====================================== | [ 1094.258050] br2: port 1(vethhv-21) entered disabled state | [ 1094.293930] ------------[ cut here ]------------ | [ 1094.294583] WARNING: CPU: 2 PID: 11 at net/core/dev.c:11120 unregister_netdevice_many_notify (net/core/dev.c:11120 (discriminator 1)) | [ 1094.295851] Modules linked in: bonding xfrm_user psample macsec fou ip6_gre ip_gre gre sch_htb act_mirred cls_u32 ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls cls_matchall act_gact cls_flower sch_ingress vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim] [ 1094.300005] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1094.300841] Workqueue: netns cleanup_net [ 1094.301167] RIP: 0010:unregister_netdevice_many_notify (net/core/dev.c:11120 (discriminator 1)) [ 1094.301592] Code: 05 a1 4a 09 01 01 90 ba 32 1b 00 00 48 c7 c6 20 e9 ae b3 48 c7 c7 00 37 b2 b3 e8 7f 9d 55 ff 90 0f 0b 90 90 e9 15 fc ff ff 90 <0f> 0b 90 e9 23 fc ff ff e8 67 28 2e 00 0f 1f 80 00 00 00 00 90 90 All code ======== 0: 05 a1 4a 09 01 add $0x1094aa1,%eax 5: 01 90 ba 32 1b 00 add %edx,0x1b32ba(%rax) b: 00 48 c7 add %cl,-0x39(%rax) e: c6 (bad) f: 20 e9 and %ch,%cl 11: ae scas %es:(%rdi),%al 12: b3 48 mov $0x48,%bl 14: c7 c7 00 37 b2 b3 mov $0xb3b23700,%edi 1a: e8 7f 9d 55 ff call 0xffffffffff559d9e 1f: 90 nop 20: 0f 0b ud2 22: 90 nop 23: 90 nop 24: e9 15 fc ff ff jmp 0xfffffffffffffc3e 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: e9 23 fc ff ff jmp 0xfffffffffffffc55 32: e8 67 28 2e 00 call 0x2e289e 37: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 3e: 90 nop 3f: 90 nop Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: e9 23 fc ff ff jmp 0xfffffffffffffc2b 8: e8 67 28 2e 00 call 0x2e2874 d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 14: 90 nop 15: 90 nop [ 1094.302832] RSP: 0018:ffffa3ae00063d78 EFLAGS: 00010283 [ 1094.303198] RAX: ffff8ff4427181c0 RBX: ffffa3ae00063e08 RCX: 0000000000000000 [ 1094.303680] RDX: ffff8ff442410358 RSI: 0000000000000000 RDI: ffffffffb404aa80 [ 1094.304160] RBP: ffff8ff442718000 R08: 0000000000000001 R09: 0000000000000001 [ 1094.304606] R10: 0000000000000004 R11: 0000000000000001 R12: ffff8ff4441f7800 [ 1094.305082] R13: ffff8ff442410f40 R14: dead000000000100 R15: ffff8ff442410f40 [ 1094.305505] FS: 0000000000000000(0000) GS:ffff8ff47ed00000(0000) knlGS:0000000000000000 [ 1094.306053] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1094.306470] CR2: 00007f6d11f4c270 CR3: 000000001fe60003 CR4: 0000000000770ef0 [ 1094.306951] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1094.307420] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1094.307898] PKRU: 55555554 [ 1094.308094] Call Trace: [ 1094.308292] <TASK> [ 1094.308433] ? __warn (kernel/panic.c:677) [ 1094.308610] ? unregister_netdevice_many_notify (net/core/dev.c:11120 (discriminator 1)) [ 1094.308912] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 1094.309110] ? handle_bug (arch/x86/kernel/traps.c:238) [ 1094.309306] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 1094.309537] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 1094.309762] ? unregister_netdevice_many_notify (net/core/dev.c:11120 (discriminator 1)) [ 1094.310051] ? unregister_netdevice_many_notify (net/core/dev.c:6962 net/core/dev.c:11120) [ 1094.310364] cleanup_net (net/core/net_namespace.c:633) [ 1094.310558] ? process_one_work (kernel/workqueue.c:2606) [ 1094.310780] process_one_work (kernel/workqueue.c:2633) [ 1094.310993] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 1094.311199] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 1094.311425] kthread (kernel/kthread.c:388) [ 1094.311596] ? __pfx_kthread (kernel/kthread.c:341) [ 1094.311795] ret_from_fork (arch/x86/kernel/process.c:147) [ 1094.311989] ? __pfx_kthread (kernel/kthread.c:341) [ 1094.312194] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 1094.314490] ---[ end trace 0000000000000000 ]--- | [ 1094.315170] ------------[ cut here ]------------ | [ 1094.315626] WARNING: CPU: 2 PID: 11 at net/core/dev.c:11120 unregister_netdevice_many_notify (net/core/dev.c:11120 (discriminator 1)) | [ 1094.316201] Modules linked in: bonding xfrm_user psample macsec fou ip6_gre ip_gre gre sch_htb act_mirred cls_u32 ifb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls cls_matchall act_gact cls_flower sch_ingress vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim] [ 1094.319366] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1094.320553] Workqueue: netns cleanup_net [ 1094.321029] RIP: 0010:unregister_netdevice_many_notify (net/core/dev.c:11120 (discriminator 1)) [ 1094.321812] Code: 05 a1 4a 09 01 01 90 ba 32 1b 00 00 48 c7 c6 20 e9 ae b3 48 c7 c7 00 37 b2 b3 e8 7f 9d 55 ff 90 0f 0b 90 90 e9 15 fc ff ff 90 <0f> 0b 90 e9 23 fc ff ff e8 67 28 2e 00 0f 1f 80 00 00 00 00 90 90 All code ======== 0: 05 a1 4a 09 01 add $0x1094aa1,%eax 5: 01 90 ba 32 1b 00 add %edx,0x1b32ba(%rax) b: 00 48 c7 add %cl,-0x39(%rax) e: c6 (bad) f: 20 e9 and %ch,%cl 11: ae scas %es:(%rdi),%al 12: b3 48 mov $0x48,%bl 14: c7 c7 00 37 b2 b3 mov $0xb3b23700,%edi 1a: e8 7f 9d 55 ff call 0xffffffffff559d9e 1f: 90 nop 20: 0f 0b ud2 22: 90 nop 23: 90 nop 24: e9 15 fc ff ff jmp 0xfffffffffffffc3e 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: e9 23 fc ff ff jmp 0xfffffffffffffc55 32: e8 67 28 2e 00 call 0x2e289e 37: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 3e: 90 nop 3f: 90 nop Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: e9 23 fc ff ff jmp 0xfffffffffffffc2b 8: e8 67 28 2e 00 call 0x2e2874 d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 14: 90 nop 15: 90 nop [ 1094.324309] RSP: 0018:ffffa3ae00063d78 EFLAGS: 00010287 [ 1094.324989] RAX: ffff8ff442b101c0 RBX: ffffa3ae00063e08 RCX: 0000000000000000 [ 1094.325949] RDX: ffff8ff442605098 RSI: 0000000000000000 RDI: ffffffffb404aa80 [ 1094.326905] RBP: ffff8ff442b10000 R08: 0000000000000001 R09: 0000000000000001 [ 1094.327850] R10: 0000000000000004 R11: 0000000000000001 R12: ffff8ff4441f7800 [ 1094.328626] R13: ffff8ff442605d80 R14: dead000000000100 R15: ffff8ff442605d80 [ 1094.329258] FS: 0000000000000000(0000) GS:ffff8ff47ed00000(0000) knlGS:0000000000000000 [ 1094.330086] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1094.330399] CR2: 00007f6d11f4c270 CR3: 000000001fe60003 CR4: 0000000000770ef0 [ 1094.330905] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1094.331366] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1094.331778] PKRU: 55555554 [ 1094.331924] Call Trace: [ 1094.332188] <TASK> [ 1094.332416] ? __warn (kernel/panic.c:677) [ 1094.332903] ? unregister_netdevice_many_notify (net/core/dev.c:11120 (discriminator 1)) [ 1094.333310] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 1094.333774] ? handle_bug (arch/x86/kernel/traps.c:238) [ 1094.334317] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 1094.334889] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 1094.335542] ? unregister_netdevice_many_notify (net/core/dev.c:11120 (discriminator 1)) [ 1094.336387] ? unregister_netdevice_many_notify (net/core/dev.c:6962 net/core/dev.c:11120) [ 1094.337297] cleanup_net (net/core/net_namespace.c:633) [ 1094.337907] ? process_one_work (kernel/workqueue.c:2606) [ 1094.338544] process_one_work (kernel/workqueue.c:2633) [ 1094.339199] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 1094.339773] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 1094.340404] kthread (kernel/kthread.c:388) [ 1094.340922] ? __pfx_kthread (kernel/kthread.c:341) [ 1094.341351] ret_from_fork (arch/x86/kernel/process.c:147) [ 1094.341886] ? __pfx_kthread (kernel/kthread.c:341) Finger prints: unregister_netdevice_many_notify:cleanup_net:process_one_work:worker_thread unregister_netdevice_many_notify:cleanup_net:process_one_work:worker_thread