====================================== | [ 12.305558][ T250] softirqs last disabled at (35105): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 12.305560][ T250] Preemption disabled at: | [ 12.305561][ T250] 0x0 | [ 12.305574][ T250] Tainted: [W]=WARN [ 12.305575][ T250] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.305577][ T250] Call Trace: [ 12.305579][ T250] [ 12.305580][ T250] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.305586][ T250] __might_resched.cold (kernel/sched/core.c:9234) [ 12.305591][ T250] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.305595][ T250] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.305600][ T250] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 12.305602][ T250] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.305608][ T250] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 12.305611][ T250] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.305614][ T250] put_chars (drivers/char/virtio_console.c:1176) [ 12.305617][ T250] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.305618][ T250] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.305623][ T250] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.305628][ T250] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.305635][ T250] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.305637][ T250] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.305639][ T250] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.305643][ T250] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.305647][ T250] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.305649][ T250] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 12.305652][ T250] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.305654][ T250] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.305658][ T250] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.305662][ T250] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.305664][ T250] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.305669][ T250] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.305672][ T250] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.305674][ T250] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.305676][ T250] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 12.305679][ T250] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.305681][ T250] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.305684][ T250] vprintk_emit (kernel/printk/printk.c:2479) [ 12.305688][ T250] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.305692][ T250] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.305695][ T250] _printk (kernel/printk/printk.c:2504) [ 12.305699][ T250] ? snapshot_read.cold (user.c:?) [ 12.305701][ T250] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 12.305704][ T250] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 12.305708][ T250] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 12.305710][ T250] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 12.305714][ T250] ? exit_notify (kernel/exit.c:780) [ 12.305715][ T250] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.305718][ T250] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.305722][ T250] do_group_exit (kernel/exit.c:1151) [ 12.305725][ T250] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 12.305726][ T250] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 12.305729][ T250] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.305733][ T250] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.305736][ T250] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.305739][ T250] RIP: 0033:0x7f50869701b8 [ 12.305741][ T250] Code: Unable to access opcode bytes at 0x7f508697018e. Code starting with the faulting instruction =========================================== [ 12.305742][ T250] RSP: 002b:00007ffc54b34318 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 12.305745][ T250] RAX: ffffffffffffffda RBX: 00007f5086aa0f88 RCX: 00007f50869701b8 [ 12.305746][ T250] RDX: 00007f50866bafc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 12.305747][ T250] RBP: 00007ffc54b34370 R08: 0000000000000000 R09: 0000000000000000 [ 12.305748][ T250] R10: 00007ffc54b34130 R11: 0000000000000246 R12: 0000000000000001 [ 12.305748][ T250] R13: 0000000000000000 R14: 00007f5086a9f680 R15: 00007f5086aa0fa0 | [ 20.227383][ C0] | [ 20.227384][ C0] | [ 20.227384][ C0] stack backtrace: | [ 20.227389][ C0] Tainted: [W]=WARN [ 20.227390][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 20.227392][ C0] Call Trace: [ 20.227393][ C0] [ 20.227394][ C0] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 20.227398][ C0] print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141) [ 20.227400][ C0] mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310) [ 20.227403][ C0] mark_lock (kernel/locking/lockdep.c:4769) [ 20.227405][ C0] mark_usage (kernel/locking/lockdep.c:4658) [ 20.227406][ C0] __lock_acquire (kernel/locking/lockdep.c:5208) [ 20.227408][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 20.227410][ C0] ? console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2)) [ 20.227412][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.227416][ C0] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 20.227417][ C0] console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2)) [ 20.227419][ C0] ? console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2)) [ 20.227421][ C0] console_emit_next_record (kernel/printk/printk.c:3177) [ 20.227423][ C0] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 20.227424][ C0] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 20.227426][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.227428][ C0] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 20.227430][ C0] console_flush_one_record (kernel/printk/printk.c:3268) [ 20.227432][ C0] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 20.227434][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.227436][ C0] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 20.227438][ C0] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 20.227439][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.227441][ C0] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 20.227443][ C0] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 20.227444][ C0] ? vprintk_emit (kernel/printk/printk.c:2478) [ 20.227446][ C0] vprintk_emit (kernel/printk/printk.c:2479) [ 20.227448][ C0] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 20.227450][ C0] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 20.227452][ C0] _printk (kernel/printk/printk.c:2504) [ 20.227454][ C0] ? snapshot_read.cold (user.c:?) [ 20.227456][ C0] ? ___ratelimit (lib/ratelimit.c:97 (discriminator 3)) [ 20.227458][ C0] ? ovpn_netdev_write (./include/linux/netdevice.h:3107 (discriminator 3)) ovpn [ 20.227462][ C0] ? idr_get_free (??:?) [ 20.227464][ C0] ovpn_recv.cold (drivers/net/ovpn/io.c:225 (discriminator 4)) ovpn [ 20.227467][ C0] ovpn_tcp_rcv (drivers/net/ovpn/tcp.c:148) ovpn [ 20.227470][ C0] ? ovpn_tcp_write_space (drivers/net/ovpn/tcp.c:488 (discriminator 2)) ovpn [ 20.227472][ C0] ? __copy_skb_header (net/core/skbuff.c:1564) [ 20.227475][ C0] ? ovpn_tcp_disconnect (drivers/net/ovpn/tcp.c:467) ovpn [ 20.227477][ C0] ? sock_queue_err_skb (net/core/skbuff.c:5498 (discriminator 3)) [ 20.227479][ C0] __strp_recv (net/strparser/strparser.c:309) [ 20.227482][ C0] __tcp_read_sock (net/ipv4/tcp.c:1689) [ 20.227484][ C0] ? strp_process (net/strparser/strparser.c:335) [ 20.227486][ C0] ? __tcp_transmit_skb (net/ipv4/tcp_output.c:1716) [ 20.227487][ C0] ? tcp_cleanup_rbuf (./include/linux/skbuff.h:2196) [ 20.227489][ C0] ? mark_usage (kernel/locking/lockdep.c:4690) [ 20.227491][ C0] strp_read_sock (net/strparser/strparser.c:372) [ 20.227493][ C0] ? strp_stop (net/strparser/strparser.c:527) [ 20.227495][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.227497][ C0] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 20.227499][ C0] strp_data_ready (net/strparser/strparser.c:402 net/strparser/strparser.c:380) [ 20.227501][ C0] ovpn_tcp_data_ready (drivers/net/ovpn/tcp.c:478) ovpn [ 20.227503][ C0] tcp_rcv_established (net/ipv4/tcp_input.c:6654) [ 20.227506][ C0] ? __tcp_check_space (net/ipv4/tcp_input.c:6059 (discriminator 2)) [ 20.227508][ C0] ? tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2292 (discriminator 1)) [ 20.227509][ C0] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 20.227512][ C0] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1862) [ 20.227514][ C0] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2296) [ 20.227516][ C0] ? mark_usage (kernel/locking/lockdep.c:4690) [ 20.227518][ C0] ? tcp_add_backlog (./include/net/net_namespace.h:422 (discriminator 7)) [ 20.227520][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 20.227521][ C0] ? ip_local_deliver_finish (./include/linux/rcupdate.h:309 (discriminator 2) ./include/linux/rcupdate.h:849 (discriminator 2) net/ipv4/ip_input.c:240 (discriminator 2)) [ 20.227523][ C0] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207) [ 20.227525][ C0] ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6726 (discriminator 2)) [ 20.227527][ C0] ip_local_deliver_finish (net/ipv4/ip_input.c:241 (discriminator 1)) [ 20.227529][ C0] ip_local_deliver (./include/linux/netfilter.h:325 ./include/linux/netfilter.h:319 net/ipv4/ip_input.c:262) [ 20.227530][ C0] ? ip_local_deliver_finish (net/ipv4/ip_input.c:232 (discriminator 42)) [ 20.227532][ C0] ? ip_rcv_finish_core (./include/linux/skbuff.h:1162 (discriminator 2) ./include/net/route.h:88 (discriminator 2) net/ipv4/ip_input.c:435 (discriminator 2)) [ 20.227534][ C0] ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6726 (discriminator 2)) [ 20.227536][ C0] ip_rcv (./include/linux/netfilter.h:325 ./include/linux/netfilter.h:319 net/ipv4/ip_input.c:612) [ 20.227538][ C0] ? ip_local_deliver (./include/linux/rcupdate.h:878 (discriminator 3)) [ 20.227539][ C0] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 20.227541][ C0] ? mark_usage (kernel/locking/lockdep.c:4690) [ 20.227542][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.227544][ C0] ? trace_raw_output_rcu_invoke_kfree_bulk_callback (./include/trace/events/rcu.h:655) [ 20.227546][ C0] __netif_receive_skb_one_core (net/core/dev.c:6264) [ 20.227548][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 20.227550][ C0] ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6726 (discriminator 2)) [ 20.227551][ C0] ? __netif_receive_skb_list_core (net/core/dev.c:6310) [ 20.227553][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.227556][ C0] process_backlog (net/core/dev.c:6728) [ 20.227558][ C0] __napi_poll (net/core/dev.c:7787) [ 20.227560][ C0] net_rx_action (net/core/dev.c:7850 net/core/dev.c:8007) [ 20.227563][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.227564][ C0] ? __napi_poll (./include/net/gro.h:507) [ 20.227568][ C0] ? ktime_get_update_offsets_now (kernel/time/timekeeping.c:304 kernel/time/timekeeping.c:482 kernel/time/timekeeping.c:2859) [ 20.227573][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.227575][ C0] handle_softirqs (kernel/softirq.c:645) [ 20.227578][ C0] ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1)) [ 20.227579][ C0] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 20.227581][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.227583][ C0] do_softirq (kernel/softirq.c:546 (discriminator 19) kernel/softirq.c:533 (discriminator 19)) [ 20.227584][ C0] [ 20.227585][ C0] [ 20.227586][ C0] __local_bh_enable_ip (kernel/softirq.c:473) [ 20.227587][ C0] ovpn_tcp_sendmsg (drivers/net/ovpn/tcp.c:459) ovpn [ 20.227590][ C0] ? ovpn_tcp_recvmsg (drivers/net/ovpn/tcp.c:180 (discriminator 1)) ovpn [ 20.227594][ C0] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 20.227596][ C0] ? __ia32_sys_getpeername (net/socket.c:2235) [ 20.227599][ C0] ? fput_close_sync (fs/file_table.c:617) [ 20.227602][ C0] ? alloc_file_clone (fs/file_table.c:479) [ 20.227603][ C0] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 20.227605][ C0] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 20.227608][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 20.227609][ C0] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 20.227611][ C0] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 20.227612][ C0] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 20.227614][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 20.227615][ C0] RIP: 0033:0x7fc699f8354e [ 20.227618][ C0] Code: 4d 89 d8 e8 b4 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 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 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 03 ff ff ff call 0xffffffffffffff3c 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 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 20.227620][ C0] RSP: 002b:00007ffef44dea30 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 20.227623][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc699f8354e [ 20.227624][ C0] RDX: 00000000000003ea RSI: 00007ffef44deaa0 RDI: 0000000000000005 [ 20.227625][ C0] RBP: 00007ffef44dea40 R08: 0000000000000000 R09: 0000000000000000 [ 20.227626][ C0] R10: 0000000000004000 R11: 0000000000000202 R12: 00007ffef44df3c8 [ 20.227627][ C0] R13: 0000000000000008 R14: 00007fc69a26e000 R15: 000000000040bda8 | [ 20.227645][ C0] softirqs last disabled at (36957): do_softirq (kernel/softirq.c:546 (discriminator 19) kernel/softirq.c:533 (discriminator 19)) | [ 20.227646][ C0] Preemption disabled at: | [ 20.227647][ C0] 0x0 | [ 20.227651][ C0] Tainted: [W]=WARN [ 20.227651][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 20.227652][ C0] Call Trace: [ 20.227652][ C0] [ 20.227653][ C0] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 20.227655][ C0] __might_resched.cold (kernel/sched/core.c:9234) [ 20.227658][ C0] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 20.227661][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.227663][ C0] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 20.227665][ C0] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 20.227666][ C0] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 20.227668][ C0] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 20.227670][ C0] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 20.227672][ C0] put_chars (drivers/char/virtio_console.c:1176) [ 20.227674][ C0] ? __send_to_port (drivers/char/virtio_console.c:654) [ 20.227677][ C0] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 20.227678][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5208) [ 20.227680][ C0] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 20.227682][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.227684][ C0] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 20.227686][ C0] console_emit_next_record (kernel/printk/printk.c:3183) [ 20.227688][ C0] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 20.227689][ C0] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 20.227691][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.227693][ C0] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 20.227695][ C0] console_flush_one_record (kernel/printk/printk.c:3268) [ 20.227697][ C0] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 20.227699][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.227701][ C0] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 20.227702][ C0] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 20.227704][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.227706][ C0] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 20.227708][ C0] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 20.227709][ C0] ? vprintk_emit (kernel/printk/printk.c:2478) [ 20.227711][ C0] vprintk_emit (kernel/printk/printk.c:2479) [ 20.227713][ C0] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 20.227715][ C0] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 20.227717][ C0] _printk (kernel/printk/printk.c:2504) [ 20.227719][ C0] ? snapshot_read.cold (user.c:?) [ 20.227720][ C0] ? ___ratelimit (lib/ratelimit.c:97 (discriminator 3)) [ 20.227722][ C0] ? ovpn_netdev_write (./include/linux/netdevice.h:3107 (discriminator 3)) ovpn [ 20.227725][ C0] ? idr_get_free (??:?) [ 20.227727][ C0] ovpn_recv.cold (drivers/net/ovpn/io.c:225 (discriminator 4)) ovpn [ 20.227730][ C0] ovpn_tcp_rcv (drivers/net/ovpn/tcp.c:148) ovpn [ 20.227732][ C0] ? ovpn_tcp_write_space (drivers/net/ovpn/tcp.c:488 (discriminator 2)) ovpn [ 20.227735][ C0] ? __copy_skb_header (net/core/skbuff.c:1564) [ 20.227737][ C0] ? ovpn_tcp_disconnect (drivers/net/ovpn/tcp.c:467) ovpn [ 20.227739][ C0] ? sock_queue_err_skb (net/core/skbuff.c:5498 (discriminator 3)) [ 20.227741][ C0] __strp_recv (net/strparser/strparser.c:309) [ 20.227744][ C0] __tcp_read_sock (net/ipv4/tcp.c:1689) [ 20.227746][ C0] ? strp_process (net/strparser/strparser.c:335) [ 20.227748][ C0] ? __tcp_transmit_skb (net/ipv4/tcp_output.c:1716) [ 20.227749][ C0] ? tcp_cleanup_rbuf (./include/linux/skbuff.h:2196) [ 20.227751][ C0] ? mark_usage (kernel/locking/lockdep.c:4690) [ 20.227752][ C0] strp_read_sock (net/strparser/strparser.c:372) [ 20.227754][ C0] ? strp_stop (net/strparser/strparser.c:527) [ 20.227757][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.227758][ C0] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 20.227760][ C0] strp_data_ready (net/strparser/strparser.c:402 net/strparser/strparser.c:380) [ 20.227762][ C0] ovpn_tcp_data_ready (drivers/net/ovpn/tcp.c:478) ovpn [ 20.227765][ C0] tcp_rcv_established (net/ipv4/tcp_input.c:6654) [ 20.227767][ C0] ? __tcp_check_space (net/ipv4/tcp_input.c:6059 (discriminator 2)) [ 20.227769][ C0] ? tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2292 (discriminator 1)) [ 20.227771][ C0] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 20.227773][ C0] tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1862) [ 20.227775][ C0] tcp_v4_rcv (net/ipv4/tcp_ipv4.c:2296) [ 20.227777][ C0] ? mark_usage (kernel/locking/lockdep.c:4690) [ 20.227779][ C0] ? tcp_add_backlog (./include/net/net_namespace.h:422 (discriminator 7)) [ 20.227781][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 20.227782][ C0] ? ip_local_deliver_finish (./include/linux/rcupdate.h:309 (discriminator 2) ./include/linux/rcupdate.h:849 (discriminator 2) net/ipv4/ip_input.c:240 (discriminator 2)) [ 20.227784][ C0] ip_protocol_deliver_rcu (net/ipv4/ip_input.c:207) [ 20.227786][ C0] ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6726 (discriminator 2)) [ 20.227788][ C0] ip_local_deliver_finish (net/ipv4/ip_input.c:241 (discriminator 1)) [ 20.227790][ C0] ip_local_deliver (./include/linux/netfilter.h:325 ./include/linux/netfilter.h:319 net/ipv4/ip_input.c:262) [ 20.227791][ C0] ? ip_local_deliver_finish (net/ipv4/ip_input.c:232 (discriminator 42)) [ 20.227793][ C0] ? ip_rcv_finish_core (./include/linux/skbuff.h:1162 (discriminator 2) ./include/net/route.h:88 (discriminator 2) net/ipv4/ip_input.c:435 (discriminator 2)) [ 20.227795][ C0] ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6726 (discriminator 2)) [ 20.227797][ C0] ip_rcv (./include/linux/netfilter.h:325 ./include/linux/netfilter.h:319 net/ipv4/ip_input.c:612) [ 20.227798][ C0] ? ip_local_deliver (./include/linux/rcupdate.h:878 (discriminator 3)) [ 20.227800][ C0] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 20.227802][ C0] ? mark_usage (kernel/locking/lockdep.c:4690) [ 20.227803][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.227804][ C0] ? trace_raw_output_rcu_invoke_kfree_bulk_callback (./include/trace/events/rcu.h:655) [ 20.227806][ C0] __netif_receive_skb_one_core (net/core/dev.c:6264) [ 20.227808][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 20.227809][ C0] ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6726 (discriminator 2)) [ 20.227811][ C0] ? __netif_receive_skb_list_core (net/core/dev.c:6310) [ 20.227813][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.227816][ C0] process_backlog (net/core/dev.c:6728) [ 20.227818][ C0] __napi_poll (net/core/dev.c:7787) [ 20.227820][ C0] net_rx_action (net/core/dev.c:7850 net/core/dev.c:8007) [ 20.227823][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.227824][ C0] ? __napi_poll (./include/net/gro.h:507) [ 20.227828][ C0] ? ktime_get_update_offsets_now (kernel/time/timekeeping.c:304 kernel/time/timekeeping.c:482 kernel/time/timekeeping.c:2859) [ 20.227829][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.227831][ C0] handle_softirqs (kernel/softirq.c:645) [ 20.227833][ C0] ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1)) [ 20.227835][ C0] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 20.227836][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.227838][ C0] do_softirq (kernel/softirq.c:546 (discriminator 19) kernel/softirq.c:533 (discriminator 19)) [ 20.227840][ C0] [ 20.227840][ C0] [ 20.227841][ C0] __local_bh_enable_ip (kernel/softirq.c:473) [ 20.227842][ C0] ovpn_tcp_sendmsg (drivers/net/ovpn/tcp.c:459) ovpn [ 20.227845][ C0] ? ovpn_tcp_recvmsg (drivers/net/ovpn/tcp.c:180 (discriminator 1)) ovpn [ 20.227849][ C0] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 20.227851][ C0] ? __ia32_sys_getpeername (net/socket.c:2235) [ 20.227854][ C0] ? fput_close_sync (fs/file_table.c:617) [ 20.227856][ C0] ? alloc_file_clone (fs/file_table.c:479) [ 20.227857][ C0] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 20.227859][ C0] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 20.227860][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 20.227862][ C0] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 20.227863][ C0] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 20.227864][ C0] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 20.227866][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 20.227867][ C0] RIP: 0033:0x7fc699f8354e [ 20.227868][ C0] Code: 4d 89 d8 e8 b4 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 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 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 03 ff ff ff call 0xffffffffffffff3c 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 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 20.227870][ C0] RSP: 002b:00007ffef44dea30 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 20.227871][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc699f8354e [ 20.227872][ C0] RDX: 00000000000003ea RSI: 00007ffef44deaa0 RDI: 0000000000000005 [ 20.227872][ C0] RBP: 00007ffef44dea40 R08: 0000000000000000 R09: 0000000000000000 [ 20.227873][ C0] R10: 0000000000004000 R11: 0000000000000202 R12: 00007ffef44df3c8 [ 20.227874][ C0] R13: 0000000000000008 R14: 00007fc69a26e000 R15: 000000000040bda8 | [ 26.174641][ T479] softirqs last disabled at (0): 0x0 | [ 26.174643][ T479] Preemption disabled at: | [ 26.174643][ T479] 0x0 | [ 26.174652][ T479] Tainted: [W]=WARN [ 26.174653][ T479] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 26.174654][ T479] Call Trace: [ 26.174656][ T479] [ 26.174657][ T479] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 26.174663][ T479] __might_resched.cold (kernel/sched/core.c:9234) [ 26.174667][ T479] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 26.174671][ T479] ? prb_next_reserve_seq (kernel/printk/printk_ringbuffer.c:2128) [ 26.174674][ T479] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.174678][ T479] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 26.174681][ T479] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 26.174683][ T479] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 26.174688][ T479] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 26.174689][ T479] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 26.174691][ T479] put_chars (drivers/char/virtio_console.c:1176) [ 26.174693][ T479] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 26.174695][ T479] ? __send_to_port (drivers/char/virtio_console.c:654) [ 26.174696][ T479] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 26.174699][ T479] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 26.174703][ T479] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 26.174704][ T479] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 26.174706][ T479] ? vsnprintf (lib/vsprintf.c:2900) [ 26.174709][ T479] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 26.174710][ T479] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.174712][ T479] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.174714][ T479] console_emit_next_record (kernel/printk/printk.c:3183) [ 26.174717][ T479] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 26.174719][ T479] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.174720][ T479] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.174722][ T479] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.174723][ T479] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.174725][ T479] ? console_flush_one_record (kernel/printk/printk.c:3247) [ 26.174727][ T479] console_flush_one_record (kernel/printk/printk.c:3268) [ 26.174729][ T479] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 26.174732][ T479] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 26.174733][ T479] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.174735][ T479] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 26.174737][ T479] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.174738][ T479] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 26.174740][ T479] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 26.174741][ T479] ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6)) [ 26.174743][ T479] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 26.174745][ T479] ? vprintk_emit (kernel/printk/printk.c:2478) [ 26.174747][ T479] vprintk_emit (kernel/printk/printk.c:2479) [ 26.174749][ T479] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 26.174752][ T479] _printk (kernel/printk/printk.c:2504) [ 26.174755][ T479] ? snapshot_read.cold (user.c:?) [ 26.174756][ T479] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 26.174759][ T479] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 26.174761][ T479] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 26.174763][ T479] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 26.174764][ T479] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 26.174767][ T479] ? exit_notify (kernel/exit.c:780) [ 26.174770][ T479] __x64_sys_exit (kernel/exit.c:1118 kernel/exit.c:1116 kernel/exit.c:1116) [ 26.174772][ T479] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:61) [ 26.174774][ T479] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 26.174777][ T479] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 26.174779][ T479] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 26.174781][ T479] RIP: 0033:0x7faa5b278c49 [ 26.174783][ T479] Code: Unable to access opcode bytes at 0x7faa5b278c1f. Code starting with the faulting instruction =========================================== [ 26.174784][ T479] RSP: 002b:00007faa5aa37e60 EFLAGS: 00000246 ORIG_RAX: 000000000000003c [ 26.174787][ T479] RAX: ffffffffffffffda RBX: 00007faa5aa386c0 RCX: 00007faa5b278c49 [ 26.174789][ T479] RDX: 0000000000000000 RSI: 0000000000801000 RDI: 0000000000000000 [ 26.174789][ T479] RBP: 00007faa5aa37f70 R08: 0000000000000001 R09: 00007faa5aa386c0 [ 26.174790][ T479] R10: 0000000000000008 R11: 0000000000000246 R12: 00007faa5a238000 Finger prints: mark_lock_irq:mark_lock:mark_usage:__lock_acquire:console_lock_spinning_enable __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print __kmalloc_noprof:put_chars:hvc_console_print:console_emit_next_record:console_flush_one_record do_softirq:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print