====================================== | [ 14.684522][ T218] netconsole selftest: netcons_B6Zf5 | [ 14.685145][ T218] ------------[ cut here ]------------ | [ 14.685150][ T218] WARNING: CPU: 1 PID: 218 at kernel/softirq.c:369 __local_bh_enable_ip (kernel/softirq.c:369) | [ 14.685168][ T218] Modules linked in: netconsole netdevsim [ 14.685184][ T218] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.685188][ T218] RIP: 0010:__local_bh_enable_ip (kernel/softirq.c:369) [ 14.685195][ T218] Code: ff 0d 77 48 3d 6e e8 4a b9 3a 00 fb 65 8b 05 6a 48 3d 6e 85 c0 74 46 5b 5d c3 cc cc cc cc 65 8b 05 5c 0c 3c 6e 85 c0 75 a1 90 <0f> 0b 90 eb 9b e8 31 b7 3a 00 eb 9c 48 89 ef e8 17 53 15 00 eb a5 All code ======== 0: ff 0d 77 48 3d 6e decl 0x6e3d4877(%rip) # 0x6e3d487d 6: e8 4a b9 3a 00 call 0x3ab955 b: fb sti c: 65 8b 05 6a 48 3d 6e mov %gs:0x6e3d486a(%rip),%eax # 0x6e3d487d 13: 85 c0 test %eax,%eax 15: 74 46 je 0x5d 17: 5b pop %rbx 18: 5d pop %rbp 19: c3 ret 1a: cc int3 1b: cc int3 1c: cc int3 1d: cc int3 1e: 65 8b 05 5c 0c 3c 6e mov %gs:0x6e3c0c5c(%rip),%eax # 0x6e3c0c81 25: 85 c0 test %eax,%eax 27: 75 a1 jne 0xffffffffffffffca 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: eb 9b jmp 0xffffffffffffffca 2f: e8 31 b7 3a 00 call 0x3ab765 34: eb 9c jmp 0xffffffffffffffd2 36: 48 89 ef mov %rbp,%rdi 39: e8 17 53 15 00 call 0x155355 3e: eb a5 jmp 0xffffffffffffffe5 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: eb 9b jmp 0xffffffffffffffa0 5: e8 31 b7 3a 00 call 0x3ab73b a: eb 9c jmp 0xffffffffffffffa8 c: 48 89 ef mov %rbp,%rdi f: e8 17 53 15 00 call 0x15532b 14: eb a5 jmp 0xffffffffffffffbb [ 14.685201][ T218] RSP: 0018:ffffc90000a57720 EFLAGS: 00010046 [ 14.685206][ T218] RAX: 0000000000000000 RBX: 0000000000000200 RCX: 1ffffffff2bf06c2 [ 14.685210][ T218] RDX: 0000000000000000 RSI: 0000000000000200 RDI: ffffffffc03a2996 [ 14.685212][ T218] RBP: ffffffffc03a2996 R08: 0000000000000000 R09: fffffbfff2bf0472 [ 14.685215][ T218] R10: ffffffff95f82397 R11: ffffc90000a572a1 R12: ffff888009c1f200 [ 14.685219][ T218] R13: 0000000000000076 R14: ffff888008c8c000 R15: ffff8880088a2000 [ 14.685222][ T218] FS: 00007fe8b2f34740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000 [ 14.685226][ T218] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 14.685232][ T218] CR2: 00007fe8b30e8733 CR3: 0000000009b5e003 CR4: 0000000000772ef0 [ 14.685236][ T218] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 14.685238][ T218] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 14.685242][ T218] PKRU: 55555554 [ 14.685244][ T218] Call Trace: [ 14.685246][ T218] [ 14.685249][ T218] ? __local_bh_enable_ip (kernel/softirq.c:369) [ 14.685255][ T218] ? __warn (kernel/panic.c:748) [ 14.685264][ T218] ? __local_bh_enable_ip (kernel/softirq.c:369) [ 14.685277][ T218] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 14.685299][ T218] ? handle_bug (arch/x86/kernel/traps.c:285) [ 14.685309][ T218] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) [ 14.685317][ T218] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) [ 14.685332][ T218] ? nsim_start_xmit (./include/linux/bottom_half.h:33 drivers/net/netdevsim/netdev.c:92) netdevsim [ 14.685372][ T218] ? nsim_start_xmit (./include/linux/bottom_half.h:33 drivers/net/netdevsim/netdev.c:92) netdevsim [ 14.685392][ T218] ? __local_bh_enable_ip (kernel/softirq.c:369) [ 14.685409][ T218] nsim_start_xmit (./include/linux/rcupdate.h:878 drivers/net/netdevsim/netdev.c:94) netdevsim [ 14.685431][ T218] ? netif_skb_features (net/core/dev.c:3666 net/core/dev.c:3758) [ 14.685450][ T218] netpoll_start_xmit (./include/linux/netdevice.h:5170 ./include/linux/netdevice.h:5179 net/core/netpoll.c:89) [ 14.685473][ T218] __netpoll_send_skb (net/core/netpoll.c:350) [ 14.685504][ T218] netpoll_send_skb (net/core/netpoll.c:386) [ 14.685513][ T218] send_ext_msg_udp (drivers/net/netconsole.c:1237 drivers/net/netconsole.c:1275 drivers/net/netconsole.c:1431) netconsole [ 14.685538][ T218] write_ext_msg (drivers/net/netconsole.c:1449 drivers/net/netconsole.c:1437) netconsole [ 14.685560][ T218] console_emit_next_record (kernel/printk/printk.c:3122 (discriminator 3)) [ 14.685569][ T218] ? perf_trace_lock (./include/trace/events/lock.h:50 ./include/trace/events/lock.h:50 ./include/trace/events/lock.h:50) [ 14.685584][ T218] ? __pfx_console_emit_next_record (kernel/printk/printk.c:3066) [ 14.685620][ T218] console_flush_all (kernel/printk/printk.c:3211) [ 14.685639][ T218] ? __pfx_console_flush_all (kernel/printk/printk.c:3172) [ 14.685669][ T218] console_unlock (kernel/printk/printk.c:3270 kernel/printk/printk.c:3309) [ 14.685677][ T218] ? __pfx_console_unlock (kernel/printk/printk.c:3304) [ 14.685683][ T218] ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5853) [ 14.685687][ T218] ? vprintk_emit.part.0 (kernel/printk/printk.c:2431) [ 14.685699][ T218] ? vprintk_emit.part.0 (kernel/printk/printk.c:2431) [ 14.685705][ T218] ? __down_trylock_console_sem (kernel/printk/printk.c:332) [ 14.685709][ T218] ? vprintk_emit.part.0 (kernel/printk/printk.c:2431) [ 14.685724][ T218] vprintk_emit.part.0 (kernel/printk/printk.c:2432) [ 14.685735][ T218] ? __pfx_vprintk_emit.part.0 (kernel/printk/printk.c:2378) [ 14.685750][ T218] ? other_cpu_in_panic (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 kernel/printk/printk.c:350 kernel/printk/printk.c:373) [ 14.685767][ T218] devkmsg_emit.constprop.0 (kernel/printk/printk.c:749) [ 14.685776][ T218] ? __pfx_devkmsg_emit.constprop.0 (kernel/printk/printk.c:749) [ 14.685790][ T218] ? __kasan_kmalloc (mm/kasan/common.c:398) [ 14.685799][ T218] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 21)) [ 14.685809][ T218] ? __kmalloc_noprof (mm/slub.c:4307) [ 14.685813][ T218] ? ___ratelimit (lib/ratelimit.c:75) [ 14.685833][ T218] devkmsg_write (kernel/printk/printk.c:819) [ 14.685838][ T218] ? usage_skip (kernel/locking/lockdep.c:2286) [ 14.685847][ T218] ? __pfx_devkmsg_write (kernel/printk/printk.c:762) [ 14.685876][ T218] vfs_write (fs/read_write.c:586 fs/read_write.c:679) [ 14.685895][ T218] ? __pfx_vfs_write (fs/read_write.c:660) [ 14.685912][ T218] ? __lock_release (kernel/locking/lockdep.c:5527) [ 14.685916][ T218] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) [ 14.685939][ T218] ? __pfx___up_read (kernel/locking/rwsem.c:1337) [ 14.685961][ T218] ksys_write (fs/read_write.c:731) [ 14.685971][ T218] ? __pfx_ksys_write (fs/read_write.c:721) [ 14.685975][ T218] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) [ 14.686003][ T218] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 14.686016][ T218] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 14.686022][ T218] RIP: 0033:0x7fe8b3075b77 [ 14.686030][ T218] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 All code ======== 0: 0b 00 or (%rax),%eax 2: f7 d8 neg %eax 4: 64 89 02 mov %eax,%fs:(%rdx) 7: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax e: eb b7 jmp 0xffffffffffffffc7 10: 0f 1f 00 nopl (%rax) 13: f3 0f 1e fa endbr64 17: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax 1e: 00 1f: 85 c0 test %eax,%eax 21: 75 10 jne 0x33 23: b8 01 00 00 00 mov $0x1,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 51 ja 0x83 32: c3 ret 33: 48 83 ec 28 sub $0x28,%rsp 37: 48 89 54 24 18 mov %rdx,0x18(%rsp) 3c: 48 rex.W 3d: 89 .byte 0x89 3e: 74 24 je 0x64 Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 51 ja 0x59 8: c3 ret 9: 48 83 ec 28 sub $0x28,%rsp d: 48 89 54 24 18 mov %rdx,0x18(%rsp) 12: 48 rex.W 13: 89 .byte 0x89 14: 74 24 je 0x3a [ 14.686034][ T218] RSP: 002b:00007ffe6f402a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 14.686039][ T218] RAX: ffffffffffffffda RBX: 0000000000000023 RCX: 00007fe8b3075b77 [ 14.686043][ T218] RDX: 0000000000000023 RSI: 0000558878127e00 RDI: 0000000000000001 [ 14.686046][ T218] RBP: 0000558878127e00 R08: 0000000000000000 R09: 00007fe8b30e84e0 [ 14.686049][ T218] R10: 00007fe8b30e83e0 R11: 0000000000000246 R12: 0000000000000023 [ 14.686052][ T218] R13: 00007fe8b3131760 R14: 0000000000000023 R15: 00007fe8b312c9c0 | [ 14.687033][ T218] netpoll_send_skb_on_dev(): eni288np1 enabled interrupts in poll nsim_start_xmit (drivers/net/netdevsim/netdev.c:56) netdevsim | [ 14.687122][ T218] WARNING: CPU: 1 PID: 218 at net/core/netpoll.c:363 __netpoll_send_skb (net/core/netpoll.c:363 (discriminator 3)) | [ 14.687134][ T218] Modules linked in: netconsole netdevsim | [ 14.687152][ T218] Tainted: [W]=WARN [ 14.687154][ T218] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.687158][ T218] RIP: 0010:__netpoll_send_skb (net/core/netpoll.c:363 (discriminator 3)) [ 14.687164][ T218] Code: fa 48 c1 ea 03 80 3c 02 00 0f 85 d2 00 00 00 48 8b 55 20 48 8d b3 18 01 00 00 48 c7 c7 80 49 b8 94 89 0c 24 e8 ce 42 dd fd 90 <0f> 0b 90 90 8b 0c 24 e9 e8 fd ff ff e8 3c a9 64 fe e9 48 fa ff ff All code ======== 0: fa cli 1: 48 c1 ea 03 shr $0x3,%rdx 5: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 9: 0f 85 d2 00 00 00 jne 0xe1 f: 48 8b 55 20 mov 0x20(%rbp),%rdx 13: 48 8d b3 18 01 00 00 lea 0x118(%rbx),%rsi 1a: 48 c7 c7 80 49 b8 94 mov $0xffffffff94b84980,%rdi 21: 89 0c 24 mov %ecx,(%rsp) 24: e8 ce 42 dd fd call 0xfffffffffddd42f7 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: 8b 0c 24 mov (%rsp),%ecx 31: e9 e8 fd ff ff jmp 0xfffffffffffffe1e 36: e8 3c a9 64 fe call 0xfffffffffe64a977 3b: e9 48 fa ff ff jmp 0xfffffffffffffa88 Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: 8b 0c 24 mov (%rsp),%ecx 7: e9 e8 fd ff ff jmp 0xfffffffffffffdf4 c: e8 3c a9 64 fe call 0xfffffffffe64a94d 11: e9 48 fa ff ff jmp 0xfffffffffffffa5e [ 14.687169][ T218] RSP: 0018:ffffc90000a577c8 EFLAGS: 00010286 [ 14.687174][ T218] RAX: 0000000000000000 RBX: ffff88800d022000 RCX: 0000000000000027 [ 14.687178][ T218] RDX: 0000000000000027 RSI: 0000000000000004 RDI: ffff8880360a8ac8 [ 14.687181][ T218] RBP: ffffffffc03d9ac0 R08: 0000000000000001 R09: ffffed1006c15159 [ 14.687184][ T218] R10: ffff8880360a8acb R11: 0000000000000004 R12: ffff88800898b6c0 [ 14.687188][ T218] R13: ffff88800b2a1400 R14: ffff88800d022000 R15: ffffed1001a04400 [ 14.687192][ T218] FS: 00007fe8b2f34740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000 [ 14.687196][ T218] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 14.687202][ T218] CR2: 00007fe8b30e8733 CR3: 0000000009b5e003 CR4: 0000000000772ef0 [ 14.687206][ T218] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 14.687209][ T218] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 14.687212][ T218] PKRU: 55555554 [ 14.687214][ T218] Call Trace: [ 14.687216][ T218] [ 14.687219][ T218] ? __netpoll_send_skb (net/core/netpoll.c:363 (discriminator 3)) [ 14.687225][ T218] ? __warn (kernel/panic.c:748) [ 14.687231][ T218] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) [ 14.687239][ T218] ? __netpoll_send_skb (net/core/netpoll.c:363 (discriminator 3)) [ 14.687251][ T218] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 14.687272][ T218] ? handle_bug (arch/x86/kernel/traps.c:285) [ 14.687280][ T218] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) [ 14.687289][ T218] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) [ 14.687324][ T218] ? __netpoll_send_skb (net/core/netpoll.c:363 (discriminator 3)) [ 14.687335][ T218] ? __netpoll_send_skb (net/core/netpoll.c:363 (discriminator 3)) [ 14.687364][ T218] netpoll_send_skb (net/core/netpoll.c:386) [ 14.687375][ T218] send_ext_msg_udp (drivers/net/netconsole.c:1237 drivers/net/netconsole.c:1275 drivers/net/netconsole.c:1431) netconsole [ 14.687401][ T218] write_ext_msg (drivers/net/netconsole.c:1449 drivers/net/netconsole.c:1437) netconsole [ 14.687422][ T218] console_emit_next_record (kernel/printk/printk.c:3122 (discriminator 3)) [ 14.687454][ T218] ? perf_trace_lock (./include/trace/events/lock.h:50 ./include/trace/events/lock.h:50 ./include/trace/events/lock.h:50) [ 14.687468][ T218] ? __pfx_console_emit_next_record (kernel/printk/printk.c:3066) [ 14.687506][ T218] console_flush_all (kernel/printk/printk.c:3211) [ 14.687525][ T218] ? __pfx_console_flush_all (kernel/printk/printk.c:3172) [ 14.687557][ T218] console_unlock (kernel/printk/printk.c:3270 kernel/printk/printk.c:3309) [ 14.687566][ T218] ? __pfx_console_unlock (kernel/printk/printk.c:3304) [ 14.687573][ T218] ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5853) [ 14.687578][ T218] ? vprintk_emit.part.0 (kernel/printk/printk.c:2431) [ 14.687593][ T218] ? vprintk_emit.part.0 (kernel/printk/printk.c:2431) [ 14.687600][ T218] ? __down_trylock_console_sem (kernel/printk/printk.c:332) [ 14.687605][ T218] ? vprintk_emit.part.0 (kernel/printk/printk.c:2431) [ 14.687621][ T218] vprintk_emit.part.0 (kernel/printk/printk.c:2432) [ 14.687632][ T218] ? __pfx_vprintk_emit.part.0 (kernel/printk/printk.c:2378) [ 14.687647][ T218] ? other_cpu_in_panic (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 kernel/printk/printk.c:350 kernel/printk/printk.c:373) [ 14.687663][ T218] devkmsg_emit.constprop.0 (kernel/printk/printk.c:749) [ 14.687672][ T218] ? __pfx_devkmsg_emit.constprop.0 (kernel/printk/printk.c:749) [ 14.687686][ T218] ? __kasan_kmalloc (mm/kasan/common.c:398) [ 14.687695][ T218] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 21)) [ 14.687704][ T218] ? __kmalloc_noprof (mm/slub.c:4307) [ 14.687709][ T218] ? ___ratelimit (lib/ratelimit.c:75) [ 14.687732][ T218] devkmsg_write (kernel/printk/printk.c:819) [ 14.687737][ T218] ? usage_skip (kernel/locking/lockdep.c:2286) [ 14.687747][ T218] ? __pfx_devkmsg_write (kernel/printk/printk.c:762) [ 14.687777][ T218] vfs_write (fs/read_write.c:586 fs/read_write.c:679) [ 14.687796][ T218] ? __pfx_vfs_write (fs/read_write.c:660) [ 14.687815][ T218] ? __lock_release (kernel/locking/lockdep.c:5527) [ 14.687819][ T218] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) [ 14.687841][ T218] ? __pfx___up_read (kernel/locking/rwsem.c:1337) [ 14.687863][ T218] ksys_write (fs/read_write.c:731) [ 14.687873][ T218] ? __pfx_ksys_write (fs/read_write.c:721) [ 14.687878][ T218] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) [ 14.687907][ T218] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 14.687919][ T218] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 14.687925][ T218] RIP: 0033:0x7fe8b3075b77 [ 14.687932][ T218] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 All code ======== 0: 0b 00 or (%rax),%eax 2: f7 d8 neg %eax 4: 64 89 02 mov %eax,%fs:(%rdx) 7: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax e: eb b7 jmp 0xffffffffffffffc7 10: 0f 1f 00 nopl (%rax) 13: f3 0f 1e fa endbr64 17: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax 1e: 00 1f: 85 c0 test %eax,%eax 21: 75 10 jne 0x33 23: b8 01 00 00 00 mov $0x1,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 51 ja 0x83 32: c3 ret 33: 48 83 ec 28 sub $0x28,%rsp 37: 48 89 54 24 18 mov %rdx,0x18(%rsp) 3c: 48 rex.W 3d: 89 .byte 0x89 3e: 74 24 je 0x64 Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 51 ja 0x59 8: c3 ret 9: 48 83 ec 28 sub $0x28,%rsp d: 48 89 54 24 18 mov %rdx,0x18(%rsp) 12: 48 rex.W 13: 89 .byte 0x89 14: 74 24 je 0x3a [ 14.687936][ T218] RSP: 002b:00007ffe6f402a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 14.687941][ T218] RAX: ffffffffffffffda RBX: 0000000000000023 RCX: 00007fe8b3075b77 [ 14.687944][ T218] RDX: 0000000000000023 RSI: 0000558878127e00 RDI: 0000000000000001 [ 14.687947][ T218] RBP: 0000558878127e00 R08: 0000000000000000 R09: 00007fe8b30e84e0 [ 14.687949][ T218] R10: 00007fe8b30e83e0 R11: 0000000000000246 R12: 0000000000000023 [ 14.687952][ T218] R13: 00007fe8b3131760 R14: 0000000000000023 R15: 00007fe8b312c9c0 | [ 14.688019][ T218] raw_local_irq_restore() called with IRQs enabled | [ 14.688037][ T218] WARNING: CPU: 1 PID: 218 at kernel/locking/irqflag-debug.c:10 warn_bogus_irq_restore (kernel/locking/irqflag-debug.c:10 (discriminator 3)) | [ 14.688044][ T218] Modules linked in: netconsole netdevsim | [ 14.688057][ T218] Tainted: [W]=WARN [ 14.688059][ T218] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.688061][ T218] RIP: 0010:warn_bogus_irq_restore (kernel/locking/irqflag-debug.c:10 (discriminator 3)) [ 14.688065][ T218] Code: 85 9e a5 01 80 fb 01 77 27 83 e3 01 74 07 90 5b c3 cc cc cc cc c6 05 6d 9e a5 01 01 90 48 c7 c7 40 ac 6b 94 e8 4e 10 76 fd 90 <0f> 0b 90 90 eb de 0f b6 f3 48 c7 c7 20 b6 44 95 e8 18 9f 6d fe eb All code ======== 0: 85 9e a5 01 80 fb test %ebx,-0x47ffe5b(%rsi) 6: 01 77 27 add %esi,0x27(%rdi) 9: 83 e3 01 and $0x1,%ebx c: 74 07 je 0x15 e: 90 nop f: 5b pop %rbx 10: c3 ret 11: cc int3 12: cc int3 13: cc int3 14: cc int3 15: c6 05 6d 9e a5 01 01 movb $0x1,0x1a59e6d(%rip) # 0x1a59e89 1c: 90 nop 1d: 48 c7 c7 40 ac 6b 94 mov $0xffffffff946bac40,%rdi 24: e8 4e 10 76 fd call 0xfffffffffd761077 29: 90 nop 2a:* 0f 0b ud2 <-- trapping instruction 2c: 90 nop 2d: 90 nop 2e: eb de jmp 0xe 30: 0f b6 f3 movzbl %bl,%esi 33: 48 c7 c7 20 b6 44 95 mov $0xffffffff9544b620,%rdi 3a: e8 18 9f 6d fe call 0xfffffffffe6d9f57 3f: eb .byte 0xeb Code starting with the faulting instruction =========================================== 0: 0f 0b ud2 2: 90 nop 3: 90 nop 4: eb de jmp 0xffffffffffffffe4 6: 0f b6 f3 movzbl %bl,%esi 9: 48 c7 c7 20 b6 44 95 mov $0xffffffff9544b620,%rdi 10: e8 18 9f 6d fe call 0xfffffffffe6d9f2d 15: eb .byte 0xeb [ 14.688069][ T218] RSP: 0018:ffffc90000a57830 EFLAGS: 00010282 [ 14.688073][ T218] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000027 [ 14.688075][ T218] RDX: 0000000000000027 RSI: 0000000000000004 RDI: ffff8880360a8ac8 [ 14.688078][ T218] RBP: ffff88800a01a000 R08: 0000000000000001 R09: ffffed1006c15159 [ 14.688081][ T218] R10: ffff8880360a8acb R11: 0000000000000000 R12: 0000000000000000 [ 14.688084][ T218] R13: 00000000000003a7 R14: ffff88800a01b1f8 R15: ffff88800a01a120 [ 14.688087][ T218] FS: 00007fe8b2f34740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000 [ 14.688091][ T218] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 14.688095][ T218] CR2: 00007fe8b30e8733 CR3: 0000000009b5e003 CR4: 0000000000772ef0 [ 14.688098][ T218] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 14.688101][ T218] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 14.688103][ T218] PKRU: 55555554 [ 14.688106][ T218] Call Trace: [ 14.688108][ T218] [ 14.688110][ T218] ? warn_bogus_irq_restore (kernel/locking/irqflag-debug.c:10 (discriminator 3)) [ 14.688115][ T218] ? __warn (kernel/panic.c:748) [ 14.688122][ T218] ? warn_bogus_irq_restore (kernel/locking/irqflag-debug.c:10 (discriminator 3)) [ 14.688132][ T218] ? report_bug (lib/bug.c:201 lib/bug.c:219) [ 14.688150][ T218] ? handle_bug (arch/x86/kernel/traps.c:285) [ 14.688156][ T218] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) [ 14.688163][ T218] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) [ 14.688194][ T218] ? warn_bogus_irq_restore (kernel/locking/irqflag-debug.c:10 (discriminator 3)) [ 14.688207][ T218] netpoll_send_skb (net/core/netpoll.c:387 (discriminator 4)) [ 14.688219][ T218] send_ext_msg_udp (drivers/net/netconsole.c:1237 drivers/net/netconsole.c:1275 drivers/net/netconsole.c:1431) netconsole [ 14.688243][ T218] write_ext_msg (drivers/net/netconsole.c:1449 drivers/net/netconsole.c:1437) netconsole [ 14.688264][ T218] console_emit_next_record (kernel/printk/printk.c:3122 (discriminator 3)) [ 14.688271][ T218] ? perf_trace_lock (./include/trace/events/lock.h:50 ./include/trace/events/lock.h:50 ./include/trace/events/lock.h:50) [ 14.688284][ T218] ? __pfx_console_emit_next_record (kernel/printk/printk.c:3066) [ 14.688323][ T218] console_flush_all (kernel/printk/printk.c:3211) [ 14.688342][ T218] ? __pfx_console_flush_all (kernel/printk/printk.c:3172) [ 14.688373][ T218] console_unlock (kernel/printk/printk.c:3270 kernel/printk/printk.c:3309) [ 14.688382][ T218] ? __pfx_console_unlock (kernel/printk/printk.c:3304) [ 14.688390][ T218] ? lock_acquire.part.0 (kernel/locking/lockdep.c:470 kernel/locking/lockdep.c:5853) [ 14.688394][ T218] ? vprintk_emit.part.0 (kernel/printk/printk.c:2431) [ 14.688409][ T218] ? vprintk_emit.part.0 (kernel/printk/printk.c:2431) [ 14.688415][ T218] ? __down_trylock_console_sem (kernel/printk/printk.c:332) [ 14.688420][ T218] ? vprintk_emit.part.0 (kernel/printk/printk.c:2431) [ 14.688472][ T218] vprintk_emit.part.0 (kernel/printk/printk.c:2432) [ 14.688484][ T218] ? __pfx_vprintk_emit.part.0 (kernel/printk/printk.c:2378) [ 14.688499][ T218] ? other_cpu_in_panic (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 kernel/printk/printk.c:350 kernel/printk/printk.c:373) [ 14.688518][ T218] devkmsg_emit.constprop.0 (kernel/printk/printk.c:749) [ 14.688528][ T218] ? __pfx_devkmsg_emit.constprop.0 (kernel/printk/printk.c:749) [ 14.688542][ T218] ? __kasan_kmalloc (mm/kasan/common.c:398) [ 14.688550][ T218] ? trace_kmalloc (./include/trace/events/kmem.h:54 (discriminator 21)) [ 14.688558][ T218] ? __kmalloc_noprof (mm/slub.c:4307) [ 14.688563][ T218] ? ___ratelimit (lib/ratelimit.c:75) [ 14.688583][ T218] devkmsg_write (kernel/printk/printk.c:819) [ 14.688589][ T218] ? usage_skip (kernel/locking/lockdep.c:2286) [ 14.688598][ T218] ? __pfx_devkmsg_write (kernel/printk/printk.c:762) [ 14.688627][ T218] vfs_write (fs/read_write.c:586 fs/read_write.c:679) [ 14.688645][ T218] ? __pfx_vfs_write (fs/read_write.c:660) [ 14.688661][ T218] ? __lock_release (kernel/locking/lockdep.c:5527) [ 14.688665][ T218] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) [ 14.688687][ T218] ? __pfx___up_read (kernel/locking/rwsem.c:1337) [ 14.688708][ T218] ksys_write (fs/read_write.c:731) [ 14.688719][ T218] ? __pfx_ksys_write (fs/read_write.c:721) [ 14.688724][ T218] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) [ 14.688751][ T218] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 14.688764][ T218] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 14.688769][ T218] RIP: 0033:0x7fe8b3075b77 [ 14.688775][ T218] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 All code ======== 0: 0b 00 or (%rax),%eax 2: f7 d8 neg %eax 4: 64 89 02 mov %eax,%fs:(%rdx) 7: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax e: eb b7 jmp 0xffffffffffffffc7 10: 0f 1f 00 nopl (%rax) 13: f3 0f 1e fa endbr64 17: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax 1e: 00 1f: 85 c0 test %eax,%eax 21: 75 10 jne 0x33 23: b8 01 00 00 00 mov $0x1,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 51 ja 0x83 32: c3 ret 33: 48 83 ec 28 sub $0x28,%rsp 37: 48 89 54 24 18 mov %rdx,0x18(%rsp) 3c: 48 rex.W 3d: 89 .byte 0x89 3e: 74 24 je 0x64 Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 51 ja 0x59 8: c3 ret 9: 48 83 ec 28 sub $0x28,%rsp d: 48 89 54 24 18 mov %rdx,0x18(%rsp) 12: 48 rex.W 13: 89 .byte 0x89 14: 74 24 je 0x3a [ 14.688780][ T218] RSP: 002b:00007ffe6f402a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 14.688785][ T218] RAX: ffffffffffffffda RBX: 0000000000000023 RCX: 00007fe8b3075b77 [ 14.688789][ T218] RDX: 0000000000000023 RSI: 0000558878127e00 RDI: 0000000000000001 [ 14.688792][ T218] RBP: 0000558878127e00 R08: 0000000000000000 R09: 00007fe8b30e84e0 [ 14.688795][ T218] R10: 00007fe8b30e83e0 R11: 0000000000000246 R12: 0000000000000023 [ 14.688799][ T218] R13: 00007fe8b3131760 R14: 0000000000000023 R15: 00007fe8b312c9c0 | [ 14.811948][ C2] #3: ffffffff9555ad40 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit (./include/linux/bottom_half.h:20 ./include/linux/rcupdate.h:901 net/core/dev.c:4547) | [ 14.812457][ C2] | [ 14.812457][ C2] stack backtrace: | [ 14.812853][ C2] Tainted: [W]=WARN [ 14.812855][ C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.812859][ C2] Call Trace: [ 14.812862][ C2] [ 14.812865][ C2] dump_stack_lvl (lib/dump_stack.c:123) [ 14.812875][ C2] print_usage_bug.part.0 (kernel/locking/lockdep.c:4043) [ 14.812888][ C2] mark_lock_irq (kernel/locking/lockdep.c:4008 kernel/locking/lockdep.c:4054 kernel/locking/lockdep.c:4265) [ 14.812896][ C2] ? __pfx_mark_lock_irq (kernel/locking/lockdep.c:4256) [ 14.812902][ C2] ? stack_trace_save (kernel/stacktrace.c:123) [ 14.812909][ C2] ? __pfx_stack_trace_save (kernel/stacktrace.c:114) [ 14.812915][ C2] ? hlock_class (./arch/x86/include/asm/bitops.h:227 ./arch/x86/include/asm/bitops.h:239 ./include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:230) [ 14.812922][ C2] ? save_trace (kernel/locking/lockdep.c:590) [ 14.812929][ C2] mark_lock (kernel/locking/lockdep.c:4751) [ 14.812937][ C2] mark_usage (kernel/locking/lockdep.c:4640) [ 14.812942][ C2] __lock_acquire (kernel/locking/lockdep.c:5182) [ 14.812952][ C2] lock_acquire.part.0 (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853) [ 14.812957][ C2] ? __dev_queue_xmit (./include/linux/netdevice.h:4612 net/core/dev.c:4618) [ 14.812965][ C2] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [ 14.812970][ C2] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) [ 14.812977][ C2] ? lock_acquire (kernel/locking/lockdep.c:5824) [ 14.812980][ C2] ? __dev_queue_xmit (./include/linux/netdevice.h:4612 net/core/dev.c:4618) [ 14.812988][ C2] _raw_spin_lock (./include/linux/spinlock_api_smp.h:134 kernel/locking/spinlock.c:154) [ 14.812992][ C2] ? __dev_queue_xmit (./include/linux/netdevice.h:4612 net/core/dev.c:4618) [ 14.812997][ C2] __dev_queue_xmit (./include/linux/netdevice.h:4612 net/core/dev.c:4618) [ 14.813006][ C2] ? __pfx___dev_queue_xmit (net/core/dev.c:4531) [ 14.813012][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853) [ 14.813016][ C2] ? arp_xmit (./include/linux/rcupdate.h:337 ./include/linux/rcupdate.h:849 net/ipv4/arp.c:662) [ 14.813021][ C2] ? eth_header (net/ethernet/eth.c:100) [ 14.813027][ C2] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) [ 14.813032][ C2] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) [ 14.813042][ C2] arp_xmit (./include/linux/rcupdate.h:878 net/ipv4/arp.c:667) [ 14.813046][ C2] arp_process.constprop.0 (net/ipv4/arp.c:858) [ 14.813055][ C2] ? __pfx_arp_process.constprop.0 (net/ipv4/arp.c:701) [ 14.813065][ C2] ? lock_acquire.part.0 (kernel/locking/lockdep.c:469 kernel/locking/lockdep.c:5853) [ 14.813071][ C2] ? __pfx_arp_rcv (net/ipv4/arp.c:968) [ 14.813075][ C2] __netif_receive_skb_one_core (net/core/dev.c:5866 (discriminator 5)) [ 14.813081][ C2] ? __pfx___netif_receive_skb_one_core (net/core/dev.c:5859) [ 14.813086][ C2] ? lock_acquire (kernel/locking/lockdep.c:5824) [ 14.813089][ C2] ? netif_receive_skb_internal (./include/linux/rcupdate.h:337 (discriminator 16) ./include/linux/rcupdate.h:849 (discriminator 16) net/core/dev.c:6052 (discriminator 16)) [ 14.813095][ C2] netif_receive_skb_internal (net/core/dev.c:6065) [ 14.813100][ C2] ? __pfx_netif_receive_skb_internal (net/core/dev.c:6044) [ 14.813105][ C2] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4341 kernel/locking/lockdep.c:4408) [ 14.813113][ C2] netif_receive_skb (net/core/dev.c:6124) [ 14.813117][ C2] nsim_poll (drivers/net/netdevsim/netdev.c:354 drivers/net/netdevsim/netdev.c:370) netdevsim [ 14.813141][ C2] __napi_poll.constprop.0 (net/core/dev.c:7331) [ 14.813148][ C2] net_rx_action (net/core/dev.c:7400 net/core/dev.c:7522) [ 14.813156][ C2] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) [ 14.813161][ C2] ? __pfx_net_rx_action (net/core/dev.c:7484) [ 14.813166][ C2] ? clockevents_program_event (kernel/time/clockevents.c:326) [ 14.813173][ C2] ? kvm_clock_get_cycles (./arch/x86/include/asm/preempt.h:94 arch/x86/kernel/kvmclock.c:80 arch/x86/kernel/kvmclock.c:86) [ 14.813179][ C2] ? ktime_get (kernel/time/timekeeping.c:226 (discriminator 4) kernel/time/timekeeping.c:335 (discriminator 4) kernel/time/timekeeping.c:752 (discriminator 4)) [ 14.813187][ C2] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3)) [ 14.813194][ C2] ? hrtimer_interrupt (kernel/time/hrtimer.c:1940) [ 14.813202][ C2] handle_softirqs (kernel/softirq.c:561) [ 14.813211][ C2] ? __neigh_event_send (./include/linux/bottom_half.h:33 net/core/neighbour.c:1194) [ 14.813218][ C2] do_softirq (kernel/softirq.c:462 kernel/softirq.c:449) [ 14.813222][ C2] [ 14.813224][ C2] [ 14.813226][ C2] __local_bh_enable_ip (kernel/softirq.c:389) [ 14.813231][ C2] __neigh_event_send (net/core/neighbour.c:1195) [ 14.813239][ C2] neigh_resolve_output (net/core/neighbour.c:1496) [ 14.813246][ C2] ? ___neigh_create (net/core/neighbour.c:678) [ 14.813255][ C2] ip_finish_output2 (./include/net/neighbour.h:539 net/ipv4/ip_output.c:236) [ 14.813264][ C2] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:200) [ 14.813269][ C2] ? ip_fraglist_prepare (net/ipv4/ip_output.c:97 net/ipv4/ip_output.c:633) [ 14.813277][ C2] ip_do_fragment (net/ipv4/ip_output.c:853) [ 14.813281][ C2] ? __pfx_ip_finish_output2 (net/ipv4/ip_output.c:200) [ 14.813287][ C2] ? __lock_release (kernel/locking/lockdep.c:5503) [ 14.813294][ C2] ? __pfx_ip_do_fragment (net/ipv4/ip_output.c:757) [ 14.813298][ C2] ? ip_skb_dst_mtu (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/net/ip.h:505 ./include/net/ip.h:518) [ 14.813304][ C2] ? ip_skb_dst_mtu (./include/net/ip.h:523) [ 14.813310][ C2] ? __ip_finish_output (./include/linux/skbuff.h:1678 ./include/linux/skbuff.h:5078 net/ipv4/ip_output.c:308) [ 14.813316][ C2] ip_send_skb (net/ipv4/ip_output.c:1503) [ 14.813321][ C2] ? csum_partial (lib/checksum.c:122) [ 14.813328][ C2] udp_send_skb (net/ipv4/udp.c:1195) [ 14.813338][ C2] udp_sendmsg (net/ipv4/udp.c:1483) [ 14.813344][ C2] ? __pfx_ip_generic_getfrag (net/ipv4/ip_output.c:928) [ 14.813351][ C2] ? __pfx_udp_sendmsg (net/ipv4/udp.c:1271) [ 14.813358][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4323) [ 14.813365][ C2] ? find_held_lock (kernel/locking/lockdep.c:5341) [ 14.813371][ C2] ? __lock_release (kernel/locking/lockdep.c:5527) [ 14.813375][ C2] ? __unix_dgram_recvmsg (net/unix/af_unix.c:2517) [ 14.813387][ C2] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114) [ 14.813393][ C2] ? __unix_dgram_recvmsg (net/unix/af_unix.c:2517) [ 14.813398][ C2] ? 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) [ 14.813403][ C2] ? _raw_spin_unlock (./arch/x86/include/asm/preempt.h:94 ./include/linux/spinlock_api_smp.h:143 kernel/locking/spinlock.c:186) [ 14.813407][ C2] ? __unix_dgram_recvmsg (net/unix/af_unix.c:2517) [ 14.813414][ C2] sock_write_iter (net/socket.c:713 net/socket.c:728 net/socket.c:1132) [ 14.813420][ C2] ? __pfx___unix_dgram_recvmsg (net/unix/af_unix.c:2410) [ 14.813425][ C2] ? backing_file_read_iter (fs/backing-file.c:203) [ 14.813432][ C2] ? __pfx_sock_write_iter (net/socket.c:1116) [ 14.813445][ C2] vfs_write (fs/read_write.c:586 fs/read_write.c:679) [ 14.813451][ C2] ? __pfx___sys_recvfrom (net/socket.c:2209) [ 14.813459][ C2] ? __pfx_vfs_write (fs/read_write.c:660) [ 14.813466][ C2] ? __pfx_do_pselect.constprop.0 (fs/select.c:728) [ 14.813475][ C2] ? __pfx___up_read (kernel/locking/rwsem.c:1337) [ 14.813482][ C2] ksys_write (fs/read_write.c:731) [ 14.813487][ C2] ? __pfx_ksys_write (fs/read_write.c:721) [ 14.813491][ C2] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) [ 14.813501][ C2] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 14.813509][ C2] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 14.813516][ C2] RIP: 0033:0x7f4815e7db77 [ 14.813523][ C2] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 All code ======== 0: 0b 00 or (%rax),%eax 2: f7 d8 neg %eax 4: 64 89 02 mov %eax,%fs:(%rdx) 7: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax e: eb b7 jmp 0xffffffffffffffc7 10: 0f 1f 00 nopl (%rax) 13: f3 0f 1e fa endbr64 17: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax 1e: 00 1f: 85 c0 test %eax,%eax 21: 75 10 jne 0x33 23: b8 01 00 00 00 mov $0x1,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 51 ja 0x83 32: c3 ret 33: 48 83 ec 28 sub $0x28,%rsp 37: 48 89 54 24 18 mov %rdx,0x18(%rsp) 3c: 48 rex.W 3d: 89 .byte 0x89 3e: 74 24 je 0x64 Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 51 ja 0x59 8: c3 ret 9: 48 83 ec 28 sub $0x28,%rsp d: 48 89 54 24 18 mov %rdx,0x18(%rsp) 12: 48 rex.W 13: 89 .byte 0x89 14: 74 24 je 0x3a [ 14.813528][ C2] RSP: 002b:00007ffe84e4b308 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 14.813534][ C2] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4815e7db77 [ 14.813537][ C2] RDX: 00000000000005fc RSI: 00005562aee1e000 RDI: 0000000000000007 [ 14.813540][ C2] RBP: 00005562aee1e000 R08: 00000000000005fc R09: 0000000000000000 [ 14.813542][ C2] R10: 0000000000000040 R11: 0000000000000246 R12: 0000000000000007 Finger prints: mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock __local_bh_enable_ip:nsim_start_xmit:netpoll_start_xmit:__netpoll_send_skb:netpoll_send_skb __netpoll_send_skb:netpoll_send_skb:send_ext_msg_udp:write_ext_msg:console_emit_next_record warn_bogus_irq_restore:netpoll_send_skb:send_ext_msg_udp:write_ext_msg:console_emit_next_record