====================================== | [ 24.895935][ T537] MSG1=MSG2=MSG3=MSG4=MSG5=MSG6=MSG7=MSG8=MSG9=MSG10=MSG11=MSG12=MSG13=MSG14=MSG15=MSG16=MSG17=MSG18=MSG19=MSG20=MSG21=MSG22=MSG23=MSG24=MSG25=MSG26=MSG27=MSG28=MSG29=MSG30=MSG31=MSG32=MSG33=MSG34=MSG35=MSG36=MSG37=MSG38=MSG39=MSG40=MSG41=MSG42=MSG43=MSG44=MSG45=MSG46=MSG47=MSG48=MSG49=MSG50=MSG51=MSG52=MSG53=MSG54=MSG55=MSG56=MSG57=MSG58=MSG59=MSG60=MSG61=MSG62=MSG63=MSG64=MSG65=MSG66=MSG67=MSG68=MSG69=MSG70=MSG71=MSG72=MSG73=MSG74=MSG75=MSG76=MSG77=MSG78=MSG79=MSG80=MSG81=MSG82=MSG83=MSG84=MSG85=MSG86=MSG87=MSG88=MSG89=MSG90=MSG91=MSG92=MSG93=MSG94=MSG95=MSG96=MSG97=MSG98=MSG99=MSG100=MSG101=MSG102=MSG103=MSG104=MSG105=MSG106=MSG107=MSG108=MSG109=MSG110=MSG111=MSG112=MSG113=MSG114=MSG115=MSG116=MSG117=MSG118=MSG119=MSG120=MSG121=MSG122=MSG123=MSG124=MSG125=MSG126=MSG127=MSG128=MSG129=MSG130=MSG131=MSG132=MSG133=MSG134=MSG135=MSG136=MSG137=MSG138=MSG139=MSG140=MSG141=MSG142=MSG143=MSG144=MSG145=MSG146=MSG147=MSG148=MSG149=MSG150=: netcons_Z4Ywc | [ 24.896836][ T592] ------------[ cut here ]------------ | [ 24.897918][ T592] WARNING: kernel/softirq.c:430 at __local_bh_enable_ip+0xc0/0x140, CPU#3: pr/netcon_ext0/592 | [ 24.898199][ T592] Modules linked in: netconsole netdevsim [ 24.898646][ T592] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 24.898825][ T592] RIP: 0010:__local_bh_enable_ip (kernel/softirq.c:430 (discriminator 34)) [ 24.899023][ T592] Code: 00 00 00 e8 12 15 0a 00 e8 3d 7c 3c 00 fb 65 8b 05 05 72 40 04 85 c0 74 64 48 83 c4 10 c3 65 8b 05 11 b6 40 04 85 c0 75 a2 90 <0f> 0b 90 eb 9c 89 74 24 0c 4c 89 04 24 e8 ce 7f 3c 00 8b 74 24 0c All code ======== 0: 00 00 add %al,(%rax) 2: 00 e8 add %ch,%al 4: 12 15 0a 00 e8 3d adc 0x3de8000a(%rip),%dl # 0x3de80014 a: 7c 3c jl 0x48 c: 00 fb add %bh,%bl e: 65 8b 05 05 72 40 04 mov %gs:0x4407205(%rip),%eax # 0x440721a 15: 85 c0 test %eax,%eax 17: 74 64 je 0x7d 19: 48 83 c4 10 add $0x10,%rsp 1d: c3 ret 1e: 65 8b 05 11 b6 40 04 mov %gs:0x440b611(%rip),%eax # 0x440b636 25: 85 c0 test %eax,%eax 27: 75 a2 jne 0xffffffffffffffcb 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: eb 9c jmp 0xffffffffffffffcb 2f: 89 74 24 0c mov %esi,0xc(%rsp) 33: 4c 89 04 24 mov %r8,(%rsp) 37: e8 ce 7f 3c 00 call 0x3c800a 3c: 8b 74 24 0c mov 0xc(%rsp),%esi Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: eb 9c jmp 0xffffffffffffffa1 5: 89 74 24 0c mov %esi,0xc(%rsp) 9: 4c 89 04 24 mov %r8,(%rsp) d: e8 ce 7f 3c 00 call 0x3c7fe0 12: 8b 74 24 0c mov 0xc(%rsp),%esi [ 24.899521][ T592] RSP: 0018:ffa00000006a7868 EFLAGS: 00010046 [ 24.899694][ T592] RAX: 0000000000000000 RBX: 00000000721cad2b RCX: 1ffffffff0d8ca80 [ 24.899901][ T592] RDX: 0000000000000001 RSI: 0000000000000201 RDI: ffffffff84a657ff [ 24.900108][ T592] RBP: ffa00000006a7898 R08: ffffffff84a657ff R09: ffe21c000139c963 [ 24.900313][ T592] R10: ffe21c000139c964 R11: ff11000009ce4b14 R12: ffa00000006a7940 [ 24.900526][ T592] R13: ff1100000a87a800 R14: ff1100000cad2000 R15: ff11000004c2ad00 [ 24.900734][ T592] FS: 0000000000000000(0000) GS:ff110000a820b000(0000) knlGS:0000000000000000 [ 24.900983][ T592] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.901155][ T592] CR2: 000055dad3030fe0 CR3: 0000000004fdb003 CR4: 0000000000771ef0 [ 24.901366][ T592] PKRU: 55555554 [ 24.901472][ T592] Call Trace: [ 24.901576][ T592] [ 24.901647][ T592] ? _raw_spin_unlock_bh (./include/linux/spinlock_api_smp.h:196 (discriminator 1) kernel/locking/spinlock.c:210 (discriminator 1)) [ 24.901794][ T592] mock_phc_gettime64 (drivers/ptp/ptp_mock.c:98) [ 24.901932][ T592] nsim_start_xmit (./include/linux/skbuff.h:1724 ./include/linux/skbuff.h:1787 drivers/net/netdevsim/netdev.c:189) netdevsim [ 24.902387][ T592] ? __lock_acquire (kernel/locking/lockdep.c:5237 (discriminator 1)) [ 24.902525][ T592] ? nsim_poll (drivers/net/netdevsim/netdev.c:123) netdevsim [ 24.902664][ T592] ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5870) [ 24.902800][ T592] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 1) kernel/rcu/tree.c:752 (discriminator 1)) [ 24.903022][ T592] ? netif_skb_features (net/core/dev.c:3747 net/core/dev.c:3856) [ 24.903161][ T592] netpoll_start_xmit (./include/linux/netdevice.h:5285 net/core/netpoll.c:82) [ 24.903298][ T592] __netpoll_send_skb (net/core/netpoll.c:341) [ 24.903442][ T592] netpoll_send_skb (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 net/core/netpoll.c:408) [ 24.903657][ T592] send_fragmented_body (drivers/net/netconsole.c:1653 drivers/net/netconsole.c:1797) netconsole [ 24.903830][ T592] netconsole_write (drivers/net/netconsole.c:1915) netconsole [ 24.904004][ T592] nbcon_emit_next_record (kernel/printk/nbcon.c:1070) [ 24.904222][ T592] ? nbcon_can_proceed (kernel/printk/nbcon.c:981) [ 24.904367][ T592] ? nbcon_context_try_acquire (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/printk/nbcon.c:170 kernel/printk/nbcon.c:630) [ 24.904540][ T592] nbcon_emit_one (kernel/printk/nbcon.c:1157 (discriminator 1)) [ 24.904675][ T592] ? nbcon_emit_next_record (kernel/printk/nbcon.c:1130) [ 24.904812][ T592] nbcon_kthread_func (kernel/printk/nbcon.c:1273) [ 24.904954][ T592] ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221) [ 24.905120][ T592] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536) [ 24.905257][ T592] ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221) [ 24.905512][ T592] ? __kthread_parkme (./arch/x86/include/asm/bitops.h:202 (discriminator 1) ./arch/x86/include/asm/bitops.h:232 (discriminator 1) ./include/asm-generic/bitops/instrumented-non-atomic.h:142 (discriminator 1) kernel/kthread.c:290 (discriminator 1)) [ 24.905652][ T592] ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221) [ 24.905824][ T592] kthread (kernel/kthread.c:467) [ 24.905927][ T592] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33)) [ 24.906186][ T592] ? kthread_affine_node (kernel/kthread.c:412) [ 24.906320][ T592] ret_from_fork (arch/x86/kernel/process.c:164) [ 24.906463][ T592] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37) [ 24.906713][ T592] ? __switch_to (./arch/x86/include/asm/cpufeature.h:101 arch/x86/kernel/process_64.c:377 arch/x86/kernel/process_64.c:665) [ 24.906851][ T592] ? kthread_affine_node (kernel/kthread.c:412) [ 24.906991][ T592] ret_from_fork_asm (arch/x86/entry/entry_64.S:255) | [ 24.909217][ T592] netpoll_send_skb_on_dev(): eni348np1 enabled interrupts in poll nsim_start_xmit (drivers/net/netdevsim/netdev.c:123) netdevsim | [ 24.909623][ T592] WARNING: net/core/netpoll.c:356 at __netpoll_send_skb+0x710/0x800, CPU#3: pr/netcon_ext0/592 | [ 24.909884][ T592] Modules linked in: netconsole netdevsim | [ 24.910356][ T592] Tainted: [W]=WARN [ 24.910455][ T592] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 24.910617][ T592] RIP: 0010:__netpoll_send_skb (net/core/netpoll.c:356 (discriminator 11)) [ 24.910867][ T592] Code: 08 49 8d 7c 24 20 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 d9 00 00 00 48 8d 3d a0 72 ea 01 49 8b 54 24 20 48 8d b3 18 01 00 00 <67> 48 0f b9 3a e9 cc fd ff ff e8 65 3f ca fe e9 56 fb ff ff e8 7b All code ======== 0: 08 49 8d or %cl,-0x73(%rcx) 3: 7c 24 jl 0x29 5: 20 48 89 and %cl,-0x77(%rax) 8: fa cli 9: 48 c1 ea 03 shr $0x3,%rdx d: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 11: 0f 85 d9 00 00 00 jne 0xf0 17: 48 8d 3d a0 72 ea 01 lea 0x1ea72a0(%rip),%rdi # 0x1ea72be 1e: 49 8b 54 24 20 mov 0x20(%r12),%rdx 23: 48 8d b3 18 01 00 00 lea 0x118(%rbx),%rsi 2a:* 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: e9 cc fd ff ff jmp 0xfffffffffffffe00 34: e8 65 3f ca fe call 0xfffffffffeca3f9e 39: e9 56 fb ff ff jmp 0xfffffffffffffb94 3e: e8 .byte 0xe8 3f: 7b .byte 0x7b Code starting with the faulting instruction =========================================== 0: 67 48 0f b9 3a ud1 (%edx),%rdi 5: e9 cc fd ff ff jmp 0xfffffffffffffdd6 a: e8 65 3f ca fe call 0xfffffffffeca3f74 f: e9 56 fb ff ff jmp 0xfffffffffffffb6a 14: e8 .byte 0xe8 15: 7b .byte 0x7b [ 24.911325][ T592] RSP: 0018:ffa00000006a79f0 EFLAGS: 00010246 [ 24.911495][ T592] RAX: dffffc0000000000 RBX: ff11000004c2a000 RCX: 0000000000000002 [ 24.911684][ T592] RDX: ffffffffc0405f00 RSI: ff11000004c2a118 RDI: ffffffff86cb1be0 [ 24.911881][ T592] RBP: ff11000009ce7a00 R08: ffffffff832fcb29 R09: ffe21c0001510060 [ 24.912078][ T592] R10: ffe21c0001510061 R11: 0000000000000001 R12: ffffffffc02b6c60 [ 24.912267][ T592] R13: 0000000000000003 R14: ff11000004c2a004 R15: ff1100000a880200 [ 24.912466][ T592] FS: 0000000000000000(0000) GS:ff110000a820b000(0000) knlGS:0000000000000000 [ 24.912693][ T592] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.912864][ T592] CR2: 000055dad3030fe0 CR3: 0000000004fdb003 CR4: 0000000000771ef0 [ 24.913062][ T592] PKRU: 55555554 [ 24.913161][ T592] Call Trace: [ 24.913261][ T592] [ 24.913330][ T592] netpoll_send_skb (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 net/core/netpoll.c:408) [ 24.913462][ T592] send_fragmented_body (drivers/net/netconsole.c:1653 drivers/net/netconsole.c:1797) netconsole [ 24.913623][ T592] netconsole_write (drivers/net/netconsole.c:1915) netconsole [ 24.913792][ T592] nbcon_emit_next_record (kernel/printk/nbcon.c:1070) [ 24.913921][ T592] ? nbcon_can_proceed (kernel/printk/nbcon.c:981) [ 24.914052][ T592] ? nbcon_context_try_acquire (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/printk/nbcon.c:170 kernel/printk/nbcon.c:630) [ 24.914215][ T592] nbcon_emit_one (kernel/printk/nbcon.c:1157 (discriminator 1)) [ 24.914344][ T592] ? nbcon_emit_next_record (kernel/printk/nbcon.c:1130) [ 24.914474][ T592] nbcon_kthread_func (kernel/printk/nbcon.c:1273) [ 24.914604][ T592] ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221) [ 24.914765][ T592] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536) [ 24.914892][ T592] ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221) [ 24.915049][ T592] ? __kthread_parkme (./arch/x86/include/asm/bitops.h:202 (discriminator 1) ./arch/x86/include/asm/bitops.h:232 (discriminator 1) ./include/asm-generic/bitops/instrumented-non-atomic.h:142 (discriminator 1) kernel/kthread.c:290 (discriminator 1)) [ 24.915177][ T592] ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221) [ 24.915339][ T592] kthread (kernel/kthread.c:467) [ 24.915435][ T592] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33)) [ 24.915593][ T592] ? kthread_affine_node (kernel/kthread.c:412) [ 24.915719][ T592] ret_from_fork (arch/x86/kernel/process.c:164) [ 24.915853][ T592] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37) [ 24.916088][ T592] ? __switch_to (./arch/x86/include/asm/cpufeature.h:101 arch/x86/kernel/process_64.c:377 arch/x86/kernel/process_64.c:665) [ 24.916220][ T592] ? kthread_affine_node (kernel/kthread.c:412) [ 24.916349][ T592] ret_from_fork_asm (arch/x86/entry/entry_64.S:255) | [ 24.918054][ T592] raw_local_irq_restore() called with IRQs enabled | [ 24.918204][ T592] WARNING: kernel/locking/irqflag-debug.c:10 at warn_bogus_irq_restore+0xc/0x20, CPU#3: pr/netcon_ext0/592 | [ 24.918629][ T592] Modules linked in: netconsole netdevsim | [ 24.919053][ T592] Tainted: [W]=WARN [ 24.919150][ T592] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 24.919310][ T592] RIP: 0010:warn_bogus_irq_restore (kernel/locking/irqflag-debug.c:10 (discriminator 4)) [ 24.919482][ T592] Code: 25 86 48 89 54 24 08 48 89 0c 24 e8 7e 0d d1 fe 48 8b 54 24 08 48 8b 0c 24 e9 25 ff ff ff f3 0f 1e fa 90 48 8d 3d 54 d2 75 01 <67> 48 0f b9 3a 90 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f All code ======== 0: 25 86 48 89 54 and $0x54894886,%eax 5: 24 08 and $0x8,%al 7: 48 89 0c 24 mov %rcx,(%rsp) b: e8 7e 0d d1 fe call 0xfffffffffed10d8e 10: 48 8b 54 24 08 mov 0x8(%rsp),%rdx 15: 48 8b 0c 24 mov (%rsp),%rcx 19: e9 25 ff ff ff jmp 0xffffffffffffff43 1e: f3 0f 1e fa endbr64 22: 90 nop 23: 48 8d 3d 54 d2 75 01 lea 0x175d254(%rip),%rdi # 0x175d27e 2a:* 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: 90 nop 30: c3 ret 31: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 38: 00 00 00 3b: 0f 1f 00 nopl (%rax) 3e: f3 repz 3f: 0f .byte 0xf Code starting with the faulting instruction =========================================== 0: 67 48 0f b9 3a ud1 (%edx),%rdi 5: 90 nop 6: c3 ret 7: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) e: 00 00 00 11: 0f 1f 00 nopl (%rax) 14: f3 repz 15: 0f .byte 0xf [ 24.919939][ T592] RSP: 0018:ffa00000006a7a48 EFLAGS: 00010202 [ 24.920101][ T592] RAX: 0000000000000000 RBX: 000000000000046f RCX: 0000000000000000 [ 24.920290][ T592] RDX: 0000000000000286 RSI: ffffffff85dbc59e RDI: ffffffff86c7ae60 [ 24.920557][ T592] RBP: 0000000000000000 R08: 0000000000000001 R09: ffe21c0001510060 [ 24.920748][ T592] R10: 0000000000000003 R11: 0000000000000001 R12: 00000000000003bc [ 24.920937][ T592] R13: 00000000000003bc R14: ff11000005991650 R15: 00000000000003bc [ 24.921134][ T592] FS: 0000000000000000(0000) GS:ff110000a820b000(0000) knlGS:0000000000000000 [ 24.921363][ T592] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.921521][ T592] CR2: 000055dad3030fe0 CR3: 0000000037d3b004 CR4: 0000000000771ef0 [ 24.921710][ T592] PKRU: 55555554 [ 24.921808][ T592] Call Trace: [ 24.921901][ T592] [ 24.921971][ T592] netpoll_send_skb (net/core/netpoll.c:408 (discriminator 12)) [ 24.922100][ T592] send_fragmented_body (drivers/net/netconsole.c:1653 drivers/net/netconsole.c:1797) netconsole [ 24.922264][ T592] netconsole_write (drivers/net/netconsole.c:1915) netconsole [ 24.922426][ T592] nbcon_emit_next_record (kernel/printk/nbcon.c:1070) [ 24.922554][ T592] ? nbcon_can_proceed (kernel/printk/nbcon.c:981) [ 24.922680][ T592] ? nbcon_context_try_acquire (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/printk/nbcon.c:170 kernel/printk/nbcon.c:630) [ 24.922846][ T592] nbcon_emit_one (kernel/printk/nbcon.c:1157 (discriminator 1)) [ 24.923052][ T592] ? nbcon_emit_next_record (kernel/printk/nbcon.c:1130) [ 24.923182][ T592] nbcon_kthread_func (kernel/printk/nbcon.c:1273) [ 24.923314][ T592] ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221) [ 24.923473][ T592] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536) [ 24.923607][ T592] ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221) [ 24.923841][ T592] ? __kthread_parkme (./arch/x86/include/asm/bitops.h:202 (discriminator 1) ./arch/x86/include/asm/bitops.h:232 (discriminator 1) ./include/asm-generic/bitops/instrumented-non-atomic.h:142 (discriminator 1) kernel/kthread.c:290 (discriminator 1)) [ 24.923978][ T592] ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221) [ 24.924206][ T592] kthread (kernel/kthread.c:467) [ 24.924301][ T592] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33)) [ 24.924534][ T592] ? kthread_affine_node (kernel/kthread.c:412) [ 24.924661][ T592] ret_from_fork (arch/x86/kernel/process.c:164) [ 24.924792][ T592] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37) [ 24.925021][ T592] ? __switch_to (./arch/x86/include/asm/cpufeature.h:101 arch/x86/kernel/process_64.c:377 arch/x86/kernel/process_64.c:665) [ 24.925149][ T592] ? kthread_affine_node (kernel/kthread.c:412) [ 24.925274][ T592] ret_from_fork_asm (arch/x86/entry/entry_64.S:255) | [ 24.926634][ T592] ------------[ cut here ]------------ | [ 24.926763][ T592] WARNING: net/core/netpoll.c:502 at netpoll_send_udp+0xe41/0x1270, CPU#3: pr/netcon_ext0/592 | [ 24.927015][ T592] Modules linked in: netconsole netdevsim | [ 24.927574][ T592] Tainted: [W]=WARN [ 24.927679][ T592] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 24.927911][ T592] RIP: 0010:netpoll_send_udp (net/core/netpoll.c:502 (discriminator 9)) [ 24.928047][ T592] Code: c1 ea 03 66 83 3c 02 00 0f 85 b3 03 00 00 48 8b 43 40 48 8b 53 48 49 89 47 18 49 89 57 20 41 bf 86 dd ff ff e9 18 f9 ff ff 90 <0f> 0b 90 e9 e8 f1 ff ff 90 0f 0b 90 e9 94 f9 ff ff 48 8b 7c 24 18 All code ======== 0: c1 ea 03 shr $0x3,%edx 3: 66 83 3c 02 00 cmpw $0x0,(%rdx,%rax,1) 8: 0f 85 b3 03 00 00 jne 0x3c1 e: 48 8b 43 40 mov 0x40(%rbx),%rax 12: 48 8b 53 48 mov 0x48(%rbx),%rdx 16: 49 89 47 18 mov %rax,0x18(%r15) 1a: 49 89 57 20 mov %rdx,0x20(%r15) 1e: 41 bf 86 dd ff ff mov $0xffffdd86,%r15d 24: e9 18 f9 ff ff jmp 0xfffffffffffff941 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: e9 e8 f1 ff ff jmp 0xfffffffffffff21a 32: 90 nop 33: 0f 0b ud2 35: 90 nop 36: e9 94 f9 ff ff jmp 0xfffffffffffff9cf 3b: 48 8b 7c 24 18 mov 0x18(%rsp),%rdi Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: e9 e8 f1 ff ff jmp 0xfffffffffffff1f0 8: 90 nop 9: 0f 0b ud2 b: 90 nop c: e9 94 f9 ff ff jmp 0xfffffffffffff9a5 11: 48 8b 7c 24 18 mov 0x18(%rsp),%rdi [ 24.928497][ T592] RSP: 0018:ffa00000006a7a00 EFLAGS: 00010202 [ 24.928655][ T592] RAX: 0000000000000286 RBX: ff11000005991550 RCX: 00000000000000e1 [ 24.928850][ T592] RDX: 00000000000000e1 RSI: ff11000005991650 RDI: ff11000005991550 [ 24.929040][ T592] RBP: ffa00000006a7a58 R08: 00000000000000b1 R09: ffe21c0000b322d0 [ 24.929226][ T592] R10: ffe21c0000b322e7 R11: 0000000000000000 R12: 00000000000003be [ 24.929419][ T592] R13: 000000000000046f R14: ff11000005991650 R15: 0000000000000002 [ 24.929614][ T592] FS: 0000000000000000(0000) GS:ff110000a820b000(0000) knlGS:0000000000000000 [ 24.929836][ T592] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.929997][ T592] CR2: 000055dad3030fe0 CR3: 0000000037d3b004 CR4: 0000000000771ef0 [ 24.930184][ T592] PKRU: 55555554 [ 24.930280][ T592] Call Trace: [ 24.930445][ T592] [ 24.930510][ T592] ? warn_bogus_irq_restore (kernel/locking/irqflag-debug.c:11) [ 24.930705][ T592] send_fragmented_body (drivers/net/netconsole.c:1653 drivers/net/netconsole.c:1797) netconsole [ 24.930867][ T592] netconsole_write (drivers/net/netconsole.c:1915) netconsole [ 24.931029][ T592] nbcon_emit_next_record (kernel/printk/nbcon.c:1070) [ 24.931223][ T592] ? nbcon_can_proceed (kernel/printk/nbcon.c:981) [ 24.931359][ T592] ? nbcon_context_try_acquire (./arch/x86/include/asm/atomic64_64.h:15 ./include/linux/atomic/atomic-arch-fallback.h:2583 ./include/linux/atomic/atomic-long.h:38 ./include/linux/atomic/atomic-instrumented.h:3189 kernel/printk/nbcon.c:170 kernel/printk/nbcon.c:630) [ 24.931517][ T592] nbcon_emit_one (kernel/printk/nbcon.c:1157 (discriminator 1)) [ 24.931710][ T592] ? nbcon_emit_next_record (kernel/printk/nbcon.c:1130) [ 24.931841][ T592] nbcon_kthread_func (kernel/printk/nbcon.c:1273) [ 24.931971][ T592] ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221) [ 24.932130][ T592] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5536) [ 24.932253][ T592] ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221) [ 24.932416][ T592] ? __kthread_parkme (./arch/x86/include/asm/bitops.h:202 (discriminator 1) ./arch/x86/include/asm/bitops.h:232 (discriminator 1) ./include/asm-generic/bitops/instrumented-non-atomic.h:142 (discriminator 1) kernel/kthread.c:290 (discriminator 1)) [ 24.932610][ T592] ? __nbcon_atomic_flush_pending (kernel/printk/nbcon.c:1221) [ 24.932770][ T592] kthread (kernel/kthread.c:467) [ 24.932864][ T592] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 33)) [ 24.933021][ T592] ? kthread_affine_node (kernel/kthread.c:412) [ 24.933145][ T592] ret_from_fork (arch/x86/kernel/process.c:164) [ 24.933272][ T592] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/syscall_64.c:37) [ 24.933500][ T592] ? __switch_to (./arch/x86/include/asm/cpufeature.h:101 arch/x86/kernel/process_64.c:377 arch/x86/kernel/process_64.c:665) [ 24.933625][ T592] ? kthread_affine_node (kernel/kthread.c:412) Finger prints: __netpoll_send_skb:netpoll_send_skb:send_fragmented_body:netconsole_write:nbcon_emit_next_record netpoll_send_udp:send_fragmented_body:netconsole_write:nbcon_emit_next_record:nbcon_emit_one warn_bogus_irq_restore:netpoll_send_skb:send_fragmented_body:netconsole_write:nbcon_emit_next_record __local_bh_enable_ip:mock_phc_gettime64:nsim_start_xmit:netpoll_start_xmit:__netpoll_send_skb