====================================== | [ 22.419785][ T401] softirqs last disabled at (25382): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 22.419787][ T401] Preemption disabled at: | [ 22.419788][ T401] 0x0 | [ 22.419798][ T401] Tainted: [W]=WARN [ 22.419799][ T401] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 22.419800][ T401] Call Trace: [ 22.419802][ T401] [ 22.419803][ T401] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 22.419810][ T401] __might_resched.cold (kernel/sched/core.c:9234) [ 22.419814][ T401] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 22.419818][ T401] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 22.419823][ T401] __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)) [ 22.419825][ T401] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 22.419831][ T401] ? 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) [ 22.419834][ T401] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 22.419837][ T401] put_chars (drivers/char/virtio_console.c:1176) [ 22.419840][ T401] ? __send_to_port (drivers/char/virtio_console.c:654) [ 22.419841][ T401] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 22.419845][ T401] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 22.419850][ T401] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 22.419858][ T401] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 22.419860][ T401] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.419862][ T401] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 22.419866][ T401] console_emit_next_record (kernel/printk/printk.c:3183) [ 22.419870][ T401] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 22.419872][ T401] ? 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)) [ 22.419875][ T401] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.419877][ T401] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 22.419881][ T401] console_flush_one_record (kernel/printk/printk.c:3268) [ 22.419885][ T401] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 22.419887][ T401] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.419892][ T401] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 22.419895][ T401] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 22.419897][ T401] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.419898][ T401] ? 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) [ 22.419902][ T401] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 22.419903][ T401] ? vprintk_emit (kernel/printk/printk.c:2478) [ 22.419906][ T401] vprintk_emit (kernel/printk/printk.c:2479) [ 22.419909][ T401] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 22.419912][ T401] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.419916][ T401] _printk (kernel/printk/printk.c:2504) [ 22.419919][ T401] ? snapshot_read.cold (user.c:?) [ 22.419922][ T401] ? 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) [ 22.419925][ T401] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 22.419928][ T401] ? 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) [ 22.419931][ T401] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 22.419935][ T401] ? exit_notify (kernel/exit.c:780) [ 22.419936][ T401] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 22.419939][ T401] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.419942][ T401] do_group_exit (kernel/exit.c:1151) [ 22.419945][ T401] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 22.419947][ T401] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 22.419949][ T401] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 22.419953][ T401] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 22.419956][ T401] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 22.419959][ T401] RIP: 0033:0x7fd67f0631b8 [ 22.419961][ T401] Code: Unable to access opcode bytes at 0x7fd67f06318e. Code starting with the faulting instruction =========================================== [ 22.419962][ T401] RSP: 002b:00007ffd538853b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 22.419965][ T401] RAX: ffffffffffffffda RBX: 00007fd67f193f88 RCX: 00007fd67f0631b8 [ 22.419966][ T401] RDX: 00007fd67edadfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 22.419967][ T401] RBP: 00007ffd53885410 R08: 0000000000000000 R09: 0000000000008010 [ 22.419968][ T401] R10: 00007ffd538851d0 R11: 0000000000000246 R12: 0000000000000001 [ 22.419968][ T401] R13: 0000000000000000 R14: 00007fd67f192680 R15: 00007fd67f193fa0 | [ 27.893600][ T610] softirqs last disabled at (17004): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 27.893602][ T610] Preemption disabled at: | [ 27.893603][ T610] vprintk_emit (kernel/printk/printk.c:2471) | [ 27.893611][ T610] Tainted: [W]=WARN [ 27.893612][ T610] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 27.893613][ T610] Call Trace: [ 27.893615][ T610] [ 27.893617][ T610] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 27.893622][ T610] ? vprintk_emit (kernel/printk/printk.c:2471) [ 27.893624][ T610] __might_resched.cold (kernel/sched/core.c:9234) [ 27.893629][ T610] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 27.893633][ T610] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 27.893638][ T610] __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)) [ 27.893640][ T610] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 27.893646][ T610] ? 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) [ 27.893649][ T610] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 27.893652][ T610] put_chars (drivers/char/virtio_console.c:1176) [ 27.893655][ T610] ? __send_to_port (drivers/char/virtio_console.c:654) [ 27.893657][ T610] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 27.893663][ T610] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 27.893670][ T610] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 27.893673][ T610] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.893676][ T610] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 27.893680][ T610] console_emit_next_record (kernel/printk/printk.c:3183) [ 27.893683][ T610] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 27.893685][ T610] ? 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)) [ 27.893689][ T610] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.893690][ T610] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 27.893694][ T610] console_flush_one_record (kernel/printk/printk.c:3268) [ 27.893698][ T610] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 27.893700][ T610] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 27.893710][ T610] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 27.893713][ T610] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 27.893715][ T610] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.893717][ T610] ? 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) [ 27.893720][ T610] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 27.893722][ T610] ? vprintk_emit (kernel/printk/printk.c:2478) [ 27.893725][ T610] vprintk_emit (kernel/printk/printk.c:2479) [ 27.893728][ T610] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 27.893730][ T610] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 27.893731][ T610] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 27.893735][ T610] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 27.893739][ T610] _printk (kernel/printk/printk.c:2504) [ 27.893742][ T610] ? snapshot_read.cold (user.c:?) [ 27.893745][ T610] ? br_multicast_flood (??:?) [ 27.893749][ T610] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 27.893750][ T610] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 27.893752][ T610] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 27.893756][ T610] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 27.893760][ T610] br_init_port (net/bridge/br_stp_if.c:39) [ 27.893762][ T610] new_nbp (net/bridge/br_if.c:449) [ 27.893766][ T610] br_add_if (net/bridge/br_if.c:592) [ 27.893768][ T610] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 27.893772][ T610] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 27.893777][ T610] do_set_master (net/core/rtnetlink.c:3071) [ 27.893780][ T610] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 27.893784][ T610] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 27.893787][ T610] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 27.893788][ T610] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 27.893791][ T610] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 27.893795][ T610] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 27.893797][ T610] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 27.893799][ T610] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 27.893801][ T610] ? kasan_save_stack (mm/kasan/common.c:58) [ 27.893803][ T610] ? kasan_save_stack (mm/kasan/common.c:57) [ 27.893804][ T610] ? kasan_save_track (mm/kasan/common.c:78) [ 27.893806][ T610] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 27.893808][ T610] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 27.893810][ T610] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 27.893813][ T610] ? ___sys_sendmsg (net/socket.c:2758) [ 27.893817][ T610] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 27.893819][ T610] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 27.893821][ T610] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.893823][ T610] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 27.893824][ T610] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.893825][ T610] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.893827][ T610] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 27.893829][ T610] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 27.893831][ T610] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 27.893833][ T610] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 27.893836][ T610] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 27.893837][ T610] ? nla_get_range_signed (lib/nlattr.c:270) [ 27.893842][ T610] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.893844][ T610] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 27.893849][ T610] rtnl_newlink (net/core/rtnetlink.c:4215) [ 27.893854][ T610] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 27.893856][ T610] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 27.893861][ T610] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 27.893863][ T610] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 27.893865][ T610] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 27.893866][ T610] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 27.893870][ T610] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 27.893872][ T610] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 27.893875][ T610] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 27.893876][ T610] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 27.893881][ T610] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 27.893883][ T610] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 27.893886][ T610] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 27.893889][ T610] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 27.893892][ T610] ? netlink_ack (./include/linux/skbuff.h:2718) [ 27.893899][ T610] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 27.893901][ T610] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 27.893905][ T610] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 27.893909][ T610] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 27.893911][ T610] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 27.893916][ T610] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 27.893920][ T610] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 27.893923][ T610] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 27.893925][ T610] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 27.893930][ T610] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 27.893933][ T610] ____sys_sendmsg (net/socket.c:2713) [ 27.893936][ T610] ? copy_msghdr_from_user (net/socket.c:2650) [ 27.893938][ T610] ? sock_write_iter (net/socket.c:1269) [ 27.893939][ T610] ? move_addr_to_kernel (net/socket.c:258) [ 27.893947][ T610] ___sys_sendmsg (net/socket.c:2767) [ 27.893949][ T610] ? copy_msghdr_from_user (net/socket.c:2619) [ 27.893965][ T610] __sys_sendmsg (net/socket.c:2799) [ 27.893968][ T610] ? __sys_sendmsg_sock (net/socket.c:2780) [ 27.893974][ T610] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.893977][ T610] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 27.893980][ T610] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 27.893983][ T610] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 27.893985][ T610] RIP: 0033:0x7fadd895b54e [ 27.893988][ T610] 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 [ 27.893990][ T610] RSP: 002b:00007ffeacce4a00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 27.893992][ T610] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fadd895b54e [ 27.893994][ T610] RDX: 0000000000000000 RSI: 00007ffeacce4ab0 RDI: 0000000000000005 [ 27.893995][ T610] RBP: 00007ffeacce4a10 R08: 0000000000000000 R09: 0000000000000000 [ 27.893995][ T610] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90df1b [ 27.893996][ T610] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffeacce5180 | [ 30.482758][ T630] softirqs last disabled at (1314087): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 30.482761][ T630] Preemption disabled at: | [ 30.482761][ T630] 0x0 | [ 30.482771][ T630] Tainted: [W]=WARN [ 30.482772][ T630] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 30.482774][ T630] Call Trace: [ 30.482776][ T630] [ 30.482777][ T630] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 30.482784][ T630] __might_resched.cold (kernel/sched/core.c:9234) [ 30.482789][ T630] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 30.482793][ T630] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 30.482797][ T630] __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)) [ 30.482799][ T630] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 30.482805][ T630] ? 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) [ 30.482808][ T630] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 30.482811][ T630] put_chars (drivers/char/virtio_console.c:1176) [ 30.482813][ T630] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 30.482815][ T630] ? __send_to_port (drivers/char/virtio_console.c:654) [ 30.482817][ T630] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 30.482820][ T630] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 30.482823][ T630] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 30.482827][ T630] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 30.482831][ T630] ? mark_usage (kernel/locking/lockdep.c:4690) [ 30.482833][ T630] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.482834][ T630] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.482838][ T630] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 30.482841][ T630] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 30.482844][ T630] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.482846][ T630] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.482850][ T630] console_emit_next_record (kernel/printk/printk.c:3183) [ 30.482854][ T630] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 30.482856][ T630] ? 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)) [ 30.482859][ T630] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.482860][ T630] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.482864][ T630] console_flush_one_record (kernel/printk/printk.c:3268) [ 30.482868][ T630] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 30.482870][ T630] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.482875][ T630] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 30.482878][ T630] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 30.482880][ T630] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.482882][ T630] ? 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) [ 30.482885][ T630] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 30.482887][ T630] ? vprintk_emit (kernel/printk/printk.c:2478) [ 30.482889][ T630] vprintk_emit (kernel/printk/printk.c:2479) [ 30.482893][ T630] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 30.482894][ T630] ? 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) [ 30.482897][ T630] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.482900][ T630] _printk (kernel/printk/printk.c:2504) [ 30.482904][ T630] ? snapshot_read.cold (user.c:?) [ 30.482907][ T630] ? 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) [ 30.482909][ T630] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 30.482913][ T630] ? 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) [ 30.482915][ T630] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 30.482919][ T630] ? exit_notify (kernel/exit.c:780) [ 30.482924][ T630] __x64_sys_exit (kernel/exit.c:1118 kernel/exit.c:1116 kernel/exit.c:1116) [ 30.482926][ T630] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:61) [ 30.482928][ T630] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 30.482932][ T630] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 30.482935][ T630] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 30.482937][ T630] RIP: 0033:0x7ff855d89c49 [ 30.482939][ T630] Code: Unable to access opcode bytes at 0x7ff855d89c1f. Code starting with the faulting instruction =========================================== [ 30.482940][ T630] RSP: 002b:00007ff855548e60 EFLAGS: 00000246 ORIG_RAX: 000000000000003c [ 30.482943][ T630] RAX: ffffffffffffffda RBX: 00007ff8555496c0 RCX: 00007ff855d89c49 [ 30.482944][ T630] RDX: 0000000000000000 RSI: 0000000000801000 RDI: 0000000000000000 [ 30.482945][ T630] RBP: 00007ff855548f70 R08: 0000000000000001 R09: 00007ff8555496c0 [ 30.482946][ T630] R10: 0000000000000008 R11: 0000000000000246 R12: 00007ff854d49000 [ 30.482946][ T630] R13: 00007ffd676a90a0 R14: 0000000000000002 R15: 00007ffd676a91a7 | [ 48.469268][ T1055] softirqs last disabled at (16642): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 48.469271][ T1055] Preemption disabled at: | [ 48.469272][ T1055] vprintk_emit (kernel/printk/printk.c:2471) | [ 48.469281][ T1055] Tainted: [W]=WARN [ 48.469282][ T1055] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 48.469283][ T1055] Call Trace: [ 48.469284][ T1055] [ 48.469286][ T1055] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 48.469292][ T1055] ? vprintk_emit (kernel/printk/printk.c:2471) [ 48.469294][ T1055] __might_resched.cold (kernel/sched/core.c:9234) [ 48.469299][ T1055] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 48.469303][ T1055] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 48.469308][ T1055] __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)) [ 48.469310][ T1055] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 48.469316][ T1055] ? 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) [ 48.469319][ T1055] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 48.469323][ T1055] put_chars (drivers/char/virtio_console.c:1176) [ 48.469325][ T1055] ? __send_to_port (drivers/char/virtio_console.c:654) [ 48.469327][ T1055] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 48.469331][ T1055] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 48.469336][ T1055] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 48.469345][ T1055] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 48.469347][ T1055] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 48.469350][ T1055] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 48.469354][ T1055] console_emit_next_record (kernel/printk/printk.c:3183) [ 48.469358][ T1055] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 48.469360][ T1055] ? 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)) [ 48.469363][ T1055] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 48.469365][ T1055] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 48.469369][ T1055] console_flush_one_record (kernel/printk/printk.c:3268) [ 48.469374][ T1055] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 48.469376][ T1055] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 48.469382][ T1055] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 48.469385][ T1055] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 48.469386][ T1055] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 48.469388][ T1055] ? 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) [ 48.469392][ T1055] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 48.469394][ T1055] ? vprintk_emit (kernel/printk/printk.c:2478) [ 48.469397][ T1055] vprintk_emit (kernel/printk/printk.c:2479) [ 48.469400][ T1055] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 48.469402][ T1055] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 48.469405][ T1055] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 48.469409][ T1055] _printk (kernel/printk/printk.c:2504) [ 48.469412][ T1055] ? snapshot_read.cold (user.c:?) [ 48.469416][ T1055] ? br_multicast_flood (??:?) [ 48.469420][ T1055] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 48.469421][ T1055] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 48.469423][ T1055] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 48.469427][ T1055] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 48.469432][ T1055] br_init_port (net/bridge/br_stp_if.c:39) [ 48.469434][ T1055] new_nbp (net/bridge/br_if.c:449) [ 48.469439][ T1055] br_add_if (net/bridge/br_if.c:592) [ 48.469441][ T1055] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 48.469445][ T1055] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 48.469450][ T1055] do_set_master (net/core/rtnetlink.c:3071) [ 48.469454][ T1055] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 48.469458][ T1055] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 48.469461][ T1055] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 48.469462][ T1055] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 48.469465][ T1055] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 48.469469][ T1055] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 48.469471][ T1055] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 48.469473][ T1055] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 48.469477][ T1055] ? kasan_save_stack (mm/kasan/common.c:58) [ 48.469480][ T1055] ? kasan_save_stack (mm/kasan/common.c:57) [ 48.469481][ T1055] ? kasan_save_track (mm/kasan/common.c:78) [ 48.469482][ T1055] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 48.469485][ T1055] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 48.469487][ T1055] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 48.469490][ T1055] ? ___sys_sendmsg (net/socket.c:2758) [ 48.469494][ T1055] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 48.469496][ T1055] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 48.469499][ T1055] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 48.469500][ T1055] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 48.469502][ T1055] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 48.469503][ T1055] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 48.469505][ T1055] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 48.469507][ T1055] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 48.469510][ T1055] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 48.469512][ T1055] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 48.469515][ T1055] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 48.469517][ T1055] ? nla_get_range_signed (lib/nlattr.c:270) [ 48.469522][ T1055] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 48.469524][ T1055] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 48.469529][ T1055] rtnl_newlink (net/core/rtnetlink.c:4215) [ 48.469535][ T1055] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 48.469537][ T1055] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 48.469542][ T1055] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 48.469544][ T1055] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 48.469546][ T1055] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 48.469548][ T1055] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 48.469552][ T1055] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 48.469554][ T1055] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 48.469557][ T1055] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 48.469558][ T1055] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 48.469563][ T1055] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 48.469565][ T1055] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 48.469569][ T1055] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 48.469572][ T1055] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 48.469575][ T1055] ? netlink_ack (./include/linux/skbuff.h:2718) [ 48.469582][ T1055] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 48.469584][ T1055] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 48.469588][ T1055] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 48.469592][ T1055] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 48.469595][ T1055] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 48.469599][ T1055] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 48.469603][ T1055] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 48.469607][ T1055] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 48.469609][ T1055] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 48.469615][ T1055] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 48.469617][ T1055] ____sys_sendmsg (net/socket.c:2713) [ 48.469620][ T1055] ? copy_msghdr_from_user (net/socket.c:2650) [ 48.469622][ T1055] ? sock_write_iter (net/socket.c:1269) [ 48.469624][ T1055] ? move_addr_to_kernel (net/socket.c:258) [ 48.469631][ T1055] ___sys_sendmsg (net/socket.c:2767) [ 48.469634][ T1055] ? copy_msghdr_from_user (net/socket.c:2619) [ 48.469651][ T1055] __sys_sendmsg (net/socket.c:2799) [ 48.469654][ T1055] ? __sys_sendmsg_sock (net/socket.c:2780) [ 48.469660][ T1055] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 48.469663][ T1055] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 48.469666][ T1055] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 48.469669][ T1055] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 48.469672][ T1055] RIP: 0033:0x7fc216b0454e [ 48.469676][ T1055] 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 [ 48.469677][ T1055] RSP: 002b:00007fff668fdbb0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 48.469680][ T1055] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fc216b0454e [ 48.469681][ T1055] RDX: 0000000000000000 RSI: 00007fff668fdc60 RDI: 0000000000000005 [ 48.469682][ T1055] RBP: 00007fff668fdbc0 R08: 0000000000000000 R09: 0000000000000000 [ 48.469683][ T1055] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90df2f [ 48.469684][ T1055] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff668fe330 | [ 51.052073][ T1074] softirqs last disabled at (1241564): fpu__clear_user_states (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/core.c:835 (discriminator 2)) | [ 51.052077][ T1074] Preemption disabled at: | [ 51.052078][ T1074] 0x0 | [ 51.052091][ T1074] Tainted: [W]=WARN [ 51.052092][ T1074] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 51.052095][ T1074] Call Trace: [ 51.052096][ T1074] [ 51.052098][ T1074] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 51.052106][ T1074] __might_resched.cold (kernel/sched/core.c:9234) [ 51.052112][ T1074] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 51.052118][ T1074] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 51.052124][ T1074] __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)) [ 51.052127][ T1074] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 51.052137][ T1074] ? 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) [ 51.052141][ T1074] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 51.052146][ T1074] put_chars (drivers/char/virtio_console.c:1176) [ 51.052149][ T1074] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 51.052152][ T1074] ? __send_to_port (drivers/char/virtio_console.c:654) [ 51.052157][ T1074] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 51.052161][ T1074] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 51.052165][ T1074] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 51.052171][ T1074] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 51.052176][ T1074] ? mark_usage (kernel/locking/lockdep.c:4690) [ 51.052179][ T1074] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 51.052181][ T1074] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 51.052188][ T1074] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 51.052192][ T1074] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 51.052198][ T1074] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 51.052201][ T1074] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 51.052208][ T1074] console_emit_next_record (kernel/printk/printk.c:3183) [ 51.052214][ T1074] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 51.052217][ T1074] ? 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)) [ 51.052222][ T1074] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 51.052225][ T1074] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 51.052231][ T1074] console_flush_one_record (kernel/printk/printk.c:3268) [ 51.052238][ T1074] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 51.052241][ T1074] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 51.052250][ T1074] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 51.052254][ T1074] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 51.052257][ T1074] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 51.052260][ T1074] ? 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) [ 51.052266][ T1074] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 51.052269][ T1074] ? vprintk_emit (kernel/printk/printk.c:2478) [ 51.052274][ T1074] vprintk_emit (kernel/printk/printk.c:2479) [ 51.052279][ T1074] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 51.052280][ T1074] ? 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) [ 51.052285][ T1074] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 51.052291][ T1074] _printk (kernel/printk/printk.c:2504) [ 51.052296][ T1074] ? snapshot_read.cold (user.c:?) [ 51.052301][ T1074] ? 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) [ 51.052305][ T1074] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 51.052311][ T1074] ? 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) [ 51.052316][ T1074] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 51.052321][ T1074] ? exit_notify (kernel/exit.c:780) [ 51.052331][ T1074] __x64_sys_exit (kernel/exit.c:1118 kernel/exit.c:1116 kernel/exit.c:1116) [ 51.052334][ T1074] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:61) [ 51.052337][ T1074] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 51.052342][ T1074] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 51.052347][ T1074] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 51.052350][ T1074] RIP: 0033:0x7fa990d99c49 [ 51.052353][ T1074] Code: Unable to access opcode bytes at 0x7fa990d99c1f. Code starting with the faulting instruction =========================================== [ 51.052355][ T1074] RSP: 002b:00007fa990558e60 EFLAGS: 00000246 ORIG_RAX: 000000000000003c [ 51.052358][ T1074] RAX: ffffffffffffffda RBX: 00007fa9905596c0 RCX: 00007fa990d99c49 [ 51.052361][ T1074] RDX: 0000000000000000 RSI: 0000000000801000 RDI: 0000000000000000 [ 51.052362][ T1074] RBP: 00007fa990558f70 R08: 0000000000000001 R09: 00007fa9905596c0 [ 51.052364][ T1074] R10: 0000000000000008 R11: 0000000000000246 R12: 00007fa98fd59000 Finger prints: netlink_release:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print fpu__clear_user_states:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print __alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars