====================================== | [ 394.374155][ T3258] 8021q: adding VLAN 0 to HW filter on device eni1337np2 | [ 395.428499][ T1285] ------------[ cut here ]------------ | [ 395.428772][ T1285] WARNING: drivers/net/netdevsim/netdev.c:1234 at nsim_destroy+0x128/0x7b0 [netdevsim], CPU#3: devlink_trap.sh/1285 | [ 395.429176][ T1285] Modules linked in: netdevsim [last unloaded: netdevsim] [ 395.429844][ T1285] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 395.430042][ T1285] RIP: 0010:nsim_destroy (drivers/net/netdevsim/netdev.c:1234 (discriminator 2)) netdevsim [ 395.430302][ T1285] Code: 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 0f 85 47 06 00 00 48 8b 3b e8 84 17 6c dc 31 c0 48 8d ab 48 07 00 00 eb 07 90 <0f> 0b 90 83 c0 01 0f b7 d0 be 00 10 00 00 48 89 ef e8 e2 22 b0 db All code ======== 0: 00 00 add %al,(%rax) 2: 00 00 add %al,(%rax) 4: 00 fc add %bh,%ah 6: ff lcall (bad) 7: df 48 c1 fisttps -0x3f(%rax) a: e9 03 80 3c 01 jmp 0x13c8012 f: 00 0f add %cl,(%rdi) 11: 85 47 06 test %eax,0x6(%rdi) 14: 00 00 add %al,(%rax) 16: 48 8b 3b mov (%rbx),%rdi 19: e8 84 17 6c dc call 0xffffffffdc6c17a2 1e: 31 c0 xor %eax,%eax 20: 48 8d ab 48 07 00 00 lea 0x748(%rbx),%rbp 27: eb 07 jmp 0x30 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 83 c0 01 add $0x1,%eax 30: 0f b7 d0 movzwl %ax,%edx 33: be 00 10 00 00 mov $0x1000,%esi 38: 48 89 ef mov %rbp,%rdi 3b: e8 e2 22 b0 db call 0xffffffffdbb02322 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 83 c0 01 add $0x1,%eax 6: 0f b7 d0 movzwl %ax,%edx 9: be 00 10 00 00 mov $0x1000,%esi e: 48 89 ef mov %rbp,%rdi 11: e8 e2 22 b0 db call 0xffffffffdbb022f8 [ 395.430856][ T1285] RSP: 0018:ffa0000000da7b70 EFLAGS: 00010293 [ 395.431051][ T1285] RAX: 0000000000000000 RBX: ff11000009cf2d00 RCX: ff11000009cf3448 [ 395.431387][ T1285] RDX: 0000000000000000 RSI: 0000000000000000 RDI: dffffc0000000000 [ 395.431783][ T1285] RBP: ff11000009cf3448 R08: ff11000009cf3448 R09: 0000000000000000 [ 395.432157][ T1285] R10: 1fe220000139e689 R11: 0000000000000001 R12: dffffc0000000000 [ 395.432538][ T1285] R13: ff11000009d0cb58 R14: 0000000000000002 R15: ffffffff9bb4fcc0 [ 395.432909][ T1285] FS: 00007fc79aa79bc0(0000) GS:ff11000096005000(0000) knlGS:0000000000000000 [ 395.433355][ T1285] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 395.433656][ T1285] CR2: 000055e640671448 CR3: 0000000009cc1002 CR4: 0000000000771ef0 [ 395.433894][ T1285] PKRU: 55555554 [ 395.434015][ T1285] Call Trace: [ 395.434136][ T1285] [ 395.434224][ T1285] ? sysfs_file_ops (fs/sysfs/file.c:135) [ 395.434385][ T1285] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:444 drivers/net/netdevsim/dev.c:1529) netdevsim [ 395.434575][ T1285] ? sysfs_file_ops (fs/sysfs/file.c:135) [ 395.434726][ T1285] nsim_drv_port_del (drivers/net/netdevsim/dev.c:1836) netdevsim [ 395.434913][ T1285] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536) [ 395.435065][ T1285] del_port_store (drivers/net/netdevsim/bus.c:118) netdevsim [ 395.435231][ T1285] ? sysfs_file_kobj (./include/linux/rcupdate.h:322 (discriminator 1) ./include/linux/rcupdate.h:881 (discriminator 1) ./include/linux/rcupdate.h:1193 (discriminator 1) fs/sysfs/file.c:24 (discriminator 1)) [ 395.435389][ T1285] ? del_device_store (drivers/net/netdevsim/bus.c:106) netdevsim [ 395.435579][ T1285] ? sysfs_file_kobj (fs/sysfs/file.c:26) [ 395.435728][ T1285] ? sysfs_kf_write (fs/sysfs/file.c:139) [ 395.435880][ T1285] kernfs_fop_write_iter (fs/kernfs/file.c:88 fs/kernfs/file.c:356) [ 395.436032][ T1285] ? kernfs_ops (fs/kernfs/file.c:312) [ 395.436158][ T1285] new_sync_write (fs/read_write.c:596 (discriminator 1)) [ 395.436318][ T1285] ? new_sync_read (fs/read_write.c:586) [ 395.436471][ T1285] ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870) [ 395.436625][ T1285] ? ksys_write (fs/read_write.c:741) [ 395.436781][ T1285] vfs_write (fs/read_write.c:688) [ 395.436897][ T1285] ksys_write (fs/read_write.c:741) [ 395.437016][ T1285] ? __ia32_sys_read (fs/read_write.c:730) [ 395.437181][ T1285] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 395.437341][ T1285] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1)) [ 395.437497][ T1285] do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1)) [ 395.437651][ T1285] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3)) [ 395.437802][ T1285] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 395.437996][ T1285] RIP: 0033:0x7fc79aae9c5e [ 395.438167][ T1285] Code: 4d 89 d8 e8 34 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 13 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 34 bd 00 00 call 0xbd3c 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 13 ff ff ff call 0xffffffffffffff4c 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 13 ff ff ff call 0xffffffffffffff22 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 395.438743][ T1285] RSP: 002b:00007ffc493b1380 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 395.438976][ T1285] RAX: ffffffffffffffda RBX: 00007fc79ac655c0 RCX: 00007fc79aae9c5e [ 395.439217][ T1285] RDX: 0000000000000002 RSI: 000055e64067fc00 RDI: 0000000000000001 [ 395.439456][ T1285] RBP: 00007ffc493b1390 R08: 0000000000000000 R09: 0000000000000000 [ 395.439686][ T1285] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000002 Finger prints: nsim_destroy:__nsim_dev_port_del:nsim_drv_port_del:del_port_store:kernfs_fop_write_iter