====================================== | xx__-> [ 8.673429][ T166] ------------[ cut here ]------------ | [ 8.673679][ T166] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: tc-mq-visibilit/166 | [ 8.674060][ T166] Modules linked in: netdevsim | [ 8.674679][ T166] Tainted: [W]=WARN [ 8.674804][ T166] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.675386][ T166] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3)) [ 8.675602][ T166] 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 [ 8.676193][ T166] RSP: 0018:ffa00000008174f8 EFLAGS: 00010286 [ 8.676401][ T166] RAX: 00000000ffffffa6 RBX: ff1100000b00edc0 RCX: 1ff4000000102e65 [ 8.676646][ T166] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b00ee70 [ 8.676885][ T166] RBP: ff11000009722000 R08: 1fe2200001601dcf R09: ff1100000c0ed248 [ 8.677135][ T166] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff [ 8.677377][ T166] R13: 0000000000000000 R14: 0000000000000000 R15: ff11000009722000 [ 8.677619][ T166] FS: 00007fe3c87c8b80(0000) GS:ff110000a7205000(0000) knlGS:0000000000000000 [ 8.677906][ T166] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 8.678123][ T166] CR2: 000055c08275e038 CR3: 000000000e071003 CR4: 0000000000771ef0 [ 8.678368][ T166] PKRU: 55555554 [ 8.678492][ T166] Call Trace: [ 8.678614][ T166] [ 8.678743][ T166] rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551) [ 8.678910][ T166] rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560) [ 8.679044][ T166] register_netdevice (net/core/dev.c:11488) [ 8.679210][ T166] ? unregister_netdevice_queue (./include/linux/list.h:162) [ 8.679416][ T166] ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452) [ 8.679581][ T166] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim [ 8.679788][ T166] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim [ 8.679962][ T166] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim [ 8.680169][ T166] ? add_timer_on (kernel/time/timer.c:925 (discriminator 5)) [ 8.680335][ T166] ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim [ 8.680539][ T166] ? 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)) [ 8.680699][ T166] ? static_obj (kernel/locking/lockdep.c:858) [ 8.680823][ T166] ? mark_held_locks (kernel/locking/lockdep.c:4325) [ 8.680995][ T166] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim [ 8.681206][ T166] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim [ 8.681379][ T166] ? driver_sysfs_add (drivers/base/dd.c:495) [ 8.681541][ T166] call_driver_probe (drivers/base/dd.c:629) [ 8.681704][ T166] really_probe (drivers/base/dd.c:709) [ 8.681864][ T166] ? driver_probe_device (drivers/base/dd.c:135) [ 8.682031][ T166] __driver_probe_device (drivers/base/dd.c:871) [ 8.682274][ T166] driver_probe_device (drivers/base/dd.c:901) [ 8.682453][ T166] __device_attach_driver (drivers/base/dd.c:1029) [ 8.682614][ T166] bus_for_each_drv (drivers/base/bus.c:500) [ 8.682773][ T166] ? bus_find_device_reverse (drivers/base/bus.c:442) [ 8.682940][ T166] __device_attach (drivers/base/dd.c:1101) [ 8.683118][ T166] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 8.683277][ T166] ? __driver_attach_async_helper (drivers/base/dd.c:1172 (discriminator 1)) [ 8.683493][ T166] ? 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) [ 8.683653][ T166] ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:169 (discriminator 1) kernel/locking/spinlock.c:190 (discriminator 1)) [ 8.683815][ T166] device_initial_probe (drivers/base/dd.c:1156) [ 8.683981][ T166] bus_probe_device (drivers/base/bus.c:613) [ 8.684151][ T166] device_add (drivers/base/core.c:3706) [ 8.684314][ T166] ? __fw_devlink_link_to_consumers.isra.0 (./include/linux/property.h:226 (discriminator 3)) [ 8.684513][ T166] ? __init_waitqueue_head (kernel/sched/wait.c:12) [ 8.684675][ T166] ? pm_runtime_init (drivers/base/power/runtime.c:1859) [ 8.684838][ T166] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim [ 8.685099][ T166] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 8.685262][ T166] ? new_port_store (drivers/net/netdevsim/bus.c:99) netdevsim [ 8.685464][ T166] ? 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)) [ 8.685628][ T166] ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24) [ 8.685789][ T166] ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1)) [ 8.685957][ T166] kernfs_fop_write_iter (fs/kernfs/file.c:352) [ 8.686124][ T166] ? kernfs_ops (fs/kernfs/file.c:128) [ 8.686246][ T166] new_sync_write (fs/read_write.c:595) [ 8.686409][ T166] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 8.686570][ T166] ? new_sync_read (./include/linux/ioprio.h:41) [ 8.686736][ T166] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 8.686919][ T166] ? ksys_write (fs/read_write.c:740) [ 8.687094][ T166] vfs_write (fs/read_write.c:688) [ 8.687219][ T166] ksys_write (fs/read_write.c:740) [ 8.687342][ T166] ? __ia32_sys_read (fs/read_write.c:724) [ 8.687502][ T166] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 8.687661][ T166] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 8.687846][ T166] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 8.688019][ T166] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1)) [ 8.688182][ T166] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3)) [ 8.688344][ T166] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.688544][ T166] RIP: 0033:0x7fe3c883a08e [ 8.688711][ T166] 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 [ 8.689286][ T166] RSP: 002b:00007ffd85b000a0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 8.689530][ T166] RAX: ffffffffffffffda RBX: 00007fe3c89bc580 RCX: 00007fe3c883a08e [ 8.689769][ T166] RDX: 0000000000000008 RSI: 000055c08275d030 RDI: 0000000000000001 [ 8.690013][ T166] RBP: 00007ffd85b000b0 R08: 0000000000000000 R09: 0000000000000000 [ 8.690257][ T166] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000008 [ 8.690496][ T166] R13: 0000000000000008 R14: 000055c08275d030 R15: 0000000000000000 | [ 9.460882][ T230] ------------[ cut here ]------------ | [ 9.461196][ T230] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: ip/230 | [ 9.461447][ T230] Modules linked in: netdevsim | [ 9.461901][ T230] Tainted: [W]=WARN [ 9.462012][ T230] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.462188][ T230] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3)) [ 9.462367][ T230] 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 [ 9.462846][ T230] RSP: 0018:ffa00000008a7020 EFLAGS: 00010286 [ 9.463122][ T230] RAX: 00000000ffffffa6 RBX: ff1100000c7e7cc0 RCX: 1ff4000000114dca [ 9.463326][ T230] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c7e7d70 [ 9.463526][ T230] RBP: ff11000009722000 R08: 1fe22000018fcfaf R09: ff1100000cc60b80 [ 9.463821][ T230] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001 [ 9.464087][ T230] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 [ 9.464295][ T230] FS: 00007f8a0512b840(0000) GS:ff110000a7185000(0000) knlGS:0000000000000000 [ 9.464534][ T230] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 9.464706][ T230] CR2: 000000003406d988 CR3: 000000000c63e001 CR4: 0000000000771ef0 [ 9.464911][ T230] PKRU: 55555554 [ 9.465074][ T230] Call Trace: [ 9.465177][ T230] [ 9.465248][ T230] rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551) [ 9.465386][ T230] rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560) [ 9.465490][ T230] ? mark_held_locks (kernel/locking/lockdep.c:4325) [ 9.465628][ T230] __dev_notify_flags (net/core/dev.c:9787) [ 9.465766][ T230] ? netif_change_name (net/core/dev.c:1495) [ 9.465904][ T230] ? __dev_change_flags (net/core/dev.c:9752) [ 9.466103][ T230] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 9.466241][ T230] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 9.466378][ T230] ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2)) [ 9.466517][ T230] netif_change_flags (net/core/dev.c:9820) [ 9.466652][ T230] do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1)) [ 9.466793][ T230] ? rtnl_link_get_size (net/core/rtnetlink.c:716) [ 9.466929][ T230] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3)) [ 9.467158][ T230] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 9.467294][ T230] ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2)) [ 9.467430][ T230] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 9.467567][ T230] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 9.467706][ T230] ? __kernel_text_address (kernel/extable.c:79) [ 9.467844][ T230] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 9.468010][ T230] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 9.468149][ T230] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149) [ 9.468286][ T230] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 9.468421][ T230] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22)) [ 9.468559][ T230] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 9.468694][ T230] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 9.468830][ T230] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22)) [ 9.468973][ T230] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820) [ 9.469118][ T230] ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1)) [ 9.469254][ T230] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149) [ 9.469391][ T230] ? ww_mutex_lock (kernel/locking/mutex.c:933) [ 9.469533][ T230] ? __rtnl_newlink (net/core/rtnetlink.c:4000) [ 9.469673][ T230] rtnl_newlink (net/core/rtnetlink.c:4150) [ 9.469809][ T230] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 9.469950][ T230] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 9.470109][ T230] ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1)) [ 9.470244][ T230] ? mark_usage (kernel/locking/lockdep.c:4674) [ 9.470380][ T230] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 9.470518][ T230] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 9.470652][ T230] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 9.470787][ T230] ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1)) [ 9.470933][ T230] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 9.471076][ T230] ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1)) [ 9.471209][ T230] rtnetlink_rcv_msg (net/core/rtnetlink.c:7061) [ 9.471346][ T230] ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2)) [ 9.471481][ T230] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.471618][ T230] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 9.471755][ T230] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 9.471890][ T230] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 9.472034][ T230] netlink_rcv_skb (net/netlink/af_netlink.c:2551) [ 9.472170][ T230] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.472306][ T230] ? netlink_ack (./include/linux/skbuff.h:2718) [ 9.472445][ T230] ? 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)) [ 9.472579][ T230] ? 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)) [ 9.472717][ T230] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 9.472853][ T230] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 9.472991][ T230] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 9.473133][ T230] netlink_sendmsg (net/netlink/af_netlink.c:1895) [ 9.473270][ T230] ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7)) [ 9.473407][ T230] ? __might_fault (mm/memory.c:7340 (discriminator 5)) [ 9.473546][ T230] ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4)) [ 9.473684][ T230] ? copy_msghdr_from_user (net/socket.c:2635) [ 9.473817][ T230] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349) [ 9.473988][ T230] ? move_addr_to_kernel (net/socket.c:258) [ 9.474127][ T230] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 9.474260][ T230] ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2)) [ 9.474397][ T230] ___sys_sendmsg (net/socket.c:2752) [ 9.474531][ T230] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131) [ 9.474698][ T230] ? copy_msghdr_from_user (net/socket.c:2603) [ 9.474846][ T230] __sys_sendmsg (net/socket.c:2784) [ 9.474988][ T230] ? __sys_sendmsg_sock (net/socket.c:2765) [ 9.475126][ T230] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6)) [ 9.475297][ T230] ? 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) [ 9.475432][ T230] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 9.475567][ T230] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 9.475702][ T230] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1)) [ 9.475839][ T230] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3)) [ 9.475981][ T230] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.476153][ T230] RIP: 0033:0x7f8a0536508e [ 9.476300][ T230] 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 [ 9.476779][ T230] RSP: 002b:00007ffc5a485600 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 9.477015][ T230] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f8a0536508e [ 9.477221][ T230] RDX: 0000000000000000 RSI: 00007ffc5a4856b0 RDI: 0000000000000005 [ 9.477421][ T230] RBP: 00007ffc5a485610 R08: 0000000000000000 R09: 0000000000000000 [ 9.477623][ T230] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10de31 [ 9.477824][ T230] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffc5a485d70 | [ 10.323762][ T165] ------------[ cut here ]------------ | [ 10.324097][ T165] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: tc-mq-visibilit/165 | [ 10.324531][ T165] Modules linked in: netdevsim | [ 10.325236][ T165] Tainted: [W]=WARN [ 10.325403][ T165] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.325705][ T165] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3)) [ 10.325978][ 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 [ 10.326599][ T165] RSP: 0018:ffa00000007a75a8 EFLAGS: 00010286 [ 10.326849][ T165] RAX: 00000000ffffffa6 RBX: ff1100000ac7b3c0 RCX: 1ff40000000f4e7b [ 10.327171][ T165] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000ac7b470 [ 10.327454][ T165] RBP: ff11000009722000 R08: 1fe220000158f68f R09: ff1100000c0eaf70 [ 10.327737][ T165] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041 [ 10.328166][ T165] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000007a7698 [ 10.328578][ T165] FS: 00007fe3c87c8b80(0000) GS:ff110000a7285000(0000) knlGS:0000000000000000 [ 10.329020][ T165] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 10.329389][ T165] CR2: 000055c08275f898 CR3: 000000000e068002 CR4: 0000000000771ef0 [ 10.329781][ T165] PKRU: 55555554 [ 10.330071][ T165] Call Trace: [ 10.330473][ T165] [ 10.330737][ T165] rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551) [ 10.331095][ T165] rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560) [ 10.331403][ T165] netif_close_many (net/core/dev.c:1804) [ 10.331761][ T165] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 10.332120][ T165] ? __dev_close_many (net/core/dev.c:1781) [ 10.332468][ T165] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 10.332767][ T165] netif_close_many_and_unlock (net/core/dev.c:12330) [ 10.333074][ T165] ? unregister_netdevice_many_notify (./include/linux/netdevice.h:2830 net/core/dev.c:12396) [ 10.333331][ T165] unregister_netdevice_many_notify (net/core/dev.c:12400) [ 10.333575][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 10.333809][ T165] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22)) [ 10.334043][ T165] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820) [ 10.334253][ T165] ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1)) [ 10.334460][ T165] ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3)) [ 10.334717][ T165] ? __rtnl_unlock (net/core/rtnetlink.c:143) [ 10.334928][ T165] ? netdev_run_todo (net/core/dev.c:11703) [ 10.335160][ T165] ? ww_mutex_lock (kernel/locking/mutex.c:933) [ 10.335371][ 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) [ 10.335584][ T165] unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299) [ 10.335794][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 10.336021][ T165] ? unregister_netdevice_many (net/core/dev.c:12497) [ 10.336252][ T165] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim [ 10.336467][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 10.336675][ T165] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim [ 10.336927][ T165] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim [ 10.337200][ T165] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim [ 10.337444][ T165] device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375) [ 10.337738][ T165] bus_remove_device (drivers/base/bus.c:657) [ 10.337969][ T165] ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1)) [ 10.338186][ T165] ? device_remove_file (drivers/base/core.c:3073) [ 10.338394][ T165] device_del (drivers/base/core.c:3895) [ 10.338564][ T165] ? __device_link_del (./include/linux/kobject.h:89) [ 10.338805][ T165] ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1)) [ 10.339037][ T165] device_unregister (drivers/base/core.c:3936) [ 10.339247][ T165] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim [ 10.339496][ 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)) [ 10.339702][ T165] ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim [ 10.339962][ T165] ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24) [ 10.340178][ T165] ? sysfs_kf_write (fs/sysfs/file.c:137) [ 10.340384][ T165] kernfs_fop_write_iter (fs/kernfs/file.c:352) [ 10.340591][ T165] ? kernfs_ops (fs/kernfs/file.c:128) [ 10.340759][ T165] new_sync_write (fs/read_write.c:595) [ 10.340983][ T165] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 10.341196][ T165] ? new_sync_read (./include/linux/ioprio.h:41) [ 10.341412][ T165] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 10.341639][ T165] ? ksys_write (fs/read_write.c:740) [ 10.341852][ T165] vfs_write (fs/read_write.c:688) [ 10.342044][ T165] ksys_write (fs/read_write.c:740) [ 10.342218][ T165] ? __ia32_sys_read (fs/read_write.c:724) [ 10.342426][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 10.342632][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 10.342845][ T165] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 10.343101][ T165] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1)) [ 10.343309][ T165] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3)) [ 10.343516][ T165] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.343764][ T165] RIP: 0033:0x7fe3c883a08e [ 10.343994][ 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 [ 10.344612][ T165] RSP: 002b:00007ffd85b01cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 10.344916][ T165] RAX: ffffffffffffffda RBX: 00007fe3c89bc580 RCX: 00007fe3c883a08e [ 10.345225][ T165] RDX: 0000000000000004 RSI: 000055c08275e890 RDI: 0000000000000001 [ 10.345510][ T165] RBP: 00007ffd85b01cc0 R08: 0000000000000000 R09: 0000000000000000 [ 10.345801][ T165] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004 [ 10.346154][ T165] R13: 0000000000000004 R14: 000055c08275e890 R15: 0000000000000000 | [ 10.361543][ T165] ------------[ cut here ]------------ | [ 10.361779][ T165] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#1: tc-mq-visibilit/165 | [ 10.362130][ T165] Modules linked in: netdevsim | [ 10.362687][ T165] Tainted: [W]=WARN [ 10.362805][ T165] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.363033][ T165] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3)) [ 10.363228][ 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 [ 10.363765][ T165] RSP: 0018:ffa00000007a7728 EFLAGS: 00010286 [ 10.363965][ T165] RAX: 00000000ffffffa6 RBX: ff11000004d34f40 RCX: 1ff40000000f4eab [ 10.364205][ T165] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff11000004d34ff0 [ 10.364433][ T165] RBP: ff11000009722000 R08: 1fe22000009a69ff R09: ff1100000c0eaf48 [ 10.364660][ T165] R10: 0000000000000001 R11: 0000000000000001 R12: 00000000ffffffff [ 10.364884][ T165] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 10.365122][ T165] FS: 00007fe3c87c8b80(0000) GS:ff110000a7205000(0000) knlGS:0000000000000000 [ 10.365387][ T165] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 10.365581][ T165] CR2: 00007f795065b8f4 CR3: 000000000e068004 CR4: 0000000000771ef0 [ 10.365819][ T165] PKRU: 55555554 [ 10.365935][ T165] Call Trace: [ 10.366062][ T165] [ 10.366140][ T165] unregister_netdevice_many_notify (net/core/dev.c:12439) [ 10.366329][ T165] ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3)) [ 10.366514][ T165] ? __rtnl_unlock (net/core/rtnetlink.c:143) [ 10.366663][ T165] ? netdev_run_todo (net/core/dev.c:11703) [ 10.366812][ T165] ? ww_mutex_lock (kernel/locking/mutex.c:933) [ 10.366969][ 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) [ 10.367154][ T165] unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299) [ 10.367329][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 10.367487][ T165] ? unregister_netdevice_many (net/core/dev.c:12497) [ 10.367639][ T165] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim [ 10.367793][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 10.367950][ T165] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim [ 10.368143][ T165] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim [ 10.368334][ T165] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim [ 10.368485][ T165] device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375) [ 10.368673][ T165] bus_remove_device (drivers/base/bus.c:657) [ 10.368824][ T165] ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1)) [ 10.369175][ T165] ? device_remove_file (drivers/base/core.c:3073) [ 10.369330][ T165] device_del (drivers/base/core.c:3895) [ 10.369443][ T165] ? __device_link_del (./include/linux/kobject.h:89) [ 10.369615][ T165] ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1)) [ 10.369767][ T165] device_unregister (drivers/base/core.c:3936) [ 10.369916][ T165] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim [ 10.370173][ 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)) [ 10.370337][ T165] ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim [ 10.370557][ T165] ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24) [ 10.370708][ T165] ? sysfs_kf_write (fs/sysfs/file.c:137) [ 10.370858][ T165] kernfs_fop_write_iter (fs/kernfs/file.c:352) [ 10.371016][ T165] ? kernfs_ops (fs/kernfs/file.c:128) [ 10.371133][ T165] new_sync_write (fs/read_write.c:595) [ 10.371285][ T165] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 10.371455][ T165] ? new_sync_read (./include/linux/ioprio.h:41) [ 10.371628][ T165] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 10.371807][ T165] ? ksys_write (fs/read_write.c:740) [ 10.371968][ T165] vfs_write (fs/read_write.c:688) [ 10.372093][ T165] ksys_write (fs/read_write.c:740) [ 10.372207][ T165] ? __ia32_sys_read (fs/read_write.c:724) [ 10.372357][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 10.372524][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 10.372704][ T165] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 10.372852][ T165] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1)) [ 10.373007][ T165] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3)) [ 10.373162][ T165] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.373352][ T165] RIP: 0033:0x7fe3c883a08e [ 10.373510][ 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 [ 10.374052][ T165] RSP: 002b:00007ffd85b01cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 10.374277][ T165] RAX: ffffffffffffffda RBX: 00007fe3c89bc580 RCX: 00007fe3c883a08e [ 10.374499][ T165] RDX: 0000000000000004 RSI: 000055c08275e890 RDI: 0000000000000001 [ 10.374730][ T165] RBP: 00007ffd85b01cc0 R08: 0000000000000000 R09: 0000000000000000 [ 10.374959][ T165] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004 [ 10.375207][ T165] R13: 0000000000000004 R14: 000055c08275e890 R15: 0000000000000000 | [ 10.486278][ T312] ------------[ cut here ]------------ | [ 10.486529][ T312] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#0: tc-mq-visibilit/312 | [ 10.486875][ T312] Modules linked in: netdevsim | [ 10.487554][ T312] Tainted: [W]=WARN [ 10.487683][ T312] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.487895][ T312] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3)) [ 10.488152][ T312] 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 [ 10.488761][ T312] RSP: 0018:ffa00000008e74f8 EFLAGS: 00010286 [ 10.488980][ T312] RAX: 00000000ffffffa6 RBX: ff1100000c7e67c0 RCX: 1ff400000011ce65 [ 10.489239][ T312] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c7e6870 [ 10.489491][ T312] RBP: ff1100000ff2a000 R08: 1fe22000018fcd0f R09: ff1100000c6c8c48 [ 10.489743][ T312] R10: 0000000000000000 R11: 0000000000000001 R12: 00000000ffffffff [ 10.490003][ T312] R13: 0000000000000000 R14: 0000000000000000 R15: ff1100000ff2a000 [ 10.490261][ T312] FS: 00007fe3c87c8b80(0000) GS:ff110000a7185000(0000) knlGS:0000000000000000 [ 10.490555][ T312] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 10.490768][ T312] CR2: 00007fe3c8979493 CR3: 000000000cc3f006 CR4: 0000000000771ef0 [ 10.491034][ T312] PKRU: 55555554 [ 10.491163][ T312] Call Trace: [ 10.491290][ T312] [ 10.491380][ T312] rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551) [ 10.491551][ T312] rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560) [ 10.491681][ T312] register_netdevice (net/core/dev.c:11488) [ 10.491853][ T312] ? unregister_netdevice_queue (./include/linux/list.h:162) [ 10.492072][ T312] ? __debugfs_create_file (fs/debugfs/inode.c:412 fs/debugfs/inode.c:452) [ 10.492247][ T312] nsim_init_netdevsim (drivers/net/netdevsim/netdev.c:1069) netdevsim [ 10.492468][ T312] nsim_create (drivers/net/netdevsim/netdev.c:1151) netdevsim [ 10.492640][ T312] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1509) netdevsim [ 10.492853][ T312] ? add_timer_on (kernel/time/timer.c:925 (discriminator 5)) [ 10.493035][ T312] ? nsim_dev_get_vfs (drivers/net/netdevsim/dev.c:65) netdevsim [ 10.493248][ T312] ? 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)) [ 10.493421][ T312] ? static_obj (kernel/locking/lockdep.c:858) [ 10.493551][ T312] ? mark_held_locks (kernel/locking/lockdep.c:4325) [ 10.493724][ T312] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:713 ./include/linux/workqueue.h:855 drivers/net/netdevsim/hwstats.c:439) netdevsim [ 10.493938][ T312] nsim_drv_probe (drivers/net/netdevsim/dev.c:1570 drivers/net/netdevsim/dev.c:1731) netdevsim [ 10.494161][ T312] ? driver_sysfs_add (drivers/base/dd.c:495) [ 10.494332][ T312] call_driver_probe (drivers/base/dd.c:629) [ 10.494500][ T312] really_probe (drivers/base/dd.c:709) [ 10.494668][ T312] ? driver_probe_device (drivers/base/dd.c:135) [ 10.494836][ T312] __driver_probe_device (drivers/base/dd.c:871) [ 10.495008][ T312] driver_probe_device (drivers/base/dd.c:901) [ 10.495192][ T312] __device_attach_driver (drivers/base/dd.c:1029) [ 10.495360][ T312] bus_for_each_drv (drivers/base/bus.c:500) [ 10.495528][ T312] ? bus_find_device_reverse (drivers/base/bus.c:442) [ 10.495698][ T312] __device_attach (drivers/base/dd.c:1101) [ 10.495868][ T312] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.496046][ T312] ? __driver_attach_async_helper (drivers/base/dd.c:1172 (discriminator 1)) [ 10.496256][ T312] ? 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) [ 10.496425][ T312] ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:169 (discriminator 1) kernel/locking/spinlock.c:190 (discriminator 1)) [ 10.496596][ T312] device_initial_probe (drivers/base/dd.c:1156) [ 10.496764][ T312] bus_probe_device (drivers/base/bus.c:613) [ 10.496934][ T312] device_add (drivers/base/core.c:3706) [ 10.497112][ T312] ? __fw_devlink_link_to_consumers.isra.0 (./include/linux/property.h:226 (discriminator 3)) [ 10.497323][ T312] ? __init_waitqueue_head (kernel/sched/wait.c:12) [ 10.497490][ T312] ? pm_runtime_init (drivers/base/power/runtime.c:1859) [ 10.497661][ T312] new_device_store (drivers/net/netdevsim/bus.c:471 drivers/net/netdevsim/bus.c:191) netdevsim [ 10.497871][ T312] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 10.498047][ T312] ? new_port_store (drivers/net/netdevsim/bus.c:99) netdevsim [ 10.498259][ T312] ? 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)) [ 10.498430][ T312] ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24) [ 10.498601][ T312] ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1)) [ 10.498767][ T312] kernfs_fop_write_iter (fs/kernfs/file.c:352) [ 10.498935][ T312] ? kernfs_ops (fs/kernfs/file.c:128) [ 10.499073][ T312] new_sync_write (fs/read_write.c:595) [ 10.499244][ T312] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 10.499414][ T312] ? new_sync_read (./include/linux/ioprio.h:41) [ 10.499584][ T312] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 10.499754][ T312] ? ksys_write (fs/read_write.c:740) [ 10.499926][ T312] vfs_write (fs/read_write.c:688) [ 10.500067][ T312] ksys_write (fs/read_write.c:740) [ 10.500195][ T312] ? __ia32_sys_read (fs/read_write.c:724) [ 10.500361][ T312] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 10.500529][ T312] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 10.500700][ T312] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 10.500867][ T312] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1)) [ 10.501045][ T312] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3)) [ 10.501217][ T312] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.501425][ T312] RIP: 0033:0x7fe3c883a08e [ 10.501600][ T312] 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 [ 10.502198][ T312] RSP: 002b:00007ffd85b000a0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 10.502451][ T312] RAX: ffffffffffffffda RBX: 00007fe3c89bc580 RCX: 00007fe3c883a08e [ 10.502700][ T312] RDX: 0000000000000008 RSI: 000055c08275e890 RDI: 0000000000000001 [ 10.502954][ T312] RBP: 00007ffd85b000b0 R08: 0000000000000000 R09: 0000000000000000 [ 10.503207][ T312] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000008 [ 10.503460][ T312] R13: 0000000000000008 R14: 000055c08275e890 R15: 0000000000000000 | [ 11.164244][ T374] ------------[ cut here ]------------ | [ 11.164425][ T374] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#3: ip/374 | [ 11.164663][ T374] Modules linked in: netdevsim | [ 11.165087][ T374] Tainted: [W]=WARN [ 11.165188][ T374] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.165353][ T374] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3)) [ 11.165525][ T374] 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 [ 11.165996][ T374] RSP: 0018:ffa0000000b97020 EFLAGS: 00010286 [ 11.166180][ T374] RAX: 00000000ffffffa6 RBX: ff1100000b00e340 RCX: 1ff4000000172dca [ 11.166376][ T374] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000b00e3f0 [ 11.166570][ T374] RBP: ff1100000ff2a000 R08: 1fe2200001601c7f R09: ff1100000c695180 [ 11.166768][ T374] R10: 0000000000000003 R11: 0000000000000001 R12: 0000000000000001 [ 11.166968][ T374] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 [ 11.167167][ T374] FS: 00007f39d74cc840(0000) GS:ff110000a7305000(0000) knlGS:0000000000000000 [ 11.167400][ T374] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 11.167566][ T374] CR2: 000000000425a988 CR3: 000000001060b003 CR4: 0000000000771ef0 [ 11.167763][ T374] PKRU: 55555554 [ 11.167861][ T374] Call Trace: [ 11.167966][ T374] [ 11.168038][ T374] ? __local_bh_enable_ip (kernel/softirq.c:455) [ 11.168172][ T374] rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551) [ 11.168303][ T374] rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560) [ 11.168403][ T374] ? mark_held_locks (kernel/locking/lockdep.c:4325) [ 11.168535][ T374] __dev_notify_flags (net/core/dev.c:9787) [ 11.168671][ T374] ? netif_change_name (net/core/dev.c:1495) [ 11.168804][ T374] ? __dev_change_flags (net/core/dev.c:9752) [ 11.168935][ T374] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 11.169074][ T374] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 11.169209][ T374] ? is_bpf_text_address (./include/linux/rcupdate.h:310 (discriminator 2) ./include/linux/rcupdate.h:869 (discriminator 2) kernel/bpf/core.c:749 (discriminator 2)) [ 11.169346][ T374] netif_change_flags (net/core/dev.c:9820) [ 11.169479][ T374] do_setlink.isra.0 (net/core/rtnetlink.c:3206 (discriminator 1)) [ 11.169615][ T374] ? rtnl_link_get_size (net/core/rtnetlink.c:716) [ 11.169749][ T374] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4040 (discriminator 3) kernel/rcu/tree.c:4032 (discriminator 3)) [ 11.169913][ T374] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.170057][ T374] ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2)) [ 11.170188][ T374] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 11.170322][ T374] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 11.170454][ T374] ? __kernel_text_address (kernel/extable.c:79) [ 11.170587][ T374] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 11.170721][ T374] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 11.170852][ T374] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149) [ 11.170989][ T374] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 11.171127][ T374] ? lock_acquire (./include/trace/events/lock.h:24 (discriminator 22) kernel/locking/lockdep.c:5831 (discriminator 22)) [ 11.171258][ T374] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 11.171389][ T374] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 11.171520][ T374] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22)) [ 11.171651][ T374] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820) [ 11.171781][ T374] ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1)) [ 11.171910][ T374] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:341 net/core/rtnetlink.c:4149) [ 11.172051][ T374] ? ww_mutex_lock (kernel/locking/mutex.c:933) [ 11.172185][ T374] ? __rtnl_newlink (net/core/rtnetlink.c:4000) [ 11.172321][ T374] rtnl_newlink (net/core/rtnetlink.c:4150) [ 11.172453][ T374] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 11.172584][ T374] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 11.172716][ T374] ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1)) [ 11.172847][ T374] ? mark_usage (kernel/locking/lockdep.c:4674) [ 11.172982][ T374] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 11.173123][ T374] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 11.173252][ T374] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 11.173383][ T374] ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1)) [ 11.173513][ T374] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5535) [ 11.173645][ T374] ? __rtnl_newlink (net/core/rtnetlink.c:4027 (discriminator 1)) [ 11.173777][ T374] rtnetlink_rcv_msg (net/core/rtnetlink.c:7061) [ 11.173910][ T374] ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2)) [ 11.174052][ T374] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.174186][ T374] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 11.174320][ T374] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 11.174453][ T374] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 11.174586][ T374] netlink_rcv_skb (net/netlink/af_netlink.c:2551) [ 11.174718][ T374] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.174850][ T374] ? netlink_ack (./include/linux/skbuff.h:2718) [ 11.174990][ T374] ? 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)) [ 11.175126][ T374] ? 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)) [ 11.175260][ T374] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 11.175391][ T374] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 11.175521][ T374] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 11.175654][ T374] netlink_sendmsg (net/netlink/af_netlink.c:1895) [ 11.175787][ T374] ? netlink_unicast (./include/net/net_namespace.h:419 (discriminator 7)) [ 11.175920][ T374] ? __might_fault (mm/memory.c:7340 (discriminator 5)) [ 11.176061][ T374] ____sys_sendmsg (net/socket.c:787 (discriminator 4) net/socket.c:802 (discriminator 4) net/socket.c:2698 (discriminator 4)) [ 11.176193][ T374] ? copy_msghdr_from_user (net/socket.c:2635) [ 11.176323][ T374] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5349) [ 11.176486][ T374] ? move_addr_to_kernel (net/socket.c:258) [ 11.176616][ T374] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 11.176747][ T374] ? validate_chain (kernel/locking/lockdep.c:3801 (discriminator 2) kernel/locking/lockdep.c:3821 (discriminator 2) kernel/locking/lockdep.c:3876 (discriminator 2)) [ 11.176879][ T374] ___sys_sendmsg (net/socket.c:2752) [ 11.177016][ T374] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3131) [ 11.177187][ T374] ? copy_msghdr_from_user (net/socket.c:2603) [ 11.177331][ T374] __sys_sendmsg (net/socket.c:2784) [ 11.177462][ T374] ? __sys_sendmsg_sock (net/socket.c:2765) [ 11.177592][ T374] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3156 (discriminator 6)) [ 11.177760][ T374] ? 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) [ 11.177892][ T374] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 11.178031][ T374] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 11.178163][ T374] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1)) [ 11.178295][ T374] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3)) [ 11.178427][ T374] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.178593][ T374] RIP: 0033:0x7f39d770608e [ 11.178733][ T374] 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 [ 11.179204][ T374] RSP: 002b:00007ffce9888560 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 11.179405][ T374] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f39d770608e [ 11.179600][ T374] RDX: 0000000000000000 RSI: 00007ffce9888610 RDI: 0000000000000005 [ 11.179797][ T374] RBP: 00007ffce9888570 R08: 0000000000000000 R09: 0000000000000000 [ 11.179997][ T374] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a10de33 [ 11.180196][ T374] R13: 000000000049f620 R14: 0000000000000000 R15: 00007ffce9888cd0 | [ 12.076251][ T165] ------------[ cut here ]------------ | [ 12.076549][ T165] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: tc-mq-visibilit/165 | [ 12.077104][ T165] Modules linked in: netdevsim | [ 12.077779][ T165] Tainted: [W]=WARN [ 12.077968][ T165] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.078242][ T165] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3)) [ 12.078504][ 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 [ 12.079278][ T165] RSP: 0018:ffa00000007a75a8 EFLAGS: 00010286 [ 12.079532][ T165] RAX: 00000000ffffffa6 RBX: ff1100000c7e7e40 RCX: 1ff40000000f4e7b [ 12.079826][ T165] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000c7e7ef0 [ 12.080133][ T165] RBP: ff1100000ff2a000 R08: 1fe22000018fcfdf R09: ff1100000c0eaf70 [ 12.080423][ T165] R10: 0000000000000002 R11: 0000000000000001 R12: 0000000000000041 [ 12.080714][ T165] R13: 0000000000000000 R14: 0000000000000000 R15: ffa00000007a7698 [ 12.081020][ T165] FS: 00007fe3c87c8b80(0000) GS:ff110000a7285000(0000) knlGS:0000000000000000 [ 12.081362][ T165] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 12.081616][ T165] CR2: 00007fdfe88fe8f4 CR3: 000000000e068002 CR4: 0000000000771ef0 [ 12.081907][ T165] PKRU: 55555554 [ 12.082094][ T165] Call Trace: [ 12.082265][ T165] [ 12.082398][ T165] rtmsg_ifinfo_event.part.0 (net/core/rtnetlink.c:4551) [ 12.082613][ T165] rtmsg_ifinfo (net/core/rtnetlink.c:4551 net/core/rtnetlink.c:4560) [ 12.082786][ T165] netif_close_many (net/core/dev.c:1804) [ 12.083010][ T165] ? find_held_lock (kernel/locking/lockdep.c:5350) [ 12.083244][ T165] ? __dev_close_many (net/core/dev.c:1781) [ 12.083457][ T165] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 12.083671][ T165] netif_close_many_and_unlock (net/core/dev.c:12330) [ 12.083887][ T165] ? unregister_netdevice_many_notify (./include/linux/netdevice.h:2830 net/core/dev.c:12396) [ 12.084160][ T165] unregister_netdevice_many_notify (net/core/dev.c:12400) [ 12.084409][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 12.084623][ T165] ? trace_contention_end (./include/trace/events/lock.h:122 (discriminator 22)) [ 12.084836][ T165] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:820) [ 12.085066][ T165] ? __mutex_lock (kernel/locking/mutex.c:798 (discriminator 1) kernel/locking/mutex.c:820 (discriminator 1)) [ 12.085278][ T165] ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3)) [ 12.085529][ T165] ? __rtnl_unlock (net/core/rtnetlink.c:143) [ 12.085743][ T165] ? netdev_run_todo (net/core/dev.c:11703) [ 12.085969][ T165] ? ww_mutex_lock (kernel/locking/mutex.c:933) [ 12.086186][ 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) [ 12.086401][ T165] unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299) [ 12.086615][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 12.086827][ T165] ? unregister_netdevice_many (net/core/dev.c:12497) [ 12.087065][ T165] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim [ 12.087282][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 12.087495][ T165] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim [ 12.087750][ T165] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim [ 12.088031][ T165] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim [ 12.088261][ T165] device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375) [ 12.088526][ T165] bus_remove_device (drivers/base/bus.c:657) [ 12.088742][ T165] ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1)) [ 12.088966][ T165] ? device_remove_file (drivers/base/core.c:3073) [ 12.089193][ T165] device_del (drivers/base/core.c:3895) [ 12.089369][ T165] ? __device_link_del (./include/linux/kobject.h:89) [ 12.089584][ T165] ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1)) [ 12.089796][ T165] device_unregister (drivers/base/core.c:3936) [ 12.090020][ T165] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim [ 12.090295][ 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)) [ 12.090508][ T165] ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim [ 12.090761][ T165] ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24) [ 12.090986][ T165] ? sysfs_kf_write (fs/sysfs/file.c:137) [ 12.091207][ T165] kernfs_fop_write_iter (fs/kernfs/file.c:352) [ 12.091418][ T165] ? kernfs_ops (fs/kernfs/file.c:128) [ 12.091589][ T165] new_sync_write (fs/read_write.c:595) [ 12.091806][ T165] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 12.092040][ T165] ? new_sync_read (./include/linux/ioprio.h:41) [ 12.092252][ T165] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 12.092466][ T165] ? ksys_write (fs/read_write.c:740) [ 12.092682][ T165] vfs_write (fs/read_write.c:688) [ 12.092856][ T165] ksys_write (fs/read_write.c:740) [ 12.093047][ T165] ? __ia32_sys_read (fs/read_write.c:724) [ 12.093259][ 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) [ 12.093481][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 12.093695][ T165] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 12.093907][ T165] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1)) [ 12.094135][ T165] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3)) [ 12.094351][ T165] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.094602][ T165] RIP: 0033:0x7fe3c883a08e [ 12.094820][ 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 [ 12.095466][ T165] RSP: 002b:00007ffd85b01cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 12.095762][ T165] RAX: ffffffffffffffda RBX: 00007fe3c89bc580 RCX: 00007fe3c883a08e [ 12.096075][ T165] RDX: 0000000000000004 RSI: 000055c08275e890 RDI: 0000000000000001 [ 12.096366][ T165] RBP: 00007ffd85b01cc0 R08: 0000000000000000 R09: 0000000000000000 [ 12.096658][ T165] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004 [ 12.096961][ T165] R13: 0000000000000004 R14: 000055c08275e890 R15: 0000000000000000 | [ 12.107446][ T165] ------------[ cut here ]------------ | [ 12.107708][ T165] WARNING: net/core/rtnetlink.c:4523 at rtmsg_ifinfo_build_skb+0x1a6/0x250, CPU#2: tc-mq-visibilit/165 | [ 12.108136][ T165] Modules linked in: netdevsim | [ 12.108840][ T165] Tainted: [W]=WARN [ 12.109131][ T165] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.109478][ T165] RIP: 0010:rtmsg_ifinfo_build_skb (net/core/rtnetlink.c:4523 (discriminator 3)) [ 12.109795][ 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 [ 12.110460][ T165] RSP: 0018:ffa00000007a7728 EFLAGS: 00010286 [ 12.110705][ T165] RAX: 00000000ffffffa6 RBX: ff1100000fe8e640 RCX: 1ff40000000f4eab [ 12.110996][ T165] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff1100000fe8e6f0 [ 12.111290][ T165] RBP: ff1100000ff2a000 R08: 1fe2200001fd1cdf R09: ff1100000c0eaf48 [ 12.111571][ T165] R10: 0000000000000002 R11: 0000000000000001 R12: 00000000ffffffff [ 12.111848][ T165] R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 [ 12.112145][ T165] FS: 00007fe3c87c8b80(0000) GS:ff110000a7285000(0000) knlGS:0000000000000000 [ 12.112463][ T165] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 12.112707][ T165] CR2: 00007fdfe88fe8f4 CR3: 000000000e068002 CR4: 0000000000771ef0 [ 12.112997][ T165] PKRU: 55555554 [ 12.113164][ T165] Call Trace: [ 12.113327][ T165] [ 12.113456][ T165] unregister_netdevice_many_notify (net/core/dev.c:12439) [ 12.113713][ T165] ? unregister_netdevice_queued (./include/linux/list.h:404 (discriminator 3)) [ 12.113969][ T165] ? __rtnl_unlock (net/core/rtnetlink.c:143) [ 12.114182][ T165] ? netdev_run_todo (net/core/dev.c:11703) [ 12.114388][ T165] ? ww_mutex_lock (kernel/locking/mutex.c:933) [ 12.114590][ 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) [ 12.114796][ T165] unregister_netdevice_queue (net/core/dev.c:12497 net/core/dev.c:12309 net/core/dev.c:12299) [ 12.115013][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 12.115225][ T165] ? unregister_netdevice_many (net/core/dev.c:12497) [ 12.115430][ T165] nsim_destroy (./include/linux/netdevice.h:3455 drivers/net/netdevsim/netdev.c:1193) netdevsim [ 12.115635][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 12.115838][ T165] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:1547) netdevsim [ 12.116097][ T165] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1561 drivers/net/netdevsim/dev.c:1785) netdevsim [ 12.116342][ T165] nsim_drv_remove (drivers/net/netdevsim/dev.c:1800) netdevsim [ 12.116552][ T165] device_release_driver_internal (drivers/base/dd.c:1352 drivers/base/dd.c:1375) [ 12.116807][ T165] bus_remove_device (drivers/base/bus.c:657) [ 12.117025][ T165] ? bus_probe_device (drivers/base/bus.c:616 (discriminator 1)) [ 12.117235][ T165] ? device_remove_file (drivers/base/core.c:3073) [ 12.117441][ T165] device_del (drivers/base/core.c:3895) [ 12.117608][ T165] ? __device_link_del (./include/linux/kobject.h:89) [ 12.117815][ T165] ? sysfs_file_ops (fs/sysfs/file.c:38 (discriminator 1)) [ 12.118031][ T165] device_unregister (drivers/base/core.c:3936) [ 12.118245][ T165] del_device_store (drivers/net/netdevsim/bus.c:491 drivers/net/netdevsim/bus.c:244) netdevsim [ 12.118488][ 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)) [ 12.118694][ T165] ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:57) netdevsim [ 12.119004][ T165] ? sysfs_file_kobj (./include/linux/rcupdate.h:871 ./include/linux/rcupdate.h:1181 fs/sysfs/file.c:24) [ 12.119216][ T165] ? sysfs_kf_write (fs/sysfs/file.c:137) [ 12.119419][ T165] kernfs_fop_write_iter (fs/kernfs/file.c:352) [ 12.119622][ T165] ? kernfs_ops (fs/kernfs/file.c:128) [ 12.119789][ T165] new_sync_write (fs/read_write.c:595) [ 12.120006][ T165] ? __lock_acquire (kernel/locking/lockdep.c:5237) [ 12.120216][ T165] ? new_sync_read (./include/linux/ioprio.h:41) [ 12.120421][ T165] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5868 (discriminator 1)) [ 12.120624][ T165] ? ksys_write (fs/read_write.c:740) [ 12.120829][ T165] vfs_write (fs/read_write.c:688) [ 12.121011][ T165] ksys_write (fs/read_write.c:740) [ 12.121184][ T165] ? __ia32_sys_read (fs/read_write.c:724) [ 12.121389][ 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) [ 12.121592][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:752 (discriminator 3)) [ 12.121797][ T165] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) [ 12.122014][ T165] ? trace_hardirqs_off (kernel/trace/trace_preemptirq.c:104 (discriminator 1)) [ 12.122225][ T165] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3)) [ 12.122429][ T165] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.122669][ T165] RIP: 0033:0x7fe3c883a08e [ 12.122877][ 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 [ 12.123490][ T165] RSP: 002b:00007ffd85b01cb0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 12.123772][ T165] RAX: ffffffffffffffda RBX: 00007fe3c89bc580 RCX: 00007fe3c883a08e [ 12.124079][ T165] RDX: 0000000000000004 RSI: 000055c08275e890 RDI: 0000000000000001 [ 12.124361][ T165] RBP: 00007ffd85b01cc0 R08: 0000000000000000 R09: 0000000000000000 [ 12.124637][ T165] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004 Finger prints: rtmsg_ifinfo_build_skb:rtmsg_ifinfo:register_netdevice:nsim_init_netdevsim:nsim_create rtmsg_ifinfo_build_skb:rtmsg_ifinfo:__dev_notify_flags:netif_change_flags:rtnl_newlink rtmsg_ifinfo_build_skb:unregister_netdevice_many_notify:unregister_netdevice_queue:nsim_destroy:__nsim_dev_port_del rtmsg_ifinfo_build_skb:rtmsg_ifinfo:netif_close_many:netif_close_many_and_unlock:unregister_netdevice_many_notify