e8 ac 67 c5 ff 90 <0f> 0b 90 90 5b 5d 41 5c c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 All code ======== 0: 48 89 ef mov %rbp,%rdi 3: 5d pop %rbp 4: 41 5c pop %r12 6: e9 7a ad ff ff jmp 0xffffffffffffad85 b: 48 89 ef mov %rbp,%rdi e: e8 12 9b ff ff call 0xffffffffffff9b25 13: eb d1 jmp 0xffffffffffffffe6 15: 90 nop 16: 49 8b 14 24 mov (%r12),%rdx 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 cd b2 87 mov $0xffffffff87b2cda0,%rdi 24: e8 ac 67 c5 ff call 0xffffffffffc567d5 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 5b pop %rbx 2f: 5d pop %rbp 30: 41 5c pop %r12 32: c3 ret 33: cc int3 34: cc int3 35: cc int3 36: cc int3 37: 66 data16 38: 66 data16 39: 2e cs 3a: 0f .byte 0xf 3b: 1f (bad) 3c: 84 00 test %al,(%rax) ... Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 5b pop %rbx 5: 5d pop %rbp 6: 41 5c pop %r12 8: c3 ret 9: cc int3 a: cc int3 b: cc int3 c: cc int3 d: 66 data16 e: 66 data16 f: 2e cs 10: 0f .byte 0xf 11: 1f (bad) 12: 84 00 test %al,(%rax) ... [ 411.208181] RSP: 0018:ffffa969c0063d70 EFLAGS: 00010286 [ 411.208459] RAX: 0000000000000000 RBX: ffffffff877472c0 RCX: 00000000ffffdfff [ 411.208921] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 411.209573] RBP: 0000000000000000 R08: ffffffff87f78508 R09: 00000000ffffdfff [ 411.209975] R10: ffffffff87e98520 R11: ffffffff87f48520 R12: ffff9253c2a10610 [ 411.210604] R13: ffffa969c0063e08 R14: ffff9253c2a10b80 R15: ffff9253c3a61750 [ 411.211255] FS: 0000000000000000(0000) GS:ffff9253fec80000(0000) knlGS:0000000000000000 [ 411.212039] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 411.212616] CR2: 00007f35d831a0e0 CR3: 00000000038b6003 CR4: 0000000000770ef0 [ 411.213286] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 411.214012] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 411.214697] PKRU: 55555554 [ 411.214965] Call Trace: [ 411.215211] <TASK> [ 411.215449] ? __warn (kernel/panic.c:677) [ 411.215800] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 411.216186] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 411.216569] ? handle_bug (arch/x86/kernel/traps.c:238) [ 411.216907] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 411.217286] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 411.217679] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 411.218093] br_dev_delete (net/bridge/br_if.c:396) [ 411.218474] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 411.218887] cleanup_net (net/core/net_namespace.c:630) [ 411.219185] ? process_one_work (kernel/workqueue.c:2606) [ 411.219565] process_one_work (kernel/workqueue.c:2633) [ 411.219905] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 411.220269] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 411.220685] kthread (kernel/kthread.c:388) [ 411.220994] ? __pfx_kthread (kernel/kthread.c:341) [ 411.221333] ret_from_fork (arch/x86/kernel/process.c:147) [ 411.221717] ? __pfx_kthread (kernel/kthread.c:341) [ 411.222016] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 411.225246] ------------[ cut here ]------------ | [ 411.225528] sysfs group 'bridge' not found for kobject 'br3' | [ 411.226001] WARNING: CPU: 1 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 411.226485] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel drop_monitor act_gact cls_flower netdevsim psample act_mirred cls_u32 sch_ingress ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 411.228666] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 411.229683] Workqueue: netns cleanup_net [ 411.229914] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 411.230257] Code: 48 89 ef 5d 41 5c e9 7a ad ff ff 48 89 ef e8 12 9b ff ff eb d1 90 49 8b 14 24 48 8b 33 48 c7 c7 a0 cd b2 87 e8 ac 67 c5 ff 90 <0f> 0b 90 90 5b 5d 41 5c c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 All code ======== 0: 48 89 ef mov %rbp,%rdi 3: 5d pop %rbp 4: 41 5c pop %r12 6: e9 7a ad ff ff jmp 0xffffffffffffad85 b: 48 89 ef mov %rbp,%rdi e: e8 12 9b ff ff call 0xffffffffffff9b25 13: eb d1 jmp 0xffffffffffffffe6 15: 90 nop 16: 49 8b 14 24 mov (%r12),%rdx 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 cd b2 87 mov $0xffffffff87b2cda0,%rdi 24: e8 ac 67 c5 ff call 0xffffffffffc567d5 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 5b pop %rbx 2f: 5d pop %rbp 30: 41 5c pop %r12 32: c3 ret 33: cc int3 34: cc int3 35: cc int3 36: cc int3 37: 66 data16 38: 66 data16 39: 2e cs 3a: 0f .byte 0xf 3b: 1f (bad) 3c: 84 00 test %al,(%rax) ... Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 5b pop %rbx 5: 5d pop %rbp 6: 41 5c pop %r12 8: c3 ret 9: cc int3 a: cc int3 b: cc int3 c: cc int3 d: 66 data16 e: 66 data16 f: 2e cs 10: 0f .byte 0xf 11: 1f (bad) 12: 84 00 test %al,(%rax) ... [ 411.231876] RSP: 0018:ffffa969c0063d70 EFLAGS: 00010286 [ 411.232396] RAX: 0000000000000000 RBX: ffffffff877472c0 RCX: 00000000ffffdfff [ 411.233058] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 411.233795] RBP: 0000000000000000 R08: ffffffff87f78508 R09: 00000000ffffdfff [ 411.234557] R10: ffffffff87e98520 R11: ffffffff87f48520 R12: ffff9253c525a610 [ 411.235291] R13: ffffa969c0063e08 R14: ffff9253c525ab80 R15: ffff9253c3a61750 [ 411.235989] FS: 0000000000000000(0000) GS:ffff9253fec80000(0000) knlGS:0000000000000000 [ 411.236822] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 411.237431] CR2: 00007f35d831a0e0 CR3: 00000000038b6003 CR4: 0000000000770ef0 [ 411.238169] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 411.238837] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 411.239200] PKRU: 55555554 [ 411.239454] Call Trace: [ 411.239587] <TASK> [ 411.239705] ? __warn (kernel/panic.c:677) [ 411.239879] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 411.240098] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 411.240303] ? handle_bug (arch/x86/kernel/traps.c:238) [ 411.240555] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 411.240858] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 411.241233] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 411.241584] br_dev_delete (net/bridge/br_if.c:396) [ 411.241778] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 411.242134] cleanup_net (net/core/net_namespace.c:630) [ 411.242472] ? process_one_work (kernel/workqueue.c:2606) [ 411.242871] process_one_work (kernel/workqueue.c:2633) [ 411.243257] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 411.243631] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 411.244040] kthread (kernel/kthread.c:388) [ 411.244351] ? __pfx_kthread (kernel/kthread.c:341) [ 411.244709] ret_from_fork (arch/x86/kernel/process.c:147) [ 411.245047] ? __pfx_kthread (kernel/kthread.c:341) [ 411.245400] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 411.551522] ------------[ cut here ]------------ | [ 411.552123] sysfs group 'bridge' not found for kobject 'br1' | [ 411.552824] WARNING: CPU: 2 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 411.553792] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel drop_monitor act_gact cls_flower netdevsim psample act_mirred cls_u32 sch_ingress ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 411.556174] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 411.556771] Workqueue: netns cleanup_net [ 411.556979] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 411.557233] Code: 48 89 ef 5d 41 5c e9 7a ad ff ff 48 89 ef e8 12 9b ff ff eb d1 90 49 8b 14 24 48 8b 33 48 c7 c7 a0 cd b2 87 e8 ac 67 c5 ff 90 <0f> 0b 90 90 5b 5d 41 5c c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 All code ======== 0: 48 89 ef mov %rbp,%rdi 3: 5d pop %rbp 4: 41 5c pop %r12 6: e9 7a ad ff ff jmp 0xffffffffffffad85 b: 48 89 ef mov %rbp,%rdi e: e8 12 9b ff ff call 0xffffffffffff9b25 13: eb d1 jmp 0xffffffffffffffe6 15: 90 nop 16: 49 8b 14 24 mov (%r12),%rdx 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 cd b2 87 mov $0xffffffff87b2cda0,%rdi 24: e8 ac 67 c5 ff call 0xffffffffffc567d5 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 5b pop %rbx 2f: 5d pop %rbp 30: 41 5c pop %r12 32: c3 ret 33: cc int3 34: cc int3 35: cc int3 36: cc int3 37: 66 data16 38: 66 data16 39: 2e cs 3a: 0f .byte 0xf 3b: 1f (bad) 3c: 84 00 test %al,(%rax) ... Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 5b pop %rbx 5: 5d pop %rbp 6: 41 5c pop %r12 8: c3 ret 9: cc int3 a: cc int3 b: cc int3 c: cc int3 d: 66 data16 e: 66 data16 f: 2e cs 10: 0f .byte 0xf 11: 1f (bad) 12: 84 00 test %al,(%rax) ... [ 411.558664] RSP: 0018:ffffa969c0063d70 EFLAGS: 00010286 [ 411.559157] RAX: 0000000000000000 RBX: ffffffff877472c0 RCX: 00000000ffffdfff [ 411.559922] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 411.560707] RBP: 0000000000000000 R08: ffffffff87f78508 R09: 00000000ffffdfff [ 411.561492] R10: ffffffff87e98520 R11: ffffffff87f48520 R12: ffff9253c25f0610 [ 411.562286] R13: ffffa969c0063e08 R14: ffff9253c25f0b80 R15: ffff9253c2b98050 [ 411.563081] FS: 0000000000000000(0000) GS:ffff9253fed00000(0000) knlGS:0000000000000000 [ 411.563988] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 411.564627] CR2: 0000558478a64ae8 CR3: 0000000008e60003 CR4: 0000000000770ef0 [ 411.565361] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 411.566083] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 411.566743] PKRU: 55555554 [ 411.567019] Call Trace: [ 411.567305] <TASK> [ 411.567484] ? __warn (kernel/panic.c:677) [ 411.567812] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 411.568182] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 411.568534] ? handle_bug (arch/x86/kernel/traps.c:238) [ 411.568823] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 411.569233] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 411.569592] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 411.569995] br_dev_delete (net/bridge/br_if.c:396) [ 411.570320] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 411.570763] cleanup_net (net/core/net_namespace.c:630) [ 411.570966] ? process_one_work (kernel/workqueue.c:2606) [ 411.571214] process_one_work (kernel/workqueue.c:2633) [ 411.571501] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 411.571774] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 411.572071] kthread (kernel/kthread.c:388) [ 411.572393] ? __pfx_kthread (kernel/kthread.c:341) [ 411.572599] ret_from_fork (arch/x86/kernel/process.c:147) [ 411.572795] ? __pfx_kthread (kernel/kthread.c:341) [ 411.573000] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 411.577072] ------------[ cut here ]------------ | [ 411.577553] sysfs group 'bridge' not found for kobject 'br2' | [ 411.578166] WARNING: CPU: 2 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 411.578989] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel drop_monitor act_gact cls_flower netdevsim psample act_mirred cls_u32 sch_ingress ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 411.581823] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 411.582899] Workqueue: netns cleanup_net [ 411.583303] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 411.583753] Code: 48 89 ef 5d 41 5c e9 7a ad ff ff 48 89 ef e8 12 9b ff ff eb d1 90 49 8b 14 24 48 8b 33 48 c7 c7 a0 cd b2 87 e8 ac 67 c5 ff 90 <0f> 0b 90 90 5b 5d 41 5c c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 All code ======== 0: 48 89 ef mov %rbp,%rdi 3: 5d pop %rbp 4: 41 5c pop %r12 6: e9 7a ad ff ff jmp 0xffffffffffffad85 b: 48 89 ef mov %rbp,%rdi e: e8 12 9b ff ff call 0xffffffffffff9b25 13: eb d1 jmp 0xffffffffffffffe6 15: 90 nop 16: 49 8b 14 24 mov (%r12),%rdx 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 cd b2 87 mov $0xffffffff87b2cda0,%rdi 24: e8 ac 67 c5 ff call 0xffffffffffc567d5 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 5b pop %rbx 2f: 5d pop %rbp 30: 41 5c pop %r12 32: c3 ret 33: cc int3 34: cc int3 35: cc int3 36: cc int3 37: 66 data16 38: 66 data16 39: 2e cs 3a: 0f .byte 0xf 3b: 1f (bad) 3c: 84 00 test %al,(%rax) ... Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 5b pop %rbx 5: 5d pop %rbp 6: 41 5c pop %r12 8: c3 ret 9: cc int3 a: cc int3 b: cc int3 c: cc int3 d: 66 data16 e: 66 data16 f: 2e cs 10: 0f .byte 0xf 11: 1f (bad) 12: 84 00 test %al,(%rax) ... [ 411.585470] RSP: 0018:ffffa969c0063d70 EFLAGS: 00010286 [ 411.585972] RAX: 0000000000000000 RBX: ffffffff877472c0 RCX: 00000000ffffdfff [ 411.586654] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 411.587071] RBP: 0000000000000000 R08: ffffffff87f78508 R09: 00000000ffffdfff [ 411.587521] R10: ffffffff87e98520 R11: ffffffff87f48520 R12: ffff9253c3b48610 [ 411.588120] R13: ffffa969c0063e08 R14: ffff9253c3b48b80 R15: ffff9253c2b98050 [ 411.588529] FS: 0000000000000000(0000) GS:ffff9253fed00000(0000) knlGS:0000000000000000 [ 411.589007] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 411.589606] CR2: 0000558478a64ae8 CR3: 0000000008e60003 CR4: 0000000000770ef0 [ 411.590334] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 411.590722] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 411.591349] PKRU: 55555554 [ 411.591600] Call Trace: [ 411.591853] <TASK> [ 411.591981] ? __warn (kernel/panic.c:677) [ 411.592169] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 411.592493] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 411.592772] ? handle_bug (arch/x86/kernel/traps.c:238) [ 411.593102] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 411.593449] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 411.593836] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 411.594232] br_dev_delete (net/bridge/br_if.c:396) [ 411.594543] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 411.594959] cleanup_net (net/core/net_namespace.c:630) [ 411.595316] ? process_one_work (kernel/workqueue.c:2606) [ 411.595729] process_one_work (kernel/workqueue.c:2633) [ 411.596118] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 411.596496] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 411.596909] kthread (kernel/kthread.c:388) [ 411.597214] ? __pfx_kthread (kernel/kthread.c:341) [ 411.597613] ret_from_fork (arch/x86/kernel/process.c:147) [ 411.597968] ? __pfx_kthread (kernel/kthread.c:341) [ 411.598338] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 411.602252] ------------[ cut here ]------------ | [ 411.602511] sysfs group 'bridge' not found for kobject 'br3' | [ 411.602821] WARNING: CPU: 2 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 411.603237] Modules linked in: vxlan ip6_udp_tunnel udp_tunnel drop_monitor act_gact cls_flower netdevsim psample act_mirred cls_u32 sch_ingress ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls [ 411.605449] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 411.606576] Workqueue: netns cleanup_net [ 411.606973] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 411.607441] Code: 48 89 ef 5d 41 5c e9 7a ad ff ff 48 89 ef e8 12 9b ff ff eb d1 90 49 8b 14 24 48 8b 33 48 c7 c7 a0 cd b2 87 e8 ac 67 c5 ff 90 <0f> 0b 90 90 5b 5d 41 5c c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 All code ======== 0: 48 89 ef mov %rbp,%rdi 3: 5d pop %rbp 4: 41 5c pop %r12 6: e9 7a ad ff ff jmp 0xffffffffffffad85 b: 48 89 ef mov %rbp,%rdi e: e8 12 9b ff ff call 0xffffffffffff9b25 13: eb d1 jmp 0xffffffffffffffe6 15: 90 nop 16: 49 8b 14 24 mov (%r12),%rdx 1a: 48 8b 33 mov (%rbx),%rsi 1d: 48 c7 c7 a0 cd b2 87 mov $0xffffffff87b2cda0,%rdi 24: e8 ac 67 c5 ff call 0xffffffffffc567d5 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 5b pop %rbx 2f: 5d pop %rbp 30: 41 5c pop %r12 32: c3 ret 33: cc int3 34: cc int3 35: cc int3 36: cc int3 37: 66 data16 38: 66 data16 39: 2e cs 3a: 0f .byte 0xf 3b: 1f (bad) 3c: 84 00 test %al,(%rax) ... Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 5b pop %rbx 5: 5d pop %rbp 6: 41 5c pop %r12 8: c3 ret 9: cc int3 a: cc int3 b: cc int3 c: cc int3 d: 66 data16 e: 66 data16 f: 2e cs 10: 0f .byte 0xf 11: 1f (bad) 12: 84 00 test %al,(%rax) ... [ 411.609088] RSP: 0018:ffffa969c0063d70 EFLAGS: 00010286 [ 411.609554] RAX: 0000000000000000 RBX: ffffffff877472c0 RCX: 00000000ffffdfff [ 411.610201] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 411.610894] RBP: 0000000000000000 R08: ffffffff87f78508 R09: 00000000ffffdfff [ 411.611598] R10: ffffffff87e98520 R11: ffffffff87f48520 R12: ffff9253c3b4c610 [ 411.612272] R13: ffffa969c0063e08 R14: ffff9253c3b4cb80 R15: ffff9253c2b98050 [ 411.612938] FS: 0000000000000000(0000) GS:ffff9253fed00000(0000) knlGS:0000000000000000 [ 411.613674] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 411.614192] CR2: 0000558478a64ae8 CR3: 0000000008e60003 CR4: 0000000000770ef0 [ 411.614874] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 411.615560] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 411.616199] PKRU: 55555554 [ 411.616443] Call Trace: [ 411.616670] <TASK> [ 411.616896] ? __warn (kernel/panic.c:677) [ 411.617180] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 411.617550] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 411.617903] ? handle_bug (arch/x86/kernel/traps.c:238) [ 411.618101] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 411.618310] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 411.618556] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 411.618818] br_dev_delete (net/bridge/br_if.c:396) [ 411.619065] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 411.619318] cleanup_net (net/core/net_namespace.c:630) [ 411.619641] ? process_one_work (kernel/workqueue.c:2606) [ 411.619955] process_one_work (kernel/workqueue.c:2633) [ 411.620177] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 411.620406] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 411.620648] kthread (kernel/kthread.c:388) [ 411.620826] ? __pfx_kthread (kernel/kthread.c:341) [ 411.621049] ret_from_fork (arch/x86/kernel/process.c:147) [ 411.621364] ? __pfx_kthread (kernel/kthread.c:341) Finger prints: 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 kobject_put: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 kobject_put: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