====================================== | [ 9.248850][ T186] softirqs last disabled at (33711): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.248852][ T186] Preemption disabled at: | [ 9.248853][ T186] 0x0 | [ 9.248863][ T186] Tainted: [W]=WARN [ 9.248864][ T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.248866][ T186] Call Trace: [ 9.248867][ T186] [ 9.248869][ T186] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.248875][ T186] __might_resched.cold (kernel/sched/core.c:9234) [ 9.248880][ T186] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.248884][ T186] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.248889][ T186] __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)) [ 9.248891][ T186] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.248897][ T186] ? 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) [ 9.248900][ T186] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.248903][ T186] put_chars (drivers/char/virtio_console.c:1176) [ 9.248906][ T186] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.248907][ T186] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.248912][ T186] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.248917][ T186] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.248923][ T186] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.248925][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.248928][ T186] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.248932][ T186] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.248936][ T186] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.248937][ T186] ? 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)) [ 9.248940][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.248943][ T186] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.248947][ T186] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.248951][ T186] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.248953][ T186] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.248958][ T186] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.248961][ T186] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.248962][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.248965][ T186] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.248968][ T186] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.248970][ T186] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.248973][ T186] vprintk_emit (kernel/printk/printk.c:2479) [ 9.248977][ T186] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.248981][ T186] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.248984][ T186] _printk (kernel/printk/printk.c:2504) [ 9.248988][ T186] ? snapshot_read.cold (user.c:?) [ 9.248991][ T186] ? 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) [ 9.248993][ T186] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.248997][ T186] ? 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) [ 9.249000][ T186] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.249004][ T186] ? exit_notify (kernel/exit.c:780) [ 9.249006][ T186] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.249008][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.249012][ T186] do_group_exit (kernel/exit.c:1151) [ 9.249015][ T186] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.249017][ T186] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.249019][ T186] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.249022][ T186] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.249026][ T186] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.249028][ T186] RIP: 0033:0x7f2c5745d1b8 [ 9.249030][ T186] Code: Unable to access opcode bytes at 0x7f2c5745d18e. Code starting with the faulting instruction =========================================== [ 9.249031][ T186] RSP: 002b:00007ffd81156d18 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.249033][ T186] RAX: ffffffffffffffda RBX: 00007f2c5758df88 RCX: 00007f2c5745d1b8 [ 9.249035][ T186] RDX: 00007f2c571a7fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.249035][ T186] RBP: 00007ffd81156d70 R08: 0000000000000000 R09: 0000000000008010 [ 9.249036][ T186] R10: 00007ffd81156b30 R11: 0000000000000246 R12: 0000000000000001 [ 9.249037][ T186] R13: 0000000000000000 R14: 00007f2c5758c680 R15: 00007f2c5758dfa0 | [ 11.126579][ T256] softirqs last disabled at (14318): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 11.126581][ T256] Preemption disabled at: | [ 11.126582][ T256] vprintk_emit (kernel/printk/printk.c:2471) | [ 11.126591][ T256] Tainted: [W]=WARN [ 11.126592][ T256] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.126593][ T256] Call Trace: [ 11.126595][ T256] [ 11.126596][ T256] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.126602][ T256] ? vprintk_emit (kernel/printk/printk.c:2471) [ 11.126604][ T256] __might_resched.cold (kernel/sched/core.c:9234) [ 11.126609][ T256] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.126614][ T256] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.126618][ T256] __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)) [ 11.126621][ T256] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.126626][ T256] ? 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) [ 11.126629][ T256] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.126632][ T256] put_chars (drivers/char/virtio_console.c:1176) [ 11.126635][ T256] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.126639][ T256] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 11.126642][ T256] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.126645][ T256] ? mark_usage (kernel/locking/lockdep.c:4690) [ 11.126647][ T256] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.126649][ T256] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.126652][ T256] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.126654][ T256] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 11.126657][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.126661][ T256] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.126665][ T256] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.126668][ T256] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.126670][ T256] ? 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)) [ 11.126673][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.126675][ T256] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.126679][ T256] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.126683][ T256] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.126685][ T256] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.126690][ T256] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.126692][ T256] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.126694][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.126696][ T256] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 11.126700][ T256] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.126701][ T256] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.126704][ T256] vprintk_emit (kernel/printk/printk.c:2479) [ 11.126708][ T256] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.126710][ T256] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.126712][ T256] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 11.126716][ T256] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 11.126720][ T256] _printk (kernel/printk/printk.c:2504) [ 11.126723][ T256] ? snapshot_read.cold (user.c:?) [ 11.126727][ T256] ? br_multicast_flood (??:?) bridge [ 11.126739][ T256] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 11.126740][ T256] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 11.126741][ T256] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.126746][ T256] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge [ 11.126755][ T256] br_init_port (net/bridge/br_stp_if.c:39) bridge [ 11.126763][ T256] new_nbp (net/bridge/br_if.c:449) bridge [ 11.126772][ T256] br_add_if (net/bridge/br_if.c:592) bridge [ 11.126779][ T256] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 11.126783][ T256] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 11.126786][ T256] ? __kernel_text_address (kernel/extable.c:79) [ 11.126790][ T256] do_set_master (net/core/rtnetlink.c:3071) [ 11.126794][ T256] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 11.126797][ T256] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 11.126800][ T256] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 11.126802][ T256] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 11.126804][ T256] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 11.126808][ T256] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.126810][ T256] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.126812][ T256] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.126815][ T256] ? kasan_save_stack (mm/kasan/common.c:58) [ 11.126818][ T256] ? kasan_save_stack (mm/kasan/common.c:57) [ 11.126819][ T256] ? kasan_save_track (mm/kasan/common.c:78) [ 11.126822][ T256] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.126824][ T256] ? netlink_seq_next (net/netlink/af_netlink.c:2685) [ 11.126827][ T256] ? ___sys_sendmsg (net/socket.c:2757) [ 11.126831][ T256] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.126833][ T256] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.126836][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.126838][ T256] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.126839][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.126841][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.126843][ T256] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 11.126847][ T256] ? __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) [ 11.126849][ T256] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 11.126851][ T256] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.126854][ T256] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 11.126855][ T256] ? nla_get_range_signed (lib/nlattr.c:270) [ 11.126860][ T256] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 11.126865][ T256] rtnl_newlink (net/core/rtnetlink.c:4215) [ 11.126870][ T256] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.126872][ T256] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.126876][ T256] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.126878][ T256] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.126880][ T256] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.126882][ T256] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.126885][ T256] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.126887][ T256] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.126890][ T256] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.126891][ T256] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.126896][ T256] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.126897][ T256] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.126901][ T256] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 11.126902][ T256] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.126905][ T256] ? netlink_ack (./include/linux/skbuff.h:2718) [ 11.126911][ T256] ? 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)) [ 11.126912][ T256] ? 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)) [ 11.126916][ T256] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 11.126920][ T256] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 11.126922][ T256] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.126926][ T256] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 11.126930][ T256] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 11.126933][ T256] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 11.126939][ T256] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 11.126941][ T256] ? copy_msghdr_from_user (net/socket.c:2650) [ 11.126943][ T256] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 11.126945][ T256] ? move_addr_to_kernel (net/socket.c:258) [ 11.126951][ T256] ___sys_sendmsg (net/socket.c:2767) [ 11.126954][ T256] ? copy_msghdr_from_user (net/socket.c:2619) [ 11.126969][ T256] __sys_sendmsg (net/socket.c:2799) [ 11.126972][ T256] ? __sys_sendmsg_sock (net/socket.c:2780) [ 11.126978][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.126981][ T256] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.126983][ T256] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.126986][ T256] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.126989][ T256] RIP: 0033:0x7fb46e2cd54e [ 11.126992][ T256] 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 [ 11.126994][ T256] RSP: 002b:00007ffd8c746560 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 11.126996][ T256] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fb46e2cd54e [ 11.126997][ T256] RDX: 0000000000000000 RSI: 00007ffd8c746610 RDI: 0000000000000005 [ 11.126998][ T256] RBP: 00007ffd8c746570 R08: 0000000000000000 R09: 0000000000000000 [ 11.126999][ T256] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90dd22 [ 11.127000][ T256] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd8c746cd0 | [ 12.396168][ T305] softirqs last disabled at (12960): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 12.396171][ T305] Preemption disabled at: | [ 12.396171][ T305] vprintk_emit (kernel/printk/printk.c:2471) | [ 12.396180][ T305] Tainted: [W]=WARN [ 12.396181][ T305] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.396183][ T305] Call Trace: [ 12.396185][ T305] [ 12.396186][ T305] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.396192][ T305] ? vprintk_emit (kernel/printk/printk.c:2471) [ 12.396195][ T305] __might_resched.cold (kernel/sched/core.c:9234) [ 12.396199][ T305] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.396204][ T305] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.396209][ T305] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 12.396212][ T305] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.396217][ T305] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 12.396220][ T305] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.396223][ T305] put_chars (drivers/char/virtio_console.c:1176) [ 12.396225][ T305] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 12.396227][ T305] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.396231][ T305] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.396235][ T305] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.396238][ T305] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.396241][ T305] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.396244][ T305] ? mark_usage (kernel/locking/lockdep.c:4690) [ 12.396246][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.396247][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.396252][ T305] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.396254][ T305] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 12.396257][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.396259][ T305] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.396263][ T305] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.396267][ T305] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.396269][ T305] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 12.396272][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.396275][ T305] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.396279][ T305] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.396283][ T305] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.396285][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.396290][ T305] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.396293][ T305] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.396303][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.396307][ T305] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 12.396313][ T305] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.396315][ T305] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.396320][ T305] vprintk_emit (kernel/printk/printk.c:2479) [ 12.396324][ T305] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.396327][ T305] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.396329][ T305] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 12.396333][ T305] _printk (kernel/printk/printk.c:2504) [ 12.396337][ T305] ? snapshot_read.cold (user.c:?) [ 12.396341][ T305] ? br_multicast_flood (??:?) bridge [ 12.396354][ T305] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 12.396355][ T305] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 12.396356][ T305] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 12.396361][ T305] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge [ 12.396373][ T305] br_init_port (net/bridge/br_stp_if.c:39) bridge [ 12.396382][ T305] new_nbp (net/bridge/br_if.c:449) bridge [ 12.396391][ T305] br_add_if (net/bridge/br_if.c:592) bridge [ 12.396398][ T305] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 12.396403][ T305] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 12.396406][ T305] ? __kernel_text_address (kernel/extable.c:79) [ 12.396410][ T305] do_set_master (net/core/rtnetlink.c:3071) [ 12.396415][ T305] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 12.396418][ T305] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 12.396421][ T305] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 12.396422][ T305] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 12.396424][ T305] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 12.396428][ T305] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.396430][ T305] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.396432][ T305] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.396435][ T305] ? kasan_save_stack (mm/kasan/common.c:58) [ 12.396438][ T305] ? kasan_save_stack (mm/kasan/common.c:57) [ 12.396440][ T305] ? kasan_save_track (mm/kasan/common.c:78) [ 12.396443][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.396444][ T305] ? netlink_seq_next (net/netlink/af_netlink.c:2685) [ 12.396447][ T305] ? ___sys_sendmsg (net/socket.c:2757) [ 12.396452][ T305] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.396454][ T305] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 12.396456][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.396459][ T305] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.396460][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.396462][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.396465][ T305] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 12.396469][ T305] ? __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) [ 12.396472][ T305] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 12.396474][ T305] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 12.396477][ T305] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 12.396479][ T305] ? nla_get_range_signed (lib/nlattr.c:270) [ 12.396484][ T305] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 12.396489][ T305] rtnl_newlink (net/core/rtnetlink.c:4215) [ 12.396494][ T305] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.396496][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.396501][ T305] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.396503][ T305] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.396505][ T305] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.396507][ T305] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.396510][ T305] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.396512][ T305] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 12.396515][ T305] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 12.396517][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.396521][ T305] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.396523][ T305] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.396526][ T305] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 12.396528][ T305] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 12.396531][ T305] ? netlink_ack (./include/linux/skbuff.h:2718) [ 12.396537][ T305] ? 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)) [ 12.396539][ T305] ? 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)) [ 12.396543][ T305] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 12.396547][ T305] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 12.396549][ T305] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.396553][ T305] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 12.396557][ T305] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 12.396561][ T305] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 12.396566][ T305] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 12.396569][ T305] ? copy_msghdr_from_user (net/socket.c:2650) [ 12.396571][ T305] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 12.396573][ T305] ? move_addr_to_kernel (net/socket.c:258) [ 12.396580][ T305] ___sys_sendmsg (net/socket.c:2767) [ 12.396583][ T305] ? copy_msghdr_from_user (net/socket.c:2619) [ 12.396598][ T305] __sys_sendmsg (net/socket.c:2799) [ 12.396601][ T305] ? __sys_sendmsg_sock (net/socket.c:2780) [ 12.396607][ T305] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.396611][ T305] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.396614][ T305] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.396617][ T305] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.396619][ T305] RIP: 0033:0x7f8a3b3d154e [ 12.396622][ T305] 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 [ 12.396624][ T305] RSP: 002b:00007ffd981db4e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 12.396627][ T305] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f8a3b3d154e [ 12.396629][ T305] RDX: 0000000000000000 RSI: 00007ffd981db590 RDI: 0000000000000005 [ 12.396629][ T305] RBP: 00007ffd981db4f0 R08: 0000000000000000 R09: 0000000000000000 [ 12.396630][ T305] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90dd23 [ 12.396631][ T305] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd981dbc50 | [ 13.489059][ T348] softirqs last disabled at (12446): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 13.489062][ T348] Preemption disabled at: | [ 13.489062][ T348] vprintk_emit (kernel/printk/printk.c:2471) | [ 13.489072][ T348] Tainted: [W]=WARN [ 13.489073][ T348] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.489074][ T348] Call Trace: [ 13.489076][ T348] [ 13.489077][ T348] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 13.489084][ T348] ? vprintk_emit (kernel/printk/printk.c:2471) [ 13.489086][ T348] __might_resched.cold (kernel/sched/core.c:9234) [ 13.489091][ T348] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 13.489095][ T348] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 13.489100][ T348] __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)) [ 13.489103][ T348] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.489108][ T348] ? 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) [ 13.489111][ T348] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.489114][ T348] put_chars (drivers/char/virtio_console.c:1176) [ 13.489116][ T348] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 13.489118][ T348] ? __send_to_port (drivers/char/virtio_console.c:654) [ 13.489121][ T348] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 13.489126][ T348] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 13.489128][ T348] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 13.489132][ T348] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 13.489135][ T348] ? mark_usage (kernel/locking/lockdep.c:4690) [ 13.489137][ T348] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.489138][ T348] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.489142][ T348] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 13.489144][ T348] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 13.489147][ T348] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.489150][ T348] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.489154][ T348] console_emit_next_record (kernel/printk/printk.c:3183) [ 13.489158][ T348] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 13.489159][ T348] ? 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)) [ 13.489162][ T348] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.489165][ T348] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.489169][ T348] console_flush_one_record (kernel/printk/printk.c:3268) [ 13.489173][ T348] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 13.489175][ T348] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.489180][ T348] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 13.489183][ T348] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 13.489184][ T348] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.489187][ T348] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 13.489190][ T348] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 13.489192][ T348] ? vprintk_emit (kernel/printk/printk.c:2478) [ 13.489195][ T348] vprintk_emit (kernel/printk/printk.c:2479) [ 13.489200][ T348] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 13.489202][ T348] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.489205][ T348] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 13.489208][ T348] _printk (kernel/printk/printk.c:2504) [ 13.489212][ T348] ? snapshot_read.cold (user.c:?) [ 13.489216][ T348] ? br_multicast_flood (??:?) bridge [ 13.489229][ T348] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 13.489230][ T348] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 13.489231][ T348] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 13.489236][ T348] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge [ 13.489246][ T348] br_init_port (net/bridge/br_stp_if.c:39) bridge [ 13.489254][ T348] new_nbp (net/bridge/br_if.c:449) bridge [ 13.489263][ T348] br_add_if (net/bridge/br_if.c:592) bridge [ 13.489270][ T348] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 13.489275][ T348] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 13.489277][ T348] ? __kernel_text_address (kernel/extable.c:79) [ 13.489281][ T348] do_set_master (net/core/rtnetlink.c:3071) [ 13.489292][ T348] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 13.489295][ T348] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 13.489299][ T348] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 13.489301][ T348] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 13.489303][ T348] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 13.489308][ T348] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 13.489312][ T348] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 13.489314][ T348] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 13.489316][ T348] ? kasan_save_stack (mm/kasan/common.c:58) [ 13.489320][ T348] ? kasan_save_stack (mm/kasan/common.c:57) [ 13.489321][ T348] ? kasan_save_track (mm/kasan/common.c:78) [ 13.489324][ T348] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.489326][ T348] ? netlink_seq_next (net/netlink/af_netlink.c:2685) [ 13.489329][ T348] ? ___sys_sendmsg (net/socket.c:2757) [ 13.489334][ T348] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.489336][ T348] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 13.489338][ T348] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.489340][ T348] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.489342][ T348] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.489344][ T348] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.489346][ T348] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 13.489350][ T348] ? __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) [ 13.489353][ T348] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 13.489355][ T348] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 13.489358][ T348] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 13.489360][ T348] ? nla_get_range_signed (lib/nlattr.c:270) [ 13.489365][ T348] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 13.489372][ T348] rtnl_newlink (net/core/rtnetlink.c:4215) [ 13.489377][ T348] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.489379][ T348] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.489383][ T348] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.489385][ T348] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 13.489387][ T348] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.489389][ T348] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.489393][ T348] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.489395][ T348] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 13.489398][ T348] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 13.489399][ T348] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.489403][ T348] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.489405][ T348] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 13.489409][ T348] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 13.489411][ T348] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 13.489413][ T348] ? netlink_ack (./include/linux/skbuff.h:2718) [ 13.489419][ T348] ? 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)) [ 13.489421][ T348] ? 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)) [ 13.489425][ T348] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 13.489428][ T348] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 13.489431][ T348] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.489435][ T348] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 13.489439][ T348] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 13.489442][ T348] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 13.489448][ T348] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 13.489450][ T348] ? copy_msghdr_from_user (net/socket.c:2650) [ 13.489452][ T348] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 13.489454][ T348] ? move_addr_to_kernel (net/socket.c:258) [ 13.489461][ T348] ___sys_sendmsg (net/socket.c:2767) [ 13.489464][ T348] ? copy_msghdr_from_user (net/socket.c:2619) [ 13.489479][ T348] __sys_sendmsg (net/socket.c:2799) [ 13.489482][ T348] ? __sys_sendmsg_sock (net/socket.c:2780) [ 13.489488][ T348] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.489491][ T348] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 13.489494][ T348] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 13.489497][ T348] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 13.489499][ T348] RIP: 0033:0x7f706467954e [ 13.489503][ T348] 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 [ 13.489504][ T348] RSP: 002b:00007fffa82f6420 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 13.489507][ T348] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f706467954e [ 13.489509][ T348] RDX: 0000000000000000 RSI: 00007fffa82f64d0 RDI: 0000000000000005 [ 13.489509][ T348] RBP: 00007fffa82f6430 R08: 0000000000000000 R09: 0000000000000000 [ 13.489510][ T348] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90dd24 [ 13.489511][ T348] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffa82f6b90 | [ 22.806999][ T70] softirqs last disabled at (22332): vxlan_flush (./include/linux/spinlock.h:353 drivers/net/vxlan/vxlan_core.c:3094) vxlan | [ 22.807003][ T70] Preemption disabled at: | [ 22.807004][ T70] vprintk_emit (kernel/printk/printk.c:2471) | [ 22.807013][ T70] Tainted: [W]=WARN [ 22.807014][ T70] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 22.807016][ T70] Workqueue: netns cleanup_net [ 22.807019][ T70] Call Trace: [ 22.807020][ T70] [ 22.807022][ T70] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 22.807029][ T70] ? vprintk_emit (kernel/printk/printk.c:2471) [ 22.807031][ T70] __might_resched.cold (kernel/sched/core.c:9234) [ 22.807036][ T70] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 22.807040][ T70] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 22.807046][ T70] __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)) [ 22.807048][ T70] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 22.807054][ T70] ? 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) [ 22.807057][ T70] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 22.807060][ T70] put_chars (drivers/char/virtio_console.c:1176) [ 22.807063][ T70] ? __send_to_port (drivers/char/virtio_console.c:654) [ 22.807067][ T70] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 22.807072][ T70] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 22.807074][ T70] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.807076][ T70] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.807081][ T70] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 22.807082][ T70] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 22.807086][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.807090][ T70] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 22.807094][ T70] console_emit_next_record (kernel/printk/printk.c:3183) [ 22.807098][ T70] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 22.807100][ T70] ? 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)) [ 22.807104][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.807106][ T70] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 22.807110][ T70] console_flush_one_record (kernel/printk/printk.c:3268) [ 22.807115][ T70] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 22.807117][ T70] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.807122][ T70] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 22.807125][ T70] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 22.807127][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.807130][ T70] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 22.807134][ T70] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 22.807136][ T70] ? vprintk_emit (kernel/printk/printk.c:2478) [ 22.807139][ T70] vprintk_emit (kernel/printk/printk.c:2479) [ 22.807143][ T70] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 22.807145][ T70] ? process_one_work (kernel/workqueue.c:3387) [ 22.807147][ T70] ? kthread (kernel/kthread.c:436) [ 22.807149][ T70] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 22.807152][ T70] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 22.807157][ T70] _printk (kernel/printk/printk.c:2504) [ 22.807161][ T70] ? snapshot_read.cold (user.c:?) [ 22.807166][ T70] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 22.807169][ T70] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 22.807173][ T70] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 22.807176][ T70] ? netdev_notice (net/core/dev.c:13194) [ 22.807180][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.807182][ T70] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 22.807185][ T70] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 22.807187][ T70] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 22.807189][ T70] ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65) [ 22.807193][ T70] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 22.807198][ T70] dev_set_allmulti (net/core/dev_api.c:315) [ 22.807202][ T70] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge [ 22.807226][ T70] br_dev_delete (net/bridge/br_if.c:387) bridge [ 22.807236][ T70] br_net_exit_rtnl (net/bridge/br.c:414) bridge [ 22.807244][ T70] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 22.807248][ T70] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 22.807253][ T70] ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098) [ 22.807254][ T70] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 22.807258][ T70] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 22.807263][ T70] cleanup_net (net/core/net_namespace.c:706) [ 22.807266][ T70] ? net_passive_dec (./include/linux/llist.h:241) [ 22.807270][ T70] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 22.807272][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.807276][ T70] process_one_work (kernel/workqueue.c:3387) [ 22.807283][ T70] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 22.807286][ T70] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 22.807294][ T70] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 22.807299][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 22.807302][ T70] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 22.807306][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 22.807311][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 22.807314][ T70] kthread (kernel/kthread.c:436) [ 22.807316][ T70] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 22.807320][ T70] ? kthread_affine_preferred (kernel/kthread.c:857) [ 22.807325][ T70] ret_from_fork (arch/x86/kernel/process.c:158) [ 22.807329][ T70] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 22.807333][ T70] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 22.807337][ T70] ? kthread_affine_preferred (kernel/kthread.c:857) [ 22.807340][ T70] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 23.807510][ T479] softirqs last disabled at (21278): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge | [ 23.807518][ T479] Preemption disabled at: | [ 23.807518][ T479] 0x0 | [ 23.807528][ T479] Tainted: [W]=WARN [ 23.807529][ T479] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 23.807531][ T479] Call Trace: [ 23.807532][ T479] [ 23.807534][ T479] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 23.807541][ T479] __might_resched.cold (kernel/sched/core.c:9234) [ 23.807545][ T479] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 23.807550][ T479] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 23.807555][ T479] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 23.807558][ T479] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.807564][ T479] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 23.807566][ T479] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.807569][ T479] put_chars (drivers/char/virtio_console.c:1176) [ 23.807572][ T479] ? __send_to_port (drivers/char/virtio_console.c:654) [ 23.807574][ T479] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 23.807579][ T479] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 23.807581][ T479] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 23.807585][ T479] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 23.807588][ T479] ? mark_usage (kernel/locking/lockdep.c:4690) [ 23.807590][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.807592][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.807596][ T479] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 23.807597][ T479] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.807601][ T479] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.807605][ T479] console_emit_next_record (kernel/printk/printk.c:3183) [ 23.807609][ T479] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 23.807611][ T479] ? 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)) [ 23.807614][ T479] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.807617][ T479] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.807621][ T479] console_flush_one_record (kernel/printk/printk.c:3268) [ 23.807625][ T479] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 23.807627][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.807632][ T479] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 23.807635][ T479] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 23.807637][ T479] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.807639][ T479] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 23.807643][ T479] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 23.807645][ T479] ? vprintk_emit (kernel/printk/printk.c:2478) [ 23.807648][ T479] vprintk_emit (kernel/printk/printk.c:2479) [ 23.807652][ T479] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 23.807654][ T479] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 23.807657][ T479] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 23.807659][ T479] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 23.807663][ T479] _printk (kernel/printk/printk.c:2504) [ 23.807666][ T479] ? snapshot_read.cold (user.c:?) [ 23.807674][ T479] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge [ 23.807685][ T479] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge [ 23.807695][ T479] br_device_event (net/bridge/br.c:111) bridge [ 23.807703][ T479] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 23.807707][ T479] ? _sub_I_65535_1+0x4d0/0x4d0 stp [ 23.807713][ T479] notifier_call_chain (kernel/notifier.c:85) [ 23.807719][ T479] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 23.807724][ T479] ? netif_change_name (net/core/dev.c:1517) [ 23.807728][ T479] ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1)) [ 23.807731][ T479] ? __kernel_text_address (kernel/extable.c:79) [ 23.807733][ T479] ? write_profile (profile.c:?) [ 23.807736][ T479] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 23.807741][ T479] netif_change_flags (net/core/dev.c:9882) [ 23.807745][ T479] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 23.807749][ T479] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 23.807751][ T479] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 23.807752][ T479] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 23.807754][ T479] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 23.807757][ T479] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 23.807760][ T479] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 23.807762][ T479] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 23.807765][ T479] ? kasan_save_stack (mm/kasan/common.c:58) [ 23.807768][ T479] ? kasan_save_stack (mm/kasan/common.c:57) [ 23.807769][ T479] ? kasan_save_track (mm/kasan/common.c:78) [ 23.807772][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.807774][ T479] ? netlink_seq_next (net/netlink/af_netlink.c:2685) [ 23.807778][ T479] ? ___sys_sendmsg (net/socket.c:2757) [ 23.807783][ T479] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.807785][ T479] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 23.807788][ T479] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.807790][ T479] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.807792][ T479] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.807793][ T479] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.807796][ T479] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 23.807800][ T479] ? __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) [ 23.807802][ T479] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 23.807804][ T479] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 23.807807][ T479] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 23.807813][ T479] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 23.807818][ T479] rtnl_newlink (net/core/rtnetlink.c:4215) [ 23.807824][ T479] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 23.807826][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.807830][ T479] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.807832][ T479] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 23.807834][ T479] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 23.807836][ T479] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 23.807840][ T479] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 23.807842][ T479] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 23.807845][ T479] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 23.807846][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.807851][ T479] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.807853][ T479] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 23.807856][ T479] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 23.807858][ T479] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 23.807861][ T479] ? netlink_ack (./include/linux/skbuff.h:2718) [ 23.807868][ T479] ? 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)) [ 23.807869][ T479] ? 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)) [ 23.807873][ T479] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 23.807877][ T479] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 23.807880][ T479] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.807884][ T479] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 23.807888][ T479] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 23.807892][ T479] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 23.807898][ T479] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 23.807900][ T479] ? copy_msghdr_from_user (net/socket.c:2650) [ 23.807903][ T479] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 23.807904][ T479] ? move_addr_to_kernel (net/socket.c:258) [ 23.807912][ T479] ___sys_sendmsg (net/socket.c:2767) [ 23.807915][ T479] ? copy_msghdr_from_user (net/socket.c:2619) [ 23.807931][ T479] __sys_sendmsg (net/socket.c:2799) [ 23.807934][ T479] ? __sys_sendmsg_sock (net/socket.c:2780) [ 23.807940][ T479] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.807944][ T479] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 23.807946][ T479] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 23.807950][ T479] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 23.807952][ T479] RIP: 0033:0x7fede0c1054e [ 23.807955][ T479] 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 [ 23.807956][ T479] RSP: 002b:00007ffcd820f340 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 23.807959][ T479] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fede0c1054e [ 23.807961][ T479] RDX: 0000000000000000 RSI: 00007ffcd820f3f0 RDI: 0000000000000005 [ 23.807962][ T479] RBP: 00007ffcd820f350 R08: 0000000000000000 R09: 0000000000000000 [ 23.807962][ T479] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90dd2f Finger prints: br_device_event:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print __alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars vxlan_flush:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print