====================================== | [ 9.972531][ T187] softirqs last disabled at (38307): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.972533][ T187] Preemption disabled at: | [ 9.972534][ T187] 0x0 | [ 9.972544][ T187] Tainted: [W]=WARN [ 9.972544][ T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.972546][ T187] Call Trace: [ 9.972547][ T187] [ 9.972549][ T187] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.972556][ T187] __might_resched.cold (kernel/sched/core.c:9234) [ 9.972561][ T187] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.972566][ T187] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.972572][ T187] __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)) [ 9.972574][ T187] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.972580][ T187] ? 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) [ 9.972583][ T187] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.972586][ T187] put_chars (drivers/char/virtio_console.c:1176) [ 9.972589][ T187] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.972590][ T187] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.972595][ T187] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.972600][ T187] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.972607][ T187] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.972609][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.972611][ T187] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.972615][ T187] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.972619][ T187] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.972621][ T187] ? 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)) [ 9.972624][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.972627][ T187] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.972630][ T187] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.972635][ T187] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.972636][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.972642][ T187] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.972644][ T187] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.972646][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.972649][ T187] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.972652][ T187] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.972654][ T187] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.972657][ T187] vprintk_emit (kernel/printk/printk.c:2479) [ 9.972661][ T187] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.972664][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.972668][ T187] _printk (kernel/printk/printk.c:2504) [ 9.972672][ T187] ? snapshot_read.cold (user.c:?) [ 9.972675][ T187] ? 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) [ 9.972677][ T187] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.972681][ T187] ? 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) [ 9.972684][ T187] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.972688][ T187] ? exit_notify (kernel/exit.c:780) [ 9.972690][ T187] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.972693][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.972697][ T187] do_group_exit (kernel/exit.c:1151) [ 9.972700][ T187] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.972701][ T187] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.972704][ T187] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.972707][ T187] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.972710][ T187] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.972712][ T187] RIP: 0033:0x7fd18db701b8 [ 9.972715][ T187] Code: Unable to access opcode bytes at 0x7fd18db7018e. Code starting with the faulting instruction =========================================== [ 9.972716][ T187] RSP: 002b:00007ffd24758408 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.972718][ T187] RAX: ffffffffffffffda RBX: 00007fd18dca0f88 RCX: 00007fd18db701b8 [ 9.972720][ T187] RDX: 00007fd18d8bafc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.972721][ T187] RBP: 00007ffd24758460 R08: 0000000000000000 R09: 0000000000008010 [ 9.972721][ T187] R10: 00007ffd24758220 R11: 0000000000000246 R12: 0000000000000001 [ 9.972722][ T187] R13: 0000000000000000 R14: 00007fd18dc9f680 R15: 00007fd18dca0fa0 | [ 11.844931][ T265] softirqs last disabled at (14586): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 11.844934][ T265] Preemption disabled at: | [ 11.844934][ T265] vprintk_emit (kernel/printk/printk.c:2471) | [ 11.844944][ T265] Tainted: [W]=WARN [ 11.844945][ T265] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.844947][ T265] Call Trace: [ 11.844949][ T265] [ 11.844950][ T265] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.844956][ T265] ? vprintk_emit (kernel/printk/printk.c:2471) [ 11.844959][ T265] __might_resched.cold (kernel/sched/core.c:9234) [ 11.844964][ T265] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.844968][ T265] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.844974][ T265] __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)) [ 11.844976][ T265] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.844982][ T265] ? 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) [ 11.844984][ T265] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.844988][ T265] put_chars (drivers/char/virtio_console.c:1176) [ 11.844991][ T265] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.844995][ T265] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 11.844999][ T265] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.845002][ T265] ? mark_usage (kernel/locking/lockdep.c:4690) [ 11.845004][ T265] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.845006][ T265] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.845010][ T265] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.845012][ T265] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 11.845015][ T265] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.845019][ T265] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.845023][ T265] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.845027][ T265] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.845029][ T265] ? 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)) [ 11.845032][ T265] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.845034][ T265] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.845038][ T265] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.845043][ T265] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.845045][ T265] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.845050][ T265] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.845053][ T265] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.845055][ T265] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.845057][ T265] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 11.845061][ T265] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.845063][ T265] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.845066][ T265] vprintk_emit (kernel/printk/printk.c:2479) [ 11.845070][ T265] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.845072][ T265] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.845074][ T265] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 11.845079][ T265] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 11.845082][ T265] _printk (kernel/printk/printk.c:2504) [ 11.845086][ T265] ? snapshot_read.cold (user.c:?) [ 11.845090][ T265] ? br_multicast_flood (??:?) bridge [ 11.845103][ T265] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 11.845105][ T265] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 11.845106][ T265] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.845110][ T265] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge [ 11.845121][ T265] br_init_port (net/bridge/br_stp_if.c:39) bridge [ 11.845129][ T265] new_nbp (net/bridge/br_if.c:449) bridge [ 11.845138][ T265] br_add_if (net/bridge/br_if.c:592) bridge [ 11.845146][ T265] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 11.845150][ T265] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 11.845153][ T265] ? __kernel_text_address (kernel/extable.c:79) [ 11.845157][ T265] do_set_master (net/core/rtnetlink.c:3071) [ 11.845162][ T265] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 11.845165][ T265] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 11.845168][ T265] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 11.845170][ T265] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 11.845172][ T265] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 11.845175][ T265] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.845178][ T265] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.845180][ T265] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.845183][ T265] ? kasan_save_stack (mm/kasan/common.c:58) [ 11.845186][ T265] ? kasan_save_stack (mm/kasan/common.c:57) [ 11.845188][ T265] ? kasan_save_track (mm/kasan/common.c:78) [ 11.845191][ T265] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.845193][ T265] ? netlink_seq_next (net/netlink/af_netlink.c:2685) [ 11.845195][ T265] ? ___sys_sendmsg (net/socket.c:2757) [ 11.845200][ T265] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.845202][ T265] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.845205][ T265] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.845207][ T265] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.845209][ T265] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.845211][ T265] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.845213][ T265] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 11.845217][ T265] ? __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) [ 11.845219][ T265] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 11.845221][ T265] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.845224][ T265] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 11.845226][ T265] ? nla_get_range_signed (lib/nlattr.c:270) [ 11.845231][ T265] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 11.845236][ T265] rtnl_newlink (net/core/rtnetlink.c:4215) [ 11.845241][ T265] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.845243][ T265] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.845248][ T265] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.845250][ T265] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.845252][ T265] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.845254][ T265] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.845258][ T265] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.845260][ T265] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.845263][ T265] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.845264][ T265] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.845269][ T265] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.845271][ T265] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.845274][ T265] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 11.845276][ T265] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.845279][ T265] ? netlink_ack (./include/linux/skbuff.h:2718) [ 11.845285][ T265] ? 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)) [ 11.845287][ T265] ? 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)) [ 11.845291][ T265] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 11.845295][ T265] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 11.845297][ T265] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.845302][ T265] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 11.845305][ T265] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 11.845309][ T265] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 11.845315][ T265] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 11.845317][ T265] ? copy_msghdr_from_user (net/socket.c:2650) [ 11.845319][ T265] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 11.845321][ T265] ? move_addr_to_kernel (net/socket.c:258) [ 11.845329][ T265] ___sys_sendmsg (net/socket.c:2767) [ 11.845331][ T265] ? copy_msghdr_from_user (net/socket.c:2619) [ 11.845350][ T265] __sys_sendmsg (net/socket.c:2799) [ 11.845353][ T265] ? __sys_sendmsg_sock (net/socket.c:2780) [ 11.845359][ T265] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.845363][ T265] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.845365][ T265] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.845368][ T265] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.845371][ T265] RIP: 0033:0x7fc21c51854e [ 11.845374][ T265] 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 [ 11.845377][ T265] RSP: 002b:00007ffd6e964770 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 11.845379][ T265] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fc21c51854e [ 11.845381][ T265] RDX: 0000000000000000 RSI: 00007ffd6e964820 RDI: 0000000000000005 [ 11.845382][ T265] RBP: 00007ffd6e964780 R08: 0000000000000000 R09: 0000000000000000 [ 11.845383][ T265] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91393f [ 11.845384][ T265] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd6e964ee0 | [ 13.207104][ T314] softirqs last disabled at (14354): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 13.207106][ T314] Preemption disabled at: | [ 13.207107][ T314] vprintk_emit (kernel/printk/printk.c:2471) | [ 13.207116][ T314] Tainted: [W]=WARN [ 13.207117][ T314] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.207118][ T314] Call Trace: [ 13.207120][ T314] [ 13.207122][ T314] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 13.207128][ T314] ? vprintk_emit (kernel/printk/printk.c:2471) [ 13.207130][ T314] __might_resched.cold (kernel/sched/core.c:9234) [ 13.207135][ T314] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 13.207139][ T314] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 13.207145][ T314] __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)) [ 13.207147][ T314] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.207153][ T314] ? 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) [ 13.207156][ T314] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.207159][ T314] put_chars (drivers/char/virtio_console.c:1176) [ 13.207161][ T314] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 13.207163][ T314] ? __send_to_port (drivers/char/virtio_console.c:654) [ 13.207166][ T314] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 13.207170][ T314] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 13.207173][ T314] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 13.207176][ T314] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 13.207179][ T314] ? mark_usage (kernel/locking/lockdep.c:4690) [ 13.207181][ T314] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.207183][ T314] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.207187][ T314] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 13.207189][ T314] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 13.207192][ T314] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.207195][ T314] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.207199][ T314] console_emit_next_record (kernel/printk/printk.c:3183) [ 13.207203][ T314] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 13.207205][ T314] ? 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)) [ 13.207208][ T314] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.207210][ T314] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.207214][ T314] console_flush_one_record (kernel/printk/printk.c:3268) [ 13.207219][ T314] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 13.207220][ T314] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.207226][ T314] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 13.207229][ T314] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 13.207230][ T314] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.207233][ T314] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 13.207237][ T314] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 13.207238][ T314] ? vprintk_emit (kernel/printk/printk.c:2478) [ 13.207242][ T314] vprintk_emit (kernel/printk/printk.c:2479) [ 13.207246][ T314] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 13.207248][ T314] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.207251][ T314] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 13.207255][ T314] _printk (kernel/printk/printk.c:2504) [ 13.207259][ T314] ? snapshot_read.cold (user.c:?) [ 13.207263][ T314] ? br_multicast_flood (??:?) bridge [ 13.207276][ T314] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 13.207277][ T314] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 13.207278][ T314] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 13.207283][ T314] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge [ 13.207293][ T314] br_init_port (net/bridge/br_stp_if.c:39) bridge [ 13.207302][ T314] new_nbp (net/bridge/br_if.c:449) bridge [ 13.207311][ T314] br_add_if (net/bridge/br_if.c:592) bridge [ 13.207319][ T314] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 13.207323][ T314] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 13.207326][ T314] ? __kernel_text_address (kernel/extable.c:79) [ 13.207330][ T314] do_set_master (net/core/rtnetlink.c:3071) [ 13.207335][ T314] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 13.207338][ T314] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 13.207343][ T314] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 13.207345][ T314] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 13.207347][ T314] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 13.207350][ T314] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 13.207353][ T314] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 13.207355][ T314] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 13.207358][ T314] ? kasan_save_stack (mm/kasan/common.c:58) [ 13.207361][ T314] ? kasan_save_stack (mm/kasan/common.c:57) [ 13.207363][ T314] ? kasan_save_track (mm/kasan/common.c:78) [ 13.207365][ T314] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.207367][ T314] ? netlink_seq_next (net/netlink/af_netlink.c:2685) [ 13.207371][ T314] ? ___sys_sendmsg (net/socket.c:2757) [ 13.207375][ T314] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.207377][ T314] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 13.207380][ T314] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.207382][ T314] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.207384][ T314] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.207385][ T314] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.207388][ T314] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 13.207392][ T314] ? __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) [ 13.207395][ T314] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 13.207397][ T314] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 13.207400][ T314] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 13.207402][ T314] ? nla_get_range_signed (lib/nlattr.c:270) [ 13.207407][ T314] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 13.207412][ T314] rtnl_newlink (net/core/rtnetlink.c:4215) [ 13.207418][ T314] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.207420][ T314] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.207424][ T314] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.207426][ T314] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 13.207428][ T314] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.207430][ T314] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.207434][ T314] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.207436][ T314] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 13.207439][ T314] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 13.207440][ T314] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.207445][ T314] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.207447][ T314] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 13.207450][ T314] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 13.207452][ T314] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 13.207455][ T314] ? netlink_ack (./include/linux/skbuff.h:2718) [ 13.207461][ T314] ? 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)) [ 13.207463][ T314] ? 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)) [ 13.207467][ T314] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 13.207471][ T314] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 13.207474][ T314] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.207478][ T314] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 13.207482][ T314] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 13.207485][ T314] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 13.207491][ T314] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 13.207493][ T314] ? copy_msghdr_from_user (net/socket.c:2650) [ 13.207495][ T314] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 13.207497][ T314] ? move_addr_to_kernel (net/socket.c:258) [ 13.207505][ T314] ___sys_sendmsg (net/socket.c:2767) [ 13.207507][ T314] ? copy_msghdr_from_user (net/socket.c:2619) [ 13.207523][ T314] __sys_sendmsg (net/socket.c:2799) [ 13.207526][ T314] ? __sys_sendmsg_sock (net/socket.c:2780) [ 13.207532][ T314] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.207536][ T314] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 13.207538][ T314] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 13.207541][ T314] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 13.207544][ T314] RIP: 0033:0x7fb342d1254e [ 13.207547][ T314] 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 [ 13.207549][ T314] RSP: 002b:00007ffcbeb144e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 13.207552][ T314] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fb342d1254e [ 13.207553][ T314] RDX: 0000000000000000 RSI: 00007ffcbeb14590 RDI: 0000000000000005 [ 13.207554][ T314] RBP: 00007ffcbeb144f0 R08: 0000000000000000 R09: 0000000000000000 [ 13.207555][ T314] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a913940 [ 13.207556][ T314] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcbeb14c50 | [ 14.218386][ T351] softirqs last disabled at (20142): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 14.218389][ T351] Preemption disabled at: | [ 14.218389][ T351] vprintk_emit (kernel/printk/printk.c:2471) | [ 14.218399][ T351] Tainted: [W]=WARN [ 14.218399][ T351] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.218401][ T351] Call Trace: [ 14.218403][ T351] [ 14.218404][ T351] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 14.218410][ T351] ? vprintk_emit (kernel/printk/printk.c:2471) [ 14.218412][ T351] __might_resched.cold (kernel/sched/core.c:9234) [ 14.218417][ T351] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 14.218422][ T351] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 14.218427][ T351] __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)) [ 14.218429][ T351] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 14.218435][ T351] ? 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) [ 14.218438][ T351] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 14.218441][ T351] put_chars (drivers/char/virtio_console.c:1176) [ 14.218443][ T351] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 14.218445][ T351] ? __send_to_port (drivers/char/virtio_console.c:654) [ 14.218448][ T351] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 14.218453][ T351] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 14.218455][ T351] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 14.218459][ T351] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 14.218462][ T351] ? mark_usage (kernel/locking/lockdep.c:4690) [ 14.218464][ T351] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.218466][ T351] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.218469][ T351] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 14.218472][ T351] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 14.218475][ T351] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.218477][ T351] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.218481][ T351] console_emit_next_record (kernel/printk/printk.c:3183) [ 14.218485][ T351] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 14.218487][ T351] ? 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)) [ 14.218490][ T351] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.218492][ T351] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.218496][ T351] console_flush_one_record (kernel/printk/printk.c:3268) [ 14.218500][ T351] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 14.218502][ T351] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.218508][ T351] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 14.218510][ T351] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 14.218512][ T351] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.218515][ T351] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 14.218518][ T351] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 14.218520][ T351] ? vprintk_emit (kernel/printk/printk.c:2478) [ 14.218523][ T351] vprintk_emit (kernel/printk/printk.c:2479) [ 14.218527][ T351] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 14.218530][ T351] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 14.218533][ T351] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 14.218536][ T351] _printk (kernel/printk/printk.c:2504) [ 14.218540][ T351] ? snapshot_read.cold (user.c:?) [ 14.218544][ T351] ? br_multicast_flood (??:?) bridge [ 14.218558][ T351] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 14.218559][ T351] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 14.218561][ T351] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 14.218565][ T351] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge [ 14.218576][ T351] br_init_port (net/bridge/br_stp_if.c:39) bridge [ 14.218585][ T351] new_nbp (net/bridge/br_if.c:449) bridge [ 14.218594][ T351] br_add_if (net/bridge/br_if.c:592) bridge [ 14.218602][ T351] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 14.218606][ T351] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 14.218609][ T351] ? __kernel_text_address (kernel/extable.c:79) [ 14.218613][ T351] do_set_master (net/core/rtnetlink.c:3071) [ 14.218618][ T351] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 14.218621][ T351] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 14.218624][ T351] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 14.218626][ T351] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 14.218627][ T351] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 14.218631][ T351] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 14.218634][ T351] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 14.218636][ T351] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 14.218639][ T351] ? kasan_save_stack (mm/kasan/common.c:58) [ 14.218642][ T351] ? kasan_save_stack (mm/kasan/common.c:57) [ 14.218644][ T351] ? kasan_save_track (mm/kasan/common.c:78) [ 14.218647][ T351] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.218649][ T351] ? netlink_seq_next (net/netlink/af_netlink.c:2685) [ 14.218652][ T351] ? ___sys_sendmsg (net/socket.c:2757) [ 14.218656][ T351] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.218658][ T351] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 14.218661][ T351] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.218663][ T351] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.218665][ T351] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.218666][ T351] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.218669][ T351] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 14.218673][ T351] ? __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) [ 14.218676][ T351] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 14.218678][ T351] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 14.218682][ T351] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 14.218683][ T351] ? nla_get_range_signed (lib/nlattr.c:270) [ 14.218688][ T351] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 14.218693][ T351] rtnl_newlink (net/core/rtnetlink.c:4215) [ 14.218699][ T351] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 14.218701][ T351] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.218705][ T351] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.218707][ T351] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 14.218709][ T351] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 14.218711][ T351] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 14.218715][ T351] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 14.218717][ T351] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 14.218720][ T351] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 14.218721][ T351] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.218726][ T351] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.218727][ T351] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 14.218731][ T351] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 14.218733][ T351] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 14.218736][ T351] ? netlink_ack (./include/linux/skbuff.h:2718) [ 14.218742][ T351] ? 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)) [ 14.218743][ T351] ? 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)) [ 14.218754][ T351] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 14.218757][ T351] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 14.218760][ T351] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.218764][ T351] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 14.218768][ T351] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 14.218772][ T351] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 14.218778][ T351] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 14.218780][ T351] ? copy_msghdr_from_user (net/socket.c:2650) [ 14.218782][ T351] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 14.218784][ T351] ? move_addr_to_kernel (net/socket.c:258) [ 14.218791][ T351] ___sys_sendmsg (net/socket.c:2767) [ 14.218794][ T351] ? copy_msghdr_from_user (net/socket.c:2619) [ 14.218810][ T351] __sys_sendmsg (net/socket.c:2799) [ 14.218813][ T351] ? __sys_sendmsg_sock (net/socket.c:2780) [ 14.218819][ T351] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.218823][ T351] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 14.218825][ T351] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 14.218828][ T351] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 14.218830][ T351] RIP: 0033:0x7f1d14c8654e [ 14.218834][ T351] 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 [ 14.218836][ T351] RSP: 002b:00007ffd979da970 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 14.218839][ T351] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f1d14c8654e [ 14.218840][ T351] RDX: 0000000000000000 RSI: 00007ffd979daa20 RDI: 0000000000000005 [ 14.218841][ T351] RBP: 00007ffd979da980 R08: 0000000000000000 R09: 0000000000000000 [ 14.218842][ T351] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a913941 [ 14.218843][ T351] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd979db0e0 | [ 23.792868][ T12] softirqs last disabled at (22786): vxlan_flush (./include/linux/spinlock.h:353 drivers/net/vxlan/vxlan_core.c:3094) vxlan | [ 23.792873][ T12] Preemption disabled at: | [ 23.792873][ T12] vprintk_emit (kernel/printk/printk.c:2471) | [ 23.792883][ T12] Tainted: [W]=WARN [ 23.792883][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 23.792885][ T12] Workqueue: netns cleanup_net [ 23.792889][ T12] Call Trace: [ 23.792890][ T12] [ 23.792892][ T12] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 23.792898][ T12] ? vprintk_emit (kernel/printk/printk.c:2471) [ 23.792900][ T12] __might_resched.cold (kernel/sched/core.c:9234) [ 23.792905][ T12] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 23.792909][ T12] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 23.792914][ T12] __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)) [ 23.792917][ T12] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.792922][ T12] ? 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) [ 23.792925][ T12] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.792928][ T12] put_chars (drivers/char/virtio_console.c:1176) [ 23.792931][ T12] ? __send_to_port (drivers/char/virtio_console.c:654) [ 23.792935][ T12] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 23.792940][ T12] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 23.792942][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.792944][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.792949][ T12] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 23.792950][ T12] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 23.792953][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.792958][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.792962][ T12] console_emit_next_record (kernel/printk/printk.c:3183) [ 23.792966][ T12] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 23.792968][ T12] ? 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)) [ 23.792971][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.792973][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.792978][ T12] console_flush_one_record (kernel/printk/printk.c:3268) [ 23.792982][ T12] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 23.792984][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.792989][ T12] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 23.792992][ T12] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 23.792994][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.792996][ T12] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 23.793000][ T12] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 23.793002][ T12] ? vprintk_emit (kernel/printk/printk.c:2478) [ 23.793005][ T12] vprintk_emit (kernel/printk/printk.c:2479) [ 23.793009][ T12] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 23.793011][ T12] ? process_one_work (kernel/workqueue.c:3387) [ 23.793013][ T12] ? kthread (kernel/kthread.c:436) [ 23.793015][ T12] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 23.793018][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 23.793023][ T12] _printk (kernel/printk/printk.c:2504) [ 23.793027][ T12] ? snapshot_read.cold (user.c:?) [ 23.793031][ T12] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 23.793035][ T12] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 23.793039][ T12] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 23.793041][ T12] ? netdev_notice (net/core/dev.c:13194) [ 23.793045][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.793048][ T12] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 23.793051][ T12] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 23.793052][ T12] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 23.793054][ T12] ? 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) [ 23.793058][ T12] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 23.793063][ T12] dev_set_allmulti (net/core/dev_api.c:315) [ 23.793067][ T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge [ 23.793081][ T12] br_dev_delete (net/bridge/br_if.c:387) bridge [ 23.793089][ T12] br_net_exit_rtnl (net/bridge/br.c:414) bridge [ 23.793098][ T12] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 23.793102][ T12] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 23.793106][ T12] ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098) [ 23.793107][ T12] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 23.793111][ T12] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 23.793116][ T12] cleanup_net (net/core/net_namespace.c:706) [ 23.793119][ T12] ? net_passive_dec (./include/linux/llist.h:241) [ 23.793123][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.793125][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.793129][ T12] process_one_work (kernel/workqueue.c:3387) [ 23.793136][ T12] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 23.793139][ T12] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.793146][ T12] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 23.793154][ T12] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 23.793156][ T12] kthread (kernel/kthread.c:436) [ 23.793157][ T12] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 23.793160][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 23.793163][ T12] ret_from_fork (arch/x86/kernel/process.c:158) [ 23.793166][ T12] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 23.793169][ T12] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 23.793173][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 23.793175][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 24.892217][ T487] softirqs last disabled at (16148): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge | [ 24.892225][ T487] Preemption disabled at: | [ 24.892225][ T487] 0x0 | [ 24.892235][ T487] Tainted: [W]=WARN [ 24.892236][ T487] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 24.892238][ T487] Call Trace: [ 24.892239][ T487] [ 24.892241][ T487] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 24.892247][ T487] __might_resched.cold (kernel/sched/core.c:9234) [ 24.892252][ T487] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 24.892256][ T487] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 24.892262][ T487] __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)) [ 24.892264][ T487] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 24.892270][ T487] ? 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) [ 24.892272][ T487] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 24.892275][ T487] put_chars (drivers/char/virtio_console.c:1176) [ 24.892278][ T487] ? __send_to_port (drivers/char/virtio_console.c:654) [ 24.892281][ T487] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 24.892285][ T487] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 24.892288][ T487] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 24.892292][ T487] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 24.892295][ T487] ? mark_usage (kernel/locking/lockdep.c:4690) [ 24.892296][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.892298][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.892302][ T487] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 24.892303][ T487] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.892308][ T487] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.892312][ T487] console_emit_next_record (kernel/printk/printk.c:3183) [ 24.892316][ T487] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 24.892317][ T487] ? 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)) [ 24.892321][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.892323][ T487] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.892327][ T487] console_flush_one_record (kernel/printk/printk.c:3268) [ 24.892331][ T487] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 24.892333][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.892338][ T487] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 24.892343][ T487] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 24.892345][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.892348][ T487] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 24.892351][ T487] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 24.892353][ T487] ? vprintk_emit (kernel/printk/printk.c:2478) [ 24.892357][ T487] vprintk_emit (kernel/printk/printk.c:2479) [ 24.892361][ T487] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 24.892363][ T487] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 24.892365][ T487] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 24.892368][ T487] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 24.892371][ T487] _printk (kernel/printk/printk.c:2504) [ 24.892375][ T487] ? snapshot_read.cold (user.c:?) [ 24.892383][ T487] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge [ 24.892394][ T487] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge [ 24.892403][ T487] br_device_event (net/bridge/br.c:111) bridge [ 24.892411][ T487] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 24.892415][ T487] ? _sub_I_65535_1+0x4d0/0x4d0 stp [ 24.892422][ T487] notifier_call_chain (kernel/notifier.c:85) [ 24.892427][ T487] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 24.892432][ T487] ? netif_change_name (net/core/dev.c:1517) [ 24.892436][ T487] ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1)) [ 24.892439][ T487] ? __kernel_text_address (kernel/extable.c:79) [ 24.892441][ T487] ? write_profile (profile.c:?) [ 24.892444][ T487] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 24.892449][ T487] netif_change_flags (net/core/dev.c:9882) [ 24.892453][ T487] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 24.892457][ T487] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 24.892459][ T487] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 24.892460][ T487] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 24.892462][ T487] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 24.892465][ T487] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 24.892468][ T487] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 24.892470][ T487] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 24.892473][ T487] ? kasan_save_stack (mm/kasan/common.c:58) [ 24.892476][ T487] ? kasan_save_stack (mm/kasan/common.c:57) [ 24.892478][ T487] ? kasan_save_track (mm/kasan/common.c:78) [ 24.892480][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.892482][ T487] ? netlink_seq_next (net/netlink/af_netlink.c:2685) [ 24.892485][ T487] ? ___sys_sendmsg (net/socket.c:2757) [ 24.892490][ T487] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.892492][ T487] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 24.892495][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.892497][ T487] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.892499][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.892500][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.892503][ T487] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 24.892507][ T487] ? __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) [ 24.892509][ T487] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 24.892511][ T487] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 24.892514][ T487] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 24.892519][ T487] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 24.892525][ T487] rtnl_newlink (net/core/rtnetlink.c:4215) [ 24.892530][ T487] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 24.892532][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.892536][ T487] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.892538][ T487] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 24.892540][ T487] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 24.892542][ T487] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 24.892546][ T487] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 24.892548][ T487] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 24.892551][ T487] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 24.892553][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.892557][ T487] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.892559][ T487] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 24.892562][ T487] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 24.892565][ T487] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 24.892568][ T487] ? netlink_ack (./include/linux/skbuff.h:2718) [ 24.892575][ T487] ? 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)) [ 24.892576][ T487] ? 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)) [ 24.892581][ T487] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 24.892584][ T487] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 24.892587][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.892591][ T487] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 24.892595][ T487] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 24.892599][ T487] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 24.892605][ T487] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 24.892607][ T487] ? copy_msghdr_from_user (net/socket.c:2650) [ 24.892609][ T487] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 24.892611][ T487] ? move_addr_to_kernel (net/socket.c:258) [ 24.892618][ T487] ___sys_sendmsg (net/socket.c:2767) [ 24.892621][ T487] ? copy_msghdr_from_user (net/socket.c:2619) [ 24.892637][ T487] __sys_sendmsg (net/socket.c:2799) [ 24.892640][ T487] ? __sys_sendmsg_sock (net/socket.c:2780) [ 24.892646][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.892650][ T487] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 24.892653][ T487] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 24.892656][ T487] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 24.892658][ T487] RIP: 0033:0x7fa63305854e [ 24.892660][ T487] 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 [ 24.892662][ T487] RSP: 002b:00007fff543c99e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 24.892665][ T487] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa63305854e [ 24.892666][ T487] RDX: 0000000000000000 RSI: 00007fff543c9a90 RDI: 0000000000000005 [ 24.892667][ T487] RBP: 00007fff543c99f0 R08: 0000000000000000 R09: 0000000000000000 [ 24.892668][ T487] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91394c 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