====================================== | xx__-> [ 9.093723][ T187] ------------[ cut here ]------------ | [ 9.094007][ T187] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/187 | [ 9.094369][ T187] Modules linked in: veth | [ 9.094929][ T187] Tainted: [W]=WARN [ 9.095088][ T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.095391][ T187] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3)) [ 9.095644][ T187] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 e4 f0 ff b9 a6 ff ff All code ======== 0: 89 fa mov %edi,%edx 2: 48 c1 ea 03 shr $0x3,%rdx 6: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx a: 48 89 f8 mov %rdi,%rax d: 83 e0 07 and $0x7,%eax 10: 83 c0 03 add $0x3,%eax 13: 38 d0 cmp %dl,%al 15: 7c 04 jl 0x1b 17: 84 d2 test %dl,%dl 19: 75 79 jne 0x94 1b: 48 8b 44 24 58 mov 0x58(%rsp),%rax 20: 44 8b 48 08 mov 0x8(%rax),%r9d 24: e9 42 ff ff ff jmp 0xffffffffffffff6b 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: ba 02 00 00 00 mov $0x2,%edx 32: 48 89 de mov %rbx,%rsi 35: 31 ff xor %edi,%edi 37: e8 38 e4 f0 ff call 0xfffffffffff0e474 3c: b9 .byte 0xb9 3d: a6 cmpsb (%rdi),(%rsi) 3e: ff (bad) 3f: ff .byte 0xff Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: ba 02 00 00 00 mov $0x2,%edx 8: 48 89 de mov %rbx,%rsi b: 31 ff xor %edi,%edi d: e8 38 e4 f0 ff call 0xfffffffffff0e44a 12: b9 .byte 0xb9 13: a6 cmpsb (%rdi),(%rsi) 14: ff (bad) 15: ff .byte 0xff [ 9.096255][ T187] RSP: 0018:ffa0000000886e30 EFLAGS: 00010286 [ 9.096499][ T187] RAX: 00000000ffffffa6 RBX: ff1100000b0d23c0 RCX: 1ff4000000110d8c [ 9.096777][ T187] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b0d2478 [ 9.097066][ T187] RBP: ff11000009ab4000 R08: 1fe220000161a490 R09: ff1100000bc70b80 [ 9.097422][ T187] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff [ 9.097710][ T187] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009901c80 [ 9.097982][ T187] FS: 00007f28d0f92840(0000) GS:ff1100008e2b0000(0000) knlGS:0000000000000000 [ 9.098420][ T187] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 9.098669][ T187] CR2: 000000000042ebe0 CR3: 000000000b3f6003 CR4: 0000000000771ef0 [ 9.099050][ T187] PKRU: 55555554 [ 9.099247][ T187] Call Trace: [ 9.099409][ T187] [ 9.099544][ T187] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:179 (discriminator 1) kernel/locking/spinlock.c:198 (discriminator 1)) [ 9.099795][ T187] rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551) [ 9.099996][ T187] rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560) [ 9.100186][ T187] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 9.100400][ T187] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 9.100605][ T187] __dev_notify_flags (net/core/dev.c:9787) [ 9.100812][ T187] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 9.101008][ T187] ? netif_change_name (net/core/dev.c:1495) [ 9.101232][ T187] ? __queue_work (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/workqueue.c:2402 (discriminator 2)) [ 9.101458][ T187] ? __queue_work (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/workqueue.c:2402 (discriminator 2)) [ 9.101658][ T187] ? mark_held_locks (kernel/locking/lockdep.c:4325) [ 9.101857][ T187] rtnl_configure_link (net/core/rtnetlink.c:3670) [ 9.102050][ T187] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4472) [ 9.102255][ T187] ? queue_delayed_work_on (kernel/workqueue.c:2616 (discriminator 6)) [ 9.102461][ T187] veth_newlink (drivers/net/veth.c:1871) veth [ 9.102664][ T187] ? veth_poll_controller (drivers/net/veth.c:1470) veth [ 9.102894][ T187] ? kasan_save_stack (mm/kasan/common.c:57) [ 9.103089][ T187] ? kasan_save_track (mm/kasan/common.c:78) [ 9.103294][ T187] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 9.103515][ T187] ? __kvmalloc_node_noprof (mm/slub.c:5296 mm/slub.c:6832) [ 9.103723][ T187] ? alloc_netdev_mqs (net/core/dev.c:12129 (discriminator 7)) [ 9.103921][ T187] ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1)) [ 9.104119][ T187] ? alloc_netdev_mqs (net/core/dev.c:12133) [ 9.104424][ T187] ? rtnl_create_link (net/core/rtnetlink.c:3720) [ 9.104633][ T187] rtnl_newlink_create (net/core/rtnetlink.c:3904) [ 9.104842][ T187] ? rtnl_create_link (net/core/rtnetlink.c:3691) [ 9.105034][ T187] ? __dev_get_by_name (net/core/dev.c:883) [ 9.105242][ T187] ? rtnl_dev_get (net/core/rtnetlink.c:3478) [ 9.105441][ T187] __rtnl_newlink (net/core/rtnetlink.c:4035) [ 9.105654][ T187] rtnl_newlink (net/core/rtnetlink.c:4150) [ 9.105860][ T187] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 9.106057][ T187] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 9.106362][ T187] ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1)) [ 9.106568][ T187] ? mark_usage (kernel/locking/lockdep.c:4674) [ 9.106867][ T187] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 9.107174][ T187] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 9.107369][ T187] ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1)) [ 9.107668][ T187] rtnetlink_rcv_msg (net/core/rtnetlink.c:7061) [ 9.107868][ T187] ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2)) [ 9.108061][ T187] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.108268][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 9.108473][ T187] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 9.108671][ T187] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 9.108965][ T187] netlink_rcv_skb (net/netlink/af_netlink.c:2551) [ 9.109174][ T187] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.109368][ T187] ? netlink_ack (./include/linux/skbuff.h:2718) [ 9.109575][ T187] ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 9.109778][ T187] ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 9.109974][ T187] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 9.110278][ T187] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 9.110478][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 9.110682][ T187] netlink_sendmsg (net/netlink/af_netlink.c:1895) [ 9.110880][ T187] ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7)) [ 9.111079][ T187] ? __might_fault (mm/memory.c:7340 (discriminator 5)) [ 9.111292][ T187] ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4)) [ 9.111596][ T187] ? copy_msghdr_from_user (net/socket.c:2635) [ 9.111800][ T187] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349) [ 9.112028][ T187] ? move_addr_to_kernel (net/socket.c:258) [ 9.112242][ T187] ___sys_sendmsg (net/socket.c:2752) [ 9.112537][ T187] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 9.112844][ T187] ? copy_msghdr_from_user (net/socket.c:2603) [ 9.113051][ T187] __sys_sendmsg (net/socket.c:2784) [ 9.113255][ T187] ? __sys_sendmsg_sock (net/socket.c:2765) [ 9.113458][ T187] ? down_write_nested (kernel/locking/rwsem.c:1753) [ 9.113652][ T187] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 9.113951][ T187] ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79) [ 9.114157][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 9.114355][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 9.114563][ T187] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 9.114766][ T187] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1)) [ 9.115054][ T187] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3)) [ 9.115266][ T187] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.115501][ T187] RIP: 0033:0x7f28d11cc08e [ 9.115713][ T187] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 94 bd 00 00 call 0xbd9c 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 9.116282][ T187] RSP: 002b:00007ffd71899e50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 9.116650][ T187] RAX: ffffffffffffffda RBX: 00007ffd7189a5e8 RCX: 00007f28d11cc08e [ 9.116918][ T187] RDX: 0000000000000000 RSI: 00007ffd71899f00 RDI: 0000000000000005 [ 9.117197][ T187] RBP: 00007ffd71899e60 R08: 0000000000000000 R09: 0000000000000000 [ 9.117463][ T187] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10caee [ 9.117833][ T187] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffd7189a5c0 | [ 9.128985][ T187] ------------[ cut here ]------------ | [ 9.129194][ T187] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: ip/187 | [ 9.129486][ T187] Modules linked in: veth | [ 9.129980][ T187] Tainted: [W]=WARN [ 9.130230][ T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.130458][ T187] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3)) [ 9.130698][ T187] Code: 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 79 48 8b 44 24 58 44 8b 48 08 e9 42 ff ff ff 90 <0f> 0b 90 ba 02 00 00 00 48 89 de 31 ff e8 38 e4 f0 ff b9 a6 ff ff All code ======== 0: 89 fa mov %edi,%edx 2: 48 c1 ea 03 shr $0x3,%rdx 6: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx a: 48 89 f8 mov %rdi,%rax d: 83 e0 07 and $0x7,%eax 10: 83 c0 03 add $0x3,%eax 13: 38 d0 cmp %dl,%al 15: 7c 04 jl 0x1b 17: 84 d2 test %dl,%dl 19: 75 79 jne 0x94 1b: 48 8b 44 24 58 mov 0x58(%rsp),%rax 20: 44 8b 48 08 mov 0x8(%rax),%r9d 24: e9 42 ff ff ff jmp 0xffffffffffffff6b 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: ba 02 00 00 00 mov $0x2,%edx 32: 48 89 de mov %rbx,%rsi 35: 31 ff xor %edi,%edi 37: e8 38 e4 f0 ff call 0xfffffffffff0e474 3c: b9 .byte 0xb9 3d: a6 cmpsb (%rdi),(%rsi) 3e: ff (bad) 3f: ff .byte 0xff Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: ba 02 00 00 00 mov $0x2,%edx 8: 48 89 de mov %rbx,%rsi b: 31 ff xor %edi,%edi d: e8 38 e4 f0 ff call 0xfffffffffff0e44a 12: b9 .byte 0xb9 13: a6 cmpsb (%rdi),(%rsi) 14: ff (bad) 15: ff .byte 0xff [ 9.131245][ T187] RSP: 0018:ffa00000008871b0 EFLAGS: 00010286 [ 9.131473][ T187] RAX: 00000000ffffffa6 RBX: ff1100000be77000 RCX: 1ff4000000110dfc [ 9.131740][ T187] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000be770b8 [ 9.131991][ T187] RBP: ff110000088c9000 R08: 1fe22000017cee18 R09: ff1100000bc70b80 [ 9.132259][ T187] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff [ 9.132519][ T187] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 9.132786][ T187] FS: 00007f28d0f92840(0000) GS:ff1100008e2b0000(0000) knlGS:0000000000000000 [ 9.133094][ T187] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 9.133330][ T187] CR2: 000000000042ebe0 CR3: 000000000b3f6003 CR4: 0000000000771ef0 [ 9.133597][ T187] PKRU: 55555554 [ 9.133761][ T187] Call Trace: [ 9.133916][ T187] [ 9.134039][ T187] rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551) [ 9.134243][ T187] rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560) [ 9.134400][ T187] __dev_notify_flags (net/core/dev.c:9787) [ 9.134599][ T187] ? netif_change_name (net/core/dev.c:1495) [ 9.134799][ T187] ? rtnl_af_lookup (net/core/rtnetlink.c:763 (discriminator 1)) [ 9.134987][ T187] ? alloc_netdev_mqs (net/core/dev.c:12133) [ 9.135189][ T187] rtnl_configure_link (net/core/rtnetlink.c:3670) [ 9.135378][ T187] rtnl_newlink_create (net/core/rtnetlink.c:3914) [ 9.135577][ T187] ? rtnl_create_link (net/core/rtnetlink.c:3691) [ 9.135775][ T187] ? __dev_get_by_name (net/core/dev.c:883) [ 9.135964][ T187] ? rtnl_dev_get (net/core/rtnetlink.c:3478) [ 9.136175][ T187] __rtnl_newlink (net/core/rtnetlink.c:4035) [ 9.136366][ T187] rtnl_newlink (net/core/rtnetlink.c:4150) [ 9.136567][ T187] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 9.136765][ T187] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 9.136957][ T187] ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1)) [ 9.137157][ T187] ? mark_usage (kernel/locking/lockdep.c:4674) [ 9.137343][ T187] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 9.137540][ T187] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 9.137743][ T187] ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1)) [ 9.137930][ T187] rtnetlink_rcv_msg (net/core/rtnetlink.c:7061) [ 9.138118][ T187] ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2)) [ 9.138319][ T187] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.138521][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 9.138726][ T187] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 9.138917][ T187] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 9.139109][ T187] netlink_rcv_skb (net/netlink/af_netlink.c:2551) [ 9.139311][ T187] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.139504][ T187] ? netlink_ack (./include/linux/skbuff.h:2718) [ 9.139707][ T187] ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 9.139893][ T187] ? netlink_deliver_tap (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 9.140081][ T187] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 9.140284][ T187] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 9.140479][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 9.140673][ T187] netlink_sendmsg (net/netlink/af_netlink.c:1895) [ 9.140867][ T187] ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7)) [ 9.141057][ T187] ? __might_fault (mm/memory.c:7340 (discriminator 5)) [ 9.141262][ T187] ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4)) [ 9.141462][ T187] ? copy_msghdr_from_user (net/socket.c:2635) [ 9.141657][ T187] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349) [ 9.141883][ T187] ? move_addr_to_kernel (net/socket.c:258) [ 9.142079][ T187] ___sys_sendmsg (net/socket.c:2752) [ 9.142280][ T187] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 9.142474][ T187] ? copy_msghdr_from_user (net/socket.c:2603) [ 9.142680][ T187] __sys_sendmsg (net/socket.c:2784) [ 9.142875][ T187] ? __sys_sendmsg_sock (net/socket.c:2765) [ 9.143063][ T187] ? down_write_nested (kernel/locking/rwsem.c:1753) [ 9.143262][ T187] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 9.143465][ T187] ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79) [ 9.143655][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 9.143848][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 9.144036][ T187] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 9.144238][ T187] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1)) [ 9.144427][ T187] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3)) [ 9.144627][ T187] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.144868][ T187] RIP: 0033:0x7f28d11cc08e [ 9.145062][ T187] Code: 4d 89 d8 e8 94 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 94 bd 00 00 call 0xbd9c 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 9.145628][ T187] RSP: 002b:00007ffd71899e50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 9.145897][ T187] RAX: ffffffffffffffda RBX: 00007ffd7189a5e8 RCX: 00007f28d11cc08e [ 9.146167][ T187] RDX: 0000000000000000 RSI: 00007ffd71899f00 RDI: 0000000000000005 [ 9.146433][ T187] RBP: 00007ffd71899e60 R08: 0000000000000000 R09: 0000000000000000 [ 9.146713][ T187] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10caee Finger prints: rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:rtnl_configure_link:rtnl_newlink_create rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:rtnl_configure_link:veth_newlink