====================================== | # TEST: IPv4 over geneve4: PMTU exceptions [ OK ] | [ 36.794787] ------------[ cut here ]------------ | [ 36.795167] WARNING: CPU: 3 PID: 67 at drivers/net/geneve.c:1914 geneve_exit_batch_rtnl (drivers/net/geneve.c:1914 (discriminator 1)) geneve | [ 36.795673] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 36.796656] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 36.797277] Workqueue: netns cleanup_net [ 36.797581] RIP: 0010:geneve_exit_batch_rtnl (drivers/net/geneve.c:1914 (discriminator 1)) geneve [ 36.798167] Code: 75 27 48 8b 83 a8 00 00 00 48 8d 98 58 ff ff ff 48 39 04 24 75 d1 48 83 c4 08 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 90 <0f> 0b 90 eb d3 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 All code ======== 0: 75 27 jne 0x29 2: 48 8b 83 a8 00 00 00 mov 0xa8(%rbx),%rax 9: 48 8d 98 58 ff ff ff lea -0xa8(%rax),%rbx 10: 48 39 04 24 cmp %rax,(%rsp) 14: 75 d1 jne 0xffffffffffffffe7 16: 48 83 c4 08 add $0x8,%rsp 1a: 5b pop %rbx 1b: 5d pop %rbp 1c: 41 5c pop %r12 1e: 41 5d pop %r13 20: 41 5e pop %r14 22: 41 5f pop %r15 24: c3 ret 25: cc int3 26: cc int3 27: cc int3 28: cc int3 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: eb d3 jmp 0x2 2f: 0f 1f 40 00 nopl 0x0(%rax) 33: 90 nop 34: 90 nop 35: 90 nop 36: 90 nop 37: 90 nop 38: 90 nop 39: 90 nop 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: eb d3 jmp 0xffffffffffffffd8 5: 0f 1f 40 00 nopl 0x0(%rax) 9: 90 nop a: 90 nop b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop [ 36.799980] RSP: 0018:ffffb81a8025bdb0 EFLAGS: 00010202 [ 36.800502] RAX: ffff8ae7c26689b0 RBX: ffff8ae7c3af2e00 RCX: 0000000000000000 [ 36.801212] RDX: ffff8ae7c4f34008 RSI: ffffffff8477b8c0 RDI: ffff8ae7c2440aa0 [ 36.801949] RBP: ffff8ae7c26689a0 R08: 0000000000000001 R09: 0000000000000001 [ 36.802570] R10: 0000000000000004 R11: 0000000000000001 R12: ffffb81a8025be08 [ 36.802976] R13: ffffb81a8025bdf8 R14: ffff8ae7c2668950 R15: ffff8ae7c2668950 [ 36.803350] FS: 0000000000000000(0000) GS:ffff8ae7fed80000(0000) knlGS:0000000000000000 [ 36.803917] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.804213] CR2: 00007f0c61980270 CR3: 0000000027a60004 CR4: 0000000000770ef0 [ 36.804577] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.804990] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.805460] PKRU: 55555554 [ 36.805661] Call Trace: [ 36.805921] <TASK> [ 36.806168] ? __warn (kernel/panic.c:677) [ 36.806394] ? geneve_exit_batch_rtnl (drivers/net/geneve.c:1914 (discriminator 1)) geneve [ 36.806705] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 36.807048] ? handle_bug (arch/x86/kernel/traps.c:238) [ 36.807412] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 36.807804] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 36.808213] ? geneve_exit_batch_rtnl (drivers/net/geneve.c:1914 (discriminator 1)) geneve [ 36.808771] cleanup_net (net/core/net_namespace.c:630) [ 36.809164] ? process_one_work (kernel/workqueue.c:2606) [ 36.809587] process_one_work (kernel/workqueue.c:2633) [ 36.810008] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 36.810393] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 36.810917] kthread (kernel/kthread.c:388) [ 36.811264] ? __pfx_kthread (kernel/kthread.c:341) [ 36.811707] ret_from_fork (arch/x86/kernel/process.c:147) [ 36.812072] ? __pfx_kthread (kernel/kthread.c:341) [ 36.812492] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 58.286141] ------------[ cut here ]------------ | [ 58.286425] refcount_t: underflow; use-after-free. | [ 58.286722] WARNING: CPU: 2 PID: 67 at lib/refcount.c:28 refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) | [ 58.287400] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 58.289270] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 58.289982] Workqueue: netns cleanup_net [ 58.290207] RIP: 0010:refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 58.290482] 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 33 84 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 33 84 mov $0xffffffff843337b8,%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 [ 58.291434] RSP: 0018:ffffb81a8025bd78 EFLAGS: 00010286 [ 58.291718] RAX: 0000000000000000 RBX: ffff8ae7c4e74000 RCX: 00000000ffffdfff [ 58.292086] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 58.292452] RBP: ffff8ae7c4e74610 R08: ffffffff84778508 R09: 00000000ffffdfff [ 58.292826] R10: ffffffff84698520 R11: ffffffff84748520 R12: ffff8ae7c4e74000 [ 58.293212] R13: ffffb81a8025be08 R14: ffff8ae7c4e74b80 R15: ffff8ae7c3b78050 [ 58.293591] FS: 0000000000000000(0000) GS:ffff8ae7fed00000(0000) knlGS:0000000000000000 [ 58.294026] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.294343] CR2: 00007f986f01b270 CR3: 0000000002758003 CR4: 0000000000770ef0 [ 58.294732] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.295130] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.295514] PKRU: 55555554 [ 58.295676] Call Trace: [ 58.295818] <TASK> [ 58.295942] ? __warn (kernel/panic.c:677) [ 58.296135] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 58.296398] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 58.296606] ? handle_bug (arch/x86/kernel/traps.c:238) [ 58.296814] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 58.297023] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 58.297264] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 58.297521] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 58.297787] br_sysfs_delbr (net/bridge/br_sysfs_br.c:1086) [ 58.297987] br_dev_delete (net/bridge/br_if.c:396) [ 58.298182] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 58.298425] cleanup_net (net/core/net_namespace.c:630) [ 58.298633] ? process_one_work (kernel/workqueue.c:2606) [ 58.298867] process_one_work (kernel/workqueue.c:2633) [ 58.299095] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 58.299303] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 58.299529] kthread (kernel/kthread.c:388) [ 58.299706] ? __pfx_kthread (kernel/kthread.c:341) [ 58.299916] ret_from_fork (arch/x86/kernel/process.c:147) [ 58.300112] ? __pfx_kthread (kernel/kthread.c:341) [ 58.300311] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 58.302942] ------------[ cut here ]------------ | [ 58.303401] sysfs group 'bridge' not found for kobject 'br0' | [ 58.303927] WARNING: CPU: 0 PID: 67 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 58.304607] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 58.305863] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 58.306459] Workqueue: netns cleanup_net [ 58.306701] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 58.306975] 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 32 84 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 32 84 mov $0xffffffff8432cda0,%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) ... [ 58.307941] RSP: 0018:ffffb81a8025bd70 EFLAGS: 00010286 [ 58.308234] RAX: 0000000000000000 RBX: ffffffff83f472c0 RCX: 00000000ffffdfff [ 58.308603] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 58.308977] RBP: 0000000000000000 R08: ffffffff84778508 R09: 00000000ffffdfff [ 58.309340] R10: ffffffff84698520 R11: ffffffff84748520 R12: ffff8ae7c4e74610 [ 58.309712] R13: ffffb81a8025be08 R14: ffff8ae7c4e74b80 R15: ffff8ae7c3b78050 [ 58.310079] FS: 0000000000000000(0000) GS:ffff8ae7fec00000(0000) knlGS:0000000000000000 [ 58.310491] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.310793] CR2: 000055c171996dec CR3: 0000000003ae8004 CR4: 0000000000770ef0 [ 58.311163] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.311528] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.311901] PKRU: 55555554 [ 58.312046] Call Trace: [ 58.312185] <TASK> [ 58.312304] ? __warn (kernel/panic.c:677) [ 58.312480] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 58.312738] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 58.312974] ? handle_bug (arch/x86/kernel/traps.c:238) [ 58.313191] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 58.313431] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 58.313678] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 58.313922] br_dev_delete (net/bridge/br_if.c:396) [ 58.314150] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 58.314412] cleanup_net (net/core/net_namespace.c:630) [ 58.314637] ? process_one_work (kernel/workqueue.c:2606) [ 58.314896] process_one_work (kernel/workqueue.c:2633) [ 58.315125] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 58.315363] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 58.315610] kthread (kernel/kthread.c:388) [ 58.315820] ? __pfx_kthread (kernel/kthread.c:341) [ 58.316044] ret_from_fork (arch/x86/kernel/process.c:147) [ 58.316249] ? __pfx_kthread (kernel/kthread.c:341) [ 58.316474] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 62.536972] ------------[ cut here ]------------ | [ 62.537228] sysfs group 'bridge' not found for kobject 'br0' | [ 62.537542] WARNING: CPU: 0 PID: 67 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 62.537988] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 62.539040] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 62.539630] Workqueue: netns cleanup_net [ 62.539907] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 62.540187] 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 32 84 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 32 84 mov $0xffffffff8432cda0,%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) ... [ 62.541153] RSP: 0018:ffffb81a8025bd70 EFLAGS: 00010286 [ 62.541450] RAX: 0000000000000000 RBX: ffffffff83f472c0 RCX: 00000000ffffdfff [ 62.541843] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 62.542227] RBP: 0000000000000000 R08: ffffffff84778508 R09: 00000000ffffdfff [ 62.542623] R10: ffffffff84698520 R11: ffffffff84748520 R12: ffff8ae7c1936610 [ 62.543015] R13: ffffb81a8025be08 R14: ffff8ae7c1936b80 R15: ffff8ae7c3b7ae50 [ 62.543403] FS: 0000000000000000(0000) GS:ffff8ae7fec00000(0000) knlGS:0000000000000000 [ 62.543851] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.544174] CR2: 00007f6bcb3a1270 CR3: 0000000001ba0002 CR4: 0000000000770ef0 [ 62.544555] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.544958] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.545343] PKRU: 55555554 [ 62.545530] Call Trace: [ 62.545682] <TASK> [ 62.545830] ? __warn (kernel/panic.c:677) [ 62.546039] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 62.546284] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 62.546511] ? handle_bug (arch/x86/kernel/traps.c:238) [ 62.546727] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 62.546943] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 62.547190] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 62.547435] br_dev_delete (net/bridge/br_if.c:396) [ 62.547666] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 62.547923] cleanup_net (net/core/net_namespace.c:630) [ 62.548137] ? process_one_work (kernel/workqueue.c:2606) [ 62.548392] process_one_work (kernel/workqueue.c:2633) [ 62.548609] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 62.548815] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 62.549064] kthread (kernel/kthread.c:388) [ 62.549234] ? __pfx_kthread (kernel/kthread.c:341) [ 62.549482] ret_from_fork (arch/x86/kernel/process.c:147) [ 62.549676] ? __pfx_kthread (kernel/kthread.c:341) [ 62.549884] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 66.798959] ------------[ cut here ]------------ | [ 66.799262] sysfs group 'bridge' not found for kobject 'br0' | [ 66.799633] WARNING: CPU: 0 PID: 67 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 66.800105] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 66.801219] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 66.801853] Workqueue: netns cleanup_net [ 66.802109] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 66.802409] 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 32 84 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 32 84 mov $0xffffffff8432cda0,%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) ... [ 66.803381] RSP: 0018:ffffb81a8025bd70 EFLAGS: 00010286 [ 66.803701] RAX: 0000000000000000 RBX: ffffffff83f472c0 RCX: 00000000ffffdfff [ 66.804107] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 66.804533] RBP: 0000000000000000 R08: ffffffff84778508 R09: 00000000ffffdfff [ 66.804977] R10: ffffffff84698520 R11: ffffffff84748520 R12: ffff8ae7c25a0610 [ 66.805374] R13: ffffb81a8025be08 R14: ffff8ae7c25a0b80 R15: ffff8ae7c1c08050 [ 66.805817] FS: 0000000000000000(0000) GS:ffff8ae7fec00000(0000) knlGS:0000000000000000 [ 66.806280] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.806622] CR2: 00007f27a3866a30 CR3: 0000000027a60003 CR4: 0000000000770ef0 [ 66.807009] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.807408] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.807831] PKRU: 55555554 [ 66.808027] Call Trace: [ 66.808196] <TASK> [ 66.808349] ? __warn (kernel/panic.c:677) [ 66.808574] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 66.808847] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 66.809075] ? handle_bug (arch/x86/kernel/traps.c:238) [ 66.809319] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 66.809575] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 66.809847] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 66.810110] br_dev_delete (net/bridge/br_if.c:396) [ 66.810331] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 66.810601] cleanup_net (net/core/net_namespace.c:630) [ 66.810828] ? process_one_work (kernel/workqueue.c:2606) [ 66.811065] process_one_work (kernel/workqueue.c:2633) [ 66.811307] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 66.811556] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 66.811811] kthread (kernel/kthread.c:388) [ 66.811999] ? __pfx_kthread (kernel/kthread.c:341) [ 66.812228] ret_from_fork (arch/x86/kernel/process.c:147) [ 66.812459] ? __pfx_kthread (kernel/kthread.c:341) [ 66.812684] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 71.164882] ------------[ cut here ]------------ | [ 71.165167] sysfs group 'bridge' not found for kobject 'br0' | [ 71.165518] WARNING: CPU: 0 PID: 67 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 71.165959] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 71.167004] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 71.167625] Workqueue: netns cleanup_net [ 71.167865] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 71.168147] 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 32 84 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 32 84 mov $0xffffffff8432cda0,%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) ... [ 71.169104] RSP: 0018:ffffb81a8025bd70 EFLAGS: 00010286 [ 71.169406] RAX: 0000000000000000 RBX: ffffffff83f472c0 RCX: 00000000ffffdfff [ 71.169808] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 71.170204] RBP: 0000000000000000 R08: ffffffff84778508 R09: 00000000ffffdfff [ 71.170578] R10: ffffffff84698520 R11: ffffffff84748520 R12: ffff8ae7c25a6610 [ 71.170977] R13: ffffb81a8025be08 R14: ffff8ae7c25a6b80 R15: ffff8ae7c3b78050 [ 71.171393] FS: 0000000000000000(0000) GS:ffff8ae7fec00000(0000) knlGS:0000000000000000 [ 71.171831] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.172161] CR2: 00007f248273f000 CR3: 0000000027a60006 CR4: 0000000000770ef0 [ 71.172556] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.172975] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.173370] PKRU: 55555554 [ 71.173538] Call Trace: [ 71.173714] <TASK> [ 71.173858] ? __warn (kernel/panic.c:677) [ 71.174071] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 71.174311] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 71.174521] ? handle_bug (arch/x86/kernel/traps.c:238) [ 71.174742] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 71.174992] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 71.175243] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 71.175477] br_dev_delete (net/bridge/br_if.c:396) [ 71.175707] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 71.175971] cleanup_net (net/core/net_namespace.c:630) [ 71.176186] ? process_one_work (kernel/workqueue.c:2606) [ 71.176419] process_one_work (kernel/workqueue.c:2633) [ 71.176668] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 71.176913] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 71.177159] kthread (kernel/kthread.c:388) [ 71.177343] ? __pfx_kthread (kernel/kthread.c:341) [ 71.177577] ret_from_fork (arch/x86/kernel/process.c:147) [ 71.177809] ? __pfx_kthread (kernel/kthread.c:341) [ 71.178034] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 75.065978] ------------[ cut here ]------------ | [ 75.066237] sysfs group 'bridge' not found for kobject 'br0' | [ 75.066586] WARNING: CPU: 0 PID: 67 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 75.067039] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 75.068092] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 75.068697] Workqueue: netns cleanup_net [ 75.068944] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 75.069220] 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 32 84 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 32 84 mov $0xffffffff8432cda0,%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) ... [ 75.070194] RSP: 0018:ffffb81a8025bd70 EFLAGS: 00010286 [ 75.070494] RAX: 0000000000000000 RBX: ffffffff83f472c0 RCX: 00000000ffffdfff [ 75.070883] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 75.071283] RBP: 0000000000000000 R08: ffffffff84778508 R09: 00000000ffffdfff [ 75.071674] R10: ffffffff84698520 R11: ffffffff84748520 R12: ffff8ae7c4c0e610 [ 75.072078] R13: ffffb81a8025be08 R14: ffff8ae7c4c0eb80 R15: ffff8ae7c1c09750 [ 75.072475] FS: 0000000000000000(0000) GS:ffff8ae7fec00000(0000) knlGS:0000000000000000 [ 75.072907] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.073240] CR2: 00007f5f61be0000 CR3: 0000000027a60005 CR4: 0000000000770ef0 [ 75.073638] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.074037] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.074417] PKRU: 55555554 [ 75.074602] Call Trace: [ 75.074783] <TASK> [ 75.074942] ? __warn (kernel/panic.c:677) [ 75.075149] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 75.075385] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 75.075584] ? handle_bug (arch/x86/kernel/traps.c:238) [ 75.075804] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 75.076038] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 75.076292] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 75.076526] br_dev_delete (net/bridge/br_if.c:396) [ 75.076749] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 75.077031] cleanup_net (net/core/net_namespace.c:630) [ 75.077254] ? process_one_work (kernel/workqueue.c:2606) [ 75.077496] process_one_work (kernel/workqueue.c:2633) [ 75.077742] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 75.077966] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 75.078224] kthread (kernel/kthread.c:388) [ 75.078427] ? __pfx_kthread (kernel/kthread.c:341) [ 75.078642] ret_from_fork (arch/x86/kernel/process.c:147) [ 75.078869] ? __pfx_kthread (kernel/kthread.c:341) [ 75.079117] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 79.082871] ------------[ cut here ]------------ | [ 79.083328] sysfs group 'bridge' not found for kobject 'br0' | [ 79.083886] WARNING: CPU: 1 PID: 67 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 79.084634] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 79.086347] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 79.087389] Workqueue: netns cleanup_net [ 79.087726] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 79.088027] 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 32 84 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 32 84 mov $0xffffffff8432cda0,%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) ... [ 79.089024] RSP: 0018:ffffb81a8025bd70 EFLAGS: 00010286 [ 79.089292] RAX: 0000000000000000 RBX: ffffffff83f472c0 RCX: 00000000ffffdfff [ 79.089730] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 79.090280] RBP: 0000000000000000 R08: ffffffff84778508 R09: 00000000ffffdfff [ 79.090767] R10: ffffffff84698520 R11: ffffffff84748520 R12: ffff8ae7c1c00610 [ 79.091409] R13: ffffb81a8025be08 R14: ffff8ae7c1c00b80 R15: ffff8ae7c3b7ae50 [ 79.092081] FS: 0000000000000000(0000) GS:ffff8ae7fec80000(0000) knlGS:0000000000000000 [ 79.092815] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.093349] CR2: 00007f0b6c49b000 CR3: 0000000027a60004 CR4: 0000000000770ef0 [ 79.094003] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.094638] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.095317] PKRU: 55555554 [ 79.095567] Call Trace: [ 79.095813] <TASK> [ 79.096017] ? __warn (kernel/panic.c:677) [ 79.096316] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 79.096650] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 79.096966] ? handle_bug (arch/x86/kernel/traps.c:238) [ 79.097281] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 79.097594] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 79.097971] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 79.098343] br_dev_delete (net/bridge/br_if.c:396) [ 79.098614] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 79.099005] cleanup_net (net/core/net_namespace.c:630) [ 79.099356] ? process_one_work (kernel/workqueue.c:2606) [ 79.099609] process_one_work (kernel/workqueue.c:2633) [ 79.099844] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 79.100083] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 79.100393] kthread (kernel/kthread.c:388) [ 79.100585] ? __pfx_kthread (kernel/kthread.c:341) [ 79.100899] ret_from_fork (arch/x86/kernel/process.c:147) [ 79.101122] ? __pfx_kthread (kernel/kthread.c:341) [ 79.101320] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 82.994926] ------------[ cut here ]------------ | [ 82.995182] sysfs group 'bridge' not found for kobject 'br0' | [ 82.995488] WARNING: CPU: 0 PID: 67 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 82.995915] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 82.997002] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 82.997649] Workqueue: netns cleanup_net [ 82.997922] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 82.998231] 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 32 84 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 32 84 mov $0xffffffff8432cda0,%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) ... [ 82.999317] RSP: 0018:ffffb81a8025bd70 EFLAGS: 00010286 [ 82.999656] RAX: 0000000000000000 RBX: ffffffff83f472c0 RCX: 00000000ffffdfff [ 83.000101] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 83.000553] RBP: 0000000000000000 R08: ffffffff84778508 R09: 00000000ffffdfff [ 83.001010] R10: ffffffff84698520 R11: ffffffff84748520 R12: ffff8ae7c1c06610 [ 83.001483] R13: ffffb81a8025be08 R14: ffff8ae7c1c06b80 R15: ffff8ae7c3af4550 [ 83.001920] FS: 0000000000000000(0000) GS:ffff8ae7fec00000(0000) knlGS:0000000000000000 [ 83.002385] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 83.002763] CR2: 00007f7d17135270 CR3: 00000000018c4003 CR4: 0000000000770ef0 [ 83.003179] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 83.003616] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 83.004033] PKRU: 55555554 [ 83.004212] Call Trace: [ 83.004403] <TASK> [ 83.004575] ? __warn (kernel/panic.c:677) [ 83.004806] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 83.005068] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 83.005312] ? handle_bug (arch/x86/kernel/traps.c:238) [ 83.005533] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 83.005758] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 83.005994] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 83.006223] br_dev_delete (net/bridge/br_if.c:396) [ 83.006494] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 83.006830] cleanup_net (net/core/net_namespace.c:630) [ 83.007062] ? process_one_work (kernel/workqueue.c:2606) [ 83.007323] process_one_work (kernel/workqueue.c:2633) [ 83.007637] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 83.007875] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 83.008138] kthread (kernel/kthread.c:388) [ 83.008367] ? __pfx_kthread (kernel/kthread.c:341) [ 83.008604] ret_from_fork (arch/x86/kernel/process.c:147) [ 83.008861] ? __pfx_kthread (kernel/kthread.c:341) [ 83.009139] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 87.123880] ------------[ cut here ]------------ | [ 87.124127] sysfs group 'bridge' not found for kobject 'br0' | [ 87.124467] WARNING: CPU: 0 PID: 67 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 87.124930] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 87.125978] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 87.126581] Workqueue: netns cleanup_net [ 87.126823] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 87.127098] 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 32 84 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 32 84 mov $0xffffffff8432cda0,%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) ... [ 87.128064] RSP: 0018:ffffb81a8025bd70 EFLAGS: 00010286 [ 87.128365] RAX: 0000000000000000 RBX: ffffffff83f472c0 RCX: 00000000ffffdfff [ 87.128765] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 87.129159] RBP: 0000000000000000 R08: ffffffff84778508 R09: 00000000ffffdfff [ 87.129550] R10: ffffffff84698520 R11: ffffffff84748520 R12: ffff8ae7c4e70610 [ 87.129945] R13: ffffb81a8025be08 R14: ffff8ae7c4e70b80 R15: ffff8ae7c3b7c550 [ 87.130335] FS: 0000000000000000(0000) GS:ffff8ae7fec00000(0000) knlGS:0000000000000000 [ 87.130777] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 87.131096] CR2: 00007f27a3866a30 CR3: 0000000027a60003 CR4: 0000000000770ef0 [ 87.131484] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 87.131874] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 87.132262] PKRU: 55555554 [ 87.132438] Call Trace: [ 87.132597] <TASK> [ 87.132726] ? __warn (kernel/panic.c:677) [ 87.132903] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 87.133122] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 87.133319] ? handle_bug (arch/x86/kernel/traps.c:238) [ 87.133522] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 87.133742] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 87.134021] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 87.134262] br_dev_delete (net/bridge/br_if.c:396) [ 87.134473] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 87.134741] cleanup_net (net/core/net_namespace.c:630) [ 87.134962] ? process_one_work (kernel/workqueue.c:2606) [ 87.135220] process_one_work (kernel/workqueue.c:2633) [ 87.135462] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 87.135679] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 87.135943] kthread (kernel/kthread.c:388) [ 87.136166] ? __pfx_kthread (kernel/kthread.c:341) [ 87.136388] ret_from_fork (arch/x86/kernel/process.c:147) [ 87.136595] ? __pfx_kthread (kernel/kthread.c:341) [ 87.136803] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 91.180014] ------------[ cut here ]------------ | [ 91.180868] sysfs group 'bridge' not found for kobject 'br0' | [ 91.181787] WARNING: CPU: 3 PID: 67 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 91.183178] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 91.185308] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 91.186037] Workqueue: netns cleanup_net [ 91.186333] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 91.186586] 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 32 84 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 32 84 mov $0xffffffff8432cda0,%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) ... [ 91.188103] RSP: 0018:ffffb81a8025bd70 EFLAGS: 00010286 [ 91.188564] RAX: 0000000000000000 RBX: ffffffff83f472c0 RCX: 00000000ffffdfff [ 91.189600] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 91.190718] RBP: 0000000000000000 R08: ffffffff84778508 R09: 00000000ffffdfff [ 91.191833] R10: ffffffff84698520 R11: ffffffff84748520 R12: ffff8ae7c25a0610 [ 91.193002] R13: ffffb81a8025be08 R14: ffff8ae7c25a0b80 R15: ffff8ae7c3b78050 [ 91.194155] FS: 0000000000000000(0000) GS:ffff8ae7fed80000(0000) knlGS:0000000000000000 [ 91.195276] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.195927] CR2: 00007ffc45cdfb08 CR3: 0000000027a60001 CR4: 0000000000770ef0 [ 91.196685] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 91.197550] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 91.198450] PKRU: 55555554 [ 91.198897] Call Trace: [ 91.199204] <TASK> [ 91.199500] ? __warn (kernel/panic.c:677) [ 91.199717] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 91.200067] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 91.200459] ? handle_bug (arch/x86/kernel/traps.c:238) [ 91.200819] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 91.201322] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 91.201642] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 91.201955] br_dev_delete (net/bridge/br_if.c:396) [ 91.202349] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 91.202920] cleanup_net (net/core/net_namespace.c:630) [ 91.203289] ? process_one_work (kernel/workqueue.c:2606) [ 91.203868] process_one_work (kernel/workqueue.c:2633) [ 91.204439] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 91.204977] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 91.205455] kthread (kernel/kthread.c:388) [ 91.205774] ? __pfx_kthread (kernel/kthread.c:341) [ 91.206217] ret_from_fork (arch/x86/kernel/process.c:147) [ 91.206613] ? __pfx_kthread (kernel/kthread.c:341) [ 91.207041] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 95.319003] ------------[ cut here ]------------ | [ 95.319459] sysfs group 'bridge' not found for kobject 'br0' | [ 95.320029] WARNING: CPU: 2 PID: 67 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 95.320756] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 95.322499] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 95.323493] Workqueue: netns cleanup_net [ 95.323904] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 95.324374] 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 32 84 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 32 84 mov $0xffffffff8432cda0,%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) ... [ 95.325928] RSP: 0018:ffffb81a8025bd70 EFLAGS: 00010286 [ 95.326384] RAX: 0000000000000000 RBX: ffffffff83f472c0 RCX: 00000000ffffdfff [ 95.326752] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 95.327169] RBP: 0000000000000000 R08: ffffffff84778508 R09: 00000000ffffdfff [ 95.327553] R10: ffffffff84698520 R11: ffffffff84748520 R12: ffff8ae7c1bb0610 [ 95.327923] R13: ffffb81a8025be08 R14: ffff8ae7c1bb0b80 R15: ffff8ae7c3af4550 [ 95.328296] FS: 0000000000000000(0000) GS:ffff8ae7fed00000(0000) knlGS:0000000000000000 [ 95.328712] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 95.329011] CR2: 000055c171996dec CR3: 000000000567c003 CR4: 0000000000770ef0 [ 95.329382] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 95.329751] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 95.330115] PKRU: 55555554 [ 95.330262] Call Trace: [ 95.330399] <TASK> [ 95.330518] ? __warn (kernel/panic.c:677) [ 95.330698] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 95.330919] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 95.331118] ? handle_bug (arch/x86/kernel/traps.c:238) [ 95.331307] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 95.331510] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 95.331747] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 95.331969] br_dev_delete (net/bridge/br_if.c:396) [ 95.332163] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 95.332398] cleanup_net (net/core/net_namespace.c:630) [ 95.332592] ? process_one_work (kernel/workqueue.c:2606) [ 95.332817] process_one_work (kernel/workqueue.c:2633) [ 95.333035] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 95.333234] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 95.333457] kthread (kernel/kthread.c:388) [ 95.333631] ? __pfx_kthread (kernel/kthread.c:341) [ 95.333836] ret_from_fork (arch/x86/kernel/process.c:147) [ 95.334031] ? __pfx_kthread (kernel/kthread.c:341) [ 95.334231] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 99.466969] ------------[ cut here ]------------ | [ 99.467319] sysfs group 'bridge' not found for kobject 'br0' | [ 99.467664] WARNING: CPU: 0 PID: 67 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 99.468111] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 99.469218] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 99.469851] Workqueue: netns cleanup_net [ 99.470081] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 99.470374] 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 32 84 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 32 84 mov $0xffffffff8432cda0,%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) ... [ 99.471381] RSP: 0018:ffffb81a8025bd70 EFLAGS: 00010286 [ 99.471682] RAX: 0000000000000000 RBX: ffffffff83f472c0 RCX: 00000000ffffdfff [ 99.472084] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 99.472489] RBP: 0000000000000000 R08: ffffffff84778508 R09: 00000000ffffdfff [ 99.472897] R10: ffffffff84698520 R11: ffffffff84748520 R12: ffff8ae7c5698610 [ 99.473311] R13: ffffb81a8025be08 R14: ffff8ae7c5698b80 R15: ffff8ae7c39c9750 [ 99.473711] FS: 0000000000000000(0000) GS:ffff8ae7fec00000(0000) knlGS:0000000000000000 [ 99.474167] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 99.474510] CR2: 00007f27a3866a30 CR3: 0000000027a60001 CR4: 0000000000770ef0 [ 99.474924] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 99.475336] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 99.475738] PKRU: 55555554 [ 99.475922] Call Trace: [ 99.476083] <TASK> [ 99.476227] ? __warn (kernel/panic.c:677) [ 99.476433] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 99.476700] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 99.476924] ? handle_bug (arch/x86/kernel/traps.c:238) [ 99.477125] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 99.477371] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 99.477627] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 99.477886] br_dev_delete (net/bridge/br_if.c:396) [ 99.478093] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 99.478359] cleanup_net (net/core/net_namespace.c:630) [ 99.478600] ? process_one_work (kernel/workqueue.c:2606) [ 99.478859] process_one_work (kernel/workqueue.c:2633) [ 99.479089] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 99.479337] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 99.479607] kthread (kernel/kthread.c:388) [ 99.479824] ? __pfx_kthread (kernel/kthread.c:341) [ 99.480041] ret_from_fork (arch/x86/kernel/process.c:147) [ 99.480275] ? __pfx_kthread (kernel/kthread.c:341) [ 99.480506] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 103.782958] ------------[ cut here ]------------ | [ 103.783219] sysfs group 'bridge' not found for kobject 'br0' | [ 103.783524] WARNING: CPU: 2 PID: 67 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 103.784105] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 103.786102] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 103.787198] Workqueue: netns cleanup_net [ 103.787641] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 103.788055] 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 32 84 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 32 84 mov $0xffffffff8432cda0,%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) ... [ 103.789799] RSP: 0018:ffffb81a8025bd70 EFLAGS: 00010286 [ 103.790269] RAX: 0000000000000000 RBX: ffffffff83f472c0 RCX: 00000000ffffdfff [ 103.790955] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 103.791626] RBP: 0000000000000000 R08: ffffffff84778508 R09: 00000000ffffdfff [ 103.792351] R10: ffffffff84698520 R11: ffffffff84748520 R12: ffff8ae7c5698610 [ 103.792723] R13: ffffb81a8025be08 R14: ffff8ae7c5698b80 R15: ffff8ae7c1c0ae50 [ 103.793138] FS: 0000000000000000(0000) GS:ffff8ae7fed00000(0000) knlGS:0000000000000000 [ 103.793554] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 103.793854] CR2: 00007f4fa40f9270 CR3: 0000000005570006 CR4: 0000000000770ef0 [ 103.794217] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 103.794579] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 103.794956] PKRU: 55555554 [ 103.795102] Call Trace: [ 103.795237] <TASK> [ 103.795355] ? __warn (kernel/panic.c:677) [ 103.795527] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 103.795753] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 103.795950] ? handle_bug (arch/x86/kernel/traps.c:238) [ 103.796137] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 103.796338] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 103.796562] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 103.796785] br_dev_delete (net/bridge/br_if.c:396) [ 103.796979] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 103.797212] cleanup_net (net/core/net_namespace.c:630) [ 103.797404] ? process_one_work (kernel/workqueue.c:2606) [ 103.797623] process_one_work (kernel/workqueue.c:2633) [ 103.797842] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 103.798043] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 103.798266] kthread (kernel/kthread.c:388) [ 103.798436] ? __pfx_kthread (kernel/kthread.c:341) [ 103.798634] ret_from_fork (arch/x86/kernel/process.c:147) [ 103.798831] ? __pfx_kthread (kernel/kthread.c:341) [ 103.799027] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 108.144930] ------------[ cut here ]------------ | [ 108.145240] sysfs group 'bridge' not found for kobject 'br0' | [ 108.145739] WARNING: CPU: 2 PID: 67 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 108.146698] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 108.149161] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 108.150562] Workqueue: netns cleanup_net [ 108.151056] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 108.151636] 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 32 84 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 32 84 mov $0xffffffff8432cda0,%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) ... [ 108.152967] RSP: 0018:ffffb81a8025bd70 EFLAGS: 00010286 [ 108.153326] RAX: 0000000000000000 RBX: ffffffff83f472c0 RCX: 00000000ffffdfff [ 108.154075] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 108.154724] RBP: 0000000000000000 R08: ffffffff84778508 R09: 00000000ffffdfff [ 108.155592] R10: ffffffff84698520 R11: ffffffff84748520 R12: ffff8ae7c25a4610 [ 108.156558] R13: ffffb81a8025be08 R14: ffff8ae7c25a4b80 R15: ffff8ae7c1c08050 [ 108.157516] FS: 0000000000000000(0000) GS:ffff8ae7fed00000(0000) knlGS:0000000000000000 [ 108.158563] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 108.159231] CR2: 00007fda817ed000 CR3: 0000000027a60006 CR4: 0000000000770ef0 [ 108.160033] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 108.160851] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 108.161636] PKRU: 55555554 [ 108.161939] Call Trace: [ 108.162219] <TASK> [ 108.162487] ? __warn (kernel/panic.c:677) [ 108.162866] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 108.163401] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 108.163839] ? handle_bug (arch/x86/kernel/traps.c:238) [ 108.164087] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 108.164418] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 108.164846] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 108.165140] br_dev_delete (net/bridge/br_if.c:396) [ 108.165465] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 108.165718] cleanup_net (net/core/net_namespace.c:630) [ 108.165930] ? process_one_work (kernel/workqueue.c:2606) [ 108.166152] process_one_work (kernel/workqueue.c:2633) [ 108.166461] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 108.166858] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 108.167133] kthread (kernel/kthread.c:388) [ 108.167355] ? __pfx_kthread (kernel/kthread.c:341) [ 108.167635] ret_from_fork (arch/x86/kernel/process.c:147) [ 108.167985] ? __pfx_kthread (kernel/kthread.c:341) [ 108.168349] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 112.398907] ------------[ cut here ]------------ | [ 112.399270] sysfs group 'bridge' not found for kobject 'br0' | [ 112.399764] WARNING: CPU: 3 PID: 67 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 112.400302] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 112.401342] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 112.401925] Workqueue: netns cleanup_net [ 112.402133] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 112.402380] 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 32 84 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 32 84 mov $0xffffffff8432cda0,%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) ... [ 112.403315] RSP: 0018:ffffb81a8025bd70 EFLAGS: 00010286 [ 112.403584] RAX: 0000000000000000 RBX: ffffffff83f472c0 RCX: 00000000ffffdfff [ 112.403953] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 112.404314] RBP: 0000000000000000 R08: ffffffff84778508 R09: 00000000ffffdfff [ 112.404683] R10: ffffffff84698520 R11: ffffffff84748520 R12: ffff8ae7c1bb0610 [ 112.405051] R13: ffffb81a8025be08 R14: ffff8ae7c1bb0b80 R15: ffff8ae7c1c09750 [ 112.405414] FS: 0000000000000000(0000) GS:ffff8ae7fed80000(0000) knlGS:0000000000000000 [ 112.405832] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 112.406128] CR2: 00007f5a75640000 CR3: 0000000027a60002 CR4: 0000000000770ef0 [ 112.406489] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 112.406856] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 112.407217] PKRU: 55555554 [ 112.407360] Call Trace: [ 112.407495] <TASK> [ 112.407612] ? __warn (kernel/panic.c:677) [ 112.407792] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 112.408012] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 112.408209] ? handle_bug (arch/x86/kernel/traps.c:238) [ 112.408395] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 112.408596] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 112.408825] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 112.409046] br_dev_delete (net/bridge/br_if.c:396) [ 112.409238] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 112.409469] cleanup_net (net/core/net_namespace.c:630) [ 112.409661] ? process_one_work (kernel/workqueue.c:2606) [ 112.409887] process_one_work (kernel/workqueue.c:2633) [ 112.410100] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 112.410300] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 112.410524] kthread (kernel/kthread.c:388) [ 112.410702] ? __pfx_kthread (kernel/kthread.c:341) [ 112.410901] ret_from_fork (arch/x86/kernel/process.c:147) [ 112.411093] ? __pfx_kthread (kernel/kthread.c:341) [ 112.411292] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 116.545885] ------------[ cut here ]------------ | [ 116.546301] sysfs group 'bridge' not found for kobject 'br0' | [ 116.546780] WARNING: CPU: 3 PID: 67 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 116.547450] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 116.549016] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 116.549876] Workqueue: netns cleanup_net [ 116.550227] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 116.550566] 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 32 84 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 32 84 mov $0xffffffff8432cda0,%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) ... [ 116.551922] RSP: 0018:ffffb81a8025bd70 EFLAGS: 00010286 [ 116.552355] RAX: 0000000000000000 RBX: ffffffff83f472c0 RCX: 00000000ffffdfff [ 116.552748] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 116.553154] RBP: 0000000000000000 R08: ffffffff84778508 R09: 00000000ffffdfff [ 116.553513] R10: ffffffff84698520 R11: ffffffff84748520 R12: ffff8ae7c23f8610 [ 116.553881] R13: ffffb81a8025be08 R14: ffff8ae7c23f8b80 R15: ffff8ae7c39cc550 [ 116.554246] FS: 0000000000000000(0000) GS:ffff8ae7fed80000(0000) knlGS:0000000000000000 [ 116.554666] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 116.554965] CR2: 00007f85ff451000 CR3: 0000000027a60001 CR4: 0000000000770ef0 [ 116.555332] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 116.555702] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 116.556076] PKRU: 55555554 [ 116.556219] Call Trace: [ 116.556352] <TASK> [ 116.556470] ? __warn (kernel/panic.c:677) [ 116.556644] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 116.556867] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 116.557066] ? handle_bug (arch/x86/kernel/traps.c:238) [ 116.557252] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 116.557455] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 116.557677] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 116.557903] br_dev_delete (net/bridge/br_if.c:396) [ 116.558096] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 116.558325] cleanup_net (net/core/net_namespace.c:630) [ 116.558518] ? process_one_work (kernel/workqueue.c:2606) [ 116.558744] process_one_work (kernel/workqueue.c:2633) [ 116.558958] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 116.559157] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 116.559385] kthread (kernel/kthread.c:388) [ 116.559555] ? __pfx_kthread (kernel/kthread.c:341) [ 116.559759] ret_from_fork (arch/x86/kernel/process.c:147) [ 116.559952] ? __pfx_kthread (kernel/kthread.c:341) [ 116.560150] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 120.615020] ------------[ cut here ]------------ | [ 120.615473] sysfs group 'bridge' not found for kobject 'br0' | [ 120.616361] WARNING: CPU: 1 PID: 67 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 120.617234] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 120.620267] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 120.621988] Workqueue: netns cleanup_net [ 120.622393] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 120.622893] 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 32 84 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 32 84 mov $0xffffffff8432cda0,%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) ... [ 120.624763] RSP: 0018:ffffb81a8025bd70 EFLAGS: 00010286 [ 120.625227] RAX: 0000000000000000 RBX: ffffffff83f472c0 RCX: 00000000ffffdfff [ 120.625594] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 120.626069] RBP: 0000000000000000 R08: ffffffff84778508 R09: 00000000ffffdfff [ 120.626436] R10: ffffffff84698520 R11: ffffffff84748520 R12: ffff8ae7c1c04610 [ 120.626807] R13: ffffb81a8025be08 R14: ffff8ae7c1c04b80 R15: ffff8ae7c3b79750 [ 120.627173] FS: 0000000000000000(0000) GS:ffff8ae7fec80000(0000) knlGS:0000000000000000 [ 120.627986] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 120.628595] CR2: 000055c1739f9710 CR3: 0000000027a60006 CR4: 0000000000770ef0 [ 120.629634] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 120.630730] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 120.631833] PKRU: 55555554 [ 120.632258] Call Trace: [ 120.632672] <TASK> [ 120.632989] ? __warn (kernel/panic.c:677) [ 120.633335] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 120.633773] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 120.634097] ? handle_bug (arch/x86/kernel/traps.c:238) [ 120.634472] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 120.634871] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 120.635282] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 120.635711] br_dev_delete (net/bridge/br_if.c:396) [ 120.636078] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 120.636498] cleanup_net (net/core/net_namespace.c:630) [ 120.636856] ? process_one_work (kernel/workqueue.c:2606) [ 120.637216] process_one_work (kernel/workqueue.c:2633) [ 120.637633] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 120.637951] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 120.638379] kthread (kernel/kthread.c:388) [ 120.638699] ? __pfx_kthread (kernel/kthread.c:341) [ 120.639027] ret_from_fork (arch/x86/kernel/process.c:147) [ 120.639448] ? __pfx_kthread (kernel/kthread.c:341) Finger prints: geneve_exit_batch_rtnl:cleanup_net:process_one_work:worker_thread refcount_warn_saturate:br_sysfs_delbr:br_dev_delete:br_net_exit_batch_rtnl sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net