====================================== | [ 11.283805][ T205] softirqs last disabled at (26259): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 11.283808][ T205] Preemption disabled at: | [ 11.283808][ T205] 0x0 | [ 11.283819][ T205] Tainted: [W]=WARN [ 11.283820][ T205] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.283822][ T205] Call Trace: [ 11.283823][ T205] [ 11.283824][ T205] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.283831][ T205] __might_resched.cold (kernel/sched/core.c:9234) [ 11.283836][ T205] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.283840][ T205] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.283844][ T205] __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)) [ 11.283846][ T205] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.283853][ T205] ? 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) [ 11.283856][ T205] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.283860][ T205] put_chars (drivers/char/virtio_console.c:1176) [ 11.283863][ T205] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.283864][ T205] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.283867][ T205] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.283873][ T205] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.283881][ T205] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.283883][ T205] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.283885][ T205] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.283889][ T205] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.283893][ T205] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.283895][ T205] ? 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)) [ 11.283899][ T205] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.283900][ T205] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.283904][ T205] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.283909][ T205] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.283911][ T205] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.283916][ T205] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.283919][ T205] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.283921][ T205] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.283922][ T205] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 11.283926][ T205] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.283928][ T205] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.283931][ T205] vprintk_emit (kernel/printk/printk.c:2479) [ 11.283934][ T205] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.283937][ T205] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.283940][ T205] _printk (kernel/printk/printk.c:2504) [ 11.283944][ T205] ? snapshot_read.cold (user.c:?) [ 11.283947][ T205] ? 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) [ 11.283950][ T205] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 11.283954][ T205] ? 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) [ 11.283957][ T205] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 11.283960][ T205] ? exit_notify (kernel/exit.c:780) [ 11.283962][ T205] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.283965][ T205] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.283968][ T205] do_group_exit (kernel/exit.c:1151) [ 11.283971][ T205] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 11.283973][ T205] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 11.283975][ T205] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.283979][ T205] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.283982][ T205] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.283985][ T205] RIP: 0033:0x7f32eb5711b8 [ 11.283987][ T205] Code: Unable to access opcode bytes at 0x7f32eb57118e. Code starting with the faulting instruction =========================================== [ 11.283988][ T205] RSP: 002b:00007ffd6fdd14c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.283990][ T205] RAX: ffffffffffffffda RBX: 00007f32eb6a1f88 RCX: 00007f32eb5711b8 [ 11.283992][ T205] RDX: 00007f32eb2bbfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 11.283993][ T205] RBP: 00007ffd6fdd1520 R08: 0000000000000000 R09: 0000000000000050 [ 11.283994][ T205] R10: 00007ffd6fdd12e0 R11: 0000000000000246 R12: 0000000000000001 [ 11.283994][ T205] R13: 0000000000000000 R14: 00007f32eb6a0680 R15: 00007f32eb6a1fa0 | [ 17.889479][ C3] | [ 17.889479][ C3] | [ 17.889479][ C3] stack backtrace: | [ 17.889485][ C3] Tainted: [W]=WARN [ 17.889486][ C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.889488][ C3] Call Trace: [ 17.889489][ C3] [ 17.889490][ C3] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 17.889494][ C3] print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141) [ 17.889497][ C3] mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310) [ 17.889499][ C3] mark_lock (kernel/locking/lockdep.c:4769) [ 17.889501][ C3] mark_usage (kernel/locking/lockdep.c:4658) [ 17.889503][ C3] __lock_acquire (kernel/locking/lockdep.c:5208) [ 17.889505][ C3] lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.889507][ C3] ? console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2)) [ 17.889509][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.889511][ C3] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.889513][ C3] console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2)) [ 17.889515][ C3] ? console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2)) [ 17.889517][ C3] console_emit_next_record (kernel/printk/printk.c:3177) [ 17.889519][ C3] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 17.889521][ C3] ? 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)) [ 17.889523][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.889524][ C3] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.889526][ C3] console_flush_one_record (kernel/printk/printk.c:3268) [ 17.889528][ C3] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 17.889530][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.889532][ C3] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 17.889534][ C3] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 17.889535][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.889536][ C3] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 17.889538][ C3] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 17.889541][ C3] ? vprintk_emit (kernel/printk/printk.c:2478) [ 17.889542][ C3] vprintk_emit (kernel/printk/printk.c:2479) [ 17.889543][ C3] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 17.889544][ C3] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 17.889547][ C3] _printk (kernel/printk/printk.c:2504) [ 17.889548][ C3] ? snapshot_read.cold (user.c:?) [ 17.889550][ C3] ? ___ratelimit (lib/ratelimit.c:97 (discriminator 3)) [ 17.889553][ C3] ? idr_get_free (??:?) [ 17.889555][ C3] ip_frag_reasm.constprop.0.cold (net/ipv4/ip_fragment.c:463 (discriminator 3)) [ 17.889557][ C3] ip_frag_queue (net/ipv4/ip_fragment.c:364) [ 17.889559][ C3] ip_defrag (net/ipv4/ip_fragment.c:488) [ 17.889561][ C3] ? ip4_obj_hashfn (./include/linux/jhash.h:126 (discriminator 32768)) [ 17.889562][ C3] ? ip_route_input_noref (./include/linux/rcupdate.h:882 net/ipv4/route.c:2584) [ 17.889564][ C3] ? ip_route_input_slow (./include/linux/inetdevice.h:64 (discriminator 4)) [ 17.889566][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 17.889568][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.889570][ C3] ip_local_deliver (net/ipv4/ip_input.c:258) [ 17.889571][ C3] ? ip_local_deliver_finish (net/ipv4/ip_input.c:232 (discriminator 42)) [ 17.889573][ C3] ? 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)) [ 17.889574][ C3] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 17.889578][ C3] ip_rcv (./include/linux/netfilter.h:325 ./include/linux/netfilter.h:319 net/ipv4/ip_input.c:612) [ 17.889579][ C3] ? ip_local_deliver (./include/linux/rcupdate.h:878 (discriminator 3)) [ 17.889580][ C3] ? check_path.constprop.0 (kernel/locking/lockdep.c:1864 kernel/locking/lockdep.c:2147) [ 17.889582][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.889584][ C3] __netif_receive_skb_core.constprop.0 (net/core/dev.c:2533 net/core/dev.c:6221) [ 17.889586][ C3] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 17.889588][ C3] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 17.889590][ C3] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 17.889592][ C3] ? mark_usage (kernel/locking/lockdep.c:4690) [ 17.889594][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.889596][ C3] ? do_xdp_generic (net/core/dev.c:5732) [ 17.889597][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.889599][ C3] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 17.889601][ C3] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 17.889602][ C3] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 17.889604][ C3] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 17.889605][ C3] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 17.889607][ C3] ? sock_def_readable (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/core/sock.c:3663 (discriminator 2)) [ 17.889608][ C3] ? mark_usage (kernel/locking/lockdep.c:4690) [ 17.889610][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.889612][ C3] ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6726 (discriminator 2)) [ 17.889614][ C3] __netif_receive_skb_one_core (net/core/dev.c:6262) [ 17.889615][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.889617][ C3] ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6726 (discriminator 2)) [ 17.889619][ C3] ? __netif_receive_skb_list_core (net/core/dev.c:6310) [ 17.889620][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.889622][ C3] process_backlog (net/core/dev.c:6728) [ 17.889625][ C3] __napi_poll (net/core/dev.c:7787) [ 17.889627][ C3] net_rx_action (net/core/dev.c:7850 net/core/dev.c:8007) [ 17.889629][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.889631][ C3] ? __napi_poll (./include/net/gro.h:507) [ 17.889634][ C3] ? ktime_get_update_offsets_now (kernel/time/timekeeping.c:304 kernel/time/timekeeping.c:482 kernel/time/timekeeping.c:2859) [ 17.889637][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.889639][ C3] handle_softirqs (kernel/softirq.c:645) [ 17.889641][ C3] ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1)) [ 17.889642][ C3] ? 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) [ 17.889644][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.889645][ C3] ? __dev_queue_xmit (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:920 (discriminator 2) net/core/dev.c:4961 (discriminator 2)) [ 17.889647][ C3] do_softirq (kernel/softirq.c:546 (discriminator 19) kernel/softirq.c:533 (discriminator 19)) [ 17.889649][ C3] [ 17.889649][ C3] [ 17.889650][ C3] __local_bh_enable_ip (kernel/softirq.c:473) [ 17.889652][ C3] __dev_queue_xmit (./include/linux/bottom_half.h:33 (discriminator 2) ./include/linux/rcupdate.h:923 (discriminator 2) net/core/dev.c:4961 (discriminator 2)) [ 17.889653][ C3] ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272) [ 17.889656][ C3] ? _copy_from_iter_flushcache (./include/linux/iov_iter.h:112) [ 17.889658][ C3] ? _copy_from_iter_flushcache (./include/linux/iov_iter.h:112) [ 17.889660][ C3] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 17.889662][ C3] ? netdev_core_pick_tx (net/core/dev.c:4784) [ 17.889664][ C3] ? __virtio_net_hdr_to_skb.constprop.0 (./include/linux/virtio_net.h:105) [ 17.889666][ C3] ? alloc_pg_vec.isra.0 (net/packet/af_packet.c:4493 (discriminator 10)) [ 17.889667][ C3] ? packet_rcv_spkt (./include/net/dst.h:285) [ 17.889669][ C3] packet_snd (net/packet/af_packet.c:3110) [ 17.889672][ C3] ? kasan_addr_to_slab (./include/linux/page-flags.h:250 mm/kasan/../slab.h:176 mm/kasan/../slab.h:210 mm/kasan/common.c:48) [ 17.889674][ C3] ? tpacket_snd (net/packet/af_packet.c:2786 (discriminator 1)) [ 17.889675][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.889677][ C3] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 17.889678][ C3] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 17.889679][ C3] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 17.889682][ C3] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 17.889683][ C3] ? fdget (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:49 fs/file.c:1194 fs/file.c:1208) [ 17.889686][ C3] __sys_sendto (net/socket.c:2281) [ 17.889688][ C3] ? __ia32_sys_getpeername (net/socket.c:2235) [ 17.889691][ C3] ? fput_close_sync (fs/file_table.c:617) [ 17.889694][ C3] ? alloc_file_clone (fs/file_table.c:479) [ 17.889696][ C3] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 17.889698][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 17.889700][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 17.889702][ C3] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 17.889704][ C3] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 17.889705][ C3] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 17.889707][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 17.889708][ C3] RIP: 0033:0x7fbcb916454e [ 17.889711][ C3] 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 [ 17.889717][ C3] RSP: 002b:00007ffce901f710 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 17.889720][ C3] RAX: ffffffffffffffda RBX: 0000000000010018 RCX: 00007fbcb916454e [ 17.889721][ C3] RDX: 0000000000010018 RSI: 0000000000415120 RDI: 0000000000000007 [ 17.889722][ C3] RBP: 00007ffce901f720 R08: 00007ffce901f780 R09: 0000000000000014 [ 17.889723][ C3] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000007 [ 17.889724][ C3] R13: 0000000000000006 R14: 00007fbcb9335000 R15: 0000000000404e00 | [ 17.889741][ C3] softirqs last disabled at (30539): do_softirq (kernel/softirq.c:546 (discriminator 19) kernel/softirq.c:533 (discriminator 19)) | [ 17.889742][ C3] Preemption disabled at: | [ 17.889743][ C3] __dev_queue_xmit (./include/linux/bottom_half.h:20 (discriminator 2) ./include/linux/rcupdate.h:902 (discriminator 2) net/core/dev.c:4844 (discriminator 2)) | [ 17.889747][ C3] Tainted: [W]=WARN [ 17.889748][ C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.889748][ C3] Call Trace: [ 17.889749][ C3] [ 17.889749][ C3] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 17.889752][ C3] ? __dev_queue_xmit (./include/linux/bottom_half.h:20 (discriminator 2) ./include/linux/rcupdate.h:902 (discriminator 2) net/core/dev.c:4844 (discriminator 2)) [ 17.889753][ C3] __might_resched.cold (kernel/sched/core.c:9234) [ 17.889756][ C3] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 17.889759][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.889760][ C3] __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)) [ 17.889762][ C3] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 17.889763][ C3] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 17.889766][ C3] ? 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) [ 17.889767][ C3] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 17.889769][ C3] put_chars (drivers/char/virtio_console.c:1176) [ 17.889771][ C3] ? __send_to_port (drivers/char/virtio_console.c:654) [ 17.889773][ C3] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 17.889775][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5208) [ 17.889777][ C3] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 17.889779][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.889781][ C3] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.889782][ C3] console_emit_next_record (kernel/printk/printk.c:3183) [ 17.889785][ C3] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 17.889786][ C3] ? 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)) [ 17.889788][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.889789][ C3] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.889791][ C3] console_flush_one_record (kernel/printk/printk.c:3268) [ 17.889793][ C3] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 17.889795][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.889797][ C3] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 17.889799][ C3] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 17.889801][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.889802][ C3] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 17.889804][ C3] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 17.889805][ C3] ? vprintk_emit (kernel/printk/printk.c:2478) [ 17.889807][ C3] vprintk_emit (kernel/printk/printk.c:2479) [ 17.889808][ C3] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 17.889809][ C3] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 17.889811][ C3] _printk (kernel/printk/printk.c:2504) [ 17.889813][ C3] ? snapshot_read.cold (user.c:?) [ 17.889814][ C3] ? ___ratelimit (lib/ratelimit.c:97 (discriminator 3)) [ 17.889816][ C3] ? idr_get_free (??:?) [ 17.889818][ C3] ip_frag_reasm.constprop.0.cold (net/ipv4/ip_fragment.c:463 (discriminator 3)) [ 17.889820][ C3] ip_frag_queue (net/ipv4/ip_fragment.c:364) [ 17.889822][ C3] ip_defrag (net/ipv4/ip_fragment.c:488) [ 17.889824][ C3] ? ip4_obj_hashfn (./include/linux/jhash.h:126 (discriminator 32768)) [ 17.889825][ C3] ? ip_route_input_noref (./include/linux/rcupdate.h:882 net/ipv4/route.c:2584) [ 17.889827][ C3] ? ip_route_input_slow (./include/linux/inetdevice.h:64 (discriminator 4)) [ 17.889829][ C3] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 17.889830][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.889832][ C3] ip_local_deliver (net/ipv4/ip_input.c:258) [ 17.889833][ C3] ? ip_local_deliver_finish (net/ipv4/ip_input.c:232 (discriminator 42)) [ 17.889834][ C3] ? 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)) [ 17.889835][ C3] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 17.889837][ C3] ip_rcv (./include/linux/netfilter.h:325 ./include/linux/netfilter.h:319 net/ipv4/ip_input.c:612) [ 17.889839][ C3] ? ip_local_deliver (./include/linux/rcupdate.h:878 (discriminator 3)) [ 17.889840][ C3] ? check_path.constprop.0 (kernel/locking/lockdep.c:1864 kernel/locking/lockdep.c:2147) [ 17.889842][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.889844][ C3] __netif_receive_skb_core.constprop.0 (net/core/dev.c:2533 net/core/dev.c:6221) [ 17.889846][ C3] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 17.889847][ C3] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 17.889849][ C3] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 17.889850][ C3] ? mark_usage (kernel/locking/lockdep.c:4690) [ 17.889852][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.889854][ C3] ? do_xdp_generic (net/core/dev.c:5732) [ 17.889855][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.889857][ C3] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 17.889858][ C3] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 17.889860][ C3] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 17.889861][ C3] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 17.889863][ C3] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 17.889864][ C3] ? sock_def_readable (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/core/sock.c:3663 (discriminator 2)) [ 17.889866][ C3] ? mark_usage (kernel/locking/lockdep.c:4690) [ 17.889867][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.889869][ C3] ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6726 (discriminator 2)) [ 17.889871][ C3] __netif_receive_skb_one_core (net/core/dev.c:6262) [ 17.889872][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.889874][ C3] ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6726 (discriminator 2)) [ 17.889876][ C3] ? __netif_receive_skb_list_core (net/core/dev.c:6310) [ 17.889877][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.889879][ C3] process_backlog (net/core/dev.c:6728) [ 17.889881][ C3] __napi_poll (net/core/dev.c:7787) [ 17.889883][ C3] net_rx_action (net/core/dev.c:7850 net/core/dev.c:8007) [ 17.889886][ C3] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.889887][ C3] ? __napi_poll (./include/net/gro.h:507) [ 17.889891][ C3] ? ktime_get_update_offsets_now (kernel/time/timekeeping.c:304 kernel/time/timekeeping.c:482 kernel/time/timekeeping.c:2859) [ 17.889892][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.889894][ C3] handle_softirqs (kernel/softirq.c:645) [ 17.889896][ C3] ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1)) [ 17.889897][ C3] ? 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) [ 17.889899][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.889900][ C3] ? __dev_queue_xmit (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:920 (discriminator 2) net/core/dev.c:4961 (discriminator 2)) [ 17.889902][ C3] do_softirq (kernel/softirq.c:546 (discriminator 19) kernel/softirq.c:533 (discriminator 19)) [ 17.889903][ C3] [ 17.889903][ C3] [ 17.889904][ C3] __local_bh_enable_ip (kernel/softirq.c:473) [ 17.889906][ C3] __dev_queue_xmit (./include/linux/bottom_half.h:33 (discriminator 2) ./include/linux/rcupdate.h:923 (discriminator 2) net/core/dev.c:4961 (discriminator 2)) [ 17.889907][ C3] ? _copy_from_iter (./include/linux/instrumented.h:146 lib/iov_iter.c:66 ./include/linux/iov_iter.h:30 ./include/linux/iov_iter.h:302 ./include/linux/iov_iter.h:330 lib/iov_iter.c:261 lib/iov_iter.c:272) [ 17.889909][ C3] ? _copy_from_iter_flushcache (./include/linux/iov_iter.h:112) [ 17.889911][ C3] ? _copy_from_iter_flushcache (./include/linux/iov_iter.h:112) [ 17.889912][ C3] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 17.889913][ C3] ? netdev_core_pick_tx (net/core/dev.c:4784) [ 17.889915][ C3] ? __virtio_net_hdr_to_skb.constprop.0 (./include/linux/virtio_net.h:105) [ 17.889917][ C3] ? alloc_pg_vec.isra.0 (net/packet/af_packet.c:4493 (discriminator 10)) [ 17.889918][ C3] ? packet_rcv_spkt (./include/net/dst.h:285) [ 17.889920][ C3] packet_snd (net/packet/af_packet.c:3110) [ 17.889922][ C3] ? kasan_addr_to_slab (./include/linux/page-flags.h:250 mm/kasan/../slab.h:176 mm/kasan/../slab.h:210 mm/kasan/common.c:48) [ 17.889924][ C3] ? tpacket_snd (net/packet/af_packet.c:2786 (discriminator 1)) [ 17.889925][ C3] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.889927][ C3] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 17.889928][ C3] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 17.889929][ C3] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 17.889931][ C3] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 17.889933][ C3] ? fdget (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:49 fs/file.c:1194 fs/file.c:1208) [ 17.889934][ C3] __sys_sendto (net/socket.c:2281) [ 17.889936][ C3] ? __ia32_sys_getpeername (net/socket.c:2235) [ 17.889940][ C3] ? fput_close_sync (fs/file_table.c:617) [ 17.889941][ C3] ? alloc_file_clone (fs/file_table.c:479) [ 17.889943][ C3] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 17.889945][ C3] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 17.889946][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 17.889948][ C3] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 17.889949][ C3] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 17.889951][ C3] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 17.889952][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 17.889953][ C3] RIP: 0033:0x7fbcb916454e [ 17.889955][ C3] 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 [ 17.889956][ C3] RSP: 002b:00007ffce901f710 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 17.889957][ C3] RAX: ffffffffffffffda RBX: 0000000000010018 RCX: 00007fbcb916454e [ 17.889958][ C3] RDX: 0000000000010018 RSI: 0000000000415120 RDI: 0000000000000007 [ 17.889958][ C3] RBP: 00007ffce901f720 R08: 00007ffce901f780 R09: 0000000000000014 [ 17.889959][ C3] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000007 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print mark_lock_irq:mark_lock:mark_usage:__lock_acquire:console_lock_spinning_enable do_softirq:__dev_queue_xmit:dump_stack_lvl:__kmalloc_noprof:put_chars