====================================== | [ 9.540302][ T187] softirqs last disabled at (32567): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.540304][ T187] Preemption disabled at: | [ 9.540305][ T187] 0x0 | [ 9.540316][ T187] Tainted: [W]=WARN [ 9.540317][ T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.540319][ T187] Call Trace: [ 9.540321][ T187] [ 9.540322][ T187] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.540329][ T187] __might_resched.cold (kernel/sched/core.c:9234) [ 9.540333][ T187] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.540337][ T187] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.540342][ T187] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 9.540345][ T187] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.540351][ T187] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 9.540353][ T187] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.540357][ T187] put_chars (drivers/char/virtio_console.c:1176) [ 9.540361][ T187] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.540362][ T187] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.540369][ T187] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.540377][ T187] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.540386][ T187] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.540388][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.540391][ T187] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.540395][ T187] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.540399][ T187] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.540401][ T187] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 9.540404][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.540406][ T187] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.540410][ T187] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.540414][ T187] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.540416][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.540421][ T187] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.540424][ T187] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.540426][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.540428][ T187] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.540432][ T187] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.540433][ T187] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.540437][ T187] vprintk_emit (kernel/printk/printk.c:2479) [ 9.540440][ T187] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.540444][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.540447][ T187] _printk (kernel/printk/printk.c:2504) [ 9.540451][ T187] ? snapshot_read.cold (user.c:?) [ 9.540454][ T187] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 9.540456][ T187] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.540460][ T187] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 9.540463][ T187] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.540466][ T187] ? exit_notify (kernel/exit.c:780) [ 9.540468][ T187] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.540471][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.540475][ T187] do_group_exit (kernel/exit.c:1151) [ 9.540478][ T187] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.540480][ T187] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.540482][ T187] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.540485][ T187] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.540488][ T187] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.540491][ T187] RIP: 0033:0x7f72774921b8 [ 9.540493][ T187] Code: Unable to access opcode bytes at 0x7f727749218e. Code starting with the faulting instruction =========================================== [ 9.540494][ T187] RSP: 002b:00007fff78616af8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.540497][ T187] RAX: ffffffffffffffda RBX: 00007f72775c2f88 RCX: 00007f72774921b8 [ 9.540498][ T187] RDX: 00007f72771dcfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.540499][ T187] RBP: 00007fff78616b50 R08: 0000000000000000 R09: 0000000000008010 [ 9.540500][ T187] R10: 00007fff78616910 R11: 0000000000000246 R12: 0000000000000001 [ 9.540500][ T187] R13: 0000000000000000 R14: 00007f72775c1680 R15: 00007f72775c2fa0 | [ 11.518323][ T265] softirqs last disabled at (20256): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 11.518325][ T265] Preemption disabled at: | [ 11.518326][ T265] vprintk_emit (kernel/printk/printk.c:2471) | [ 11.518336][ T265] Tainted: [W]=WARN [ 11.518337][ T265] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.518338][ T265] Call Trace: [ 11.518339][ T265] [ 11.518341][ T265] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.518347][ T265] ? vprintk_emit (kernel/printk/printk.c:2471) [ 11.518349][ T265] __might_resched.cold (kernel/sched/core.c:9234) [ 11.518353][ T265] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.518357][ T265] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.518363][ T265] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 11.518365][ T265] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.518371][ T265] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 11.518373][ T265] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.518376][ T265] put_chars (drivers/char/virtio_console.c:1176) [ 11.518379][ T265] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.518383][ T265] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 11.518387][ T265] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.518390][ T265] ? mark_usage (kernel/locking/lockdep.c:4690) [ 11.518392][ T265] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.518393][ T265] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.518397][ T265] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.518399][ T265] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 11.518403][ T265] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.518406][ T265] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.518410][ T265] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.518414][ T265] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.518416][ T265] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 11.518419][ T265] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.518421][ T265] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.518426][ T265] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.518430][ T265] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.518432][ T265] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.518437][ T265] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.518440][ T265] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.518442][ T265] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.518444][ T265] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 11.518448][ T265] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.518449][ T265] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.518453][ T265] vprintk_emit (kernel/printk/printk.c:2479) [ 11.518457][ T265] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.518459][ T265] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.518461][ T265] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 11.518465][ T265] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 11.518469][ T265] _printk (kernel/printk/printk.c:2504) [ 11.518472][ T265] ? snapshot_read.cold (user.c:?) [ 11.518476][ T265] ? br_multicast_flood (??:?) bridge [ 11.518489][ T265] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 11.518490][ T265] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 11.518492][ T265] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.518496][ T265] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge [ 11.518506][ T265] br_init_port (net/bridge/br_stp_if.c:39) bridge [ 11.518514][ T265] new_nbp (net/bridge/br_if.c:449) bridge [ 11.518524][ T265] br_add_if (net/bridge/br_if.c:592) bridge [ 11.518531][ T265] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 11.518535][ T265] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 11.518538][ T265] ? __kernel_text_address (kernel/extable.c:79) [ 11.518542][ T265] do_set_master (net/core/rtnetlink.c:3071) [ 11.518546][ T265] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 11.518550][ T265] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 11.518553][ T265] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 11.518554][ T265] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 11.518556][ T265] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 11.518560][ T265] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.518563][ T265] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.518565][ T265] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.518567][ T265] ? kasan_save_stack (mm/kasan/common.c:58) [ 11.518570][ T265] ? kasan_save_stack (mm/kasan/common.c:57) [ 11.518572][ T265] ? kasan_save_track (mm/kasan/common.c:78) [ 11.518574][ T265] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.518576][ T265] ? netlink_seq_next (net/netlink/af_netlink.c:2685) [ 11.518579][ T265] ? ___sys_sendmsg (net/socket.c:2757) [ 11.518583][ T265] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.518586][ T265] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.518588][ T265] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.518591][ T265] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.518592][ T265] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.518594][ T265] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.518596][ T265] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 11.518600][ T265] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 11.518602][ T265] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 11.518604][ T265] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.518607][ T265] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 11.518609][ T265] ? nla_get_range_signed (lib/nlattr.c:270) [ 11.518614][ T265] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 11.518619][ T265] rtnl_newlink (net/core/rtnetlink.c:4215) [ 11.518624][ T265] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.518626][ T265] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.518631][ T265] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.518633][ T265] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.518635][ T265] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.518637][ T265] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.518640][ T265] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.518642][ T265] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.518645][ T265] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.518647][ T265] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.518651][ T265] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.518653][ T265] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.518656][ T265] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 11.518658][ T265] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.518661][ T265] ? netlink_ack (./include/linux/skbuff.h:2718) [ 11.518668][ T265] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 11.518669][ T265] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 11.518673][ T265] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 11.518677][ T265] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 11.518680][ T265] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.518684][ T265] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 11.518688][ T265] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 11.518692][ T265] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 11.518697][ T265] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 11.518699][ T265] ? copy_msghdr_from_user (net/socket.c:2650) [ 11.518701][ T265] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 11.518703][ T265] ? move_addr_to_kernel (net/socket.c:258) [ 11.518710][ T265] ___sys_sendmsg (net/socket.c:2767) [ 11.518713][ T265] ? copy_msghdr_from_user (net/socket.c:2619) [ 11.518729][ T265] __sys_sendmsg (net/socket.c:2799) [ 11.518732][ T265] ? __sys_sendmsg_sock (net/socket.c:2780) [ 11.518738][ T265] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.518742][ T265] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.518744][ T265] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.518747][ T265] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.518749][ T265] RIP: 0033:0x7f19fdd9a54e [ 11.518753][ T265] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 11.518755][ T265] RSP: 002b:00007ffe3c3e46c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 11.518758][ T265] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f19fdd9a54e [ 11.518759][ T265] RDX: 0000000000000000 RSI: 00007ffe3c3e4770 RDI: 0000000000000005 [ 11.518760][ T265] RBP: 00007ffe3c3e46d0 R08: 0000000000000000 R09: 0000000000000000 [ 11.518761][ T265] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91596f [ 11.518762][ T265] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe3c3e4e30 | [ 12.887840][ T313] softirqs last disabled at (12434): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 12.887842][ T313] Preemption disabled at: | [ 12.887843][ T313] vprintk_emit (kernel/printk/printk.c:2471) | [ 12.887852][ T313] Tainted: [W]=WARN [ 12.887853][ T313] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.887854][ T313] Call Trace: [ 12.887856][ T313] [ 12.887857][ T313] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.887863][ T313] ? vprintk_emit (kernel/printk/printk.c:2471) [ 12.887865][ T313] __might_resched.cold (kernel/sched/core.c:9234) [ 12.887870][ T313] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.887874][ T313] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.887879][ T313] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 12.887881][ T313] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.887887][ T313] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 12.887889][ T313] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.887893][ T313] put_chars (drivers/char/virtio_console.c:1176) [ 12.887895][ T313] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 12.887897][ T313] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.887900][ T313] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.887904][ T313] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.887906][ T313] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.887910][ T313] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.887913][ T313] ? mark_usage (kernel/locking/lockdep.c:4690) [ 12.887914][ T313] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.887916][ T313] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.887920][ T313] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.887922][ T313] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 12.887925][ T313] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.887927][ T313] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.887931][ T313] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.887935][ T313] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.887937][ T313] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 12.887940][ T313] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.887942][ T313] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.887946][ T313] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.887950][ T313] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.887952][ T313] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.887957][ T313] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.887960][ T313] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.887962][ T313] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.887964][ T313] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 12.887968][ T313] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.887969][ T313] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.887973][ T313] vprintk_emit (kernel/printk/printk.c:2479) [ 12.887977][ T313] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.887979][ T313] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.887982][ T313] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 12.887985][ T313] _printk (kernel/printk/printk.c:2504) [ 12.887989][ T313] ? snapshot_read.cold (user.c:?) [ 12.887993][ T313] ? br_multicast_flood (??:?) bridge [ 12.888006][ T313] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 12.888007][ T313] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 12.888008][ T313] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 12.888013][ T313] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge [ 12.888029][ T313] br_init_port (net/bridge/br_stp_if.c:39) bridge [ 12.888038][ T313] new_nbp (net/bridge/br_if.c:449) bridge [ 12.888047][ T313] br_add_if (net/bridge/br_if.c:592) bridge [ 12.888054][ T313] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 12.888058][ T313] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 12.888061][ T313] ? __kernel_text_address (kernel/extable.c:79) [ 12.888067][ T313] do_set_master (net/core/rtnetlink.c:3071) [ 12.888072][ T313] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 12.888075][ T313] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 12.888078][ T313] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 12.888079][ T313] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 12.888081][ T313] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 12.888085][ T313] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.888087][ T313] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.888089][ T313] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.888091][ T313] ? kasan_save_stack (mm/kasan/common.c:58) [ 12.888095][ T313] ? kasan_save_stack (mm/kasan/common.c:57) [ 12.888096][ T313] ? kasan_save_track (mm/kasan/common.c:78) [ 12.888099][ T313] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.888101][ T313] ? netlink_seq_next (net/netlink/af_netlink.c:2685) [ 12.888104][ T313] ? ___sys_sendmsg (net/socket.c:2757) [ 12.888108][ T313] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.888110][ T313] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 12.888112][ T313] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.888114][ T313] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.888116][ T313] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.888118][ T313] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.888120][ T313] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 12.888124][ T313] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 12.888127][ T313] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 12.888129][ T313] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 12.888132][ T313] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 12.888134][ T313] ? nla_get_range_signed (lib/nlattr.c:270) [ 12.888139][ T313] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 12.888144][ T313] rtnl_newlink (net/core/rtnetlink.c:4215) [ 12.888149][ T313] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.888151][ T313] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.888155][ T313] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.888157][ T313] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.888159][ T313] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.888161][ T313] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.888164][ T313] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.888166][ T313] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 12.888169][ T313] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 12.888171][ T313] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.888175][ T313] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.888177][ T313] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.888180][ T313] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 12.888182][ T313] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 12.888184][ T313] ? netlink_ack (./include/linux/skbuff.h:2718) [ 12.888190][ T313] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 12.888192][ T313] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 12.888196][ T313] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 12.888200][ T313] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 12.888202][ T313] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.888206][ T313] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 12.888210][ T313] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 12.888214][ T313] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 12.888219][ T313] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 12.888221][ T313] ? copy_msghdr_from_user (net/socket.c:2650) [ 12.888224][ T313] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 12.888225][ T313] ? move_addr_to_kernel (net/socket.c:258) [ 12.888232][ T313] ___sys_sendmsg (net/socket.c:2767) [ 12.888235][ T313] ? copy_msghdr_from_user (net/socket.c:2619) [ 12.888250][ T313] __sys_sendmsg (net/socket.c:2799) [ 12.888253][ T313] ? __sys_sendmsg_sock (net/socket.c:2780) [ 12.888259][ T313] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.888262][ T313] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.888265][ T313] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.888268][ T313] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.888270][ T313] RIP: 0033:0x7f2d8f81c54e [ 12.888273][ T313] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 12.888275][ T313] RSP: 002b:00007ffc4f64fa90 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 12.888278][ T313] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f2d8f81c54e [ 12.888279][ T313] RDX: 0000000000000000 RSI: 00007ffc4f64fb40 RDI: 0000000000000005 [ 12.888280][ T313] RBP: 00007ffc4f64faa0 R08: 0000000000000000 R09: 0000000000000000 [ 12.888281][ T313] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915970 [ 12.888282][ T313] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc4f650200 | [ 13.947465][ T350] softirqs last disabled at (21656): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 13.947468][ T350] Preemption disabled at: | [ 13.947468][ T350] vprintk_emit (kernel/printk/printk.c:2471) | [ 13.947478][ T350] Tainted: [W]=WARN [ 13.947479][ T350] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.947481][ T350] Call Trace: [ 13.947482][ T350] [ 13.947484][ T350] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 13.947489][ T350] ? vprintk_emit (kernel/printk/printk.c:2471) [ 13.947492][ T350] __might_resched.cold (kernel/sched/core.c:9234) [ 13.947496][ T350] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 13.947500][ T350] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 13.947506][ T350] __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)) [ 13.947508][ T350] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.947513][ T350] ? 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) [ 13.947516][ T350] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.947519][ T350] put_chars (drivers/char/virtio_console.c:1176) [ 13.947521][ T350] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 13.947523][ T350] ? __send_to_port (drivers/char/virtio_console.c:654) [ 13.947526][ T350] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 13.947531][ T350] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 13.947534][ T350] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 13.947537][ T350] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 13.947540][ T350] ? mark_usage (kernel/locking/lockdep.c:4690) [ 13.947542][ T350] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.947544][ T350] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.947547][ T350] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 13.947549][ T350] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 13.947553][ T350] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.947555][ T350] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.947559][ T350] console_emit_next_record (kernel/printk/printk.c:3183) [ 13.947563][ T350] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 13.947565][ T350] ? 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)) [ 13.947568][ T350] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.947570][ T350] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.947574][ T350] console_flush_one_record (kernel/printk/printk.c:3268) [ 13.947578][ T350] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 13.947580][ T350] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.947585][ T350] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 13.947588][ T350] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 13.947590][ T350] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.947592][ T350] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 13.947596][ T350] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 13.947597][ T350] ? vprintk_emit (kernel/printk/printk.c:2478) [ 13.947601][ T350] vprintk_emit (kernel/printk/printk.c:2479) [ 13.947605][ T350] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 13.947607][ T350] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.947610][ T350] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 13.947614][ T350] _printk (kernel/printk/printk.c:2504) [ 13.947617][ T350] ? snapshot_read.cold (user.c:?) [ 13.947621][ T350] ? br_multicast_flood (??:?) bridge [ 13.947634][ T350] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 13.947635][ T350] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 13.947637][ T350] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 13.947641][ T350] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge [ 13.947651][ T350] br_init_port (net/bridge/br_stp_if.c:39) bridge [ 13.947659][ T350] new_nbp (net/bridge/br_if.c:449) bridge [ 13.947669][ T350] br_add_if (net/bridge/br_if.c:592) bridge [ 13.947676][ T350] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 13.947680][ T350] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 13.947683][ T350] ? __kernel_text_address (kernel/extable.c:79) [ 13.947687][ T350] do_set_master (net/core/rtnetlink.c:3071) [ 13.947691][ T350] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 13.947694][ T350] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 13.947697][ T350] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 13.947699][ T350] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 13.947701][ T350] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 13.947704][ T350] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 13.947706][ T350] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 13.947708][ T350] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 13.947711][ T350] ? kasan_save_stack (mm/kasan/common.c:58) [ 13.947714][ T350] ? kasan_save_stack (mm/kasan/common.c:57) [ 13.947716][ T350] ? kasan_save_track (mm/kasan/common.c:78) [ 13.947718][ T350] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.947720][ T350] ? netlink_seq_next (net/netlink/af_netlink.c:2685) [ 13.947723][ T350] ? ___sys_sendmsg (net/socket.c:2757) [ 13.947728][ T350] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.947730][ T350] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 13.947732][ T350] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.947734][ T350] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.947736][ T350] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.947738][ T350] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.947740][ T350] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 13.947744][ T350] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 13.947747][ T350] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 13.947749][ T350] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 13.947752][ T350] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 13.947754][ T350] ? nla_get_range_signed (lib/nlattr.c:270) [ 13.947759][ T350] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 13.947764][ T350] rtnl_newlink (net/core/rtnetlink.c:4215) [ 13.947769][ T350] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.947771][ T350] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.947775][ T350] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.947777][ T350] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 13.947779][ T350] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.947781][ T350] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.947784][ T350] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.947786][ T350] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 13.947789][ T350] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 13.947791][ T350] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.947795][ T350] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.947797][ T350] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 13.947800][ T350] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 13.947802][ T350] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 13.947805][ T350] ? netlink_ack (./include/linux/skbuff.h:2718) [ 13.947811][ T350] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 13.947812][ T350] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 13.947816][ T350] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 13.947820][ T350] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 13.947823][ T350] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.947827][ T350] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 13.947830][ T350] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 13.947834][ T350] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 13.947839][ T350] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 13.947841][ T350] ? copy_msghdr_from_user (net/socket.c:2650) [ 13.947844][ T350] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 13.947845][ T350] ? move_addr_to_kernel (net/socket.c:258) [ 13.947852][ T350] ___sys_sendmsg (net/socket.c:2767) [ 13.947855][ T350] ? copy_msghdr_from_user (net/socket.c:2619) [ 13.947870][ T350] __sys_sendmsg (net/socket.c:2799) [ 13.947873][ T350] ? __sys_sendmsg_sock (net/socket.c:2780) [ 13.947879][ T350] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.947883][ T350] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 13.947885][ T350] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 13.947888][ T350] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 13.947891][ T350] RIP: 0033:0x7f1e2177a54e [ 13.947894][ T350] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 13.947896][ T350] RSP: 002b:00007fff01671020 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 13.947899][ T350] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f1e2177a54e [ 13.947900][ T350] RDX: 0000000000000000 RSI: 00007fff016710d0 RDI: 0000000000000005 [ 13.947901][ T350] RBP: 00007fff01671030 R08: 0000000000000000 R09: 0000000000000000 [ 13.947902][ T350] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915971 [ 13.947903][ T350] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff01671790 | [ 23.627483][ T70] softirqs last disabled at (30698): vxlan_flush (./include/linux/spinlock.h:353 drivers/net/vxlan/vxlan_core.c:3094) vxlan | [ 23.627489][ T70] Preemption disabled at: | [ 23.627490][ T70] vprintk_emit (kernel/printk/printk.c:2471) | [ 23.627502][ T70] Tainted: [W]=WARN [ 23.627503][ T70] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 23.627505][ T70] Workqueue: netns cleanup_net [ 23.627509][ T70] Call Trace: [ 23.627512][ T70] [ 23.627514][ T70] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 23.627521][ T70] ? vprintk_emit (kernel/printk/printk.c:2471) [ 23.627525][ T70] __might_resched.cold (kernel/sched/core.c:9234) [ 23.627531][ T70] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 23.627537][ T70] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 23.627544][ T70] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 23.627548][ T70] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.627556][ T70] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 23.627560][ T70] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.627565][ T70] put_chars (drivers/char/virtio_console.c:1176) [ 23.627569][ T70] ? __send_to_port (drivers/char/virtio_console.c:654) [ 23.627575][ T70] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 23.627583][ T70] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 23.627586][ T70] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.627589][ T70] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.627597][ T70] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 23.627599][ T70] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 23.627604][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.627609][ T70] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.627616][ T70] console_emit_next_record (kernel/printk/printk.c:3183) [ 23.627622][ T70] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 23.627625][ T70] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 23.627630][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.627633][ T70] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.627640][ T70] console_flush_one_record (kernel/printk/printk.c:3268) [ 23.627646][ T70] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 23.627649][ T70] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.627658][ T70] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 23.627663][ T70] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 23.627665][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.627669][ T70] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 23.627675][ T70] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 23.627678][ T70] ? vprintk_emit (kernel/printk/printk.c:2478) [ 23.627683][ T70] vprintk_emit (kernel/printk/printk.c:2479) [ 23.627689][ T70] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 23.627692][ T70] ? process_one_work (kernel/workqueue.c:3387) [ 23.627695][ T70] ? kthread (kernel/kthread.c:436) [ 23.627698][ T70] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 23.627702][ T70] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 23.627710][ T70] _printk (kernel/printk/printk.c:2504) [ 23.627714][ T70] ? snapshot_read.cold (user.c:?) [ 23.627722][ T70] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 23.627727][ T70] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 23.627733][ T70] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 23.627737][ T70] ? netdev_notice (net/core/dev.c:13194) [ 23.627744][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.627748][ T70] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 23.627752][ T70] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 23.627754][ T70] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 23.627758][ T70] ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65) [ 23.627763][ T70] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 23.627770][ T70] dev_set_allmulti (net/core/dev_api.c:315) [ 23.627776][ T70] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge [ 23.627798][ T70] br_dev_delete (net/bridge/br_if.c:387) bridge [ 23.627812][ T70] br_net_exit_rtnl (net/bridge/br.c:414) bridge [ 23.627826][ T70] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 23.627832][ T70] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 23.627838][ T70] ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098) [ 23.627840][ T70] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 23.627845][ T70] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 23.627853][ T70] cleanup_net (net/core/net_namespace.c:706) [ 23.627858][ T70] ? net_passive_dec (./include/linux/llist.h:241) [ 23.627864][ T70] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.627867][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.627874][ T70] process_one_work (kernel/workqueue.c:3387) [ 23.627886][ T70] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 23.627890][ T70] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.627904][ T70] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 23.627911][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 23.627914][ T70] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 23.627918][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 23.627922][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 23.627925][ T70] kthread (kernel/kthread.c:436) [ 23.627927][ T70] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 23.627931][ T70] ? kthread_affine_preferred (kernel/kthread.c:857) [ 23.627936][ T70] ret_from_fork (arch/x86/kernel/process.c:158) [ 23.627940][ T70] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 23.627946][ T70] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 23.627950][ T70] ? kthread_affine_preferred (kernel/kthread.c:857) [ 23.627955][ T70] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 24.637488][ T487] softirqs last disabled at (23960): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 24.637490][ T487] Preemption disabled at: | [ 24.637491][ T487] vprintk_emit (kernel/printk/printk.c:2471) | [ 24.637500][ T487] Tainted: [W]=WARN [ 24.637501][ T487] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 24.637503][ T487] Call Trace: [ 24.637504][ T487] [ 24.637506][ T487] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 24.637511][ T487] ? vprintk_emit (kernel/printk/printk.c:2471) [ 24.637513][ T487] __might_resched.cold (kernel/sched/core.c:9234) [ 24.637518][ T487] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 24.637522][ T487] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 24.637527][ T487] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 24.637529][ T487] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 24.637535][ T487] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 24.637537][ T487] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 24.637541][ T487] put_chars (drivers/char/virtio_console.c:1176) [ 24.637543][ T487] ? __send_to_port (drivers/char/virtio_console.c:654) [ 24.637545][ T487] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 24.637549][ T487] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 24.637554][ T487] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 24.637561][ T487] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 24.637563][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.637565][ T487] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.637569][ T487] console_emit_next_record (kernel/printk/printk.c:3183) [ 24.637573][ T487] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 24.637575][ T487] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 24.637578][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.637580][ T487] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.637584][ T487] console_flush_one_record (kernel/printk/printk.c:3268) [ 24.637588][ T487] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 24.637590][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.637595][ T487] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 24.637598][ T487] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 24.637600][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.637602][ T487] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 24.637606][ T487] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 24.637608][ T487] ? vprintk_emit (kernel/printk/printk.c:2478) [ 24.637611][ T487] vprintk_emit (kernel/printk/printk.c:2479) [ 24.637615][ T487] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 24.637617][ T487] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 24.637618][ T487] ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 24.637621][ T487] ? netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 24.637623][ T487] ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 24.637625][ T487] ? ___sys_sendmsg (net/socket.c:2767) [ 24.637627][ T487] ? __sys_sendmsg (net/socket.c:2799) [ 24.637629][ T487] ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 24.637633][ T487] _printk (kernel/printk/printk.c:2504) [ 24.637637][ T487] ? snapshot_read.cold (user.c:?) [ 24.637642][ T487] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 24.637645][ T487] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 24.637649][ T487] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 24.637651][ T487] ? netdev_notice (net/core/dev.c:13194) [ 24.637655][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.637657][ T487] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 24.637660][ T487] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 24.637662][ T487] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 24.637664][ T487] ? 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) [ 24.637667][ T487] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 24.637672][ T487] dev_set_allmulti (net/core/dev_api.c:315) [ 24.637676][ T487] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge [ 24.637689][ T487] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 24.637695][ T487] br_del_if (net/bridge/br_if.c:732) bridge [ 24.637702][ T487] ? rtnl_is_locked (net/core/rtnetlink.c:169) [ 24.637705][ T487] do_set_master (net/core/rtnetlink.c:3055) [ 24.637709][ T487] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 24.637713][ T487] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 24.637716][ T487] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 24.637717][ T487] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 24.637720][ T487] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 24.637723][ T487] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 24.637726][ T487] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 24.637728][ T487] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 24.637730][ T487] ? kasan_save_stack (mm/kasan/common.c:58) [ 24.637733][ T487] ? kasan_save_stack (mm/kasan/common.c:57) [ 24.637735][ T487] ? kasan_save_track (mm/kasan/common.c:78) [ 24.637737][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.637739][ T487] ? netlink_seq_next (net/netlink/af_netlink.c:2685) [ 24.637741][ T487] ? ___sys_sendmsg (net/socket.c:2757) [ 24.637744][ T487] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.637746][ T487] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 24.637749][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.637751][ T487] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.637753][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.637754][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.637757][ T487] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 24.637760][ T487] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 24.637762][ T487] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 24.637764][ T487] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 24.637767][ T487] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 24.637769][ T487] ? nla_get_range_signed (lib/nlattr.c:270) [ 24.637774][ T487] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 24.637779][ T487] rtnl_newlink (net/core/rtnetlink.c:4215) [ 24.637784][ T487] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 24.637786][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.637790][ T487] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.637792][ T487] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 24.637794][ T487] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 24.637796][ T487] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 24.637799][ T487] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 24.637801][ T487] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 24.637804][ T487] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 24.637806][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.637810][ T487] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.637812][ T487] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 24.637815][ T487] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 24.637817][ T487] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 24.637820][ T487] ? netlink_ack (./include/linux/skbuff.h:2718) [ 24.637826][ T487] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 24.637827][ T487] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 24.637831][ T487] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 24.637835][ T487] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 24.637838][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.637842][ T487] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 24.637845][ T487] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 24.637849][ T487] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 24.637854][ T487] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 24.637857][ T487] ? copy_msghdr_from_user (net/socket.c:2650) [ 24.637859][ T487] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 24.637860][ T487] ? move_addr_to_kernel (net/socket.c:258) [ 24.637868][ T487] ___sys_sendmsg (net/socket.c:2767) [ 24.637870][ T487] ? copy_msghdr_from_user (net/socket.c:2619) [ 24.637886][ T487] __sys_sendmsg (net/socket.c:2799) [ 24.637889][ T487] ? __sys_sendmsg_sock (net/socket.c:2780) [ 24.637895][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.637898][ T487] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 24.637900][ T487] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 24.637903][ T487] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 24.637905][ T487] RIP: 0033:0x7f74bb7cf54e [ 24.637909][ T487] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 24.637911][ T487] RSP: 002b:00007fff9ab38c30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 24.637913][ T487] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f74bb7cf54e [ 24.637915][ T487] RDX: 0000000000000000 RSI: 00007fff9ab38ce0 RDI: 0000000000000005 [ 24.637916][ T487] RBP: 00007fff9ab38c40 R08: 0000000000000000 R09: 0000000000000000 [ 24.637917][ T487] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91597c Finger prints: __alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars vxlan_flush:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print