====================================== | # 88.07 [+0.00] [ 22.626572] 1 lock held by mausezahn/350: | # 88.07 [+0.00] [ 22.626736] #0: ffffffff96f5b5c0 (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:4555) | # 88.07 [+0.00] [ 22.627037] | # 88.07 [+0.00] stack backtrace: # 88.07 [+0.00] [ 22.627275] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 # 88.08 [+0.00] [ 22.627277] Call Trace: # 88.08 [+0.00] [ 22.627280] # 88.08 [+0.00] [ 22.627282] dump_stack_lvl (lib/dump_stack.c:123) # 88.08 [+0.00] [ 22.627291] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6848) # 88.08 [+0.00] [ 22.627303] dev_hard_start_xmit (./include/net/net_namespace.h:418 ./include/linux/netdevice.h:2695 net/core/dev.c:2466 net/core/dev.c:3772 net/core/dev.c:3793) # 88.08 [+0.00] [ 22.627313] __dev_queue_xmit (net/core/dev.h:340 net/core/dev.c:4631) # 88.08 [+0.00] [ 22.627327] ? __pfx___dev_queue_xmit (net/core/dev.c:4538) # 88.08 [+0.00] [ 22.627332] ? packet_parse_headers (./include/linux/skbuff.h:3108 net/packet/af_packet.c:1992) # 88.08 [+0.00] [ 22.627341] ? __pfx_sock_alloc_send_pskb (net/core/sock.c:2922) # 88.08 [+0.00] [ 22.627347] ? __pfx_packet_parse_headers (net/packet/af_packet.c:1977) # 88.09 [+0.00] [ 22.627352] ? skb_copy_datagram_from_iter (net/core/datagram.c:564) # 88.09 [+0.00] [ 22.627358] ? dev_get_by_index (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/dev.c:982) # 88.09 [+0.00] [ 22.627370] packet_snd (net/packet/af_packet.c:3131) # 88.09 [+0.00] [ 22.627382] ? __lock_release (kernel/locking/lockdep.c:5527) # 88.09 [+0.00] [ 22.627385] ? __might_fault (mm/memory.c:6858 mm/memory.c:6851) # 88.09 [+0.00] [ 22.627394] ? __pfx_packet_snd (net/packet/af_packet.c:2995) # 88.09 [+0.00] [ 22.627396] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) # 88.09 [+0.00] [ 22.627398] ? __might_fault (mm/memory.c:6858 mm/memory.c:6851) # 88.09 [+0.00] [ 22.627405] ? lock_acquire (kernel/locking/lockdep.c:5824) # 88.10 [+0.00] [ 22.627412] ? __might_fault (mm/memory.c:6858 mm/memory.c:6851) # 88.10 [+0.00] [ 22.627423] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2177) # 88.10 [+0.00] [ 22.627429] ? __pfx___sys_sendto (net/socket.c:2144) # 88.10 [+0.00] [ 22.627444] ? sock_ioctl (net/socket.c:1311) # 88.10 [+0.00] [ 22.627454] ? __pfx___up_read (kernel/locking/rwsem.c:1337) # 88.10 [+0.00] [ 22.627463] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) # 88.10 [+0.00] [ 22.627474] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) # 88.10 [+0.00] [ 22.627481] __x64_sys_sendto (net/socket.c:2180) # 88.10 [+0.00] [ 22.627485] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) # 88.11 [+0.01] [ 22.627491] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) # 88.11 [+0.00] [ 22.627500] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) # 88.12 [+0.00] [ 22.627506] RIP: 0033:0x7f7eb70c8a4a # 88.12 [+0.00] [ 22.627511] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89 All code ======== 0: d8 64 89 02 fsubs 0x2(%rcx,%rcx,4) 4: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax b: eb b8 jmp 0xffffffffffffffc5 d: 0f 1f 00 nopl (%rax) 10: f3 0f 1e fa endbr64 14: 41 89 ca mov %ecx,%r10d 17: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax 1e: 00 1f: 85 c0 test %eax,%eax 21: 75 15 jne 0x38 23: b8 2c 00 00 00 mov $0x2c,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 7e ja 0xb0 32: c3 ret 33: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 38: 41 54 push %r12 3a: 48 83 ec 30 sub $0x30,%rsp 3e: 44 rex.R 3f: 89 .byte 0x89 Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 7e ja 0x86 8: c3 ret 9: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) e: 41 54 push %r12 10: 48 83 ec 30 sub $0x30,%rsp 14: 44 rex.R 15: 89 .byte 0x89 # 88.12 [+0.01] [ 22.627514] RSP: 002b:00007ffdee2977f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c # 88.12 [+0.00] [ 22.627518] RAX: ffffffffffffffda RBX: 000000001dafc9d0 RCX: 00007f7eb70c8a4a # 88.13 [+0.00] [ 22.627521] RDX: 0000000000000062 RSI: 000000001dafc5c2 RDI: 0000000000000005 # 88.13 [+0.00] [ 22.627523] RBP: 000000001dafc5c2 R08: 00007ffdee297800 R09: 0000000000000014 # 88.13 [+0.00] [ 22.627525] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 # 88.13 [+0.00] [ 22.627526] R13: 0000000000000062 R14: 00007ffdee297800 R15: 0000000000000000 | # 88.13 [+0.00] [ 22.627526] R13: 0000000000000062 R14: 00007ffdee297800 R15: 0000000000000000 | # 88.13 [+0.00] [ 22.627542] | # 88.13 [+0.00] [ 26.533950] Mirror/redirect action on | # 88.13 [+0.00] [ 85.934571] irq 51: nobody cared (try booting with the "irqpoll" option) # 88.14 [+0.00] [ 85.934972] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 # 88.14 [+0.00] [ 85.934974] Call Trace: # 88.14 [+0.00] [ 85.934976] # 88.14 [+0.00] [ 85.934979] dump_stack_lvl (lib/dump_stack.c:123) # 88.14 [+0.00] [ 85.934990] __report_bad_irq (kernel/irq/spurious.c:214) # 88.14 [+0.00] [ 85.934999] note_interrupt (kernel/irq/spurious.c:423) # 88.15 [+0.00] [ 85.935007] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) # 88.15 [+0.00] [ 85.935013] handle_edge_irq (kernel/irq/chip.c:833) # 88.15 [+0.00] [ 85.935024] __common_interrupt (./include/linux/irqdesc.h:173 arch/x86/kernel/irq.c:249 arch/x86/kernel/irq.c:261 arch/x86/kernel/irq.c:287) # 88.15 [+0.00] [ 85.935031] common_interrupt (arch/x86/kernel/irq.c:280 (discriminator 14)) # 88.15 [+0.00] [ 85.935040] # 88.15 [+0.00] [ 85.935041] # 88.15 [+0.00] [ 85.935044] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) # 88.15 [+0.00] [ 85.935050] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) # 88.15 [+0.00] [ 85.935055] Code: 10 e8 b1 3d 87 fd 48 89 ef e8 f9 ad 87 fd 81 e3 00 02 00 00 75 1d 9c 58 f6 c4 02 75 29 48 85 db 74 01 fb 65 ff 0d b5 0d 0f 6a <74> 0e 5b 5d c3 cc cc cc cc e8 2f df ac fd eb dc 0f 1f 44 00 00 5b All code ======== 0: 10 e8 adc %ch,%al 2: b1 3d mov $0x3d,%cl 4: 87 fd xchg %edi,%ebp 6: 48 89 ef mov %rbp,%rdi 9: e8 f9 ad 87 fd call 0xfffffffffd87ae07 e: 81 e3 00 02 00 00 and $0x200,%ebx 14: 75 1d jne 0x33 16: 9c pushf 17: 58 pop %rax 18: f6 c4 02 test $0x2,%ah 1b: 75 29 jne 0x46 1d: 48 85 db test %rbx,%rbx 20: 74 01 je 0x23 22: fb sti 23: 65 ff 0d b5 0d 0f 6a decl %gs:0x6a0f0db5(%rip) # 0x6a0f0ddf 2a:* 74 0e je 0x3a <-- trapping instruction 2c: 5b pop %rbx 2d: 5d pop %rbp 2e: c3 ret 2f: cc int3 30: cc int3 31: cc int3 32: cc int3 33: e8 2f df ac fd call 0xfffffffffdacdf67 38: eb dc jmp 0x16 3a: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 3f: 5b pop %rbx Code starting with the faulting instruction =========================================== 0: 74 0e je 0x10 2: 5b pop %rbx 3: 5d pop %rbp 4: c3 ret 5: cc int3 6: cc int3 7: cc int3 8: cc int3 9: e8 2f df ac fd call 0xfffffffffdacdf3d e: eb dc jmp 0xffffffffffffffec 10: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 15: 5b pop %rbx # 88.16 [+0.00] [ 85.935058] RSP: 0018:ffffc90000b27aa0 EFLAGS: 00000286 # 88.16 [+0.00] [ 85.935062] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff320a612 # 88.16 [+0.00] [ 85.935065] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff95f4b761 # 88.16 [+0.00] [ 85.935067] RBP: ffffffff99919b60 R08: 0000000000000001 R09: fffffbfff3205beb # 88.17 [+0.00] [ 85.935069] R10: ffffffff9902df5f R11: ffff88800a298040 R12: 00000000ffffffff # 88.17 [+0.00] [ 85.935071] R13: 0000000000000001 R14: ffffffff99919c68 R15: 00000000ffffffff # 88.17 [+0.00] [ 85.935082] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) # 88.17 [+0.00] [ 85.935090] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636) # 88.17 [+0.00] [ 85.935101] process_output_block (drivers/tty/n_tty.c:574) # 88.17 [+0.00] [ 85.935107] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) # 88.17 [+0.00] [ 85.935118] n_tty_write (drivers/tty/n_tty.c:2390) # 88.18 [+0.00] [ 85.935129] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2360) # 88.18 [+0.00] [ 85.935133] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) # 88.18 [+0.00] [ 85.935137] ? __pfx_woken_wake_function (kernel/sched/wait.c:439) # 88.18 [+0.00] [ 85.935144] ? lock_acquire (kernel/locking/lockdep.c:5824) # 88.18 [+0.00] [ 85.935147] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967) # 88.18 [+0.00] [ 85.935158] iterate_tty_write (drivers/tty/tty_io.c:1015) # 88.18 [+0.00] [ 85.935165] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244) # 88.19 [+0.00] [ 85.935173] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1090) # 88.19 [+0.01] [ 85.935181] vfs_write (fs/read_write.c:586 fs/read_write.c:679) # 88.19 [+0.00] [ 85.935190] ? __pfx_vfs_write (fs/read_write.c:660) # 88.19 [+0.00] [ 85.935204] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) # 88.19 [+0.00] [ 85.935215] ksys_write (fs/read_write.c:731) # 88.19 [+0.00] [ 85.935220] ? __pfx_ksys_write (fs/read_write.c:721) # 88.20 [+0.00] [ 85.935232] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) # 88.20 [+0.00] [ 85.935238] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) # 88.20 [+0.00] [ 85.935241] RIP: 0033:0x7f49d3345b77 # 88.20 [+0.00] [ 85.935245] 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 # 88.20 [+0.00] [ 85.935248] RSP: 002b:00007ffc90ae50d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 # 88.21 [+0.00] [ 85.935250] RAX: ffffffffffffffda RBX: 00005641639572b0 RCX: 00007f49d3345b77 # 88.21 [+0.00] [ 85.935252] RDX: 0000000000000001 RSI: 00005641639572b0 RDI: 0000000000000001 # 88.21 [+0.00] [ 85.935254] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 # 88.21 [+0.00] [ 85.935255] R10: 0000000000000001 R11: 0000000000000246 R12: 00005641639425e0 # 88.21 [+0.00] [ 85.935257] R13: 00005641639232a0 R14: 0000000000000001 R15: 00005641639425e0 | [ 22.626572][ T350] 1 lock held by mausezahn/350: | [ 22.626736][ T350] #0: ffffffff96f5b5c0 (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:4555) | [ 22.627037][ T350] | [ 22.627037][ T350] stack backtrace: [ 22.627275][ T350] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 22.627277][ T350] Call Trace: [ 22.627280][ T350] [ 22.627282][ T350] dump_stack_lvl (lib/dump_stack.c:123) [ 22.627291][ T350] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6848) [ 22.627303][ T350] dev_hard_start_xmit (./include/net/net_namespace.h:418 ./include/linux/netdevice.h:2695 net/core/dev.c:2466 net/core/dev.c:3772 net/core/dev.c:3793) [ 22.627313][ T350] __dev_queue_xmit (net/core/dev.h:340 net/core/dev.c:4631) [ 22.627327][ T350] ? __pfx___dev_queue_xmit (net/core/dev.c:4538) [ 22.627332][ T350] ? packet_parse_headers (./include/linux/skbuff.h:3108 net/packet/af_packet.c:1992) [ 22.627341][ T350] ? __pfx_sock_alloc_send_pskb (net/core/sock.c:2922) [ 22.627347][ T350] ? __pfx_packet_parse_headers (net/packet/af_packet.c:1977) [ 22.627352][ T350] ? skb_copy_datagram_from_iter (net/core/datagram.c:564) [ 22.627358][ T350] ? dev_get_by_index (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/core/dev.c:982) [ 22.627370][ T350] packet_snd (net/packet/af_packet.c:3131) [ 22.627382][ T350] ? __lock_release (kernel/locking/lockdep.c:5527) [ 22.627385][ T350] ? __might_fault (mm/memory.c:6858 mm/memory.c:6851) [ 22.627394][ T350] ? __pfx_packet_snd (net/packet/af_packet.c:2995) [ 22.627396][ T350] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) [ 22.627398][ T350] ? __might_fault (mm/memory.c:6858 mm/memory.c:6851) [ 22.627405][ T350] ? lock_acquire (kernel/locking/lockdep.c:5824) [ 22.627412][ T350] ? __might_fault (mm/memory.c:6858 mm/memory.c:6851) [ 22.627423][ T350] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2177) [ 22.627429][ T350] ? __pfx___sys_sendto (net/socket.c:2144) [ 22.627444][ T350] ? sock_ioctl (net/socket.c:1311) [ 22.627454][ T350] ? __pfx___up_read (kernel/locking/rwsem.c:1337) [ 22.627463][ T350] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) [ 22.627474][ T350] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) [ 22.627481][ T350] __x64_sys_sendto (net/socket.c:2180) [ 22.627485][ T350] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) [ 22.627491][ T350] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 22.627500][ T350] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 22.627506][ T350] RIP: 0033:0x7f7eb70c8a4a [ 22.627511][ T350] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89 All code ======== 0: d8 64 89 02 fsubs 0x2(%rcx,%rcx,4) 4: 48 c7 c0 ff ff ff ff mov $0xffffffffffffffff,%rax b: eb b8 jmp 0xffffffffffffffc5 d: 0f 1f 00 nopl (%rax) 10: f3 0f 1e fa endbr64 14: 41 89 ca mov %ecx,%r10d 17: 64 8b 04 25 18 00 00 mov %fs:0x18,%eax 1e: 00 1f: 85 c0 test %eax,%eax 21: 75 15 jne 0x38 23: b8 2c 00 00 00 mov $0x2c,%eax 28: 0f 05 syscall 2a:* 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax <-- trapping instruction 30: 77 7e ja 0xb0 32: c3 ret 33: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 38: 41 54 push %r12 3a: 48 83 ec 30 sub $0x30,%rsp 3e: 44 rex.R 3f: 89 .byte 0x89 Code starting with the faulting instruction =========================================== 0: 48 3d 00 f0 ff ff cmp $0xfffffffffffff000,%rax 6: 77 7e ja 0x86 8: c3 ret 9: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) e: 41 54 push %r12 10: 48 83 ec 30 sub $0x30,%rsp 14: 44 rex.R 15: 89 .byte 0x89 [ 22.627514][ T350] RSP: 002b:00007ffdee2977f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 22.627518][ T350] RAX: ffffffffffffffda RBX: 000000001dafc9d0 RCX: 00007f7eb70c8a4a [ 22.627521][ T350] RDX: 0000000000000062 RSI: 000000001dafc5c2 RDI: 0000000000000005 [ 22.627523][ T350] RBP: 000000001dafc5c2 R08: 00007ffdee297800 R09: 0000000000000014 [ 22.627525][ T350] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 22.627526][ T350] R13: 0000000000000062 R14: 00007ffdee297800 R15: 0000000000000000 | [ 22.627526][ T350] R13: 0000000000000062 R14: 00007ffdee297800 R15: 0000000000000000 | [ 22.627542][ T350] | [ 26.533950][ T439] Mirror/redirect action on | [ 85.934571][ C0] irq 51: nobody cared (try booting with the "irqpoll" option) [ 85.934972][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 85.934974][ C0] Call Trace: [ 85.934976][ C0] [ 85.934979][ C0] dump_stack_lvl (lib/dump_stack.c:123) [ 85.934990][ C0] __report_bad_irq (kernel/irq/spurious.c:214) [ 85.934999][ C0] note_interrupt (kernel/irq/spurious.c:423) [ 85.935007][ C0] handle_irq_event (kernel/irq/handle.c:198 kernel/irq/handle.c:210) [ 85.935013][ C0] handle_edge_irq (kernel/irq/chip.c:833) [ 85.935024][ C0] __common_interrupt (./include/linux/irqdesc.h:173 arch/x86/kernel/irq.c:249 arch/x86/kernel/irq.c:261 arch/x86/kernel/irq.c:287) [ 85.935031][ C0] common_interrupt (arch/x86/kernel/irq.c:280 (discriminator 14)) [ 85.935040][ C0] [ 85.935041][ C0] [ 85.935044][ C0] asm_common_interrupt (./arch/x86/include/asm/idtentry.h:693) [ 85.935050][ C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) [ 85.935055][ C0] Code: 10 e8 b1 3d 87 fd 48 89 ef e8 f9 ad 87 fd 81 e3 00 02 00 00 75 1d 9c 58 f6 c4 02 75 29 48 85 db 74 01 fb 65 ff 0d b5 0d 0f 6a <74> 0e 5b 5d c3 cc cc cc cc e8 2f df ac fd eb dc 0f 1f 44 00 00 5b All code ======== 0: 10 e8 adc %ch,%al 2: b1 3d mov $0x3d,%cl 4: 87 fd xchg %edi,%ebp 6: 48 89 ef mov %rbp,%rdi 9: e8 f9 ad 87 fd call 0xfffffffffd87ae07 e: 81 e3 00 02 00 00 and $0x200,%ebx 14: 75 1d jne 0x33 16: 9c pushf 17: 58 pop %rax 18: f6 c4 02 test $0x2,%ah 1b: 75 29 jne 0x46 1d: 48 85 db test %rbx,%rbx 20: 74 01 je 0x23 22: fb sti 23: 65 ff 0d b5 0d 0f 6a decl %gs:0x6a0f0db5(%rip) # 0x6a0f0ddf 2a:* 74 0e je 0x3a <-- trapping instruction 2c: 5b pop %rbx 2d: 5d pop %rbp 2e: c3 ret 2f: cc int3 30: cc int3 31: cc int3 32: cc int3 33: e8 2f df ac fd call 0xfffffffffdacdf67 38: eb dc jmp 0x16 3a: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 3f: 5b pop %rbx Code starting with the faulting instruction =========================================== 0: 74 0e je 0x10 2: 5b pop %rbx 3: 5d pop %rbp 4: c3 ret 5: cc int3 6: cc int3 7: cc int3 8: cc int3 9: e8 2f df ac fd call 0xfffffffffdacdf3d e: eb dc jmp 0xffffffffffffffec 10: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 15: 5b pop %rbx [ 85.935058][ C0] RSP: 0018:ffffc90000b27aa0 EFLAGS: 00000286 [ 85.935062][ C0] RAX: 0000000000000006 RBX: 0000000000000200 RCX: 1ffffffff320a612 [ 85.935065][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff95f4b761 [ 85.935067][ C0] RBP: ffffffff99919b60 R08: 0000000000000001 R09: fffffbfff3205beb [ 85.935069][ C0] R10: ffffffff9902df5f R11: ffff88800a298040 R12: 00000000ffffffff [ 85.935071][ C0] R13: 0000000000000001 R14: ffffffff99919c68 R15: 00000000ffffffff [ 85.935082][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) [ 85.935090][ C0] uart_write (drivers/tty/serial/serial_core.c:74 drivers/tty/serial/serial_core.c:636) [ 85.935101][ C0] process_output_block (drivers/tty/n_tty.c:574) [ 85.935107][ C0] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) [ 85.935118][ C0] n_tty_write (drivers/tty/n_tty.c:2390) [ 85.935129][ C0] ? __pfx_n_tty_write (drivers/tty/n_tty.c:2360) [ 85.935133][ C0] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) [ 85.935137][ C0] ? __pfx_woken_wake_function (kernel/sched/wait.c:439) [ 85.935144][ C0] ? lock_acquire (kernel/locking/lockdep.c:5824) [ 85.935147][ C0] ? iterate_tty_write (drivers/tty/tty_io.c:948 drivers/tty/tty_io.c:967) [ 85.935158][ C0] iterate_tty_write (drivers/tty/tty_io.c:1015) [ 85.935165][ C0] ? tty_ldisc_ref_wait (drivers/tty/tty_ldisc.c:244) [ 85.935173][ C0] file_tty_write.constprop.0 (drivers/tty/tty_io.c:1090) [ 85.935181][ C0] vfs_write (fs/read_write.c:586 fs/read_write.c:679) [ 85.935190][ C0] ? __pfx_vfs_write (fs/read_write.c:660) [ 85.935204][ C0] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) [ 85.935215][ C0] ksys_write (fs/read_write.c:731) [ 85.935220][ C0] ? __pfx_ksys_write (fs/read_write.c:721) [ 85.935232][ C0] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) [ 85.935238][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) [ 85.935241][ C0] RIP: 0033:0x7f49d3345b77 [ 85.935245][ C0] 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 [ 85.935248][ C0] RSP: 002b:00007ffc90ae50d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 85.935250][ C0] RAX: ffffffffffffffda RBX: 00005641639572b0 RCX: 00007f49d3345b77 [ 85.935252][ C0] RDX: 0000000000000001 RSI: 00005641639572b0 RDI: 0000000000000001 [ 85.935254][ C0] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 85.935255][ C0] R10: 0000000000000001 R11: 0000000000000246 R12: 00005641639425e0 Finger prints: __report_bad_irq:note_interrupt:handle_irq_event:handle_edge_irq:__common_interrupt lockdep_rcu_suspicious:dev_hard_start_xmit:__dev_queue_xmit:packet_snd:__sys_sendto