====================================== | [ 1201.894846] br2: port 1(vethhv-21) entered disabled state | [ 1201.929318] ------------[ cut here ]------------ | [ 1201.929636] WARNING: CPU: 0 PID: 11 at net/core/dev.c:11120 unregister_netdevice_many_notify (net/core/dev.c:11120 (discriminator 1)) | [ 1201.930248] Modules linked in: bonding xfrm_user psample macsec fou ip6_gre ip_gre gre cls_u32 sch_htb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls act_gact cls_flower sch_ingress vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim] [ 1201.932179] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1201.932871] Workqueue: netns cleanup_net [ 1201.933089] RIP: 0010:unregister_netdevice_many_notify (net/core/dev.c:11120 (discriminator 1)) [ 1201.933471] Code: 05 2e 4c 09 01 01 90 ba 32 1b 00 00 48 c7 c6 e8 eb 6e 87 48 c7 c7 e0 39 72 87 e8 2f 9c 55 ff 90 0f 0b 90 90 e9 15 fc ff ff 90 <0f> 0b 90 e9 23 fc ff ff e8 17 27 2e 00 0f 1f 80 00 00 00 00 90 90 All code ======== 0: 05 2e 4c 09 01 add $0x1094c2e,%eax 5: 01 90 ba 32 1b 00 add %edx,0x1b32ba(%rax) b: 00 48 c7 add %cl,-0x39(%rax) e: c6 (bad) f: e8 eb 6e 87 48 call 0x48876eff 14: c7 c7 e0 39 72 87 mov $0x877239e0,%edi 1a: e8 2f 9c 55 ff call 0xffffffffff559c4e 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 17 27 2e 00 call 0x2e274e 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 17 27 2e 00 call 0x2e2724 d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 14: 90 nop 15: 90 nop [ 1201.934470] RSP: 0018:ffffb86700063d78 EFLAGS: 00010283 [ 1201.934790] RAX: ffff88e5095301c0 RBX: ffffb86700063e08 RCX: 0000000000000000 [ 1201.935194] RDX: ffff88e5036ded18 RSI: 0000000000000000 RDI: ffffffff87c4aa80 [ 1201.935576] RBP: ffff88e509530000 R08: 0000000000000001 R09: 0000000000000001 [ 1201.935986] R10: 0000000000000004 R11: 0000000000000001 R12: ffff88e501bd8400 [ 1201.936382] R13: ffff88e5036de680 R14: dead000000000100 R15: ffff88e5036de680 [ 1201.936796] FS: 0000000000000000(0000) GS:ffff88e53ec00000(0000) knlGS:0000000000000000 [ 1201.937244] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1201.937559] CR2: 00007f2f34b1f270 CR3: 000000000bc60002 CR4: 0000000000770ef0 [ 1201.937972] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1201.938367] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1201.938766] PKRU: 55555554 [ 1201.938943] Call Trace: [ 1201.939092] <TASK> [ 1201.939239] ? __warn (kernel/panic.c:677) [ 1201.939444] ? unregister_netdevice_many_notify (net/core/dev.c:11120 (discriminator 1)) [ 1201.939756] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 1201.939974] ? handle_bug (arch/x86/kernel/traps.c:238) [ 1201.940202] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 1201.940432] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 1201.940689] ? unregister_netdevice_many_notify (net/core/dev.c:11120 (discriminator 1)) [ 1201.941009] ? unregister_netdevice_many_notify (net/core/dev.c:6962 net/core/dev.c:11120) [ 1201.941316] cleanup_net (net/core/net_namespace.c:633) [ 1201.941514] ? process_one_work (kernel/workqueue.c:2606) [ 1201.941762] process_one_work (kernel/workqueue.c:2633) [ 1201.942018] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 1201.942243] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 1201.942486] kthread (kernel/kthread.c:388) [ 1201.942703] ? __pfx_kthread (kernel/kthread.c:341) [ 1201.942990] ret_from_fork (arch/x86/kernel/process.c:147) [ 1201.943207] ? __pfx_kthread (kernel/kthread.c:341) [ 1201.943439] ret_from_fork_asm (arch/x86/entry/entry_64.S:250) | [ 1201.945991] ---[ end trace 0000000000000000 ]--- | [ 1201.946857] ------------[ cut here ]------------ | [ 1201.947622] WARNING: CPU: 1 PID: 11 at net/core/dev.c:11120 unregister_netdevice_many_notify (net/core/dev.c:11120 (discriminator 1)) | [ 1201.949046] Modules linked in: bonding xfrm_user psample macsec fou ip6_gre ip_gre gre cls_u32 sch_htb poly1305_generic libpoly1305 chacha_generic libchacha chacha20poly1305 tls act_gact cls_flower sch_ingress vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim] [ 1201.954565] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1201.955743] Workqueue: netns cleanup_net [ 1201.956090] RIP: 0010:unregister_netdevice_many_notify (net/core/dev.c:11120 (discriminator 1)) [ 1201.956584] Code: 05 2e 4c 09 01 01 90 ba 32 1b 00 00 48 c7 c6 e8 eb 6e 87 48 c7 c7 e0 39 72 87 e8 2f 9c 55 ff 90 0f 0b 90 90 e9 15 fc ff ff 90 <0f> 0b 90 e9 23 fc ff ff e8 17 27 2e 00 0f 1f 80 00 00 00 00 90 90 All code ======== 0: 05 2e 4c 09 01 add $0x1094c2e,%eax 5: 01 90 ba 32 1b 00 add %edx,0x1b32ba(%rax) b: 00 48 c7 add %cl,-0x39(%rax) e: c6 (bad) f: e8 eb 6e 87 48 call 0x48876eff 14: c7 c7 e0 39 72 87 mov $0x877239e0,%edi 1a: e8 2f 9c 55 ff call 0xffffffffff559c4e 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 17 27 2e 00 call 0x2e274e 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 17 27 2e 00 call 0x2e2724 d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 14: 90 nop 15: 90 nop [ 1201.958682] RSP: 0018:ffffb86700063d78 EFLAGS: 00010283 [ 1201.959674] RAX: ffff88e5035201c0 RBX: ffffb86700063e08 RCX: 0000000000000000 [ 1201.961122] RDX: ffff88e5034eda18 RSI: 0000000000000000 RDI: ffffffff87c4aa80 [ 1201.962442] RBP: ffff88e503520000 R08: 0000000000000001 R09: 0000000000000001 [ 1201.963732] R10: 0000000000000004 R11: 0000000000000001 R12: ffff88e502bf4500 [ 1201.965097] R13: ffff88e5034ed080 R14: dead000000000100 R15: ffff88e5034ed080 [ 1201.966264] FS: 0000000000000000(0000) GS:ffff88e53ec80000(0000) knlGS:0000000000000000 [ 1201.967404] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1201.968199] CR2: 00007ff72adae000 CR3: 000000000bc60004 CR4: 0000000000770ef0 [ 1201.969097] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1201.969842] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1201.970523] PKRU: 55555554 [ 1201.970883] Call Trace: [ 1201.971091] <TASK> [ 1201.971398] ? __warn (kernel/panic.c:677) [ 1201.971669] ? unregister_netdevice_many_notify (net/core/dev.c:11120 (discriminator 1)) [ 1201.972091] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 1201.972373] ? handle_bug (arch/x86/kernel/traps.c:238) [ 1201.972740] ? exc_invalid_op (arch/x86/kernel/traps.c:259 (discriminator 1)) [ 1201.973249] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:568) [ 1201.973597] ? unregister_netdevice_many_notify (net/core/dev.c:11120 (discriminator 1)) [ 1201.974168] ? unregister_netdevice_many_notify (net/core/dev.c:6962 net/core/dev.c:11120) [ 1201.974906] cleanup_net (net/core/net_namespace.c:633) [ 1201.975382] ? process_one_work (kernel/workqueue.c:2606) [ 1201.975957] process_one_work (kernel/workqueue.c:2633) [ 1201.976516] worker_thread (kernel/workqueue.c:2700 kernel/workqueue.c:2787) [ 1201.977055] ? __pfx_worker_thread (kernel/workqueue.c:2733) [ 1201.977674] kthread (kernel/kthread.c:388) [ 1201.978185] ? __pfx_kthread (kernel/kthread.c:341) [ 1201.978749] ret_from_fork (arch/x86/kernel/process.c:147) [ 1201.979289] ? __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