====================================== | [ 10.419011][ T213] softirqs last disabled at (32113): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 10.419013][ T213] Preemption disabled at: | [ 10.419014][ T213] 0x0 | [ 10.419024][ T213] Tainted: [W]=WARN [ 10.419025][ T213] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.419027][ T213] Call Trace: [ 10.419028][ T213] [ 10.419030][ T213] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.419037][ T213] __might_resched.cold (kernel/sched/core.c:9234) [ 10.419041][ T213] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.419045][ T213] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.419050][ T213] __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)) [ 10.419052][ T213] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.419059][ T213] ? 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) [ 10.419062][ T213] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.419065][ T213] put_chars (drivers/char/virtio_console.c:1176) [ 10.419068][ T213] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.419069][ T213] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.419073][ T213] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.419078][ T213] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.419086][ T213] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.419089][ T213] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.419091][ T213] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.419095][ T213] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.419099][ T213] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.419101][ T213] ? 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)) [ 10.419104][ T213] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.419106][ T213] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.419110][ T213] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.419114][ T213] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.419116][ T213] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.419121][ T213] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.419124][ T213] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.419126][ T213] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.419128][ T213] ? 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) [ 10.419132][ T213] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.419133][ T213] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.419136][ T213] vprintk_emit (kernel/printk/printk.c:2479) [ 10.419139][ T213] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.419142][ T213] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.419146][ T213] _printk (kernel/printk/printk.c:2504) [ 10.419150][ T213] ? snapshot_read.cold (user.c:?) [ 10.419153][ T213] ? 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) [ 10.419155][ T213] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.419159][ T213] ? 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) [ 10.419162][ T213] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 10.419166][ T213] ? exit_notify (kernel/exit.c:780) [ 10.419167][ T213] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.419170][ T213] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.419174][ T213] do_group_exit (kernel/exit.c:1151) [ 10.419177][ T213] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 10.419179][ T213] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 10.419181][ T213] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.419185][ T213] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.419188][ T213] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.419191][ T213] RIP: 0033:0x7f31177f91b8 [ 10.419193][ T213] Code: Unable to access opcode bytes at 0x7f31177f918e. Code starting with the faulting instruction =========================================== [ 10.419194][ T213] RSP: 002b:00007fffd938e948 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.419197][ T213] RAX: ffffffffffffffda RBX: 00007f3117929f88 RCX: 00007f31177f91b8 [ 10.419198][ T213] RDX: 00007f3117543fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.419199][ T213] RBP: 00007fffd938e9a0 R08: 0000000000000000 R09: 0000000000000050 [ 10.419200][ T213] R10: 00007fffd938e760 R11: 0000000000000246 R12: 0000000000000001 [ 10.419201][ T213] R13: 0000000000000000 R14: 00007f3117928680 R15: 00007f3117929fa0 | [ 16.109351][ C0] | [ 16.109351][ C0] | [ 16.109351][ C0] stack backtrace: | [ 16.109357][ C0] Tainted: [W]=WARN [ 16.109358][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.109360][ C0] Call Trace: [ 16.109361][ C0] [ 16.109362][ C0] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 16.109366][ C0] print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141) [ 16.109368][ C0] mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310) [ 16.109371][ C0] mark_lock (kernel/locking/lockdep.c:4769) [ 16.109373][ C0] mark_usage (kernel/locking/lockdep.c:4658) [ 16.109375][ C0] __lock_acquire (kernel/locking/lockdep.c:5208) [ 16.109377][ C0] lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.109379][ C0] ? console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2)) [ 16.109381][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.109383][ C0] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.109385][ C0] console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2)) [ 16.109386][ C0] ? console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2)) [ 16.109388][ C0] console_emit_next_record (kernel/printk/printk.c:3177) [ 16.109390][ C0] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 16.109392][ 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)) [ 16.109394][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.109395][ C0] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.109397][ C0] console_flush_one_record (kernel/printk/printk.c:3268) [ 16.109399][ C0] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 16.109401][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.109403][ C0] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 16.109405][ C0] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 16.109407][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.109408][ C0] ? 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) [ 16.109410][ C0] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 16.109412][ C0] ? vprintk_emit (kernel/printk/printk.c:2478) [ 16.109413][ C0] vprintk_emit (kernel/printk/printk.c:2479) [ 16.109414][ C0] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 16.109416][ C0] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 16.109418][ C0] _printk (kernel/printk/printk.c:2504) [ 16.109420][ C0] ? snapshot_read.cold (user.c:?) [ 16.109421][ C0] ? ___ratelimit (lib/ratelimit.c:97 (discriminator 3)) [ 16.109424][ C0] ? idr_get_free (??:?) [ 16.109427][ C0] ip_frag_reasm.constprop.0.cold (net/ipv4/ip_fragment.c:463 (discriminator 3)) [ 16.109428][ C0] ip_frag_queue (net/ipv4/ip_fragment.c:364) [ 16.109431][ C0] ip_defrag (net/ipv4/ip_fragment.c:488) [ 16.109432][ C0] ? ip4_obj_hashfn (./include/linux/jhash.h:126 (discriminator 32768)) [ 16.109433][ C0] ? ip_route_input_noref (./include/linux/rcupdate.h:882 net/ipv4/route.c:2584) [ 16.109436][ C0] ? ip_route_input_slow (./include/linux/inetdevice.h:64 (discriminator 4)) [ 16.109438][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 16.109440][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.109442][ C0] ip_local_deliver (net/ipv4/ip_input.c:258) [ 16.109443][ C0] ? ip_local_deliver_finish (net/ipv4/ip_input.c:232 (discriminator 42)) [ 16.109444][ 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)) [ 16.109445][ C0] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 16.109449][ C0] ip_rcv (./include/linux/netfilter.h:325 ./include/linux/netfilter.h:319 net/ipv4/ip_input.c:612) [ 16.109450][ C0] ? ip_local_deliver (./include/linux/rcupdate.h:878 (discriminator 3)) [ 16.109451][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2650) [ 16.109453][ C0] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 16.109456][ C0] ? x86_64_start_kernel (arch/x86/kernel/head64.c:291) [ 16.109459][ C0] ? sched_balance_find_src_group (kernel/sched/fair.c:12940) [ 16.109461][ C0] __netif_receive_skb_core.constprop.0 (net/core/dev.c:2533 net/core/dev.c:6221) [ 16.109463][ C0] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 16.109465][ C0] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 16.109467][ C0] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 16.109469][ C0] ? mark_usage (kernel/locking/lockdep.c:4690) [ 16.109471][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.109473][ C0] ? do_xdp_generic (net/core/dev.c:5732) [ 16.109474][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.109476][ C0] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 16.109478][ C0] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 16.109479][ C0] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 16.109481][ C0] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 16.109482][ C0] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 16.109484][ C0] ? sock_def_readable (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/core/sock.c:3663 (discriminator 2)) [ 16.109486][ C0] ? mark_usage (kernel/locking/lockdep.c:4690) [ 16.109487][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.109489][ C0] ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6726 (discriminator 2)) [ 16.109491][ C0] __netif_receive_skb_one_core (net/core/dev.c:6262) [ 16.109493][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.109494][ C0] ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6726 (discriminator 2)) [ 16.109496][ C0] ? __netif_receive_skb_list_core (net/core/dev.c:6310) [ 16.109497][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.109499][ C0] process_backlog (net/core/dev.c:6728) [ 16.109502][ C0] __napi_poll (net/core/dev.c:7787) [ 16.109504][ C0] net_rx_action (net/core/dev.c:7850 net/core/dev.c:8007) [ 16.109506][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.109508][ C0] ? __napi_poll (./include/net/gro.h:507) [ 16.109511][ C0] ? ktime_get_update_offsets_now (kernel/time/timekeeping.c:304 kernel/time/timekeeping.c:482 kernel/time/timekeeping.c:2859) [ 16.109514][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.109516][ C0] handle_softirqs (kernel/softirq.c:645) [ 16.109518][ C0] ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1)) [ 16.109519][ 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) [ 16.109521][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.109522][ C0] ? __dev_queue_xmit (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:920 (discriminator 2) net/core/dev.c:4961 (discriminator 2)) [ 16.109524][ C0] do_softirq (kernel/softirq.c:546 (discriminator 19) kernel/softirq.c:533 (discriminator 19)) [ 16.109526][ C0] [ 16.109526][ C0] [ 16.109527][ C0] __local_bh_enable_ip (kernel/softirq.c:473) [ 16.109528][ C0] __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)) [ 16.109530][ C0] ? _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) [ 16.109534][ C0] ? _copy_from_iter_flushcache (./include/linux/iov_iter.h:112) [ 16.109536][ C0] ? _copy_from_iter_flushcache (./include/linux/iov_iter.h:112) [ 16.109537][ C0] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 16.109539][ C0] ? netdev_core_pick_tx (net/core/dev.c:4784) [ 16.109541][ C0] ? __virtio_net_hdr_to_skb.constprop.0 (./include/linux/virtio_net.h:105) [ 16.109543][ C0] ? alloc_pg_vec.isra.0 (net/packet/af_packet.c:4493 (discriminator 10)) [ 16.109544][ C0] ? packet_rcv_spkt (./include/net/dst.h:285) [ 16.109546][ C0] packet_snd (net/packet/af_packet.c:3110) [ 16.109549][ C0] ? 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) [ 16.109551][ C0] ? tpacket_snd (net/packet/af_packet.c:2786 (discriminator 1)) [ 16.109553][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.109554][ C0] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 16.109555][ C0] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 16.109557][ C0] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 16.109559][ C0] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 16.109560][ C0] ? fdget (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:49 fs/file.c:1194 fs/file.c:1208) [ 16.109563][ C0] __sys_sendto (net/socket.c:2281) [ 16.109565][ C0] ? __ia32_sys_getpeername (net/socket.c:2235) [ 16.109569][ C0] ? fput_close_sync (fs/file_table.c:617) [ 16.109571][ C0] ? alloc_file_clone (fs/file_table.c:479) [ 16.109573][ C0] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 16.109575][ C0] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 16.109578][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 16.109579][ C0] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 16.109581][ C0] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 16.109582][ C0] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 16.109584][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 16.109586][ C0] RIP: 0033:0x7f9d7566d54e [ 16.109589][ 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 [ 16.109590][ C0] RSP: 002b:00007ffc8b971aa0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 16.109593][ C0] RAX: ffffffffffffffda RBX: 0000000000010018 RCX: 00007f9d7566d54e [ 16.109594][ C0] RDX: 0000000000010018 RSI: 0000000000415120 RDI: 0000000000000007 [ 16.109595][ C0] RBP: 00007ffc8b971ab0 R08: 00007ffc8b971b10 R09: 0000000000000014 [ 16.109596][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000007 [ 16.109597][ C0] R13: 0000000000000006 R14: 00007f9d7583e000 R15: 0000000000404e00 | [ 16.109614][ C0] softirqs last disabled at (25863): do_softirq (kernel/softirq.c:546 (discriminator 19) kernel/softirq.c:533 (discriminator 19)) | [ 16.109615][ C0] Preemption disabled at: | [ 16.109616][ C0] __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)) | [ 16.109620][ C0] Tainted: [W]=WARN [ 16.109621][ C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.109621][ C0] Call Trace: [ 16.109622][ C0] [ 16.109623][ C0] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 16.109625][ C0] ? __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)) [ 16.109627][ C0] __might_resched.cold (kernel/sched/core.c:9234) [ 16.109629][ C0] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 16.109632][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.109633][ 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)) [ 16.109634][ C0] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 16.109636][ C0] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.109638][ 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) [ 16.109640][ C0] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.109642][ C0] put_chars (drivers/char/virtio_console.c:1176) [ 16.109644][ C0] ? __send_to_port (drivers/char/virtio_console.c:654) [ 16.109646][ C0] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 16.109648][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5208) [ 16.109651][ C0] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 16.109653][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.109654][ C0] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.109656][ C0] console_emit_next_record (kernel/printk/printk.c:3183) [ 16.109658][ C0] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 16.109660][ 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)) [ 16.109662][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.109663][ C0] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.109665][ C0] console_flush_one_record (kernel/printk/printk.c:3268) [ 16.109667][ C0] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 16.109669][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.109671][ C0] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 16.109673][ C0] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 16.109675][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.109676][ C0] ? 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) [ 16.109677][ C0] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 16.109679][ C0] ? vprintk_emit (kernel/printk/printk.c:2478) [ 16.109680][ C0] vprintk_emit (kernel/printk/printk.c:2479) [ 16.109682][ C0] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 16.109683][ C0] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 16.109685][ C0] _printk (kernel/printk/printk.c:2504) [ 16.109687][ C0] ? snapshot_read.cold (user.c:?) [ 16.109688][ C0] ? ___ratelimit (lib/ratelimit.c:97 (discriminator 3)) [ 16.109690][ C0] ? idr_get_free (??:?) [ 16.109692][ C0] ip_frag_reasm.constprop.0.cold (net/ipv4/ip_fragment.c:463 (discriminator 3)) [ 16.109694][ C0] ip_frag_queue (net/ipv4/ip_fragment.c:364) [ 16.109696][ C0] ip_defrag (net/ipv4/ip_fragment.c:488) [ 16.109698][ C0] ? ip4_obj_hashfn (./include/linux/jhash.h:126 (discriminator 32768)) [ 16.109699][ C0] ? ip_route_input_noref (./include/linux/rcupdate.h:882 net/ipv4/route.c:2584) [ 16.109701][ C0] ? ip_route_input_slow (./include/linux/inetdevice.h:64 (discriminator 4)) [ 16.109702][ C0] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 16.109704][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.109705][ C0] ip_local_deliver (net/ipv4/ip_input.c:258) [ 16.109707][ C0] ? ip_local_deliver_finish (net/ipv4/ip_input.c:232 (discriminator 42)) [ 16.109708][ 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)) [ 16.109709][ C0] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 16.109711][ C0] ip_rcv (./include/linux/netfilter.h:325 ./include/linux/netfilter.h:319 net/ipv4/ip_input.c:612) [ 16.109713][ C0] ? ip_local_deliver (./include/linux/rcupdate.h:878 (discriminator 3)) [ 16.109714][ C0] ? rcu_do_batch (kernel/rcu/tree.c:2650) [ 16.109715][ C0] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 16.109716][ C0] ? x86_64_start_kernel (arch/x86/kernel/head64.c:291) [ 16.109718][ C0] ? sched_balance_find_src_group (kernel/sched/fair.c:12940) [ 16.109719][ C0] __netif_receive_skb_core.constprop.0 (net/core/dev.c:2533 net/core/dev.c:6221) [ 16.109721][ C0] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 16.109723][ C0] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 16.109724][ C0] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 16.109726][ C0] ? mark_usage (kernel/locking/lockdep.c:4690) [ 16.109728][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.109729][ C0] ? do_xdp_generic (net/core/dev.c:5732) [ 16.109731][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.109733][ C0] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 16.109739][ C0] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 16.109741][ C0] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 16.109742][ C0] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 16.109743][ C0] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 16.109745][ C0] ? sock_def_readable (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/core/sock.c:3663 (discriminator 2)) [ 16.109746][ C0] ? mark_usage (kernel/locking/lockdep.c:4690) [ 16.109748][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.109750][ C0] ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6726 (discriminator 2)) [ 16.109752][ C0] __netif_receive_skb_one_core (net/core/dev.c:6262) [ 16.109753][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.109755][ C0] ? process_backlog (./include/linux/local_lock_internal.h:62 (discriminator 2) net/core/dev.c:6726 (discriminator 2)) [ 16.109757][ C0] ? __netif_receive_skb_list_core (net/core/dev.c:6310) [ 16.109758][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.109760][ C0] process_backlog (net/core/dev.c:6728) [ 16.109763][ C0] __napi_poll (net/core/dev.c:7787) [ 16.109765][ C0] net_rx_action (net/core/dev.c:7850 net/core/dev.c:8007) [ 16.109767][ C0] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.109769][ C0] ? __napi_poll (./include/net/gro.h:507) [ 16.109772][ C0] ? ktime_get_update_offsets_now (kernel/time/timekeeping.c:304 kernel/time/timekeeping.c:482 kernel/time/timekeeping.c:2859) [ 16.109774][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.109775][ C0] handle_softirqs (kernel/softirq.c:645) [ 16.109777][ C0] ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1)) [ 16.109779][ 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) [ 16.109780][ C0] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.109782][ C0] ? __dev_queue_xmit (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:920 (discriminator 2) net/core/dev.c:4961 (discriminator 2)) [ 16.109783][ C0] do_softirq (kernel/softirq.c:546 (discriminator 19) kernel/softirq.c:533 (discriminator 19)) [ 16.109785][ C0] [ 16.109785][ C0] [ 16.109786][ C0] __local_bh_enable_ip (kernel/softirq.c:473) [ 16.109787][ C0] __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)) [ 16.109789][ C0] ? _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) [ 16.109791][ C0] ? _copy_from_iter_flushcache (./include/linux/iov_iter.h:112) [ 16.109793][ C0] ? _copy_from_iter_flushcache (./include/linux/iov_iter.h:112) [ 16.109794][ C0] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 16.109795][ C0] ? netdev_core_pick_tx (net/core/dev.c:4784) [ 16.109797][ C0] ? __virtio_net_hdr_to_skb.constprop.0 (./include/linux/virtio_net.h:105) [ 16.109799][ C0] ? alloc_pg_vec.isra.0 (net/packet/af_packet.c:4493 (discriminator 10)) [ 16.109800][ C0] ? packet_rcv_spkt (./include/net/dst.h:285) [ 16.109802][ C0] packet_snd (net/packet/af_packet.c:3110) [ 16.109804][ C0] ? 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) [ 16.109806][ C0] ? tpacket_snd (net/packet/af_packet.c:2786 (discriminator 1)) [ 16.109807][ C0] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.109809][ C0] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 16.109810][ C0] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 16.109812][ C0] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 16.109814][ C0] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 16.109815][ C0] ? fdget (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:49 fs/file.c:1194 fs/file.c:1208) [ 16.109817][ C0] __sys_sendto (net/socket.c:2281) [ 16.109819][ C0] ? __ia32_sys_getpeername (net/socket.c:2235) [ 16.109822][ C0] ? fput_close_sync (fs/file_table.c:617) [ 16.109824][ C0] ? alloc_file_clone (fs/file_table.c:479) [ 16.109826][ C0] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 16.109828][ C0] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 16.109829][ C0] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 16.109831][ C0] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 16.109832][ C0] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 16.109834][ C0] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 16.109835][ C0] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 16.109837][ C0] RIP: 0033:0x7f9d7566d54e [ 16.109838][ 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 [ 16.109839][ C0] RSP: 002b:00007ffc8b971aa0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 16.109840][ C0] RAX: ffffffffffffffda RBX: 0000000000010018 RCX: 00007f9d7566d54e [ 16.109841][ C0] RDX: 0000000000010018 RSI: 0000000000415120 RDI: 0000000000000007 [ 16.109842][ C0] RBP: 00007ffc8b971ab0 R08: 00007ffc8b971b10 R09: 0000000000000014 [ 16.109843][ C0] 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