====================================== | [ 10.340739][ T243] softirqs last disabled at (19304): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 10.340742][ T243] Preemption disabled at: | [ 10.340743][ T243] vprintk_emit (kernel/printk/printk.c:2471) | [ 10.340751][ T243] Tainted: [W]=WARN [ 10.340752][ T243] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.340754][ T243] Call Trace: [ 10.340755][ T243] [ 10.340756][ T243] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.340762][ T243] ? vprintk_emit (kernel/printk/printk.c:2471) [ 10.340764][ T243] __might_resched.cold (kernel/sched/core.c:9234) [ 10.340769][ T243] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.340773][ T243] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.340777][ T243] __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)) [ 10.340783][ T243] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.340789][ T243] ? 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) [ 10.340792][ T243] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.340796][ T243] put_chars (drivers/char/virtio_console.c:1176) [ 10.340798][ T243] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.340804][ T243] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.340812][ T243] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.340815][ T243] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.340819][ T243] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.340822][ T243] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.340824][ T243] ? 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)) [ 10.340827][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.340830][ T243] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.340834][ T243] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.340838][ T243] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.340840][ T243] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.340845][ T243] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.340847][ T243] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.340849][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.340851][ T243] ? 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) [ 10.340855][ T243] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.340856][ T243] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.340859][ T243] vprintk_emit (kernel/printk/printk.c:2479) [ 10.340862][ T243] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.340864][ T243] ? save_trace (kernel/locking/lockdep.c:589) [ 10.340868][ T243] _printk (kernel/printk/printk.c:2504) [ 10.340872][ T243] ? snapshot_read.cold (user.c:?) [ 10.340875][ T243] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 10.340877][ T243] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 10.340881][ T243] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 10.340884][ T243] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.340886][ T243] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 10.340888][ T243] ? netdev_notice (net/core/dev.c:13194) [ 10.340891][ T243] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.340894][ T243] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.340896][ T243] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 10.340900][ T243] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.340902][ T243] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 10.340904][ T243] ? register_netdev (net/core/dev.c:11618) [ 10.340905][ T243] ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2)) [ 10.340910][ T243] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 10.340913][ T243] ? __kernel_text_address (kernel/extable.c:79) [ 10.340916][ T243] ? write_profile (profile.c:?) [ 10.340920][ T243] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 10.340925][ T243] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.340928][ T243] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 10.340930][ T243] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 10.340932][ T243] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 10.340934][ T243] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 10.340938][ T243] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.340940][ T243] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 10.340942][ T243] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.340944][ T243] ? kasan_save_stack (mm/kasan/common.c:58) [ 10.340946][ T243] ? kasan_save_stack (mm/kasan/common.c:57) [ 10.340947][ T243] ? kasan_save_track (mm/kasan/common.c:78) [ 10.340948][ T243] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 10.340950][ T243] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.340952][ T243] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 10.340955][ T243] ? ___sys_sendmsg (net/socket.c:2758) [ 10.340959][ T243] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.340961][ T243] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.340963][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.340965][ T243] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.340967][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.340968][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.340969][ T243] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 10.340971][ T243] ? __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) [ 10.340974][ T243] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 10.340976][ T243] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.340982][ T243] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 10.340983][ T243] ? nla_get_range_signed (lib/nlattr.c:270) [ 10.340988][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.340990][ T243] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 10.340995][ T243] rtnl_newlink (net/core/rtnetlink.c:4215) [ 10.341000][ T243] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.341002][ T243] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.341007][ T243] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.341009][ T243] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.341010][ T243] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.341012][ T243] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.341016][ T243] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.341018][ T243] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 10.341021][ T243] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.341022][ T243] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.341027][ T243] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.341029][ T243] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.341032][ T243] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 10.341035][ T243] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.341038][ T243] ? netlink_ack (./include/linux/skbuff.h:2718) [ 10.341044][ T243] ? 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)) [ 10.341046][ T243] ? 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)) [ 10.341050][ T243] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 10.341054][ T243] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 10.341057][ T243] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.341061][ T243] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 10.341064][ T243] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 10.341068][ T243] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.341070][ T243] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 10.341075][ T243] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 10.341078][ T243] ____sys_sendmsg (net/socket.c:2713) [ 10.341080][ T243] ? copy_msghdr_from_user (net/socket.c:2650) [ 10.341082][ T243] ? sock_write_iter (net/socket.c:1269) [ 10.341084][ T243] ? move_addr_to_kernel (net/socket.c:258) [ 10.341091][ T243] ___sys_sendmsg (net/socket.c:2767) [ 10.341093][ T243] ? copy_msghdr_from_user (net/socket.c:2619) [ 10.341109][ T243] __sys_sendmsg (net/socket.c:2799) [ 10.341112][ T243] ? __sys_sendmsg_sock (net/socket.c:2780) [ 10.341118][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.341120][ T243] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.341124][ T243] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.341126][ T243] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.341128][ T243] RIP: 0033:0x7f1666b5e54e [ 10.341132][ T243] 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 [ 10.341134][ T243] RSP: 002b:00007ffc2101ce70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 10.341136][ T243] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f1666b5e54e [ 10.341138][ T243] RDX: 0000000000000000 RSI: 00007ffc2101cf20 RDI: 0000000000000005 [ 10.341139][ T243] RBP: 00007ffc2101ce80 R08: 0000000000000000 R09: 0000000000000000 [ 10.341139][ T243] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9198a0 [ 10.341140][ T243] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc2101d5f0 | [ 23.256981][ T70] softirqs last disabled at (10522): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 23.256984][ T70] Preemption disabled at: | [ 23.256984][ T70] vprintk_emit (kernel/printk/printk.c:2471) | [ 23.256992][ T70] Tainted: [W]=WARN [ 23.256993][ T70] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 23.256995][ T70] Workqueue: netns cleanup_net [ 23.256998][ T70] Call Trace: [ 23.257000][ T70] [ 23.257001][ T70] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 23.257007][ T70] ? vprintk_emit (kernel/printk/printk.c:2471) [ 23.257009][ T70] __might_resched.cold (kernel/sched/core.c:9234) [ 23.257013][ T70] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 23.257017][ 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) [ 23.257022][ 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)) [ 23.257024][ T70] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.257030][ 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) [ 23.257033][ T70] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.257037][ T70] put_chars (drivers/char/virtio_console.c:1176) [ 23.257039][ T70] ? __send_to_port (drivers/char/virtio_console.c:654) [ 23.257043][ T70] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 23.257048][ T70] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 23.257052][ T70] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.257057][ T70] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 23.257061][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.257066][ T70] console_emit_next_record (kernel/printk/printk.c:3183) [ 23.257070][ T70] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 23.257072][ 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)) [ 23.257075][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.257077][ T70] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.257081][ T70] console_flush_one_record (kernel/printk/printk.c:3268) [ 23.257086][ T70] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 23.257087][ T70] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.257093][ T70] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 23.257096][ T70] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 23.257098][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.257099][ T70] ? 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) [ 23.257103][ T70] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 23.257105][ T70] ? vprintk_emit (kernel/printk/printk.c:2478) [ 23.257108][ T70] vprintk_emit (kernel/printk/printk.c:2479) [ 23.257111][ T70] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 23.257112][ T70] ? cleanup_net (net/core/net_namespace.c:706) [ 23.257114][ T70] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 23.257116][ T70] ? kthread (kernel/kthread.c:436) [ 23.257118][ T70] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 23.257121][ T70] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 23.257126][ T70] _printk (kernel/printk/printk.c:2504) [ 23.257130][ T70] ? snapshot_read.cold (user.c:?) [ 23.257135][ T70] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 23.257139][ T70] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 23.257143][ T70] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 23.257146][ T70] ? netdev_notice (net/core/dev.c:13194) [ 23.257150][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.257152][ T70] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 23.257155][ T70] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 23.257157][ 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) [ 23.257159][ T70] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 23.257163][ T70] dev_set_allmulti (net/core/dev_api.c:315) [ 23.257167][ T70] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 23.257171][ T70] ? unregister_netdevice_many (net/core/dev.c:12589) [ 23.257172][ T70] ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2)) [ 23.257178][ T70] br_dev_delete (net/bridge/br_if.c:387) [ 23.257181][ T70] br_net_exit_rtnl (net/bridge/br.c:414) [ 23.257185][ T70] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 23.257188][ T70] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 23.257192][ T70] ? netns_install (./include/linux/ns_common.h:26) [ 23.257194][ T70] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 23.257197][ T70] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 23.257202][ T70] cleanup_net (net/core/net_namespace.c:706) [ 23.257205][ T70] ? net_passive_dec (./include/linux/llist.h:241) [ 23.257209][ T70] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.257211][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.257214][ T70] process_one_work (kernel/workqueue.c:3387) [ 23.257221][ T70] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 23.257224][ T70] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.257231][ T70] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 23.257236][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 23.257238][ T70] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 23.257241][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 23.257243][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 23.257245][ T70] kthread (kernel/kthread.c:436) [ 23.257247][ T70] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 23.257251][ T70] ? kthread_affine_preferred (kernel/kthread.c:857) [ 23.257254][ T70] ret_from_fork (arch/x86/kernel/process.c:158) [ 23.257257][ T70] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 23.257260][ T70] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 23.257263][ T70] ? kthread_affine_preferred (kernel/kthread.c:857) [ 23.257266][ T70] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 25.442524][ T472] softirqs last disabled at (26770): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 25.442527][ T472] Preemption disabled at: | [ 25.442527][ T472] vprintk_emit (kernel/printk/printk.c:2471) | [ 25.442535][ T472] Tainted: [W]=WARN [ 25.442536][ T472] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 25.442538][ T472] Call Trace: [ 25.442539][ T472] [ 25.442541][ T472] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 25.442547][ T472] ? vprintk_emit (kernel/printk/printk.c:2471) [ 25.442548][ T472] __might_resched.cold (kernel/sched/core.c:9234) [ 25.442553][ T472] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 25.442557][ T472] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 25.442562][ T472] __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)) [ 25.442564][ T472] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.442570][ T472] ? 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) [ 25.442573][ T472] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.442577][ T472] put_chars (drivers/char/virtio_console.c:1176) [ 25.442579][ T472] ? __send_to_port (drivers/char/virtio_console.c:654) [ 25.442585][ T472] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 25.442592][ T472] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 25.442595][ T472] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.442600][ T472] console_emit_next_record (kernel/printk/printk.c:3183) [ 25.442604][ T472] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 25.442606][ T472] ? 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)) [ 25.442609][ T472] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.442611][ T472] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.442615][ T472] console_flush_one_record (kernel/printk/printk.c:3268) [ 25.442619][ T472] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 25.442621][ T472] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.442626][ T472] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 25.442629][ T472] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 25.442631][ T472] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.442632][ T472] ? 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) [ 25.442636][ T472] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 25.442638][ T472] ? vprintk_emit (kernel/printk/printk.c:2478) [ 25.442640][ T472] vprintk_emit (kernel/printk/printk.c:2479) [ 25.442643][ T472] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 25.442646][ T472] ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6)) [ 25.442651][ T472] _printk (kernel/printk/printk.c:2504) [ 25.442654][ T472] ? snapshot_read.cold (user.c:?) [ 25.442656][ T472] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 25.442659][ T472] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 25.442661][ T472] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 25.442663][ T472] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 25.442667][ T472] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 25.442670][ T472] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 25.442672][ T472] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 25.442675][ T472] ? netdev_notice (net/core/dev.c:13194) [ 25.442677][ T472] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.442680][ T472] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 25.442683][ T472] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 25.442686][ T472] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 25.442688][ T472] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 25.442690][ T472] ? register_netdev (net/core/dev.c:11618) [ 25.442692][ T472] ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2)) [ 25.442697][ T472] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 25.442700][ T472] ? __kernel_text_address (kernel/extable.c:79) [ 25.442702][ T472] ? write_profile (profile.c:?) [ 25.442706][ T472] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 25.442712][ T472] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 25.442715][ T472] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 25.442717][ T472] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 25.442718][ T472] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 25.442720][ T472] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 25.442723][ T472] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 25.442725][ T472] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 25.442727][ T472] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 25.442729][ T472] ? kasan_save_stack (mm/kasan/common.c:58) [ 25.442731][ T472] ? kasan_save_stack (mm/kasan/common.c:57) [ 25.442732][ T472] ? kasan_save_track (mm/kasan/common.c:78) [ 25.442734][ T472] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 25.442736][ T472] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.442738][ T472] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 25.442741][ T472] ? ___sys_sendmsg (net/socket.c:2758) [ 25.442744][ T472] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.442746][ T472] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 25.442749][ T472] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.442750][ T472] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.442752][ T472] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.442753][ T472] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.442755][ T472] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 25.442757][ T472] ? __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) [ 25.442758][ T472] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 25.442760][ T472] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 25.442763][ T472] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 25.442764][ T472] ? nla_get_range_signed (lib/nlattr.c:270) [ 25.442769][ T472] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.442771][ T472] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 25.442776][ T472] rtnl_newlink (net/core/rtnetlink.c:4215) [ 25.442782][ T472] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.442783][ T472] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.442788][ T472] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.442790][ T472] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.442791][ T472] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.442793][ T472] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 25.442797][ T472] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.442799][ T472] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 25.442802][ T472] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 25.442803][ T472] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.442808][ T472] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.442810][ T472] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.442813][ T472] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 25.442816][ T472] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 25.442819][ T472] ? netlink_ack (./include/linux/skbuff.h:2718) [ 25.442825][ T472] ? 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)) [ 25.442827][ T472] ? 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)) [ 25.442831][ T472] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 25.442835][ T472] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 25.442838][ T472] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.442842][ T472] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 25.442845][ T472] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 25.442853][ T472] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 25.442855][ T472] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 25.442860][ T472] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 25.442863][ T472] ____sys_sendmsg (net/socket.c:2713) [ 25.442866][ T472] ? copy_msghdr_from_user (net/socket.c:2650) [ 25.442868][ T472] ? sock_write_iter (net/socket.c:1269) [ 25.442869][ T472] ? move_addr_to_kernel (net/socket.c:258) [ 25.442876][ T472] ___sys_sendmsg (net/socket.c:2767) [ 25.442879][ T472] ? copy_msghdr_from_user (net/socket.c:2619) [ 25.442894][ T472] __sys_sendmsg (net/socket.c:2799) [ 25.442897][ T472] ? __sys_sendmsg_sock (net/socket.c:2780) [ 25.442903][ T472] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.442906][ T472] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 25.442909][ T472] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 25.442912][ T472] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 25.442914][ T472] RIP: 0033:0x7f5b2e62754e [ 25.442918][ T472] 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 [ 25.442920][ T472] RSP: 002b:00007fff6ab7ff90 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 25.442922][ T472] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f5b2e62754e [ 25.442924][ T472] RDX: 0000000000000000 RSI: 00007fff6ab80040 RDI: 0000000000000005 [ 25.442925][ T472] RBP: 00007fff6ab7ffa0 R08: 0000000000000000 R09: 0000000000000000 [ 25.442925][ T472] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9198af [ 25.442926][ T472] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff6ab80710 | [ 38.682892][ T70] softirqs last disabled at (169096): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 38.682894][ T70] Preemption disabled at: | [ 38.682895][ T70] vprintk_emit (kernel/printk/printk.c:2471) | [ 38.682903][ T70] Tainted: [W]=WARN [ 38.682904][ T70] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 38.682906][ T70] Workqueue: netns cleanup_net [ 38.682909][ T70] Call Trace: [ 38.682914][ T70] [ 38.682915][ T70] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 38.682922][ T70] ? vprintk_emit (kernel/printk/printk.c:2471) [ 38.682923][ T70] __might_resched.cold (kernel/sched/core.c:9234) [ 38.682928][ T70] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 38.682932][ 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) [ 38.682936][ 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)) [ 38.682938][ T70] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 38.682945][ 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) [ 38.682948][ T70] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 38.682952][ T70] put_chars (drivers/char/virtio_console.c:1176) [ 38.682954][ T70] ? __send_to_port (drivers/char/virtio_console.c:654) [ 38.682955][ T70] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 38.682959][ T70] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 38.682962][ T70] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 38.682967][ T70] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 38.682971][ T70] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 38.682976][ T70] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 38.682982][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.682987][ T70] console_emit_next_record (kernel/printk/printk.c:3183) [ 38.682991][ T70] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 38.682993][ 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)) [ 38.682996][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.682998][ T70] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 38.683002][ T70] console_flush_one_record (kernel/printk/printk.c:3268) [ 38.683006][ T70] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 38.683008][ T70] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 38.683013][ T70] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 38.683016][ T70] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 38.683018][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.683020][ T70] ? 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) [ 38.683023][ T70] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 38.683025][ T70] ? vprintk_emit (kernel/printk/printk.c:2478) [ 38.683028][ T70] vprintk_emit (kernel/printk/printk.c:2479) [ 38.683031][ T70] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 38.683033][ T70] ? cleanup_net (net/core/net_namespace.c:706) [ 38.683034][ T70] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 38.683036][ T70] ? kthread (kernel/kthread.c:436) [ 38.683039][ T70] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 38.683041][ T70] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 38.683046][ T70] _printk (kernel/printk/printk.c:2504) [ 38.683050][ T70] ? snapshot_read.cold (user.c:?) [ 38.683055][ T70] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 38.683058][ T70] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 38.683062][ T70] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 38.683065][ T70] ? netdev_notice (net/core/dev.c:13194) [ 38.683069][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.683071][ T70] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 38.683074][ T70] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 38.683076][ 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) [ 38.683078][ T70] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 38.683082][ T70] dev_set_allmulti (net/core/dev_api.c:315) [ 38.683086][ T70] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 38.683089][ T70] ? unregister_netdevice_many (net/core/dev.c:12589) [ 38.683091][ T70] ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2)) [ 38.683096][ T70] br_dev_delete (net/bridge/br_if.c:387) [ 38.683100][ T70] br_net_exit_rtnl (net/bridge/br.c:414) [ 38.683103][ T70] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 38.683107][ T70] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 38.683111][ T70] ? netns_install (./include/linux/ns_common.h:26) [ 38.683112][ T70] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 38.683115][ T70] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 38.683120][ T70] cleanup_net (net/core/net_namespace.c:706) [ 38.683123][ T70] ? net_passive_dec (./include/linux/llist.h:241) [ 38.683127][ T70] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 38.683129][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.683132][ T70] process_one_work (kernel/workqueue.c:3387) [ 38.683139][ T70] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 38.683142][ T70] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 38.683150][ T70] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 38.683154][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 38.683156][ T70] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 38.683159][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 38.683162][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 38.683164][ T70] kthread (kernel/kthread.c:436) [ 38.683166][ T70] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 38.683169][ T70] ? kthread_affine_preferred (kernel/kthread.c:857) [ 38.683172][ T70] ret_from_fork (arch/x86/kernel/process.c:158) [ 38.683175][ T70] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 38.683178][ T70] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 38.683182][ T70] ? kthread_affine_preferred (kernel/kthread.c:857) [ 38.683184][ T70] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 40.874536][ T711] softirqs last disabled at (23312): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 40.874538][ T711] Preemption disabled at: | [ 40.874539][ T711] vprintk_emit (kernel/printk/printk.c:2471) | [ 40.874547][ T711] Tainted: [W]=WARN [ 40.874548][ T711] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 40.874549][ T711] Call Trace: [ 40.874551][ T711] [ 40.874552][ T711] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 40.874559][ T711] ? vprintk_emit (kernel/printk/printk.c:2471) [ 40.874560][ T711] __might_resched.cold (kernel/sched/core.c:9234) [ 40.874565][ T711] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 40.874569][ T711] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 40.874573][ T711] __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)) [ 40.874575][ T711] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 40.874581][ T711] ? 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) [ 40.874584][ T711] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 40.874587][ T711] put_chars (drivers/char/virtio_console.c:1176) [ 40.874590][ T711] ? __send_to_port (drivers/char/virtio_console.c:654) [ 40.874596][ T711] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 40.874603][ T711] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 40.874606][ T711] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 40.874611][ T711] console_emit_next_record (kernel/printk/printk.c:3183) [ 40.874614][ T711] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 40.874616][ T711] ? 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)) [ 40.874619][ T711] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.874622][ T711] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 40.874626][ T711] console_flush_one_record (kernel/printk/printk.c:3268) [ 40.874630][ T711] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 40.874632][ T711] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 40.874637][ T711] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 40.874639][ T711] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 40.874641][ T711] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.874643][ T711] ? 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) [ 40.874647][ T711] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 40.874648][ T711] ? vprintk_emit (kernel/printk/printk.c:2478) [ 40.874651][ T711] vprintk_emit (kernel/printk/printk.c:2479) [ 40.874654][ T711] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 40.874656][ T711] ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6)) [ 40.874661][ T711] _printk (kernel/printk/printk.c:2504) [ 40.874665][ T711] ? snapshot_read.cold (user.c:?) [ 40.874667][ T711] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 40.874669][ T711] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 40.874672][ T711] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 40.874674][ T711] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 40.874677][ T711] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 40.874680][ T711] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 40.874682][ T711] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 40.874685][ T711] ? netdev_notice (net/core/dev.c:13194) [ 40.874688][ T711] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 40.874691][ T711] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 40.874693][ T711] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 40.874696][ T711] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 40.874698][ T711] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 40.874700][ T711] ? register_netdev (net/core/dev.c:11618) [ 40.874702][ T711] ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2)) [ 40.874707][ T711] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 40.874710][ T711] ? __kernel_text_address (kernel/extable.c:79) [ 40.874712][ T711] ? write_profile (profile.c:?) [ 40.874716][ T711] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 40.874722][ T711] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 40.874725][ T711] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 40.874727][ T711] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 40.874728][ T711] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 40.874730][ T711] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 40.874733][ T711] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 40.874735][ T711] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 40.874737][ T711] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 40.874739][ T711] ? kasan_save_stack (mm/kasan/common.c:58) [ 40.874741][ T711] ? kasan_save_stack (mm/kasan/common.c:57) [ 40.874742][ T711] ? kasan_save_track (mm/kasan/common.c:78) [ 40.874744][ T711] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 40.874746][ T711] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 40.874748][ T711] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 40.874751][ T711] ? ___sys_sendmsg (net/socket.c:2758) [ 40.874754][ T711] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 40.874756][ T711] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 40.874759][ T711] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.874760][ T711] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 40.874762][ T711] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.874763][ T711] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.874764][ T711] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 40.874767][ T711] ? __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) [ 40.874768][ T711] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 40.874770][ T711] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 40.874773][ T711] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 40.874774][ T711] ? nla_get_range_signed (lib/nlattr.c:270) [ 40.874779][ T711] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.874781][ T711] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 40.874786][ T711] rtnl_newlink (net/core/rtnetlink.c:4215) [ 40.874791][ T711] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 40.874793][ T711] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 40.874797][ T711] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 40.874799][ T711] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 40.874801][ T711] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 40.874803][ T711] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 40.874806][ T711] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 40.874808][ T711] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 40.874811][ T711] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 40.874813][ T711] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 40.874817][ T711] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 40.874819][ T711] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 40.874822][ T711] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 40.874825][ T711] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 40.874828][ T711] ? netlink_ack (./include/linux/skbuff.h:2718) [ 40.874834][ T711] ? 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)) [ 40.874836][ T711] ? 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)) [ 40.874841][ T711] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 40.874844][ T711] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 40.874847][ T711] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 40.874851][ T711] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 40.874855][ T711] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 40.874858][ T711] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 40.874860][ T711] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 40.874865][ T711] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 40.874868][ T711] ____sys_sendmsg (net/socket.c:2713) [ 40.874870][ T711] ? copy_msghdr_from_user (net/socket.c:2650) [ 40.874872][ T711] ? sock_write_iter (net/socket.c:1269) [ 40.874874][ T711] ? move_addr_to_kernel (net/socket.c:258) [ 40.874881][ T711] ___sys_sendmsg (net/socket.c:2767) [ 40.874883][ T711] ? copy_msghdr_from_user (net/socket.c:2619) [ 40.874899][ T711] __sys_sendmsg (net/socket.c:2799) [ 40.874901][ T711] ? __sys_sendmsg_sock (net/socket.c:2780) [ 40.874907][ T711] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.874910][ T711] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 40.874913][ T711] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 40.874916][ T711] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 40.874918][ T711] RIP: 0033:0x7fb883ec354e [ 40.874926][ T711] 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 [ 40.874927][ T711] RSP: 002b:00007ffcdd18c600 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 40.874930][ T711] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fb883ec354e [ 40.874931][ T711] RDX: 0000000000000000 RSI: 00007ffcdd18c6b0 RDI: 0000000000000005 [ 40.874932][ T711] RBP: 00007ffcdd18c610 R08: 0000000000000000 R09: 0000000000000000 [ 40.874933][ T711] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9198bf [ 40.874934][ T711] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcdd18cd80 | [ 53.977291][ T70] softirqs last disabled at (324798): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 53.977293][ T70] Preemption disabled at: | [ 53.977294][ T70] vprintk_emit (kernel/printk/printk.c:2471) | [ 53.977302][ T70] Tainted: [W]=WARN [ 53.977303][ T70] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 53.977304][ T70] Workqueue: netns cleanup_net [ 53.977308][ T70] Call Trace: [ 53.977309][ T70] [ 53.977311][ T70] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 53.977318][ T70] ? vprintk_emit (kernel/printk/printk.c:2471) [ 53.977319][ T70] __might_resched.cold (kernel/sched/core.c:9234) [ 53.977324][ T70] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 53.977328][ 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) [ 53.977333][ 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)) [ 53.977335][ T70] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 53.977341][ 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) [ 53.977344][ T70] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 53.977348][ T70] put_chars (drivers/char/virtio_console.c:1176) [ 53.977351][ T70] ? __send_to_port (drivers/char/virtio_console.c:654) [ 53.977352][ T70] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 53.977355][ T70] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 53.977358][ T70] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 53.977364][ T70] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 53.977368][ T70] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 53.977373][ T70] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 53.977376][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 53.977381][ T70] console_emit_next_record (kernel/printk/printk.c:3183) [ 53.977385][ T70] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 53.977387][ 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)) [ 53.977390][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 53.977392][ T70] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 53.977396][ T70] console_flush_one_record (kernel/printk/printk.c:3268) [ 53.977400][ T70] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 53.977402][ T70] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 53.977408][ T70] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 53.977411][ T70] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 53.977413][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 53.977414][ T70] ? 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) [ 53.977418][ T70] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 53.977420][ T70] ? vprintk_emit (kernel/printk/printk.c:2478) [ 53.977423][ T70] vprintk_emit (kernel/printk/printk.c:2479) [ 53.977426][ T70] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 53.977427][ T70] ? cleanup_net (net/core/net_namespace.c:706) [ 53.977429][ T70] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 53.977431][ T70] ? kthread (kernel/kthread.c:436) [ 53.977433][ T70] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 53.977436][ T70] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 53.977441][ T70] _printk (kernel/printk/printk.c:2504) [ 53.977445][ T70] ? snapshot_read.cold (user.c:?) [ 53.977450][ T70] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 53.977454][ T70] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 53.977458][ T70] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 53.977460][ T70] ? netdev_notice (net/core/dev.c:13194) [ 53.977465][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 53.977467][ T70] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 53.977469][ T70] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 53.977471][ 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) [ 53.977474][ T70] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 53.977478][ T70] dev_set_allmulti (net/core/dev_api.c:315) [ 53.977482][ T70] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 53.977485][ T70] ? unregister_netdevice_many (net/core/dev.c:12589) [ 53.977487][ T70] ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2)) [ 53.977492][ T70] br_dev_delete (net/bridge/br_if.c:387) [ 53.977496][ T70] br_net_exit_rtnl (net/bridge/br.c:414) [ 53.977499][ T70] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 53.977503][ T70] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 53.977507][ T70] ? netns_install (./include/linux/ns_common.h:26) [ 53.977508][ T70] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 53.977512][ T70] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 53.977516][ T70] cleanup_net (net/core/net_namespace.c:706) [ 53.977519][ T70] ? net_passive_dec (./include/linux/llist.h:241) [ 53.977523][ T70] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 53.977525][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 53.977528][ T70] process_one_work (kernel/workqueue.c:3387) [ 53.977535][ T70] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 53.977538][ T70] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 53.977546][ T70] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 53.977550][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 53.977552][ T70] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 53.977555][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 53.977557][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 53.977560][ T70] kthread (kernel/kthread.c:436) [ 53.977561][ T70] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 53.977565][ T70] ? kthread_affine_preferred (kernel/kthread.c:857) [ 53.977568][ T70] ret_from_fork (arch/x86/kernel/process.c:158) [ 53.977570][ T70] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 53.977574][ T70] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 53.977577][ T70] ? kthread_affine_preferred (kernel/kthread.c:857) [ 53.977580][ T70] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 56.153530][ T951] softirqs last disabled at (17868): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 56.153533][ T951] Preemption disabled at: | [ 56.153533][ T951] vprintk_emit (kernel/printk/printk.c:2471) | [ 56.153541][ T951] Tainted: [W]=WARN [ 56.153542][ T951] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 56.153544][ T951] Call Trace: [ 56.153545][ T951] [ 56.153547][ T951] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 56.153553][ T951] ? vprintk_emit (kernel/printk/printk.c:2471) [ 56.153555][ T951] __might_resched.cold (kernel/sched/core.c:9234) [ 56.153559][ T951] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 56.153563][ T951] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 56.153568][ T951] __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)) [ 56.153570][ T951] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 56.153576][ T951] ? 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) [ 56.153579][ T951] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 56.153582][ T951] put_chars (drivers/char/virtio_console.c:1176) [ 56.153585][ T951] ? __send_to_port (drivers/char/virtio_console.c:654) [ 56.153591][ T951] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 56.153598][ T951] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 56.153601][ T951] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 56.153606][ T951] console_emit_next_record (kernel/printk/printk.c:3183) [ 56.153610][ T951] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 56.153612][ T951] ? 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)) [ 56.153615][ T951] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 56.153617][ T951] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 56.153621][ T951] console_flush_one_record (kernel/printk/printk.c:3268) [ 56.153625][ T951] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 56.153627][ T951] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 56.153632][ T951] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 56.153635][ T951] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 56.153637][ T951] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 56.153638][ T951] ? 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) [ 56.153642][ T951] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 56.153644][ T951] ? vprintk_emit (kernel/printk/printk.c:2478) [ 56.153646][ T951] vprintk_emit (kernel/printk/printk.c:2479) [ 56.153650][ T951] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 56.153652][ T951] ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6)) [ 56.153657][ T951] _printk (kernel/printk/printk.c:2504) [ 56.153661][ T951] ? snapshot_read.cold (user.c:?) [ 56.153663][ T951] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 56.153665][ T951] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 56.153668][ T951] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 56.153670][ T951] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 56.153674][ T951] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 56.153676][ T951] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 56.153678][ T951] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 56.153681][ T951] ? netdev_notice (net/core/dev.c:13194) [ 56.153684][ T951] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 56.153687][ T951] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 56.153690][ T951] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 56.153693][ T951] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 56.153695][ T951] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 56.153697][ T951] ? register_netdev (net/core/dev.c:11618) [ 56.153699][ T951] ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2)) [ 56.153704][ T951] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 56.153706][ T951] ? __kernel_text_address (kernel/extable.c:79) [ 56.153708][ T951] ? write_profile (profile.c:?) [ 56.153712][ T951] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 56.153718][ T951] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 56.153721][ T951] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 56.153723][ T951] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 56.153724][ T951] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 56.153726][ T951] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 56.153729][ T951] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 56.153731][ T951] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 56.153733][ T951] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 56.153736][ T951] ? kasan_save_stack (mm/kasan/common.c:58) [ 56.153737][ T951] ? kasan_save_stack (mm/kasan/common.c:57) [ 56.153739][ T951] ? kasan_save_track (mm/kasan/common.c:78) [ 56.153740][ T951] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 56.153742][ T951] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 56.153744][ T951] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 56.153747][ T951] ? ___sys_sendmsg (net/socket.c:2758) [ 56.153751][ T951] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 56.153753][ T951] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 56.153755][ T951] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 56.153757][ T951] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 56.153758][ T951] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 56.153759][ T951] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 56.153761][ T951] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 56.153763][ T951] ? __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) [ 56.153765][ T951] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 56.153766][ T951] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 56.153770][ T951] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 56.153771][ T951] ? nla_get_range_signed (lib/nlattr.c:270) [ 56.153776][ T951] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 56.153778][ T951] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 56.153783][ T951] rtnl_newlink (net/core/rtnetlink.c:4215) [ 56.153788][ T951] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 56.153790][ T951] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 56.153794][ T951] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 56.153796][ T951] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 56.153798][ T951] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 56.153800][ T951] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 56.153803][ T951] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 56.153805][ T951] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 56.153808][ T951] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 56.153810][ T951] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 56.153814][ T951] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 56.153816][ T951] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 56.153819][ T951] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 56.153822][ T951] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 56.153825][ T951] ? netlink_ack (./include/linux/skbuff.h:2718) [ 56.153831][ T951] ? 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)) [ 56.153833][ T951] ? 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)) [ 56.153838][ T951] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 56.153841][ T951] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 56.153844][ T951] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 56.153848][ T951] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 56.153852][ T951] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 56.153855][ T951] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 56.153857][ T951] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 56.153862][ T951] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 56.153865][ T951] ____sys_sendmsg (net/socket.c:2713) [ 56.153867][ T951] ? copy_msghdr_from_user (net/socket.c:2650) [ 56.153869][ T951] ? sock_write_iter (net/socket.c:1269) [ 56.153871][ T951] ? move_addr_to_kernel (net/socket.c:258) [ 56.153878][ T951] ___sys_sendmsg (net/socket.c:2767) [ 56.153881][ T951] ? copy_msghdr_from_user (net/socket.c:2619) [ 56.153896][ T951] __sys_sendmsg (net/socket.c:2799) [ 56.153899][ T951] ? __sys_sendmsg_sock (net/socket.c:2780) [ 56.153905][ T951] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 56.153908][ T951] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 56.153911][ T951] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 56.153913][ T951] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 56.153915][ T951] RIP: 0033:0x7f18a1cac54e [ 56.153919][ T951] 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 [ 56.153921][ T951] RSP: 002b:00007ffe12caf560 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 56.153923][ T951] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f18a1cac54e [ 56.153925][ T951] RDX: 0000000000000000 RSI: 00007ffe12caf610 RDI: 0000000000000005 [ 56.153926][ T951] RBP: 00007ffe12caf570 R08: 0000000000000000 R09: 0000000000000000 [ 56.153927][ T951] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9198ce [ 56.153927][ T951] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe12cafce0 | [ 69.570350][ T70] softirqs last disabled at (493504): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 69.570352][ T70] Preemption disabled at: | [ 69.570353][ T70] vprintk_emit (kernel/printk/printk.c:2471) | [ 69.570361][ T70] Tainted: [W]=WARN [ 69.570362][ T70] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 69.570364][ T70] Workqueue: netns cleanup_net [ 69.570367][ T70] Call Trace: [ 69.570368][ T70] [ 69.570370][ T70] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 69.570376][ T70] ? vprintk_emit (kernel/printk/printk.c:2471) [ 69.570378][ T70] __might_resched.cold (kernel/sched/core.c:9234) [ 69.570382][ T70] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 69.570386][ 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) [ 69.570390][ 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)) [ 69.570392][ T70] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 69.570399][ 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) [ 69.570402][ T70] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 69.570405][ T70] put_chars (drivers/char/virtio_console.c:1176) [ 69.570408][ T70] ? __send_to_port (drivers/char/virtio_console.c:654) [ 69.570409][ T70] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 69.570412][ T70] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 69.570416][ T70] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 69.570421][ T70] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 69.570425][ T70] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 69.570430][ T70] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 69.570433][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 69.570438][ T70] console_emit_next_record (kernel/printk/printk.c:3183) [ 69.570442][ T70] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 69.570444][ 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)) [ 69.570447][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 69.570449][ T70] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 69.570453][ T70] console_flush_one_record (kernel/printk/printk.c:3268) [ 69.570457][ T70] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 69.570459][ T70] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 69.570464][ T70] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 69.570467][ T70] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 69.570469][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 69.570470][ T70] ? 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) [ 69.570474][ T70] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 69.570476][ T70] ? vprintk_emit (kernel/printk/printk.c:2478) [ 69.570479][ T70] vprintk_emit (kernel/printk/printk.c:2479) [ 69.570482][ T70] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 69.570483][ T70] ? cleanup_net (net/core/net_namespace.c:706) [ 69.570485][ T70] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 69.570487][ T70] ? kthread (kernel/kthread.c:436) [ 69.570489][ T70] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 69.570492][ T70] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 69.570497][ T70] _printk (kernel/printk/printk.c:2504) [ 69.570501][ T70] ? snapshot_read.cold (user.c:?) [ 69.570505][ T70] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 69.570509][ T70] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 69.570512][ T70] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 69.570515][ T70] ? netdev_notice (net/core/dev.c:13194) [ 69.570520][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 69.570521][ T70] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 69.570524][ T70] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 69.570526][ 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) [ 69.570528][ T70] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 69.570533][ T70] dev_set_allmulti (net/core/dev_api.c:315) [ 69.570536][ T70] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 69.570540][ T70] ? unregister_netdevice_many (net/core/dev.c:12589) [ 69.570542][ T70] ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2)) [ 69.570547][ T70] br_dev_delete (net/bridge/br_if.c:387) [ 69.570550][ T70] br_net_exit_rtnl (net/bridge/br.c:414) [ 69.570554][ T70] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 69.570557][ T70] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 69.570561][ T70] ? netns_install (./include/linux/ns_common.h:26) [ 69.570563][ T70] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 69.570566][ T70] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 69.570571][ T70] cleanup_net (net/core/net_namespace.c:706) [ 69.570574][ T70] ? net_passive_dec (./include/linux/llist.h:241) [ 69.570577][ T70] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 69.570579][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 69.570583][ T70] process_one_work (kernel/workqueue.c:3387) [ 69.570589][ T70] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 69.570592][ T70] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 69.570600][ T70] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 69.570604][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 69.570606][ T70] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 69.570609][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 69.570612][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 69.570614][ T70] kthread (kernel/kthread.c:436) [ 69.570615][ T70] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 69.570619][ T70] ? kthread_affine_preferred (kernel/kthread.c:857) [ 69.570622][ T70] ret_from_fork (arch/x86/kernel/process.c:158) [ 69.570624][ T70] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 69.570628][ T70] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 69.570631][ T70] ? kthread_affine_preferred (kernel/kthread.c:857) Finger prints: netlink_release:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars