====================================== | xx__-> [ 8.879683][ T178] ------------[ cut here ]------------ | [ 8.879910][ T178] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: ip/178 | [ 8.880157][ T178] Modules linked in: netdevsim | [ 8.880622][ T178] Tainted: [W]=WARN [ 8.880774][ T178] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.880947][ T178] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3)) [ 8.881125][ T178] 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 a8 cc 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 a8 cc f0 ff call 0xfffffffffff0cce4 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 a8 cc f0 ff call 0xfffffffffff0ccba 12: b9 .byte 0xb9 13: a6 cmpsb (%rdi),(%rsi) 14: ff (bad) 15: ff .byte 0xff [ 8.881614][ T178] RSP: 0018:ffa00000006c7aa8 EFLAGS: 00010286 [ 8.881788][ T178] RAX: 00000000ffffffa6 RBX: ff1100000d2cd240 RCX: 1ff40000000d8f1b [ 8.881993][ T178] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d2cd2f0 [ 8.882197][ T178] RBP: ff11000008229000 R08: 1fe2200001a59a5f R09: ff1100000c418b80 [ 8.882446][ T178] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff [ 8.882652][ T178] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000008229000 [ 8.882860][ T178] FS: 00007f1146eff840(0000) GS:ff1100008b205000(0000) knlGS:0000000000000000 [ 8.883102][ T178] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 8.883274][ T178] CR2: 0000000000479648 CR3: 000000000b237006 CR4: 0000000000771ef0 [ 8.883484][ T178] PKRU: 55555554 [ 8.883588][ T178] Call Trace: [ 8.883689][ T178] [ 8.883762][ T178] ? ip6_route_dev_notify (net/ipv6/route.c:6484) [ 8.883900][ T178] rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551) [ 8.884037][ T178] ? notifier_call_chain (kernel/notifier.c:85) [ 8.884174][ T178] rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560) [ 8.884277][ T178] register_netdevice (net/core/dev.c:11488) [ 8.884419][ T178] ? unregister_netdevice_queue (./include/linux/list.h:162) [ 8.884591][ T178] register_netdev (net/core/dev.c:11552) [ 8.884725][ T178] loopback_net_init (drivers/net/loopback.c:218) [ 8.884867][ T178] ops_init (net/core/net_namespace.c:137) [ 8.884971][ T178] setup_net (net/core/net_namespace.c:446) [ 8.885074][ T178] ? unregister_pernet_device (net/core/net_namespace.c:1503) [ 8.885207][ T178] ? lockdep_init_map_type (kernel/locking/lockdep.c:4973) [ 8.885342][ T178] ? mutex_init_lockdep (./include/linux/lockdep.h:135 ./include/linux/lockdep.h:142 kernel/locking/mutex.c:185) [ 8.885485][ T178] copy_net_ns (net/core/net_namespace.c:579) [ 8.885622][ T178] create_new_namespaces (kernel/nsproxy.c:132) [ 8.885763][ T178] unshare_nsproxy_namespaces (kernel/nsproxy.c:234 (discriminator 4)) [ 8.885899][ T178] ksys_unshare (kernel/fork.c:3243) [ 8.886034][ T178] ? walk_process_tree (kernel/fork.c:3036 (discriminator 19)) [ 8.886169][ T178] ? __ia32_sys_open (fs/open.c:1374) [ 8.886310][ T178] __x64_sys_unshare (kernel/fork.c:3317 kernel/fork.c:3315 kernel/fork.c:3315) [ 8.886449][ T178] ? do_syscall_64 (./include/linux/entry-common.h:177 arch/x86/entry/syscall_64.c:89) [ 8.886595][ T178] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 8.886728][ T178] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1)) [ 8.886867][ T178] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3)) [ 8.887002][ T178] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.887170][ T178] RIP: 0033:0x7f11471c1bcb [ 8.887313][ T178] Code: 73 01 c3 48 8b 0d 2d 82 0f 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 10 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d fd 81 0f 00 f7 d8 64 89 01 48 All code ======== 0: 73 01 jae 0x3 2: c3 ret 3: 48 8b 0d 2d 82 0f 00 mov 0xf822d(%rip),%rcx # 0xf8237 a: f7 d8 neg %eax c: 64 89 01 mov %eax,%fs:(%rcx) f: 48 83 c8 ff or $0xffffffffffffffff,%rax 13: c3 ret 14: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 1b: 00 00 00 1e: 90 nop 1f: f3 0f 1e fa endbr64 23: b8 10 01 00 00 mov $0x110,%eax 28: 0f 05 syscall 2a:* 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 30: 73 01 jae 0x33 32: c3 ret 33: 48 8b 0d fd 81 0f 00 mov 0xf81fd(%rip),%rcx # 0xf8237 3a: f7 d8 neg %eax 3c: 64 89 01 mov %eax,%fs:(%rcx) 3f: 48 rex.W Code starting with the faulting instruction =========================================== 0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax 6: 73 01 jae 0x9 8: c3 ret 9: 48 8b 0d fd 81 0f 00 mov 0xf81fd(%rip),%rcx # 0xf820d 10: f7 d8 neg %eax 12: 64 89 01 mov %eax,%fs:(%rcx) 15: 48 rex.W [ 8.887899][ T178] RSP: 002b:00007fffe12d3168 EFLAGS: 00000202 ORIG_RAX: 0000000000000110 [ 8.888103][ T178] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f11471c1bcb [ 8.888303][ T178] RDX: 0000000000000000 RSI: 0000000000477309 RDI: 0000000040000000 [ 8.888512][ T178] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 [ 8.888713][ T178] R10: 0000000000000000 R11: 0000000000000202 R12: 00007fffe12d5390 [ 8.888916][ T178] R13: 0000000000000001 R14: 00007f1146eff6f8 R15: 00007fffe12d6834 | [ 8.961651][ T179] ------------[ cut here ]------------ | [ 8.961911][ T179] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: echo/179 | [ 8.962261][ T179] Modules linked in: netdevsim | [ 8.962887][ T179] Tainted: [W]=WARN [ 8.963017][ T179] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.963255][ T179] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3)) [ 8.963509][ T179] 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 a8 cc 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 a8 cc f0 ff call 0xfffffffffff0cce4 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 a8 cc f0 ff call 0xfffffffffff0ccba 12: b9 .byte 0xb9 13: a6 cmpsb (%rdi),(%rsi) 14: ff (bad) 15: ff .byte 0xff [ 8.964116][ T179] RSP: 0018:ffa00000008574f8 EFLAGS: 00010286 [ 8.964335][ T179] RAX: 00000000ffffffa6 RBX: ff110000090e53c0 RCX: 1ff400000010ae65 [ 8.964598][ T179] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000090e5470 [ 8.964863][ T179] RBP: ff1100000c9c2000 R08: 1fe220000121ca8f R09: ff1100000b3d5248 [ 8.965112][ T179] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff [ 8.965362][ T179] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c9c2000 [ 8.965622][ T179] FS: 00007ff7888e2740(0000) GS:ff1100008b305000(0000) knlGS:0000000000000000 [ 8.965926][ T179] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 8.966139][ T179] CR2: 0000565539a84068 CR3: 0000000004aae001 CR4: 0000000000771ef0 [ 8.966391][ T179] PKRU: 55555554 [ 8.966522][ T179] Call Trace: [ 8.966648][ T179] [ 8.966735][ T179] rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551) [ 8.966914][ T179] rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560) [ 8.967042][ T179] register_netdevice (net/core/dev.c:11488) [ 8.967212][ T179] ? unregister_netdevice_queue (./include/linux/list.h:162) [ 8.967422][ T179] ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452) [ 8.967596][ T179] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim [ 8.967817][ T179] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim [ 8.967987][ T179] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim [ 8.968199][ T179] ? add_timer_on (kernel/time/timer.c:925 (discriminator 5)) [ 8.968369][ T179] ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim [ 8.968585][ T179] ? is_module_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) kernel/module/main.c:3876 (discriminator 2)) [ 8.968760][ T179] ? static_obj (kernel/locking/lockdep.c:858) [ 8.968889][ T179] ? mark_held_locks (kernel/locking/lockdep.c:4325) [ 8.969060][ T179] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim [ 8.969273][ T179] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim [ 8.969453][ T179] ? driver_sysfs_add (drivers/base/dd.c:495) [ 8.969622][ T179] call_driver_probe (drivers/base/dd.c:629) [ 8.969795][ T179] really_probe (drivers/base/dd.c:709) [ 8.969964][ T179] ? driver_probe_device (drivers/base/dd.c:135) [ 8.970131][ T179] __driver_probe_device (drivers/base/dd.c:871) [ 8.970299][ T179] driver_probe_device (drivers/base/dd.c:901) [ 8.970474][ T179] __device_attach_driver (drivers/base/dd.c:1029) [ 8.970643][ T179] bus_for_each_drv (drivers/base/bus.c:500) [ 8.970817][ T179] ? bus_find_device_reverse (drivers/base/bus.c:442) [ 8.970989][ T179] __device_attach (drivers/base/dd.c:1101) [ 8.971158][ T179] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 8.971373][ T179] ? __driver_attach_async_helper (drivers/base/dd.c:1172 (discriminator 1)) [ 8.971717][ T179] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 8.971995][ T179] ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:169 (discriminator 1) kernel/locking/spinlock.c:190 (discriminator 1)) [ 8.972272][ T179] device_initial_probe (drivers/base/dd.c:1156) [ 8.972547][ T179] bus_probe_device (drivers/base/bus.c:613) [ 8.972823][ T179] device_add (drivers/base/core.c:3706) [ 8.973095][ T179] ? __fw_devlink_link_to_consumers.isra.0 (./include/linux/property.h:226 (discriminator 3)) [ 8.973435][ T179] ? __init_waitqueue_head (kernel/sched/wait.c:12) [ 8.973703][ T179] ? pm_runtime_init (drivers/base/power/runtime.c:1859) [ 8.973975][ T179] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim [ 8.974224][ T179] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 8.974395][ T179] ? new_port_store (drivers/net/netdevsim/bus.c:99) netdevsim [ 8.974614][ T179] ? sysfs_file_kobj (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) fs/sysfs/file.c:24 (discriminator 2)) [ 8.974791][ T179] ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24) [ 8.974961][ T179] ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1)) [ 8.975128][ T179] kernfs_fop_write_iter (fs/kernfs/file.c:352) [ 8.975297][ T179] ? kernfs_ops (fs/kernfs/file.c:128) [ 8.975427][ T179] new_sync_write (fs/read_write.c:595) [ 8.975602][ T179] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 8.975776][ T179] ? new_sync_read (./include/linux/ioprio.h:41) [ 8.975948][ T179] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 8.976116][ T179] ? ksys_write (fs/read_write.c:740) [ 8.976289][ T179] vfs_write (fs/read_write.c:688) [ 8.976423][ T179] ksys_write (fs/read_write.c:740) [ 8.976552][ T179] ? __ia32_sys_read (fs/read_write.c:724) [ 8.976722][ T179] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 8.976899][ T179] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 8.977069][ T179] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 8.977237][ T179] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1)) [ 8.977410][ T179] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3)) [ 8.977580][ T179] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.977794][ T179] RIP: 0033:0x7ff78895508e [ 8.977973][ T179] 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 [ 8.978579][ T179] RSP: 002b:00007ffda95b5d90 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 8.978839][ T179] RAX: ffffffffffffffda RBX: 00007ff788ad7580 RCX: 00007ff78895508e [ 8.979091][ T179] RDX: 0000000000000005 RSI: 0000565539a83060 RDI: 0000000000000001 [ 8.979343][ T179] RBP: 00007ffda95b5da0 R08: 0000000000000000 R09: 0000000000000000 [ 8.979602][ T179] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005 [ 8.979860][ T179] R13: 0000000000000005 R14: 0000565539a83060 R15: 00007ff788ad7668 | [ 8.990051][ T179] ------------[ cut here ]------------ | [ 8.990256][ T179] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: echo/179 | [ 8.990604][ T179] Modules linked in: netdevsim | [ 8.991134][ T179] Tainted: [W]=WARN [ 8.991265][ T179] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.991482][ T179] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3)) [ 8.991705][ T179] 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 a8 cc 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 a8 cc f0 ff call 0xfffffffffff0cce4 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 a8 cc f0 ff call 0xfffffffffff0ccba 12: b9 .byte 0xb9 13: a6 cmpsb (%rdi),(%rsi) 14: ff (bad) 15: ff .byte 0xff [ 8.992310][ T179] RSP: 0018:ffa00000008574f8 EFLAGS: 00010286 [ 8.992537][ T179] RAX: 00000000ffffffa6 RBX: ff110000090e5240 RCX: 1ff400000010ae65 [ 8.992799][ T179] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000090e52f0 [ 8.993055][ T179] RBP: ff1100000d132000 R08: 1fe220000121ca5f R09: ff1100000b3d5248 [ 8.993310][ T179] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff [ 8.993570][ T179] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000d132000 [ 8.993833][ T179] FS: 00007ff7888e2740(0000) GS:ff1100008b305000(0000) knlGS:0000000000000000 [ 8.994131][ T179] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 8.994346][ T179] CR2: 0000565539a84068 CR3: 0000000004aae001 CR4: 0000000000771ef0 [ 8.994611][ T179] PKRU: 55555554 [ 8.994741][ T179] Call Trace: [ 8.994878][ T179] [ 8.994967][ T179] rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551) [ 8.995143][ T179] rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560) [ 8.995271][ T179] register_netdevice (net/core/dev.c:11488) [ 8.995484][ T179] ? unregister_netdevice_queue (./include/linux/list.h:162) [ 8.995698][ T179] ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452) [ 8.995877][ T179] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim [ 8.996096][ T179] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim [ 8.996270][ T179] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim [ 8.996486][ T179] ? add_timer_on (kernel/time/timer.c:925 (discriminator 5)) [ 8.996656][ T179] ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim [ 8.996876][ T179] ? is_module_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) kernel/module/main.c:3876 (discriminator 2)) [ 8.997047][ T179] ? static_obj (kernel/locking/lockdep.c:858) [ 8.997176][ T179] ? mark_held_locks (kernel/locking/lockdep.c:4325) [ 8.997349][ T179] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim [ 8.997572][ T179] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim [ 8.997745][ T179] ? driver_sysfs_add (drivers/base/dd.c:495) [ 8.997921][ T179] call_driver_probe (drivers/base/dd.c:629) [ 8.998090][ T179] really_probe (drivers/base/dd.c:709) [ 8.998260][ T179] ? driver_probe_device (drivers/base/dd.c:135) [ 8.998434][ T179] __driver_probe_device (drivers/base/dd.c:871) [ 8.998603][ T179] driver_probe_device (drivers/base/dd.c:901) [ 8.998777][ T179] __device_attach_driver (drivers/base/dd.c:1029) [ 8.998945][ T179] bus_for_each_drv (drivers/base/bus.c:500) [ 8.999115][ T179] ? bus_find_device_reverse (drivers/base/bus.c:442) [ 8.999285][ T179] __device_attach (drivers/base/dd.c:1101) [ 8.999458][ T179] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 8.999627][ T179] ? __driver_attach_async_helper (drivers/base/dd.c:1172 (discriminator 1)) [ 8.999843][ T179] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 9.000014][ T179] ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:169 (discriminator 1) kernel/locking/spinlock.c:190 (discriminator 1)) [ 9.000182][ T179] device_initial_probe (drivers/base/dd.c:1156) [ 9.000349][ T179] bus_probe_device (drivers/base/bus.c:613) [ 9.000523][ T179] device_add (drivers/base/core.c:3706) [ 9.000692][ T179] ? __fw_devlink_link_to_consumers.isra.0 (./include/linux/property.h:226 (discriminator 3)) [ 9.000903][ T179] ? __init_waitqueue_head (kernel/sched/wait.c:12) [ 9.001070][ T179] ? pm_runtime_init (drivers/base/power/runtime.c:1859) [ 9.001238][ T179] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim [ 9.001455][ T179] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 9.001623][ T179] ? new_port_store (drivers/net/netdevsim/bus.c:99) netdevsim [ 9.001837][ T179] ? sysfs_file_kobj (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) fs/sysfs/file.c:24 (discriminator 2)) [ 9.002006][ T179] ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24) [ 9.002173][ T179] ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1)) [ 9.002342][ T179] kernfs_fop_write_iter (fs/kernfs/file.c:352) [ 9.002515][ T179] ? kernfs_ops (fs/kernfs/file.c:128) [ 9.002644][ T179] new_sync_write (fs/read_write.c:595) [ 9.002819][ T179] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 9.002987][ T179] ? new_sync_read (./include/linux/ioprio.h:41) [ 9.003155][ T179] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 9.003324][ T179] ? ksys_write (fs/read_write.c:740) [ 9.003501][ T179] vfs_write (fs/read_write.c:688) [ 9.003629][ T179] ksys_write (fs/read_write.c:740) [ 9.003763][ T179] ? __ia32_sys_read (fs/read_write.c:724) [ 9.003933][ T179] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 9.004103][ T179] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 9.004272][ T179] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 9.004445][ T179] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1)) [ 9.004614][ T179] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3)) [ 9.004788][ T179] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.004999][ T179] RIP: 0033:0x7ff78895508e [ 9.005176][ T179] 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 [ 9.005789][ T179] RSP: 002b:00007ffda95b5d90 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 9.006046][ T179] RAX: ffffffffffffffda RBX: 00007ff788ad7580 RCX: 00007ff78895508e [ 9.006301][ T179] RDX: 0000000000000005 RSI: 0000565539a83060 RDI: 0000000000000001 [ 9.006559][ T179] RBP: 00007ffda95b5da0 R08: 0000000000000000 R09: 0000000000000000 [ 9.006814][ T179] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005 [ 9.007066][ T179] R13: 0000000000000005 R14: 0000565539a83060 R15: 00007ff788ad7668 | [ 9.018480][ T179] ------------[ cut here ]------------ | [ 9.018680][ T179] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: echo/179 | [ 9.019023][ T179] Modules linked in: netdevsim | [ 9.019544][ T179] Tainted: [W]=WARN [ 9.019675][ T179] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.019895][ T179] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3)) [ 9.020118][ T179] 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 a8 cc 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 a8 cc f0 ff call 0xfffffffffff0cce4 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 a8 cc f0 ff call 0xfffffffffff0ccba 12: b9 .byte 0xb9 13: a6 cmpsb (%rdi),(%rsi) 14: ff (bad) 15: ff .byte 0xff [ 9.020725][ T179] RSP: 0018:ffa00000008574f8 EFLAGS: 00010286 [ 9.020944][ T179] RAX: 00000000ffffffa6 RBX: ff110000090ac340 RCX: 1ff400000010ae65 [ 9.021199][ T179] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff110000090ac3f0 [ 9.021459][ T179] RBP: ff11000004fc2000 R08: 1fe220000121587f R09: ff1100000b3d5248 [ 9.021714][ T179] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff [ 9.021973][ T179] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000004fc2000 [ 9.022227][ T179] FS: 00007ff7888e2740(0000) GS:ff1100008b305000(0000) knlGS:0000000000000000 [ 9.022532][ T179] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 9.022748][ T179] CR2: 0000565539a84068 CR3: 0000000004aae001 CR4: 0000000000771ef0 [ 9.023009][ T179] PKRU: 55555554 [ 9.023137][ T179] Call Trace: [ 9.023266][ T179] [ 9.023353][ T179] rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551) [ 9.023533][ T179] rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560) [ 9.023663][ T179] register_netdevice (net/core/dev.c:11488) [ 9.023838][ T179] ? unregister_netdevice_queue (./include/linux/list.h:162) [ 9.024047][ T179] ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452) [ 9.024221][ T179] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim [ 9.024445][ T179] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim [ 9.024617][ T179] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim [ 9.024835][ T179] ? add_timer_on (kernel/time/timer.c:925 (discriminator 5)) [ 9.025007][ T179] ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim [ 9.025220][ T179] ? is_module_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) kernel/module/main.c:3876 (discriminator 2)) [ 9.025390][ T179] ? static_obj (kernel/locking/lockdep.c:858) [ 9.025524][ T179] ? mark_held_locks (kernel/locking/lockdep.c:4325) [ 9.025695][ T179] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim [ 9.025915][ T179] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim [ 9.026090][ T179] ? driver_sysfs_add (drivers/base/dd.c:495) [ 9.026260][ T179] call_driver_probe (drivers/base/dd.c:629) [ 9.026438][ T179] really_probe (drivers/base/dd.c:709) [ 9.026659][ T179] ? driver_probe_device (drivers/base/dd.c:135) [ 9.026833][ T179] __driver_probe_device (drivers/base/dd.c:871) [ 9.027002][ T179] driver_probe_device (drivers/base/dd.c:901) [ 9.027172][ T179] __device_attach_driver (drivers/base/dd.c:1029) [ 9.027342][ T179] bus_for_each_drv (drivers/base/bus.c:500) [ 9.027518][ T179] ? bus_find_device_reverse (drivers/base/bus.c:442) [ 9.027693][ T179] __device_attach (drivers/base/dd.c:1101) [ 9.027866][ T179] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.028033][ T179] ? __driver_attach_async_helper (drivers/base/dd.c:1172 (discriminator 1)) [ 9.028242][ T179] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 9.028420][ T179] ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:169 (discriminator 1) kernel/locking/spinlock.c:190 (discriminator 1)) [ 9.028594][ T179] device_initial_probe (drivers/base/dd.c:1156) [ 9.028770][ T179] bus_probe_device (drivers/base/bus.c:613) [ 9.028941][ T179] device_add (drivers/base/core.c:3706) [ 9.029113][ T179] ? __fw_devlink_link_to_consumers.isra.0 (./include/linux/property.h:226 (discriminator 3)) [ 9.029322][ T179] ? __init_waitqueue_head (kernel/sched/wait.c:12) [ 9.029497][ T179] ? pm_runtime_init (drivers/base/power/runtime.c:1859) [ 9.029672][ T179] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim [ 9.029892][ T179] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 9.030063][ T179] ? new_port_store (drivers/net/netdevsim/bus.c:99) netdevsim [ 9.030275][ T179] ? sysfs_file_kobj (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) fs/sysfs/file.c:24 (discriminator 2)) [ 9.030452][ T179] ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24) [ 9.030625][ T179] ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1)) [ 9.030801][ T179] kernfs_fop_write_iter (fs/kernfs/file.c:352) [ 9.030971][ T179] ? kernfs_ops (fs/kernfs/file.c:128) [ 9.031100][ T179] new_sync_write (fs/read_write.c:595) [ 9.031275][ T179] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 9.031450][ T179] ? new_sync_read (./include/linux/ioprio.h:41) [ 9.031621][ T179] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 9.031795][ T179] ? ksys_write (fs/read_write.c:740) [ 9.031970][ T179] vfs_write (fs/read_write.c:688) [ 9.032099][ T179] ksys_write (fs/read_write.c:740) [ 9.032228][ T179] ? __ia32_sys_read (fs/read_write.c:724) [ 9.032399][ T179] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 9.032578][ T179] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 9.032748][ T179] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 9.032921][ T179] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1)) [ 9.033091][ T179] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3)) [ 9.033264][ T179] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.033480][ T179] RIP: 0033:0x7ff78895508e [ 9.033656][ T179] 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 [ 9.034264][ T179] RSP: 002b:00007ffda95b5d90 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 9.034527][ T179] RAX: ffffffffffffffda RBX: 00007ff788ad7580 RCX: 00007ff78895508e [ 9.034782][ T179] RDX: 0000000000000005 RSI: 0000565539a83060 RDI: 0000000000000001 [ 9.035037][ T179] RBP: 00007ffda95b5da0 R08: 0000000000000000 R09: 0000000000000000 [ 9.035290][ T179] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005 [ 9.035545][ T179] R13: 0000000000000005 R14: 0000565539a83060 R15: 00007ff788ad7668 | [ 9.045971][ T179] ------------[ cut here ]------------ | [ 9.046173][ T179] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: echo/179 | [ 9.046526][ T179] Modules linked in: netdevsim | [ 9.047058][ T179] Tainted: [W]=WARN [ 9.047188][ T179] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.047409][ T179] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3)) [ 9.047632][ T179] 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 a8 cc 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 a8 cc f0 ff call 0xfffffffffff0cce4 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 a8 cc f0 ff call 0xfffffffffff0ccba 12: b9 .byte 0xb9 13: a6 cmpsb (%rdi),(%rsi) 14: ff (bad) 15: ff .byte 0xff [ 9.048239][ T179] RSP: 0018:ffa00000008574f8 EFLAGS: 00010286 [ 9.048461][ T179] RAX: 00000000ffffffa6 RBX: ff11000005b541c0 RCX: 1ff400000010ae65 [ 9.048719][ T179] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000005b54270 [ 9.048977][ T179] RBP: ff1100000c462000 R08: 1fe2200000b6a84f R09: ff1100000b3d5248 [ 9.049229][ T179] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000ffffffff [ 9.049490][ T179] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000c462000 [ 9.049751][ T179] FS: 00007ff7888e2740(0000) GS:ff1100008b305000(0000) knlGS:0000000000000000 [ 9.050062][ T179] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 9.050277][ T179] CR2: 0000565539a84068 CR3: 0000000004aae001 CR4: 0000000000771ef0 [ 9.050582][ T179] PKRU: 55555554 [ 9.050711][ T179] Call Trace: [ 9.050846][ T179] [ 9.050935][ T179] rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551) [ 9.051106][ T179] rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560) [ 9.051235][ T179] register_netdevice (net/core/dev.c:11488) [ 9.051414][ T179] ? unregister_netdevice_queue (./include/linux/list.h:162) [ 9.051631][ T179] ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452) [ 9.051809][ T179] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim [ 9.052025][ T179] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim [ 9.052197][ T179] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim [ 9.052413][ T179] ? add_timer_on (kernel/time/timer.c:925 (discriminator 5)) [ 9.052586][ T179] ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim [ 9.052801][ T179] ? is_module_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) kernel/module/main.c:3876 (discriminator 2)) [ 9.052972][ T179] ? static_obj (kernel/locking/lockdep.c:858) [ 9.053099][ T179] ? mark_held_locks (kernel/locking/lockdep.c:4325) [ 9.053272][ T179] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim [ 9.053494][ T179] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim [ 9.053667][ T179] ? driver_sysfs_add (drivers/base/dd.c:495) [ 9.053844][ T179] call_driver_probe (drivers/base/dd.c:629) [ 9.054013][ T179] really_probe (drivers/base/dd.c:709) [ 9.054181][ T179] ? driver_probe_device (drivers/base/dd.c:135) [ 9.054349][ T179] __driver_probe_device (drivers/base/dd.c:871) [ 9.054524][ T179] driver_probe_device (drivers/base/dd.c:901) [ 9.054692][ T179] __device_attach_driver (drivers/base/dd.c:1029) [ 9.054867][ T179] bus_for_each_drv (drivers/base/bus.c:500) [ 9.055036][ T179] ? bus_find_device_reverse (drivers/base/bus.c:442) [ 9.055208][ T179] __device_attach (drivers/base/dd.c:1101) [ 9.055376][ T179] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.055548][ T179] ? __driver_attach_async_helper (drivers/base/dd.c:1172 (discriminator 1)) [ 9.055763][ T179] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 9.055933][ T179] ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:169 (discriminator 1) kernel/locking/spinlock.c:190 (discriminator 1)) [ 9.056101][ T179] device_initial_probe (drivers/base/dd.c:1156) [ 9.056270][ T179] bus_probe_device (drivers/base/bus.c:613) [ 9.056446][ T179] device_add (drivers/base/core.c:3706) [ 9.056616][ T179] ? __fw_devlink_link_to_consumers.isra.0 (./include/linux/property.h:226 (discriminator 3)) [ 9.056830][ T179] ? __init_waitqueue_head (kernel/sched/wait.c:12) [ 9.056999][ T179] ? pm_runtime_init (drivers/base/power/runtime.c:1859) [ 9.057169][ T179] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim [ 9.057381][ T179] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 9.057555][ T179] ? new_port_store (drivers/net/netdevsim/bus.c:99) netdevsim [ 9.057773][ T179] ? sysfs_file_kobj (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) fs/sysfs/file.c:24 (discriminator 2)) [ 9.057945][ T179] ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24) [ 9.058115][ T179] ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1)) [ 9.058282][ T179] kernfs_fop_write_iter (fs/kernfs/file.c:352) [ 9.058732][ T179] ? kernfs_ops (fs/kernfs/file.c:128) [ 9.058869][ T179] new_sync_write (fs/read_write.c:595) [ 9.059039][ T179] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 9.059210][ T179] ? new_sync_read (./include/linux/ioprio.h:41) [ 9.059381][ T179] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 9.059556][ T179] ? ksys_write (fs/read_write.c:740) [ 9.059733][ T179] vfs_write (fs/read_write.c:688) [ 9.059867][ T179] ksys_write (fs/read_write.c:740) [ 9.059996][ T179] ? __ia32_sys_read (fs/read_write.c:724) [ 9.060166][ T179] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 9.060337][ T179] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 9.060512][ T179] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 9.060681][ T179] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1)) [ 9.060854][ T179] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3)) [ 9.061023][ T179] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.061235][ T179] RIP: 0033:0x7ff78895508e [ 9.061415][ T179] 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 [ 9.062018][ T179] RSP: 002b:00007ffda95b5d90 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 9.062273][ T179] RAX: ffffffffffffffda RBX: 00007ff788ad7580 RCX: 00007ff78895508e [ 9.062532][ T179] RDX: 0000000000000005 RSI: 0000565539a83060 RDI: 0000000000000001 [ 9.062788][ T179] RBP: 00007ffda95b5da0 R08: 0000000000000000 R09: 0000000000000000 [ 9.063042][ T179] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000005 [ 9.063295][ T179] R13: 0000000000000005 R14: 0000565539a83060 R15: 00007ff788ad7668 | [ 9.642592][ T165] ------------[ cut here ]------------ | [ 9.642909][ T165] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink_in_netn/165 | [ 9.643263][ T165] Modules linked in: netdevsim | [ 9.644188][ T165] Tainted: [W]=WARN [ 9.644352][ T165] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.644648][ T165] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3)) [ 9.644901][ T165] 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 a8 cc 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 a8 cc f0 ff call 0xfffffffffff0cce4 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 a8 cc f0 ff call 0xfffffffffff0ccba 12: b9 .byte 0xb9 13: a6 cmpsb (%rdi),(%rsi) 14: ff (bad) 15: ff .byte 0xff [ 9.645515][ T165] RSP: 0018:ffa0000000837728 EFLAGS: 00010286 [ 9.645752][ T165] RAX: 00000000ffffffa6 RBX: ff11000004b93e40 RCX: 1ff4000000106eab [ 9.646028][ T165] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000004b93ef0 [ 9.646293][ T165] RBP: ff1100000c462000 R08: 1fe22000009727df R09: ff11000004d0d248 [ 9.646581][ T165] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff [ 9.646855][ T165] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 9.647127][ T165] FS: 00007fbde40f0b80(0000) GS:ff1100008b285000(0000) knlGS:0000000000000000 [ 9.647450][ T165] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 9.647688][ T165] CR2: 00005590e9ff8040 CR3: 000000000c60d001 CR4: 0000000000771ef0 [ 9.647964][ T165] PKRU: 55555554 [ 9.648122][ T165] Call Trace: [ 9.648281][ T165] [ 9.648419][ T165] unregister_netdevice_many_notify (net/core/dev.c:12439) [ 9.648672][ T165] ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3)) [ 9.648912][ T165] ? __rtnl_unlock (net/core/rtnetlink.c:143) [ 9.649109][ T165] ? netdev_run_todo (net/core/dev.c:11703) [ 9.649306][ T165] ? ww_mutex_lock (kernel/locking/mutex.c:933) [ 9.649518][ T165] ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65) [ 9.649717][ T165] unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299) [ 9.649920][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 9.650115][ T165] ? unregister_netdevice_many (net/core/dev.c:12497) [ 9.650314][ T165] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim [ 9.650529][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 9.650727][ T165] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim [ 9.650975][ T165] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim [ 9.651210][ T165] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim [ 9.651422][ T165] device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375) [ 9.651660][ T165] bus_remove_device (drivers/base/bus.c:657) [ 9.651885][ T165] ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1)) [ 9.652088][ T165] ? device_remove_file (drivers/base/core.c:3073) [ 9.652292][ T165] device_del (drivers/base/core.c:3895) [ 9.652473][ T165] ? __device_link_del (./include/linux/kobject.h:89) [ 9.652677][ T165] ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1)) [ 9.652892][ T165] device_unregister (drivers/base/core.c:3936) [ 9.653089][ T165] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim [ 9.653325][ T165] ? sysfs_file_kobj (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) fs/sysfs/file.c:24 (discriminator 2)) [ 9.653533][ T165] ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim [ 9.653787][ T165] ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24) [ 9.653986][ T165] ? sysfs_kf_write (fs/sysfs/file.c:137) [ 9.654182][ T165] kernfs_fop_write_iter (fs/kernfs/file.c:352) [ 9.654380][ T165] ? kernfs_ops (fs/kernfs/file.c:128) [ 9.654557][ T165] new_sync_write (fs/read_write.c:595) [ 9.654765][ T165] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 9.654962][ T165] ? new_sync_read (./include/linux/ioprio.h:41) [ 9.655175][ T165] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 9.655375][ T165] ? ksys_write (fs/read_write.c:740) [ 9.655591][ T165] vfs_write (fs/read_write.c:688) [ 9.655754][ T165] ksys_write (fs/read_write.c:740) [ 9.655924][ T165] ? __ia32_sys_read (fs/read_write.c:724) [ 9.656132][ T165] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 9.656330][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 9.656540][ T165] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 9.656738][ T165] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1)) [ 9.656959][ T165] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3)) [ 9.657163][ T165] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.657416][ T165] RIP: 0033:0x7fbde416208e [ 9.657621][ T165] 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 [ 9.658203][ T165] RSP: 002b:00007ffe4fccdb60 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 9.658489][ T165] RAX: ffffffffffffffda RBX: 00007fbde42e4580 RCX: 00007fbde416208e [ 9.658773][ T165] RDX: 0000000000000003 RSI: 00005590fe6f4830 RDI: 0000000000000001 [ 9.659046][ T165] RBP: 00007ffe4fccdb70 R08: 0000000000000000 R09: 0000000000000000 [ 9.659315][ T165] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003 [ 9.659600][ T165] R13: 0000000000000003 R14: 00005590fe6f4830 R15: 0000000000000000 | [ 9.678101][ T165] ------------[ cut here ]------------ | [ 9.678355][ T165] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink_in_netn/165 | [ 9.678932][ T165] Modules linked in: netdevsim | [ 9.679574][ T165] Tainted: [W]=WARN [ 9.679749][ T165] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.680001][ T165] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3)) [ 9.680245][ T165] 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 a8 cc 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 a8 cc f0 ff call 0xfffffffffff0cce4 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 a8 cc f0 ff call 0xfffffffffff0ccba 12: b9 .byte 0xb9 13: a6 cmpsb (%rdi),(%rsi) 14: ff (bad) 15: ff .byte 0xff [ 9.680879][ T165] RSP: 0018:ffa0000000837728 EFLAGS: 00010286 [ 9.681125][ T165] RAX: 00000000ffffffa6 RBX: ff1100000d2ccac0 RCX: 1ff4000000106eab [ 9.681397][ T165] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d2ccb70 [ 9.681683][ T165] RBP: ff11000004fc2000 R08: 1fe2200001a5996f R09: ff11000004d0d248 [ 9.681960][ T165] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff [ 9.682227][ T165] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 9.682515][ T165] FS: 00007fbde40f0b80(0000) GS:ff1100008b285000(0000) knlGS:0000000000000000 [ 9.682832][ T165] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 9.683067][ T165] CR2: 00005590e9ff8040 CR3: 000000000c60d001 CR4: 0000000000771ef0 [ 9.683337][ T165] PKRU: 55555554 [ 9.683511][ T165] Call Trace: [ 9.683673][ T165] [ 9.683805][ T165] unregister_netdevice_many_notify (net/core/dev.c:12439) [ 9.684043][ T165] ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3)) [ 9.684282][ T165] ? __rtnl_unlock (net/core/rtnetlink.c:143) [ 9.684494][ T165] ? netdev_run_todo (net/core/dev.c:11703) [ 9.684692][ T165] ? ww_mutex_lock (kernel/locking/mutex.c:933) [ 9.684898][ T165] ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65) [ 9.685100][ T165] unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299) [ 9.685302][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 9.685513][ T165] ? unregister_netdevice_many (net/core/dev.c:12497) [ 9.685713][ T165] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim [ 9.685923][ T165] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim [ 9.686160][ T165] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim [ 9.686397][ T165] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim [ 9.686663][ T165] device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375) [ 9.686908][ T165] bus_remove_device (drivers/base/bus.c:657) [ 9.687107][ T165] ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1)) [ 9.687303][ T165] ? device_remove_file (drivers/base/core.c:3073) [ 9.687518][ T165] device_del (drivers/base/core.c:3895) [ 9.687680][ T165] ? __device_link_del (./include/linux/kobject.h:89) [ 9.687886][ T165] ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1)) [ 9.688083][ T165] device_unregister (drivers/base/core.c:3936) [ 9.688283][ T165] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim [ 9.688531][ T165] ? sysfs_file_kobj (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) fs/sysfs/file.c:24 (discriminator 2)) [ 9.688728][ T165] ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim [ 9.688971][ T165] ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24) [ 9.689179][ T165] ? sysfs_kf_write (fs/sysfs/file.c:137) [ 9.689378][ T165] kernfs_fop_write_iter (fs/kernfs/file.c:352) [ 9.689590][ T165] ? kernfs_ops (fs/kernfs/file.c:128) [ 9.689753][ T165] new_sync_write (fs/read_write.c:595) [ 9.689961][ T165] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 9.690159][ T165] ? new_sync_read (./include/linux/ioprio.h:41) [ 9.690359][ T165] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 9.690574][ T165] ? ksys_write (fs/read_write.c:740) [ 9.690785][ T165] vfs_write (fs/read_write.c:688) [ 9.690949][ T165] ksys_write (fs/read_write.c:740) [ 9.691110][ T165] ? __ia32_sys_read (fs/read_write.c:724) [ 9.691309][ T165] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 9.691520][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 9.691725][ T165] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 9.691932][ T165] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1)) [ 9.692129][ T165] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3)) [ 9.692328][ T165] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.692576][ T165] RIP: 0033:0x7fbde416208e [ 9.692790][ T165] 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 [ 9.693365][ T165] RSP: 002b:00007ffe4fccdb60 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 9.693653][ T165] RAX: ffffffffffffffda RBX: 00007fbde42e4580 RCX: 00007fbde416208e [ 9.693938][ T165] RDX: 0000000000000003 RSI: 00005590fe6f4830 RDI: 0000000000000001 [ 9.694216][ T165] RBP: 00007ffe4fccdb70 R08: 0000000000000000 R09: 0000000000000000 [ 9.694513][ T165] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003 [ 9.694791][ T165] R13: 0000000000000003 R14: 00005590fe6f4830 R15: 0000000000000000 | [ 9.715380][ T165] ------------[ cut here ]------------ | [ 9.715641][ T165] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink_in_netn/165 | [ 9.715994][ T165] Modules linked in: netdevsim | [ 9.716895][ T165] Tainted: [W]=WARN [ 9.717056][ T165] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.717300][ T165] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3)) [ 9.717553][ T165] 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 a8 cc 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 a8 cc f0 ff call 0xfffffffffff0cce4 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 a8 cc f0 ff call 0xfffffffffff0ccba 12: b9 .byte 0xb9 13: a6 cmpsb (%rdi),(%rsi) 14: ff (bad) 15: ff .byte 0xff [ 9.718135][ T165] RSP: 0018:ffa0000000837728 EFLAGS: 00010286 [ 9.718368][ T165] RAX: 00000000ffffffa6 RBX: ff1100000febe7c0 RCX: 1ff4000000106eab [ 9.718648][ T165] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000febe870 [ 9.718924][ T165] RBP: ff1100000d132000 R08: 1fe2200001fd7d0f R09: ff11000004d0d248 [ 9.719192][ T165] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff [ 9.719477][ T165] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 9.719767][ T165] FS: 00007fbde40f0b80(0000) GS:ff1100008b285000(0000) knlGS:0000000000000000 [ 9.720075][ T165] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 9.720309][ T165] CR2: 00005590e9ff8040 CR3: 000000000c60d001 CR4: 0000000000771ef0 [ 9.720601][ T165] PKRU: 55555554 [ 9.720765][ T165] Call Trace: [ 9.720925][ T165] [ 9.721049][ T165] unregister_netdevice_many_notify (net/core/dev.c:12439) [ 9.721286][ T165] ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3)) [ 9.721530][ T165] ? __rtnl_unlock (net/core/rtnetlink.c:143) [ 9.721728][ T165] ? netdev_run_todo (net/core/dev.c:11703) [ 9.721931][ T165] ? ww_mutex_lock (kernel/locking/mutex.c:933) [ 9.722133][ T165] ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65) [ 9.722333][ T165] unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299) [ 9.722544][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 9.722741][ T165] ? unregister_netdevice_many (net/core/dev.c:12497) [ 9.722947][ T165] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim [ 9.723154][ T165] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim [ 9.723388][ T165] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim [ 9.723643][ T165] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim [ 9.723855][ T165] device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375) [ 9.724088][ T165] bus_remove_device (drivers/base/bus.c:657) [ 9.724288][ T165] ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1)) [ 9.724493][ T165] ? device_remove_file (drivers/base/core.c:3073) [ 9.724704][ T165] device_del (drivers/base/core.c:3895) [ 9.724875][ T165] ? __device_link_del (./include/linux/kobject.h:89) [ 9.725077][ T165] ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1)) [ 9.725294][ T165] device_unregister (drivers/base/core.c:3936) [ 9.725508][ T165] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim [ 9.725749][ T165] ? sysfs_file_kobj (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) fs/sysfs/file.c:24 (discriminator 2)) [ 9.725957][ T165] ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim [ 9.726195][ T165] ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24) [ 9.726395][ T165] ? sysfs_kf_write (fs/sysfs/file.c:137) [ 9.726611][ T165] kernfs_fop_write_iter (fs/kernfs/file.c:352) [ 9.726822][ T165] ? kernfs_ops (fs/kernfs/file.c:128) [ 9.726984][ T165] new_sync_write (fs/read_write.c:595) [ 9.727187][ T165] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 9.727387][ T165] ? new_sync_read (./include/linux/ioprio.h:41) [ 9.727600][ T165] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 9.727807][ T165] ? ksys_write (fs/read_write.c:740) [ 9.728011][ T165] vfs_write (fs/read_write.c:688) [ 9.728180][ T165] ksys_write (fs/read_write.c:740) [ 9.728344][ T165] ? __ia32_sys_read (fs/read_write.c:724) [ 9.728557][ T165] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 9.728767][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 9.728970][ T165] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 9.729169][ T165] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1)) [ 9.729368][ T165] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3)) [ 9.729582][ T165] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.729839][ T165] RIP: 0033:0x7fbde416208e [ 9.730044][ T165] 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 [ 9.730643][ T165] RSP: 002b:00007ffe4fccdb60 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 9.730928][ T165] RAX: ffffffffffffffda RBX: 00007fbde42e4580 RCX: 00007fbde416208e [ 9.731205][ T165] RDX: 0000000000000003 RSI: 00005590fe6f4830 RDI: 0000000000000001 [ 9.731493][ T165] RBP: 00007ffe4fccdb70 R08: 0000000000000000 R09: 0000000000000000 [ 9.731775][ T165] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003 [ 9.732043][ T165] R13: 0000000000000003 R14: 00005590fe6f4830 R15: 0000000000000000 | [ 9.749312][ T165] ------------[ cut here ]------------ | [ 9.749675][ T165] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: devlink_in_netn/165 | [ 9.750038][ T165] Modules linked in: netdevsim | [ 9.750640][ T165] Tainted: [W]=WARN [ 9.750842][ T165] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.751085][ T165] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3)) [ 9.751349][ T165] 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 a8 cc 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 a8 cc f0 ff call 0xfffffffffff0cce4 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 a8 cc f0 ff call 0xfffffffffff0ccba 12: b9 .byte 0xb9 13: a6 cmpsb (%rdi),(%rsi) 14: ff (bad) 15: ff .byte 0xff [ 9.751951][ T165] RSP: 0018:ffa0000000837728 EFLAGS: 00010286 [ 9.752192][ T165] RAX: 00000000ffffffa6 RBX: ff1100000febf9c0 RCX: 1ff4000000106eab [ 9.752483][ T165] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000febfa70 [ 9.752766][ T165] RBP: ff1100000c9c2000 R08: 1fe2200001fd7f4f R09: ff11000004d0d248 [ 9.753042][ T165] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff [ 9.753310][ T165] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 9.753595][ T165] FS: 00007fbde40f0b80(0000) GS:ff1100008b285000(0000) knlGS:0000000000000000 [ 9.753915][ T165] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 9.754149][ T165] CR2: 00005590e9ff8040 CR3: 000000000c60d001 CR4: 0000000000771ef0 [ 9.754447][ T165] PKRU: 55555554 [ 9.754612][ T165] Call Trace: [ 9.754780][ T165] [ 9.754908][ T165] unregister_netdevice_many_notify (net/core/dev.c:12439) [ 9.755161][ T165] ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3)) [ 9.755393][ T165] ? __rtnl_unlock (net/core/rtnetlink.c:143) [ 9.755606][ T165] ? netdev_run_todo (net/core/dev.c:11703) [ 9.755809][ T165] ? ww_mutex_lock (kernel/locking/mutex.c:933) [ 9.756005][ T165] ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65) [ 9.756203][ T165] unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299) [ 9.756400][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 9.756611][ T165] ? unregister_netdevice_many (net/core/dev.c:12497) [ 9.756862][ T165] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim [ 9.757069][ T165] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim [ 9.757306][ T165] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim [ 9.757556][ T165] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim [ 9.757754][ T165] device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375) [ 9.757996][ T165] bus_remove_device (drivers/base/bus.c:657) [ 9.758196][ T165] ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1)) [ 9.758390][ T165] ? device_remove_file (drivers/base/core.c:3073) [ 9.758602][ T165] device_del (drivers/base/core.c:3895) [ 9.758773][ T165] ? __device_link_del (./include/linux/kobject.h:89) [ 9.758974][ T165] ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1)) [ 9.759169][ T165] device_unregister (drivers/base/core.c:3936) [ 9.759366][ T165] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim [ 9.759614][ T165] ? sysfs_file_kobj (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) ./include/linux/rcupdate.h:1181 (discriminator 2) fs/sysfs/file.c:24 (discriminator 2)) [ 9.759824][ T165] ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim [ 9.760057][ T165] ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24) [ 9.760261][ T165] ? sysfs_kf_write (fs/sysfs/file.c:137) [ 9.760472][ T165] kernfs_fop_write_iter (fs/kernfs/file.c:352) [ 9.760667][ T165] ? kernfs_ops (fs/kernfs/file.c:128) [ 9.760835][ T165] new_sync_write (fs/read_write.c:595) [ 9.761038][ T165] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 9.761238][ T165] ? new_sync_read (./include/linux/ioprio.h:41) [ 9.761450][ T165] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 9.761647][ T165] ? ksys_write (fs/read_write.c:740) [ 9.761854][ T165] vfs_write (fs/read_write.c:688) [ 9.762015][ T165] ksys_write (fs/read_write.c:740) [ 9.762175][ T165] ? __ia32_sys_read (fs/read_write.c:724) [ 9.762367][ T165] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 9.762576][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 9.762782][ T165] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 9.762977][ T165] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1)) [ 9.763171][ T165] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3)) [ 9.763367][ T165] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.763609][ T165] RIP: 0033:0x7fbde416208e [ 9.763816][ T165] 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 [ 9.764384][ T165] RSP: 002b:00007ffe4fccdb60 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 9.764665][ T165] RAX: ffffffffffffffda RBX: 00007fbde42e4580 RCX: 00007fbde416208e [ 9.764942][ T165] RDX: 0000000000000003 RSI: 00005590fe6f4830 RDI: 0000000000000001 [ 9.765223][ T165] RBP: 00007ffe4fccdb70 R08: 0000000000000000 R09: 0000000000000000 [ 9.765507][ T165] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003 [ 9.765788][ T165] R13: 0000000000000003 R14: 00005590fe6f4830 R15: 0000000000000000 | [ 9.829101][ T12] ------------[ cut here ]------------ | [ 9.829298][ T12] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: 0/12 | [ 9.829616][ T12] Modules linked in: netdevsim | [ 9.830076][ T12] Tainted: [W]=WARN [ 9.830171][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.830336][ T12] Workqueue: netns cleanup_net [ 9.830486][ T12] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3)) [ 9.830656][ T12] 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 a8 cc 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 a8 cc f0 ff call 0xfffffffffff0cce4 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 a8 cc f0 ff call 0xfffffffffff0ccba 12: b9 .byte 0xb9 13: a6 cmpsb (%rdi),(%rsi) 14: ff (bad) 15: ff .byte 0xff [ 9.831104][ T12] RSP: 0018:ffa00000000c7878 EFLAGS: 00010286 [ 9.831270][ T12] RAX: 00000000ffffffa6 RBX: ff1100000d34a1c0 RCX: 1ff4000000018ed5 [ 9.831464][ T12] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000d34a270 [ 9.831702][ T12] RBP: ff11000008229000 R08: 1fe2200001a6944f R09: ff11000001b051d0 [ 9.831895][ T12] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff [ 9.832083][ T12] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 9.832278][ T12] FS: 0000000000000000(0000) GS:ff1100008b185000(0000) knlGS:0000000000000000 [ 9.832505][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 9.832664][ T12] CR2: 00007f431bc85574 CR3: 0000000016b39003 CR4: 0000000000771ef0 [ 9.832857][ T12] PKRU: 55555554 [ 9.832953][ T12] Call Trace: [ 9.833047][ T12] [ 9.833113][ T12] unregister_netdevice_many_notify (net/core/dev.c:12439) [ 9.833344][ T12] ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3)) [ 9.833709][ T12] ? perf_trace_sched_switch (./include/linux/list.h:1021 (discriminator 3)) [ 9.833921][ T12] default_device_exit_batch (net/core/dev.c:12497 net/core/dev.c:13089) [ 9.834093][ T12] ? generic_xdp_install (./include/linux/netdevice.h:5659) [ 9.834221][ T12] ? ipmr_free_table (net/ipv4/ipmr.c:453) [ 9.834347][ T12] ? unregister_netdev (./include/net/net_namespace.h:419 (discriminator 7)) [ 9.834551][ T12] ? rtnl_is_locked (net/core/rtnetlink.c:169) [ 9.834674][ T12] ? nexthop_net_exit_rtnl (./include/linux/rtnetlink.h:150 (discriminator 1) net/ipv4/nexthop.c:4145 (discriminator 1)) [ 9.834805][ T12] ops_undo_list (net/core/net_namespace.c:205 net/core/net_namespace.c:252) [ 9.834931][ T12] ? rtnl_net_dumpid_one (net/core/net_namespace.c:1094) [ 9.835051][ T12] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 9.835182][ T12] cleanup_net (net/core/net_namespace.c:702) [ 9.835310][ T12] ? net_passive_dec (./include/linux/llist.h:241) [ 9.835483][ T12] ? process_one_work (kernel/workqueue.c:3290 (discriminator 2)) [ 9.835609][ T12] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22)) [ 9.835785][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 9.835914][ T12] process_one_work (kernel/workqueue.c:3314) [ 9.836042][ T12] ? pwq_dec_nr_in_flight (kernel/workqueue.c:1822 (discriminator 4)) [ 9.836165][ T12] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 9.836295][ T12] worker_thread (kernel/workqueue.c:3397 kernel/workqueue.c:3478) [ 9.836471][ T12] ? rescuer_thread (./include/linux/list.h:404 (discriminator 3)) [ 9.836594][ T12] kthread (kernel/kthread.c:436) [ 9.836700][ T12] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 9.836857][ T12] ? kthread_affine_node (kernel/kthread.c:378) [ 9.836985][ T12] ret_from_fork (arch/x86/kernel/process.c:158) [ 9.837112][ T12] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37) [ 9.837266][ T12] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 9.837390][ T12] ? kthread_affine_node (kernel/kthread.c:378) Finger prints: rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:nsim_init_netdevsim:nsim_create rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:default_device_exit_batch:ops_undo_list:cleanup_net rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:register_netdev:loopback_net_init rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:unregister_netdevice_queue:nsim_destroy:__nsim_dev_port_del