====================================== | [ 11.034178][ T236] softirqs last disabled at (14478): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 11.034180][ T236] Preemption disabled at: | [ 11.034181][ T236] vprintk_emit (kernel/printk/printk.c:2471) | [ 11.034190][ T236] Tainted: [W]=WARN [ 11.034191][ T236] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.034193][ T236] Call Trace: [ 11.034194][ T236] [ 11.034196][ T236] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.034202][ T236] ? vprintk_emit (kernel/printk/printk.c:2471) [ 11.034204][ T236] __might_resched.cold (kernel/sched/core.c:9234) [ 11.034208][ T236] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.034212][ T236] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.034216][ T236] __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)) [ 11.034218][ T236] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.034225][ T236] ? 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) [ 11.034228][ T236] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.034232][ T236] put_chars (drivers/char/virtio_console.c:1176) [ 11.034234][ T236] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.034236][ T236] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 11.034242][ T236] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.034250][ T236] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.034252][ T236] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.034255][ T236] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.034259][ T236] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.034262][ T236] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.034264][ T236] ? 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)) [ 11.034267][ T236] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.034269][ T236] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.034273][ T236] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.034277][ T236] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.034279][ T236] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.034284][ T236] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.034287][ T236] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.034289][ T236] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.034291][ T236] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 11.034294][ T236] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.034296][ T236] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.034299][ T236] vprintk_emit (kernel/printk/printk.c:2479) [ 11.034301][ T236] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.034303][ T236] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.034305][ T236] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 11.034309][ T236] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 11.034313][ T236] _printk (kernel/printk/printk.c:2504) [ 11.034316][ T236] ? snapshot_read.cold (user.c:?) [ 11.034319][ T236] ? br_multicast_flood (??:?) [ 11.034323][ T236] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 11.034324][ T236] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 11.034325][ T236] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.034329][ T236] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 11.034333][ T236] br_init_port (net/bridge/br_stp_if.c:39) [ 11.034335][ T236] new_nbp (net/bridge/br_if.c:449) [ 11.034339][ T236] br_add_if (net/bridge/br_if.c:592) [ 11.034341][ T236] ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062) [ 11.034348][ T236] do_set_master (net/core/rtnetlink.c:3071) [ 11.034351][ T236] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 11.034355][ T236] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 11.034358][ T236] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 11.034360][ T236] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 11.034362][ T236] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 11.034366][ T236] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.034368][ T236] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.034370][ T236] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.034372][ T236] ? kasan_save_stack (mm/kasan/common.c:58) [ 11.034374][ T236] ? kasan_save_stack (mm/kasan/common.c:57) [ 11.034375][ T236] ? kasan_save_track (mm/kasan/common.c:78) [ 11.034377][ T236] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 11.034379][ T236] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.034381][ T236] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 11.034383][ T236] ? ___sys_sendmsg (net/socket.c:2758) [ 11.034387][ T236] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.034389][ T236] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.034391][ T236] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.034393][ T236] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.034395][ T236] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.034396][ T236] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.034397][ T236] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 11.034404][ T236] ? __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) [ 11.034406][ T236] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 11.034408][ T236] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.034411][ T236] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 11.034412][ T236] ? nla_get_range_signed (lib/nlattr.c:270) [ 11.034417][ T236] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.034419][ T236] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 11.034425][ T236] rtnl_newlink (net/core/rtnetlink.c:4215) [ 11.034430][ T236] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.034432][ T236] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.034436][ T236] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.034438][ T236] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.034441][ T236] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.034442][ T236] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.034446][ T236] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.034448][ T236] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.034451][ T236] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.034452][ T236] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.034457][ T236] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.034459][ T236] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.034462][ T236] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 11.034465][ T236] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.034468][ T236] ? netlink_ack (./include/linux/skbuff.h:2718) [ 11.034475][ T236] ? 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)) [ 11.034486][ T236] ? 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)) [ 11.034491][ T236] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 11.034494][ T236] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 11.034497][ T236] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.034501][ T236] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 11.034505][ T236] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 11.034509][ T236] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.034510][ T236] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 11.034516][ T236] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 11.034519][ T236] ____sys_sendmsg (net/socket.c:2713) [ 11.034521][ T236] ? copy_msghdr_from_user (net/socket.c:2650) [ 11.034523][ T236] ? sock_write_iter (net/socket.c:1269) [ 11.034525][ T236] ? move_addr_to_kernel (net/socket.c:258) [ 11.034532][ T236] ___sys_sendmsg (net/socket.c:2767) [ 11.034535][ T236] ? copy_msghdr_from_user (net/socket.c:2619) [ 11.034551][ T236] __sys_sendmsg (net/socket.c:2799) [ 11.034553][ T236] ? __sys_sendmsg_sock (net/socket.c:2780) [ 11.034560][ T236] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.034563][ T236] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.034566][ T236] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.034568][ T236] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.034570][ T236] RIP: 0033:0x7f614b7c954e [ 11.034574][ T236] 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 [ 11.034576][ T236] RSP: 002b:00007fffdf452730 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 11.034579][ T236] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f614b7c954e [ 11.034580][ T236] RDX: 0000000000000000 RSI: 00007fffdf4527e0 RDI: 0000000000000005 [ 11.034581][ T236] RBP: 00007fffdf452740 R08: 0000000000000000 R09: 0000000000000000 [ 11.034582][ T236] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918682 [ 11.034582][ T236] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffdf452ea0 | [ 12.913115][ T387] softirqs last disabled at (14984): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 12.913117][ T387] Preemption disabled at: | [ 12.913118][ T387] 0x0 | [ 12.913128][ T387] Tainted: [W]=WARN [ 12.913129][ T387] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.913130][ T387] Call Trace: [ 12.913132][ T387] [ 12.913133][ T387] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.913140][ T387] __might_resched.cold (kernel/sched/core.c:9234) [ 12.913144][ T387] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.913148][ T387] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.913153][ T387] __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)) [ 12.913155][ T387] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.913161][ T387] ? 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) [ 12.913164][ T387] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.913167][ T387] put_chars (drivers/char/virtio_console.c:1176) [ 12.913170][ T387] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.913176][ T387] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.913183][ T387] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.913187][ T387] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.913191][ T387] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.913195][ T387] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.913197][ T387] ? 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)) [ 12.913200][ T387] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.913203][ T387] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.913207][ T387] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.913211][ T387] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.913213][ T387] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.913218][ T387] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.913221][ T387] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.913222][ T387] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.913224][ T387] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 12.913228][ T387] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.913230][ T387] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.913232][ T387] vprintk_emit (kernel/printk/printk.c:2479) [ 12.913236][ T387] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.913237][ T387] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 12.913239][ T387] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.913241][ T387] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.913245][ T387] _printk (kernel/printk/printk.c:2504) [ 12.913249][ T387] ? snapshot_read.cold (user.c:?) [ 12.913257][ T387] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 12.913261][ T387] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 12.913264][ T387] br_device_event (net/bridge/br.c:111) [ 12.913267][ T387] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 12.913271][ T387] ? packet_sendmsg_spkt (af_packet.c:?) [ 12.913276][ T387] notifier_call_chain (kernel/notifier.c:85) [ 12.913282][ T387] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 12.913287][ T387] ? netif_change_name (net/core/dev.c:1517) [ 12.913291][ T387] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 12.913294][ T387] ? __kernel_text_address (kernel/extable.c:79) [ 12.913297][ T387] ? write_profile (profile.c:?) [ 12.913301][ T387] netif_change_flags (net/core/dev.c:9882) [ 12.913305][ T387] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 12.913309][ T387] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 12.913311][ T387] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 12.913312][ T387] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 12.913314][ T387] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 12.913318][ T387] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.913319][ T387] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.913321][ T387] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.913324][ T387] ? kasan_save_stack (mm/kasan/common.c:58) [ 12.913326][ T387] ? kasan_save_stack (mm/kasan/common.c:57) [ 12.913327][ T387] ? kasan_save_track (mm/kasan/common.c:78) [ 12.913328][ T387] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 12.913331][ T387] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.913332][ T387] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 12.913336][ T387] ? ___sys_sendmsg (net/socket.c:2758) [ 12.913339][ T387] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.913341][ T387] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 12.913344][ T387] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.913345][ T387] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.913347][ T387] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.913348][ T387] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.913350][ T387] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 12.913352][ T387] ? __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) [ 12.913354][ T387] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 12.913356][ T387] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 12.913359][ T387] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 12.913362][ T387] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.913365][ T387] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 12.913370][ T387] rtnl_newlink (net/core/rtnetlink.c:4215) [ 12.913375][ T387] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.913377][ T387] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.913381][ T387] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.913383][ T387] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.913386][ T387] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.913387][ T387] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.913391][ T387] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.913393][ T387] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 12.913396][ T387] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 12.913398][ T387] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.913402][ T387] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.913404][ T387] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.913412][ T387] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 12.913416][ T387] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 12.913419][ T387] ? netlink_ack (./include/linux/skbuff.h:2718) [ 12.913425][ T387] ? 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)) [ 12.913427][ T387] ? 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)) [ 12.913431][ T387] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 12.913435][ T387] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 12.913438][ T387] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.913442][ T387] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 12.913446][ T387] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 12.913450][ T387] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.913452][ T387] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 12.913457][ T387] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 12.913460][ T387] ____sys_sendmsg (net/socket.c:2713) [ 12.913462][ T387] ? copy_msghdr_from_user (net/socket.c:2650) [ 12.913464][ T387] ? sock_write_iter (net/socket.c:1269) [ 12.913466][ T387] ? move_addr_to_kernel (net/socket.c:258) [ 12.913473][ T387] ___sys_sendmsg (net/socket.c:2767) [ 12.913476][ T387] ? copy_msghdr_from_user (net/socket.c:2619) [ 12.913492][ T387] __sys_sendmsg (net/socket.c:2799) [ 12.913495][ T387] ? __sys_sendmsg_sock (net/socket.c:2780) [ 12.913501][ T387] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.913504][ T387] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.913507][ T387] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.913510][ T387] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.913512][ T387] RIP: 0033:0x7f1494af654e [ 12.913514][ T387] 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 [ 12.913516][ T387] RSP: 002b:00007fffd54d16b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 12.913518][ T387] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1494af654e [ 12.913520][ T387] RDX: 0000000000000000 RSI: 00007fffd54d1760 RDI: 0000000000000005 [ 12.913521][ T387] RBP: 00007fffd54d16c0 R08: 0000000000000000 R09: 0000000000000000 [ 12.913521][ T387] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918684 [ 12.913522][ T387] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffd54d1e20 | [ 14.178855][ T526] softirqs last disabled at (11724): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 14.178858][ T526] Preemption disabled at: | [ 14.178858][ T526] 0x0 | [ 14.178869][ T526] Tainted: [W]=WARN [ 14.178870][ T526] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.178872][ T526] Call Trace: [ 14.178874][ T526] [ 14.178875][ T526] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 14.178882][ T526] __might_resched.cold (kernel/sched/core.c:9234) [ 14.178886][ T526] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 14.178891][ T526] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 14.178895][ T526] __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)) [ 14.178897][ T526] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 14.178903][ T526] ? 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) [ 14.178906][ T526] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 14.178910][ T526] put_chars (drivers/char/virtio_console.c:1176) [ 14.178912][ T526] ? __send_to_port (drivers/char/virtio_console.c:654) [ 14.178914][ T526] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 14.178917][ T526] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 14.178922][ T526] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 14.178930][ T526] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 14.178933][ T526] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.178935][ T526] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.178939][ T526] console_emit_next_record (kernel/printk/printk.c:3183) [ 14.178943][ T526] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 14.178945][ T526] ? 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)) [ 14.178948][ T526] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.178949][ T526] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.178953][ T526] console_flush_one_record (kernel/printk/printk.c:3268) [ 14.178958][ T526] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 14.178960][ T526] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.178965][ T526] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 14.178970][ T526] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 14.178972][ T526] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.178973][ T526] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 14.178977][ T526] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 14.178979][ T526] ? vprintk_emit (kernel/printk/printk.c:2478) [ 14.178982][ T526] vprintk_emit (kernel/printk/printk.c:2479) [ 14.178985][ T526] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 14.178987][ T526] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 14.178989][ T526] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 14.178993][ T526] _printk (kernel/printk/printk.c:2504) [ 14.179004][ T526] ? snapshot_read.cold (user.c:?) [ 14.179009][ T526] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.179013][ T526] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 14.179018][ T526] br_init_port (net/bridge/br_stp_if.c:39) [ 14.179021][ T526] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 14.179023][ T526] br_device_event (net/bridge/br.c:120) [ 14.179026][ T526] ? packet_sendmsg_spkt (af_packet.c:?) [ 14.179027][ T526] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 14.179034][ T526] notifier_call_chain (kernel/notifier.c:85) [ 14.179040][ T526] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 14.179045][ T526] ? netif_change_name (net/core/dev.c:1517) [ 14.179049][ T526] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 14.179051][ T526] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 14.179054][ T526] ? __kernel_text_address (kernel/extable.c:79) [ 14.179055][ T526] ? write_profile (profile.c:?) [ 14.179060][ T526] netif_change_flags (net/core/dev.c:9882) [ 14.179064][ T526] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 14.179067][ T526] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 14.179069][ T526] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 14.179071][ T526] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 14.179072][ T526] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 14.179076][ T526] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 14.179078][ T526] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 14.179079][ T526] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 14.179082][ T526] ? kasan_save_stack (mm/kasan/common.c:58) [ 14.179084][ T526] ? kasan_save_stack (mm/kasan/common.c:57) [ 14.179085][ T526] ? kasan_save_track (mm/kasan/common.c:78) [ 14.179086][ T526] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 14.179089][ T526] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.179091][ T526] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 14.179093][ T526] ? ___sys_sendmsg (net/socket.c:2758) [ 14.179097][ T526] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.179099][ T526] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 14.179102][ T526] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.179103][ T526] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.179105][ T526] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.179106][ T526] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.179108][ T526] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 14.179110][ T526] ? __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) [ 14.179113][ T526] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 14.179115][ T526] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 14.179118][ T526] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 14.179121][ T526] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.179123][ T526] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 14.179129][ T526] rtnl_newlink (net/core/rtnetlink.c:4215) [ 14.179134][ T526] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 14.179136][ T526] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.179140][ T526] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.179142][ T526] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 14.179144][ T526] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 14.179146][ T526] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 14.179150][ T526] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 14.179151][ T526] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 14.179155][ T526] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 14.179156][ T526] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.179160][ T526] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.179162][ T526] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 14.179166][ T526] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 14.179167][ T526] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 14.179170][ T526] ? netlink_ack (./include/linux/skbuff.h:2718) [ 14.179177][ T526] ? 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)) [ 14.179179][ T526] ? 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)) [ 14.179183][ T526] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 14.179187][ T526] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 14.179189][ T526] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 14.179194][ T526] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 14.179197][ T526] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 14.179201][ T526] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 14.179203][ T526] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 14.179208][ T526] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 14.179211][ T526] ____sys_sendmsg (net/socket.c:2713) [ 14.179213][ T526] ? copy_msghdr_from_user (net/socket.c:2650) [ 14.179215][ T526] ? sock_write_iter (net/socket.c:1269) [ 14.179217][ T526] ? move_addr_to_kernel (net/socket.c:258) [ 14.179224][ T526] ___sys_sendmsg (net/socket.c:2767) [ 14.179227][ T526] ? copy_msghdr_from_user (net/socket.c:2619) [ 14.179242][ T526] __sys_sendmsg (net/socket.c:2799) [ 14.179245][ T526] ? __sys_sendmsg_sock (net/socket.c:2780) [ 14.179252][ T526] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.179255][ T526] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 14.179258][ T526] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 14.179260][ T526] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 14.179262][ T526] RIP: 0033:0x7f2e9075d54e [ 14.179265][ T526] 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 [ 14.179266][ T526] RSP: 002b:00007fff665960e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 14.179269][ T526] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f2e9075d54e [ 14.179270][ T526] RDX: 0000000000000000 RSI: 00007fff66596190 RDI: 0000000000000005 [ 14.179271][ T526] RBP: 00007fff665960f0 R08: 0000000000000000 R09: 0000000000000000 [ 14.179272][ T526] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918685 [ 14.179273][ T526] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff66596850 | [ 15.772997][ T649] softirqs last disabled at (17056): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 15.772999][ T649] Preemption disabled at: | [ 15.773000][ T649] 0x0 | [ 15.773010][ T649] Tainted: [W]=WARN [ 15.773011][ T649] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.773013][ T649] Call Trace: [ 15.773014][ T649] [ 15.773016][ T649] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 15.773023][ T649] __might_resched.cold (kernel/sched/core.c:9234) [ 15.773028][ T649] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 15.773032][ T649] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 15.773037][ T649] __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)) [ 15.773039][ T649] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.773045][ T649] ? 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) [ 15.773048][ T649] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.773052][ T649] put_chars (drivers/char/virtio_console.c:1176) [ 15.773055][ T649] ? __send_to_port (drivers/char/virtio_console.c:654) [ 15.773061][ T649] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 15.773069][ T649] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 15.773072][ T649] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.773077][ T649] console_emit_next_record (kernel/printk/printk.c:3183) [ 15.773081][ T649] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 15.773083][ T649] ? 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)) [ 15.773086][ T649] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.773089][ T649] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.773093][ T649] console_flush_one_record (kernel/printk/printk.c:3268) [ 15.773097][ T649] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 15.773099][ T649] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.773105][ T649] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 15.773108][ T649] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 15.773110][ T649] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.773112][ T649] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 15.773115][ T649] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 15.773117][ T649] ? vprintk_emit (kernel/printk/printk.c:2478) [ 15.773120][ T649] vprintk_emit (kernel/printk/printk.c:2479) [ 15.773123][ T649] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 15.773124][ T649] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 15.773127][ T649] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 15.773129][ T649] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 15.773133][ T649] _printk (kernel/printk/printk.c:2504) [ 15.773137][ T649] ? snapshot_read.cold (user.c:?) [ 15.773145][ T649] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 15.773150][ T649] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 15.773153][ T649] br_device_event (net/bridge/br.c:111) [ 15.773155][ T649] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 15.773159][ T649] ? packet_sendmsg_spkt (af_packet.c:?) [ 15.773165][ T649] notifier_call_chain (kernel/notifier.c:85) [ 15.773171][ T649] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 15.773176][ T649] ? netif_change_name (net/core/dev.c:1517) [ 15.773180][ T649] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 15.773183][ T649] ? __kernel_text_address (kernel/extable.c:79) [ 15.773186][ T649] ? write_profile (profile.c:?) [ 15.773191][ T649] netif_change_flags (net/core/dev.c:9882) [ 15.773195][ T649] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 15.773198][ T649] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 15.773200][ T649] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 15.773202][ T649] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 15.773204][ T649] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 15.773207][ T649] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 15.773209][ T649] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 15.773211][ T649] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 15.773214][ T649] ? kasan_save_stack (mm/kasan/common.c:58) [ 15.773216][ T649] ? kasan_save_stack (mm/kasan/common.c:57) [ 15.773217][ T649] ? kasan_save_track (mm/kasan/common.c:78) [ 15.773219][ T649] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 15.773221][ T649] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.773223][ T649] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 15.773226][ T649] ? ___sys_sendmsg (net/socket.c:2758) [ 15.773229][ T649] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.773232][ T649] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 15.773234][ T649] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.773236][ T649] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.773238][ T649] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.773239][ T649] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.773240][ T649] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 15.773243][ T649] ? __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) [ 15.773244][ T649] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 15.773246][ T649] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 15.773250][ T649] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 15.773254][ T649] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.773256][ T649] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 15.773261][ T649] rtnl_newlink (net/core/rtnetlink.c:4215) [ 15.773267][ T649] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 15.773269][ T649] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.773273][ T649] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.773275][ T649] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 15.773277][ T649] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 15.773279][ T649] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 15.773283][ T649] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 15.773285][ T649] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 15.773289][ T649] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 15.773290][ T649] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.773295][ T649] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.773297][ T649] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 15.773300][ T649] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 15.773303][ T649] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 15.773306][ T649] ? netlink_ack (./include/linux/skbuff.h:2718) [ 15.773313][ T649] ? 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)) [ 15.773315][ T649] ? 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)) [ 15.773320][ T649] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 15.773324][ T649] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 15.773327][ T649] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 15.773331][ T649] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 15.773335][ T649] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 15.773339][ T649] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 15.773341][ T649] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 15.773346][ T649] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 15.773349][ T649] ____sys_sendmsg (net/socket.c:2713) [ 15.773351][ T649] ? copy_msghdr_from_user (net/socket.c:2650) [ 15.773354][ T649] ? sock_write_iter (net/socket.c:1269) [ 15.773355][ T649] ? move_addr_to_kernel (net/socket.c:258) [ 15.773363][ T649] ___sys_sendmsg (net/socket.c:2767) [ 15.773366][ T649] ? copy_msghdr_from_user (net/socket.c:2619) [ 15.773382][ T649] __sys_sendmsg (net/socket.c:2799) [ 15.773385][ T649] ? __sys_sendmsg_sock (net/socket.c:2780) [ 15.773392][ T649] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.773395][ T649] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 15.773398][ T649] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 15.773401][ T649] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 15.773403][ T649] RIP: 0033:0x7f6179ee754e [ 15.773406][ T649] 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 [ 15.773407][ T649] RSP: 002b:00007ffe33ef3fc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 15.773410][ T649] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f6179ee754e [ 15.773411][ T649] RDX: 0000000000000000 RSI: 00007ffe33ef4070 RDI: 0000000000000005 [ 15.773412][ T649] RBP: 00007ffe33ef3fd0 R08: 0000000000000000 R09: 0000000000000000 [ 15.773413][ T649] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918687 [ 15.773414][ T649] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe33ef4730 | [ 16.996467][ T46] softirqs last disabled at (75692): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 16.996470][ T46] Preemption disabled at: | [ 16.996470][ T46] 0x0 | [ 16.996482][ T46] Tainted: [W]=WARN [ 16.996483][ T46] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.996485][ T46] Workqueue: events_unbound linkwatch_event [ 16.996488][ T46] Call Trace: [ 16.996490][ T46] [ 16.996492][ T46] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 16.996498][ T46] __might_resched.cold (kernel/sched/core.c:9234) [ 16.996503][ T46] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 16.996507][ T46] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 16.996511][ T46] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 16.996513][ T46] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.996520][ T46] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 16.996523][ T46] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.996527][ T46] put_chars (drivers/char/virtio_console.c:1176) [ 16.996529][ T46] ? __send_to_port (drivers/char/virtio_console.c:654) [ 16.996532][ T46] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 16.996535][ T46] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 16.996538][ T46] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 16.996542][ T46] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 16.996546][ T46] ? mark_usage (kernel/locking/lockdep.c:4690) [ 16.996548][ T46] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.996550][ T46] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.996554][ T46] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 16.996556][ T46] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.996561][ T46] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.996565][ T46] console_emit_next_record (kernel/printk/printk.c:3183) [ 16.996569][ T46] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 16.996571][ T46] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 16.996574][ T46] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.996576][ T46] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.996580][ T46] console_flush_one_record (kernel/printk/printk.c:3268) [ 16.996585][ T46] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 16.996586][ T46] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.996592][ T46] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 16.996595][ T46] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 16.996597][ T46] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.996599][ T46] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 16.996602][ T46] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 16.996604][ T46] ? vprintk_emit (kernel/printk/printk.c:2478) [ 16.996607][ T46] vprintk_emit (kernel/printk/printk.c:2479) [ 16.996610][ T46] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 16.996612][ T46] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 16.996614][ T46] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 16.996618][ T46] _printk (kernel/printk/printk.c:2504) [ 16.996622][ T46] ? snapshot_read.cold (user.c:?) [ 16.996627][ T46] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.996631][ T46] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 16.996635][ T46] br_init_port (net/bridge/br_stp_if.c:39) [ 16.996638][ T46] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 16.996640][ T46] br_port_carrier_check (net/bridge/br_if.c:90) [ 16.996644][ T46] br_device_event (net/bridge/br.c:101) [ 16.996647][ T46] ? packet_sendmsg_spkt (af_packet.c:?) [ 16.996649][ T46] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 16.996656][ T46] notifier_call_chain (kernel/notifier.c:85) [ 16.996662][ T46] netif_state_change (net/core/dev.c:1625) [ 16.996667][ T46] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 16.996672][ T46] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 16.996674][ T46] __linkwatch_run_queue (net/core/link_watch.c:240) [ 16.996677][ T46] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 16.996680][ T46] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.996684][ T46] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 16.996686][ T46] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 16.996690][ T46] process_one_work (kernel/workqueue.c:3387) [ 16.996697][ T46] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 16.996700][ T46] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 16.996707][ T46] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 16.996715][ T46] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 16.996717][ T46] kthread (kernel/kthread.c:436) [ 16.996719][ T46] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 16.996722][ T46] ? kthread_affine_preferred (kernel/kthread.c:857) [ 16.996725][ T46] ret_from_fork (arch/x86/kernel/process.c:158) [ 16.996729][ T46] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 16.996733][ T46] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 16.996736][ T46] ? kthread_affine_preferred (kernel/kthread.c:857) [ 16.996739][ T46] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 18.164538][ T46] softirqs last disabled at (119124): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 18.164541][ T46] Preemption disabled at: | [ 18.164541][ T46] 0x0 | [ 18.164552][ T46] Tainted: [W]=WARN [ 18.164552][ T46] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.164554][ T46] Workqueue: events_unbound linkwatch_event [ 18.164557][ T46] Call Trace: [ 18.164559][ T46] [ 18.164561][ T46] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 18.164567][ T46] __might_resched.cold (kernel/sched/core.c:9234) [ 18.164572][ T46] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 18.164576][ T46] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 18.164580][ T46] __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)) [ 18.164582][ T46] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 18.164589][ T46] ? 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) [ 18.164592][ T46] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 18.164596][ T46] put_chars (drivers/char/virtio_console.c:1176) [ 18.164599][ T46] ? __send_to_port (drivers/char/virtio_console.c:654) [ 18.164602][ T46] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 18.164605][ T46] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 18.164608][ T46] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 18.164612][ T46] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 18.164616][ T46] ? mark_usage (kernel/locking/lockdep.c:4690) [ 18.164618][ T46] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.164620][ T46] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.164625][ T46] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 18.164627][ T46] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 18.164631][ T46] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 18.164635][ T46] console_emit_next_record (kernel/printk/printk.c:3183) [ 18.164639][ T46] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 18.164641][ T46] ? 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)) [ 18.164645][ T46] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.164647][ T46] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 18.164651][ T46] console_flush_one_record (kernel/printk/printk.c:3268) [ 18.164655][ T46] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 18.164657][ T46] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.164663][ T46] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 18.164666][ T46] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 18.164668][ T46] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.164669][ T46] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 18.164673][ T46] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 18.164675][ T46] ? vprintk_emit (kernel/printk/printk.c:2478) [ 18.164678][ T46] vprintk_emit (kernel/printk/printk.c:2479) [ 18.164681][ T46] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 18.164683][ T46] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 18.164685][ T46] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 18.164689][ T46] _printk (kernel/printk/printk.c:2504) [ 18.164692][ T46] ? snapshot_read.cold (user.c:?) [ 18.164698][ T46] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 18.164702][ T46] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 18.164706][ T46] br_init_port (net/bridge/br_stp_if.c:39) [ 18.164709][ T46] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 18.164710][ T46] br_port_carrier_check (net/bridge/br_if.c:90) [ 18.164714][ T46] br_device_event (net/bridge/br.c:101) [ 18.164718][ T46] ? packet_sendmsg_spkt (af_packet.c:?) [ 18.164720][ T46] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 18.164727][ T46] notifier_call_chain (kernel/notifier.c:85) [ 18.164733][ T46] netif_state_change (net/core/dev.c:1625) [ 18.164738][ T46] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 18.164743][ T46] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 18.164745][ T46] __linkwatch_run_queue (net/core/link_watch.c:240) [ 18.164748][ T46] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 18.164750][ T46] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 18.164755][ T46] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 18.164757][ T46] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 18.164760][ T46] process_one_work (kernel/workqueue.c:3387) [ 18.164767][ T46] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 18.164770][ T46] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 18.164778][ T46] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 18.164785][ T46] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 18.164787][ T46] kthread (kernel/kthread.c:436) [ 18.164789][ T46] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 18.164793][ T46] ? kthread_affine_preferred (kernel/kthread.c:857) [ 18.164795][ T46] ret_from_fork (arch/x86/kernel/process.c:158) [ 18.164800][ T46] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 18.164803][ T46] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 18.164807][ T46] ? kthread_affine_preferred (kernel/kthread.c:857) [ 18.164809][ T46] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 19.336105][ T1011] softirqs last disabled at (26362): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 19.336108][ T1011] Preemption disabled at: | [ 19.336109][ T1011] 0x0 | [ 19.336119][ T1011] Tainted: [W]=WARN [ 19.336120][ T1011] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 19.336121][ T1011] Call Trace: [ 19.336123][ T1011] [ 19.336124][ T1011] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 19.336131][ T1011] __might_resched.cold (kernel/sched/core.c:9234) [ 19.336135][ T1011] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 19.336140][ T1011] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 19.336144][ T1011] __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)) [ 19.336146][ T1011] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 19.336153][ T1011] ? 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) [ 19.336156][ T1011] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 19.336159][ T1011] put_chars (drivers/char/virtio_console.c:1176) [ 19.336162][ T1011] ? __send_to_port (drivers/char/virtio_console.c:654) [ 19.336163][ T1011] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 19.336167][ T1011] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 19.336172][ T1011] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 19.336180][ T1011] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 19.336182][ T1011] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.336184][ T1011] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 19.336189][ T1011] console_emit_next_record (kernel/printk/printk.c:3183) [ 19.336193][ T1011] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 19.336194][ T1011] ? 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)) [ 19.336198][ T1011] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.336199][ T1011] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 19.336203][ T1011] console_flush_one_record (kernel/printk/printk.c:3268) [ 19.336207][ T1011] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 19.336209][ T1011] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.336215][ T1011] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 19.336217][ T1011] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 19.336219][ T1011] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.336221][ T1011] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 19.336225][ T1011] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 19.336226][ T1011] ? vprintk_emit (kernel/printk/printk.c:2478) [ 19.336229][ T1011] vprintk_emit (kernel/printk/printk.c:2479) [ 19.336232][ T1011] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 19.336234][ T1011] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 19.336236][ T1011] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 19.336241][ T1011] _printk (kernel/printk/printk.c:2504) [ 19.336245][ T1011] ? snapshot_read.cold (user.c:?) [ 19.336250][ T1011] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 19.336254][ T1011] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 19.336258][ T1011] br_init_port (net/bridge/br_stp_if.c:39) [ 19.336261][ T1011] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 19.336263][ T1011] br_device_event (net/bridge/br.c:120) [ 19.336265][ T1011] ? packet_sendmsg_spkt (af_packet.c:?) [ 19.336267][ T1011] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 19.336274][ T1011] notifier_call_chain (kernel/notifier.c:85) [ 19.336280][ T1011] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 19.336285][ T1011] ? netif_change_name (net/core/dev.c:1517) [ 19.336289][ T1011] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 19.336291][ T1011] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 19.336294][ T1011] ? __kernel_text_address (kernel/extable.c:79) [ 19.336296][ T1011] ? write_profile (profile.c:?) [ 19.336301][ T1011] netif_change_flags (net/core/dev.c:9882) [ 19.336304][ T1011] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 19.336308][ T1011] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 19.336310][ T1011] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 19.336311][ T1011] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 19.336313][ T1011] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 19.336317][ T1011] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 19.336318][ T1011] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 19.336320][ T1011] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 19.336323][ T1011] ? kasan_save_stack (mm/kasan/common.c:58) [ 19.336325][ T1011] ? kasan_save_stack (mm/kasan/common.c:57) [ 19.336326][ T1011] ? kasan_save_track (mm/kasan/common.c:78) [ 19.336327][ T1011] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 19.336330][ T1011] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.336332][ T1011] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 19.336334][ T1011] ? ___sys_sendmsg (net/socket.c:2758) [ 19.336338][ T1011] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 19.336340][ T1011] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 19.336343][ T1011] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.336344][ T1011] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 19.336346][ T1011] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.336347][ T1011] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.336349][ T1011] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 19.336351][ T1011] ? __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) [ 19.336354][ T1011] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 19.336356][ T1011] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 19.336359][ T1011] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 19.336363][ T1011] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.336365][ T1011] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 19.336370][ T1011] rtnl_newlink (net/core/rtnetlink.c:4215) [ 19.336376][ T1011] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 19.336377][ T1011] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.336382][ T1011] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 19.336384][ T1011] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 19.336386][ T1011] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 19.336388][ T1011] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 19.336392][ T1011] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 19.336394][ T1011] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 19.336397][ T1011] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 19.336398][ T1011] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.336403][ T1011] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 19.336404][ T1011] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 19.336408][ T1011] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 19.336410][ T1011] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 19.336413][ T1011] ? netlink_ack (./include/linux/skbuff.h:2718) [ 19.336419][ T1011] ? 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)) [ 19.336421][ T1011] ? 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)) [ 19.336426][ T1011] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 19.336435][ T1011] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 19.336437][ T1011] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 19.336442][ T1011] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 19.336445][ T1011] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 19.336449][ T1011] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 19.336451][ T1011] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 19.336456][ T1011] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 19.336459][ T1011] ____sys_sendmsg (net/socket.c:2713) [ 19.336461][ T1011] ? copy_msghdr_from_user (net/socket.c:2650) [ 19.336463][ T1011] ? sock_write_iter (net/socket.c:1269) [ 19.336465][ T1011] ? move_addr_to_kernel (net/socket.c:258) [ 19.336472][ T1011] ___sys_sendmsg (net/socket.c:2767) [ 19.336475][ T1011] ? copy_msghdr_from_user (net/socket.c:2619) [ 19.336492][ T1011] __sys_sendmsg (net/socket.c:2799) [ 19.336496][ T1011] ? __sys_sendmsg_sock (net/socket.c:2780) [ 19.336502][ T1011] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.336505][ T1011] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 19.336508][ T1011] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 19.336510][ T1011] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 19.336513][ T1011] RIP: 0033:0x7f74d210554e [ 19.336515][ T1011] 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 [ 19.336517][ T1011] RSP: 002b:00007ffd45fcec30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 19.336519][ T1011] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f74d210554e [ 19.336521][ T1011] RDX: 0000000000000000 RSI: 00007ffd45fcece0 RDI: 0000000000000005 [ 19.336521][ T1011] RBP: 00007ffd45fcec40 R08: 0000000000000000 R09: 0000000000000000 [ 19.336522][ T1011] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91868a [ 19.336523][ T1011] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd45fcf3a0 | [ 20.376992][ T1121] softirqs last disabled at (21640): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 20.376994][ T1121] Preemption disabled at: | [ 20.376995][ T1121] 0x0 | [ 20.377006][ T1121] Tainted: [W]=WARN [ 20.377007][ T1121] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 20.377008][ T1121] Call Trace: [ 20.377010][ T1121] [ 20.377011][ T1121] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 20.377018][ T1121] __might_resched.cold (kernel/sched/core.c:9234) [ 20.377023][ T1121] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 20.377027][ T1121] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 20.377032][ T1121] __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)) [ 20.377033][ T1121] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 20.377040][ T1121] ? 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) [ 20.377042][ T1121] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 20.377046][ T1121] put_chars (drivers/char/virtio_console.c:1176) [ 20.377049][ T1121] ? __send_to_port (drivers/char/virtio_console.c:654) [ 20.377055][ T1121] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 20.377062][ T1121] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 20.377066][ T1121] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 20.377070][ T1121] console_emit_next_record (kernel/printk/printk.c:3183) [ 20.377074][ T1121] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 20.377076][ T1121] ? 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)) [ 20.377079][ T1121] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.377082][ T1121] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 20.377086][ T1121] console_flush_one_record (kernel/printk/printk.c:3268) [ 20.377090][ T1121] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 20.377092][ T1121] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.377097][ T1121] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 20.377100][ T1121] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 20.377102][ T1121] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.377104][ T1121] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 20.377107][ T1121] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 20.377109][ T1121] ? vprintk_emit (kernel/printk/printk.c:2478) [ 20.377112][ T1121] vprintk_emit (kernel/printk/printk.c:2479) [ 20.377115][ T1121] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 20.377116][ T1121] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 20.377119][ T1121] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 20.377121][ T1121] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 20.377125][ T1121] _printk (kernel/printk/printk.c:2504) [ 20.377129][ T1121] ? snapshot_read.cold (user.c:?) [ 20.377136][ T1121] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 20.377141][ T1121] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 20.377144][ T1121] br_device_event (net/bridge/br.c:111) [ 20.377146][ T1121] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 20.377150][ T1121] ? packet_sendmsg_spkt (af_packet.c:?) [ 20.377156][ T1121] notifier_call_chain (kernel/notifier.c:85) [ 20.377161][ T1121] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 20.377167][ T1121] ? netif_change_name (net/core/dev.c:1517) [ 20.377171][ T1121] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 20.377174][ T1121] ? __kernel_text_address (kernel/extable.c:79) [ 20.377176][ T1121] ? write_profile (profile.c:?) [ 20.377181][ T1121] netif_change_flags (net/core/dev.c:9882) [ 20.377185][ T1121] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 20.377189][ T1121] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 20.377191][ T1121] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 20.377192][ T1121] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 20.377194][ T1121] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 20.377197][ T1121] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 20.377199][ T1121] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 20.377201][ T1121] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 20.377203][ T1121] ? kasan_save_stack (mm/kasan/common.c:58) [ 20.377206][ T1121] ? kasan_save_stack (mm/kasan/common.c:57) [ 20.377207][ T1121] ? kasan_save_track (mm/kasan/common.c:78) [ 20.377208][ T1121] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 20.377211][ T1121] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.377212][ T1121] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 20.377215][ T1121] ? ___sys_sendmsg (net/socket.c:2758) [ 20.377219][ T1121] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 20.377221][ T1121] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 20.377223][ T1121] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.377225][ T1121] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 20.377227][ T1121] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.377228][ T1121] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.377230][ T1121] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 20.377232][ T1121] ? __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) [ 20.377233][ T1121] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 20.377235][ T1121] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 20.377238][ T1121] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 20.377242][ T1121] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.377244][ T1121] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 20.377249][ T1121] rtnl_newlink (net/core/rtnetlink.c:4215) [ 20.377254][ T1121] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 20.377256][ T1121] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.377261][ T1121] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 20.377263][ T1121] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 20.377265][ T1121] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 20.377267][ T1121] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 20.377271][ T1121] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 20.377273][ T1121] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 20.377276][ T1121] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 20.377277][ T1121] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.377281][ T1121] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 20.377283][ T1121] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 20.377287][ T1121] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 20.377290][ T1121] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 20.377293][ T1121] ? netlink_ack (./include/linux/skbuff.h:2718) [ 20.377299][ T1121] ? 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)) [ 20.377301][ T1121] ? 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)) [ 20.377306][ T1121] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 20.377310][ T1121] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 20.377312][ T1121] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 20.377316][ T1121] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 20.377320][ T1121] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 20.377324][ T1121] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 20.377326][ T1121] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 20.377331][ T1121] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 20.377334][ T1121] ____sys_sendmsg (net/socket.c:2713) [ 20.377336][ T1121] ? copy_msghdr_from_user (net/socket.c:2650) [ 20.377338][ T1121] ? sock_write_iter (net/socket.c:1269) [ 20.377340][ T1121] ? move_addr_to_kernel (net/socket.c:258) [ 20.377347][ T1121] ___sys_sendmsg (net/socket.c:2767) [ 20.377350][ T1121] ? copy_msghdr_from_user (net/socket.c:2619) [ 20.377366][ T1121] __sys_sendmsg (net/socket.c:2799) [ 20.377369][ T1121] ? __sys_sendmsg_sock (net/socket.c:2780) [ 20.377375][ T1121] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.377378][ T1121] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 20.377381][ T1121] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 20.377384][ T1121] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 20.377386][ T1121] RIP: 0033:0x7f676349454e [ 20.377389][ T1121] 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 [ 20.377390][ T1121] RSP: 002b:00007fff8a27d960 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 20.377393][ T1121] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f676349454e [ 20.377394][ T1121] RDX: 0000000000000000 RSI: 00007fff8a27da10 RDI: 0000000000000005 [ 20.377395][ T1121] RBP: 00007fff8a27d970 R08: 0000000000000000 R09: 0000000000000000 [ 20.377396][ T1121] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91868b [ 20.377397][ T1121] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff8a27e0d0 | [ 21.856487][ T1236] softirqs last disabled at (16168): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 21.856489][ T1236] Preemption disabled at: | [ 21.856490][ T1236] 0x0 | [ 21.856501][ T1236] Tainted: [W]=WARN [ 21.856501][ T1236] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 21.856504][ T1236] Call Trace: [ 21.856505][ T1236] [ 21.856507][ T1236] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 21.856514][ T1236] __might_resched.cold (kernel/sched/core.c:9234) [ 21.856518][ T1236] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 21.856522][ T1236] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 21.856527][ T1236] __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)) [ 21.856529][ T1236] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 21.856536][ T1236] ? 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) [ 21.856539][ T1236] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 21.856542][ T1236] put_chars (drivers/char/virtio_console.c:1176) [ 21.856545][ T1236] ? __send_to_port (drivers/char/virtio_console.c:654) [ 21.856551][ T1236] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 21.856559][ T1236] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 21.856562][ T1236] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 21.856567][ T1236] console_emit_next_record (kernel/printk/printk.c:3183) [ 21.856571][ T1236] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 21.856573][ T1236] ? 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)) [ 21.856576][ T1236] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.856579][ T1236] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 21.856583][ T1236] console_flush_one_record (kernel/printk/printk.c:3268) [ 21.856587][ T1236] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 21.856589][ T1236] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 21.856594][ T1236] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 21.856597][ T1236] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 21.856599][ T1236] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.856601][ T1236] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 21.856604][ T1236] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 21.856606][ T1236] ? vprintk_emit (kernel/printk/printk.c:2478) [ 21.856609][ T1236] vprintk_emit (kernel/printk/printk.c:2479) [ 21.856612][ T1236] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 21.856614][ T1236] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 21.856616][ T1236] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 21.856619][ T1236] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 21.856623][ T1236] _printk (kernel/printk/printk.c:2504) [ 21.856627][ T1236] ? snapshot_read.cold (user.c:?) [ 21.856634][ T1236] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 21.856639][ T1236] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 21.856643][ T1236] br_device_event (net/bridge/br.c:111) [ 21.856645][ T1236] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 21.856649][ T1236] ? packet_sendmsg_spkt (af_packet.c:?) [ 21.856655][ T1236] notifier_call_chain (kernel/notifier.c:85) [ 21.856661][ T1236] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 21.856666][ T1236] ? netif_change_name (net/core/dev.c:1517) [ 21.856670][ T1236] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 21.856673][ T1236] ? __kernel_text_address (kernel/extable.c:79) [ 21.856676][ T1236] ? write_profile (profile.c:?) [ 21.856681][ T1236] netif_change_flags (net/core/dev.c:9882) [ 21.856685][ T1236] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 21.856688][ T1236] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 21.856691][ T1236] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 21.856692][ T1236] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 21.856694][ T1236] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 21.856697][ T1236] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 21.856699][ T1236] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 21.856701][ T1236] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 21.856704][ T1236] ? kasan_save_stack (mm/kasan/common.c:58) [ 21.856706][ T1236] ? kasan_save_stack (mm/kasan/common.c:57) [ 21.856707][ T1236] ? kasan_save_track (mm/kasan/common.c:78) [ 21.856709][ T1236] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 21.856711][ T1236] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 21.856713][ T1236] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 21.856716][ T1236] ? ___sys_sendmsg (net/socket.c:2758) [ 21.856720][ T1236] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 21.856722][ T1236] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 21.856724][ T1236] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.856726][ T1236] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 21.856728][ T1236] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.856729][ T1236] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.856731][ T1236] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 21.856733][ T1236] ? __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) [ 21.856734][ T1236] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 21.856736][ T1236] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 21.856740][ T1236] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 21.856744][ T1236] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.856746][ T1236] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 21.856751][ T1236] rtnl_newlink (net/core/rtnetlink.c:4215) [ 21.856757][ T1236] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 21.856759][ T1236] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 21.856763][ T1236] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 21.856765][ T1236] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 21.856768][ T1236] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 21.856769][ T1236] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 21.856773][ T1236] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 21.856776][ T1236] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 21.856779][ T1236] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 21.856780][ T1236] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 21.856785][ T1236] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 21.856787][ T1236] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 21.856790][ T1236] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 21.856793][ T1236] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 21.856796][ T1236] ? netlink_ack (./include/linux/skbuff.h:2718) [ 21.856803][ T1236] ? 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)) [ 21.856805][ T1236] ? 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)) [ 21.856810][ T1236] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 21.856814][ T1236] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 21.856816][ T1236] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 21.856823][ T1236] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 21.856827][ T1236] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 21.856831][ T1236] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 21.856832][ T1236] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 21.856838][ T1236] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 21.856841][ T1236] ____sys_sendmsg (net/socket.c:2713) [ 21.856843][ T1236] ? copy_msghdr_from_user (net/socket.c:2650) [ 21.856845][ T1236] ? sock_write_iter (net/socket.c:1269) [ 21.856847][ T1236] ? move_addr_to_kernel (net/socket.c:258) [ 21.856854][ T1236] ___sys_sendmsg (net/socket.c:2767) [ 21.856857][ T1236] ? copy_msghdr_from_user (net/socket.c:2619) [ 21.856873][ T1236] __sys_sendmsg (net/socket.c:2799) [ 21.856876][ T1236] ? __sys_sendmsg_sock (net/socket.c:2780) [ 21.856883][ T1236] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 21.856886][ T1236] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 21.856889][ T1236] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 21.856892][ T1236] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 21.856894][ T1236] RIP: 0033:0x7fc5e466a54e [ 21.856896][ T1236] 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 [ 21.856898][ T1236] RSP: 002b:00007fff751eb7b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 21.856901][ T1236] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc5e466a54e [ 21.856902][ T1236] RDX: 0000000000000000 RSI: 00007fff751eb860 RDI: 0000000000000005 [ 21.856903][ T1236] RBP: 00007fff751eb7c0 R08: 0000000000000000 R09: 0000000000000000 [ 21.856903][ T1236] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91868d [ 21.856904][ T1236] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff751ebf20 | [ 23.142726][ T203] softirqs last disabled at (47506): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 23.142728][ T203] Preemption disabled at: | [ 23.142729][ T203] 0x0 | [ 23.142739][ T203] Tainted: [W]=WARN [ 23.142740][ T203] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 23.142742][ T203] Workqueue: events_unbound linkwatch_event [ 23.142745][ T203] Call Trace: [ 23.142746][ T203] [ 23.142748][ T203] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 23.142755][ T203] __might_resched.cold (kernel/sched/core.c:9234) [ 23.142759][ T203] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 23.142763][ T203] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 23.142768][ T203] __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)) [ 23.142769][ T203] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.142776][ T203] ? 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) [ 23.142779][ T203] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.142783][ T203] put_chars (drivers/char/virtio_console.c:1176) [ 23.142786][ T203] ? __send_to_port (drivers/char/virtio_console.c:654) [ 23.142788][ T203] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 23.142791][ T203] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 23.142794][ T203] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 23.142798][ T203] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 23.142802][ T203] ? mark_usage (kernel/locking/lockdep.c:4690) [ 23.142804][ T203] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.142806][ T203] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.142810][ T203] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 23.142812][ T203] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.142817][ T203] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.142821][ T203] console_emit_next_record (kernel/printk/printk.c:3183) [ 23.142825][ T203] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 23.142827][ T203] ? 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)) [ 23.142830][ T203] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.142832][ T203] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.142836][ T203] console_flush_one_record (kernel/printk/printk.c:3268) [ 23.142841][ T203] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 23.142842][ T203] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.142848][ T203] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 23.142851][ T203] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 23.142853][ T203] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.142854][ T203] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 23.142858][ T203] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 23.142860][ T203] ? vprintk_emit (kernel/printk/printk.c:2478) [ 23.142863][ T203] vprintk_emit (kernel/printk/printk.c:2479) [ 23.142866][ T203] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 23.142868][ T203] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 23.142870][ T203] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 23.142874][ T203] _printk (kernel/printk/printk.c:2504) [ 23.142877][ T203] ? snapshot_read.cold (user.c:?) [ 23.142883][ T203] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.142887][ T203] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 23.142891][ T203] br_init_port (net/bridge/br_stp_if.c:39) [ 23.142893][ T203] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 23.142895][ T203] br_port_carrier_check (net/bridge/br_if.c:90) [ 23.142899][ T203] br_device_event (net/bridge/br.c:101) [ 23.142903][ T203] ? packet_sendmsg_spkt (af_packet.c:?) [ 23.142904][ T203] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 23.142911][ T203] notifier_call_chain (kernel/notifier.c:85) [ 23.142917][ T203] netif_state_change (net/core/dev.c:1625) [ 23.142922][ T203] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 23.142927][ T203] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 23.142929][ T203] __linkwatch_run_queue (net/core/link_watch.c:240) [ 23.142932][ T203] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 23.142935][ T203] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.142939][ T203] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 23.142941][ T203] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 23.142945][ T203] process_one_work (kernel/workqueue.c:3387) [ 23.142951][ T203] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 23.142954][ T203] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.142962][ T203] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 23.142969][ T203] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 23.142972][ T203] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 23.142975][ T203] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 23.142978][ T203] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 23.142980][ T203] kthread (kernel/kthread.c:436) [ 23.142982][ T203] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 23.142985][ T203] ? kthread_affine_preferred (kernel/kthread.c:857) [ 23.142988][ T203] ret_from_fork (arch/x86/kernel/process.c:158) [ 23.142992][ T203] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 23.142996][ T203] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 23.142999][ T203] ? kthread_affine_preferred (kernel/kthread.c:857) [ 23.143002][ T203] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 24.185469][ T38] softirqs last disabled at (103618): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 24.185471][ T38] Preemption disabled at: | [ 24.185472][ T38] 0x0 | [ 24.185483][ T38] Tainted: [W]=WARN [ 24.185484][ T38] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 24.185485][ T38] Workqueue: events_unbound linkwatch_event [ 24.185489][ T38] Call Trace: [ 24.185490][ T38] [ 24.185492][ T38] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 24.185499][ T38] __might_resched.cold (kernel/sched/core.c:9234) [ 24.185503][ T38] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 24.185507][ T38] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 24.185512][ T38] __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)) [ 24.185513][ T38] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 24.185520][ T38] ? 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) [ 24.185523][ T38] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 24.185527][ T38] put_chars (drivers/char/virtio_console.c:1176) [ 24.185529][ T38] ? __send_to_port (drivers/char/virtio_console.c:654) [ 24.185532][ T38] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 24.185535][ T38] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 24.185538][ T38] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 24.185542][ T38] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 24.185546][ T38] ? mark_usage (kernel/locking/lockdep.c:4690) [ 24.185548][ T38] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.185549][ T38] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.185554][ T38] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 24.185555][ T38] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.185560][ T38] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.185564][ T38] console_emit_next_record (kernel/printk/printk.c:3183) [ 24.185568][ T38] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 24.185570][ T38] ? 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)) [ 24.185573][ T38] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.185575][ T38] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.185579][ T38] console_flush_one_record (kernel/printk/printk.c:3268) [ 24.185583][ T38] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 24.185585][ T38] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.185591][ T38] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 24.185593][ T38] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 24.185595][ T38] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.185597][ T38] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 24.185601][ T38] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 24.185602][ T38] ? vprintk_emit (kernel/printk/printk.c:2478) [ 24.185605][ T38] vprintk_emit (kernel/printk/printk.c:2479) [ 24.185608][ T38] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 24.185611][ T38] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 24.185612][ T38] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 24.185616][ T38] _printk (kernel/printk/printk.c:2504) [ 24.185620][ T38] ? snapshot_read.cold (user.c:?) [ 24.185625][ T38] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.185629][ T38] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 24.185633][ T38] br_init_port (net/bridge/br_stp_if.c:39) [ 24.185636][ T38] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 24.185638][ T38] br_port_carrier_check (net/bridge/br_if.c:90) [ 24.185642][ T38] br_device_event (net/bridge/br.c:101) [ 24.185645][ T38] ? packet_sendmsg_spkt (af_packet.c:?) [ 24.185647][ T38] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 24.185654][ T38] notifier_call_chain (kernel/notifier.c:85) [ 24.185660][ T38] netif_state_change (net/core/dev.c:1625) [ 24.185665][ T38] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 24.185670][ T38] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 24.185672][ T38] __linkwatch_run_queue (net/core/link_watch.c:240) [ 24.185675][ T38] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 24.185677][ T38] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.185682][ T38] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 24.185684][ T38] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 24.185687][ T38] process_one_work (kernel/workqueue.c:3387) [ 24.185694][ T38] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 24.185697][ T38] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.185705][ T38] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 24.185712][ T38] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 24.185714][ T38] kthread (kernel/kthread.c:436) [ 24.185716][ T38] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 24.185719][ T38] ? kthread_affine_preferred (kernel/kthread.c:857) [ 24.185722][ T38] ret_from_fork (arch/x86/kernel/process.c:158) [ 24.185726][ T38] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 24.185730][ T38] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 24.185733][ T38] ? kthread_affine_preferred (kernel/kthread.c:857) [ 24.185736][ T38] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 25.412338][ T1579] softirqs last disabled at (14106): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 25.412340][ T1579] Preemption disabled at: | [ 25.412341][ T1579] 0x0 | [ 25.412351][ T1579] Tainted: [W]=WARN [ 25.412353][ T1579] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 25.412354][ T1579] Call Trace: [ 25.412356][ T1579] [ 25.412357][ T1579] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 25.412364][ T1579] __might_resched.cold (kernel/sched/core.c:9234) [ 25.412368][ T1579] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 25.412373][ T1579] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 25.412377][ T1579] __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)) [ 25.412379][ T1579] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.412385][ T1579] ? 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) [ 25.412388][ T1579] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.412392][ T1579] put_chars (drivers/char/virtio_console.c:1176) [ 25.412394][ T1579] ? __send_to_port (drivers/char/virtio_console.c:654) [ 25.412395][ T1579] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 25.412399][ T1579] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 25.412404][ T1579] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 25.412412][ T1579] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 25.412415][ T1579] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.412417][ T1579] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.412420][ T1579] console_emit_next_record (kernel/printk/printk.c:3183) [ 25.412424][ T1579] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 25.412426][ T1579] ? 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)) [ 25.412429][ T1579] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.412431][ T1579] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.412435][ T1579] console_flush_one_record (kernel/printk/printk.c:3268) [ 25.412439][ T1579] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 25.412441][ T1579] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.412446][ T1579] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 25.412449][ T1579] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 25.412451][ T1579] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.412458][ T1579] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 25.412462][ T1579] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 25.412463][ T1579] ? vprintk_emit (kernel/printk/printk.c:2478) [ 25.412466][ T1579] vprintk_emit (kernel/printk/printk.c:2479) [ 25.412469][ T1579] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 25.412471][ T1579] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 25.412473][ T1579] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 25.412478][ T1579] _printk (kernel/printk/printk.c:2504) [ 25.412481][ T1579] ? snapshot_read.cold (user.c:?) [ 25.412486][ T1579] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.412490][ T1579] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 25.412495][ T1579] br_init_port (net/bridge/br_stp_if.c:39) [ 25.412498][ T1579] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 25.412500][ T1579] br_device_event (net/bridge/br.c:120) [ 25.412503][ T1579] ? packet_sendmsg_spkt (af_packet.c:?) [ 25.412504][ T1579] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 25.412511][ T1579] notifier_call_chain (kernel/notifier.c:85) [ 25.412516][ T1579] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 25.412521][ T1579] ? netif_change_name (net/core/dev.c:1517) [ 25.412525][ T1579] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 25.412528][ T1579] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 25.412531][ T1579] ? __kernel_text_address (kernel/extable.c:79) [ 25.412532][ T1579] ? write_profile (profile.c:?) [ 25.412537][ T1579] netif_change_flags (net/core/dev.c:9882) [ 25.412541][ T1579] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 25.412544][ T1579] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 25.412546][ T1579] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 25.412548][ T1579] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 25.412549][ T1579] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 25.412553][ T1579] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 25.412555][ T1579] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 25.412557][ T1579] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 25.412559][ T1579] ? kasan_save_stack (mm/kasan/common.c:58) [ 25.412561][ T1579] ? kasan_save_stack (mm/kasan/common.c:57) [ 25.412563][ T1579] ? kasan_save_track (mm/kasan/common.c:78) [ 25.412564][ T1579] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 25.412566][ T1579] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.412568][ T1579] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 25.412571][ T1579] ? ___sys_sendmsg (net/socket.c:2758) [ 25.412574][ T1579] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.412576][ T1579] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 25.412579][ T1579] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.412580][ T1579] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.412582][ T1579] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.412583][ T1579] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.412585][ T1579] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 25.412587][ T1579] ? __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) [ 25.412590][ T1579] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 25.412592][ T1579] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 25.412595][ T1579] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 25.412599][ T1579] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.412601][ T1579] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 25.412606][ T1579] rtnl_newlink (net/core/rtnetlink.c:4215) [ 25.412611][ T1579] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.412613][ T1579] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.412618][ T1579] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.412620][ T1579] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.412622][ T1579] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.412623][ T1579] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 25.412627][ T1579] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.412629][ T1579] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 25.412633][ T1579] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 25.412634][ T1579] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.412638][ T1579] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.412640][ T1579] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.412644][ T1579] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 25.412646][ T1579] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 25.412649][ T1579] ? netlink_ack (./include/linux/skbuff.h:2718) [ 25.412655][ T1579] ? 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)) [ 25.412657][ T1579] ? 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)) [ 25.412661][ T1579] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 25.412665][ T1579] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 25.412668][ T1579] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.412672][ T1579] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 25.412676][ T1579] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 25.412680][ T1579] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 25.412681][ T1579] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 25.412687][ T1579] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 25.412689][ T1579] ____sys_sendmsg (net/socket.c:2713) [ 25.412692][ T1579] ? copy_msghdr_from_user (net/socket.c:2650) [ 25.412694][ T1579] ? sock_write_iter (net/socket.c:1269) [ 25.412695][ T1579] ? move_addr_to_kernel (net/socket.c:258) [ 25.412703][ T1579] ___sys_sendmsg (net/socket.c:2767) [ 25.412705][ T1579] ? copy_msghdr_from_user (net/socket.c:2619) [ 25.412721][ T1579] __sys_sendmsg (net/socket.c:2799) [ 25.412724][ T1579] ? __sys_sendmsg_sock (net/socket.c:2780) [ 25.412730][ T1579] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.412733][ T1579] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 25.412736][ T1579] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 25.412739][ T1579] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 25.412741][ T1579] RIP: 0033:0x7ff366b3254e [ 25.412743][ T1579] 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 [ 25.412745][ T1579] RSP: 002b:00007ffff8258b60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 25.412747][ T1579] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff366b3254e [ 25.412749][ T1579] RDX: 0000000000000000 RSI: 00007ffff8258c10 RDI: 0000000000000005 [ 25.412750][ T1579] RBP: 00007ffff8258b70 R08: 0000000000000000 R09: 0000000000000000 [ 25.412750][ T1579] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918690 [ 25.412751][ T1579] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffff82592d0 | [ 26.468954][ T1679] softirqs last disabled at (13896): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 26.468956][ T1679] Preemption disabled at: | [ 26.468957][ T1679] 0x0 | [ 26.468970][ T1679] Tainted: [W]=WARN [ 26.468971][ T1679] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 26.468973][ T1679] Call Trace: [ 26.468975][ T1679] [ 26.468976][ T1679] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 26.468984][ T1679] __might_resched.cold (kernel/sched/core.c:9234) [ 26.468988][ T1679] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 26.468993][ T1679] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 26.468997][ T1679] __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)) [ 26.468999][ T1679] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 26.469005][ T1679] ? 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) [ 26.469008][ T1679] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 26.469012][ T1679] put_chars (drivers/char/virtio_console.c:1176) [ 26.469014][ T1679] ? __send_to_port (drivers/char/virtio_console.c:654) [ 26.469016][ T1679] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 26.469019][ T1679] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 26.469024][ T1679] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 26.469032][ T1679] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 26.469035][ T1679] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.469037][ T1679] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.469041][ T1679] console_emit_next_record (kernel/printk/printk.c:3183) [ 26.469045][ T1679] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 26.469047][ T1679] ? 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)) [ 26.469051][ T1679] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.469052][ T1679] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.469056][ T1679] console_flush_one_record (kernel/printk/printk.c:3268) [ 26.469060][ T1679] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 26.469062][ T1679] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.469068][ T1679] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 26.469070][ T1679] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 26.469072][ T1679] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.469074][ T1679] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 26.469078][ T1679] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 26.469079][ T1679] ? vprintk_emit (kernel/printk/printk.c:2478) [ 26.469082][ T1679] vprintk_emit (kernel/printk/printk.c:2479) [ 26.469085][ T1679] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 26.469087][ T1679] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 26.469089][ T1679] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 26.469094][ T1679] _printk (kernel/printk/printk.c:2504) [ 26.469098][ T1679] ? snapshot_read.cold (user.c:?) [ 26.469103][ T1679] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.469106][ T1679] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 26.469111][ T1679] br_init_port (net/bridge/br_stp_if.c:39) [ 26.469114][ T1679] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 26.469116][ T1679] br_device_event (net/bridge/br.c:120) [ 26.469119][ T1679] ? packet_sendmsg_spkt (af_packet.c:?) [ 26.469120][ T1679] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 26.469127][ T1679] notifier_call_chain (kernel/notifier.c:85) [ 26.469133][ T1679] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 26.469138][ T1679] ? netif_change_name (net/core/dev.c:1517) [ 26.469142][ T1679] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 26.469144][ T1679] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 26.469147][ T1679] ? __kernel_text_address (kernel/extable.c:79) [ 26.469149][ T1679] ? write_profile (profile.c:?) [ 26.469154][ T1679] netif_change_flags (net/core/dev.c:9882) [ 26.469157][ T1679] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 26.469159][ T1679] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 26.469163][ T1679] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 26.469164][ T1679] ? irq_matrix_free (kernel/irq/matrix.c:439) [ 26.469168][ T1679] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 26.469170][ T1679] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 26.469172][ T1679] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 26.469175][ T1679] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 26.469178][ T1679] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.469182][ T1679] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.469184][ T1679] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 26.469187][ T1679] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.469189][ T1679] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.469190][ T1679] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.469191][ T1679] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.469193][ T1679] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 26.469195][ T1679] ? __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) [ 26.469198][ T1679] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 26.469199][ T1679] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 26.469201][ T1679] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 26.469203][ T1679] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.469206][ T1679] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 26.469207][ T1679] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 26.469209][ T1679] ? irqentry_exit (./include/linux/irq-entry-common.h:507 ./include/linux/irq-entry-common.h:542 kernel/entry/common.c:167) [ 26.469210][ T1679] ? irqentry_exit (./include/linux/irq-entry-common.h:507 ./include/linux/irq-entry-common.h:542 kernel/entry/common.c:167) [ 26.469212][ T1679] ? lockdep_hardirqs_off (kernel/locking/lockdep.c:4527) [ 26.469215][ T1679] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.469217][ T1679] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 26.469222][ T1679] rtnl_newlink (net/core/rtnetlink.c:4215) [ 26.469227][ T1679] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.469229][ T1679] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.469234][ T1679] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.469236][ T1679] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.469238][ T1679] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.469240][ T1679] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 26.469243][ T1679] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.469245][ T1679] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 26.469248][ T1679] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 26.469250][ T1679] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.469254][ T1679] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.469256][ T1679] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.469259][ T1679] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 26.469261][ T1679] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 26.469264][ T1679] ? netlink_ack (./include/linux/skbuff.h:2718) [ 26.469270][ T1679] ? 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)) [ 26.469272][ T1679] ? 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)) [ 26.469277][ T1679] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 26.469281][ T1679] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 26.469283][ T1679] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.469288][ T1679] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 26.469291][ T1679] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 26.469295][ T1679] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 26.469297][ T1679] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 26.469302][ T1679] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 26.469306][ T1679] ____sys_sendmsg (net/socket.c:2713) [ 26.469308][ T1679] ? copy_msghdr_from_user (net/socket.c:2650) [ 26.469310][ T1679] ? sock_write_iter (net/socket.c:1269) [ 26.469312][ T1679] ? move_addr_to_kernel (net/socket.c:258) [ 26.469319][ T1679] ___sys_sendmsg (net/socket.c:2767) [ 26.469322][ T1679] ? copy_msghdr_from_user (net/socket.c:2619) [ 26.469338][ T1679] __sys_sendmsg (net/socket.c:2799) [ 26.469340][ T1679] ? __sys_sendmsg_sock (net/socket.c:2780) [ 26.469347][ T1679] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.469350][ T1679] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 26.469352][ T1679] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 26.469355][ T1679] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 26.469357][ T1679] RIP: 0033:0x7ff03121854e [ 26.469359][ T1679] 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 [ 26.469361][ T1679] RSP: 002b:00007ffcb7258470 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 26.469364][ T1679] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff03121854e [ 26.469365][ T1679] RDX: 0000000000000000 RSI: 00007ffcb7258520 RDI: 0000000000000005 [ 26.469366][ T1679] RBP: 00007ffcb7258480 R08: 0000000000000000 R09: 0000000000000000 [ 26.469367][ T1679] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918691 [ 26.469368][ T1679] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcb7258be0 | [ 28.246850][ T1804] softirqs last disabled at (24278): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 28.246852][ T1804] Preemption disabled at: | [ 28.246853][ T1804] 0x0 | [ 28.246864][ T1804] Tainted: [W]=WARN [ 28.246865][ T1804] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 28.246867][ T1804] Call Trace: [ 28.246868][ T1804] [ 28.246870][ T1804] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 28.246876][ T1804] __might_resched.cold (kernel/sched/core.c:9234) [ 28.246881][ T1804] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 28.246885][ T1804] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 28.246889][ T1804] __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)) [ 28.246891][ T1804] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 28.246898][ T1804] ? 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) [ 28.246900][ T1804] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 28.246904][ T1804] put_chars (drivers/char/virtio_console.c:1176) [ 28.246907][ T1804] ? __send_to_port (drivers/char/virtio_console.c:654) [ 28.246913][ T1804] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 28.246920][ T1804] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 28.246924][ T1804] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.246928][ T1804] console_emit_next_record (kernel/printk/printk.c:3183) [ 28.246932][ T1804] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 28.246934][ T1804] ? 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)) [ 28.246937][ T1804] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.246940][ T1804] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.246944][ T1804] console_flush_one_record (kernel/printk/printk.c:3268) [ 28.246948][ T1804] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 28.246950][ T1804] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.246955][ T1804] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 28.246958][ T1804] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 28.246960][ T1804] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.246962][ T1804] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 28.246965][ T1804] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 28.246969][ T1804] ? vprintk_emit (kernel/printk/printk.c:2478) [ 28.246972][ T1804] vprintk_emit (kernel/printk/printk.c:2479) [ 28.246975][ T1804] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 28.246976][ T1804] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 28.246979][ T1804] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 28.246981][ T1804] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 28.246985][ T1804] _printk (kernel/printk/printk.c:2504) [ 28.246989][ T1804] ? snapshot_read.cold (user.c:?) [ 28.246996][ T1804] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 28.247001][ T1804] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 28.247005][ T1804] br_device_event (net/bridge/br.c:111) [ 28.247007][ T1804] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 28.247011][ T1804] ? packet_sendmsg_spkt (af_packet.c:?) [ 28.247017][ T1804] notifier_call_chain (kernel/notifier.c:85) [ 28.247022][ T1804] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 28.247028][ T1804] ? netif_change_name (net/core/dev.c:1517) [ 28.247031][ T1804] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 28.247035][ T1804] ? __kernel_text_address (kernel/extable.c:79) [ 28.247037][ T1804] ? write_profile (profile.c:?) [ 28.247042][ T1804] netif_change_flags (net/core/dev.c:9882) [ 28.247046][ T1804] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 28.247049][ T1804] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 28.247051][ T1804] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 28.247053][ T1804] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 28.247054][ T1804] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 28.247058][ T1804] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 28.247060][ T1804] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 28.247062][ T1804] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 28.247064][ T1804] ? kasan_save_stack (mm/kasan/common.c:58) [ 28.247067][ T1804] ? kasan_save_stack (mm/kasan/common.c:57) [ 28.247068][ T1804] ? kasan_save_track (mm/kasan/common.c:78) [ 28.247069][ T1804] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 28.247071][ T1804] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.247073][ T1804] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 28.247076][ T1804] ? ___sys_sendmsg (net/socket.c:2758) [ 28.247080][ T1804] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.247082][ T1804] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 28.247084][ T1804] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.247086][ T1804] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.247088][ T1804] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.247089][ T1804] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.247090][ T1804] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 28.247093][ T1804] ? __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) [ 28.247094][ T1804] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 28.247096][ T1804] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 28.247099][ T1804] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 28.247103][ T1804] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.247105][ T1804] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 28.247110][ T1804] rtnl_newlink (net/core/rtnetlink.c:4215) [ 28.247116][ T1804] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 28.247117][ T1804] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.247122][ T1804] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.247124][ T1804] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.247126][ T1804] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 28.247128][ T1804] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 28.247131][ T1804] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 28.247133][ T1804] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 28.247137][ T1804] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 28.247138][ T1804] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.247142][ T1804] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.247144][ T1804] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.247148][ T1804] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 28.247151][ T1804] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 28.247154][ T1804] ? netlink_ack (./include/linux/skbuff.h:2718) [ 28.247160][ T1804] ? 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)) [ 28.247162][ T1804] ? 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)) [ 28.247167][ T1804] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 28.247171][ T1804] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 28.247173][ T1804] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.247177][ T1804] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 28.247181][ T1804] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 28.247185][ T1804] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 28.247187][ T1804] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 28.247192][ T1804] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 28.247195][ T1804] ____sys_sendmsg (net/socket.c:2713) [ 28.247197][ T1804] ? copy_msghdr_from_user (net/socket.c:2650) [ 28.247200][ T1804] ? sock_write_iter (net/socket.c:1269) [ 28.247201][ T1804] ? move_addr_to_kernel (net/socket.c:258) [ 28.247209][ T1804] ___sys_sendmsg (net/socket.c:2767) [ 28.247211][ T1804] ? copy_msghdr_from_user (net/socket.c:2619) [ 28.247227][ T1804] __sys_sendmsg (net/socket.c:2799) [ 28.247230][ T1804] ? __sys_sendmsg_sock (net/socket.c:2780) [ 28.247236][ T1804] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.247239][ T1804] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 28.247242][ T1804] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 28.247245][ T1804] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 28.247247][ T1804] RIP: 0033:0x7fd02569454e [ 28.247250][ T1804] 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 [ 28.247251][ T1804] RSP: 002b:00007ffde7b9bd60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 28.247254][ T1804] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fd02569454e [ 28.247255][ T1804] RDX: 0000000000000000 RSI: 00007ffde7b9be10 RDI: 0000000000000005 [ 28.247256][ T1804] RBP: 00007ffde7b9bd70 R08: 0000000000000000 R09: 0000000000000000 [ 28.247257][ T1804] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918693 [ 28.247257][ T1804] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffde7b9c4d0 | [ 29.311704][ T1904] softirqs last disabled at (16592): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 29.311706][ T1904] Preemption disabled at: | [ 29.311707][ T1904] 0x0 | [ 29.311717][ T1904] Tainted: [W]=WARN [ 29.311718][ T1904] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 29.311720][ T1904] Call Trace: [ 29.311721][ T1904] [ 29.311723][ T1904] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 29.311730][ T1904] __might_resched.cold (kernel/sched/core.c:9234) [ 29.311734][ T1904] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 29.311738][ T1904] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 29.311743][ T1904] __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)) [ 29.311745][ T1904] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 29.311751][ T1904] ? 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) [ 29.311754][ T1904] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 29.311758][ T1904] put_chars (drivers/char/virtio_console.c:1176) [ 29.311760][ T1904] ? __send_to_port (drivers/char/virtio_console.c:654) [ 29.311766][ T1904] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 29.311774][ T1904] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 29.311777][ T1904] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 29.311782][ T1904] console_emit_next_record (kernel/printk/printk.c:3183) [ 29.311786][ T1904] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 29.311788][ T1904] ? 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)) [ 29.311791][ T1904] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.311793][ T1904] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 29.311798][ T1904] console_flush_one_record (kernel/printk/printk.c:3268) [ 29.311802][ T1904] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 29.311804][ T1904] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.311809][ T1904] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 29.311812][ T1904] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 29.311814][ T1904] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.311815][ T1904] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 29.311819][ T1904] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 29.311821][ T1904] ? vprintk_emit (kernel/printk/printk.c:2478) [ 29.311824][ T1904] vprintk_emit (kernel/printk/printk.c:2479) [ 29.311827][ T1904] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 29.311828][ T1904] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 29.311831][ T1904] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 29.311833][ T1904] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 29.311838][ T1904] _printk (kernel/printk/printk.c:2504) [ 29.311841][ T1904] ? snapshot_read.cold (user.c:?) [ 29.311849][ T1904] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 29.311854][ T1904] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 29.311857][ T1904] br_device_event (net/bridge/br.c:111) [ 29.311859][ T1904] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 29.311864][ T1904] ? packet_sendmsg_spkt (af_packet.c:?) [ 29.311869][ T1904] notifier_call_chain (kernel/notifier.c:85) [ 29.311875][ T1904] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 29.311881][ T1904] ? netif_change_name (net/core/dev.c:1517) [ 29.311884][ T1904] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 29.311888][ T1904] ? __kernel_text_address (kernel/extable.c:79) [ 29.311890][ T1904] ? write_profile (profile.c:?) [ 29.311895][ T1904] netif_change_flags (net/core/dev.c:9882) [ 29.311899][ T1904] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 29.311902][ T1904] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 29.311905][ T1904] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 29.311906][ T1904] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 29.311908][ T1904] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 29.311911][ T1904] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 29.311913][ T1904] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 29.311915][ T1904] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 29.311917][ T1904] ? kasan_save_stack (mm/kasan/common.c:58) [ 29.311920][ T1904] ? kasan_save_stack (mm/kasan/common.c:57) [ 29.311921][ T1904] ? kasan_save_track (mm/kasan/common.c:78) [ 29.311922][ T1904] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 29.311925][ T1904] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.311926][ T1904] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 29.311929][ T1904] ? ___sys_sendmsg (net/socket.c:2758) [ 29.311933][ T1904] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 29.311935][ T1904] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 29.311938][ T1904] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.311940][ T1904] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 29.311942][ T1904] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.311943][ T1904] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.311944][ T1904] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 29.311947][ T1904] ? __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) [ 29.311948][ T1904] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 29.311950][ T1904] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 29.311953][ T1904] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 29.311957][ T1904] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.311959][ T1904] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 29.311965][ T1904] rtnl_newlink (net/core/rtnetlink.c:4215) [ 29.311970][ T1904] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 29.311972][ T1904] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.311976][ T1904] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 29.311978][ T1904] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 29.311981][ T1904] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 29.311982][ T1904] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 29.311986][ T1904] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 29.311988][ T1904] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 29.311992][ T1904] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 29.311993][ T1904] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.311997][ T1904] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 29.311999][ T1904] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 29.312003][ T1904] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 29.312006][ T1904] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 29.312009][ T1904] ? netlink_ack (./include/linux/skbuff.h:2718) [ 29.312015][ T1904] ? 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)) [ 29.312017][ T1904] ? 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)) [ 29.312022][ T1904] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 29.312026][ T1904] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 29.312029][ T1904] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 29.312033][ T1904] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 29.312037][ T1904] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 29.312041][ T1904] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 29.312042][ T1904] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 29.312048][ T1904] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 29.312051][ T1904] ____sys_sendmsg (net/socket.c:2713) [ 29.312053][ T1904] ? copy_msghdr_from_user (net/socket.c:2650) [ 29.312055][ T1904] ? sock_write_iter (net/socket.c:1269) [ 29.312057][ T1904] ? move_addr_to_kernel (net/socket.c:258) [ 29.312064][ T1904] ___sys_sendmsg (net/socket.c:2767) [ 29.312067][ T1904] ? copy_msghdr_from_user (net/socket.c:2619) [ 29.312084][ T1904] __sys_sendmsg (net/socket.c:2799) [ 29.312086][ T1904] ? __sys_sendmsg_sock (net/socket.c:2780) [ 29.312093][ T1904] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.312096][ T1904] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 29.312099][ T1904] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 29.312101][ T1904] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 29.312104][ T1904] RIP: 0033:0x7f1072ecd54e [ 29.312106][ T1904] 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 [ 29.312108][ T1904] RSP: 002b:00007fffed65a410 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 29.312110][ T1904] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1072ecd54e [ 29.312112][ T1904] RDX: 0000000000000000 RSI: 00007fffed65a4c0 RDI: 0000000000000005 [ 29.312112][ T1904] RBP: 00007fffed65a420 R08: 0000000000000000 R09: 0000000000000000 [ 29.312113][ T1904] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918694 [ 29.312114][ T1904] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffed65ab80 | [ 31.346466][ T62] softirqs last disabled at (143782): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 31.346469][ T62] Preemption disabled at: | [ 31.346469][ T62] 0x0 | [ 31.346485][ T62] Tainted: [W]=WARN [ 31.346486][ T62] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 31.346488][ T62] Workqueue: events_unbound linkwatch_event [ 31.346491][ T62] Call Trace: [ 31.346492][ T62] [ 31.346494][ T62] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 31.346501][ T62] __might_resched.cold (kernel/sched/core.c:9234) [ 31.346505][ T62] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 31.346509][ T62] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 31.346514][ T62] __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)) [ 31.346515][ T62] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 31.346522][ T62] ? 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) [ 31.346525][ T62] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 31.346529][ T62] put_chars (drivers/char/virtio_console.c:1176) [ 31.346531][ T62] ? __send_to_port (drivers/char/virtio_console.c:654) [ 31.346534][ T62] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 31.346537][ T62] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 31.346540][ T62] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 31.346544][ T62] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 31.346547][ T62] ? mark_usage (kernel/locking/lockdep.c:4690) [ 31.346549][ T62] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.346551][ T62] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.346555][ T62] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 31.346557][ T62] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 31.346561][ T62] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 31.346565][ T62] console_emit_next_record (kernel/printk/printk.c:3183) [ 31.346570][ T62] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 31.346571][ T62] ? 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)) [ 31.346575][ T62] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.346577][ T62] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 31.346581][ T62] console_flush_one_record (kernel/printk/printk.c:3268) [ 31.346585][ T62] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 31.346587][ T62] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.346592][ T62] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 31.346595][ T62] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 31.346597][ T62] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.346599][ T62] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 31.346602][ T62] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 31.346604][ T62] ? vprintk_emit (kernel/printk/printk.c:2478) [ 31.346607][ T62] vprintk_emit (kernel/printk/printk.c:2479) [ 31.346610][ T62] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 31.346612][ T62] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 31.346614][ T62] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 31.346618][ T62] _printk (kernel/printk/printk.c:2504) [ 31.346621][ T62] ? snapshot_read.cold (user.c:?) [ 31.346627][ T62] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 31.346630][ T62] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 31.346635][ T62] br_init_port (net/bridge/br_stp_if.c:39) [ 31.346637][ T62] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 31.346639][ T62] br_port_carrier_check (net/bridge/br_if.c:90) [ 31.346643][ T62] br_device_event (net/bridge/br.c:101) [ 31.346646][ T62] ? packet_sendmsg_spkt (af_packet.c:?) [ 31.346648][ T62] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 31.346654][ T62] notifier_call_chain (kernel/notifier.c:85) [ 31.346660][ T62] netif_state_change (net/core/dev.c:1625) [ 31.346665][ T62] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 31.346670][ T62] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 31.346672][ T62] __linkwatch_run_queue (net/core/link_watch.c:240) [ 31.346675][ T62] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 31.346677][ T62] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 31.346682][ T62] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 31.346684][ T62] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 31.346687][ T62] process_one_work (kernel/workqueue.c:3387) [ 31.346694][ T62] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 31.346697][ T62] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 31.346704][ T62] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 31.346712][ T62] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 31.346714][ T62] kthread (kernel/kthread.c:436) [ 31.346716][ T62] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 31.346719][ T62] ? kthread_affine_preferred (kernel/kthread.c:857) [ 31.346722][ T62] ret_from_fork (arch/x86/kernel/process.c:158) [ 31.346726][ T62] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 31.346729][ T62] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 31.346733][ T62] ? kthread_affine_preferred (kernel/kthread.c:857) [ 31.346736][ T62] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 32.736896][ T2213] softirqs last disabled at (17540): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 32.736898][ T2213] Preemption disabled at: | [ 32.736899][ T2213] 0x0 | [ 32.736909][ T2213] Tainted: [W]=WARN [ 32.736910][ T2213] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 32.736912][ T2213] Call Trace: [ 32.736913][ T2213] [ 32.736915][ T2213] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 32.736921][ T2213] __might_resched.cold (kernel/sched/core.c:9234) [ 32.736926][ T2213] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 32.736930][ T2213] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 32.736934][ T2213] __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)) [ 32.736936][ T2213] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 32.736942][ T2213] ? 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) [ 32.736945][ T2213] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 32.736948][ T2213] put_chars (drivers/char/virtio_console.c:1176) [ 32.736951][ T2213] ? __send_to_port (drivers/char/virtio_console.c:654) [ 32.736952][ T2213] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 32.736955][ T2213] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 32.736961][ T2213] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 32.736971][ T2213] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 32.736973][ T2213] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 32.736975][ T2213] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 32.736979][ T2213] console_emit_next_record (kernel/printk/printk.c:3183) [ 32.736983][ T2213] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 32.736985][ T2213] ? 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)) [ 32.736988][ T2213] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 32.736990][ T2213] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 32.736993][ T2213] console_flush_one_record (kernel/printk/printk.c:3268) [ 32.736998][ T2213] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 32.736999][ T2213] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 32.737005][ T2213] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 32.737007][ T2213] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 32.737009][ T2213] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 32.737011][ T2213] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 32.737014][ T2213] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 32.737016][ T2213] ? vprintk_emit (kernel/printk/printk.c:2478) [ 32.737019][ T2213] vprintk_emit (kernel/printk/printk.c:2479) [ 32.737022][ T2213] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 32.737024][ T2213] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 32.737026][ T2213] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 32.737031][ T2213] _printk (kernel/printk/printk.c:2504) [ 32.737035][ T2213] ? snapshot_read.cold (user.c:?) [ 32.737040][ T2213] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 32.737044][ T2213] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 32.737049][ T2213] br_init_port (net/bridge/br_stp_if.c:39) [ 32.737051][ T2213] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 32.737053][ T2213] br_device_event (net/bridge/br.c:120) [ 32.737056][ T2213] ? packet_sendmsg_spkt (af_packet.c:?) [ 32.737058][ T2213] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 32.737064][ T2213] notifier_call_chain (kernel/notifier.c:85) [ 32.737070][ T2213] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 32.737075][ T2213] ? netif_change_name (net/core/dev.c:1517) [ 32.737078][ T2213] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 32.737081][ T2213] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 32.737084][ T2213] ? __kernel_text_address (kernel/extable.c:79) [ 32.737085][ T2213] ? write_profile (profile.c:?) [ 32.737090][ T2213] netif_change_flags (net/core/dev.c:9882) [ 32.737094][ T2213] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 32.737097][ T2213] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 32.737099][ T2213] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 32.737100][ T2213] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 32.737102][ T2213] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 32.737105][ T2213] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 32.737107][ T2213] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 32.737109][ T2213] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 32.737111][ T2213] ? kasan_save_stack (mm/kasan/common.c:58) [ 32.737114][ T2213] ? kasan_save_stack (mm/kasan/common.c:57) [ 32.737115][ T2213] ? kasan_save_track (mm/kasan/common.c:78) [ 32.737116][ T2213] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 32.737118][ T2213] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 32.737120][ T2213] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 32.737123][ T2213] ? ___sys_sendmsg (net/socket.c:2758) [ 32.737127][ T2213] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 32.737129][ T2213] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 32.737131][ T2213] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 32.737133][ T2213] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 32.737135][ T2213] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 32.737136][ T2213] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 32.737137][ T2213] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 32.737140][ T2213] ? __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) [ 32.737142][ T2213] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 32.737144][ T2213] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 32.737147][ T2213] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 32.737151][ T2213] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 32.737153][ T2213] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 32.737158][ T2213] rtnl_newlink (net/core/rtnetlink.c:4215) [ 32.737163][ T2213] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 32.737165][ T2213] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 32.737170][ T2213] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 32.737172][ T2213] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 32.737174][ T2213] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 32.737175][ T2213] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 32.737179][ T2213] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 32.737181][ T2213] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 32.737184][ T2213] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 32.737186][ T2213] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 32.737190][ T2213] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 32.737192][ T2213] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 32.737195][ T2213] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 32.737197][ T2213] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 32.737200][ T2213] ? netlink_ack (./include/linux/skbuff.h:2718) [ 32.737206][ T2213] ? 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)) [ 32.737208][ T2213] ? 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)) [ 32.737212][ T2213] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 32.737216][ T2213] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 32.737219][ T2213] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 32.737223][ T2213] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 32.737227][ T2213] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 32.737230][ T2213] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 32.737232][ T2213] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 32.737237][ T2213] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 32.737240][ T2213] ____sys_sendmsg (net/socket.c:2713) [ 32.737242][ T2213] ? copy_msghdr_from_user (net/socket.c:2650) [ 32.737244][ T2213] ? sock_write_iter (net/socket.c:1269) [ 32.737246][ T2213] ? move_addr_to_kernel (net/socket.c:258) [ 32.737253][ T2213] ___sys_sendmsg (net/socket.c:2767) [ 32.737256][ T2213] ? copy_msghdr_from_user (net/socket.c:2619) [ 32.737271][ T2213] __sys_sendmsg (net/socket.c:2799) [ 32.737274][ T2213] ? __sys_sendmsg_sock (net/socket.c:2780) [ 32.737280][ T2213] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 32.737283][ T2213] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 32.737286][ T2213] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 32.737289][ T2213] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 32.737291][ T2213] RIP: 0033:0x7fdeedd6354e [ 32.737294][ T2213] 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 [ 32.737296][ T2213] RSP: 002b:00007ffd8542d600 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 32.737298][ T2213] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fdeedd6354e [ 32.737300][ T2213] RDX: 0000000000000000 RSI: 00007ffd8542d6b0 RDI: 0000000000000005 [ 32.737301][ T2213] RBP: 00007ffd8542d610 R08: 0000000000000000 R09: 0000000000000000 [ 32.737301][ T2213] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918698 [ 32.737302][ T2213] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd8542dd70 | [ 34.173308][ T46] softirqs last disabled at (288314): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 34.173311][ T46] Preemption disabled at: | [ 34.173311][ T46] 0x0 | [ 34.173322][ T46] Tainted: [W]=WARN [ 34.173323][ T46] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 34.173324][ T46] Workqueue: events_unbound linkwatch_event [ 34.173327][ T46] Call Trace: [ 34.173329][ T46] [ 34.173331][ T46] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 34.173337][ T46] __might_resched.cold (kernel/sched/core.c:9234) [ 34.173342][ T46] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 34.173346][ T46] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 34.173350][ T46] __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)) [ 34.173352][ T46] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 34.173359][ T46] ? 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) [ 34.173361][ T46] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 34.173365][ T46] put_chars (drivers/char/virtio_console.c:1176) [ 34.173368][ T46] ? __send_to_port (drivers/char/virtio_console.c:654) [ 34.173370][ T46] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 34.173374][ T46] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 34.173376][ T46] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 34.173380][ T46] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 34.173384][ T46] ? mark_usage (kernel/locking/lockdep.c:4690) [ 34.173386][ T46] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.173388][ T46] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.173392][ T46] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 34.173394][ T46] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.173399][ T46] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 34.173403][ T46] console_emit_next_record (kernel/printk/printk.c:3183) [ 34.173407][ T46] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 34.173409][ T46] ? 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)) [ 34.173412][ T46] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.173414][ T46] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 34.173418][ T46] console_flush_one_record (kernel/printk/printk.c:3268) [ 34.173422][ T46] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 34.173424][ T46] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.173430][ T46] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 34.173433][ T46] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 34.173434][ T46] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.173436][ T46] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 34.173440][ T46] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 34.173442][ T46] ? vprintk_emit (kernel/printk/printk.c:2478) [ 34.173445][ T46] vprintk_emit (kernel/printk/printk.c:2479) [ 34.173448][ T46] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 34.173450][ T46] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 34.173452][ T46] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 34.173456][ T46] _printk (kernel/printk/printk.c:2504) [ 34.173460][ T46] ? snapshot_read.cold (user.c:?) [ 34.173465][ T46] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.173469][ T46] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 34.173473][ T46] br_init_port (net/bridge/br_stp_if.c:39) [ 34.173476][ T46] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 34.173478][ T46] br_port_carrier_check (net/bridge/br_if.c:90) [ 34.173482][ T46] br_device_event (net/bridge/br.c:101) [ 34.173491][ T46] ? packet_sendmsg_spkt (af_packet.c:?) [ 34.173493][ T46] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 34.173500][ T46] notifier_call_chain (kernel/notifier.c:85) [ 34.173506][ T46] netif_state_change (net/core/dev.c:1625) [ 34.173511][ T46] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 34.173516][ T46] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 34.173518][ T46] __linkwatch_run_queue (net/core/link_watch.c:240) [ 34.173521][ T46] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 34.173523][ T46] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.173528][ T46] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 34.173530][ T46] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 34.173533][ T46] process_one_work (kernel/workqueue.c:3387) [ 34.173540][ T46] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 34.173543][ T46] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.173551][ T46] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 34.173558][ T46] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 34.173560][ T46] kthread (kernel/kthread.c:436) [ 34.173562][ T46] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 34.173565][ T46] ? kthread_affine_preferred (kernel/kthread.c:857) [ 34.173568][ T46] ret_from_fork (arch/x86/kernel/process.c:158) [ 34.173572][ T46] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 34.173576][ T46] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 34.173579][ T46] ? kthread_affine_preferred (kernel/kthread.c:857) [ 34.173582][ T46] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 35.209611][ T39] softirqs last disabled at (340226): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 35.209614][ T39] Preemption disabled at: | [ 35.209615][ T39] 0x0 | [ 35.209629][ T39] Tainted: [W]=WARN [ 35.209630][ T39] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 35.209632][ T39] Workqueue: events_unbound linkwatch_event [ 35.209636][ T39] Call Trace: [ 35.209638][ T39] [ 35.209640][ T39] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 35.209649][ T39] __might_resched.cold (kernel/sched/core.c:9234) [ 35.209655][ T39] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 35.209660][ T39] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 35.209667][ T39] __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)) [ 35.209670][ T39] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 35.209679][ T39] ? 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) [ 35.209682][ T39] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 35.209688][ T39] put_chars (drivers/char/virtio_console.c:1176) [ 35.209692][ T39] ? __send_to_port (drivers/char/virtio_console.c:654) [ 35.209697][ T39] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 35.209701][ T39] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 35.209705][ T39] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 35.209712][ T39] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 35.209716][ T39] ? mark_usage (kernel/locking/lockdep.c:4690) [ 35.209719][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 35.209721][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 35.209729][ T39] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 35.209731][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 35.209738][ T39] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 35.209745][ T39] console_emit_next_record (kernel/printk/printk.c:3183) [ 35.209751][ T39] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 35.209754][ T39] ? 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)) [ 35.209759][ T39] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 35.209762][ T39] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 35.209769][ T39] console_flush_one_record (kernel/printk/printk.c:3268) [ 35.209775][ T39] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 35.209778][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 35.209787][ T39] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 35.209791][ T39] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 35.209794][ T39] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 35.209797][ T39] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 35.209803][ T39] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 35.209805][ T39] ? vprintk_emit (kernel/printk/printk.c:2478) [ 35.209810][ T39] vprintk_emit (kernel/printk/printk.c:2479) [ 35.209816][ T39] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 35.209819][ T39] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 35.209822][ T39] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 35.209828][ T39] _printk (kernel/printk/printk.c:2504) [ 35.209833][ T39] ? snapshot_read.cold (user.c:?) [ 35.209841][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 35.209848][ T39] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 35.209854][ T39] br_init_port (net/bridge/br_stp_if.c:39) [ 35.209858][ T39] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 35.209861][ T39] br_port_carrier_check (net/bridge/br_if.c:90) [ 35.209867][ T39] br_device_event (net/bridge/br.c:101) [ 35.209872][ T39] ? packet_sendmsg_spkt (af_packet.c:?) [ 35.209874][ T39] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 35.209886][ T39] notifier_call_chain (kernel/notifier.c:85) [ 35.209895][ T39] netif_state_change (net/core/dev.c:1625) [ 35.209903][ T39] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 35.209911][ T39] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 35.209914][ T39] __linkwatch_run_queue (net/core/link_watch.c:240) [ 35.209919][ T39] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 35.209924][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 35.209931][ T39] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 35.209934][ T39] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 35.209940][ T39] process_one_work (kernel/workqueue.c:3387) [ 35.209952][ T39] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 35.209957][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 35.209973][ T39] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 35.209986][ T39] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 35.209989][ T39] kthread (kernel/kthread.c:436) [ 35.209992][ T39] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 35.209996][ T39] ? kthread_affine_preferred (kernel/kthread.c:857) [ 35.210001][ T39] ret_from_fork (arch/x86/kernel/process.c:158) [ 35.210007][ T39] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 35.210012][ T39] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 35.210017][ T39] ? kthread_affine_preferred (kernel/kthread.c:857) [ 35.210021][ T39] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 36.503878][ T36] softirqs last disabled at (142190): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 36.503881][ T36] Preemption disabled at: | [ 36.503881][ T36] 0x0 | [ 36.503892][ T36] Tainted: [W]=WARN [ 36.503892][ T36] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 36.503894][ T36] Workqueue: events_unbound linkwatch_event [ 36.503897][ T36] Call Trace: [ 36.503899][ T36] [ 36.503900][ T36] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 36.503907][ T36] __might_resched.cold (kernel/sched/core.c:9234) [ 36.503911][ T36] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 36.503915][ T36] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 36.503919][ T36] __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)) [ 36.503921][ T36] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 36.503928][ T36] ? 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) [ 36.503931][ T36] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 36.503935][ T36] put_chars (drivers/char/virtio_console.c:1176) [ 36.503937][ T36] ? __send_to_port (drivers/char/virtio_console.c:654) [ 36.503940][ T36] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 36.503943][ T36] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 36.503946][ T36] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 36.503950][ T36] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 36.503954][ T36] ? mark_usage (kernel/locking/lockdep.c:4690) [ 36.503955][ T36] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 36.503957][ T36] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 36.503962][ T36] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 36.503963][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 36.503970][ T36] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 36.503974][ T36] console_emit_next_record (kernel/printk/printk.c:3183) [ 36.503978][ T36] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 36.503980][ T36] ? 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)) [ 36.503984][ T36] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 36.503985][ T36] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 36.503989][ T36] console_flush_one_record (kernel/printk/printk.c:3268) [ 36.503994][ T36] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 36.503996][ T36] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 36.504001][ T36] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 36.504004][ T36] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 36.504006][ T36] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 36.504007][ T36] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 36.504011][ T36] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 36.504013][ T36] ? vprintk_emit (kernel/printk/printk.c:2478) [ 36.504016][ T36] vprintk_emit (kernel/printk/printk.c:2479) [ 36.504019][ T36] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 36.504021][ T36] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 36.504023][ T36] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 36.504027][ T36] _printk (kernel/printk/printk.c:2504) [ 36.504030][ T36] ? snapshot_read.cold (user.c:?) [ 36.504036][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 36.504040][ T36] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 36.504044][ T36] br_init_port (net/bridge/br_stp_if.c:39) [ 36.504046][ T36] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 36.504048][ T36] br_port_carrier_check (net/bridge/br_if.c:90) [ 36.504052][ T36] br_device_event (net/bridge/br.c:101) [ 36.504055][ T36] ? packet_sendmsg_spkt (af_packet.c:?) [ 36.504057][ T36] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 36.504064][ T36] notifier_call_chain (kernel/notifier.c:85) [ 36.504069][ T36] netif_state_change (net/core/dev.c:1625) [ 36.504074][ T36] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 36.504079][ T36] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 36.504081][ T36] __linkwatch_run_queue (net/core/link_watch.c:240) [ 36.504084][ T36] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 36.504087][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 36.504091][ T36] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 36.504093][ T36] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 36.504097][ T36] process_one_work (kernel/workqueue.c:3387) [ 36.504103][ T36] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 36.504106][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 36.504114][ T36] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 36.504121][ T36] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 36.504123][ T36] kthread (kernel/kthread.c:436) [ 36.504125][ T36] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 36.504129][ T36] ? kthread_affine_preferred (kernel/kthread.c:857) [ 36.504132][ T36] ret_from_fork (arch/x86/kernel/process.c:158) [ 36.504136][ T36] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 36.504139][ T36] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 36.504143][ T36] ? kthread_affine_preferred (kernel/kthread.c:857) [ 36.504145][ T36] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 37.873219][ T2653] softirqs last disabled at (12968): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 37.873221][ T2653] Preemption disabled at: | [ 37.873222][ T2653] 0x0 | [ 37.873232][ T2653] Tainted: [W]=WARN [ 37.873233][ T2653] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 37.873235][ T2653] Call Trace: [ 37.873237][ T2653] [ 37.873238][ T2653] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 37.873245][ T2653] __might_resched.cold (kernel/sched/core.c:9234) [ 37.873249][ T2653] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 37.873253][ T2653] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 37.873258][ T2653] __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)) [ 37.873260][ T2653] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 37.873267][ T2653] ? 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) [ 37.873270][ T2653] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 37.873273][ T2653] put_chars (drivers/char/virtio_console.c:1176) [ 37.873276][ T2653] ? __send_to_port (drivers/char/virtio_console.c:654) [ 37.873277][ T2653] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 37.873281][ T2653] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 37.873286][ T2653] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 37.873294][ T2653] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 37.873296][ T2653] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 37.873298][ T2653] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 37.873302][ T2653] console_emit_next_record (kernel/printk/printk.c:3183) [ 37.873306][ T2653] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 37.873308][ T2653] ? 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)) [ 37.873311][ T2653] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 37.873313][ T2653] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 37.873317][ T2653] console_flush_one_record (kernel/printk/printk.c:3268) [ 37.873321][ T2653] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 37.873323][ T2653] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 37.873328][ T2653] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 37.873331][ T2653] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 37.873333][ T2653] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 37.873334][ T2653] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 37.873338][ T2653] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 37.873340][ T2653] ? vprintk_emit (kernel/printk/printk.c:2478) [ 37.873342][ T2653] vprintk_emit (kernel/printk/printk.c:2479) [ 37.873345][ T2653] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 37.873347][ T2653] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 37.873349][ T2653] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 37.873354][ T2653] _printk (kernel/printk/printk.c:2504) [ 37.873358][ T2653] ? snapshot_read.cold (user.c:?) [ 37.873363][ T2653] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 37.873367][ T2653] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 37.873371][ T2653] br_init_port (net/bridge/br_stp_if.c:39) [ 37.873374][ T2653] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 37.873375][ T2653] br_device_event (net/bridge/br.c:120) [ 37.873378][ T2653] ? packet_sendmsg_spkt (af_packet.c:?) [ 37.873380][ T2653] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 37.873387][ T2653] notifier_call_chain (kernel/notifier.c:85) [ 37.873393][ T2653] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 37.873398][ T2653] ? netif_change_name (net/core/dev.c:1517) [ 37.873401][ T2653] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 37.873404][ T2653] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 37.873407][ T2653] ? __kernel_text_address (kernel/extable.c:79) [ 37.873408][ T2653] ? write_profile (profile.c:?) [ 37.873413][ T2653] netif_change_flags (net/core/dev.c:9882) [ 37.873417][ T2653] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 37.873420][ T2653] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 37.873423][ T2653] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 37.873424][ T2653] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 37.873426][ T2653] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 37.873429][ T2653] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 37.873431][ T2653] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 37.873433][ T2653] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 37.873435][ T2653] ? kasan_save_stack (mm/kasan/common.c:58) [ 37.873438][ T2653] ? kasan_save_stack (mm/kasan/common.c:57) [ 37.873439][ T2653] ? kasan_save_track (mm/kasan/common.c:78) [ 37.873440][ T2653] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 37.873442][ T2653] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 37.873444][ T2653] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 37.873447][ T2653] ? ___sys_sendmsg (net/socket.c:2758) [ 37.873451][ T2653] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 37.873453][ T2653] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 37.873455][ T2653] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 37.873457][ T2653] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 37.873459][ T2653] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 37.873460][ T2653] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 37.873461][ T2653] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 37.873464][ T2653] ? __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) [ 37.873467][ T2653] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 37.873468][ T2653] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 37.873472][ T2653] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 37.873475][ T2653] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 37.873477][ T2653] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 37.873483][ T2653] rtnl_newlink (net/core/rtnetlink.c:4215) [ 37.873488][ T2653] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 37.873490][ T2653] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 37.873494][ T2653] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 37.873496][ T2653] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 37.873504][ T2653] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 37.873506][ T2653] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 37.873510][ T2653] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 37.873512][ T2653] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 37.873515][ T2653] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 37.873516][ T2653] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 37.873521][ T2653] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 37.873522][ T2653] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 37.873526][ T2653] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 37.873528][ T2653] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 37.873531][ T2653] ? netlink_ack (./include/linux/skbuff.h:2718) [ 37.873537][ T2653] ? 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)) [ 37.873539][ T2653] ? 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)) [ 37.873543][ T2653] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 37.873547][ T2653] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 37.873550][ T2653] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 37.873554][ T2653] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 37.873558][ T2653] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 37.873562][ T2653] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 37.873563][ T2653] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 37.873569][ T2653] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 37.873572][ T2653] ____sys_sendmsg (net/socket.c:2713) [ 37.873574][ T2653] ? copy_msghdr_from_user (net/socket.c:2650) [ 37.873576][ T2653] ? sock_write_iter (net/socket.c:1269) [ 37.873578][ T2653] ? move_addr_to_kernel (net/socket.c:258) [ 37.873585][ T2653] ___sys_sendmsg (net/socket.c:2767) [ 37.873588][ T2653] ? copy_msghdr_from_user (net/socket.c:2619) [ 37.873604][ T2653] __sys_sendmsg (net/socket.c:2799) [ 37.873607][ T2653] ? __sys_sendmsg_sock (net/socket.c:2780) [ 37.873613][ T2653] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 37.873616][ T2653] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 37.873619][ T2653] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 37.873622][ T2653] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 37.873624][ T2653] RIP: 0033:0x7f124533354e [ 37.873626][ T2653] 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 [ 37.873628][ T2653] RSP: 002b:00007ffd66ec6610 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 37.873631][ T2653] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f124533354e [ 37.873632][ T2653] RDX: 0000000000000000 RSI: 00007ffd66ec66c0 RDI: 0000000000000005 [ 37.873633][ T2653] RBP: 00007ffd66ec6620 R08: 0000000000000000 R09: 0000000000000000 [ 37.873633][ T2653] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91869d [ 37.873634][ T2653] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd66ec6d80 | [ 38.913927][ T62] softirqs last disabled at (247398): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 38.913930][ T62] Preemption disabled at: | [ 38.913930][ T62] 0x0 | [ 38.913942][ T62] Tainted: [W]=WARN [ 38.913943][ T62] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 38.913944][ T62] Workqueue: events_unbound linkwatch_event [ 38.913948][ T62] Call Trace: [ 38.913949][ T62] [ 38.913951][ T62] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 38.913958][ T62] __might_resched.cold (kernel/sched/core.c:9234) [ 38.913962][ T62] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 38.913966][ T62] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 38.913973][ T62] __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)) [ 38.913975][ T62] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 38.913981][ T62] ? 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) [ 38.913984][ T62] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 38.913988][ T62] put_chars (drivers/char/virtio_console.c:1176) [ 38.913990][ T62] ? __send_to_port (drivers/char/virtio_console.c:654) [ 38.913993][ T62] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 38.913996][ T62] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 38.913999][ T62] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 38.914003][ T62] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 38.914007][ T62] ? mark_usage (kernel/locking/lockdep.c:4690) [ 38.914009][ T62] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 38.914011][ T62] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 38.914015][ T62] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 38.914017][ T62] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 38.914021][ T62] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 38.914025][ T62] console_emit_next_record (kernel/printk/printk.c:3183) [ 38.914029][ T62] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 38.914031][ T62] ? 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)) [ 38.914034][ T62] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.914036][ T62] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 38.914040][ T62] console_flush_one_record (kernel/printk/printk.c:3268) [ 38.914045][ T62] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 38.914047][ T62] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 38.914052][ T62] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 38.914055][ T62] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 38.914057][ T62] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.914059][ T62] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 38.914063][ T62] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 38.914064][ T62] ? vprintk_emit (kernel/printk/printk.c:2478) [ 38.914067][ T62] vprintk_emit (kernel/printk/printk.c:2479) [ 38.914071][ T62] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 38.914073][ T62] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 38.914075][ T62] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 38.914078][ T62] _printk (kernel/printk/printk.c:2504) [ 38.914082][ T62] ? snapshot_read.cold (user.c:?) [ 38.914087][ T62] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 38.914091][ T62] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 38.914096][ T62] br_init_port (net/bridge/br_stp_if.c:39) [ 38.914098][ T62] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 38.914100][ T62] br_port_carrier_check (net/bridge/br_if.c:90) [ 38.914104][ T62] br_device_event (net/bridge/br.c:101) [ 38.914107][ T62] ? packet_sendmsg_spkt (af_packet.c:?) [ 38.914109][ T62] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 38.914116][ T62] notifier_call_chain (kernel/notifier.c:85) [ 38.914122][ T62] netif_state_change (net/core/dev.c:1625) [ 38.914127][ T62] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 38.914132][ T62] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 38.914134][ T62] __linkwatch_run_queue (net/core/link_watch.c:240) [ 38.914137][ T62] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 38.914139][ T62] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 38.914144][ T62] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 38.914146][ T62] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 38.914149][ T62] process_one_work (kernel/workqueue.c:3387) [ 38.914156][ T62] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 38.914159][ T62] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 38.914166][ T62] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 38.914174][ T62] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 38.914176][ T62] kthread (kernel/kthread.c:436) [ 38.914178][ T62] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 38.914181][ T62] ? kthread_affine_preferred (kernel/kthread.c:857) [ 38.914184][ T62] ret_from_fork (arch/x86/kernel/process.c:158) [ 38.914188][ T62] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 38.914192][ T62] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 38.914195][ T62] ? kthread_affine_preferred (kernel/kthread.c:857) [ 38.914198][ T62] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 39.948373][ T2790] softirqs last disabled at (13668): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 39.948375][ T2790] Preemption disabled at: | [ 39.948376][ T2790] vprintk_emit (kernel/printk/printk.c:2471) | [ 39.948385][ T2790] Tainted: [W]=WARN [ 39.948385][ T2790] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 39.948387][ T2790] Call Trace: [ 39.948389][ T2790] [ 39.948390][ T2790] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 39.948396][ T2790] ? vprintk_emit (kernel/printk/printk.c:2471) [ 39.948398][ T2790] __might_resched.cold (kernel/sched/core.c:9234) [ 39.948403][ T2790] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 39.948407][ T2790] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 39.948411][ T2790] __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)) [ 39.948413][ T2790] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 39.948419][ T2790] ? 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) [ 39.948422][ T2790] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 39.948426][ T2790] put_chars (drivers/char/virtio_console.c:1176) [ 39.948428][ T2790] ? __send_to_port (drivers/char/virtio_console.c:654) [ 39.948431][ T2790] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 39.948437][ T2790] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 39.948444][ T2790] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 39.948447][ T2790] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.948450][ T2790] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 39.948454][ T2790] console_emit_next_record (kernel/printk/printk.c:3183) [ 39.948458][ T2790] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 39.948460][ T2790] ? 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)) [ 39.948463][ T2790] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.948465][ T2790] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 39.948469][ T2790] console_flush_one_record (kernel/printk/printk.c:3268) [ 39.948473][ T2790] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 39.948475][ T2790] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 39.948481][ T2790] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 39.948484][ T2790] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 39.948485][ T2790] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.948487][ T2790] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 39.948491][ T2790] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 39.948493][ T2790] ? vprintk_emit (kernel/printk/printk.c:2478) [ 39.948495][ T2790] vprintk_emit (kernel/printk/printk.c:2479) [ 39.948499][ T2790] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 39.948500][ T2790] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 39.948501][ T2790] ? netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 39.948504][ T2790] ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 39.948511][ T2790] ? netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 39.948513][ T2790] ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 39.948516][ T2790] ? ____sys_sendmsg (net/socket.c:2713) [ 39.948517][ T2790] ? ___sys_sendmsg (net/socket.c:2767) [ 39.948521][ T2790] _printk (kernel/printk/printk.c:2504) [ 39.948524][ T2790] ? snapshot_read.cold (user.c:?) [ 39.948529][ T2790] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 39.948532][ T2790] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 39.948536][ T2790] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 39.948539][ T2790] ? netdev_notice (net/core/dev.c:13194) [ 39.948543][ T2790] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.948545][ T2790] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 39.948548][ T2790] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 39.948550][ T2790] ? 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) [ 39.948552][ T2790] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 39.948556][ T2790] dev_set_allmulti (net/core/dev_api.c:315) [ 39.948560][ T2790] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 39.948566][ T2790] br_del_if (net/bridge/br_if.c:732) [ 39.948568][ T2790] ? rtnl_is_locked (net/core/rtnetlink.c:169) [ 39.948571][ T2790] do_set_master (net/core/rtnetlink.c:3055) [ 39.948575][ T2790] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 39.948578][ T2790] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 39.948581][ T2790] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 39.948583][ T2790] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 39.948586][ T2790] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 39.948589][ T2790] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 39.948591][ T2790] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 39.948593][ T2790] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 39.948595][ T2790] ? kasan_save_stack (mm/kasan/common.c:58) [ 39.948598][ T2790] ? kasan_save_stack (mm/kasan/common.c:57) [ 39.948599][ T2790] ? kasan_save_track (mm/kasan/common.c:78) [ 39.948600][ T2790] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 39.948602][ T2790] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 39.948604][ T2790] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 39.948606][ T2790] ? ___sys_sendmsg (net/socket.c:2758) [ 39.948610][ T2790] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 39.948612][ T2790] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 39.948614][ T2790] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.948616][ T2790] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 39.948618][ T2790] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.948619][ T2790] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.948620][ T2790] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 39.948623][ T2790] ? __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) [ 39.948625][ T2790] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 39.948627][ T2790] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 39.948630][ T2790] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 39.948632][ T2790] ? nla_get_range_signed (lib/nlattr.c:270) [ 39.948637][ T2790] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.948639][ T2790] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 39.948644][ T2790] rtnl_newlink (net/core/rtnetlink.c:4215) [ 39.948649][ T2790] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 39.948651][ T2790] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 39.948656][ T2790] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 39.948658][ T2790] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 39.948660][ T2790] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 39.948661][ T2790] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 39.948665][ T2790] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 39.948667][ T2790] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 39.948670][ T2790] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 39.948672][ T2790] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 39.948676][ T2790] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 39.948678][ T2790] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 39.948681][ T2790] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 39.948683][ T2790] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 39.948686][ T2790] ? netlink_ack (./include/linux/skbuff.h:2718) [ 39.948693][ T2790] ? 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)) [ 39.948695][ T2790] ? 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)) [ 39.948699][ T2790] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 39.948703][ T2790] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 39.948705][ T2790] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 39.948710][ T2790] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 39.948714][ T2790] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 39.948717][ T2790] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 39.948719][ T2790] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 39.948724][ T2790] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 39.948727][ T2790] ____sys_sendmsg (net/socket.c:2713) [ 39.948729][ T2790] ? copy_msghdr_from_user (net/socket.c:2650) [ 39.948731][ T2790] ? sock_write_iter (net/socket.c:1269) [ 39.948733][ T2790] ? move_addr_to_kernel (net/socket.c:258) [ 39.948740][ T2790] ___sys_sendmsg (net/socket.c:2767) [ 39.948743][ T2790] ? copy_msghdr_from_user (net/socket.c:2619) [ 39.948759][ T2790] __sys_sendmsg (net/socket.c:2799) [ 39.948762][ T2790] ? __sys_sendmsg_sock (net/socket.c:2780) [ 39.948768][ T2790] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.948771][ T2790] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 39.948774][ T2790] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 39.948777][ T2790] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 39.948780][ T2790] RIP: 0033:0x7f256c9cd54e [ 39.948783][ T2790] 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 [ 39.948785][ T2790] RSP: 002b:00007fffc5af2dc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 39.948788][ T2790] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f256c9cd54e [ 39.948789][ T2790] RDX: 0000000000000000 RSI: 00007fffc5af2e70 RDI: 0000000000000005 [ 39.948790][ T2790] RBP: 00007fffc5af2dd0 R08: 0000000000000000 R09: 0000000000000000 [ 39.948791][ T2790] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91869f Finger prints: br_port_carrier_check:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print br_device_event:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print __alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars