====================================== | [ 12.685868][ T243] softirqs last disabled at (25290): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 12.685872][ T243] Preemption disabled at: | [ 12.685872][ T243] vprintk_emit (kernel/printk/printk.c:2471) | [ 12.685885][ T243] Tainted: [W]=WARN [ 12.685886][ T243] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.685888][ T243] Call Trace: [ 12.685890][ T243] [ 12.685893][ T243] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.685901][ T243] ? vprintk_emit (kernel/printk/printk.c:2471) [ 12.685903][ T243] __might_resched.cold (kernel/sched/core.c:9234) [ 12.685909][ T243] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.685915][ 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) [ 12.685922][ 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)) [ 12.685925][ T243] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.685940][ 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) [ 12.685944][ T243] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.685950][ T243] put_chars (drivers/char/virtio_console.c:1176) [ 12.685954][ T243] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.685965][ T243] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.685977][ T243] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.685983][ T243] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.685990][ T243] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.685996][ T243] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.685999][ 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)) [ 12.686004][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.686008][ T243] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.686015][ T243] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.686022][ T243] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.686025][ T243] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.686034][ T243] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.686039][ T243] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.686042][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.686044][ 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) [ 12.686051][ T243] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.686053][ T243] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.686058][ T243] vprintk_emit (kernel/printk/printk.c:2479) [ 12.686063][ T243] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.686067][ T243] ? save_trace (kernel/locking/lockdep.c:589) [ 12.686075][ T243] _printk (kernel/printk/printk.c:2504) [ 12.686080][ T243] ? snapshot_read.cold (user.c:?) [ 12.686086][ T243] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 12.686089][ T243] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 12.686094][ T243] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 12.686099][ T243] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 12.686103][ T243] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 12.686107][ T243] ? netdev_notice (net/core/dev.c:13194) [ 12.686111][ T243] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.686116][ T243] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.686120][ T243] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 12.686126][ T243] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 12.686130][ T243] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 12.686133][ T243] ? register_netdev (net/core/dev.c:11618) [ 12.686135][ 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)) [ 12.686143][ T243] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 12.686147][ T243] ? __kernel_text_address (kernel/extable.c:79) [ 12.686151][ T243] ? write_profile (profile.c:?) [ 12.686157][ T243] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 12.686165][ T243] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 12.686171][ T243] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 12.686175][ T243] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 12.686177][ T243] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 12.686181][ T243] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 12.686185][ T243] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.686189][ T243] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.686192][ T243] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.686196][ T243] ? kasan_save_stack (mm/kasan/common.c:58) [ 12.686198][ T243] ? kasan_save_stack (mm/kasan/common.c:57) [ 12.686201][ T243] ? kasan_save_track (mm/kasan/common.c:78) [ 12.686203][ T243] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 12.686207][ T243] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.686210][ T243] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 12.686214][ T243] ? ___sys_sendmsg (net/socket.c:2758) [ 12.686220][ T243] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.686223][ T243] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 12.686228][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.686231][ T243] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.686233][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.686235][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.686238][ T243] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 12.686242][ 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) [ 12.686246][ T243] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 12.686249][ T243] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 12.686255][ T243] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 12.686257][ T243] ? nla_get_range_signed (lib/nlattr.c:270) [ 12.686265][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.686269][ T243] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 12.686278][ T243] rtnl_newlink (net/core/rtnetlink.c:4215) [ 12.686288][ T243] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.686291][ T243] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.686299][ T243] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.686302][ T243] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.686305][ T243] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.686308][ T243] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.686315][ T243] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.686318][ T243] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 12.686324][ T243] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 12.686326][ T243] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.686334][ T243] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.686337][ T243] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.686343][ T243] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 12.686347][ T243] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 12.686352][ T243] ? netlink_ack (./include/linux/skbuff.h:2718) [ 12.686363][ 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)) [ 12.686366][ 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)) [ 12.686374][ T243] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 12.686381][ T243] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 12.686385][ T243] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.686395][ T243] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 12.686402][ T243] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 12.686409][ T243] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.686411][ T243] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 12.686420][ T243] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 12.686425][ T243] ____sys_sendmsg (net/socket.c:2713) [ 12.686428][ T243] ? copy_msghdr_from_user (net/socket.c:2650) [ 12.686432][ T243] ? sock_write_iter (net/socket.c:1269) [ 12.686434][ T243] ? move_addr_to_kernel (net/socket.c:258) [ 12.686448][ T243] ___sys_sendmsg (net/socket.c:2767) [ 12.686453][ T243] ? copy_msghdr_from_user (net/socket.c:2619) [ 12.686482][ T243] __sys_sendmsg (net/socket.c:2799) [ 12.686487][ T243] ? __sys_sendmsg_sock (net/socket.c:2780) [ 12.686498][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.686503][ T243] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.686507][ T243] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.686512][ T243] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.686515][ T243] RIP: 0033:0x7fd4fb67954e [ 12.686520][ 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 [ 12.686523][ T243] RSP: 002b:00007ffff04e3d10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 12.686527][ T243] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fd4fb67954e [ 12.686529][ T243] RDX: 0000000000000000 RSI: 00007ffff04e3dc0 RDI: 0000000000000005 [ 12.686530][ T243] RBP: 00007ffff04e3d20 R08: 0000000000000000 R09: 0000000000000000 [ 12.686531][ T243] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9184b4 [ 12.686533][ T243] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffff04e4490 | [ 26.231232][ T71] softirqs last disabled at (14630): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 26.231235][ T71] Preemption disabled at: | [ 26.231235][ T71] vprintk_emit (kernel/printk/printk.c:2471) | [ 26.231244][ T71] Tainted: [W]=WARN [ 26.231245][ T71] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 26.231247][ T71] Workqueue: netns cleanup_net [ 26.231251][ T71] Call Trace: [ 26.231253][ T71] [ 26.231254][ T71] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 26.231261][ T71] ? vprintk_emit (kernel/printk/printk.c:2471) [ 26.231262][ T71] __might_resched.cold (kernel/sched/core.c:9234) [ 26.231267][ T71] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 26.231271][ T71] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 26.231276][ T71] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 26.231278][ T71] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 26.231285][ T71] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 26.231288][ T71] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 26.231292][ T71] put_chars (drivers/char/virtio_console.c:1176) [ 26.231294][ T71] ? __send_to_port (drivers/char/virtio_console.c:654) [ 26.231298][ T71] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 26.231303][ T71] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 26.231307][ T71] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.231313][ T71] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 26.231317][ T71] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.231322][ T71] console_emit_next_record (kernel/printk/printk.c:3183) [ 26.231327][ T71] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 26.231328][ T71] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 26.231332][ T71] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.231334][ T71] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.231338][ T71] console_flush_one_record (kernel/printk/printk.c:3268) [ 26.231343][ T71] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 26.231345][ T71] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.231351][ T71] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 26.231354][ T71] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 26.231356][ T71] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.231358][ T71] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 26.231362][ T71] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 26.231364][ T71] ? vprintk_emit (kernel/printk/printk.c:2478) [ 26.231367][ T71] vprintk_emit (kernel/printk/printk.c:2479) [ 26.231370][ T71] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 26.231372][ T71] ? cleanup_net (net/core/net_namespace.c:706) [ 26.231374][ T71] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 26.231375][ T71] ? kthread (kernel/kthread.c:436) [ 26.231378][ T71] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 26.231381][ T71] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 26.231386][ T71] _printk (kernel/printk/printk.c:2504) [ 26.231393][ T71] ? snapshot_read.cold (user.c:?) [ 26.231397][ T71] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 26.231401][ T71] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 26.231406][ T71] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 26.231409][ T71] ? netdev_notice (net/core/dev.c:13194) [ 26.231413][ T71] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.231415][ T71] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 26.231418][ T71] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 26.231420][ T71] ? 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) [ 26.231423][ T71] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 26.231427][ T71] dev_set_allmulti (net/core/dev_api.c:315) [ 26.231431][ T71] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 26.231435][ T71] ? unregister_netdevice_many (net/core/dev.c:12589) [ 26.231437][ T71] ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2)) [ 26.231442][ T71] br_dev_delete (net/bridge/br_if.c:387) [ 26.231446][ T71] br_net_exit_rtnl (net/bridge/br.c:414) [ 26.231450][ T71] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 26.231454][ T71] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 26.231457][ T71] ? netns_install (./include/linux/ns_common.h:26) [ 26.231459][ T71] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 26.231462][ T71] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 26.231467][ T71] cleanup_net (net/core/net_namespace.c:706) [ 26.231471][ T71] ? net_passive_dec (./include/linux/llist.h:241) [ 26.231475][ T71] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.231477][ T71] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.231480][ T71] process_one_work (kernel/workqueue.c:3387) [ 26.231487][ T71] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 26.231491][ T71] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.231499][ T71] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 26.231503][ T71] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 26.231505][ T71] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 26.231509][ T71] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 26.231512][ T71] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 26.231514][ T71] kthread (kernel/kthread.c:436) [ 26.231516][ T71] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 26.231519][ T71] ? kthread_affine_preferred (kernel/kthread.c:857) [ 26.231522][ T71] ret_from_fork (arch/x86/kernel/process.c:158) [ 26.231525][ T71] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 26.231529][ T71] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 26.231532][ T71] ? kthread_affine_preferred (kernel/kthread.c:857) [ 26.231535][ T71] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 28.729206][ T473] softirqs last disabled at (19018): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 28.729209][ T473] Preemption disabled at: | [ 28.729209][ T473] vprintk_emit (kernel/printk/printk.c:2471) | [ 28.729218][ T473] Tainted: [W]=WARN [ 28.729219][ T473] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 28.729221][ T473] Call Trace: [ 28.729222][ T473] [ 28.729224][ T473] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 28.729230][ T473] ? vprintk_emit (kernel/printk/printk.c:2471) [ 28.729232][ T473] __might_resched.cold (kernel/sched/core.c:9234) [ 28.729236][ T473] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 28.729240][ T473] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 28.729245][ T473] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 28.729246][ T473] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 28.729253][ T473] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 28.729255][ T473] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 28.729259][ T473] put_chars (drivers/char/virtio_console.c:1176) [ 28.729262][ T473] ? __send_to_port (drivers/char/virtio_console.c:654) [ 28.729268][ T473] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 28.729275][ T473] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 28.729280][ T473] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.729287][ T473] console_emit_next_record (kernel/printk/printk.c:3183) [ 28.729293][ T473] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 28.729295][ T473] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 28.729299][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.729302][ T473] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.729306][ T473] console_flush_one_record (kernel/printk/printk.c:3268) [ 28.729311][ T473] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 28.729313][ T473] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.729318][ T473] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 28.729321][ T473] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 28.729322][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.729324][ T473] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 28.729328][ T473] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 28.729330][ T473] ? vprintk_emit (kernel/printk/printk.c:2478) [ 28.729332][ T473] vprintk_emit (kernel/printk/printk.c:2479) [ 28.729335][ T473] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 28.729338][ T473] ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6)) [ 28.729343][ T473] _printk (kernel/printk/printk.c:2504) [ 28.729347][ T473] ? snapshot_read.cold (user.c:?) [ 28.729349][ T473] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 28.729351][ T473] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 28.729354][ T473] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 28.729356][ T473] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 28.729360][ T473] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 28.729363][ T473] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 28.729365][ T473] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 28.729368][ T473] ? netdev_notice (net/core/dev.c:13194) [ 28.729371][ T473] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.729374][ T473] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 28.729377][ T473] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 28.729380][ T473] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 28.729382][ T473] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 28.729384][ T473] ? register_netdev (net/core/dev.c:11618) [ 28.729386][ T473] ? 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)) [ 28.729394][ T473] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 28.729397][ T473] ? __kernel_text_address (kernel/extable.c:79) [ 28.729400][ T473] ? write_profile (profile.c:?) [ 28.729404][ T473] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 28.729410][ T473] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 28.729413][ T473] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 28.729415][ T473] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 28.729417][ T473] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 28.729419][ T473] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 28.729422][ T473] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 28.729424][ T473] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 28.729426][ T473] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 28.729428][ T473] ? kasan_save_stack (mm/kasan/common.c:58) [ 28.729430][ T473] ? kasan_save_stack (mm/kasan/common.c:57) [ 28.729431][ T473] ? kasan_save_track (mm/kasan/common.c:78) [ 28.729433][ T473] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 28.729435][ T473] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.729437][ T473] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 28.729440][ T473] ? ___sys_sendmsg (net/socket.c:2758) [ 28.729444][ T473] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.729446][ T473] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 28.729449][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.729450][ T473] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.729452][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.729453][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.729455][ T473] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 28.729457][ T473] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 28.729458][ T473] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 28.729460][ T473] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 28.729464][ T473] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 28.729465][ T473] ? nla_get_range_signed (lib/nlattr.c:270) [ 28.729470][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.729472][ T473] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 28.729477][ T473] rtnl_newlink (net/core/rtnetlink.c:4215) [ 28.729482][ T473] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 28.729484][ T473] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.729488][ T473] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.729490][ T473] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.729492][ T473] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 28.729494][ T473] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 28.729498][ T473] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 28.729500][ T473] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 28.729503][ T473] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 28.729504][ T473] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.729508][ T473] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.729510][ T473] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.729514][ T473] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 28.729517][ T473] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 28.729520][ T473] ? netlink_ack (./include/linux/skbuff.h:2718) [ 28.729526][ T473] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 28.729528][ T473] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 28.729533][ T473] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 28.729537][ T473] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 28.729539][ T473] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.729543][ T473] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 28.729547][ T473] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 28.729551][ T473] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 28.729553][ T473] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 28.729558][ T473] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 28.729561][ T473] ____sys_sendmsg (net/socket.c:2713) [ 28.729563][ T473] ? copy_msghdr_from_user (net/socket.c:2650) [ 28.729566][ T473] ? sock_write_iter (net/socket.c:1269) [ 28.729567][ T473] ? move_addr_to_kernel (net/socket.c:258) [ 28.729574][ T473] ___sys_sendmsg (net/socket.c:2767) [ 28.729577][ T473] ? copy_msghdr_from_user (net/socket.c:2619) [ 28.729593][ T473] __sys_sendmsg (net/socket.c:2799) [ 28.729596][ T473] ? __sys_sendmsg_sock (net/socket.c:2780) [ 28.729602][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.729605][ T473] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 28.729608][ T473] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 28.729611][ T473] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 28.729613][ T473] RIP: 0033:0x7f87f348554e [ 28.729618][ T473] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 28.729619][ T473] RSP: 002b:00007fffb5dddf30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 28.729622][ T473] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f87f348554e [ 28.729623][ T473] RDX: 0000000000000000 RSI: 00007fffb5dddfe0 RDI: 0000000000000005 [ 28.729624][ T473] RBP: 00007fffb5dddf40 R08: 0000000000000000 R09: 0000000000000000 [ 28.729625][ T473] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9184c4 [ 28.729626][ T473] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffb5dde6b0 | [ 29.778058][ T497] softirqs last disabled at (23914): addrconf_permanent_addr (net/ipv6/addrconf.c:3651) | [ 29.778061][ T497] Preemption disabled at: | [ 29.778061][ T497] vprintk_emit (kernel/printk/printk.c:2471) | [ 29.778070][ T497] Tainted: [W]=WARN [ 29.778071][ T497] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 29.778072][ T497] Call Trace: [ 29.778074][ T497] [ 29.778075][ T497] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 29.778081][ T497] ? vprintk_emit (kernel/printk/printk.c:2471) [ 29.778083][ T497] __might_resched.cold (kernel/sched/core.c:9234) [ 29.778087][ T497] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 29.778091][ T497] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 29.778095][ T497] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 29.778097][ T497] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 29.778104][ T497] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 29.778106][ T497] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 29.778110][ T497] put_chars (drivers/char/virtio_console.c:1176) [ 29.778112][ T497] ? __send_to_port (drivers/char/virtio_console.c:654) [ 29.778114][ T497] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 29.778117][ T497] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 29.778127][ T497] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 29.778134][ T497] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 29.778137][ T497] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.778139][ T497] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 29.778143][ T497] console_emit_next_record (kernel/printk/printk.c:3183) [ 29.778147][ T497] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 29.778149][ T497] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 29.778152][ T497] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.778153][ T497] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 29.778157][ T497] console_flush_one_record (kernel/printk/printk.c:3268) [ 29.778162][ T497] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 29.778163][ T497] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.778169][ T497] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 29.778171][ T497] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 29.778173][ T497] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.778175][ T497] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 29.778179][ T497] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 29.778180][ T497] ? vprintk_emit (kernel/printk/printk.c:2478) [ 29.778183][ T497] vprintk_emit (kernel/printk/printk.c:2479) [ 29.778186][ T497] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 29.778188][ T497] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 29.778191][ T497] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 29.778194][ T497] _printk (kernel/printk/printk.c:2504) [ 29.778198][ T497] ? snapshot_read.cold (user.c:?) [ 29.778201][ T497] ? br_multicast_flood (??:?) [ 29.778204][ T497] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 29.778206][ T497] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 29.778207][ T497] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 29.778211][ T497] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 29.778215][ T497] br_init_port (net/bridge/br_stp_if.c:39) [ 29.778218][ T497] new_nbp (net/bridge/br_if.c:449) [ 29.778221][ T497] br_add_if (net/bridge/br_if.c:592) [ 29.778224][ T497] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 29.778228][ T497] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 29.778235][ T497] do_set_master (net/core/rtnetlink.c:3071) [ 29.778236][ T497] ? netif_change_flags (net/core/dev.c:9882) [ 29.778240][ T497] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 29.778244][ T497] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 29.778247][ T497] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 29.778248][ T497] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 29.778251][ T497] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 29.778254][ T497] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 29.778256][ T497] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 29.778258][ T497] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 29.778260][ T497] ? kasan_save_stack (mm/kasan/common.c:58) [ 29.778263][ T497] ? kasan_save_stack (mm/kasan/common.c:57) [ 29.778264][ T497] ? kasan_save_track (mm/kasan/common.c:78) [ 29.778265][ T497] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 29.778268][ T497] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.778270][ T497] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 29.778273][ T497] ? ___sys_sendmsg (net/socket.c:2758) [ 29.778276][ T497] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 29.778278][ T497] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 29.778281][ T497] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.778282][ T497] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 29.778284][ T497] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.778285][ T497] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.778287][ T497] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 29.778289][ T497] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 29.778291][ T497] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 29.778293][ T497] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 29.778297][ T497] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 29.778298][ T497] ? nla_get_range_signed (lib/nlattr.c:270) [ 29.778302][ T497] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.778304][ T497] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 29.778310][ T497] rtnl_newlink (net/core/rtnetlink.c:4215) [ 29.778315][ T497] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 29.778317][ T497] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.778321][ T497] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 29.778323][ T497] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 29.778325][ T497] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 29.778327][ T497] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 29.778331][ T497] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 29.778333][ T497] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 29.778336][ T497] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 29.778337][ T497] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 29.778341][ T497] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 29.778343][ T497] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 29.778347][ T497] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 29.778350][ T497] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 29.778353][ T497] ? netlink_ack (./include/linux/skbuff.h:2718) [ 29.778359][ T497] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 29.778361][ T497] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 29.778366][ T497] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 29.778369][ T497] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 29.778372][ T497] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 29.778376][ T497] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 29.778380][ T497] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 29.778384][ T497] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 29.778386][ T497] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 29.778391][ T497] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 29.778394][ T497] ____sys_sendmsg (net/socket.c:2713) [ 29.778396][ T497] ? copy_msghdr_from_user (net/socket.c:2650) [ 29.778399][ T497] ? sock_write_iter (net/socket.c:1269) [ 29.778400][ T497] ? move_addr_to_kernel (net/socket.c:258) [ 29.778407][ T497] ___sys_sendmsg (net/socket.c:2767) [ 29.778410][ T497] ? copy_msghdr_from_user (net/socket.c:2619) [ 29.778426][ T497] __sys_sendmsg (net/socket.c:2799) [ 29.778429][ T497] ? __sys_sendmsg_sock (net/socket.c:2780) [ 29.778435][ T497] ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79) [ 29.778438][ T497] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 29.778441][ T497] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 29.778444][ T497] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 29.778446][ T497] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 29.778449][ T497] RIP: 0033:0x7f2bef5b254e [ 29.778452][ T497] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 29.778454][ T497] RSP: 002b:00007ffeef20f440 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 29.778457][ T497] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f2bef5b254e [ 29.778458][ T497] RDX: 0000000000000000 RSI: 00007ffeef20f4f0 RDI: 0000000000000005 [ 29.778459][ T497] RBP: 00007ffeef20f450 R08: 0000000000000000 R09: 0000000000000000 [ 29.778460][ T497] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9184c6 [ 29.778460][ T497] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffeef20fbc0 | [ 42.541808][ T71] softirqs last disabled at (190751): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 42.541810][ T71] Preemption disabled at: | [ 42.541811][ T71] vprintk_emit (kernel/printk/printk.c:2471) | [ 42.541820][ T71] Tainted: [W]=WARN [ 42.541820][ T71] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 42.541822][ T71] Workqueue: netns cleanup_net [ 42.541826][ T71] Call Trace: [ 42.541827][ T71] [ 42.541829][ T71] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 42.541835][ T71] ? vprintk_emit (kernel/printk/printk.c:2471) [ 42.541837][ T71] __might_resched.cold (kernel/sched/core.c:9234) [ 42.541842][ T71] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 42.541846][ T71] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 42.541850][ T71] __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)) [ 42.541852][ T71] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 42.541859][ T71] ? 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) [ 42.541862][ T71] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 42.541866][ T71] put_chars (drivers/char/virtio_console.c:1176) [ 42.541869][ T71] ? __send_to_port (drivers/char/virtio_console.c:654) [ 42.541870][ T71] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 42.541874][ T71] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 42.541877][ T71] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 42.541882][ T71] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 42.541886][ T71] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 42.541891][ T71] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 42.541895][ T71] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.541900][ T71] console_emit_next_record (kernel/printk/printk.c:3183) [ 42.541904][ T71] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 42.541906][ T71] ? 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)) [ 42.541909][ T71] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.541911][ T71] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 42.541915][ T71] console_flush_one_record (kernel/printk/printk.c:3268) [ 42.541920][ T71] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 42.541922][ T71] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 42.541927][ T71] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 42.541930][ T71] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 42.541932][ T71] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.541934][ T71] ? 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) [ 42.541938][ T71] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 42.541940][ T71] ? vprintk_emit (kernel/printk/printk.c:2478) [ 42.541942][ T71] vprintk_emit (kernel/printk/printk.c:2479) [ 42.541946][ T71] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 42.541947][ T71] ? cleanup_net (net/core/net_namespace.c:706) [ 42.541949][ T71] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 42.541951][ T71] ? kthread (kernel/kthread.c:436) [ 42.541953][ T71] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 42.541956][ T71] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 42.541961][ T71] _printk (kernel/printk/printk.c:2504) [ 42.541965][ T71] ? snapshot_read.cold (user.c:?) [ 42.541969][ T71] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 42.541973][ T71] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 42.541977][ T71] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 42.541980][ T71] ? netdev_notice (net/core/dev.c:13194) [ 42.541985][ T71] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.541986][ T71] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 42.541989][ T71] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 42.541991][ T71] ? 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) [ 42.541993][ T71] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 42.541998][ T71] dev_set_allmulti (net/core/dev_api.c:315) [ 42.542001][ T71] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 42.542005][ T71] ? unregister_netdevice_many (net/core/dev.c:12589) [ 42.542007][ T71] ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2)) [ 42.542012][ T71] br_dev_delete (net/bridge/br_if.c:387) [ 42.542016][ T71] br_net_exit_rtnl (net/bridge/br.c:414) [ 42.542019][ T71] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 42.542029][ T71] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 42.542033][ T71] ? netns_install (./include/linux/ns_common.h:26) [ 42.542035][ T71] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 42.542038][ T71] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 42.542043][ T71] cleanup_net (net/core/net_namespace.c:706) [ 42.542046][ T71] ? net_passive_dec (./include/linux/llist.h:241) [ 42.542050][ T71] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 42.542052][ T71] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.542055][ T71] process_one_work (kernel/workqueue.c:3387) [ 42.542062][ T71] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 42.542066][ T71] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 42.542074][ T71] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 42.542078][ T71] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 42.542080][ T71] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 42.542083][ T71] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 42.542086][ T71] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 42.542088][ T71] kthread (kernel/kthread.c:436) [ 42.542090][ T71] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 42.542093][ T71] ? kthread_affine_preferred (kernel/kthread.c:857) [ 42.542096][ T71] ret_from_fork (arch/x86/kernel/process.c:158) [ 42.542099][ T71] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 42.542103][ T71] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 42.542106][ T71] ? kthread_affine_preferred (kernel/kthread.c:857) [ 42.542109][ T71] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 45.158985][ T712] softirqs last disabled at (18710): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 45.158988][ T712] Preemption disabled at: | [ 45.158989][ T712] vprintk_emit (kernel/printk/printk.c:2471) | [ 45.158997][ T712] Tainted: [W]=WARN [ 45.158998][ T712] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 45.159000][ T712] Call Trace: [ 45.159001][ T712] [ 45.159003][ T712] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 45.159009][ T712] ? vprintk_emit (kernel/printk/printk.c:2471) [ 45.159011][ T712] __might_resched.cold (kernel/sched/core.c:9234) [ 45.159015][ T712] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 45.159020][ T712] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 45.159024][ T712] __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)) [ 45.159026][ T712] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 45.159037][ T712] ? 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) [ 45.159039][ T712] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 45.159043][ T712] put_chars (drivers/char/virtio_console.c:1176) [ 45.159046][ T712] ? __send_to_port (drivers/char/virtio_console.c:654) [ 45.159052][ T712] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 45.159060][ T712] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 45.159063][ T712] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 45.159067][ T712] console_emit_next_record (kernel/printk/printk.c:3183) [ 45.159071][ T712] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 45.159073][ T712] ? 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)) [ 45.159076][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 45.159079][ T712] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 45.159083][ T712] console_flush_one_record (kernel/printk/printk.c:3268) [ 45.159087][ T712] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 45.159089][ T712] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 45.159094][ T712] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 45.159097][ T712] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 45.159099][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 45.159100][ T712] ? 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) [ 45.159104][ T712] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 45.159106][ T712] ? vprintk_emit (kernel/printk/printk.c:2478) [ 45.159109][ T712] vprintk_emit (kernel/printk/printk.c:2479) [ 45.159112][ T712] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 45.159114][ T712] ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6)) [ 45.159119][ T712] _printk (kernel/printk/printk.c:2504) [ 45.159123][ T712] ? snapshot_read.cold (user.c:?) [ 45.159125][ T712] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 45.159127][ T712] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 45.159130][ T712] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 45.159132][ T712] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 45.159136][ T712] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 45.159139][ T712] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 45.159141][ T712] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 45.159144][ T712] ? netdev_notice (net/core/dev.c:13194) [ 45.159146][ T712] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 45.159149][ T712] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 45.159152][ T712] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 45.159155][ T712] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 45.159157][ T712] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 45.159160][ T712] ? register_netdev (net/core/dev.c:11618) [ 45.159161][ T712] ? 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)) [ 45.159166][ T712] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 45.159169][ T712] ? __kernel_text_address (kernel/extable.c:79) [ 45.159171][ T712] ? write_profile (profile.c:?) [ 45.159175][ T712] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 45.159181][ T712] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 45.159184][ T712] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 45.159186][ T712] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 45.159187][ T712] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 45.159189][ T712] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 45.159193][ T712] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 45.159195][ T712] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 45.159197][ T712] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 45.159199][ T712] ? kasan_save_stack (mm/kasan/common.c:58) [ 45.159201][ T712] ? kasan_save_stack (mm/kasan/common.c:57) [ 45.159202][ T712] ? kasan_save_track (mm/kasan/common.c:78) [ 45.159203][ T712] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 45.159205][ T712] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 45.159207][ T712] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 45.159210][ T712] ? ___sys_sendmsg (net/socket.c:2758) [ 45.159214][ T712] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 45.159216][ T712] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 45.159218][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 45.159220][ T712] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 45.159221][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 45.159223][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 45.159224][ T712] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 45.159226][ T712] ? __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) [ 45.159228][ T712] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 45.159230][ T712] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 45.159233][ T712] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 45.159234][ T712] ? nla_get_range_signed (lib/nlattr.c:270) [ 45.159239][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 45.159241][ T712] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 45.159247][ T712] rtnl_newlink (net/core/rtnetlink.c:4215) [ 45.159252][ T712] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 45.159254][ T712] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 45.159258][ T712] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 45.159260][ T712] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 45.159262][ T712] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 45.159264][ T712] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 45.159267][ T712] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 45.159269][ T712] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 45.159273][ T712] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 45.159274][ T712] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 45.159278][ T712] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 45.159280][ T712] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 45.159284][ T712] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 45.159287][ T712] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 45.159289][ T712] ? netlink_ack (./include/linux/skbuff.h:2718) [ 45.159296][ T712] ? 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)) [ 45.159298][ T712] ? 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)) [ 45.159302][ T712] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 45.159306][ T712] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 45.159309][ T712] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 45.159313][ T712] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 45.159317][ T712] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 45.159321][ T712] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 45.159322][ T712] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 45.159328][ T712] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 45.159330][ T712] ____sys_sendmsg (net/socket.c:2713) [ 45.159333][ T712] ? copy_msghdr_from_user (net/socket.c:2650) [ 45.159335][ T712] ? sock_write_iter (net/socket.c:1269) [ 45.159337][ T712] ? move_addr_to_kernel (net/socket.c:258) [ 45.159344][ T712] ___sys_sendmsg (net/socket.c:2767) [ 45.159347][ T712] ? copy_msghdr_from_user (net/socket.c:2619) [ 45.159362][ T712] __sys_sendmsg (net/socket.c:2799) [ 45.159365][ T712] ? __sys_sendmsg_sock (net/socket.c:2780) [ 45.159371][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 45.159374][ T712] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 45.159377][ T712] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 45.159380][ T712] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 45.159383][ T712] RIP: 0033:0x7f28a283054e [ 45.159386][ T712] 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 [ 45.159388][ T712] RSP: 002b:00007ffd29e35e30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 45.159394][ T712] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f28a283054e [ 45.159395][ T712] RDX: 0000000000000000 RSI: 00007ffd29e35ee0 RDI: 0000000000000005 [ 45.159396][ T712] RBP: 00007ffd29e35e40 R08: 0000000000000000 R09: 0000000000000000 [ 45.159397][ T712] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9184d5 [ 45.159398][ T712] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd29e365b0 | [ 58.943792][ T71] softirqs last disabled at (356592): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 58.943795][ T71] Preemption disabled at: | [ 58.943796][ T71] vprintk_emit (kernel/printk/printk.c:2471) | [ 58.943808][ T71] Tainted: [W]=WARN [ 58.943809][ T71] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 58.943811][ T71] Workqueue: netns cleanup_net [ 58.943816][ T71] Call Trace: [ 58.943818][ T71] [ 58.943821][ T71] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 58.943829][ T71] ? vprintk_emit (kernel/printk/printk.c:2471) [ 58.943832][ T71] __might_resched.cold (kernel/sched/core.c:9234) [ 58.943838][ T71] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 58.943844][ T71] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 58.943851][ T71] __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)) [ 58.943854][ T71] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 58.943864][ T71] ? 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) [ 58.943868][ T71] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 58.943874][ T71] put_chars (drivers/char/virtio_console.c:1176) [ 58.943878][ T71] ? __send_to_port (drivers/char/virtio_console.c:654) [ 58.943880][ T71] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 58.943886][ T71] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 58.943890][ T71] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 58.943899][ T71] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 58.943904][ T71] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 58.943913][ T71] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 58.943919][ T71] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 58.943928][ T71] console_emit_next_record (kernel/printk/printk.c:3183) [ 58.943935][ T71] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 58.943937][ T71] ? 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)) [ 58.943943][ T71] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 58.943946][ T71] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 58.943953][ T71] console_flush_one_record (kernel/printk/printk.c:3268) [ 58.943961][ T71] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 58.943963][ T71] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 58.943974][ T71] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 58.943978][ T71] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 58.943981][ T71] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 58.943984][ T71] ? 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) [ 58.943991][ T71] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 58.943994][ T71] ? vprintk_emit (kernel/printk/printk.c:2478) [ 58.943999][ T71] vprintk_emit (kernel/printk/printk.c:2479) [ 58.944005][ T71] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 58.944007][ T71] ? cleanup_net (net/core/net_namespace.c:706) [ 58.944010][ T71] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 58.944012][ T71] ? kthread (kernel/kthread.c:436) [ 58.944015][ T71] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 58.944019][ T71] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 58.944027][ T71] _printk (kernel/printk/printk.c:2504) [ 58.944033][ T71] ? snapshot_read.cold (user.c:?) [ 58.944040][ T71] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 58.944046][ T71] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 58.944053][ T71] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 58.944057][ T71] ? netdev_notice (net/core/dev.c:13194) [ 58.944065][ T71] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 58.944075][ T71] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 58.944079][ T71] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 58.944083][ T71] ? 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) [ 58.944087][ T71] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 58.944094][ T71] dev_set_allmulti (net/core/dev_api.c:315) [ 58.944100][ T71] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 58.944105][ T71] ? unregister_netdevice_many (net/core/dev.c:12589) [ 58.944107][ T71] ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2)) [ 58.944115][ T71] br_dev_delete (net/bridge/br_if.c:387) [ 58.944122][ T71] br_net_exit_rtnl (net/bridge/br.c:414) [ 58.944127][ T71] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 58.944133][ T71] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 58.944138][ T71] ? netns_install (./include/linux/ns_common.h:26) [ 58.944141][ T71] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 58.944146][ T71] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 58.944154][ T71] cleanup_net (net/core/net_namespace.c:706) [ 58.944159][ T71] ? net_passive_dec (./include/linux/llist.h:241) [ 58.944166][ T71] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 58.944169][ T71] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 58.944175][ T71] process_one_work (kernel/workqueue.c:3387) [ 58.944188][ T71] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 58.944193][ T71] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 58.944207][ T71] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 58.944215][ T71] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 58.944218][ T71] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 58.944222][ T71] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 58.944227][ T71] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 58.944231][ T71] kthread (kernel/kthread.c:436) [ 58.944234][ T71] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 58.944239][ T71] ? kthread_affine_preferred (kernel/kthread.c:857) [ 58.944244][ T71] ret_from_fork (arch/x86/kernel/process.c:158) [ 58.944248][ T71] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 58.944254][ T71] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 58.944259][ T71] ? kthread_affine_preferred (kernel/kthread.c:857) [ 58.944264][ T71] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 61.859071][ T954] softirqs last disabled at (28486): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 61.859074][ T954] Preemption disabled at: | [ 61.859074][ T954] vprintk_emit (kernel/printk/printk.c:2471) | [ 61.859087][ T954] Tainted: [W]=WARN [ 61.859088][ T954] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 61.859090][ T954] Call Trace: [ 61.859092][ T954] [ 61.859093][ T954] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 61.859099][ T954] ? vprintk_emit (kernel/printk/printk.c:2471) [ 61.859101][ T954] __might_resched.cold (kernel/sched/core.c:9234) [ 61.859106][ T954] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 61.859110][ T954] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 61.859114][ T954] __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)) [ 61.859116][ T954] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 61.859123][ T954] ? 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) [ 61.859125][ T954] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 61.859129][ T954] put_chars (drivers/char/virtio_console.c:1176) [ 61.859132][ T954] ? __send_to_port (drivers/char/virtio_console.c:654) [ 61.859138][ T954] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 61.859146][ T954] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 61.859149][ T954] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 61.859153][ T954] console_emit_next_record (kernel/printk/printk.c:3183) [ 61.859157][ T954] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 61.859159][ T954] ? 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)) [ 61.859162][ T954] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 61.859165][ T954] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 61.859169][ T954] console_flush_one_record (kernel/printk/printk.c:3268) [ 61.859173][ T954] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 61.859175][ T954] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 61.859180][ T954] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 61.859183][ T954] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 61.859185][ T954] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 61.859186][ T954] ? 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) [ 61.859190][ T954] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 61.859192][ T954] ? vprintk_emit (kernel/printk/printk.c:2478) [ 61.859194][ T954] vprintk_emit (kernel/printk/printk.c:2479) [ 61.859198][ T954] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 61.859200][ T954] ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6)) [ 61.859205][ T954] _printk (kernel/printk/printk.c:2504) [ 61.859208][ T954] ? snapshot_read.cold (user.c:?) [ 61.859210][ T954] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 61.859212][ T954] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 61.859215][ T954] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 61.859217][ T954] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 61.859221][ T954] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 61.859224][ T954] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 61.859226][ T954] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 61.859229][ T954] ? netdev_notice (net/core/dev.c:13194) [ 61.859233][ T954] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 61.859236][ T954] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 61.859238][ T954] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 61.859242][ T954] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 61.859244][ T954] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 61.859246][ T954] ? register_netdev (net/core/dev.c:11618) [ 61.859247][ T954] ? 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)) [ 61.859252][ T954] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 61.859255][ T954] ? __kernel_text_address (kernel/extable.c:79) [ 61.859257][ T954] ? write_profile (profile.c:?) [ 61.859261][ T954] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 61.859267][ T954] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 61.859270][ T954] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 61.859272][ T954] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 61.859274][ T954] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 61.859276][ T954] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 61.859279][ T954] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 61.859281][ T954] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 61.859283][ T954] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 61.859285][ T954] ? kasan_save_stack (mm/kasan/common.c:58) [ 61.859287][ T954] ? kasan_save_stack (mm/kasan/common.c:57) [ 61.859288][ T954] ? kasan_save_track (mm/kasan/common.c:78) [ 61.859289][ T954] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 61.859292][ T954] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 61.859294][ T954] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 61.859297][ T954] ? ___sys_sendmsg (net/socket.c:2758) [ 61.859300][ T954] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 61.859302][ T954] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 61.859305][ T954] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 61.859306][ T954] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 61.859308][ T954] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 61.859309][ T954] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 61.859310][ T954] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 61.859313][ T954] ? __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) [ 61.859314][ T954] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 61.859316][ T954] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 61.859319][ T954] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 61.859320][ T954] ? nla_get_range_signed (lib/nlattr.c:270) [ 61.859325][ T954] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 61.859327][ T954] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 61.859332][ T954] rtnl_newlink (net/core/rtnetlink.c:4215) [ 61.859338][ T954] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 61.859339][ T954] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 61.859344][ T954] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 61.859346][ T954] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 61.859348][ T954] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 61.859349][ T954] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 61.859353][ T954] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 61.859355][ T954] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 61.859358][ T954] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 61.859359][ T954] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 61.859364][ T954] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 61.859366][ T954] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 61.859369][ T954] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 61.859372][ T954] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 61.859375][ T954] ? netlink_ack (./include/linux/skbuff.h:2718) [ 61.859381][ T954] ? 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)) [ 61.859383][ T954] ? 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)) [ 61.859387][ T954] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 61.859395][ T954] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 61.859397][ T954] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 61.859401][ T954] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 61.859405][ T954] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 61.859409][ T954] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 61.859411][ T954] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 61.859416][ T954] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 61.859419][ T954] ____sys_sendmsg (net/socket.c:2713) [ 61.859421][ T954] ? copy_msghdr_from_user (net/socket.c:2650) [ 61.859423][ T954] ? sock_write_iter (net/socket.c:1269) [ 61.859425][ T954] ? move_addr_to_kernel (net/socket.c:258) [ 61.859432][ T954] ___sys_sendmsg (net/socket.c:2767) [ 61.859435][ T954] ? copy_msghdr_from_user (net/socket.c:2619) [ 61.859450][ T954] __sys_sendmsg (net/socket.c:2799) [ 61.859453][ T954] ? __sys_sendmsg_sock (net/socket.c:2780) [ 61.859459][ T954] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 61.859462][ T954] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 61.859465][ T954] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 61.859468][ T954] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 61.859470][ T954] RIP: 0033:0x7f9e10f6c54e [ 61.859474][ T954] 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 [ 61.859476][ T954] RSP: 002b:00007ffc90340c00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 61.859478][ T954] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f9e10f6c54e [ 61.859480][ T954] RDX: 0000000000000000 RSI: 00007ffc90340cb0 RDI: 0000000000000005 [ 61.859481][ T954] RBP: 00007ffc90340c10 R08: 0000000000000000 R09: 0000000000000000 [ 61.859482][ T954] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9184e6 [ 61.859483][ T954] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc90341380 | [ 75.961712][ T71] softirqs last disabled at (513230): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 75.961714][ T71] Preemption disabled at: | [ 75.961715][ T71] vprintk_emit (kernel/printk/printk.c:2471) | [ 75.961724][ T71] Tainted: [W]=WARN [ 75.961725][ T71] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 75.961726][ T71] Workqueue: netns cleanup_net [ 75.961729][ T71] Call Trace: [ 75.961731][ T71] [ 75.961733][ T71] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 75.961739][ T71] ? vprintk_emit (kernel/printk/printk.c:2471) [ 75.961740][ T71] __might_resched.cold (kernel/sched/core.c:9234) [ 75.961745][ T71] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 75.961749][ T71] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 75.961753][ T71] __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)) [ 75.961755][ T71] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 75.961762][ T71] ? 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) [ 75.961765][ T71] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 75.961769][ T71] put_chars (drivers/char/virtio_console.c:1176) [ 75.961771][ T71] ? __send_to_port (drivers/char/virtio_console.c:654) [ 75.961772][ T71] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 75.961776][ T71] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 75.961779][ T71] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 75.961784][ T71] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 75.961788][ T71] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 75.961793][ T71] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 75.961796][ T71] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 75.961801][ T71] console_emit_next_record (kernel/printk/printk.c:3183) [ 75.961806][ T71] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 75.961808][ T71] ? 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)) [ 75.961811][ T71] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 75.961813][ T71] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 75.961817][ T71] console_flush_one_record (kernel/printk/printk.c:3268) [ 75.961821][ T71] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 75.961823][ T71] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 75.961829][ T71] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 75.961832][ T71] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 75.961834][ T71] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 75.961835][ T71] ? 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) [ 75.961839][ T71] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 75.961841][ T71] ? vprintk_emit (kernel/printk/printk.c:2478) [ 75.961844][ T71] vprintk_emit (kernel/printk/printk.c:2479) [ 75.961847][ T71] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 75.961848][ T71] ? cleanup_net (net/core/net_namespace.c:706) [ 75.961850][ T71] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 75.961852][ T71] ? kthread (kernel/kthread.c:436) [ 75.961854][ T71] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 75.961857][ T71] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 75.961862][ T71] _printk (kernel/printk/printk.c:2504) [ 75.961867][ T71] ? snapshot_read.cold (user.c:?) [ 75.961871][ T71] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 75.961875][ T71] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 75.961879][ T71] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 75.961882][ T71] ? netdev_notice (net/core/dev.c:13194) [ 75.961886][ T71] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 75.961888][ T71] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 75.961891][ T71] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 75.961893][ T71] ? 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) [ 75.961895][ T71] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 75.961899][ T71] dev_set_allmulti (net/core/dev_api.c:315) [ 75.961903][ T71] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 75.961907][ T71] ? unregister_netdevice_many (net/core/dev.c:12589) [ 75.961908][ T71] ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2)) [ 75.961913][ T71] br_dev_delete (net/bridge/br_if.c:387) [ 75.961917][ T71] br_net_exit_rtnl (net/bridge/br.c:414) [ 75.961920][ T71] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 75.961924][ T71] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 75.961928][ T71] ? netns_install (./include/linux/ns_common.h:26) [ 75.961929][ T71] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 75.961933][ T71] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 75.961937][ T71] cleanup_net (net/core/net_namespace.c:706) [ 75.961941][ T71] ? net_passive_dec (./include/linux/llist.h:241) [ 75.961944][ T71] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 75.961946][ T71] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 75.961950][ T71] process_one_work (kernel/workqueue.c:3387) [ 75.961957][ T71] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 75.961960][ T71] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 75.961968][ T71] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 75.961972][ T71] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 75.961974][ T71] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 75.961977][ T71] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 75.961980][ T71] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 75.961982][ T71] kthread (kernel/kthread.c:436) [ 75.961984][ T71] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 75.961987][ T71] ? kthread_affine_preferred (kernel/kthread.c:857) [ 75.961990][ T71] ret_from_fork (arch/x86/kernel/process.c:158) [ 75.961993][ T71] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 75.961996][ T71] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 75.962000][ T71] ? kthread_affine_preferred (kernel/kthread.c:857) Finger prints: addrconf_permanent_addr:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars __irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars netlink_release:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars