====================================== | # TEST: IPv4 over geneve4: PMTU exceptions [ OK ] | [ 36.384821] ------------[ cut here ]------------ | [ 36.385141] WARNING: CPU: 1 PID: 11 at drivers/net/geneve.c:1914 geneve_exit_batch_rtnl (drivers/net/geneve.c:1914 (discriminator 1)) geneve | [ 36.385657] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 36.386613] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 36.387227] Workqueue: netns cleanup_net [ 36.387440] RIP: 0010:geneve_exit_batch_rtnl (drivers/net/geneve.c:1914 (discriminator 1)) geneve [ 36.387762] 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 [ 36.388800] RSP: 0018:ffff9fd440063db0 EFLAGS: 00010206 [ 36.389324] RAX: ffff8b0d824743f0 RBX: ffff8b0d848e0000 RCX: 0000000000000000 [ 36.389975] RDX: ffff8b0d84ae0008 RSI: ffffffff9737b8c0 RDI: ffff8b0d81322be0 [ 36.390720] RBP: ffff8b0d824743e0 R08: 0000000000000001 R09: 0000000000000001 [ 36.391337] R10: 0000000000000004 R11: 0000000000000001 R12: ffff9fd440063e08 [ 36.391931] R13: ffff9fd440063df8 R14: ffff8b0d82474390 R15: ffff8b0d82474390 [ 36.392544] FS: 0000000000000000(0000) GS:ffff8b0dbec80000(0000) knlGS:0000000000000000 [ 36.393065] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.393423] CR2: 00007f11b56b2270 CR3: 00000000049ae001 CR4: 0000000000770ef0 [ 36.393966] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.394332] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.394831] PKRU: 55555554 [ 36.395009] Call Trace: [ 36.395142] <TASK> [ 36.395259] ? __warn (kernel/panic.c:677) [ 36.395435] ? geneve_exit_batch_rtnl (drivers/net/geneve.c:1914 (discriminator 1)) geneve [ 36.395857] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 36.396192] ? handle_bug (arch/x86/kernel/traps.c:238) [ 36.396380] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 36.396681] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 36.397043] ? geneve_exit_batch_rtnl (drivers/net/geneve.c:1914 (discriminator 1)) geneve [ 36.397585] cleanup_net (net/core/net_namespace.c:630) [ 36.397940] ? process_one_work (kernel/workqueue.c:2606) [ 36.398326] process_one_work (kernel/workqueue.c:2633) [ 36.398730] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 36.399075] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 36.399461] kthread (kernel/kthread.c:388) [ 36.399805] ? __pfx_kthread (kernel/kthread.c:341) [ 36.400175] ret_from_fork (arch/x86/kernel/process.c:147) [ 36.400500] ? __pfx_kthread (kernel/kthread.c:341) [ 36.400893] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 56.940865] ------------[ cut here ]------------ | [ 56.941220] refcount_t: underflow; use-after-free. | [ 56.941510] WARNING: CPU: 1 PID: 11 at lib/refcount.c:28 refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) | [ 56.941985] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 56.942990] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 56.943598] Workqueue: netns cleanup_net [ 56.943820] RIP: 0010:refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 56.944111] 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 f3 96 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 f3 96 mov $0xffffffff96f337b8,%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 [ 56.945070] RSP: 0018:ffff9fd440063d78 EFLAGS: 00010286 [ 56.945343] RAX: 0000000000000000 RBX: ffff8b0d8354c000 RCX: 00000000ffffdfff [ 56.945716] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 56.946084] RBP: ffff8b0d8354c610 R08: ffffffff97378508 R09: 00000000ffffdfff [ 56.946449] R10: ffffffff97298520 R11: ffffffff97348520 R12: ffff8b0d8354c000 [ 56.946827] R13: ffff9fd440063e08 R14: ffff8b0d8354cb80 R15: ffff8b0d848e5c50 [ 56.947207] FS: 0000000000000000(0000) GS:ffff8b0dbec80000(0000) knlGS:0000000000000000 [ 56.947620] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.947931] CR2: 00007f2739dd0000 CR3: 0000000027460006 CR4: 0000000000770ef0 [ 56.948304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.948681] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.949054] PKRU: 55555554 [ 56.949199] Call Trace: [ 56.949332] <TASK> [ 56.949451] ? __warn (kernel/panic.c:677) [ 56.949627] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 56.949878] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 56.950077] ? handle_bug (arch/x86/kernel/traps.c:238) [ 56.950266] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 56.950477] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 56.950712] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 56.950960] ? refcount_warn_saturate (lib/refcount.c:28 (discriminator 3)) [ 56.951202] br_sysfs_delbr (net/bridge/br_sysfs_br.c:1086) [ 56.951405] br_dev_delete (net/bridge/br_if.c:396) [ 56.951603] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 56.951846] cleanup_net (net/core/net_namespace.c:630) [ 56.952042] ? process_one_work (kernel/workqueue.c:2606) [ 56.952262] process_one_work (kernel/workqueue.c:2633) [ 56.952481] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 56.952689] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 56.952916] kthread (kernel/kthread.c:388) [ 56.953092] ? __pfx_kthread (kernel/kthread.c:341) [ 56.953303] ret_from_fork (arch/x86/kernel/process.c:147) [ 56.953496] ? __pfx_kthread (kernel/kthread.c:341) [ 56.953705] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 56.956281] ------------[ cut here ]------------ | [ 56.956571] sysfs group 'bridge' not found for kobject 'br0' | [ 56.956994] WARNING: CPU: 1 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 56.957451] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 56.958715] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 56.959494] Workqueue: netns cleanup_net [ 56.959785] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 56.960179] 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 f2 96 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 f2 96 mov $0xffffffff96f2cda0,%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) ... [ 56.961383] RSP: 0018:ffff9fd440063d70 EFLAGS: 00010286 [ 56.961809] RAX: 0000000000000000 RBX: ffffffff96b472c0 RCX: 00000000ffffdfff [ 56.962394] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 56.962997] RBP: 0000000000000000 R08: ffffffff97378508 R09: 00000000ffffdfff [ 56.963552] R10: ffffffff97298520 R11: ffffffff97348520 R12: ffff8b0d8354c610 [ 56.964161] R13: ffff9fd440063e08 R14: ffff8b0d8354cb80 R15: ffff8b0d848e5c50 [ 56.964748] FS: 0000000000000000(0000) GS:ffff8b0dbec80000(0000) knlGS:0000000000000000 [ 56.965425] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.965912] CR2: 00007f2739dd0000 CR3: 0000000027460006 CR4: 0000000000770ef0 [ 56.966517] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.967124] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.967719] PKRU: 55555554 [ 56.967956] Call Trace: [ 56.968155] <TASK> [ 56.968272] ? __warn (kernel/panic.c:677) [ 56.968448] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 56.968678] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 56.968941] ? handle_bug (arch/x86/kernel/traps.c:238) [ 56.969128] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 56.969340] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 56.969564] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 56.969792] br_dev_delete (net/bridge/br_if.c:396) [ 56.969990] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 56.970241] cleanup_net (net/core/net_namespace.c:630) [ 56.970522] ? process_one_work (kernel/workqueue.c:2606) [ 56.970883] process_one_work (kernel/workqueue.c:2633) [ 56.971111] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 56.971311] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 56.971650] kthread (kernel/kthread.c:388) [ 56.971879] ? __pfx_kthread (kernel/kthread.c:341) [ 56.972198] ret_from_fork (arch/x86/kernel/process.c:147) [ 56.972493] ? __pfx_kthread (kernel/kthread.c:341) [ 56.972800] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 61.026870] ------------[ cut here ]------------ | [ 61.027137] sysfs group 'bridge' not found for kobject 'br0' | [ 61.027474] WARNING: CPU: 0 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 61.027931] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 61.028973] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 61.029570] Workqueue: netns cleanup_net [ 61.029806] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 61.030088] 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 f2 96 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 f2 96 mov $0xffffffff96f2cda0,%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) ... [ 61.031046] RSP: 0018:ffff9fd440063d70 EFLAGS: 00010286 [ 61.031348] RAX: 0000000000000000 RBX: ffffffff96b472c0 RCX: 00000000ffffdfff [ 61.031747] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 61.032135] RBP: 0000000000000000 R08: ffffffff97378508 R09: 00000000ffffdfff [ 61.032510] R10: ffffffff97298520 R11: ffffffff97348520 R12: ffff8b0d823fc610 [ 61.032907] R13: ffff9fd440063e08 R14: ffff8b0d823fcb80 R15: ffff8b0d83611750 [ 61.033334] FS: 0000000000000000(0000) GS:ffff8b0dbec00000(0000) knlGS:0000000000000000 [ 61.033801] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.034118] CR2: 00007f800f84aa30 CR3: 0000000027460002 CR4: 0000000000770ef0 [ 61.034504] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.034919] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.035312] PKRU: 55555554 [ 61.035492] Call Trace: [ 61.035654] <TASK> [ 61.035790] ? __warn (kernel/panic.c:677) [ 61.035989] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 61.036231] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 61.036476] ? handle_bug (arch/x86/kernel/traps.c:238) [ 61.036693] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 61.036916] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 61.037174] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 61.037396] br_dev_delete (net/bridge/br_if.c:396) [ 61.037615] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 61.037880] cleanup_net (net/core/net_namespace.c:630) [ 61.038078] ? process_one_work (kernel/workqueue.c:2606) [ 61.038297] process_one_work (kernel/workqueue.c:2633) [ 61.038510] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 61.038717] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 61.038941] kthread (kernel/kthread.c:388) [ 61.039113] ? __pfx_kthread (kernel/kthread.c:341) [ 61.039311] ret_from_fork (arch/x86/kernel/process.c:147) [ 61.039503] ? __pfx_kthread (kernel/kthread.c:341) [ 61.039706] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 64.971851] ------------[ cut here ]------------ | [ 64.972119] sysfs group 'bridge' not found for kobject 'br0' | [ 64.972455] WARNING: CPU: 0 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 64.972913] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 64.973955] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 64.974594] Workqueue: netns cleanup_net [ 64.974846] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 64.975131] 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 f2 96 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 f2 96 mov $0xffffffff96f2cda0,%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) ... [ 64.976098] RSP: 0018:ffff9fd440063d70 EFLAGS: 00010286 [ 64.976381] RAX: 0000000000000000 RBX: ffffffff96b472c0 RCX: 00000000ffffdfff [ 64.976775] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 64.977196] RBP: 0000000000000000 R08: ffffffff97378508 R09: 00000000ffffdfff [ 64.977580] R10: ffffffff97298520 R11: ffffffff97348520 R12: ffff8b0d81932610 [ 64.977969] R13: ffff9fd440063e08 R14: ffff8b0d81932b80 R15: ffff8b0d848e1750 [ 64.978352] FS: 0000000000000000(0000) GS:ffff8b0dbec00000(0000) knlGS:0000000000000000 [ 64.978788] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 64.979123] CR2: 00007f09d663f30d CR3: 0000000027460005 CR4: 0000000000770ef0 [ 64.979507] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 64.979902] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 64.980289] PKRU: 55555554 [ 64.980458] Call Trace: [ 64.980607] <TASK> [ 64.980749] ? __warn (kernel/panic.c:677) [ 64.980952] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 64.981222] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 64.981438] ? handle_bug (arch/x86/kernel/traps.c:238) [ 64.981652] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 64.981888] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 64.982138] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 64.982387] br_dev_delete (net/bridge/br_if.c:396) [ 64.982603] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 64.982850] cleanup_net (net/core/net_namespace.c:630) [ 64.983069] ? process_one_work (kernel/workqueue.c:2606) [ 64.983323] process_one_work (kernel/workqueue.c:2633) [ 64.983591] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 64.983815] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 64.984059] kthread (kernel/kthread.c:388) [ 64.984267] ? __pfx_kthread (kernel/kthread.c:341) [ 64.984467] ret_from_fork (arch/x86/kernel/process.c:147) [ 64.984665] ? __pfx_kthread (kernel/kthread.c:341) [ 64.984885] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 69.204847] ------------[ cut here ]------------ | [ 69.205232] sysfs group 'bridge' not found for kobject 'br0' | [ 69.205658] WARNING: CPU: 3 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 69.206489] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 69.208287] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 69.209478] Workqueue: netns cleanup_net [ 69.209913] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 69.210428] 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 f2 96 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 f2 96 mov $0xffffffff96f2cda0,%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) ... [ 69.212421] RSP: 0018:ffff9fd440063d70 EFLAGS: 00010286 [ 69.213007] RAX: 0000000000000000 RBX: ffffffff96b472c0 RCX: 00000000ffffdfff [ 69.213813] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 69.214663] RBP: 0000000000000000 R08: ffffffff97378508 R09: 00000000ffffdfff [ 69.215203] R10: ffffffff97298520 R11: ffffffff97348520 R12: ffff8b0d8274e610 [ 69.215691] R13: ffff9fd440063e08 R14: ffff8b0d8274eb80 R15: ffff8b0d83612e50 [ 69.216055] FS: 0000000000000000(0000) GS:ffff8b0dbed80000(0000) knlGS:0000000000000000 [ 69.216471] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.216818] CR2: 00007f800f84aa30 CR3: 0000000027460002 CR4: 0000000000770ef0 [ 69.217455] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.217900] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 69.218527] PKRU: 55555554 [ 69.218808] Call Trace: [ 69.219073] <TASK> [ 69.219284] ? __warn (kernel/panic.c:677) [ 69.219637] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 69.220058] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 69.220443] ? handle_bug (arch/x86/kernel/traps.c:238) [ 69.220850] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 69.221249] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 69.221692] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 69.222132] br_dev_delete (net/bridge/br_if.c:396) [ 69.222488] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 69.222946] cleanup_net (net/core/net_namespace.c:630) [ 69.223313] ? process_one_work (kernel/workqueue.c:2606) [ 69.223768] process_one_work (kernel/workqueue.c:2633) [ 69.224202] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 69.224576] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 69.225036] kthread (kernel/kthread.c:388) [ 69.225332] ? __pfx_kthread (kernel/kthread.c:341) [ 69.225728] ret_from_fork (arch/x86/kernel/process.c:147) [ 69.226084] ? __pfx_kthread (kernel/kthread.c:341) [ 69.226474] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 73.355866] ------------[ cut here ]------------ | [ 73.356135] sysfs group 'bridge' not found for kobject 'br0' | [ 73.356483] WARNING: CPU: 0 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 73.356945] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 73.357995] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 73.358620] Workqueue: netns cleanup_net [ 73.358875] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 73.359168] 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 f2 96 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 f2 96 mov $0xffffffff96f2cda0,%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) ... [ 73.360171] RSP: 0018:ffff9fd440063d70 EFLAGS: 00010286 [ 73.360496] RAX: 0000000000000000 RBX: ffffffff96b472c0 RCX: 00000000ffffdfff [ 73.360921] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 73.361335] RBP: 0000000000000000 R08: ffffffff97378508 R09: 00000000ffffdfff [ 73.361739] R10: ffffffff97298520 R11: ffffffff97348520 R12: ffff8b0d81936610 [ 73.362139] R13: ffff9fd440063e08 R14: ffff8b0d81936b80 R15: ffff8b0d84a90050 [ 73.362556] FS: 0000000000000000(0000) GS:ffff8b0dbec00000(0000) knlGS:0000000000000000 [ 73.363002] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.363325] CR2: 00007f800f84aa30 CR3: 0000000027460004 CR4: 0000000000770ef0 [ 73.363737] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.364153] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.364552] PKRU: 55555554 [ 73.364729] Call Trace: [ 73.364908] <TASK> [ 73.365080] ? __warn (kernel/panic.c:677) [ 73.365283] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 73.365543] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 73.365790] ? handle_bug (arch/x86/kernel/traps.c:238) [ 73.366022] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 73.366258] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 73.366506] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 73.366795] br_dev_delete (net/bridge/br_if.c:396) [ 73.367039] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 73.367328] cleanup_net (net/core/net_namespace.c:630) [ 73.367555] ? process_one_work (kernel/workqueue.c:2606) [ 73.367831] process_one_work (kernel/workqueue.c:2633) [ 73.368130] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 73.368364] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 73.368628] kthread (kernel/kthread.c:388) [ 73.368881] ? __pfx_kthread (kernel/kthread.c:341) [ 73.369149] ret_from_fork (arch/x86/kernel/process.c:147) [ 73.369383] ? __pfx_kthread (kernel/kthread.c:341) [ 73.369621] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 77.637909] ------------[ cut here ]------------ | [ 77.638171] sysfs group 'bridge' not found for kobject 'br0' | [ 77.638480] WARNING: CPU: 3 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 77.638905] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 77.640058] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 77.641077] Workqueue: netns cleanup_net [ 77.641510] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 77.641973] 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 f2 96 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 f2 96 mov $0xffffffff96f2cda0,%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) ... [ 77.643809] RSP: 0018:ffff9fd440063d70 EFLAGS: 00010286 [ 77.644337] RAX: 0000000000000000 RBX: ffffffff96b472c0 RCX: 00000000ffffdfff [ 77.644967] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 77.645694] RBP: 0000000000000000 R08: ffffffff97378508 R09: 00000000ffffdfff [ 77.646381] R10: ffffffff97298520 R11: ffffffff97348520 R12: ffff8b0d82b18610 [ 77.647077] R13: ffff9fd440063e08 R14: ffff8b0d82b18b80 R15: ffff8b0d83614550 [ 77.647814] FS: 0000000000000000(0000) GS:ffff8b0dbed80000(0000) knlGS:0000000000000000 [ 77.648487] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.648996] CR2: 00007f60bfb29270 CR3: 000000000355a002 CR4: 0000000000770ef0 [ 77.649703] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.650343] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.650978] PKRU: 55555554 [ 77.651223] Call Trace: [ 77.651449] <TASK> [ 77.651693] ? __warn (kernel/panic.c:677) [ 77.651990] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 77.652425] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 77.652688] ? handle_bug (arch/x86/kernel/traps.c:238) [ 77.652877] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 77.653118] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 77.653378] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 77.653601] br_dev_delete (net/bridge/br_if.c:396) [ 77.653800] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 77.654032] cleanup_net (net/core/net_namespace.c:630) [ 77.654226] ? process_one_work (kernel/workqueue.c:2606) [ 77.654445] process_one_work (kernel/workqueue.c:2633) [ 77.654664] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 77.654866] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 77.655090] kthread (kernel/kthread.c:388) [ 77.655261] ? __pfx_kthread (kernel/kthread.c:341) [ 77.655459] ret_from_fork (arch/x86/kernel/process.c:147) [ 77.655658] ? __pfx_kthread (kernel/kthread.c:341) [ 77.655857] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 81.858918] ------------[ cut here ]------------ | [ 81.859557] sysfs group 'bridge' not found for kobject 'br0' | [ 81.860337] WARNING: CPU: 3 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 81.861440] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 81.863323] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 81.864244] Workqueue: netns cleanup_net [ 81.864755] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 81.865189] 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 f2 96 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 f2 96 mov $0xffffffff96f2cda0,%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) ... [ 81.867587] RSP: 0018:ffff9fd440063d70 EFLAGS: 00010286 [ 81.868280] RAX: 0000000000000000 RBX: ffffffff96b472c0 RCX: 00000000ffffdfff [ 81.869200] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 81.870143] RBP: 0000000000000000 R08: ffffffff97378508 R09: 00000000ffffdfff [ 81.871124] R10: ffffffff97298520 R11: ffffffff97348520 R12: ffff8b0d84872610 [ 81.871986] R13: ffff9fd440063e08 R14: ffff8b0d84872b80 R15: ffff8b0d848e2e50 [ 81.872875] FS: 0000000000000000(0000) GS:ffff8b0dbed80000(0000) knlGS:0000000000000000 [ 81.873805] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 81.874438] CR2: 00007f254bea6000 CR3: 0000000027460004 CR4: 0000000000770ef0 [ 81.875080] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 81.875599] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 81.876070] PKRU: 55555554 [ 81.876214] Call Trace: [ 81.876347] <TASK> [ 81.876466] ? __warn (kernel/panic.c:677) [ 81.876668] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 81.877007] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 81.877309] ? handle_bug (arch/x86/kernel/traps.c:238) [ 81.877494] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 81.877808] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 81.878221] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 81.878637] br_dev_delete (net/bridge/br_if.c:396) [ 81.878996] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 81.879414] cleanup_net (net/core/net_namespace.c:630) [ 81.879766] ? process_one_work (kernel/workqueue.c:2606) [ 81.880187] process_one_work (kernel/workqueue.c:2633) [ 81.880612] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 81.880988] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 81.881402] kthread (kernel/kthread.c:388) [ 81.881732] ? __pfx_kthread (kernel/kthread.c:341) [ 81.882088] ret_from_fork (arch/x86/kernel/process.c:147) [ 81.882452] ? __pfx_kthread (kernel/kthread.c:341) [ 81.882841] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 85.932828] ------------[ cut here ]------------ | [ 85.933117] sysfs group 'bridge' not found for kobject 'br0' | [ 85.933433] WARNING: CPU: 0 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 85.933857] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 85.934860] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 85.935435] Workqueue: netns cleanup_net [ 85.935647] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 85.935896] 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 f2 96 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 f2 96 mov $0xffffffff96f2cda0,%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) ... [ 85.936833] RSP: 0018:ffff9fd440063d70 EFLAGS: 00010286 [ 85.937103] RAX: 0000000000000000 RBX: ffffffff96b472c0 RCX: 00000000ffffdfff [ 85.937466] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 85.937841] RBP: 0000000000000000 R08: ffffffff97378508 R09: 00000000ffffdfff [ 85.938204] R10: ffffffff97298520 R11: ffffffff97348520 R12: ffff8b0d836f2610 [ 85.938565] R13: ffff9fd440063e08 R14: ffff8b0d836f2b80 R15: ffff8b0d83611750 [ 85.938934] FS: 0000000000000000(0000) GS:ffff8b0dbec00000(0000) knlGS:0000000000000000 [ 85.939345] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 85.939645] CR2: 00007f800f84aa30 CR3: 0000000027460006 CR4: 0000000000770ef0 [ 85.940010] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 85.940374] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 85.940742] PKRU: 55555554 [ 85.940887] Call Trace: [ 85.941021] <TASK> [ 85.941139] ? __warn (kernel/panic.c:677) [ 85.941314] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 85.941533] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 85.941736] ? handle_bug (arch/x86/kernel/traps.c:238) [ 85.941924] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 85.942127] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 85.942350] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 85.942575] br_dev_delete (net/bridge/br_if.c:396) [ 85.942774] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 85.943007] cleanup_net (net/core/net_namespace.c:630) [ 85.943209] ? process_one_work (kernel/workqueue.c:2606) [ 85.943429] process_one_work (kernel/workqueue.c:2633) [ 85.943648] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 85.943849] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 85.944074] kthread (kernel/kthread.c:388) [ 85.944246] ? __pfx_kthread (kernel/kthread.c:341) [ 85.944445] ret_from_fork (arch/x86/kernel/process.c:147) [ 85.944638] ? __pfx_kthread (kernel/kthread.c:341) [ 85.944843] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 90.187882] ------------[ cut here ]------------ | [ 90.188157] sysfs group 'bridge' not found for kobject 'br0' | [ 90.188483] WARNING: CPU: 0 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 90.188945] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 90.190064] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 90.190667] Workqueue: netns cleanup_net [ 90.190929] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 90.191295] 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 f2 96 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 f2 96 mov $0xffffffff96f2cda0,%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) ... [ 90.192291] RSP: 0018:ffff9fd440063d70 EFLAGS: 00010286 [ 90.192618] RAX: 0000000000000000 RBX: ffffffff96b472c0 RCX: 00000000ffffdfff [ 90.193059] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 90.193500] RBP: 0000000000000000 R08: ffffffff97378508 R09: 00000000ffffdfff [ 90.193951] R10: ffffffff97298520 R11: ffffffff97348520 R12: ffff8b0d823fa610 [ 90.194384] R13: ffff9fd440063e08 R14: ffff8b0d823fab80 R15: ffff8b0d84a91750 [ 90.194805] FS: 0000000000000000(0000) GS:ffff8b0dbec00000(0000) knlGS:0000000000000000 [ 90.195292] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.195722] CR2: 000055624caa3648 CR3: 000000000281a006 CR4: 0000000000770ef0 [ 90.196147] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 90.196583] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 90.196976] PKRU: 55555554 [ 90.197137] Call Trace: [ 90.197323] <TASK> [ 90.197538] ? __warn (kernel/panic.c:677) [ 90.197782] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 90.198060] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 90.198339] ? handle_bug (arch/x86/kernel/traps.c:238) [ 90.198578] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 90.198866] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 90.199146] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 90.199402] br_dev_delete (net/bridge/br_if.c:396) [ 90.199667] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 90.199963] cleanup_net (net/core/net_namespace.c:630) [ 90.200234] ? process_one_work (kernel/workqueue.c:2606) [ 90.200491] process_one_work (kernel/workqueue.c:2633) [ 90.200780] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 90.201048] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 90.201311] kthread (kernel/kthread.c:388) [ 90.201504] ? __pfx_kthread (kernel/kthread.c:341) [ 90.201752] ret_from_fork (arch/x86/kernel/process.c:147) [ 90.201996] ? __pfx_kthread (kernel/kthread.c:341) [ 90.202253] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 94.666961] ------------[ cut here ]------------ | [ 94.667663] sysfs group 'bridge' not found for kobject 'br0' | [ 94.668398] WARNING: CPU: 1 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 94.669370] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 94.671668] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 94.673016] Workqueue: netns cleanup_net [ 94.673503] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 94.673999] 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 f2 96 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 f2 96 mov $0xffffffff96f2cda0,%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) ... [ 94.675748] RSP: 0018:ffff9fd440063d70 EFLAGS: 00010286 [ 94.676248] RAX: 0000000000000000 RBX: ffffffff96b472c0 RCX: 00000000ffffdfff [ 94.676769] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 94.677263] RBP: 0000000000000000 R08: ffffffff97378508 R09: 00000000ffffdfff [ 94.677659] R10: ffffffff97298520 R11: ffffffff97348520 R12: ffff8b0d84a52610 [ 94.678024] R13: ffff9fd440063e08 R14: ffff8b0d84a52b80 R15: ffff8b0d848e4550 [ 94.678391] FS: 0000000000000000(0000) GS:ffff8b0dbec80000(0000) knlGS:0000000000000000 [ 94.678817] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 94.679163] CR2: 00007f226cba4270 CR3: 0000000027460001 CR4: 0000000000770ef0 [ 94.679829] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 94.680319] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 94.680995] PKRU: 55555554 [ 94.681262] Call Trace: [ 94.681628] <TASK> [ 94.681929] ? __warn (kernel/panic.c:677) [ 94.682367] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 94.682923] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 94.683496] ? handle_bug (arch/x86/kernel/traps.c:238) [ 94.683894] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 94.684294] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 94.684794] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 94.685343] br_dev_delete (net/bridge/br_if.c:396) [ 94.685785] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 94.686260] cleanup_net (net/core/net_namespace.c:630) [ 94.686683] ? process_one_work (kernel/workqueue.c:2606) [ 94.687179] process_one_work (kernel/workqueue.c:2633) [ 94.687590] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 94.687969] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 94.688366] kthread (kernel/kthread.c:388) [ 94.688737] ? __pfx_kthread (kernel/kthread.c:341) [ 94.689124] ret_from_fork (arch/x86/kernel/process.c:147) [ 94.689501] ? __pfx_kthread (kernel/kthread.c:341) [ 94.689873] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 98.864902] ------------[ cut here ]------------ | [ 98.865319] sysfs group 'bridge' not found for kobject 'br0' | [ 98.865623] WARNING: CPU: 2 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 98.866158] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 98.867414] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 98.868012] Workqueue: netns cleanup_net [ 98.868226] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 98.868538] 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 f2 96 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 f2 96 mov $0xffffffff96f2cda0,%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) ... [ 98.869829] RSP: 0018:ffff9fd440063d70 EFLAGS: 00010286 [ 98.870307] RAX: 0000000000000000 RBX: ffffffff96b472c0 RCX: 00000000ffffdfff [ 98.870953] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 98.871598] RBP: 0000000000000000 R08: ffffffff97378508 R09: 00000000ffffdfff [ 98.872243] R10: ffffffff97298520 R11: ffffffff97348520 R12: ffff8b0d823fe610 [ 98.872892] R13: ffff9fd440063e08 R14: ffff8b0d823feb80 R15: ffff8b0d848e5c50 [ 98.873519] FS: 0000000000000000(0000) GS:ffff8b0dbed00000(0000) knlGS:0000000000000000 [ 98.874519] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 98.875306] CR2: 00007ffe2207d508 CR3: 0000000027460004 CR4: 0000000000770ef0 [ 98.876289] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 98.877230] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 98.878130] PKRU: 55555554 [ 98.878502] Call Trace: [ 98.878815] <TASK> [ 98.879100] ? __warn (kernel/panic.c:677) [ 98.879484] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 98.880017] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 98.880388] ? handle_bug (arch/x86/kernel/traps.c:238) [ 98.880585] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 98.880797] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 98.881061] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 98.881315] br_dev_delete (net/bridge/br_if.c:396) [ 98.881518] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 98.881761] cleanup_net (net/core/net_namespace.c:630) [ 98.881963] ? process_one_work (kernel/workqueue.c:2606) [ 98.882183] process_one_work (kernel/workqueue.c:2633) [ 98.882397] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 98.882601] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 98.882835] kthread (kernel/kthread.c:388) [ 98.883018] ? __pfx_kthread (kernel/kthread.c:341) [ 98.883225] ret_from_fork (arch/x86/kernel/process.c:147) [ 98.883418] ? __pfx_kthread (kernel/kthread.c:341) [ 98.883616] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 103.298918] ------------[ cut here ]------------ | [ 103.299341] sysfs group 'bridge' not found for kobject 'br0' | [ 103.299883] WARNING: CPU: 1 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 103.300797] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 103.302749] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 103.303974] Workqueue: netns cleanup_net [ 103.304412] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 103.304921] 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 f2 96 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 f2 96 mov $0xffffffff96f2cda0,%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) ... [ 103.306732] RSP: 0018:ffff9fd440063d70 EFLAGS: 00010286 [ 103.307273] RAX: 0000000000000000 RBX: ffffffff96b472c0 RCX: 00000000ffffdfff [ 103.308127] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 103.309138] RBP: 0000000000000000 R08: ffffffff97378508 R09: 00000000ffffdfff [ 103.309845] R10: ffffffff97298520 R11: ffffffff97348520 R12: ffff8b0d8274c610 [ 103.310549] R13: ffff9fd440063e08 R14: ffff8b0d8274cb80 R15: ffff8b0d82a74550 [ 103.311414] FS: 0000000000000000(0000) GS:ffff8b0dbec80000(0000) knlGS:0000000000000000 [ 103.312329] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 103.312947] CR2: 000055624ad88dec CR3: 000000000294a006 CR4: 0000000000770ef0 [ 103.313694] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 103.314385] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 103.315165] PKRU: 55555554 [ 103.315490] Call Trace: [ 103.315789] <TASK> [ 103.316026] ? __warn (kernel/panic.c:677) [ 103.316216] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 103.316474] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 103.316725] ? handle_bug (arch/x86/kernel/traps.c:238) [ 103.316916] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 103.317118] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 103.317378] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 103.317596] br_dev_delete (net/bridge/br_if.c:396) [ 103.317817] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 103.318054] cleanup_net (net/core/net_namespace.c:630) [ 103.318257] ? process_one_work (kernel/workqueue.c:2606) [ 103.318478] process_one_work (kernel/workqueue.c:2633) [ 103.318705] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 103.318906] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 103.319146] kthread (kernel/kthread.c:388) [ 103.319323] ? __pfx_kthread (kernel/kthread.c:341) [ 103.319521] ret_from_fork (arch/x86/kernel/process.c:147) [ 103.319723] ? __pfx_kthread (kernel/kthread.c:341) [ 103.319924] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 107.592077] ------------[ cut here ]------------ | [ 107.592493] sysfs group 'bridge' not found for kobject 'br0' | [ 107.592895] WARNING: CPU: 0 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 107.593358] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 107.594459] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 107.595216] Workqueue: netns cleanup_net [ 107.595557] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 107.595961] 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 f2 96 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 f2 96 mov $0xffffffff96f2cda0,%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) ... [ 107.597081] RSP: 0018:ffff9fd440063d70 EFLAGS: 00010286 [ 107.597412] RAX: 0000000000000000 RBX: ffffffff96b472c0 RCX: 00000000ffffdfff [ 107.597872] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 107.598386] RBP: 0000000000000000 R08: ffffffff97378508 R09: 00000000ffffdfff [ 107.598969] R10: ffffffff97298520 R11: ffffffff97348520 R12: ffff8b0d82748610 [ 107.599561] R13: ffff9fd440063e08 R14: ffff8b0d82748b80 R15: ffff8b0d848e5c50 [ 107.600141] FS: 0000000000000000(0000) GS:ffff8b0dbec00000(0000) knlGS:0000000000000000 [ 107.600598] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 107.601018] CR2: 00007fddd391c270 CR3: 0000000027460004 CR4: 0000000000770ef0 [ 107.601469] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 107.601926] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 107.602441] PKRU: 55555554 [ 107.602717] Call Trace: [ 107.602903] <TASK> [ 107.603066] ? __warn (kernel/panic.c:677) [ 107.603274] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 107.603535] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 107.603783] ? handle_bug (arch/x86/kernel/traps.c:238) [ 107.604024] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 107.604259] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 107.604526] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 107.604832] br_dev_delete (net/bridge/br_if.c:396) [ 107.605071] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 107.605352] cleanup_net (net/core/net_namespace.c:630) [ 107.605600] ? process_one_work (kernel/workqueue.c:2606) [ 107.605915] process_one_work (kernel/workqueue.c:2633) [ 107.606223] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 107.606539] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 107.606915] kthread (kernel/kthread.c:388) [ 107.607223] ? __pfx_kthread (kernel/kthread.c:341) [ 107.607556] ret_from_fork (arch/x86/kernel/process.c:147) [ 107.607872] ? __pfx_kthread (kernel/kthread.c:341) [ 107.608194] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 111.982919] ------------[ cut here ]------------ | [ 111.983362] sysfs group 'bridge' not found for kobject 'br0' | [ 111.983967] WARNING: CPU: 2 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 111.984840] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 111.986634] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 111.987704] Workqueue: netns cleanup_net [ 111.988067] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 111.988509] 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 f2 96 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 f2 96 mov $0xffffffff96f2cda0,%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) ... [ 111.989649] RSP: 0018:ffff9fd440063d70 EFLAGS: 00010286 [ 111.989924] RAX: 0000000000000000 RBX: ffffffff96b472c0 RCX: 00000000ffffdfff [ 111.990287] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 111.990665] RBP: 0000000000000000 R08: ffffffff97378508 R09: 00000000ffffdfff [ 111.991031] R10: ffffffff97298520 R11: ffffffff97348520 R12: ffff8b0d82546610 [ 111.991395] R13: ffff9fd440063e08 R14: ffff8b0d82546b80 R15: ffff8b0d848e1750 [ 111.991776] FS: 0000000000000000(0000) GS:ffff8b0dbed00000(0000) knlGS:0000000000000000 [ 111.992196] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 111.992495] CR2: 00007f6277a3d000 CR3: 0000000027460005 CR4: 0000000000770ef0 [ 111.992874] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 111.993254] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 111.993618] PKRU: 55555554 [ 111.993778] Call Trace: [ 111.993914] <TASK> [ 111.994034] ? __warn (kernel/panic.c:677) [ 111.994210] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 111.994435] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 111.994634] ? handle_bug (arch/x86/kernel/traps.c:238) [ 111.994836] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 111.995039] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 111.995267] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 111.995487] br_dev_delete (net/bridge/br_if.c:396) [ 111.995698] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 111.995938] cleanup_net (net/core/net_namespace.c:630) [ 111.996134] ? process_one_work (kernel/workqueue.c:2606) [ 111.996353] process_one_work (kernel/workqueue.c:2633) [ 111.996569] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 111.996781] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 111.997008] kthread (kernel/kthread.c:388) [ 111.997180] ? __pfx_kthread (kernel/kthread.c:341) [ 111.997380] ret_from_fork (arch/x86/kernel/process.c:147) [ 111.997572] ? __pfx_kthread (kernel/kthread.c:341) [ 111.997783] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 116.209898] ------------[ cut here ]------------ | [ 116.210333] sysfs group 'bridge' not found for kobject 'br0' | [ 116.210839] WARNING: CPU: 1 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 116.211543] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 116.213327] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 116.214320] Workqueue: netns cleanup_net [ 116.214665] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 116.215121] 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 f2 96 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 f2 96 mov $0xffffffff96f2cda0,%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) ... [ 116.216759] RSP: 0018:ffff9fd440063d70 EFLAGS: 00010286 [ 116.217230] RAX: 0000000000000000 RBX: ffffffff96b472c0 RCX: 00000000ffffdfff [ 116.217841] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 116.218494] RBP: 0000000000000000 R08: ffffffff97378508 R09: 00000000ffffdfff [ 116.219166] R10: ffffffff97298520 R11: ffffffff97348520 R12: ffff8b0d84872610 [ 116.219752] R13: ffff9fd440063e08 R14: ffff8b0d84872b80 R15: ffff8b0d82a72e50 [ 116.220391] FS: 0000000000000000(0000) GS:ffff8b0dbec80000(0000) knlGS:0000000000000000 [ 116.221068] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 116.221580] CR2: 000055624ad88dec CR3: 0000000003576006 CR4: 0000000000770ef0 [ 116.222185] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 116.222804] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 116.223365] PKRU: 55555554 [ 116.223649] Call Trace: [ 116.223870] <TASK> [ 116.224044] ? __warn (kernel/panic.c:677) [ 116.224373] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 116.224713] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 116.224913] ? handle_bug (arch/x86/kernel/traps.c:238) [ 116.225101] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 116.225336] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 116.225586] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 116.225816] br_dev_delete (net/bridge/br_if.c:396) [ 116.226009] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 116.226244] cleanup_net (net/core/net_namespace.c:630) [ 116.226440] ? process_one_work (kernel/workqueue.c:2606) [ 116.226669] process_one_work (kernel/workqueue.c:2633) [ 116.226886] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 116.227087] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 116.227311] kthread (kernel/kthread.c:388) [ 116.227485] ? __pfx_kthread (kernel/kthread.c:341) [ 116.227691] ret_from_fork (arch/x86/kernel/process.c:147) [ 116.227886] ? __pfx_kthread (kernel/kthread.c:341) [ 116.228085] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 120.654897] ------------[ cut here ]------------ | [ 120.655393] sysfs group 'bridge' not found for kobject 'br0' | [ 120.656054] WARNING: CPU: 2 PID: 11 at fs/sysfs/group.c:282 sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) | [ 120.656865] Modules linked in: geneve vxlan ip6_udp_tunnel udp_tunnel act_csum libcrc32c act_pedit cls_flower sch_prio [ 120.658750] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 120.659670] Workqueue: netns cleanup_net [ 120.659882] RIP: 0010:sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 120.660195] 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 f2 96 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 f2 96 mov $0xffffffff96f2cda0,%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) ... [ 120.661712] RSP: 0018:ffff9fd440063d70 EFLAGS: 00010286 [ 120.662010] RAX: 0000000000000000 RBX: ffffffff96b472c0 RCX: 00000000ffffdfff [ 120.662375] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001 [ 120.662749] RBP: 0000000000000000 R08: ffffffff97378508 R09: 00000000ffffdfff [ 120.663297] R10: ffffffff97298520 R11: ffffffff97348520 R12: ffff8b0d84870610 [ 120.663918] R13: ffff9fd440063e08 R14: ffff8b0d84870b80 R15: ffff8b0d848e4550 [ 120.664410] FS: 0000000000000000(0000) GS:ffff8b0dbed00000(0000) knlGS:0000000000000000 [ 120.665062] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 120.665602] CR2: 00007ffe2207cdc8 CR3: 0000000027460005 CR4: 0000000000770ef0 [ 120.666286] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 120.666981] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 120.667685] PKRU: 55555554 [ 120.667991] Call Trace: [ 120.668222] <TASK> [ 120.668424] ? __warn (kernel/panic.c:677) [ 120.668821] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 120.669306] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 120.669696] ? handle_bug (arch/x86/kernel/traps.c:238) [ 120.670137] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 120.670499] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 120.670998] ? sysfs_remove_group (fs/sysfs/group.c:282 (discriminator 1)) [ 120.671582] br_dev_delete (net/bridge/br_if.c:396) [ 120.672002] br_net_exit_batch_rtnl (net/bridge/br.c:369) [ 120.672411] cleanup_net (net/core/net_namespace.c:630) [ 120.672765] ? process_one_work (kernel/workqueue.c:2606) [ 120.673214] process_one_work (kernel/workqueue.c:2633) [ 120.673673] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 120.674051] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 120.674549] kthread (kernel/kthread.c:388) [ 120.674897] ? __pfx_kthread (kernel/kthread.c:341) [ 120.675371] ret_from_fork (arch/x86/kernel/process.c:147) [ 120.675761] ? __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