====================================== | [ 10.162161][ T237] softirqs last disabled at (17803): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 10.162164][ T237] Preemption disabled at: | [ 10.162164][ T237] vprintk_emit (kernel/printk/printk.c:2471) | [ 10.162173][ T237] Tainted: [W]=WARN [ 10.162174][ T237] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.162176][ T237] Call Trace: [ 10.162178][ T237] [ 10.162179][ T237] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.162185][ T237] ? vprintk_emit (kernel/printk/printk.c:2471) [ 10.162187][ T237] __might_resched.cold (kernel/sched/core.c:9234) [ 10.162191][ T237] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.162196][ T237] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.162200][ T237] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 10.162202][ T237] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.162209][ T237] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 10.162212][ T237] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.162215][ T237] put_chars (drivers/char/virtio_console.c:1176) [ 10.162218][ T237] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.162221][ T237] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 10.162226][ T237] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.162234][ T237] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.162237][ T237] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.162240][ T237] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.162244][ T237] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.162248][ T237] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.162250][ T237] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 10.162253][ T237] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.162255][ T237] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.162259][ T237] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.162263][ T237] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.162265][ T237] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.162271][ T237] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.162273][ T237] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.162275][ T237] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.162277][ T237] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 10.162281][ T237] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.162283][ T237] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.162286][ T237] vprintk_emit (kernel/printk/printk.c:2479) [ 10.162289][ T237] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.162291][ T237] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.162292][ T237] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 10.162297][ T237] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 10.162300][ T237] _printk (kernel/printk/printk.c:2504) [ 10.162304][ T237] ? snapshot_read.cold (user.c:?) [ 10.162308][ T237] ? br_multicast_flood (??:?) [ 10.162311][ T237] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 10.162312][ T237] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 10.162314][ T237] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 10.162318][ T237] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 10.162323][ T237] br_init_port (net/bridge/br_stp_if.c:39) [ 10.162325][ T237] new_nbp (net/bridge/br_if.c:449) [ 10.162329][ T237] br_add_if (net/bridge/br_if.c:592) [ 10.162331][ T237] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 10.162335][ T237] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 10.162341][ T237] do_set_master (net/core/rtnetlink.c:3071) [ 10.162344][ T237] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 10.162347][ T237] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 10.162351][ T237] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 10.162352][ T237] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 10.162355][ T237] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 10.162358][ T237] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.162360][ T237] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 10.162362][ T237] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.162365][ T237] ? kasan_save_stack (mm/kasan/common.c:58) [ 10.162367][ T237] ? kasan_save_stack (mm/kasan/common.c:57) [ 10.162368][ T237] ? kasan_save_track (mm/kasan/common.c:78) [ 10.162370][ T237] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 10.162372][ T237] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.162374][ T237] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 10.162377][ T237] ? ___sys_sendmsg (net/socket.c:2758) [ 10.162382][ T237] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.162384][ T237] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.162386][ T237] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.162388][ T237] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.162390][ T237] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.162391][ T237] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.162393][ T237] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 10.162395][ T237] ? __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) [ 10.162396][ T237] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 10.162398][ T237] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.162402][ T237] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 10.162403][ T237] ? nla_get_range_signed (lib/nlattr.c:270) [ 10.162408][ T237] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.162410][ T237] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 10.162416][ T237] rtnl_newlink (net/core/rtnetlink.c:4215) [ 10.162421][ T237] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.162423][ T237] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.162428][ T237] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.162430][ T237] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.162432][ T237] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.162434][ T237] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.162438][ T237] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.162440][ T237] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 10.162443][ T237] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.162445][ T237] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.162449][ T237] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.162451][ T237] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.162455][ T237] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 10.162458][ T237] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.162461][ T237] ? netlink_ack (./include/linux/skbuff.h:2718) [ 10.162468][ T237] ? 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)) [ 10.162470][ T237] ? 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)) [ 10.162474][ T237] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 10.162479][ T237] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 10.162481][ T237] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.162486][ T237] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 10.162490][ T237] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 10.162494][ T237] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.162496][ T237] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 10.162501][ T237] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 10.162504][ T237] ____sys_sendmsg (net/socket.c:2713) [ 10.162506][ T237] ? copy_msghdr_from_user (net/socket.c:2650) [ 10.162509][ T237] ? sock_write_iter (net/socket.c:1269) [ 10.162510][ T237] ? move_addr_to_kernel (net/socket.c:258) [ 10.162518][ T237] ___sys_sendmsg (net/socket.c:2767) [ 10.162521][ T237] ? copy_msghdr_from_user (net/socket.c:2619) [ 10.162537][ T237] __sys_sendmsg (net/socket.c:2799) [ 10.162540][ T237] ? __sys_sendmsg_sock (net/socket.c:2780) [ 10.162546][ T237] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.162549][ T237] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.162552][ T237] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.162555][ T237] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.162558][ T237] RIP: 0033:0x7f9b709fc54e [ 10.162561][ T237] 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 [ 10.162563][ T237] RSP: 002b:00007ffe20f64720 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 10.162566][ T237] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f9b709fc54e [ 10.162567][ T237] RDX: 0000000000000000 RSI: 00007ffe20f647d0 RDI: 0000000000000005 [ 10.162568][ T237] RBP: 00007ffe20f64730 R08: 0000000000000000 R09: 0000000000000000 [ 10.162569][ T237] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910827 [ 10.162570][ T237] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe20f64e90 | [ 11.898328][ T389] softirqs last disabled at (21646): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 11.898330][ T389] Preemption disabled at: | [ 11.898330][ T389] 0x0 | [ 11.898340][ T389] Tainted: [W]=WARN [ 11.898341][ T389] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.898344][ T389] Call Trace: [ 11.898345][ T389] [ 11.898347][ T389] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.898353][ T389] __might_resched.cold (kernel/sched/core.c:9234) [ 11.898358][ T389] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.898362][ T389] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.898366][ T389] __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)) [ 11.898368][ T389] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.898375][ T389] ? 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) [ 11.898378][ T389] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.898382][ T389] put_chars (drivers/char/virtio_console.c:1176) [ 11.898384][ T389] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.898391][ T389] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.898399][ T389] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.898402][ T389] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.898406][ T389] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.898410][ T389] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.898412][ T389] ? 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)) [ 11.898415][ T389] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.898418][ T389] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.898422][ T389] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.898426][ T389] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.898428][ T389] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.898434][ T389] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.898437][ T389] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.898439][ T389] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.898440][ T389] ? 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) [ 11.898444][ T389] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.898446][ T389] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.898449][ T389] vprintk_emit (kernel/printk/printk.c:2479) [ 11.898452][ T389] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.898453][ T389] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 11.898455][ T389] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.898457][ T389] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.898462][ T389] _printk (kernel/printk/printk.c:2504) [ 11.898466][ T389] ? snapshot_read.cold (user.c:?) [ 11.898473][ T389] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 11.898478][ T389] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 11.898481][ T389] br_device_event (net/bridge/br.c:111) [ 11.898483][ T389] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 11.898487][ T389] ? packet_sendmsg_spkt (af_packet.c:?) [ 11.898493][ T389] notifier_call_chain (kernel/notifier.c:85) [ 11.898499][ T389] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 11.898504][ T389] ? netif_change_name (net/core/dev.c:1517) [ 11.898508][ T389] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 11.898511][ T389] ? __kernel_text_address (kernel/extable.c:79) [ 11.898514][ T389] ? write_profile (profile.c:?) [ 11.898519][ T389] netif_change_flags (net/core/dev.c:9882) [ 11.898523][ T389] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 11.898526][ T389] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 11.898528][ T389] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 11.898529][ T389] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 11.898531][ T389] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 11.898535][ T389] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.898536][ T389] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.898538][ T389] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.898541][ T389] ? kasan_save_stack (mm/kasan/common.c:58) [ 11.898543][ T389] ? kasan_save_stack (mm/kasan/common.c:57) [ 11.898544][ T389] ? kasan_save_track (mm/kasan/common.c:78) [ 11.898546][ T389] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 11.898548][ T389] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.898550][ T389] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 11.898553][ T389] ? ___sys_sendmsg (net/socket.c:2758) [ 11.898557][ T389] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.898559][ T389] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.898561][ T389] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.898563][ T389] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.898565][ T389] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.898566][ T389] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.898568][ T389] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 11.898570][ T389] ? __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) [ 11.898571][ T389] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 11.898573][ T389] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.898577][ T389] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 11.898580][ T389] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.898582][ T389] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 11.898588][ T389] rtnl_newlink (net/core/rtnetlink.c:4215) [ 11.898593][ T389] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.898595][ T389] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.898600][ T389] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.898601][ T389] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.898604][ T389] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.898605][ T389] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.898609][ T389] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.898611][ T389] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.898614][ T389] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.898616][ T389] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.898620][ T389] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.898622][ T389] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.898626][ T389] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 11.898629][ T389] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.898632][ T389] ? netlink_ack (./include/linux/skbuff.h:2718) [ 11.898638][ T389] ? 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)) [ 11.898641][ T389] ? 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)) [ 11.898645][ T389] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 11.898649][ T389] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 11.898652][ T389] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.898656][ T389] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 11.898660][ T389] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 11.898664][ T389] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.898666][ T389] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 11.898671][ T389] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 11.898674][ T389] ____sys_sendmsg (net/socket.c:2713) [ 11.898676][ T389] ? copy_msghdr_from_user (net/socket.c:2650) [ 11.898678][ T389] ? sock_write_iter (net/socket.c:1269) [ 11.898680][ T389] ? move_addr_to_kernel (net/socket.c:258) [ 11.898693][ T389] ___sys_sendmsg (net/socket.c:2767) [ 11.898696][ T389] ? copy_msghdr_from_user (net/socket.c:2619) [ 11.898712][ T389] __sys_sendmsg (net/socket.c:2799) [ 11.898715][ T389] ? __sys_sendmsg_sock (net/socket.c:2780) [ 11.898721][ T389] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.898724][ T389] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.898727][ T389] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.898730][ T389] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.898733][ T389] RIP: 0033:0x7f4a4da8154e [ 11.898735][ T389] 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 [ 11.898737][ T389] RSP: 002b:00007ffe1dfe7430 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 11.898740][ T389] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f4a4da8154e [ 11.898741][ T389] RDX: 0000000000000000 RSI: 00007ffe1dfe74e0 RDI: 0000000000000005 [ 11.898742][ T389] RBP: 00007ffe1dfe7440 R08: 0000000000000000 R09: 0000000000000000 [ 11.898743][ T389] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910829 [ 11.898743][ T389] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe1dfe7ba0 | [ 13.209859][ T56] softirqs last disabled at (49004): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 13.209861][ T56] Preemption disabled at: | [ 13.209862][ T56] 0x0 | [ 13.209873][ T56] Tainted: [W]=WARN [ 13.209874][ T56] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.209876][ T56] Workqueue: events_unbound linkwatch_event [ 13.209879][ T56] Call Trace: [ 13.209881][ T56] [ 13.209882][ T56] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 13.209889][ T56] __might_resched.cold (kernel/sched/core.c:9234) [ 13.209896][ T56] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 13.209900][ T56] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 13.209905][ T56] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 13.209907][ T56] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.209913][ T56] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 13.209916][ T56] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.209920][ T56] put_chars (drivers/char/virtio_console.c:1176) [ 13.209923][ T56] ? __send_to_port (drivers/char/virtio_console.c:654) [ 13.209924][ T56] ? check_prev_add (kernel/locking/lockdep.c:3185) [ 13.209929][ T56] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 13.209933][ T56] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 13.209937][ T56] ? mark_usage (kernel/locking/lockdep.c:4690) [ 13.209939][ T56] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.209940][ T56] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.209945][ T56] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 13.209947][ T56] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.209951][ T56] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.209956][ T56] console_emit_next_record (kernel/printk/printk.c:3183) [ 13.209960][ T56] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 13.209962][ T56] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 13.209965][ T56] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.209968][ T56] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.209972][ T56] console_flush_one_record (kernel/printk/printk.c:3268) [ 13.209977][ T56] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 13.209978][ T56] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.209984][ T56] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 13.209987][ T56] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 13.209989][ T56] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.209991][ T56] ? 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) [ 13.209995][ T56] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 13.209997][ T56] ? vprintk_emit (kernel/printk/printk.c:2478) [ 13.209999][ T56] vprintk_emit (kernel/printk/printk.c:2479) [ 13.210003][ T56] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 13.210005][ T56] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 13.210007][ T56] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 13.210012][ T56] _printk (kernel/printk/printk.c:2504) [ 13.210016][ T56] ? snapshot_read.cold (user.c:?) [ 13.210021][ T56] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.210025][ T56] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 13.210030][ T56] br_init_port (net/bridge/br_stp_if.c:39) [ 13.210032][ T56] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 13.210035][ T56] br_port_carrier_check (net/bridge/br_if.c:90) [ 13.210039][ T56] br_device_event (net/bridge/br.c:101) [ 13.210042][ T56] ? packet_sendmsg_spkt (af_packet.c:?) [ 13.210044][ T56] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 13.210051][ T56] notifier_call_chain (kernel/notifier.c:85) [ 13.210057][ T56] netif_state_change (net/core/dev.c:1625) [ 13.210061][ T56] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 13.210066][ T56] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 13.210068][ T56] __linkwatch_run_queue (net/core/link_watch.c:240) [ 13.210072][ T56] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 13.210074][ T56] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.210079][ T56] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 13.210081][ T56] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 13.210085][ T56] process_one_work (kernel/workqueue.c:3387) [ 13.210092][ T56] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 13.210095][ T56] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.210103][ T56] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 13.210107][ T56] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 13.210109][ T56] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 13.210112][ T56] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 13.210115][ T56] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 13.210117][ T56] kthread (kernel/kthread.c:436) [ 13.210119][ T56] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 13.210123][ T56] ? kthread_affine_preferred (kernel/kthread.c:857) [ 13.210126][ T56] ret_from_fork (arch/x86/kernel/process.c:158) [ 13.210130][ T56] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 13.210133][ T56] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 13.210137][ T56] ? kthread_affine_preferred (kernel/kthread.c:857) [ 13.210140][ T56] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 14.618760][ T648] softirqs last disabled at (21740): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 14.618762][ T648] Preemption disabled at: | [ 14.618763][ T648] 0x0 | [ 14.618773][ T648] Tainted: [W]=WARN [ 14.618774][ T648] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.618776][ T648] Call Trace: [ 14.618778][ T648] [ 14.618779][ T648] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 14.618786][ T648] __might_resched.cold (kernel/sched/core.c:9234) [ 14.618790][ T648] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 14.618794][ T648] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 14.618799][ T648] __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)) [ 14.618801][ T648] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 14.618807][ T648] ? 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) [ 14.618810][ T648] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 14.618814][ T648] put_chars (drivers/char/virtio_console.c:1176) [ 14.618817][ T648] ? __send_to_port (drivers/char/virtio_console.c:654) [ 14.618823][ T648] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 14.618830][ T648] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 14.618834][ T648] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.618838][ T648] console_emit_next_record (kernel/printk/printk.c:3183) [ 14.618842][ T648] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 14.618844][ T648] ? 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)) [ 14.618847][ T648] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.618849][ T648] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.618856][ T648] console_flush_one_record (kernel/printk/printk.c:3268) [ 14.618862][ T648] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 14.618865][ T648] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.618871][ T648] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 14.618874][ T648] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 14.618876][ T648] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.618878][ T648] ? 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) [ 14.618882][ T648] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 14.618884][ T648] ? vprintk_emit (kernel/printk/printk.c:2478) [ 14.618886][ T648] vprintk_emit (kernel/printk/printk.c:2479) [ 14.618889][ T648] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 14.618891][ T648] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 14.618896][ T648] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 14.618898][ T648] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 14.618902][ T648] _printk (kernel/printk/printk.c:2504) [ 14.618906][ T648] ? snapshot_read.cold (user.c:?) [ 14.618913][ T648] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 14.618918][ T648] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 14.618922][ T648] br_device_event (net/bridge/br.c:111) [ 14.618924][ T648] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 14.618928][ T648] ? packet_sendmsg_spkt (af_packet.c:?) [ 14.618933][ T648] notifier_call_chain (kernel/notifier.c:85) [ 14.618939][ T648] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 14.618944][ T648] ? netif_change_name (net/core/dev.c:1517) [ 14.618948][ T648] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 14.618951][ T648] ? __kernel_text_address (kernel/extable.c:79) [ 14.618954][ T648] ? write_profile (profile.c:?) [ 14.618958][ T648] netif_change_flags (net/core/dev.c:9882) [ 14.618962][ T648] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 14.618966][ T648] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 14.618968][ T648] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 14.618969][ T648] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 14.618971][ T648] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 14.618974][ T648] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 14.618976][ T648] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 14.618978][ T648] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 14.618981][ T648] ? kasan_save_stack (mm/kasan/common.c:58) [ 14.618983][ T648] ? kasan_save_stack (mm/kasan/common.c:57) [ 14.618984][ T648] ? kasan_save_track (mm/kasan/common.c:78) [ 14.618985][ T648] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 14.618988][ T648] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.618990][ T648] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 14.618993][ T648] ? ___sys_sendmsg (net/socket.c:2758) [ 14.618996][ T648] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.618998][ T648] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 14.619001][ T648] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.619003][ T648] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.619004][ T648] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.619006][ T648] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.619007][ T648] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 14.619009][ T648] ? __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) [ 14.619011][ T648] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 14.619013][ T648] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 14.619016][ T648] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 14.619019][ T648] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.619022][ T648] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 14.619027][ T648] rtnl_newlink (net/core/rtnetlink.c:4215) [ 14.619032][ T648] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 14.619034][ T648] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.619038][ T648] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.619040][ T648] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 14.619042][ T648] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 14.619044][ T648] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 14.619048][ T648] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 14.619050][ T648] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 14.619053][ T648] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 14.619054][ T648] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.619059][ T648] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 14.619061][ T648] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 14.619064][ T648] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 14.619067][ T648] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 14.619070][ T648] ? netlink_ack (./include/linux/skbuff.h:2718) [ 14.619077][ T648] ? 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)) [ 14.619079][ T648] ? 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)) [ 14.619083][ T648] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 14.619087][ T648] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 14.619090][ T648] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 14.619094][ T648] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 14.619100][ T648] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 14.619105][ T648] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 14.619107][ T648] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 14.619113][ T648] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 14.619115][ T648] ____sys_sendmsg (net/socket.c:2713) [ 14.619118][ T648] ? copy_msghdr_from_user (net/socket.c:2650) [ 14.619120][ T648] ? sock_write_iter (net/socket.c:1269) [ 14.619121][ T648] ? move_addr_to_kernel (net/socket.c:258) [ 14.619129][ T648] ___sys_sendmsg (net/socket.c:2767) [ 14.619132][ T648] ? copy_msghdr_from_user (net/socket.c:2619) [ 14.619155][ T648] __sys_sendmsg (net/socket.c:2799) [ 14.619159][ T648] ? __sys_sendmsg_sock (net/socket.c:2780) [ 14.619166][ T648] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.619169][ T648] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 14.619172][ T648] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 14.619175][ T648] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 14.619177][ T648] RIP: 0033:0x7f7252fc854e [ 14.619179][ T648] 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 [ 14.619181][ T648] RSP: 002b:00007ffc864fbb10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 14.619183][ T648] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f7252fc854e [ 14.619185][ T648] RDX: 0000000000000000 RSI: 00007ffc864fbbc0 RDI: 0000000000000005 [ 14.619185][ T648] RBP: 00007ffc864fbb20 R08: 0000000000000000 R09: 0000000000000000 [ 14.619186][ T648] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91082b [ 14.619187][ T648] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc864fc280 | [ 15.923496][ T39] softirqs last disabled at (59076): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 15.923498][ T39] Preemption disabled at: | [ 15.923499][ T39] 0x0 | [ 15.923510][ T39] Tainted: [W]=WARN [ 15.923511][ T39] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.923513][ T39] Workqueue: events_unbound linkwatch_event [ 15.923516][ T39] Call Trace: [ 15.923518][ T39] [ 15.923519][ T39] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 15.923526][ T39] __might_resched.cold (kernel/sched/core.c:9234) [ 15.923530][ T39] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 15.923534][ 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) [ 15.923539][ 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)) [ 15.923541][ T39] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.923547][ 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) [ 15.923550][ T39] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.923554][ T39] put_chars (drivers/char/virtio_console.c:1176) [ 15.923557][ T39] ? __send_to_port (drivers/char/virtio_console.c:654) [ 15.923559][ T39] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 15.923563][ T39] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 15.923566][ T39] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 15.923570][ T39] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 15.923574][ T39] ? mark_usage (kernel/locking/lockdep.c:4690) [ 15.923576][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.923578][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.923582][ T39] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 15.923584][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.923588][ T39] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.923593][ T39] console_emit_next_record (kernel/printk/printk.c:3183) [ 15.923597][ T39] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 15.923599][ 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)) [ 15.923602][ T39] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.923604][ T39] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.923608][ T39] console_flush_one_record (kernel/printk/printk.c:3268) [ 15.923612][ T39] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 15.923614][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.923620][ T39] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 15.923623][ T39] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 15.923624][ T39] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.923626][ 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) [ 15.923630][ T39] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 15.923632][ T39] ? vprintk_emit (kernel/printk/printk.c:2478) [ 15.923635][ T39] vprintk_emit (kernel/printk/printk.c:2479) [ 15.923638][ T39] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 15.923640][ T39] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 15.923642][ T39] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 15.923646][ T39] _printk (kernel/printk/printk.c:2504) [ 15.923650][ T39] ? snapshot_read.cold (user.c:?) [ 15.923655][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.923659][ T39] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 15.923663][ T39] br_init_port (net/bridge/br_stp_if.c:39) [ 15.923666][ T39] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 15.923668][ T39] br_port_carrier_check (net/bridge/br_if.c:90) [ 15.923672][ T39] br_device_event (net/bridge/br.c:101) [ 15.923675][ T39] ? packet_sendmsg_spkt (af_packet.c:?) [ 15.923677][ T39] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 15.923684][ T39] notifier_call_chain (kernel/notifier.c:85) [ 15.923698][ T39] netif_state_change (net/core/dev.c:1625) [ 15.923703][ T39] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 15.923708][ T39] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 15.923710][ T39] __linkwatch_run_queue (net/core/link_watch.c:240) [ 15.923713][ T39] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 15.923716][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.923720][ T39] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 15.923723][ T39] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 15.923726][ T39] process_one_work (kernel/workqueue.c:3387) [ 15.923733][ T39] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 15.923736][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.923744][ T39] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 15.923751][ T39] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 15.923753][ T39] kthread (kernel/kthread.c:436) [ 15.923755][ T39] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 15.923759][ T39] ? kthread_affine_preferred (kernel/kthread.c:857) [ 15.923762][ T39] ret_from_fork (arch/x86/kernel/process.c:158) [ 15.923766][ T39] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 15.923769][ T39] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 15.923773][ T39] ? kthread_affine_preferred (kernel/kthread.c:857) [ 15.923776][ T39] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 17.204439][ T36] softirqs last disabled at (99126): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 17.204442][ T36] Preemption disabled at: | [ 17.204442][ T36] 0x0 | [ 17.204453][ T36] Tainted: [W]=WARN [ 17.204454][ T36] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.204456][ T36] Workqueue: events_unbound linkwatch_event [ 17.204459][ T36] Call Trace: [ 17.204461][ T36] [ 17.204462][ T36] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 17.204469][ T36] __might_resched.cold (kernel/sched/core.c:9234) [ 17.204473][ T36] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 17.204477][ 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) [ 17.204482][ 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)) [ 17.204484][ T36] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 17.204491][ 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) [ 17.204493][ T36] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 17.204497][ T36] put_chars (drivers/char/virtio_console.c:1176) [ 17.204499][ T36] ? __send_to_port (drivers/char/virtio_console.c:654) [ 17.204502][ T36] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 17.204505][ T36] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 17.204508][ T36] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 17.204512][ T36] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 17.204516][ T36] ? mark_usage (kernel/locking/lockdep.c:4690) [ 17.204518][ T36] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.204520][ T36] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.204524][ T36] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 17.204526][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.204531][ T36] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.204535][ T36] console_emit_next_record (kernel/printk/printk.c:3183) [ 17.204539][ T36] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 17.204541][ 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)) [ 17.204544][ T36] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.204546][ T36] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.204550][ T36] console_flush_one_record (kernel/printk/printk.c:3268) [ 17.204555][ T36] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 17.204557][ T36] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.204562][ T36] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 17.204565][ T36] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 17.204567][ T36] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.204569][ 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) [ 17.204573][ T36] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 17.204574][ T36] ? vprintk_emit (kernel/printk/printk.c:2478) [ 17.204577][ T36] vprintk_emit (kernel/printk/printk.c:2479) [ 17.204580][ T36] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 17.204582][ T36] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 17.204584][ T36] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 17.204588][ T36] _printk (kernel/printk/printk.c:2504) [ 17.204592][ T36] ? snapshot_read.cold (user.c:?) [ 17.204598][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.204602][ T36] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 17.204606][ T36] br_init_port (net/bridge/br_stp_if.c:39) [ 17.204609][ T36] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 17.204611][ T36] br_port_carrier_check (net/bridge/br_if.c:90) [ 17.204614][ T36] br_device_event (net/bridge/br.c:101) [ 17.204618][ T36] ? packet_sendmsg_spkt (af_packet.c:?) [ 17.204620][ T36] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 17.204627][ T36] notifier_call_chain (kernel/notifier.c:85) [ 17.204633][ T36] netif_state_change (net/core/dev.c:1625) [ 17.204637][ T36] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 17.204642][ T36] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 17.204645][ T36] __linkwatch_run_queue (net/core/link_watch.c:240) [ 17.204648][ T36] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 17.204650][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.204655][ T36] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 17.204657][ T36] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 17.204660][ T36] process_one_work (kernel/workqueue.c:3387) [ 17.204667][ T36] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 17.204670][ T36] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 17.204678][ T36] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 17.204690][ T36] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 17.204693][ T36] kthread (kernel/kthread.c:436) [ 17.204695][ T36] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 17.204698][ T36] ? kthread_affine_preferred (kernel/kthread.c:857) [ 17.204701][ T36] ret_from_fork (arch/x86/kernel/process.c:158) [ 17.204705][ T36] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 17.204709][ T36] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 17.204712][ T36] ? kthread_affine_preferred (kernel/kthread.c:857) [ 17.204715][ T36] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 18.406667][ T1005] softirqs last disabled at (12912): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 18.406670][ T1005] Preemption disabled at: | [ 18.406670][ T1005] 0x0 | [ 18.406681][ T1005] Tainted: [W]=WARN [ 18.406682][ T1005] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.406684][ T1005] Call Trace: [ 18.406685][ T1005] [ 18.406687][ T1005] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 18.406698][ T1005] __might_resched.cold (kernel/sched/core.c:9234) [ 18.406702][ T1005] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 18.406707][ T1005] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 18.406711][ T1005] __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)) [ 18.406713][ T1005] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 18.406720][ T1005] ? 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) [ 18.406723][ T1005] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 18.406727][ T1005] put_chars (drivers/char/virtio_console.c:1176) [ 18.406729][ T1005] ? __send_to_port (drivers/char/virtio_console.c:654) [ 18.406730][ T1005] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 18.406734][ T1005] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 18.406740][ T1005] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 18.406747][ T1005] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 18.406750][ T1005] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.406752][ T1005] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 18.406756][ T1005] console_emit_next_record (kernel/printk/printk.c:3183) [ 18.406760][ T1005] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 18.406762][ T1005] ? 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)) [ 18.406765][ T1005] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.406767][ T1005] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 18.406771][ T1005] console_flush_one_record (kernel/printk/printk.c:3268) [ 18.406775][ T1005] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 18.406777][ T1005] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.406782][ T1005] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 18.406785][ T1005] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 18.406787][ T1005] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.406789][ T1005] ? 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) [ 18.406792][ T1005] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 18.406794][ T1005] ? vprintk_emit (kernel/printk/printk.c:2478) [ 18.406797][ T1005] vprintk_emit (kernel/printk/printk.c:2479) [ 18.406800][ T1005] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 18.406803][ T1005] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 18.406804][ T1005] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 18.406809][ T1005] _printk (kernel/printk/printk.c:2504) [ 18.406813][ T1005] ? snapshot_read.cold (user.c:?) [ 18.406818][ T1005] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 18.406822][ T1005] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 18.406827][ T1005] br_init_port (net/bridge/br_stp_if.c:39) [ 18.406829][ T1005] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 18.406831][ T1005] br_device_event (net/bridge/br.c:120) [ 18.406834][ T1005] ? packet_sendmsg_spkt (af_packet.c:?) [ 18.406836][ T1005] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 18.406843][ T1005] notifier_call_chain (kernel/notifier.c:85) [ 18.406848][ T1005] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 18.406853][ T1005] ? netif_change_name (net/core/dev.c:1517) [ 18.406857][ T1005] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 18.406859][ T1005] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 18.406863][ T1005] ? __kernel_text_address (kernel/extable.c:79) [ 18.406864][ T1005] ? write_profile (profile.c:?) [ 18.406869][ T1005] netif_change_flags (net/core/dev.c:9882) [ 18.406873][ T1005] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 18.406876][ T1005] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 18.406878][ T1005] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 18.406880][ T1005] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 18.406882][ T1005] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 18.406885][ T1005] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 18.406887][ T1005] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 18.406889][ T1005] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 18.406891][ T1005] ? kasan_save_stack (mm/kasan/common.c:58) [ 18.406896][ T1005] ? kasan_save_stack (mm/kasan/common.c:57) [ 18.406897][ T1005] ? kasan_save_track (mm/kasan/common.c:78) [ 18.406899][ T1005] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 18.406901][ T1005] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.406904][ T1005] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 18.406907][ T1005] ? ___sys_sendmsg (net/socket.c:2758) [ 18.406912][ T1005] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 18.406914][ T1005] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 18.406917][ T1005] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.406919][ T1005] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 18.406921][ T1005] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.406922][ T1005] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.406924][ T1005] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 18.406927][ T1005] ? __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) [ 18.406930][ T1005] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 18.406932][ T1005] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 18.406935][ T1005] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 18.406939][ T1005] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.406941][ T1005] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 18.406946][ T1005] rtnl_newlink (net/core/rtnetlink.c:4215) [ 18.406952][ T1005] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 18.406954][ T1005] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.406958][ T1005] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 18.406960][ T1005] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 18.406962][ T1005] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 18.406964][ T1005] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 18.406968][ T1005] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 18.406970][ T1005] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 18.406973][ T1005] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 18.406975][ T1005] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.406979][ T1005] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 18.406981][ T1005] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 18.406985][ T1005] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 18.406987][ T1005] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 18.406989][ T1005] ? netlink_ack (./include/linux/skbuff.h:2718) [ 18.406996][ T1005] ? 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)) [ 18.406998][ T1005] ? 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)) [ 18.407003][ T1005] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 18.407006][ T1005] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 18.407009][ T1005] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 18.407013][ T1005] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 18.407017][ T1005] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 18.407021][ T1005] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 18.407023][ T1005] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 18.407028][ T1005] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 18.407031][ T1005] ____sys_sendmsg (net/socket.c:2713) [ 18.407033][ T1005] ? copy_msghdr_from_user (net/socket.c:2650) [ 18.407035][ T1005] ? sock_write_iter (net/socket.c:1269) [ 18.407037][ T1005] ? move_addr_to_kernel (net/socket.c:258) [ 18.407044][ T1005] ___sys_sendmsg (net/socket.c:2767) [ 18.407047][ T1005] ? copy_msghdr_from_user (net/socket.c:2619) [ 18.407063][ T1005] __sys_sendmsg (net/socket.c:2799) [ 18.407066][ T1005] ? __sys_sendmsg_sock (net/socket.c:2780) [ 18.407072][ T1005] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.407075][ T1005] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 18.407078][ T1005] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 18.407081][ T1005] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 18.407084][ T1005] RIP: 0033:0x7f7ce7f4d54e [ 18.407086][ T1005] 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 [ 18.407088][ T1005] RSP: 002b:00007ffc18eb5830 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 18.407091][ T1005] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f7ce7f4d54e [ 18.407092][ T1005] RDX: 0000000000000000 RSI: 00007ffc18eb58e0 RDI: 0000000000000005 [ 18.407093][ T1005] RBP: 00007ffc18eb5840 R08: 0000000000000000 R09: 0000000000000000 [ 18.407094][ T1005] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91082f [ 18.407094][ T1005] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc18eb5fa0 | [ 19.415594][ T1105] softirqs last disabled at (16190): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 19.415596][ T1105] Preemption disabled at: | [ 19.415596][ T1105] 0x0 | [ 19.415607][ T1105] Tainted: [W]=WARN [ 19.415608][ T1105] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 19.415610][ T1105] Call Trace: [ 19.415611][ T1105] [ 19.415615][ T1105] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 19.415622][ T1105] __might_resched.cold (kernel/sched/core.c:9234) [ 19.415627][ T1105] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 19.415631][ T1105] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 19.415636][ T1105] __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)) [ 19.415637][ T1105] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 19.415644][ T1105] ? 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) [ 19.415647][ T1105] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 19.415651][ T1105] put_chars (drivers/char/virtio_console.c:1176) [ 19.415653][ T1105] ? __send_to_port (drivers/char/virtio_console.c:654) [ 19.415655][ T1105] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 19.415658][ T1105] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 19.415664][ T1105] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 19.415672][ T1105] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 19.415674][ T1105] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.415676][ T1105] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 19.415680][ T1105] console_emit_next_record (kernel/printk/printk.c:3183) [ 19.415684][ T1105] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 19.415686][ T1105] ? 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)) [ 19.415695][ T1105] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.415697][ T1105] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 19.415701][ T1105] console_flush_one_record (kernel/printk/printk.c:3268) [ 19.415705][ T1105] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 19.415707][ T1105] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.415713][ T1105] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 19.415716][ T1105] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 19.415718][ T1105] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.415719][ T1105] ? 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) [ 19.415723][ T1105] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 19.415725][ T1105] ? vprintk_emit (kernel/printk/printk.c:2478) [ 19.415727][ T1105] vprintk_emit (kernel/printk/printk.c:2479) [ 19.415731][ T1105] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 19.415733][ T1105] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 19.415734][ T1105] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 19.415739][ T1105] _printk (kernel/printk/printk.c:2504) [ 19.415743][ T1105] ? snapshot_read.cold (user.c:?) [ 19.415748][ T1105] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 19.415752][ T1105] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 19.415757][ T1105] br_init_port (net/bridge/br_stp_if.c:39) [ 19.415759][ T1105] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 19.415761][ T1105] br_device_event (net/bridge/br.c:120) [ 19.415764][ T1105] ? packet_sendmsg_spkt (af_packet.c:?) [ 19.415765][ T1105] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 19.415772][ T1105] notifier_call_chain (kernel/notifier.c:85) [ 19.415778][ T1105] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 19.415783][ T1105] ? netif_change_name (net/core/dev.c:1517) [ 19.415787][ T1105] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 19.415789][ T1105] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 19.415792][ T1105] ? __kernel_text_address (kernel/extable.c:79) [ 19.415794][ T1105] ? write_profile (profile.c:?) [ 19.415799][ T1105] netif_change_flags (net/core/dev.c:9882) [ 19.415803][ T1105] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 19.415806][ T1105] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 19.415808][ T1105] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 19.415809][ T1105] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 19.415811][ T1105] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 19.415815][ T1105] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 19.415817][ T1105] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 19.415818][ T1105] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 19.415821][ T1105] ? kasan_save_stack (mm/kasan/common.c:58) [ 19.415823][ T1105] ? kasan_save_stack (mm/kasan/common.c:57) [ 19.415825][ T1105] ? kasan_save_track (mm/kasan/common.c:78) [ 19.415826][ T1105] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 19.415828][ T1105] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.415830][ T1105] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 19.415833][ T1105] ? ___sys_sendmsg (net/socket.c:2758) [ 19.415837][ T1105] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 19.415839][ T1105] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 19.415842][ T1105] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.415843][ T1105] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 19.415845][ T1105] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.415846][ T1105] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.415848][ T1105] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 19.415850][ T1105] ? __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) [ 19.415853][ T1105] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 19.415855][ T1105] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 19.415858][ T1105] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 19.415861][ T1105] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.415864][ T1105] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 19.415869][ T1105] rtnl_newlink (net/core/rtnetlink.c:4215) [ 19.415874][ T1105] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 19.415876][ T1105] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.415881][ T1105] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 19.415883][ T1105] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 19.415885][ T1105] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 19.415887][ T1105] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 19.415890][ T1105] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 19.415892][ T1105] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 19.415896][ T1105] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 19.415897][ T1105] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 19.415902][ T1105] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 19.415904][ T1105] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 19.415907][ T1105] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 19.415909][ T1105] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 19.415912][ T1105] ? netlink_ack (./include/linux/skbuff.h:2718) [ 19.415918][ T1105] ? 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)) [ 19.415920][ T1105] ? 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)) [ 19.415925][ T1105] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 19.415929][ T1105] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 19.415931][ T1105] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 19.415936][ T1105] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 19.415940][ T1105] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 19.415943][ T1105] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 19.415945][ T1105] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 19.415950][ T1105] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 19.415953][ T1105] ____sys_sendmsg (net/socket.c:2713) [ 19.415955][ T1105] ? copy_msghdr_from_user (net/socket.c:2650) [ 19.415958][ T1105] ? sock_write_iter (net/socket.c:1269) [ 19.415959][ T1105] ? move_addr_to_kernel (net/socket.c:258) [ 19.415967][ T1105] ___sys_sendmsg (net/socket.c:2767) [ 19.415969][ T1105] ? copy_msghdr_from_user (net/socket.c:2619) [ 19.415986][ T1105] __sys_sendmsg (net/socket.c:2799) [ 19.415988][ T1105] ? __sys_sendmsg_sock (net/socket.c:2780) [ 19.415995][ T1105] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 19.415998][ T1105] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 19.416000][ T1105] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 19.416003][ T1105] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 19.416006][ T1105] RIP: 0033:0x7f2684cc354e [ 19.416008][ T1105] 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 [ 19.416010][ T1105] RSP: 002b:00007ffdf074bb60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 19.416012][ T1105] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f2684cc354e [ 19.416014][ T1105] RDX: 0000000000000000 RSI: 00007ffdf074bc10 RDI: 0000000000000005 [ 19.416015][ T1105] RBP: 00007ffdf074bb70 R08: 0000000000000000 R09: 0000000000000000 [ 19.416015][ T1105] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910830 [ 19.416016][ T1105] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdf074c2d0 | [ 20.940659][ T1230] softirqs last disabled at (15984): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 20.940661][ T1230] Preemption disabled at: | [ 20.940662][ T1230] 0x0 | [ 20.940672][ T1230] Tainted: [W]=WARN [ 20.940673][ T1230] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 20.940675][ T1230] Call Trace: [ 20.940677][ T1230] [ 20.940678][ T1230] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 20.940685][ T1230] __might_resched.cold (kernel/sched/core.c:9234) [ 20.940689][ T1230] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 20.940699][ T1230] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 20.940704][ T1230] __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)) [ 20.940706][ T1230] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 20.940713][ T1230] ? 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) [ 20.940716][ T1230] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 20.940719][ T1230] put_chars (drivers/char/virtio_console.c:1176) [ 20.940722][ T1230] ? __send_to_port (drivers/char/virtio_console.c:654) [ 20.940729][ T1230] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 20.940737][ T1230] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 20.940740][ T1230] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 20.940745][ T1230] console_emit_next_record (kernel/printk/printk.c:3183) [ 20.940749][ T1230] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 20.940751][ T1230] ? 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)) [ 20.940754][ T1230] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.940757][ T1230] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 20.940761][ T1230] console_flush_one_record (kernel/printk/printk.c:3268) [ 20.940766][ T1230] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 20.940767][ T1230] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.940773][ T1230] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 20.940776][ T1230] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 20.940778][ T1230] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.940780][ T1230] ? 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) [ 20.940784][ T1230] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 20.940785][ T1230] ? vprintk_emit (kernel/printk/printk.c:2478) [ 20.940788][ T1230] vprintk_emit (kernel/printk/printk.c:2479) [ 20.940791][ T1230] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 20.940793][ T1230] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 20.940795][ T1230] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 20.940797][ T1230] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 20.940802][ T1230] _printk (kernel/printk/printk.c:2504) [ 20.940806][ T1230] ? snapshot_read.cold (user.c:?) [ 20.940813][ T1230] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 20.940818][ T1230] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 20.940822][ T1230] br_device_event (net/bridge/br.c:111) [ 20.940824][ T1230] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 20.940828][ T1230] ? packet_sendmsg_spkt (af_packet.c:?) [ 20.940834][ T1230] notifier_call_chain (kernel/notifier.c:85) [ 20.940840][ T1230] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 20.940845][ T1230] ? netif_change_name (net/core/dev.c:1517) [ 20.940849][ T1230] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 20.940853][ T1230] ? __kernel_text_address (kernel/extable.c:79) [ 20.940855][ T1230] ? write_profile (profile.c:?) [ 20.940860][ T1230] netif_change_flags (net/core/dev.c:9882) [ 20.940864][ T1230] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 20.940868][ T1230] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 20.940870][ T1230] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 20.940871][ T1230] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 20.940873][ T1230] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 20.940877][ T1230] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 20.940879][ T1230] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 20.940881][ T1230] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 20.940883][ T1230] ? kasan_save_stack (mm/kasan/common.c:58) [ 20.940886][ T1230] ? kasan_save_stack (mm/kasan/common.c:57) [ 20.940887][ T1230] ? kasan_save_track (mm/kasan/common.c:78) [ 20.940888][ T1230] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 20.940890][ T1230] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.940895][ T1230] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 20.940898][ T1230] ? ___sys_sendmsg (net/socket.c:2758) [ 20.940902][ T1230] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 20.940904][ T1230] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 20.940907][ T1230] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.940909][ T1230] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 20.940911][ T1230] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.940912][ T1230] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.940913][ T1230] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 20.940916][ T1230] ? __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) [ 20.940917][ T1230] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 20.940919][ T1230] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 20.940922][ T1230] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 20.940926][ T1230] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.940929][ T1230] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 20.940934][ T1230] rtnl_newlink (net/core/rtnetlink.c:4215) [ 20.940940][ T1230] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 20.940942][ T1230] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.940946][ T1230] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 20.940948][ T1230] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 20.940951][ T1230] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 20.940953][ T1230] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 20.940957][ T1230] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 20.940959][ T1230] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 20.940962][ T1230] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 20.940963][ T1230] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.940968][ T1230] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 20.940970][ T1230] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 20.940974][ T1230] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 20.940977][ T1230] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 20.940980][ T1230] ? netlink_ack (./include/linux/skbuff.h:2718) [ 20.940987][ T1230] ? 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)) [ 20.940989][ T1230] ? 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)) [ 20.940993][ T1230] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 20.940998][ T1230] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 20.941000][ T1230] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 20.941005][ T1230] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 20.941009][ T1230] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 20.941013][ T1230] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 20.941014][ T1230] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 20.941020][ T1230] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 20.941023][ T1230] ____sys_sendmsg (net/socket.c:2713) [ 20.941025][ T1230] ? copy_msghdr_from_user (net/socket.c:2650) [ 20.941027][ T1230] ? sock_write_iter (net/socket.c:1269) [ 20.941029][ T1230] ? move_addr_to_kernel (net/socket.c:258) [ 20.941037][ T1230] ___sys_sendmsg (net/socket.c:2767) [ 20.941040][ T1230] ? copy_msghdr_from_user (net/socket.c:2619) [ 20.941056][ T1230] __sys_sendmsg (net/socket.c:2799) [ 20.941059][ T1230] ? __sys_sendmsg_sock (net/socket.c:2780) [ 20.941066][ T1230] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.941069][ T1230] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 20.941072][ T1230] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 20.941075][ T1230] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 20.941077][ T1230] RIP: 0033:0x7fc1ecb9c54e [ 20.941079][ T1230] 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 [ 20.941081][ T1230] RSP: 002b:00007ffe6d465800 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 20.941084][ T1230] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc1ecb9c54e [ 20.941085][ T1230] RDX: 0000000000000000 RSI: 00007ffe6d4658b0 RDI: 0000000000000005 [ 20.941086][ T1230] RBP: 00007ffe6d465810 R08: 0000000000000000 R09: 0000000000000000 [ 20.941087][ T1230] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910832 [ 20.941088][ T1230] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe6d465f70 | [ 22.267643][ T907] softirqs last disabled at (29176): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 22.267646][ T907] Preemption disabled at: | [ 22.267647][ T907] 0x0 | [ 22.267657][ T907] Tainted: [W]=WARN [ 22.267658][ T907] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 22.267660][ T907] Workqueue: events_unbound linkwatch_event [ 22.267664][ T907] Call Trace: [ 22.267666][ T907] [ 22.267667][ T907] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 22.267674][ T907] __might_resched.cold (kernel/sched/core.c:9234) [ 22.267678][ T907] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 22.267682][ T907] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 22.267687][ T907] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 22.267689][ T907] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 22.267700][ T907] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 22.267703][ T907] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 22.267708][ T907] put_chars (drivers/char/virtio_console.c:1176) [ 22.267710][ T907] ? __send_to_port (drivers/char/virtio_console.c:654) [ 22.267713][ T907] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 22.267716][ T907] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 22.267719][ T907] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 22.267723][ T907] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 22.267727][ T907] ? mark_usage (kernel/locking/lockdep.c:4690) [ 22.267729][ T907] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.267731][ T907] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.267736][ T907] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 22.267738][ T907] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 22.267742][ T907] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 22.267747][ T907] console_emit_next_record (kernel/printk/printk.c:3183) [ 22.267751][ T907] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 22.267753][ T907] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 22.267756][ T907] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.267759][ T907] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 22.267763][ T907] console_flush_one_record (kernel/printk/printk.c:3268) [ 22.267767][ T907] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 22.267769][ T907] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.267775][ T907] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 22.267778][ T907] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 22.267780][ T907] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.267782][ T907] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 22.267786][ T907] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 22.267788][ T907] ? vprintk_emit (kernel/printk/printk.c:2478) [ 22.267793][ T907] vprintk_emit (kernel/printk/printk.c:2479) [ 22.267798][ T907] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 22.267801][ T907] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 22.267803][ T907] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 22.267807][ T907] _printk (kernel/printk/printk.c:2504) [ 22.267811][ T907] ? snapshot_read.cold (user.c:?) [ 22.267817][ T907] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 22.267821][ T907] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 22.267825][ T907] br_init_port (net/bridge/br_stp_if.c:39) [ 22.267828][ T907] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 22.267830][ T907] br_port_carrier_check (net/bridge/br_if.c:90) [ 22.267834][ T907] br_device_event (net/bridge/br.c:101) [ 22.267838][ T907] ? packet_sendmsg_spkt (af_packet.c:?) [ 22.267839][ T907] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 22.267846][ T907] notifier_call_chain (kernel/notifier.c:85) [ 22.267853][ T907] netif_state_change (net/core/dev.c:1625) [ 22.267858][ T907] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 22.267863][ T907] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 22.267865][ T907] __linkwatch_run_queue (net/core/link_watch.c:240) [ 22.267868][ T907] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 22.267871][ T907] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 22.267876][ T907] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 22.267878][ T907] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 22.267882][ T907] process_one_work (kernel/workqueue.c:3387) [ 22.267889][ T907] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 22.267894][ T907] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 22.267903][ T907] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 22.267907][ T907] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 22.267909][ T907] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 22.267912][ T907] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 22.267915][ T907] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 22.267918][ T907] kthread (kernel/kthread.c:436) [ 22.267920][ T907] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 22.267924][ T907] ? kthread_affine_preferred (kernel/kthread.c:857) [ 22.267927][ T907] ret_from_fork (arch/x86/kernel/process.c:158) [ 22.267931][ T907] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 22.267935][ T907] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 22.267938][ T907] ? kthread_affine_preferred (kernel/kthread.c:857) [ 22.267941][ T907] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 23.331993][ T96] softirqs last disabled at (79546): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 23.331996][ T96] Preemption disabled at: | [ 23.331996][ T96] 0x0 | [ 23.332007][ T96] Tainted: [W]=WARN [ 23.332008][ T96] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 23.332010][ T96] Workqueue: events_unbound linkwatch_event [ 23.332013][ T96] Call Trace: [ 23.332015][ T96] [ 23.332016][ T96] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 23.332023][ T96] __might_resched.cold (kernel/sched/core.c:9234) [ 23.332027][ T96] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 23.332031][ T96] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 23.332035][ T96] __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)) [ 23.332037][ T96] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.332044][ T96] ? 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) [ 23.332047][ T96] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.332051][ T96] put_chars (drivers/char/virtio_console.c:1176) [ 23.332053][ T96] ? __send_to_port (drivers/char/virtio_console.c:654) [ 23.332056][ T96] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 23.332059][ T96] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 23.332062][ T96] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 23.332066][ T96] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 23.332070][ T96] ? mark_usage (kernel/locking/lockdep.c:4690) [ 23.332072][ T96] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.332073][ T96] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.332078][ T96] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 23.332079][ T96] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.332084][ T96] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.332088][ T96] console_emit_next_record (kernel/printk/printk.c:3183) [ 23.332092][ T96] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 23.332094][ T96] ? 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)) [ 23.332097][ T96] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.332099][ T96] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.332103][ T96] console_flush_one_record (kernel/printk/printk.c:3268) [ 23.332108][ T96] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 23.332109][ T96] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.332115][ T96] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 23.332118][ T96] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 23.332120][ T96] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.332121][ T96] ? 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) [ 23.332125][ T96] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 23.332127][ T96] ? vprintk_emit (kernel/printk/printk.c:2478) [ 23.332130][ T96] vprintk_emit (kernel/printk/printk.c:2479) [ 23.332133][ T96] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 23.332135][ T96] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 23.332137][ T96] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 23.332141][ T96] _printk (kernel/printk/printk.c:2504) [ 23.332145][ T96] ? snapshot_read.cold (user.c:?) [ 23.332150][ T96] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.332154][ T96] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 23.332158][ T96] br_init_port (net/bridge/br_stp_if.c:39) [ 23.332161][ T96] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 23.332163][ T96] br_port_carrier_check (net/bridge/br_if.c:90) [ 23.332166][ T96] br_device_event (net/bridge/br.c:101) [ 23.332170][ T96] ? packet_sendmsg_spkt (af_packet.c:?) [ 23.332171][ T96] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 23.332178][ T96] notifier_call_chain (kernel/notifier.c:85) [ 23.332184][ T96] netif_state_change (net/core/dev.c:1625) [ 23.332189][ T96] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 23.332194][ T96] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 23.332196][ T96] __linkwatch_run_queue (net/core/link_watch.c:240) [ 23.332199][ T96] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 23.332201][ T96] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.332206][ T96] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 23.332208][ T96] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 23.332212][ T96] process_one_work (kernel/workqueue.c:3387) [ 23.332218][ T96] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 23.332221][ T96] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.332229][ T96] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 23.332236][ T96] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 23.332238][ T96] kthread (kernel/kthread.c:436) [ 23.332241][ T96] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 23.332244][ T96] ? kthread_affine_preferred (kernel/kthread.c:857) [ 23.332247][ T96] ret_from_fork (arch/x86/kernel/process.c:158) [ 23.332251][ T96] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 23.332254][ T96] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 23.332258][ T96] ? kthread_affine_preferred (kernel/kthread.c:857) [ 23.332260][ T96] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 24.397353][ T1529] softirqs last disabled at (24782): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 24.397356][ T1529] Preemption disabled at: | [ 24.397356][ T1529] 0x0 | [ 24.397366][ T1529] Tainted: [W]=WARN [ 24.397367][ T1529] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 24.397369][ T1529] Call Trace: [ 24.397371][ T1529] [ 24.397372][ T1529] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 24.397379][ T1529] __might_resched.cold (kernel/sched/core.c:9234) [ 24.397383][ T1529] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 24.397388][ T1529] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 24.397392][ T1529] __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)) [ 24.397394][ T1529] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 24.397400][ T1529] ? 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) [ 24.397403][ T1529] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 24.397407][ T1529] put_chars (drivers/char/virtio_console.c:1176) [ 24.397410][ T1529] ? __send_to_port (drivers/char/virtio_console.c:654) [ 24.397416][ T1529] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 24.397424][ T1529] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 24.397427][ T1529] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.397432][ T1529] console_emit_next_record (kernel/printk/printk.c:3183) [ 24.397436][ T1529] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 24.397438][ T1529] ? 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)) [ 24.397441][ T1529] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.397444][ T1529] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.397448][ T1529] console_flush_one_record (kernel/printk/printk.c:3268) [ 24.397452][ T1529] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 24.397454][ T1529] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.397460][ T1529] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 24.397462][ T1529] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 24.397464][ T1529] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.397466][ T1529] ? 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) [ 24.397470][ T1529] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 24.397472][ T1529] ? vprintk_emit (kernel/printk/printk.c:2478) [ 24.397474][ T1529] vprintk_emit (kernel/printk/printk.c:2479) [ 24.397477][ T1529] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 24.397479][ T1529] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 24.397481][ T1529] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 24.397483][ T1529] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 24.397488][ T1529] _printk (kernel/printk/printk.c:2504) [ 24.397492][ T1529] ? snapshot_read.cold (user.c:?) [ 24.397499][ T1529] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 24.397504][ T1529] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 24.397507][ T1529] br_device_event (net/bridge/br.c:111) [ 24.397509][ T1529] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 24.397514][ T1529] ? packet_sendmsg_spkt (af_packet.c:?) [ 24.397519][ T1529] notifier_call_chain (kernel/notifier.c:85) [ 24.397525][ T1529] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 24.397530][ T1529] ? netif_change_name (net/core/dev.c:1517) [ 24.397534][ T1529] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 24.397537][ T1529] ? __kernel_text_address (kernel/extable.c:79) [ 24.397540][ T1529] ? write_profile (profile.c:?) [ 24.397544][ T1529] netif_change_flags (net/core/dev.c:9882) [ 24.397548][ T1529] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 24.397552][ T1529] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 24.397554][ T1529] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 24.397555][ T1529] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 24.397557][ T1529] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 24.397560][ T1529] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 24.397562][ T1529] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 24.397564][ T1529] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 24.397567][ T1529] ? kasan_save_stack (mm/kasan/common.c:58) [ 24.397569][ T1529] ? kasan_save_stack (mm/kasan/common.c:57) [ 24.397570][ T1529] ? kasan_save_track (mm/kasan/common.c:78) [ 24.397572][ T1529] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 24.397574][ T1529] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.397576][ T1529] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 24.397579][ T1529] ? ___sys_sendmsg (net/socket.c:2758) [ 24.397583][ T1529] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.397585][ T1529] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 24.397587][ T1529] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.397589][ T1529] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.397591][ T1529] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.397592][ T1529] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.397594][ T1529] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 24.397596][ T1529] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 24.397597][ T1529] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 24.397599][ T1529] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 24.397603][ T1529] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 24.397606][ T1529] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.397608][ T1529] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 24.397614][ T1529] rtnl_newlink (net/core/rtnetlink.c:4215) [ 24.397619][ T1529] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 24.397621][ T1529] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.397626][ T1529] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.397627][ T1529] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 24.397630][ T1529] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 24.397632][ T1529] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 24.397635][ T1529] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 24.397637][ T1529] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 24.397641][ T1529] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 24.397642][ T1529] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.397646][ T1529] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.397648][ T1529] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 24.397652][ T1529] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 24.397655][ T1529] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 24.397658][ T1529] ? netlink_ack (./include/linux/skbuff.h:2718) [ 24.397664][ T1529] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 24.397666][ T1529] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 24.397671][ T1529] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 24.397675][ T1529] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 24.397678][ T1529] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 24.397682][ T1529] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 24.397686][ T1529] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 24.397690][ T1529] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 24.397691][ T1529] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 24.397697][ T1529] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 24.397705][ T1529] ____sys_sendmsg (net/socket.c:2713) [ 24.397708][ T1529] ? copy_msghdr_from_user (net/socket.c:2650) [ 24.397710][ T1529] ? sock_write_iter (net/socket.c:1269) [ 24.397712][ T1529] ? move_addr_to_kernel (net/socket.c:258) [ 24.397719][ T1529] ___sys_sendmsg (net/socket.c:2767) [ 24.397722][ T1529] ? copy_msghdr_from_user (net/socket.c:2619) [ 24.397738][ T1529] __sys_sendmsg (net/socket.c:2799) [ 24.397741][ T1529] ? __sys_sendmsg_sock (net/socket.c:2780) [ 24.397747][ T1529] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.397750][ T1529] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 24.397754][ T1529] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 24.397757][ T1529] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 24.397759][ T1529] RIP: 0033:0x7f8ae429f54e [ 24.397761][ T1529] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 24.397763][ T1529] RSP: 002b:00007fffcb4356f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 24.397766][ T1529] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f8ae429f54e [ 24.397767][ T1529] RDX: 0000000000000000 RSI: 00007fffcb4357a0 RDI: 0000000000000005 [ 24.397768][ T1529] RBP: 00007fffcb435700 R08: 0000000000000000 R09: 0000000000000000 [ 24.397769][ T1529] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910835 [ 24.397769][ T1529] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffcb435e60 | [ 25.639006][ T1667] softirqs last disabled at (11460): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 25.639009][ T1667] Preemption disabled at: | [ 25.639010][ T1667] 0x0 | [ 25.639020][ T1667] Tainted: [W]=WARN [ 25.639021][ T1667] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 25.639023][ T1667] Call Trace: [ 25.639024][ T1667] [ 25.639026][ T1667] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 25.639033][ T1667] __might_resched.cold (kernel/sched/core.c:9234) [ 25.639038][ T1667] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 25.639042][ T1667] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 25.639046][ T1667] __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)) [ 25.639048][ T1667] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.639055][ T1667] ? 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) [ 25.639058][ T1667] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.639062][ T1667] put_chars (drivers/char/virtio_console.c:1176) [ 25.639065][ T1667] ? __send_to_port (drivers/char/virtio_console.c:654) [ 25.639066][ T1667] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 25.639069][ T1667] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 25.639075][ T1667] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 25.639082][ T1667] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 25.639085][ T1667] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.639087][ T1667] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.639091][ T1667] console_emit_next_record (kernel/printk/printk.c:3183) [ 25.639095][ T1667] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 25.639097][ T1667] ? 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)) [ 25.639100][ T1667] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.639102][ T1667] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.639106][ T1667] console_flush_one_record (kernel/printk/printk.c:3268) [ 25.639110][ T1667] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 25.639112][ T1667] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.639118][ T1667] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 25.639120][ T1667] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 25.639122][ T1667] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.639124][ T1667] ? 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) [ 25.639128][ T1667] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 25.639129][ T1667] ? vprintk_emit (kernel/printk/printk.c:2478) [ 25.639132][ T1667] vprintk_emit (kernel/printk/printk.c:2479) [ 25.639135][ T1667] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 25.639137][ T1667] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 25.639139][ T1667] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 25.639144][ T1667] _printk (kernel/printk/printk.c:2504) [ 25.639148][ T1667] ? snapshot_read.cold (user.c:?) [ 25.639153][ T1667] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.639157][ T1667] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 25.639162][ T1667] br_init_port (net/bridge/br_stp_if.c:39) [ 25.639164][ T1667] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 25.639166][ T1667] br_device_event (net/bridge/br.c:120) [ 25.639169][ T1667] ? packet_sendmsg_spkt (af_packet.c:?) [ 25.639171][ T1667] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 25.639177][ T1667] notifier_call_chain (kernel/notifier.c:85) [ 25.639183][ T1667] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 25.639188][ T1667] ? netif_change_name (net/core/dev.c:1517) [ 25.639192][ T1667] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 25.639194][ T1667] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 25.639197][ T1667] ? __kernel_text_address (kernel/extable.c:79) [ 25.639199][ T1667] ? write_profile (profile.c:?) [ 25.639204][ T1667] netif_change_flags (net/core/dev.c:9882) [ 25.639208][ T1667] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 25.639211][ T1667] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 25.639213][ T1667] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 25.639215][ T1667] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 25.639216][ T1667] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 25.639220][ T1667] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 25.639222][ T1667] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 25.639224][ T1667] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 25.639226][ T1667] ? kasan_save_stack (mm/kasan/common.c:58) [ 25.639229][ T1667] ? kasan_save_stack (mm/kasan/common.c:57) [ 25.639230][ T1667] ? kasan_save_track (mm/kasan/common.c:78) [ 25.639231][ T1667] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 25.639233][ T1667] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.639235][ T1667] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 25.639238][ T1667] ? ___sys_sendmsg (net/socket.c:2758) [ 25.639242][ T1667] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.639244][ T1667] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 25.639247][ T1667] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.639248][ T1667] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.639250][ T1667] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.639251][ T1667] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.639252][ T1667] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 25.639255][ T1667] ? __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) [ 25.639257][ T1667] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 25.639259][ T1667] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 25.639263][ T1667] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 25.639266][ T1667] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.639268][ T1667] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 25.639274][ T1667] rtnl_newlink (net/core/rtnetlink.c:4215) [ 25.639279][ T1667] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.639281][ T1667] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.639285][ T1667] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.639287][ T1667] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.639289][ T1667] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.639291][ T1667] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 25.639295][ T1667] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.639297][ T1667] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 25.639300][ T1667] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 25.639301][ T1667] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.639306][ T1667] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.639308][ T1667] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.639311][ T1667] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 25.639313][ T1667] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 25.639316][ T1667] ? netlink_ack (./include/linux/skbuff.h:2718) [ 25.639323][ T1667] ? 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)) [ 25.639325][ T1667] ? 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)) [ 25.639329][ T1667] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 25.639333][ T1667] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 25.639336][ T1667] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.639340][ T1667] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 25.639344][ T1667] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 25.639348][ T1667] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 25.639349][ T1667] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 25.639355][ T1667] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 25.639357][ T1667] ____sys_sendmsg (net/socket.c:2713) [ 25.639360][ T1667] ? copy_msghdr_from_user (net/socket.c:2650) [ 25.639362][ T1667] ? sock_write_iter (net/socket.c:1269) [ 25.639363][ T1667] ? move_addr_to_kernel (net/socket.c:258) [ 25.639371][ T1667] ___sys_sendmsg (net/socket.c:2767) [ 25.639374][ T1667] ? copy_msghdr_from_user (net/socket.c:2619) [ 25.639390][ T1667] __sys_sendmsg (net/socket.c:2799) [ 25.639392][ T1667] ? __sys_sendmsg_sock (net/socket.c:2780) [ 25.639399][ T1667] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.639402][ T1667] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 25.639404][ T1667] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 25.639407][ T1667] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 25.639410][ T1667] RIP: 0033:0x7fc56e73d54e [ 25.639412][ T1667] 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 [ 25.639414][ T1667] RSP: 002b:00007ffdb72dc9f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 25.639416][ T1667] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc56e73d54e [ 25.639417][ T1667] RDX: 0000000000000000 RSI: 00007ffdb72dcaa0 RDI: 0000000000000005 [ 25.639418][ T1667] RBP: 00007ffdb72dca00 R08: 0000000000000000 R09: 0000000000000000 [ 25.639419][ T1667] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910836 [ 25.639420][ T1667] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdb72dd160 | [ 27.421959][ T1792] softirqs last disabled at (18926): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 27.421961][ T1792] Preemption disabled at: | [ 27.421962][ T1792] 0x0 | [ 27.421972][ T1792] Tainted: [W]=WARN [ 27.421973][ T1792] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 27.421975][ T1792] Call Trace: [ 27.421977][ T1792] [ 27.421978][ T1792] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 27.421984][ T1792] __might_resched.cold (kernel/sched/core.c:9234) [ 27.421989][ T1792] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 27.421993][ T1792] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 27.421997][ T1792] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 27.421999][ T1792] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 27.422006][ T1792] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 27.422009][ T1792] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 27.422012][ T1792] put_chars (drivers/char/virtio_console.c:1176) [ 27.422015][ T1792] ? __send_to_port (drivers/char/virtio_console.c:654) [ 27.422021][ T1792] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 27.422029][ T1792] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 27.422032][ T1792] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 27.422036][ T1792] console_emit_next_record (kernel/printk/printk.c:3183) [ 27.422040][ T1792] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 27.422042][ T1792] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 27.422045][ T1792] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.422048][ T1792] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 27.422052][ T1792] console_flush_one_record (kernel/printk/printk.c:3268) [ 27.422056][ T1792] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 27.422058][ T1792] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 27.422063][ T1792] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 27.422066][ T1792] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 27.422068][ T1792] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.422070][ T1792] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 27.422073][ T1792] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 27.422076][ T1792] ? vprintk_emit (kernel/printk/printk.c:2478) [ 27.422078][ T1792] vprintk_emit (kernel/printk/printk.c:2479) [ 27.422081][ T1792] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 27.422083][ T1792] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 27.422085][ T1792] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 27.422087][ T1792] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 27.422092][ T1792] _printk (kernel/printk/printk.c:2504) [ 27.422095][ T1792] ? snapshot_read.cold (user.c:?) [ 27.422103][ T1792] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 27.422107][ T1792] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 27.422111][ T1792] br_device_event (net/bridge/br.c:111) [ 27.422113][ T1792] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 27.422116][ T1792] ? packet_sendmsg_spkt (af_packet.c:?) [ 27.422121][ T1792] notifier_call_chain (kernel/notifier.c:85) [ 27.422127][ T1792] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 27.422132][ T1792] ? netif_change_name (net/core/dev.c:1517) [ 27.422136][ T1792] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 27.422139][ T1792] ? __kernel_text_address (kernel/extable.c:79) [ 27.422141][ T1792] ? write_profile (profile.c:?) [ 27.422146][ T1792] netif_change_flags (net/core/dev.c:9882) [ 27.422150][ T1792] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 27.422153][ T1792] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 27.422156][ T1792] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 27.422157][ T1792] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 27.422159][ T1792] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 27.422162][ T1792] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 27.422164][ T1792] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 27.422166][ T1792] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 27.422168][ T1792] ? kasan_save_stack (mm/kasan/common.c:58) [ 27.422170][ T1792] ? kasan_save_stack (mm/kasan/common.c:57) [ 27.422172][ T1792] ? kasan_save_track (mm/kasan/common.c:78) [ 27.422173][ T1792] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 27.422175][ T1792] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 27.422177][ T1792] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 27.422180][ T1792] ? ___sys_sendmsg (net/socket.c:2758) [ 27.422184][ T1792] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 27.422186][ T1792] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 27.422188][ T1792] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.422190][ T1792] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 27.422192][ T1792] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.422193][ T1792] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.422195][ T1792] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 27.422197][ T1792] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 27.422198][ T1792] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 27.422200][ T1792] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 27.422203][ T1792] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 27.422207][ T1792] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.422209][ T1792] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 27.422214][ T1792] rtnl_newlink (net/core/rtnetlink.c:4215) [ 27.422219][ T1792] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 27.422221][ T1792] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 27.422226][ T1792] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 27.422228][ T1792] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 27.422230][ T1792] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 27.422231][ T1792] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 27.422235][ T1792] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 27.422237][ T1792] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 27.422240][ T1792] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 27.422242][ T1792] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 27.422246][ T1792] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 27.422248][ T1792] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 27.422252][ T1792] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 27.422255][ T1792] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 27.422258][ T1792] ? netlink_ack (./include/linux/skbuff.h:2718) [ 27.422264][ T1792] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 27.422266][ T1792] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 27.422271][ T1792] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 27.422275][ T1792] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 27.422277][ T1792] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 27.422282][ T1792] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 27.422285][ T1792] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 27.422289][ T1792] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 27.422291][ T1792] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 27.422296][ T1792] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 27.422299][ T1792] ____sys_sendmsg (net/socket.c:2713) [ 27.422301][ T1792] ? copy_msghdr_from_user (net/socket.c:2650) [ 27.422303][ T1792] ? sock_write_iter (net/socket.c:1269) [ 27.422305][ T1792] ? move_addr_to_kernel (net/socket.c:258) [ 27.422312][ T1792] ___sys_sendmsg (net/socket.c:2767) [ 27.422315][ T1792] ? copy_msghdr_from_user (net/socket.c:2619) [ 27.422331][ T1792] __sys_sendmsg (net/socket.c:2799) [ 27.422333][ T1792] ? __sys_sendmsg_sock (net/socket.c:2780) [ 27.422339][ T1792] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.422342][ T1792] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 27.422345][ T1792] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 27.422348][ T1792] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 27.422350][ T1792] RIP: 0033:0x7ff11f1f154e [ 27.422352][ T1792] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 27.422354][ T1792] RSP: 002b:00007ffe95de2f30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 27.422357][ T1792] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff11f1f154e [ 27.422358][ T1792] RDX: 0000000000000000 RSI: 00007ffe95de2fe0 RDI: 0000000000000005 [ 27.422359][ T1792] RBP: 00007ffe95de2f40 R08: 0000000000000000 R09: 0000000000000000 [ 27.422360][ T1792] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910838 [ 27.422361][ T1792] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe95de36a0 | [ 28.432336][ T1892] softirqs last disabled at (20262): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 28.432338][ T1892] Preemption disabled at: | [ 28.432339][ T1892] 0x0 | [ 28.432349][ T1892] Tainted: [W]=WARN [ 28.432350][ T1892] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 28.432352][ T1892] Call Trace: [ 28.432354][ T1892] [ 28.432356][ T1892] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 28.432362][ T1892] __might_resched.cold (kernel/sched/core.c:9234) [ 28.432367][ T1892] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 28.432371][ T1892] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 28.432375][ T1892] __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)) [ 28.432377][ T1892] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 28.432384][ T1892] ? 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) [ 28.432387][ T1892] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 28.432391][ T1892] put_chars (drivers/char/virtio_console.c:1176) [ 28.432394][ T1892] ? __send_to_port (drivers/char/virtio_console.c:654) [ 28.432400][ T1892] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 28.432408][ T1892] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 28.432411][ T1892] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.432415][ T1892] console_emit_next_record (kernel/printk/printk.c:3183) [ 28.432419][ T1892] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 28.432421][ T1892] ? 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)) [ 28.432425][ T1892] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.432427][ T1892] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.432431][ T1892] console_flush_one_record (kernel/printk/printk.c:3268) [ 28.432435][ T1892] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 28.432437][ T1892] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.432443][ T1892] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 28.432445][ T1892] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 28.432447][ T1892] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.432449][ T1892] ? 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) [ 28.432453][ T1892] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 28.432455][ T1892] ? vprintk_emit (kernel/printk/printk.c:2478) [ 28.432457][ T1892] vprintk_emit (kernel/printk/printk.c:2479) [ 28.432460][ T1892] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 28.432462][ T1892] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 28.432464][ T1892] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 28.432466][ T1892] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 28.432472][ T1892] _printk (kernel/printk/printk.c:2504) [ 28.432475][ T1892] ? snapshot_read.cold (user.c:?) [ 28.432483][ T1892] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 28.432487][ T1892] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 28.432491][ T1892] br_device_event (net/bridge/br.c:111) [ 28.432493][ T1892] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 28.432497][ T1892] ? packet_sendmsg_spkt (af_packet.c:?) [ 28.432503][ T1892] notifier_call_chain (kernel/notifier.c:85) [ 28.432509][ T1892] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 28.432514][ T1892] ? netif_change_name (net/core/dev.c:1517) [ 28.432517][ T1892] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 28.432521][ T1892] ? __kernel_text_address (kernel/extable.c:79) [ 28.432523][ T1892] ? write_profile (profile.c:?) [ 28.432528][ T1892] netif_change_flags (net/core/dev.c:9882) [ 28.432532][ T1892] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 28.432535][ T1892] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 28.432538][ T1892] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 28.432539][ T1892] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 28.432541][ T1892] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 28.432544][ T1892] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 28.432546][ T1892] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 28.432548][ T1892] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 28.432551][ T1892] ? kasan_save_stack (mm/kasan/common.c:58) [ 28.432553][ T1892] ? kasan_save_stack (mm/kasan/common.c:57) [ 28.432554][ T1892] ? kasan_save_track (mm/kasan/common.c:78) [ 28.432555][ T1892] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 28.432558][ T1892] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.432560][ T1892] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 28.432563][ T1892] ? ___sys_sendmsg (net/socket.c:2758) [ 28.432567][ T1892] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.432569][ T1892] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 28.432572][ T1892] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.432573][ T1892] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.432575][ T1892] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.432576][ T1892] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.432578][ T1892] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 28.432580][ T1892] ? __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) [ 28.432581][ T1892] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 28.432583][ T1892] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 28.432586][ T1892] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 28.432590][ T1892] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.432592][ T1892] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 28.432597][ T1892] rtnl_newlink (net/core/rtnetlink.c:4215) [ 28.432603][ T1892] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 28.432605][ T1892] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.432609][ T1892] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.432611][ T1892] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.432613][ T1892] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 28.432615][ T1892] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 28.432619][ T1892] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 28.432621][ T1892] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 28.432624][ T1892] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 28.432625][ T1892] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.432630][ T1892] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.432632][ T1892] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.432635][ T1892] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 28.432638][ T1892] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 28.432641][ T1892] ? netlink_ack (./include/linux/skbuff.h:2718) [ 28.432648][ T1892] ? 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)) [ 28.432650][ T1892] ? 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)) [ 28.432655][ T1892] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 28.432659][ T1892] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 28.432661][ T1892] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.432665][ T1892] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 28.432669][ T1892] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 28.432673][ T1892] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 28.432675][ T1892] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 28.432680][ T1892] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 28.432683][ T1892] ____sys_sendmsg (net/socket.c:2713) [ 28.432685][ T1892] ? copy_msghdr_from_user (net/socket.c:2650) [ 28.432688][ T1892] ? sock_write_iter (net/socket.c:1269) [ 28.432689][ T1892] ? move_addr_to_kernel (net/socket.c:258) [ 28.432697][ T1892] ___sys_sendmsg (net/socket.c:2767) [ 28.432699][ T1892] ? copy_msghdr_from_user (net/socket.c:2619) [ 28.432721][ T1892] __sys_sendmsg (net/socket.c:2799) [ 28.432724][ T1892] ? __sys_sendmsg_sock (net/socket.c:2780) [ 28.432731][ T1892] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.432734][ T1892] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 28.432737][ T1892] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 28.432740][ T1892] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 28.432742][ T1892] RIP: 0033:0x7fde5ce9154e [ 28.432744][ T1892] 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 [ 28.432746][ T1892] RSP: 002b:00007ffd06561f30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 28.432749][ T1892] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fde5ce9154e [ 28.432750][ T1892] RDX: 0000000000000000 RSI: 00007ffd06561fe0 RDI: 0000000000000005 [ 28.432751][ T1892] RBP: 00007ffd06561f40 R08: 0000000000000000 R09: 0000000000000000 [ 28.432752][ T1892] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910839 [ 28.432752][ T1892] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd065626a0 | [ 30.403385][ T39] softirqs last disabled at (213402): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 30.403388][ T39] Preemption disabled at: | [ 30.403388][ T39] 0x0 | [ 30.403399][ T39] Tainted: [W]=WARN [ 30.403400][ T39] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 30.403402][ T39] Workqueue: events_unbound linkwatch_event [ 30.403405][ T39] Call Trace: [ 30.403407][ T39] [ 30.403408][ T39] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 30.403415][ T39] __might_resched.cold (kernel/sched/core.c:9234) [ 30.403421][ T39] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 30.403427][ 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) [ 30.403432][ 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)) [ 30.403434][ T39] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 30.403441][ 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) [ 30.403444][ T39] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 30.403448][ T39] put_chars (drivers/char/virtio_console.c:1176) [ 30.403450][ T39] ? __send_to_port (drivers/char/virtio_console.c:654) [ 30.403453][ T39] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 30.403456][ T39] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 30.403459][ T39] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 30.403463][ T39] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 30.403468][ T39] ? mark_usage (kernel/locking/lockdep.c:4690) [ 30.403470][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.403471][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.403476][ T39] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 30.403478][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 30.403482][ T39] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.403486][ T39] console_emit_next_record (kernel/printk/printk.c:3183) [ 30.403491][ T39] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 30.403493][ 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)) [ 30.403496][ T39] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.403498][ T39] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.403502][ T39] console_flush_one_record (kernel/printk/printk.c:3268) [ 30.403506][ T39] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 30.403508][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.403514][ T39] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 30.403517][ T39] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 30.403519][ T39] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.403520][ 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) [ 30.403524][ T39] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 30.403526][ T39] ? vprintk_emit (kernel/printk/printk.c:2478) [ 30.403529][ T39] vprintk_emit (kernel/printk/printk.c:2479) [ 30.403532][ T39] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 30.403534][ T39] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 30.403536][ T39] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 30.403540][ T39] _printk (kernel/printk/printk.c:2504) [ 30.403544][ T39] ? snapshot_read.cold (user.c:?) [ 30.403549][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 30.403553][ T39] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 30.403557][ T39] br_init_port (net/bridge/br_stp_if.c:39) [ 30.403560][ T39] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 30.403562][ T39] br_port_carrier_check (net/bridge/br_if.c:90) [ 30.403566][ T39] br_device_event (net/bridge/br.c:101) [ 30.403569][ T39] ? packet_sendmsg_spkt (af_packet.c:?) [ 30.403571][ T39] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 30.403578][ T39] notifier_call_chain (kernel/notifier.c:85) [ 30.403585][ T39] netif_state_change (net/core/dev.c:1625) [ 30.403592][ T39] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 30.403598][ T39] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 30.403600][ T39] __linkwatch_run_queue (net/core/link_watch.c:240) [ 30.403603][ T39] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 30.403606][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 30.403610][ T39] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 30.403612][ T39] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 30.403616][ T39] process_one_work (kernel/workqueue.c:3387) [ 30.403623][ T39] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 30.403626][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 30.403634][ T39] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 30.403641][ T39] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 30.403643][ T39] kthread (kernel/kthread.c:436) [ 30.403645][ T39] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 30.403649][ T39] ? kthread_affine_preferred (kernel/kthread.c:857) [ 30.403652][ T39] ret_from_fork (arch/x86/kernel/process.c:158) [ 30.403656][ T39] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 30.403660][ T39] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 30.403663][ T39] ? kthread_affine_preferred (kernel/kthread.c:857) [ 30.403666][ T39] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 31.807651][ T2195] softirqs last disabled at (12948): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:119) | [ 31.807653][ T2195] Preemption disabled at: | [ 31.807654][ T2195] 0x0 | [ 31.807664][ T2195] Tainted: [W]=WARN [ 31.807665][ T2195] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 31.807667][ T2195] Call Trace: [ 31.807668][ T2195] [ 31.807670][ T2195] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 31.807676][ T2195] __might_resched.cold (kernel/sched/core.c:9234) [ 31.807681][ T2195] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 31.807685][ T2195] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 31.807689][ T2195] __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)) [ 31.807691][ T2195] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 31.807697][ T2195] ? 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) [ 31.807700][ T2195] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 31.807704][ T2195] put_chars (drivers/char/virtio_console.c:1176) [ 31.807707][ T2195] ? __send_to_port (drivers/char/virtio_console.c:654) [ 31.807708][ T2195] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 31.807712][ T2195] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 31.807717][ T2195] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 31.807729][ T2195] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 31.807732][ T2195] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.807733][ T2195] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 31.807737][ T2195] console_emit_next_record (kernel/printk/printk.c:3183) [ 31.807742][ T2195] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 31.807743][ T2195] ? 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)) [ 31.807747][ T2195] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.807748][ T2195] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 31.807752][ T2195] console_flush_one_record (kernel/printk/printk.c:3268) [ 31.807756][ T2195] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 31.807758][ T2195] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.807764][ T2195] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 31.807767][ T2195] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 31.807768][ T2195] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.807770][ T2195] ? 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) [ 31.807774][ T2195] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 31.807776][ T2195] ? vprintk_emit (kernel/printk/printk.c:2478) [ 31.807778][ T2195] vprintk_emit (kernel/printk/printk.c:2479) [ 31.807781][ T2195] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 31.807784][ T2195] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 31.807785][ T2195] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 31.807790][ T2195] _printk (kernel/printk/printk.c:2504) [ 31.807794][ T2195] ? snapshot_read.cold (user.c:?) [ 31.807799][ T2195] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 31.807803][ T2195] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 31.807807][ T2195] br_init_port (net/bridge/br_stp_if.c:39) [ 31.807810][ T2195] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 31.807812][ T2195] br_device_event (net/bridge/br.c:120) [ 31.807815][ T2195] ? packet_sendmsg_spkt (af_packet.c:?) [ 31.807816][ T2195] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 31.807823][ T2195] notifier_call_chain (kernel/notifier.c:85) [ 31.807829][ T2195] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9853) [ 31.807834][ T2195] ? netif_change_name (net/core/dev.c:1517) [ 31.807838][ T2195] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 31.807840][ T2195] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 31.807843][ T2195] ? __kernel_text_address (kernel/extable.c:79) [ 31.807844][ T2195] ? write_profile (profile.c:?) [ 31.807849][ T2195] netif_change_flags (net/core/dev.c:9882) [ 31.807853][ T2195] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 31.807856][ T2195] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 31.807858][ T2195] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 31.807860][ T2195] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 31.807862][ T2195] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 31.807865][ T2195] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 31.807867][ T2195] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 31.807869][ T2195] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 31.807871][ T2195] ? kasan_save_stack (mm/kasan/common.c:58) [ 31.807874][ T2195] ? kasan_save_stack (mm/kasan/common.c:57) [ 31.807875][ T2195] ? kasan_save_track (mm/kasan/common.c:78) [ 31.807876][ T2195] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 31.807878][ T2195] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.807880][ T2195] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 31.807883][ T2195] ? ___sys_sendmsg (net/socket.c:2758) [ 31.807887][ T2195] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 31.807889][ T2195] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 31.807892][ T2195] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.807895][ T2195] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 31.807897][ T2195] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.807898][ T2195] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.807900][ T2195] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 31.807902][ T2195] ? __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) [ 31.807905][ T2195] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 31.807907][ T2195] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 31.807911][ T2195] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 31.807915][ T2195] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.807918][ T2195] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 31.807924][ T2195] rtnl_newlink (net/core/rtnetlink.c:4215) [ 31.807930][ T2195] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 31.807932][ T2195] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.807938][ T2195] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 31.807940][ T2195] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 31.807942][ T2195] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 31.807944][ T2195] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 31.807948][ T2195] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 31.807951][ T2195] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 31.807954][ T2195] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 31.807956][ T2195] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.807960][ T2195] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 31.807962][ T2195] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 31.807966][ T2195] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 31.807968][ T2195] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 31.807971][ T2195] ? netlink_ack (./include/linux/skbuff.h:2718) [ 31.807977][ T2195] ? 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)) [ 31.807979][ T2195] ? 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)) [ 31.807983][ T2195] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 31.807987][ T2195] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 31.807990][ T2195] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 31.807994][ T2195] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 31.807998][ T2195] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 31.808002][ T2195] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 31.808004][ T2195] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 31.808009][ T2195] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 31.808012][ T2195] ____sys_sendmsg (net/socket.c:2713) [ 31.808014][ T2195] ? copy_msghdr_from_user (net/socket.c:2650) [ 31.808016][ T2195] ? sock_write_iter (net/socket.c:1269) [ 31.808018][ T2195] ? move_addr_to_kernel (net/socket.c:258) [ 31.808025][ T2195] ___sys_sendmsg (net/socket.c:2767) [ 31.808028][ T2195] ? copy_msghdr_from_user (net/socket.c:2619) [ 31.808044][ T2195] __sys_sendmsg (net/socket.c:2799) [ 31.808047][ T2195] ? __sys_sendmsg_sock (net/socket.c:2780) [ 31.808053][ T2195] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.808056][ T2195] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 31.808059][ T2195] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 31.808062][ T2195] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 31.808064][ T2195] RIP: 0033:0x7feddbb6d54e [ 31.808067][ T2195] 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 [ 31.808068][ T2195] RSP: 002b:00007ffd8ef7ad40 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 31.808071][ T2195] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007feddbb6d54e [ 31.808073][ T2195] RDX: 0000000000000000 RSI: 00007ffd8ef7adf0 RDI: 0000000000000005 [ 31.808073][ T2195] RBP: 00007ffd8ef7ad50 R08: 0000000000000000 R09: 0000000000000000 [ 31.808074][ T2195] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91083d [ 31.808075][ T2195] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd8ef7b4b0 | [ 33.257401][ T38] softirqs last disabled at (204066): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 33.257404][ T38] Preemption disabled at: | [ 33.257404][ T38] 0x0 | [ 33.257415][ T38] Tainted: [W]=WARN [ 33.257416][ T38] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 33.257418][ T38] Workqueue: events_unbound linkwatch_event [ 33.257421][ T38] Call Trace: [ 33.257423][ T38] [ 33.257425][ T38] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 33.257431][ T38] __might_resched.cold (kernel/sched/core.c:9234) [ 33.257436][ T38] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 33.257440][ 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) [ 33.257444][ 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)) [ 33.257446][ T38] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 33.257453][ 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) [ 33.257456][ T38] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 33.257460][ T38] put_chars (drivers/char/virtio_console.c:1176) [ 33.257462][ T38] ? __send_to_port (drivers/char/virtio_console.c:654) [ 33.257465][ T38] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 33.257468][ T38] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 33.257471][ T38] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 33.257475][ T38] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 33.257478][ T38] ? mark_usage (kernel/locking/lockdep.c:4690) [ 33.257480][ T38] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.257482][ T38] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.257486][ T38] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 33.257488][ T38] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 33.257492][ T38] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 33.257497][ T38] console_emit_next_record (kernel/printk/printk.c:3183) [ 33.257501][ T38] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 33.257502][ 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)) [ 33.257506][ T38] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.257508][ T38] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 33.257512][ T38] console_flush_one_record (kernel/printk/printk.c:3268) [ 33.257516][ T38] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 33.257518][ T38] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 33.257523][ T38] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 33.257526][ T38] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 33.257528][ T38] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 33.257530][ 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) [ 33.257534][ T38] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 33.257535][ T38] ? vprintk_emit (kernel/printk/printk.c:2478) [ 33.257538][ T38] vprintk_emit (kernel/printk/printk.c:2479) [ 33.257541][ T38] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 33.257543][ T38] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 33.257545][ T38] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 33.257551][ T38] _printk (kernel/printk/printk.c:2504) [ 33.257556][ T38] ? snapshot_read.cold (user.c:?) [ 33.257562][ T38] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 33.257566][ T38] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 33.257570][ T38] br_init_port (net/bridge/br_stp_if.c:39) [ 33.257573][ T38] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 33.257575][ T38] br_port_carrier_check (net/bridge/br_if.c:90) [ 33.257579][ T38] br_device_event (net/bridge/br.c:101) [ 33.257582][ T38] ? packet_sendmsg_spkt (af_packet.c:?) [ 33.257584][ T38] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 33.257591][ T38] notifier_call_chain (kernel/notifier.c:85) [ 33.257596][ T38] netif_state_change (net/core/dev.c:1625) [ 33.257601][ T38] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 33.257606][ T38] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 33.257608][ T38] __linkwatch_run_queue (net/core/link_watch.c:240) [ 33.257611][ T38] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 33.257614][ T38] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 33.257618][ T38] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 33.257620][ T38] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 33.257624][ T38] process_one_work (kernel/workqueue.c:3387) [ 33.257631][ T38] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 33.257634][ T38] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 33.257641][ T38] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 33.257648][ T38] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 33.257651][ T38] kthread (kernel/kthread.c:436) [ 33.257653][ T38] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 33.257656][ T38] ? kthread_affine_preferred (kernel/kthread.c:857) [ 33.257659][ T38] ret_from_fork (arch/x86/kernel/process.c:158) [ 33.257663][ T38] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 33.257667][ T38] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 33.257670][ T38] ? kthread_affine_preferred (kernel/kthread.c:857) [ 33.257673][ T38] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 34.908067][ T2458] softirqs last disabled at (23174): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 34.908069][ T2458] Preemption disabled at: | [ 34.908070][ T2458] 0x0 | [ 34.908081][ T2458] Tainted: [W]=WARN [ 34.908081][ T2458] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 34.908083][ T2458] Call Trace: [ 34.908085][ T2458] [ 34.908086][ T2458] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 34.908093][ T2458] __might_resched.cold (kernel/sched/core.c:9234) [ 34.908097][ T2458] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 34.908102][ T2458] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 34.908106][ T2458] __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)) [ 34.908108][ T2458] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 34.908115][ T2458] ? 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) [ 34.908117][ T2458] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 34.908121][ T2458] put_chars (drivers/char/virtio_console.c:1176) [ 34.908124][ T2458] ? __send_to_port (drivers/char/virtio_console.c:654) [ 34.908130][ T2458] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 34.908137][ T2458] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 34.908140][ T2458] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 34.908145][ T2458] console_emit_next_record (kernel/printk/printk.c:3183) [ 34.908149][ T2458] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 34.908151][ T2458] ? 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)) [ 34.908154][ T2458] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.908157][ T2458] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 34.908161][ T2458] console_flush_one_record (kernel/printk/printk.c:3268) [ 34.908165][ T2458] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 34.908167][ T2458] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.908172][ T2458] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 34.908175][ T2458] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 34.908176][ T2458] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.908178][ T2458] ? 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) [ 34.908182][ T2458] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 34.908184][ T2458] ? vprintk_emit (kernel/printk/printk.c:2478) [ 34.908186][ T2458] vprintk_emit (kernel/printk/printk.c:2479) [ 34.908189][ T2458] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 34.908191][ T2458] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 34.908193][ T2458] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 34.908195][ T2458] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 34.908200][ T2458] _printk (kernel/printk/printk.c:2504) [ 34.908203][ T2458] ? snapshot_read.cold (user.c:?) [ 34.908211][ T2458] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 34.908216][ T2458] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 34.908219][ T2458] br_device_event (net/bridge/br.c:111) [ 34.908221][ T2458] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 34.908225][ T2458] ? packet_sendmsg_spkt (af_packet.c:?) [ 34.908231][ T2458] notifier_call_chain (kernel/notifier.c:85) [ 34.908236][ T2458] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 34.908242][ T2458] ? netif_change_name (net/core/dev.c:1517) [ 34.908245][ T2458] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 34.908248][ T2458] ? __kernel_text_address (kernel/extable.c:79) [ 34.908251][ T2458] ? write_profile (profile.c:?) [ 34.908256][ T2458] netif_change_flags (net/core/dev.c:9882) [ 34.908259][ T2458] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 34.908263][ T2458] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 34.908265][ T2458] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 34.908266][ T2458] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 34.908268][ T2458] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 34.908272][ T2458] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 34.908273][ T2458] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 34.908275][ T2458] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 34.908278][ T2458] ? kasan_save_stack (mm/kasan/common.c:58) [ 34.908280][ T2458] ? kasan_save_stack (mm/kasan/common.c:57) [ 34.908281][ T2458] ? kasan_save_track (mm/kasan/common.c:78) [ 34.908282][ T2458] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 34.908285][ T2458] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.908286][ T2458] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 34.908290][ T2458] ? ___sys_sendmsg (net/socket.c:2758) [ 34.908293][ T2458] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.908295][ T2458] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 34.908298][ T2458] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.908300][ T2458] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 34.908301][ T2458] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.908302][ T2458] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.908304][ T2458] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 34.908306][ T2458] ? __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) [ 34.908308][ T2458] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 34.908309][ T2458] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 34.908313][ T2458] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 34.908316][ T2458] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.908319][ T2458] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 34.908324][ T2458] rtnl_newlink (net/core/rtnetlink.c:4215) [ 34.908329][ T2458] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 34.908331][ T2458] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.908335][ T2458] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.908337][ T2458] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 34.908340][ T2458] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 34.908341][ T2458] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 34.908345][ T2458] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 34.908347][ T2458] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 34.908350][ T2458] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 34.908351][ T2458] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 34.908356][ T2458] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 34.908358][ T2458] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 34.908361][ T2458] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 34.908364][ T2458] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 34.908367][ T2458] ? netlink_ack (./include/linux/skbuff.h:2718) [ 34.908373][ T2458] ? 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)) [ 34.908376][ T2458] ? 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)) [ 34.908380][ T2458] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 34.908384][ T2458] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 34.908386][ T2458] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 34.908391][ T2458] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 34.908394][ T2458] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 34.908398][ T2458] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 34.908400][ T2458] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 34.908405][ T2458] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 34.908408][ T2458] ____sys_sendmsg (net/socket.c:2713) [ 34.908410][ T2458] ? copy_msghdr_from_user (net/socket.c:2650) [ 34.908412][ T2458] ? sock_write_iter (net/socket.c:1269) [ 34.908414][ T2458] ? move_addr_to_kernel (net/socket.c:258) [ 34.908421][ T2458] ___sys_sendmsg (net/socket.c:2767) [ 34.908424][ T2458] ? copy_msghdr_from_user (net/socket.c:2619) [ 34.908440][ T2458] __sys_sendmsg (net/socket.c:2799) [ 34.908442][ T2458] ? __sys_sendmsg_sock (net/socket.c:2780) [ 34.908449][ T2458] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 34.908452][ T2458] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 34.908455][ T2458] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 34.908457][ T2458] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 34.908460][ T2458] RIP: 0033:0x7ff527d2954e [ 34.908462][ T2458] 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 [ 34.908464][ T2458] RSP: 002b:00007fff3c1eb9e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 34.908467][ T2458] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff527d2954e [ 34.908468][ T2458] RDX: 0000000000000000 RSI: 00007fff3c1eba90 RDI: 0000000000000005 [ 34.908469][ T2458] RBP: 00007fff3c1eb9f0 R08: 0000000000000000 R09: 0000000000000000 [ 34.908470][ T2458] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910840 [ 34.908470][ T2458] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff3c1ec150 | [ 36.191661][ T39] softirqs last disabled at (333728): br_port_carrier_check (./include/linux/spinlock.h:353 net/bridge/br_if.c:87) | [ 36.191663][ T39] Preemption disabled at: | [ 36.191664][ T39] 0x0 | [ 36.191674][ T39] Tainted: [W]=WARN [ 36.191675][ T39] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 36.191677][ T39] Workqueue: events_unbound linkwatch_event [ 36.191680][ T39] Call Trace: [ 36.191682][ T39] [ 36.191684][ T39] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 36.191690][ T39] __might_resched.cold (kernel/sched/core.c:9234) [ 36.191695][ T39] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 36.191699][ 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) [ 36.191703][ 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)) [ 36.191705][ T39] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 36.191712][ 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) [ 36.191715][ T39] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 36.191719][ T39] put_chars (drivers/char/virtio_console.c:1176) [ 36.191722][ T39] ? __send_to_port (drivers/char/virtio_console.c:654) [ 36.191724][ T39] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 36.191728][ T39] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 36.191730][ T39] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 36.191740][ T39] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 36.191744][ T39] ? mark_usage (kernel/locking/lockdep.c:4690) [ 36.191746][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 36.191747][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 36.191752][ T39] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 36.191754][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 36.191758][ T39] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 36.191762][ T39] console_emit_next_record (kernel/printk/printk.c:3183) [ 36.191767][ T39] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 36.191769][ 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)) [ 36.191772][ T39] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 36.191774][ T39] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 36.191778][ T39] console_flush_one_record (kernel/printk/printk.c:3268) [ 36.191782][ T39] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 36.191784][ T39] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 36.191790][ T39] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 36.191793][ T39] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 36.191795][ T39] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 36.191796][ 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) [ 36.191800][ T39] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 36.191802][ T39] ? vprintk_emit (kernel/printk/printk.c:2478) [ 36.191805][ T39] vprintk_emit (kernel/printk/printk.c:2479) [ 36.191808][ T39] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 36.191810][ T39] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 36.191812][ T39] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 36.191816][ T39] _printk (kernel/printk/printk.c:2504) [ 36.191820][ T39] ? snapshot_read.cold (user.c:?) [ 36.191825][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 36.191829][ T39] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 36.191834][ T39] br_init_port (net/bridge/br_stp_if.c:39) [ 36.191836][ T39] br_stp_enable_port (net/bridge/br_stp_if.c:93) [ 36.191838][ T39] br_port_carrier_check (net/bridge/br_if.c:90) [ 36.191842][ T39] br_device_event (net/bridge/br.c:101) [ 36.191845][ T39] ? packet_sendmsg_spkt (af_packet.c:?) [ 36.191847][ T39] ? nlmsg_notify (./include/net/netlink.h:1165 ./include/net/netlink.h:1184 net/netlink/af_netlink.c:2599) [ 36.191854][ T39] notifier_call_chain (kernel/notifier.c:85) [ 36.191860][ T39] netif_state_change (net/core/dev.c:1625) [ 36.191865][ T39] ? call_netdevice_notifiers_info (./include/net/net_namespace.h:422 (discriminator 7)) [ 36.191869][ T39] ? linkwatch_do_dev (net/core/link_watch.c:182 net/core/link_watch.c:166) [ 36.191871][ T39] __linkwatch_run_queue (net/core/link_watch.c:240) [ 36.191875][ T39] ? linkwatch_do_dev (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 36.191877][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 36.191882][ T39] linkwatch_event (net/core/link_watch.c:314 (discriminator 11)) [ 36.191884][ T39] ? __linkwatch_run_queue (net/core/link_watch.c:213) [ 36.191887][ T39] process_one_work (kernel/workqueue.c:3387) [ 36.191896][ T39] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 36.191899][ T39] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 36.191907][ T39] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 36.191914][ T39] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 36.191917][ T39] kthread (kernel/kthread.c:436) [ 36.191919][ T39] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 36.191922][ T39] ? kthread_affine_preferred (kernel/kthread.c:857) [ 36.191925][ T39] ret_from_fork (arch/x86/kernel/process.c:158) [ 36.191930][ T39] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 36.191933][ T39] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 36.191936][ T39] ? kthread_affine_preferred (kernel/kthread.c:857) [ 36.191939][ T39] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 37.193936][ T2653] softirqs last disabled at (22604): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) | [ 37.193938][ T2653] Preemption disabled at: | [ 37.193939][ T2653] 0x0 | [ 37.193949][ T2653] Tainted: [W]=WARN [ 37.193950][ T2653] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 37.193951][ T2653] Call Trace: [ 37.193953][ T2653] [ 37.193954][ T2653] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 37.193961][ T2653] __might_resched.cold (kernel/sched/core.c:9234) [ 37.193966][ T2653] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 37.193970][ 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) [ 37.193974][ 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)) [ 37.193976][ T2653] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 37.193982][ 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) [ 37.193985][ T2653] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 37.193989][ T2653] put_chars (drivers/char/virtio_console.c:1176) [ 37.193991][ T2653] ? __send_to_port (drivers/char/virtio_console.c:654) [ 37.193997][ T2653] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 37.194005][ T2653] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 37.194008][ T2653] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 37.194015][ T2653] console_emit_next_record (kernel/printk/printk.c:3183) [ 37.194020][ T2653] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 37.194022][ 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)) [ 37.194025][ T2653] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 37.194028][ T2653] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 37.194032][ T2653] console_flush_one_record (kernel/printk/printk.c:3268) [ 37.194036][ T2653] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 37.194038][ T2653] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 37.194044][ T2653] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 37.194046][ T2653] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 37.194048][ T2653] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 37.194050][ 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) [ 37.194054][ T2653] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 37.194055][ T2653] ? vprintk_emit (kernel/printk/printk.c:2478) [ 37.194058][ T2653] vprintk_emit (kernel/printk/printk.c:2479) [ 37.194061][ T2653] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 37.194062][ T2653] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 37.194065][ T2653] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 37.194067][ T2653] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 37.194072][ T2653] _printk (kernel/printk/printk.c:2504) [ 37.194075][ T2653] ? snapshot_read.cold (user.c:?) [ 37.194083][ T2653] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 37.194088][ T2653] br_stp_disable_port (net/bridge/br_stp_if.c:106) [ 37.194091][ T2653] br_device_event (net/bridge/br.c:111) [ 37.194093][ T2653] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 37.194097][ T2653] ? packet_sendmsg_spkt (af_packet.c:?) [ 37.194103][ T2653] notifier_call_chain (kernel/notifier.c:85) [ 37.194109][ T2653] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 37.194114][ T2653] ? netif_change_name (net/core/dev.c:1517) [ 37.194118][ T2653] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 37.194121][ T2653] ? __kernel_text_address (kernel/extable.c:79) [ 37.194123][ T2653] ? write_profile (profile.c:?) [ 37.194128][ T2653] netif_change_flags (net/core/dev.c:9882) [ 37.194132][ T2653] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 37.194136][ T2653] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 37.194138][ T2653] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 37.194139][ T2653] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 37.194141][ T2653] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 37.194144][ T2653] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 37.194146][ T2653] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 37.194148][ T2653] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 37.194151][ T2653] ? kasan_save_stack (mm/kasan/common.c:58) [ 37.194153][ T2653] ? kasan_save_stack (mm/kasan/common.c:57) [ 37.194154][ T2653] ? kasan_save_track (mm/kasan/common.c:78) [ 37.194155][ T2653] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 37.194158][ T2653] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 37.194160][ T2653] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 37.194163][ T2653] ? ___sys_sendmsg (net/socket.c:2758) [ 37.194167][ T2653] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 37.194169][ T2653] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 37.194171][ T2653] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 37.194173][ T2653] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 37.194175][ T2653] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 37.194176][ T2653] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 37.194177][ T2653] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 37.194180][ 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) [ 37.194181][ T2653] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 37.194183][ T2653] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 37.194186][ T2653] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 37.194190][ T2653] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 37.194192][ T2653] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 37.194197][ T2653] rtnl_newlink (net/core/rtnetlink.c:4215) [ 37.194203][ T2653] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 37.194205][ T2653] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 37.194209][ T2653] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 37.194211][ T2653] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 37.194213][ T2653] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 37.194215][ T2653] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 37.194219][ T2653] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 37.194221][ T2653] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 37.194224][ T2653] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 37.194226][ T2653] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 37.194230][ T2653] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 37.194232][ T2653] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 37.194236][ T2653] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 37.194239][ T2653] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 37.194242][ T2653] ? netlink_ack (./include/linux/skbuff.h:2718) [ 37.194248][ 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)) [ 37.194250][ 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)) [ 37.194255][ T2653] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 37.194259][ T2653] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 37.194261][ T2653] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 37.194265][ T2653] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 37.194270][ T2653] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 37.194275][ T2653] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 37.194277][ T2653] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 37.194285][ T2653] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 37.194288][ T2653] ____sys_sendmsg (net/socket.c:2713) [ 37.194290][ T2653] ? copy_msghdr_from_user (net/socket.c:2650) [ 37.194292][ T2653] ? sock_write_iter (net/socket.c:1269) [ 37.194294][ T2653] ? move_addr_to_kernel (net/socket.c:258) [ 37.194301][ T2653] ___sys_sendmsg (net/socket.c:2767) [ 37.194304][ T2653] ? copy_msghdr_from_user (net/socket.c:2619) [ 37.194320][ T2653] __sys_sendmsg (net/socket.c:2799) [ 37.194323][ T2653] ? __sys_sendmsg_sock (net/socket.c:2780) [ 37.194330][ T2653] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 37.194333][ T2653] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 37.194335][ T2653] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 37.194338][ T2653] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 37.194340][ T2653] RIP: 0033:0x7fb020a8154e [ 37.194343][ 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 [ 37.194344][ T2653] RSP: 002b:00007ffd806b2a80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 37.194347][ T2653] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fb020a8154e [ 37.194348][ T2653] RDX: 0000000000000000 RSI: 00007ffd806b2b30 RDI: 0000000000000005 [ 37.194349][ T2653] RBP: 00007ffd806b2a90 R08: 0000000000000000 R09: 0000000000000000 [ 37.194350][ T2653] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910842 [ 37.194351][ T2653] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd806b31f0 | [ 38.820551][ T2764] softirqs last disabled at (18428): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 38.820553][ T2764] Preemption disabled at: | [ 38.820554][ T2764] vprintk_emit (kernel/printk/printk.c:2471) | [ 38.820563][ T2764] Tainted: [W]=WARN [ 38.820564][ T2764] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 38.820566][ T2764] Call Trace: [ 38.820568][ T2764] [ 38.820570][ T2764] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 38.820577][ T2764] ? vprintk_emit (kernel/printk/printk.c:2471) [ 38.820579][ T2764] __might_resched.cold (kernel/sched/core.c:9234) [ 38.820585][ T2764] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 38.820590][ T2764] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 38.820594][ T2764] __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)) [ 38.820596][ T2764] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 38.820602][ T2764] ? 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) [ 38.820605][ T2764] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 38.820609][ T2764] put_chars (drivers/char/virtio_console.c:1176) [ 38.820611][ T2764] ? __send_to_port (drivers/char/virtio_console.c:654) [ 38.820614][ T2764] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 38.820619][ T2764] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 38.820627][ T2764] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 38.820630][ T2764] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.820632][ T2764] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 38.820636][ T2764] console_emit_next_record (kernel/printk/printk.c:3183) [ 38.820641][ T2764] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 38.820642][ T2764] ? 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)) [ 38.820646][ T2764] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.820648][ T2764] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 38.820651][ T2764] console_flush_one_record (kernel/printk/printk.c:3268) [ 38.820656][ T2764] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 38.820658][ T2764] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 38.820663][ T2764] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 38.820666][ T2764] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 38.820668][ T2764] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.820670][ T2764] ? 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) [ 38.820673][ T2764] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 38.820675][ T2764] ? vprintk_emit (kernel/printk/printk.c:2478) [ 38.820678][ T2764] vprintk_emit (kernel/printk/printk.c:2479) [ 38.820681][ T2764] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 38.820683][ T2764] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 38.820684][ T2764] ? netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 38.820687][ T2764] ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 38.820689][ T2764] ? netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 38.820691][ T2764] ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 38.820693][ T2764] ? ____sys_sendmsg (net/socket.c:2713) [ 38.820694][ T2764] ? ___sys_sendmsg (net/socket.c:2767) [ 38.820698][ T2764] _printk (kernel/printk/printk.c:2504) [ 38.820701][ T2764] ? snapshot_read.cold (user.c:?) [ 38.820706][ T2764] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 38.820710][ T2764] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 38.820713][ T2764] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 38.820716][ T2764] ? netdev_notice (net/core/dev.c:13194) [ 38.820721][ T2764] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.820722][ T2764] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 38.820725][ T2764] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 38.820727][ T2764] ? 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) [ 38.820729][ T2764] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 38.820733][ T2764] dev_set_allmulti (net/core/dev_api.c:315) [ 38.820739][ T2764] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 38.820755][ T2764] br_del_if (net/bridge/br_if.c:732) [ 38.820757][ T2764] ? rtnl_is_locked (net/core/rtnetlink.c:169) [ 38.820760][ T2764] do_set_master (net/core/rtnetlink.c:3055) [ 38.820763][ T2764] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 38.820767][ T2764] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 38.820770][ T2764] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 38.820772][ T2764] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 38.820774][ T2764] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 38.820778][ T2764] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 38.820780][ T2764] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 38.820782][ T2764] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 38.820784][ T2764] ? kasan_save_stack (mm/kasan/common.c:58) [ 38.820786][ T2764] ? kasan_save_stack (mm/kasan/common.c:57) [ 38.820788][ T2764] ? kasan_save_track (mm/kasan/common.c:78) [ 38.820789][ T2764] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 38.820791][ T2764] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 38.820793][ T2764] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 38.820795][ T2764] ? ___sys_sendmsg (net/socket.c:2758) [ 38.820799][ T2764] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 38.820801][ T2764] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 38.820803][ T2764] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.820805][ T2764] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 38.820807][ T2764] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.820808][ T2764] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.820810][ T2764] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 38.820812][ T2764] ? __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) [ 38.820814][ T2764] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 38.820816][ T2764] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 38.820819][ T2764] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 38.820820][ T2764] ? nla_get_range_signed (lib/nlattr.c:270) [ 38.820825][ T2764] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.820827][ T2764] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 38.820832][ T2764] rtnl_newlink (net/core/rtnetlink.c:4215) [ 38.820838][ T2764] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 38.820840][ T2764] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 38.820845][ T2764] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 38.820847][ T2764] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 38.820851][ T2764] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 38.820854][ T2764] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 38.820858][ T2764] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 38.820860][ T2764] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 38.820863][ T2764] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 38.820864][ T2764] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 38.820868][ T2764] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 38.820870][ T2764] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 38.820874][ T2764] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 38.820876][ T2764] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 38.820878][ T2764] ? netlink_ack (./include/linux/skbuff.h:2718) [ 38.820885][ T2764] ? 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)) [ 38.820887][ T2764] ? 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)) [ 38.820891][ T2764] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 38.820898][ T2764] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 38.820900][ T2764] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 38.820905][ T2764] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 38.820909][ T2764] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 38.820912][ T2764] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 38.820914][ T2764] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 38.820919][ T2764] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 38.820922][ T2764] ____sys_sendmsg (net/socket.c:2713) [ 38.820924][ T2764] ? copy_msghdr_from_user (net/socket.c:2650) [ 38.820927][ T2764] ? sock_write_iter (net/socket.c:1269) [ 38.820928][ T2764] ? move_addr_to_kernel (net/socket.c:258) [ 38.820936][ T2764] ___sys_sendmsg (net/socket.c:2767) [ 38.820938][ T2764] ? copy_msghdr_from_user (net/socket.c:2619) [ 38.820954][ T2764] __sys_sendmsg (net/socket.c:2799) [ 38.820957][ T2764] ? __sys_sendmsg_sock (net/socket.c:2780) [ 38.820963][ T2764] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.820966][ T2764] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 38.820969][ T2764] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 38.820972][ T2764] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 38.820974][ T2764] RIP: 0033:0x7f18ea1a254e [ 38.820978][ T2764] 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 [ 38.820980][ T2764] RSP: 002b:00007ffe0b999390 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 38.820983][ T2764] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f18ea1a254e [ 38.820984][ T2764] RDX: 0000000000000000 RSI: 00007ffe0b999440 RDI: 0000000000000005 [ 38.820985][ T2764] RBP: 00007ffe0b9993a0 R08: 0000000000000000 R09: 0000000000000000 [ 38.820986][ T2764] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910844 Finger prints: __alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars 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 __irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars