====================================== | # TEST: IPv4 over geneve4: PMTU exceptions [ OK ] | [ 35.623432] ------------[ cut here ]------------ | [ 35.623771] WARNING: CPU: 2 PID: 68 at drivers/net/geneve.c:1914 geneve_exit_batch_rtnl (drivers/net/geneve.c:1914 (discriminator 1)) geneve | [ 35.624278] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 35.626417] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 35.627846] Workqueue: netns cleanup_net [ 35.628357] RIP: 0010:geneve_exit_batch_rtnl (drivers/net/geneve.c:1914 (discriminator 1)) geneve [ 35.629081] 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 [ 35.631284] RSP: 0018:ffffb7d180263db0 EFLAGS: 00010202 [ 35.631842] RAX: ffff8c2f425d8270 RBX: ffff8c2f42a78000 RCX: 0000000000000000 [ 35.632729] RDX: ffff8c2f44e40008 RSI: ffffffffabf7b8c0 RDI: ffff8c2f42482be0 [ 35.633139] RBP: ffff8c2f425d8260 R08: 0000000000000001 R09: 0000000000000001 [ 35.633613] R10: 0000000000000004 R11: 0000000000000001 R12: ffffb7d180263e08 [ 35.634259] R13: ffffb7d180263df8 R14: ffff8c2f425d8210 R15: ffff8c2f425d8210 [ 35.634643] FS: 0000000000000000(0000) GS:ffff8c2f7ed00000(0000) knlGS:0000000000000000 [ 35.635309] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.635615] CR2: 00007fb296a5f270 CR3: 000000001dc60003 CR4: 0000000000770ef0 [ 35.636071] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.636810] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.637378] PKRU: 55555554 [ 35.637737] Call Trace: [ 35.638056] [ 35.638374] ? __warn (kernel/panic.c:677) [ 35.638840] ? geneve_exit_batch_rtnl (drivers/net/geneve.c:1914 (discriminator 1)) geneve [ 35.639548] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 35.640055] ? handle_bug (arch/x86/kernel/traps.c:238) [ 35.640546] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 35.641081] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 35.641637] ? geneve_exit_batch_rtnl (drivers/net/geneve.c:1914 (discriminator 1)) geneve [ 35.642359] cleanup_net (net/core/net_namespace.c:630) [ 35.642830] ? process_one_work (kernel/workqueue.c:2606) [ 35.643398] process_one_work (kernel/workqueue.c:2633) [ 35.643927] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 35.644354] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 35.644874] kthread (kernel/kthread.c:388) [ 35.645243] ? __pfx_kthread (kernel/kthread.c:341) [ 35.645745] ret_from_fork (arch/x86/kernel/process.c:147) [ 35.646203] ? __pfx_kthread (kernel/kthread.c:341) [ 35.646630] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 55.929616] ------------[ cut here ]------------ | [ 55.930032] refcount_t: underflow; use-after-free. | [ 55.930477] WARNING: CPU: 3 PID: 68 at lib/refcount.c:28 refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) | [ 55.931211] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 55.932960] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 55.933984] Workqueue: netns cleanup_net [ 55.934374] RIP: 0010:refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 55.934852] 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 e8 37 b3 ab 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 e8 37 b3 ab mov $0xffffffffabb337e8,%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 [ 55.936438] RSP: 0018:ffffb7d180263d78 EFLAGS: 00010286 [ 55.936869] RAX: 0000000000000000 RBX: ffff8c2f41932000 RCX: 00000000ffffdfff [ 55.937451] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 55.938054] RBP: ffff8c2f41932610 R08: ffffffffabf78508 R09: 00000000ffffdfff [ 55.938666] R10: ffffffffabe98520 R11: ffffffffabf48520 R12: ffff8c2f41932000 [ 55.939279] R13: ffffb7d180263e08 R14: ffff8c2f41932b80 R15: ffff8c2f44caae50 [ 55.939689] FS: 0000000000000000(0000) GS:ffff8c2f7ed80000(0000) knlGS:0000000000000000 [ 55.940188] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.940589] CR2: 00005563702dadec CR3: 0000000004e86002 CR4: 0000000000770ef0 [ 55.941114] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.941506] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.941871] PKRU: 55555554 [ 55.942043] Call Trace: [ 55.942177] [ 55.942296] ? __warn (kernel/panic.c:677) [ 55.942478] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 55.942727] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 55.942925] ? handle_bug (arch/x86/kernel/traps.c:238) [ 55.943139] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 55.943354] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 55.943580] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 55.943821] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 55.944063] br_sysfs_delbr (net/bridge/br_sysfs_br.c:1086) [ 55.944282] br_dev_delete (net/bridge/br_if.c:396) [ 55.944482] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 55.944716] cleanup_net (net/core/net_namespace.c:630) [ 55.944912] ? process_one_work (kernel/workqueue.c:2606) [ 55.945130] process_one_work (kernel/workqueue.c:2633) [ 55.945382] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 55.945582] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 55.945916] kthread (kernel/kthread.c:388) [ 55.946204] ? __pfx_kthread (kernel/kthread.c:341) [ 55.946462] ret_from_fork (arch/x86/kernel/process.c:147) [ 55.946701] ? __pfx_kthread (kernel/kthread.c:341) [ 55.947015] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 55.951792] ------------[ cut here ]------------ | [ 55.952237] sysfs group 'bridge' not found for kobject 'br0' | [ 55.952744] WARNING: CPU: 3 PID: 68 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 55.953482] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 55.955140] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 55.955785] Workqueue: netns cleanup_net [ 55.955995] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 55.956246] 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 d0 cd b2 ab 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 d0 cd b2 ab mov $0xffffffffabb2cdd0,%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) ... [ 55.957202] RSP: 0018:ffffb7d180263d70 EFLAGS: 00010286 [ 55.957491] RAX: 0000000000000000 RBX: ffffffffab7472c0 RCX: 00000000ffffdfff [ 55.957877] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 55.958239] RBP: 0000000000000000 R08: ffffffffabf78508 R09: 00000000ffffdfff [ 55.958612] R10: ffffffffabe98520 R11: ffffffffabf48520 R12: ffff8c2f41932610 [ 55.958994] R13: ffffb7d180263e08 R14: ffff8c2f41932b80 R15: ffff8c2f44caae50 [ 55.959367] FS: 0000000000000000(0000) GS:ffff8c2f7ed80000(0000) knlGS:0000000000000000 [ 55.959806] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.960102] CR2: 00005563702dadec CR3: 000000001dc60006 CR4: 0000000000770ef0 [ 55.960475] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.960855] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.961226] PKRU: 55555554 [ 55.961379] Call Trace: [ 55.961513] [ 55.961630] ? __warn (kernel/panic.c:677) [ 55.961805] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 55.962048] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 55.962245] ? handle_bug (arch/x86/kernel/traps.c:238) [ 55.962439] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 55.962645] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 55.962868] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 55.963112] br_dev_delete (net/bridge/br_if.c:396) [ 55.963303] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 55.963542] cleanup_net (net/core/net_namespace.c:630) [ 55.963736] ? process_one_work (kernel/workqueue.c:2606) [ 55.963956] process_one_work (kernel/workqueue.c:2633) [ 55.964193] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 55.964402] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 55.964629] kthread (kernel/kthread.c:388) [ 55.964797] ? __pfx_kthread (kernel/kthread.c:341) [ 55.964997] ret_from_fork (arch/x86/kernel/process.c:147) [ 55.965189] ? __pfx_kthread (kernel/kthread.c:341) [ 55.965417] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 59.901523] ------------[ cut here ]------------ | [ 59.901981] sysfs group 'bridge' not found for kobject 'br0' | [ 59.902537] WARNING: CPU: 2 PID: 68 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 59.903298] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 59.905050] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 59.906095] Workqueue: netns cleanup_net [ 59.906450] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 59.906846] 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 d0 cd b2 ab 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 d0 cd b2 ab mov $0xffffffffabb2cdd0,%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) ... [ 59.908419] RSP: 0018:ffffb7d180263d70 EFLAGS: 00010286 [ 59.908855] RAX: 0000000000000000 RBX: ffffffffab7472c0 RCX: 00000000ffffdfff [ 59.909434] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 59.909816] RBP: 0000000000000000 R08: ffffffffabf78508 R09: 00000000ffffdfff [ 59.910200] R10: ffffffffabe98520 R11: ffffffffabf48520 R12: ffff8c2f43fe0610 [ 59.910574] R13: ffffb7d180263e08 R14: ffff8c2f43fe0b80 R15: ffff8c2f44caae50 [ 59.910938] FS: 0000000000000000(0000) GS:ffff8c2f7ed00000(0000) knlGS:0000000000000000 [ 59.911353] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.911651] CR2: 00007fe15f881000 CR3: 000000001dc60003 CR4: 0000000000770ef0 [ 59.912015] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.912384] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.912747] PKRU: 55555554 [ 59.912892] Call Trace: [ 59.913025] [ 59.913143] ? __warn (kernel/panic.c:677) [ 59.913352] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 59.913572] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 59.913768] ? handle_bug (arch/x86/kernel/traps.c:238) [ 59.913955] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 59.914157] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 59.914387] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 59.914607] br_dev_delete (net/bridge/br_if.c:396) [ 59.914813] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 59.915047] cleanup_net (net/core/net_namespace.c:630) [ 59.915242] ? process_one_work (kernel/workqueue.c:2606) [ 59.915467] process_one_work (kernel/workqueue.c:2633) [ 59.915685] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 59.915885] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 59.916111] kthread (kernel/kthread.c:388) [ 59.916280] ? __pfx_kthread (kernel/kthread.c:341) [ 59.916486] ret_from_fork (arch/x86/kernel/process.c:147) [ 59.916679] ? __pfx_kthread (kernel/kthread.c:341) [ 59.916878] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 63.803544] ------------[ cut here ]------------ | [ 63.804023] sysfs group 'bridge' not found for kobject 'br0' | [ 63.804648] WARNING: CPU: 3 PID: 68 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 63.805411] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 63.806478] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 63.807054] Workqueue: netns cleanup_net [ 63.807324] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 63.807740] 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 d0 cd b2 ab 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 d0 cd b2 ab mov $0xffffffffabb2cdd0,%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) ... [ 63.809148] RSP: 0018:ffffb7d180263d70 EFLAGS: 00010286 [ 63.809645] RAX: 0000000000000000 RBX: ffffffffab7472c0 RCX: 00000000ffffdfff [ 63.810311] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 63.810989] RBP: 0000000000000000 R08: ffffffffabf78508 R09: 00000000ffffdfff [ 63.811671] R10: ffffffffabe98520 R11: ffffffffabf48520 R12: ffff8c2f43fe4610 [ 63.812337] R13: ffffb7d180263e08 R14: ffff8c2f43fe4b80 R15: ffff8c2f42a7ae50 [ 63.813024] FS: 0000000000000000(0000) GS:ffff8c2f7ed80000(0000) knlGS:0000000000000000 [ 63.813764] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 63.814258] CR2: 00007f047ed3e000 CR3: 000000001dc60004 CR4: 0000000000770ef0 [ 63.814876] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 63.815518] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 63.816125] PKRU: 55555554 [ 63.816368] Call Trace: [ 63.816599] [ 63.816785] ? __warn (kernel/panic.c:677) [ 63.817078] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 63.817309] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 63.817542] ? handle_bug (arch/x86/kernel/traps.c:238) [ 63.817760] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 63.818042] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 63.818305] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 63.818667] br_dev_delete (net/bridge/br_if.c:396) [ 63.818861] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 63.819095] cleanup_net (net/core/net_namespace.c:630) [ 63.819290] ? process_one_work (kernel/workqueue.c:2606) [ 63.819579] process_one_work (kernel/workqueue.c:2633) [ 63.819944] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 63.820183] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 63.820461] kthread (kernel/kthread.c:388) [ 63.820738] ? __pfx_kthread (kernel/kthread.c:341) [ 63.821112] ret_from_fork (arch/x86/kernel/process.c:147) [ 63.821478] ? __pfx_kthread (kernel/kthread.c:341) [ 63.821861] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 67.847569] ------------[ cut here ]------------ | [ 67.848027] sysfs group 'bridge' not found for kobject 'br0' | [ 67.848598] WARNING: CPU: 2 PID: 68 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 67.849372] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 67.851244] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 67.852332] Workqueue: netns cleanup_net [ 67.852717] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 67.853142] 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 d0 cd b2 ab 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 d0 cd b2 ab mov $0xffffffffabb2cdd0,%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) ... [ 67.854800] RSP: 0018:ffffb7d180263d70 EFLAGS: 00010286 [ 67.855221] RAX: 0000000000000000 RBX: ffffffffab7472c0 RCX: 00000000ffffdfff [ 67.855879] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 67.856271] RBP: 0000000000000000 R08: ffffffffabf78508 R09: 00000000ffffdfff [ 67.856700] R10: ffffffffabe98520 R11: ffffffffabf48520 R12: ffff8c2f42ba8610 [ 67.857063] R13: ffffb7d180263e08 R14: ffff8c2f42ba8b80 R15: ffff8c2f43c28050 [ 67.857441] FS: 0000000000000000(0000) GS:ffff8c2f7ed00000(0000) knlGS:0000000000000000 [ 67.857880] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.858175] CR2: 00007fcefbfd6000 CR3: 000000001dc60004 CR4: 0000000000770ef0 [ 67.858543] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.858930] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.859290] PKRU: 55555554 [ 67.859441] Call Trace: [ 67.859575] [ 67.859692] ? __warn (kernel/panic.c:677) [ 67.859893] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 67.860114] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 67.860310] ? handle_bug (arch/x86/kernel/traps.c:238) [ 67.860504] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 67.860705] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 67.860930] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 67.861176] br_dev_delete (net/bridge/br_if.c:396) [ 67.861376] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 67.861608] cleanup_net (net/core/net_namespace.c:630) [ 67.861801] ? process_one_work (kernel/workqueue.c:2606) [ 67.862018] process_one_work (kernel/workqueue.c:2633) [ 67.862259] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 67.862466] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 67.862689] kthread (kernel/kthread.c:388) [ 67.862859] ? __pfx_kthread (kernel/kthread.c:341) [ 67.863056] ret_from_fork (arch/x86/kernel/process.c:147) [ 67.863274] ? __pfx_kthread (kernel/kthread.c:341) [ 67.863477] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 71.741526] ------------[ cut here ]------------ | [ 71.741869] sysfs group 'bridge' not found for kobject 'br0' | [ 71.742193] WARNING: CPU: 2 PID: 68 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 71.742646] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 71.743640] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 71.744221] Workqueue: netns cleanup_net [ 71.744436] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 71.744688] 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 d0 cd b2 ab 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 d0 cd b2 ab mov $0xffffffffabb2cdd0,%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) ... [ 71.745645] RSP: 0018:ffffb7d180263d70 EFLAGS: 00010286 [ 71.745917] RAX: 0000000000000000 RBX: ffffffffab7472c0 RCX: 00000000ffffdfff [ 71.746280] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 71.746651] RBP: 0000000000000000 R08: ffffffffabf78508 R09: 00000000ffffdfff [ 71.747018] R10: ffffffffabe98520 R11: ffffffffabf48520 R12: ffff8c2f41936610 [ 71.747398] R13: ffffb7d180263e08 R14: ffff8c2f41936b80 R15: ffff8c2f44cadc50 [ 71.747769] FS: 0000000000000000(0000) GS:ffff8c2f7ed00000(0000) knlGS:0000000000000000 [ 71.748177] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.748481] CR2: 00005563702dadec CR3: 0000000001c06005 CR4: 0000000000770ef0 [ 71.748853] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.749218] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.749584] PKRU: 55555554 [ 71.749728] Call Trace: [ 71.749862] [ 71.749980] ? __warn (kernel/panic.c:677) [ 71.750156] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 71.750378] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 71.750574] ? handle_bug (arch/x86/kernel/traps.c:238) [ 71.750761] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 71.750964] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 71.751187] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 71.751412] br_dev_delete (net/bridge/br_if.c:396) [ 71.751604] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 71.751834] cleanup_net (net/core/net_namespace.c:630) [ 71.752026] ? process_one_work (kernel/workqueue.c:2606) [ 71.752249] process_one_work (kernel/workqueue.c:2633) [ 71.752467] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 71.752665] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 71.752891] kthread (kernel/kthread.c:388) [ 71.753062] ? __pfx_kthread (kernel/kthread.c:341) [ 71.753262] ret_from_fork (arch/x86/kernel/process.c:147) [ 71.753460] ? __pfx_kthread (kernel/kthread.c:341) [ 71.753658] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 76.046707] ------------[ cut here ]------------ | [ 76.046988] sysfs group 'bridge' not found for kobject 'br0' | [ 76.047295] WARNING: CPU: 1 PID: 68 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 76.048226] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 76.050781] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 76.052212] Workqueue: netns cleanup_net [ 76.052661] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 76.053227] 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 d0 cd b2 ab 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 d0 cd b2 ab mov $0xffffffffabb2cdd0,%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) ... [ 76.055327] RSP: 0018:ffffb7d180263d70 EFLAGS: 00010286 [ 76.055952] RAX: 0000000000000000 RBX: ffffffffab7472c0 RCX: 00000000ffffdfff [ 76.056519] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 76.057043] RBP: 0000000000000000 R08: ffffffffabf78508 R09: 00000000ffffdfff [ 76.057434] R10: ffffffffabe98520 R11: ffffffffabf48520 R12: ffff8c2f43e18610 [ 76.057798] R13: ffffb7d180263e08 R14: ffff8c2f43e18b80 R15: ffff8c2f43df8050 [ 76.058163] FS: 0000000000000000(0000) GS:ffff8c2f7ec80000(0000) knlGS:0000000000000000 [ 76.058591] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.058888] CR2: 00007f3d5864d270 CR3: 0000000003e5c004 CR4: 0000000000770ef0 [ 76.059253] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 76.059628] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.059992] PKRU: 55555554 [ 76.060137] Call Trace: [ 76.060275] [ 76.060409] ? __warn (kernel/panic.c:677) [ 76.060584] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 76.060806] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 76.061003] ? handle_bug (arch/x86/kernel/traps.c:238) [ 76.061191] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 76.061406] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 76.061631] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 76.061852] br_dev_delete (net/bridge/br_if.c:396) [ 76.062046] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 76.062279] cleanup_net (net/core/net_namespace.c:630) [ 76.062490] ? process_one_work (kernel/workqueue.c:2606) [ 76.062710] process_one_work (kernel/workqueue.c:2633) [ 76.062923] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 76.063123] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 76.063360] kthread (kernel/kthread.c:388) [ 76.063532] ? __pfx_kthread (kernel/kthread.c:341) [ 76.063731] ret_from_fork (arch/x86/kernel/process.c:147) [ 76.063924] ? __pfx_kthread (kernel/kthread.c:341) [ 76.064122] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 80.170639] ------------[ cut here ]------------ | [ 80.171098] sysfs group 'bridge' not found for kobject 'br0' | [ 80.171877] WARNING: CPU: 2 PID: 68 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 80.172947] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 80.174855] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 80.176076] Workqueue: netns cleanup_net [ 80.176548] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 80.177008] 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 d0 cd b2 ab 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 d0 cd b2 ab mov $0xffffffffabb2cdd0,%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) ... [ 80.178847] RSP: 0018:ffffb7d180263d70 EFLAGS: 00010286 [ 80.179485] RAX: 0000000000000000 RBX: ffffffffab7472c0 RCX: 00000000ffffdfff [ 80.180291] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 80.180999] RBP: 0000000000000000 R08: ffffffffabf78508 R09: 00000000ffffdfff [ 80.181364] R10: ffffffffabe98520 R11: ffffffffabf48520 R12: ffff8c2f43e1a610 [ 80.181845] R13: ffffb7d180263e08 R14: ffff8c2f43e1ab80 R15: ffff8c2f42a78050 [ 80.182201] FS: 0000000000000000(0000) GS:ffff8c2f7ed00000(0000) knlGS:0000000000000000 [ 80.182609] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 80.182897] CR2: 00007f941e2ed000 CR3: 000000001dc60006 CR4: 0000000000770ef0 [ 80.183438] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 80.184114] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 80.184566] PKRU: 55555554 [ 80.184793] Call Trace: [ 80.185020] [ 80.185248] ? __warn (kernel/panic.c:677) [ 80.185549] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 80.185976] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 80.186406] ? handle_bug (arch/x86/kernel/traps.c:238) [ 80.186788] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 80.187243] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 80.187647] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 80.188102] br_dev_delete (net/bridge/br_if.c:396) [ 80.188518] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 80.188977] cleanup_net (net/core/net_namespace.c:630) [ 80.189413] ? process_one_work (kernel/workqueue.c:2606) [ 80.189794] process_one_work (kernel/workqueue.c:2633) [ 80.190208] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 80.190610] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 80.191153] kthread (kernel/kthread.c:388) [ 80.191517] ? __pfx_kthread (kernel/kthread.c:341) [ 80.191868] ret_from_fork (arch/x86/kernel/process.c:147) [ 80.192226] ? __pfx_kthread (kernel/kthread.c:341) [ 80.192610] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 84.297604] ------------[ cut here ]------------ | [ 84.297875] sysfs group 'bridge' not found for kobject 'br0' | [ 84.298356] WARNING: CPU: 3 PID: 68 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 84.299104] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 84.300568] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 84.301329] Workqueue: netns cleanup_net [ 84.301675] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 84.302158] 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 d0 cd b2 ab 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 d0 cd b2 ab mov $0xffffffffabb2cdd0,%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) ... [ 84.304040] RSP: 0018:ffffb7d180263d70 EFLAGS: 00010286 [ 84.304603] RAX: 0000000000000000 RBX: ffffffffab7472c0 RCX: 00000000ffffdfff [ 84.305300] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 84.306017] RBP: 0000000000000000 R08: ffffffffabf78508 R09: 00000000ffffdfff [ 84.306768] R10: ffffffffabe98520 R11: ffffffffabf48520 R12: ffff8c2f44f7a610 [ 84.307626] R13: ffffb7d180263e08 R14: ffff8c2f44f7ab80 R15: ffff8c2f44cadc50 [ 84.308296] FS: 0000000000000000(0000) GS:ffff8c2f7ed80000(0000) knlGS:0000000000000000 [ 84.308754] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 84.309135] CR2: 00007f77bbbb0000 CR3: 000000001dc60004 CR4: 0000000000770ef0 [ 84.309532] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 84.309915] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 84.310308] PKRU: 55555554 [ 84.310470] Call Trace: [ 84.310689] [ 84.310859] ? __warn (kernel/panic.c:677) [ 84.311200] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 84.311508] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 84.311726] ? handle_bug (arch/x86/kernel/traps.c:238) [ 84.312051] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 84.312447] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 84.312901] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 84.313424] br_dev_delete (net/bridge/br_if.c:396) [ 84.313807] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 84.314288] cleanup_net (net/core/net_namespace.c:630) [ 84.314666] ? process_one_work (kernel/workqueue.c:2606) [ 84.315142] process_one_work (kernel/workqueue.c:2633) [ 84.315608] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 84.315984] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 84.316486] kthread (kernel/kthread.c:388) [ 84.316819] ? __pfx_kthread (kernel/kthread.c:341) [ 84.317242] ret_from_fork (arch/x86/kernel/process.c:147) [ 84.317636] ? __pfx_kthread (kernel/kthread.c:341) [ 84.317998] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 88.551590] ------------[ cut here ]------------ | [ 88.552055] sysfs group 'bridge' not found for kobject 'br0' | [ 88.552659] WARNING: CPU: 2 PID: 68 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 88.553451] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 88.555270] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 88.556313] Workqueue: netns cleanup_net [ 88.556694] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 88.557104] 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 d0 cd b2 ab 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 d0 cd b2 ab mov $0xffffffffabb2cdd0,%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) ... [ 88.558748] RSP: 0018:ffffb7d180263d70 EFLAGS: 00010286 [ 88.559132] RAX: 0000000000000000 RBX: ffffffffab7472c0 RCX: 00000000ffffdfff [ 88.559529] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 88.559935] RBP: 0000000000000000 R08: ffffffffabf78508 R09: 00000000ffffdfff [ 88.560298] R10: ffffffffabe98520 R11: ffffffffabf48520 R12: ffff8c2f41936610 [ 88.560672] R13: ffffb7d180263e08 R14: ffff8c2f41936b80 R15: ffff8c2f43dfc550 [ 88.561038] FS: 0000000000000000(0000) GS:ffff8c2f7ed00000(0000) knlGS:0000000000000000 [ 88.561455] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 88.561750] CR2: 00005563702dadec CR3: 0000000003e8c006 CR4: 0000000000770ef0 [ 88.562115] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 88.562486] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 88.562849] PKRU: 55555554 [ 88.562993] Call Trace: [ 88.563127] [ 88.563246] ? __warn (kernel/panic.c:677) [ 88.563432] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 88.563651] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 88.563848] ? handle_bug (arch/x86/kernel/traps.c:238) [ 88.564037] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 88.564241] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 88.564473] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 88.564694] br_dev_delete (net/bridge/br_if.c:396) [ 88.564889] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 88.565121] cleanup_net (net/core/net_namespace.c:630) [ 88.565314] ? process_one_work (kernel/workqueue.c:2606) [ 88.565547] process_one_work (kernel/workqueue.c:2633) [ 88.565763] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 88.565963] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 88.566189] kthread (kernel/kthread.c:388) [ 88.566368] ? __pfx_kthread (kernel/kthread.c:341) [ 88.566568] ret_from_fork (arch/x86/kernel/process.c:147) [ 88.566762] ? __pfx_kthread (kernel/kthread.c:341) [ 88.566960] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 92.728658] ------------[ cut here ]------------ | [ 92.729177] sysfs group 'bridge' not found for kobject 'br0' | [ 92.729738] WARNING: CPU: 2 PID: 68 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 92.730366] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 92.732097] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 92.733353] Workqueue: netns cleanup_net [ 92.733793] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 92.734290] 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 d0 cd b2 ab 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 d0 cd b2 ab mov $0xffffffffabb2cdd0,%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) ... [ 92.736372] RSP: 0018:ffffb7d180263d70 EFLAGS: 00010286 [ 92.736982] RAX: 0000000000000000 RBX: ffffffffab7472c0 RCX: 00000000ffffdfff [ 92.737766] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 92.738617] RBP: 0000000000000000 R08: ffffffffabf78508 R09: 00000000ffffdfff [ 92.739204] R10: ffffffffabe98520 R11: ffffffffabf48520 R12: ffff8c2f41932610 [ 92.739671] R13: ffffb7d180263e08 R14: ffff8c2f41932b80 R15: ffff8c2f43dfc550 [ 92.740034] FS: 0000000000000000(0000) GS:ffff8c2f7ed00000(0000) knlGS:0000000000000000 [ 92.740503] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 92.740797] CR2: 00007f2994afaa30 CR3: 000000001dc60001 CR4: 0000000000770ef0 [ 92.741161] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 92.741663] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 92.742252] PKRU: 55555554 [ 92.742451] Call Trace: [ 92.742585] [ 92.742753] ? __warn (kernel/panic.c:677) [ 92.742943] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 92.743321] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 92.743601] ? handle_bug (arch/x86/kernel/traps.c:238) [ 92.743963] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 92.744276] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 92.744639] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 92.745036] br_dev_delete (net/bridge/br_if.c:396) [ 92.745354] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 92.745748] cleanup_net (net/core/net_namespace.c:630) [ 92.746061] ? process_one_work (kernel/workqueue.c:2606) [ 92.746487] process_one_work (kernel/workqueue.c:2633) [ 92.746834] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 92.747164] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 92.747614] kthread (kernel/kthread.c:388) [ 92.747881] ? __pfx_kthread (kernel/kthread.c:341) [ 92.748222] ret_from_fork (arch/x86/kernel/process.c:147) [ 92.748611] ? __pfx_kthread (kernel/kthread.c:341) [ 92.748941] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 96.954634] ------------[ cut here ]------------ | [ 96.954982] sysfs group 'bridge' not found for kobject 'br0' | [ 96.955404] WARNING: CPU: 2 PID: 68 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 96.956152] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 96.958030] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 96.959094] Workqueue: netns cleanup_net [ 96.959473] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 96.959981] 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 d0 cd b2 ab 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 d0 cd b2 ab mov $0xffffffffabb2cdd0,%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) ... [ 96.961836] RSP: 0018:ffffb7d180263d70 EFLAGS: 00010286 [ 96.962336] RAX: 0000000000000000 RBX: ffffffffab7472c0 RCX: 00000000ffffdfff [ 96.963031] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 96.963735] RBP: 0000000000000000 R08: ffffffffabf78508 R09: 00000000ffffdfff [ 96.964414] R10: ffffffffabe98520 R11: ffffffffabf48520 R12: ffff8c2f43cc0610 [ 96.965102] R13: ffffb7d180263e08 R14: ffff8c2f43cc0b80 R15: ffff8c2f43dfc550 [ 96.965710] FS: 0000000000000000(0000) GS:ffff8c2f7ed00000(0000) knlGS:0000000000000000 [ 96.966495] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 96.967005] CR2: 00007f3b6043d000 CR3: 000000001dc60005 CR4: 0000000000770ef0 [ 96.967701] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 96.968368] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 96.968991] PKRU: 55555554 [ 96.969286] Call Trace: [ 96.969528] [ 96.969742] ? __warn (kernel/panic.c:677) [ 96.970059] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 96.970397] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 96.970595] ? handle_bug (arch/x86/kernel/traps.c:238) [ 96.970822] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 96.971061] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 96.971289] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 96.971521] br_dev_delete (net/bridge/br_if.c:396) [ 96.971716] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 96.971950] cleanup_net (net/core/net_namespace.c:630) [ 96.972144] ? process_one_work (kernel/workqueue.c:2606) [ 96.972376] process_one_work (kernel/workqueue.c:2633) [ 96.972591] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 96.972790] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 96.973016] kthread (kernel/kthread.c:388) [ 96.973185] ? __pfx_kthread (kernel/kthread.c:341) [ 96.973396] ret_from_fork (arch/x86/kernel/process.c:147) [ 96.973589] ? __pfx_kthread (kernel/kthread.c:341) [ 96.973788] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 101.361589] ------------[ cut here ]------------ | [ 101.361892] sysfs group 'bridge' not found for kobject 'br0' | [ 101.362268] WARNING: CPU: 0 PID: 68 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 101.362733] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 101.363840] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 101.364477] Workqueue: netns cleanup_net [ 101.364772] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 101.365071] 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 d0 cd b2 ab 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 d0 cd b2 ab mov $0xffffffffabb2cdd0,%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) ... [ 101.366032] RSP: 0018:ffffb7d180263d70 EFLAGS: 00010286 [ 101.366358] RAX: 0000000000000000 RBX: ffffffffab7472c0 RCX: 00000000ffffdfff [ 101.366775] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 101.367185] RBP: 0000000000000000 R08: ffffffffabf78508 R09: 00000000ffffdfff [ 101.367595] R10: ffffffffabe98520 R11: ffffffffabf48520 R12: ffff8c2f43e1e610 [ 101.368013] R13: ffffb7d180263e08 R14: ffff8c2f43e1eb80 R15: ffff8c2f43df8050 [ 101.368439] FS: 0000000000000000(0000) GS:ffff8c2f7ec00000(0000) knlGS:0000000000000000 [ 101.368890] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 101.369217] CR2: 00007fc4d2c54000 CR3: 000000001dc60004 CR4: 0000000000770ef0 [ 101.369626] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 101.370050] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 101.370479] PKRU: 55555554 [ 101.370674] Call Trace: [ 101.370855] [ 101.371032] ? __warn (kernel/panic.c:677) [ 101.371253] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 101.371504] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 101.371760] ? handle_bug (arch/x86/kernel/traps.c:238) [ 101.372002] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 101.372243] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 101.372521] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 101.372801] br_dev_delete (net/bridge/br_if.c:396) [ 101.373047] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 101.373318] cleanup_net (net/core/net_namespace.c:630) [ 101.373553] ? process_one_work (kernel/workqueue.c:2606) [ 101.373825] process_one_work (kernel/workqueue.c:2633) [ 101.374102] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 101.374351] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 101.374601] kthread (kernel/kthread.c:388) [ 101.374819] ? __pfx_kthread (kernel/kthread.c:341) [ 101.375068] ret_from_fork (arch/x86/kernel/process.c:147) [ 101.375292] ? __pfx_kthread (kernel/kthread.c:341) [ 101.375527] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 105.518597] ------------[ cut here ]------------ | [ 105.518899] sysfs group 'bridge' not found for kobject 'br0' | [ 105.519363] WARNING: CPU: 2 PID: 68 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 105.519965] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 105.521544] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 105.522619] Workqueue: netns cleanup_net [ 105.522982] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 105.523464] 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 d0 cd b2 ab 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 d0 cd b2 ab mov $0xffffffffabb2cdd0,%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) ... [ 105.525135] RSP: 0018:ffffb7d180263d70 EFLAGS: 00010286 [ 105.525626] RAX: 0000000000000000 RBX: ffffffffab7472c0 RCX: 00000000ffffdfff [ 105.526262] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 105.526787] RBP: 0000000000000000 R08: ffffffffabf78508 R09: 00000000ffffdfff [ 105.527157] R10: ffffffffabe98520 R11: ffffffffabf48520 R12: ffff8c2f43fe2610 [ 105.527583] R13: ffffb7d180263e08 R14: ffff8c2f43fe2b80 R15: ffff8c2f44ca9750 [ 105.527974] FS: 0000000000000000(0000) GS:ffff8c2f7ed00000(0000) knlGS:0000000000000000 [ 105.528391] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 105.528685] CR2: 00007fcfe9e8b000 CR3: 000000001dc60005 CR4: 0000000000770ef0 [ 105.529130] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 105.529720] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 105.530109] PKRU: 55555554 [ 105.530362] Call Trace: [ 105.530568] [ 105.530773] ? __warn (kernel/panic.c:677) [ 105.531090] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 105.531506] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 105.531858] ? handle_bug (arch/x86/kernel/traps.c:238) [ 105.532202] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 105.532590] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 105.532977] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 105.533374] br_dev_delete (net/bridge/br_if.c:396) [ 105.533715] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 105.534129] cleanup_net (net/core/net_namespace.c:630) [ 105.534505] ? process_one_work (kernel/workqueue.c:2606) [ 105.534901] process_one_work (kernel/workqueue.c:2633) [ 105.535287] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 105.535676] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 105.536072] kthread (kernel/kthread.c:388) [ 105.536367] ? __pfx_kthread (kernel/kthread.c:341) [ 105.536676] ret_from_fork (arch/x86/kernel/process.c:147) [ 105.537020] ? __pfx_kthread (kernel/kthread.c:341) [ 105.537350] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 109.819614] ------------[ cut here ]------------ | [ 109.819896] sysfs group 'bridge' not found for kobject 'br0' | [ 109.820366] WARNING: CPU: 2 PID: 68 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 109.821188] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 109.823183] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 109.824318] Workqueue: netns cleanup_net [ 109.824706] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 109.825207] 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 d0 cd b2 ab 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 d0 cd b2 ab mov $0xffffffffabb2cdd0,%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) ... [ 109.826975] RSP: 0018:ffffb7d180263d70 EFLAGS: 00010286 [ 109.827543] RAX: 0000000000000000 RBX: ffffffffab7472c0 RCX: 00000000ffffdfff [ 109.828172] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 109.828834] RBP: 0000000000000000 R08: ffffffffabf78508 R09: 00000000ffffdfff [ 109.829446] R10: ffffffffabe98520 R11: ffffffffabf48520 R12: ffff8c2f43dc8610 [ 109.830167] R13: ffffb7d180263e08 R14: ffff8c2f43dc8b80 R15: ffff8c2f43dfae50 [ 109.830863] FS: 0000000000000000(0000) GS:ffff8c2f7ed00000(0000) knlGS:0000000000000000 [ 109.831560] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 109.832147] CR2: 00005563702dadec CR3: 000000000276e001 CR4: 0000000000770ef0 [ 109.832706] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 109.833116] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 109.833517] PKRU: 55555554 [ 109.833662] Call Trace: [ 109.833796] [ 109.833913] ? __warn (kernel/panic.c:677) [ 109.834121] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 109.834353] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 109.834551] ? handle_bug (arch/x86/kernel/traps.c:238) [ 109.834740] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 109.834941] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 109.835180] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 109.835429] br_dev_delete (net/bridge/br_if.c:396) [ 109.835624] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 109.835857] cleanup_net (net/core/net_namespace.c:630) [ 109.836050] ? process_one_work (kernel/workqueue.c:2606) [ 109.836268] process_one_work (kernel/workqueue.c:2633) [ 109.836522] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 109.836722] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 109.836944] kthread (kernel/kthread.c:388) [ 109.837115] ? __pfx_kthread (kernel/kthread.c:341) [ 109.837322] ret_from_fork (arch/x86/kernel/process.c:147) [ 109.837554] ? __pfx_kthread (kernel/kthread.c:341) [ 109.837751] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 114.095600] ------------[ cut here ]------------ | [ 114.095955] kobject: '' (000000007f9c177c): is not initialized, yet kobject_put() is being called. | [ 114.096455] WARNING: CPU: 2 PID: 68 at lib/kobject.c:730 kobject_put (lib/kobject.c:730 (discriminator 1)) | [ 114.096831] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 114.097997] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 114.098785] Workqueue: netns cleanup_net [ 114.099123] RIP: 0010:kobject_put (lib/kobject.c:730 (discriminator 1)) [ 114.099583] Code: 89 ef e8 fe ad 4f ff 4d 85 e4 74 c0 4c 89 e5 f6 45 3c 01 75 a3 90 48 8b 75 00 48 89 ea 48 c7 c7 88 ce ba ab e8 dc 42 2a ff 90 <0f> 0b 90 90 eb 88 c3 cc cc cc cc 5b be 03 00 00 00 5d 41 5c 41 5d All code ======== 0: 89 ef mov %ebp,%edi 2: e8 fe ad 4f ff call 0xffffffffff4fae05 7: 4d 85 e4 test %r12,%r12 a: 74 c0 je 0xffffffffffffffcc c: 4c 89 e5 mov %r12,%rbp f: f6 45 3c 01 testb $0x1,0x3c(%rbp) 13: 75 a3 jne 0xffffffffffffffb8 15: 90 nop 16: 48 8b 75 00 mov 0x0(%rbp),%rsi 1a: 48 89 ea mov %rbp,%rdx 1d: 48 c7 c7 88 ce ba ab mov $0xffffffffabbace88,%rdi 24: e8 dc 42 2a ff call 0xffffffffff2a4305 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: eb 88 jmp 0xffffffffffffffb8 30: c3 ret 31: cc int3 32: cc int3 33: cc int3 34: cc int3 35: 5b pop %rbx 36: be 03 00 00 00 mov $0x3,%esi 3b: 5d pop %rbp 3c: 41 5c pop %r12 3e: 41 5d pop %r13 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: eb 88 jmp 0xffffffffffffff8e 6: c3 ret 7: cc int3 8: cc int3 9: cc int3 a: cc int3 b: 5b pop %rbx c: be 03 00 00 00 mov $0x3,%esi 11: 5d pop %rbp 12: 41 5c pop %r12 14: 41 5d pop %r13 [ 114.101347] RSP: 0018:ffffb7d180263d50 EFLAGS: 00010286 [ 114.101872] RAX: 0000000000000000 RBX: 00000000ffffffff RCX: 00000000ffffdfff [ 114.102526] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 114.103226] RBP: ffff8c2f44e5c300 R08: ffffffffabf78508 R09: 00000000ffffdfff [ 114.103931] R10: ffffffffabe98520 R11: ffffffffabf48520 R12: ffff8c2f43f4e000 [ 114.104606] R13: ffffb7d180263e08 R14: ffff8c2f43f4eb80 R15: ffff8c2f43dfdc50 [ 114.105259] FS: 0000000000000000(0000) GS:ffff8c2f7ed00000(0000) knlGS:0000000000000000 [ 114.105930] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 114.106452] CR2: 00007f2994afaa30 CR3: 000000001dc60004 CR4: 0000000000770ef0 [ 114.107039] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 114.107730] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 114.108184] PKRU: 55555554 [ 114.108384] Call Trace: [ 114.108521] [ 114.108677] ? __warn (kernel/panic.c:677) [ 114.108930] ? kobject_put (lib/kobject.c:730 (discriminator 1)) [ 114.109160] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 114.109527] ? handle_bug (arch/x86/kernel/traps.c:238) [ 114.109717] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 114.109920] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 114.110143] ? kobject_put (lib/kobject.c:730 (discriminator 1)) [ 114.110335] br_sysfs_delbr (net/bridge/br_sysfs_br.c:1086) [ 114.110555] br_dev_delete (net/bridge/br_if.c:396) [ 114.110838] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 114.111232] cleanup_net (net/core/net_namespace.c:630) [ 114.111463] ? process_one_work (kernel/workqueue.c:2606) [ 114.111736] process_one_work (kernel/workqueue.c:2633) [ 114.112090] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 114.112427] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 114.112872] kthread (kernel/kthread.c:388) [ 114.113178] ? __pfx_kthread (kernel/kthread.c:341) [ 114.113563] ret_from_fork (arch/x86/kernel/process.c:147) [ 114.113895] ? __pfx_kthread (kernel/kthread.c:341) [ 114.114282] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 114.118946] ------------[ cut here ]------------ | [ 114.119335] sysfs group 'bridge' not found for kobject 'br0' | [ 114.119856] WARNING: CPU: 2 PID: 68 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 114.120558] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 114.121698] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 114.122311] Workqueue: netns cleanup_net [ 114.122529] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 114.122780] 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 d0 cd b2 ab 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 d0 cd b2 ab mov $0xffffffffabb2cdd0,%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) ... [ 114.123765] RSP: 0018:ffffb7d180263d70 EFLAGS: 00010286 [ 114.124043] RAX: 0000000000000000 RBX: ffffffffab7472c0 RCX: 00000000ffffdfff [ 114.124455] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 114.124823] RBP: 0000000000000000 R08: ffffffffabf78508 R09: 00000000ffffdfff [ 114.125186] R10: ffffffffabe98520 R11: ffffffffabf48520 R12: ffff8c2f43f4e610 [ 114.125565] R13: ffffb7d180263e08 R14: ffff8c2f43f4eb80 R15: ffff8c2f43dfdc50 [ 114.125934] FS: 0000000000000000(0000) GS:ffff8c2f7ed00000(0000) knlGS:0000000000000000 [ 114.126359] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 114.126662] CR2: 00007f2994afaa30 CR3: 000000001dc60004 CR4: 0000000000770ef0 [ 114.127025] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 114.127408] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 114.127775] PKRU: 55555554 [ 114.127923] Call Trace: [ 114.128056] [ 114.128180] ? __warn (kernel/panic.c:677) [ 114.128362] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 114.128587] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 114.128782] ? handle_bug (arch/x86/kernel/traps.c:238) [ 114.128969] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 114.129173] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 114.129405] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 114.129630] br_dev_delete (net/bridge/br_if.c:396) [ 114.129826] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 114.130058] cleanup_net (net/core/net_namespace.c:630) [ 114.130253] ? process_one_work (kernel/workqueue.c:2606) [ 114.130479] process_one_work (kernel/workqueue.c:2633) [ 114.130694] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 114.130892] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 114.131114] kthread (kernel/kthread.c:388) [ 114.131284] ? __pfx_kthread (kernel/kthread.c:341) [ 114.131490] ret_from_fork (arch/x86/kernel/process.c:147) [ 114.131682] ? __pfx_kthread (kernel/kthread.c:341) [ 114.131884] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 118.234591] ------------[ cut here ]------------ | [ 118.234844] sysfs group 'bridge' not found for kobject 'br0' | [ 118.235152] WARNING: CPU: 0 PID: 68 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 118.235582] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 118.236608] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 118.237243] Workqueue: netns cleanup_net [ 118.237480] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 118.237752] 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 d0 cd b2 ab 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 d0 cd b2 ab mov $0xffffffffabb2cdd0,%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) ... [ 118.238701] RSP: 0018:ffffb7d180263d70 EFLAGS: 00010286 [ 118.239000] RAX: 0000000000000000 RBX: ffffffffab7472c0 RCX: 00000000ffffdfff [ 118.239398] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 118.239780] RBP: 0000000000000000 R08: ffffffffabf78508 R09: 00000000ffffdfff [ 118.240154] R10: ffffffffabe98520 R11: ffffffffabf48520 R12: ffff8c2f43e1a610 [ 118.240545] R13: ffffb7d180263e08 R14: ffff8c2f43e1ab80 R15: ffff8c2f43dfdc50 [ 118.240957] FS: 0000000000000000(0000) GS:ffff8c2f7ec00000(0000) knlGS:0000000000000000 [ 118.241399] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 118.241712] CR2: 0000556371d6a0f8 CR3: 000000001dc60001 CR4: 0000000000770ef0 [ 118.242101] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 118.242522] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 118.242907] PKRU: 55555554 [ 118.243074] Call Trace: [ 118.243245] [ 118.243395] ? __warn (kernel/panic.c:677) [ 118.243603] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 118.243844] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 118.244052] ? handle_bug (arch/x86/kernel/traps.c:238) [ 118.244260] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 118.244501] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 118.244750] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 118.244981] br_dev_delete (net/bridge/br_if.c:396) [ 118.245202] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 118.245466] cleanup_net (net/core/net_namespace.c:630) [ 118.245682] ? process_one_work (kernel/workqueue.c:2606) [ 118.245913] process_one_work (kernel/workqueue.c:2633) [ 118.246148] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 118.246384] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 118.246634] kthread (kernel/kthread.c:388) [ 118.246818] ? __pfx_kthread (kernel/kthread.c:341) [ 118.247037] ret_from_fork (arch/x86/kernel/process.c:147) [ 118.247269] ? __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 kobject_put:br_sysfs_delbr:br_dev_delete:br_net_exit_batch_rtnl sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net sysfs_remove_group:br_dev_delete:br_net_exit_batch_rtnl:cleanup_net