====================================== | [ 2261.219824][ T9112] 8021q: adding VLAN 0 to HW filter on device eni586np1 | [ 2261.562273][ T9088] ------------[ cut here ]------------ | [ 2261.562521][ T9088] WARNING: drivers/net/netdevsim/netdev.c:1234 at nsim_destroy+0x128/0x780 [netdevsim], CPU#1: tfo_passive.sh/9088 | [ 2261.563023][ T9088] Modules linked in: netdevsim psample sch_fq ipt_rpfilter vxcan can_dev xfrm_interface macsec cls_flower ip6_gre ip_gre gre nft_chain_nat xt_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 act_mirred cls_u32 ifb ipvtap ipvlan unix_diag act_gact cls_matchall sch_ingress geneve ip6t_rpfilter nft_compat nf_tables vxlan mpls_gso mpls_iptunnel mpls_router [ 2261.564412][ T9088] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 2261.564612][ T9088] RIP: 0010:nsim_destroy (drivers/net/netdevsim/netdev.c:1234 (discriminator 2)) netdevsim [ 2261.564872][ T9088] Code: 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 0f 85 e5 05 00 00 48 8b 3b e8 94 c3 0f e9 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 b2 1e 4e e8 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 e5 test %esp,%ebp 13: 05 00 00 48 8b add $0x8b480000,%eax 18: 3b e8 cmp %eax,%ebp 1a: 94 xchg %eax,%esp 1b: c3 ret 1c: 0f e9 31 psubsw (%rcx),%mm6 1f: c0 48 8d ab rorb $0xab,-0x73(%rax) 23: 48 07 rex.W (bad) 25: 00 00 add %al,(%rax) 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 b2 1e 4e e8 call 0xffffffffe84e1ef2 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 b2 1e 4e e8 call 0xffffffffe84e1ec8 [ 2261.565417][ T9088] RSP: 0018:ffa000000042f9b8 EFLAGS: 00010293 [ 2261.565618][ T9088] RAX: 0000000000000000 RBX: ff110000134bad40 RCX: ff110000134bb488 [ 2261.565866][ T9088] RDX: 0000000000000000 RSI: 0000000000000000 RDI: dffffc0000000000 [ 2261.566099][ T9088] RBP: ff110000134bb488 R08: ff110000134bb488 R09: 0000000000000000 [ 2261.566331][ T9088] R10: 1fe2200002697691 R11: ffa000000042f890 R12: ff1100001c015498 [ 2261.566560][ T9088] R13: dffffc0000000000 R14: ff1100001c015000 R15: ffffffffc0948380 [ 2261.566796][ T9088] FS: 00007f08c45f8bc0(0000) GS:ff110000bf655000(0000) knlGS:0000000000000000 [ 2261.567074][ T9088] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2261.567268][ T9088] CR2: 0000556419bd9f80 CR3: 000000000e496002 CR4: 0000000000771ef0 [ 2261.567501][ T9088] PKRU: 55555554 [ 2261.567622][ T9088] Call Trace: [ 2261.567739][ T9088] [ 2261.567819][ T9088] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1)) [ 2261.567987][ T9088] __nsim_dev_port_del (drivers/net/netdevsim/dev.c:444 drivers/net/netdevsim/dev.c:1529) netdevsim [ 2261.568178][ T9088] ? devl_lock_is_held (net/devlink/core.c:285 (discriminator 1)) [ 2261.568335][ T9088] nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1538 (discriminator 4) drivers/net/netdevsim/dev.c:1764 (discriminator 4)) netdevsim [ 2261.568528][ T9088] nsim_drv_remove (drivers/net/netdevsim/dev.c:1781) netdevsim [ 2261.568692][ T9088] device_release_driver_internal (drivers/base/dd.c:1286 drivers/base/dd.c:1307) [ 2261.568893][ T9088] ? sysfs_file_ops (fs/sysfs/file.c:135) [ 2261.569045][ T9088] bus_remove_device (./include/linux/kobject.h:193 drivers/base/base.h:73 drivers/base/bus.c:623) [ 2261.569197][ T9088] ? sysfs_file_ops (fs/sysfs/file.c:135) [ 2261.569348][ T9088] device_del (drivers/base/core.c:3879) [ 2261.569464][ T9088] ? __device_link_del (drivers/base/core.c:3833) [ 2261.569624][ T9088] ? sysfs_file_ops (fs/sysfs/file.c:135) [ 2261.569773][ T9088] device_unregister (drivers/base/core.c:3796 drivers/base/core.c:3920) [ 2261.569926][ T9088] del_device_store (drivers/net/netdevsim/bus.c:248) netdevsim [ 2261.570115][ T9088] ? 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)) [ 2261.570265][ T9088] ? nsim_bus_dev_numvfs_show (drivers/net/netdevsim/bus.c:215) netdevsim [ 2261.570454][ T9088] ? sysfs_file_kobj (fs/sysfs/file.c:26) [ 2261.570610][ T9088] ? sysfs_kf_write (fs/sysfs/file.c:139) [ 2261.570762][ T9088] kernfs_fop_write_iter (fs/kernfs/file.c:88 fs/kernfs/file.c:356) [ 2261.570977][ T9088] ? kernfs_ops (fs/kernfs/file.c:312) [ 2261.571092][ T9088] new_sync_write (fs/read_write.c:596 (discriminator 1)) [ 2261.571245][ T9088] ? new_sync_read (fs/read_write.c:586) [ 2261.571395][ T9088] ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870) [ 2261.571546][ T9088] ? ksys_write (fs/read_write.c:741) [ 2261.571705][ T9088] vfs_write (fs/read_write.c:688) [ 2261.571823][ T9088] ksys_write (fs/read_write.c:741) [ 2261.571999][ T9088] ? __ia32_sys_read (fs/read_write.c:730) [ 2261.572149][ T9088] ? 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) [ 2261.572300][ T9088] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1)) [ 2261.572452][ T9088] do_syscall_64 (arch/x86/entry/syscall_64.c:63 (discriminator 1) arch/x86/entry/syscall_64.c:94 (discriminator 1)) [ 2261.572609][ T9088] ? exc_page_fault (arch/x86/mm/fault.c:1480 (discriminator 3) arch/x86/mm/fault.c:1527 (discriminator 3)) [ 2261.572763][ T9088] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 2261.573012][ T9088] RIP: 0033:0x7f08c4668c5e [ 2261.573174][ T9088] 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 [ 2261.573713][ T9088] RSP: 002b:00007fff6f767ba0 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 2261.574006][ T9088] RAX: ffffffffffffffda RBX: 00007f08c47e45c0 RCX: 00007f08c4668c5e [ 2261.574235][ T9088] RDX: 0000000000000004 RSI: 0000556419bd9f80 RDI: 0000000000000001 [ 2261.574462][ T9088] RBP: 00007fff6f767bb0 R08: 0000000000000000 R09: 0000000000000000 [ 2261.574694][ T9088] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004 Finger prints: nsim_destroy:__nsim_dev_port_del:nsim_dev_reload_destroy:nsim_drv_remove:device_release_driver_internal