====================================== | [ 99.498119] ------------[ cut here ]------------ | [ 99.498606] sysfs group 'bridge' not found for kobject 'br0' | [ 99.499183] WARNING: CPU: 2 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 99.499931] Modules linked in: act_gact cls_flower sch_ingress vxlan ip6_udp_tunnel udp_tunnel [ 99.501437] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 99.502543] Workqueue: netns cleanup_net [ 99.502967] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 99.503417] 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 12 bb 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 12 bb mov $0xffffffffbb12cda0,%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) ... [ 99.504967] RSP: 0018:ffffa7db80063d70 EFLAGS: 00010286 [ 99.505458] RAX: 0000000000000000 RBX: ffffffffbad472c0 RCX: 00000000ffffdfff [ 99.506112] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 99.506762] RBP: 0000000000000000 R08: ffffffffbb578508 R09: 00000000ffffdfff [ 99.507433] R10: ffffffffbb498520 R11: ffffffffbb548520 R12: ffff95ea06888610 [ 99.508096] R13: ffffa7db80063e08 R14: ffff95ea06888b80 R15: ffffffffbca78f90 [ 99.508484] FS: 0000000000000000(0000) GS:ffff95ea3ed00000(0000) knlGS:0000000000000000 [ 99.508975] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 99.509378] CR2: 00007f07d134e000 CR3: 0000000026660003 CR4: 0000000000770ef0 [ 99.509756] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 99.510169] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 99.510560] PKRU: 55555554 [ 99.510704] Call Trace: [ 99.510852] <TASK> [ 99.510988] ? __warn (kernel/panic.c:677) [ 99.511176] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 99.511397] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 99.511609] ? handle_bug (arch/x86/kernel/traps.c:238) [ 99.511801] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 99.512023] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 99.512316] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 99.512535] br_dev_delete (net/bridge/br_if.c:396) [ 99.512725] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 99.512960] cleanup_net (net/core/net_namespace.c:630) [ 99.513153] ? process_one_work (kernel/workqueue.c:2606) [ 99.513369] process_one_work (kernel/workqueue.c:2633) [ 99.513611] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 99.513809] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 99.514038] kthread (kernel/kthread.c:388) [ 99.514208] ? __pfx_kthread (kernel/kthread.c:341) [ 99.514416] ret_from_fork (arch/x86/kernel/process.c:147) [ 99.514606] ? __pfx_kthread (kernel/kthread.c:341) [ 99.514801] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 99.517392] ------------[ cut here ]------------ | [ 99.517640] refcount_t: underflow; use-after-free. | [ 99.517949] WARNING: CPU: 2 PID: 11 at lib/refcount.c:28 refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) | [ 99.518565] Modules linked in: act_gact cls_flower sch_ingress vxlan ip6_udp_tunnel udp_tunnel [ 99.519927] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 99.520811] Workqueue: netns cleanup_net [ 99.521139] RIP: 0010:refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 99.521554] 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 13 bb 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 13 bb mov $0xffffffffbb1337b8,%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 [ 99.523072] RSP: 0018:ffffa7db80063d78 EFLAGS: 00010286 [ 99.523490] RAX: 0000000000000000 RBX: ffff95ea02998000 RCX: 00000000ffffdfff [ 99.523896] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 99.524263] RBP: ffff95ea02998610 R08: ffffffffbb578508 R09: 00000000ffffdfff [ 99.524651] R10: ffffffffbb498520 R11: ffffffffbb548520 R12: ffff95ea02998000 [ 99.525018] R13: ffffa7db80063e08 R14: ffff95ea02998b80 R15: ffffffffbca78f90 [ 99.525384] FS: 0000000000000000(0000) GS:ffff95ea3ed00000(0000) knlGS:0000000000000000 [ 99.525926] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 99.526221] CR2: 00007f07d134e000 CR3: 0000000026660003 CR4: 0000000000770ef0 [ 99.526594] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 99.526964] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 99.527336] PKRU: 55555554 [ 99.527498] Call Trace: [ 99.527650] <TASK> [ 99.527768] ? __warn (kernel/panic.c:677) [ 99.527949] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 99.528190] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 99.528387] ? handle_bug (arch/x86/kernel/traps.c:238) [ 99.528582] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 99.528784] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 99.529013] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 99.529254] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 99.529495] br_sysfs_delbr (net/bridge/br_sysfs_br.c:1086) [ 99.529700] br_dev_delete (net/bridge/br_if.c:396) [ 99.529892] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 99.530130] cleanup_net (net/core/net_namespace.c:630) [ 99.530323] ? process_one_work (kernel/workqueue.c:2606) [ 99.530552] process_one_work (kernel/workqueue.c:2633) [ 99.530764] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 99.530968] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 99.531198] kthread (kernel/kthread.c:388) [ 99.531366] ? __pfx_kthread (kernel/kthread.c:341) [ 99.531573] ret_from_fork (arch/x86/kernel/process.c:147) [ 99.531764] ? __pfx_kthread (kernel/kthread.c:341) [ 99.531970] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 99.534577] ------------[ cut here ]------------ | [ 99.534818] sysfs group 'bridge' not found for kobject 'br0' | [ 99.535129] WARNING: CPU: 2 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 99.535550] Modules linked in: act_gact cls_flower sch_ingress vxlan ip6_udp_tunnel udp_tunnel [ 99.536432] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 99.537017] Workqueue: netns cleanup_net [ 99.537224] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 99.537473] 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 12 bb 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 12 bb mov $0xffffffffbb12cda0,%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) ... [ 99.538460] RSP: 0018:ffffa7db80063d70 EFLAGS: 00010286 [ 99.538735] RAX: 0000000000000000 RBX: ffffffffbad472c0 RCX: 00000000ffffdfff [ 99.539103] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 99.539466] RBP: 0000000000000000 R08: ffffffffbb578508 R09: 00000000ffffdfff [ 99.539838] R10: ffffffffbb498520 R11: ffffffffbb548520 R12: ffff95ea02998610 [ 99.540205] R13: ffffa7db80063e08 R14: ffff95ea02998b80 R15: ffffffffbca78f90 [ 99.540580] FS: 0000000000000000(0000) GS:ffff95ea3ed00000(0000) knlGS:0000000000000000 [ 99.540995] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 99.541290] CR2: 00007f07d134e000 CR3: 0000000026660003 CR4: 0000000000770ef0 [ 99.541663] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 99.542030] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 99.542476] PKRU: 55555554 [ 99.542630] Call Trace: [ 99.542765] <TASK> [ 99.542882] ? __warn (kernel/panic.c:677) [ 99.543063] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 99.543281] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 99.543479] ? handle_bug (arch/x86/kernel/traps.c:238) [ 99.543674] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 99.543877] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 99.544104] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 99.544356] br_dev_delete (net/bridge/br_if.c:396) [ 99.544558] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 99.544786] cleanup_net (net/core/net_namespace.c:630) [ 99.544985] ? process_one_work (kernel/workqueue.c:2606) [ 99.545205] process_one_work (kernel/workqueue.c:2633) [ 99.545416] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 99.545621] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 99.545846] kthread (kernel/kthread.c:388) [ 99.546023] ? __pfx_kthread (kernel/kthread.c:341) [ 99.546221] ret_from_fork (arch/x86/kernel/process.c:147) [ 99.546412] ? __pfx_kthread (kernel/kthread.c:341) [ 99.546618] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 118.998220] ------------[ cut here ]------------ | [ 118.998743] sysfs group 'bridge' not found for kobject 'br0' | [ 118.999495] WARNING: CPU: 3 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 119.000508] Modules linked in: act_gact cls_flower sch_ingress vxlan ip6_udp_tunnel udp_tunnel [ 119.002579] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 119.004005] Workqueue: netns cleanup_net [ 119.004499] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 119.005080] 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 12 bb 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 12 bb mov $0xffffffffbb12cda0,%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) ... [ 119.006415] RSP: 0018:ffffa7db80063d70 EFLAGS: 00010286 [ 119.006686] RAX: 0000000000000000 RBX: ffffffffbad472c0 RCX: 00000000ffffdfff [ 119.007122] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 119.007689] RBP: 0000000000000000 R08: ffffffffbb578508 R09: 00000000ffffdfff [ 119.008075] R10: ffffffffbb498520 R11: ffffffffbb548520 R12: ffff95ea038d2610 [ 119.008637] R13: ffffa7db80063e08 R14: ffff95ea038d2b80 R15: ffffffffbca78f90 [ 119.009259] FS: 0000000000000000(0000) GS:ffff95ea3ed80000(0000) knlGS:0000000000000000 [ 119.009957] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 119.010419] CR2: 00007f6440c31a30 CR3: 0000000002928001 CR4: 0000000000770ef0 [ 119.011041] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 119.011651] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 119.012267] PKRU: 55555554 [ 119.012506] Call Trace: [ 119.012716] <TASK> [ 119.012901] ? __warn (kernel/panic.c:677) [ 119.013214] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 119.013578] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 119.013909] ? handle_bug (arch/x86/kernel/traps.c:238) [ 119.014228] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 119.014555] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 119.014925] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 119.015261] br_dev_delete (net/bridge/br_if.c:396) [ 119.015534] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 119.015894] cleanup_net (net/core/net_namespace.c:630) [ 119.016210] ? process_one_work (kernel/workqueue.c:2606) [ 119.016559] process_one_work (kernel/workqueue.c:2633) [ 119.016902] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 119.017221] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 119.017580] kthread (kernel/kthread.c:388) [ 119.017804] ? __pfx_kthread (kernel/kthread.c:341) [ 119.018128] ret_from_fork (arch/x86/kernel/process.c:147) [ 119.018420] ? __pfx_kthread (kernel/kthread.c:341) [ 119.018746] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 119.022153] ------------[ cut here ]------------ | [ 119.022636] sysfs group 'bridge' not found for kobject 'br0' | [ 119.023340] WARNING: CPU: 3 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 119.024305] Modules linked in: act_gact cls_flower sch_ingress vxlan ip6_udp_tunnel udp_tunnel [ 119.026399] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 119.027741] Workqueue: netns cleanup_net [ 119.028251] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 119.028830] 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 12 bb 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 12 bb mov $0xffffffffbb12cda0,%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) ... [ 119.030874] RSP: 0018:ffffa7db80063d70 EFLAGS: 00010286 [ 119.031459] RAX: 0000000000000000 RBX: ffffffffbad472c0 RCX: 00000000ffffdfff [ 119.032259] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 119.033074] RBP: 0000000000000000 R08: ffffffffbb578508 R09: 00000000ffffdfff [ 119.033603] R10: ffffffffbb498520 R11: ffffffffbb548520 R12: ffff95ea06888610 [ 119.034214] R13: ffffa7db80063e08 R14: ffff95ea06888b80 R15: ffffffffbca78f90 [ 119.034738] FS: 0000000000000000(0000) GS:ffff95ea3ed80000(0000) knlGS:0000000000000000 [ 119.035246] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 119.035602] CR2: 00007f6440c31a30 CR3: 0000000002928001 CR4: 0000000000770ef0 [ 119.036047] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 119.036482] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 119.036928] PKRU: 55555554 [ 119.037104] Call Trace: [ 119.037265] <TASK> [ 119.037406] ? __warn (kernel/panic.c:677) [ 119.037616] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 119.037882] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 119.038127] ? handle_bug (arch/x86/kernel/traps.c:238) [ 119.038352] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 119.038596] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 119.038867] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 119.039140] br_dev_delete (net/bridge/br_if.c:396) [ 119.039373] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 119.039652] cleanup_net (net/core/net_namespace.c:630) [ 119.039885] ? process_one_work (kernel/workqueue.c:2606) [ 119.040154] process_one_work (kernel/workqueue.c:2633) [ 119.040414] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 119.040655] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 119.040931] kthread (kernel/kthread.c:388) [ 119.041137] ? __pfx_kthread (kernel/kthread.c:341) [ 119.041376] ret_from_fork (arch/x86/kernel/process.c:147) [ 119.041607] ? __pfx_kthread (kernel/kthread.c:341) [ 119.041844] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 140.286340] ------------[ cut here ]------------ | [ 140.286788] sysfs group 'bridge' not found for kobject 'br0' | [ 140.287333] WARNING: CPU: 2 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 140.288110] Modules linked in: act_gact cls_flower sch_ingress vxlan ip6_udp_tunnel udp_tunnel [ 140.289792] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 140.290913] Workqueue: netns cleanup_net [ 140.291299] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 140.291722] 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 12 bb 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 12 bb mov $0xffffffffbb12cda0,%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) ... [ 140.293547] RSP: 0018:ffffa7db80063d70 EFLAGS: 00010286 [ 140.294052] RAX: 0000000000000000 RBX: ffffffffbad472c0 RCX: 00000000ffffdfff [ 140.294762] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 140.295392] RBP: 0000000000000000 R08: ffffffffbb578508 R09: 00000000ffffdfff [ 140.296047] R10: ffffffffbb498520 R11: ffffffffbb548520 R12: ffff95ea01934610 [ 140.296687] R13: ffffa7db80063e08 R14: ffff95ea01934b80 R15: ffff95ea01d82e50 [ 140.297306] FS: 0000000000000000(0000) GS:ffff95ea3ed00000(0000) knlGS:0000000000000000 [ 140.298038] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 140.298493] CR2: 00007f3fb0616000 CR3: 0000000026660003 CR4: 0000000000770ef0 [ 140.299151] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 140.299800] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 140.300196] PKRU: 55555554 [ 140.300387] Call Trace: [ 140.300520] <TASK> [ 140.300689] ? __warn (kernel/panic.c:677) [ 140.300898] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 140.301262] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 140.301556] ? handle_bug (arch/x86/kernel/traps.c:238) [ 140.301742] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 140.301950] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 140.302222] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 140.302490] br_dev_delete (net/bridge/br_if.c:396) [ 140.302785] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 140.303269] cleanup_net (net/core/net_namespace.c:630) [ 140.303631] ? process_one_work (kernel/workqueue.c:2606) [ 140.304090] process_one_work (kernel/workqueue.c:2633) [ 140.304477] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 140.304822] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 140.305210] kthread (kernel/kthread.c:388) [ 140.305602] ? __pfx_kthread (kernel/kthread.c:341) [ 140.305853] ret_from_fork (arch/x86/kernel/process.c:147) [ 140.306053] ? __pfx_kthread (kernel/kthread.c:341) [ 140.306412] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 140.420122] ------------[ cut here ]------------ | [ 140.420566] sysfs group 'bridge' not found for kobject 'br0' | [ 140.421144] WARNING: CPU: 2 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 140.421948] Modules linked in: act_gact cls_flower sch_ingress vxlan ip6_udp_tunnel udp_tunnel [ 140.423653] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 140.424852] Workqueue: netns cleanup_net [ 140.425286] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 140.425807] 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 12 bb 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 12 bb mov $0xffffffffbb12cda0,%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) ... [ 140.427746] RSP: 0018:ffffa7db80063d70 EFLAGS: 00010286 [ 140.428282] RAX: 0000000000000000 RBX: ffffffffbad472c0 RCX: 00000000ffffdfff [ 140.429103] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 140.429895] RBP: 0000000000000000 R08: ffffffffbb578508 R09: 00000000ffffdfff [ 140.430682] R10: ffffffffbb498520 R11: ffffffffbb548520 R12: ffff95ea01936610 [ 140.431436] R13: ffffa7db80063e08 R14: ffff95ea01936b80 R15: ffff95ea0582c550 [ 140.432135] FS: 0000000000000000(0000) GS:ffff95ea3ed00000(0000) knlGS:0000000000000000 [ 140.432842] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 140.433376] CR2: 00007f3fb0616000 CR3: 0000000026660003 CR4: 0000000000770ef0 [ 140.434112] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 140.434734] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 140.435449] PKRU: 55555554 [ 140.435687] Call Trace: [ 140.435992] <TASK> [ 140.436208] ? __warn (kernel/panic.c:677) [ 140.436393] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 140.436621] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 140.436868] ? handle_bug (arch/x86/kernel/traps.c:238) [ 140.437132] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 140.437405] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 140.437642] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 140.437889] br_dev_delete (net/bridge/br_if.c:396) [ 140.438105] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 140.438366] cleanup_net (net/core/net_namespace.c:630) [ 140.438569] ? process_one_work (kernel/workqueue.c:2606) [ 140.438821] process_one_work (kernel/workqueue.c:2633) [ 140.439060] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 140.439285] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 140.439525] kthread (kernel/kthread.c:388) [ 140.439710] ? __pfx_kthread (kernel/kthread.c:341) [ 140.439947] ret_from_fork (arch/x86/kernel/process.c:147) [ 140.440155] ? __pfx_kthread (kernel/kthread.c:341) [ 140.440377] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 149.641164] ------------[ cut here ]------------ | [ 149.641435] sysfs group 'bridge' not found for kobject 'br0' | [ 149.641808] WARNING: CPU: 0 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 149.642279] Modules linked in: act_gact cls_flower sch_ingress vxlan ip6_udp_tunnel udp_tunnel [ 149.643243] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 149.644100] Workqueue: netns cleanup_net [ 149.644364] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 149.644643] 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 12 bb 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 12 bb mov $0xffffffffbb12cda0,%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) ... [ 149.645629] RSP: 0018:ffffa7db80063d70 EFLAGS: 00010286 [ 149.645962] RAX: 0000000000000000 RBX: ffffffffbad472c0 RCX: 00000000ffffdfff [ 149.646366] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 149.646753] RBP: 0000000000000000 R08: ffffffffbb578508 R09: 00000000ffffdfff [ 149.647155] R10: ffffffffbb498520 R11: ffffffffbb548520 R12: ffff95ea01932610 [ 149.647561] R13: ffffa7db80063e08 R14: ffff95ea01932b80 R15: ffffffffbca78f90 [ 149.647982] FS: 0000000000000000(0000) GS:ffff95ea3ec00000(0000) knlGS:0000000000000000 [ 149.648427] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 149.648772] CR2: 00007f9802c7e000 CR3: 0000000002928006 CR4: 0000000000770ef0 [ 149.649192] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 149.649603] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 149.649996] PKRU: 55555554 [ 149.650193] Call Trace: [ 149.650374] <TASK> [ 149.650533] ? __warn (kernel/panic.c:677) [ 149.650758] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 149.651036] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 149.651276] ? handle_bug (arch/x86/kernel/traps.c:238) [ 149.651510] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 149.651745] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 149.652030] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 149.652302] br_dev_delete (net/bridge/br_if.c:396) [ 149.652533] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 149.652790] cleanup_net (net/core/net_namespace.c:630) [ 149.653030] ? process_one_work (kernel/workqueue.c:2606) [ 149.653300] process_one_work (kernel/workqueue.c:2633) [ 149.653571] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 149.653793] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 149.654065] kthread (kernel/kthread.c:388) [ 149.654277] ? __pfx_kthread (kernel/kthread.c:341) [ 149.654520] ret_from_fork (arch/x86/kernel/process.c:147) [ 149.654741] ? __pfx_kthread (kernel/kthread.c:341) [ 149.654994] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 149.657862] ------------[ cut here ]------------ | [ 149.658169] sysfs group 'bridge' not found for kobject 'br0' | [ 149.658512] WARNING: CPU: 0 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 149.658971] Modules linked in: act_gact cls_flower sch_ingress vxlan ip6_udp_tunnel udp_tunnel [ 149.659949] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 149.660568] Workqueue: netns cleanup_net [ 149.660802] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 149.661095] 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 12 bb 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 12 bb mov $0xffffffffbb12cda0,%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) ... [ 149.662098] RSP: 0018:ffffa7db80063d70 EFLAGS: 00010286 [ 149.662424] RAX: 0000000000000000 RBX: ffffffffbad472c0 RCX: 00000000ffffdfff [ 149.662821] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 149.663232] RBP: 0000000000000000 R08: ffffffffbb578508 R09: 00000000ffffdfff [ 149.663675] R10: ffffffffbb498520 R11: ffffffffbb548520 R12: ffff95ea01cc6610 [ 149.664088] R13: ffffa7db80063e08 R14: ffff95ea01cc6b80 R15: ffffffffbca78f90 [ 149.664475] FS: 0000000000000000(0000) GS:ffff95ea3ec00000(0000) knlGS:0000000000000000 [ 149.664947] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 149.665300] CR2: 00007f9802c7e000 CR3: 0000000002928006 CR4: 0000000000770ef0 [ 149.665704] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 149.666109] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 149.666546] PKRU: 55555554 [ 149.666802] Call Trace: [ 149.667063] <TASK> [ 149.667222] ? __warn (kernel/panic.c:677) [ 149.667433] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 149.667724] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 149.667975] ? handle_bug (arch/x86/kernel/traps.c:238) [ 149.668182] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 149.668425] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 149.668711] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 149.668988] br_dev_delete (net/bridge/br_if.c:396) [ 149.669206] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 149.669506] cleanup_net (net/core/net_namespace.c:630) [ 149.669746] ? process_one_work (kernel/workqueue.c:2606) [ 149.670004] process_one_work (kernel/workqueue.c:2633) [ 149.670240] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 149.670474] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 149.670774] kthread (kernel/kthread.c:388) [ 149.670982] ? __pfx_kthread (kernel/kthread.c:341) [ 149.671220] ret_from_fork (arch/x86/kernel/process.c:147) [ 149.671456] ? __pfx_kthread (kernel/kthread.c:341) Finger prints: sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net refcount_warn_saturate:br_sysfs_delbr:br_dev_delete:br_net_exit_batch_rtnl sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net