====================================== | [ 13.980871][ T243] softirqs last disabled at (20770): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 13.980873][ T243] Preemption disabled at: | [ 13.980874][ T243] vprintk_emit (kernel/printk/printk.c:2471) | [ 13.980882][ T243] Tainted: [W]=WARN [ 13.980883][ T243] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 13.980885][ T243] Call Trace: [ 13.980887][ T243] [ 13.980888][ T243] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 13.980894][ T243] ? vprintk_emit (kernel/printk/printk.c:2471) [ 13.980896][ T243] __might_resched.cold (kernel/sched/core.c:9234) [ 13.980901][ T243] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 13.980905][ 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) [ 13.980909][ 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)) [ 13.980911][ T243] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.980918][ 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) [ 13.980921][ T243] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 13.980924][ T243] put_chars (drivers/char/virtio_console.c:1176) [ 13.980927][ T243] ? __send_to_port (drivers/char/virtio_console.c:654) [ 13.980933][ T243] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 13.980941][ T243] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 13.980944][ T243] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.980949][ T243] console_emit_next_record (kernel/printk/printk.c:3183) [ 13.980952][ T243] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 13.980954][ 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)) [ 13.980957][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.980960][ T243] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.980964][ T243] console_flush_one_record (kernel/printk/printk.c:3268) [ 13.980968][ T243] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 13.980970][ T243] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.980975][ T243] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 13.980978][ T243] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 13.980980][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.980982][ 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) [ 13.980986][ T243] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 13.980987][ T243] ? vprintk_emit (kernel/printk/printk.c:2478) [ 13.980990][ T243] vprintk_emit (kernel/printk/printk.c:2479) [ 13.980993][ T243] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 13.980996][ T243] ? save_trace (kernel/locking/lockdep.c:589) [ 13.981000][ T243] _printk (kernel/printk/printk.c:2504) [ 13.981003][ T243] ? snapshot_read.cold (user.c:?) [ 13.981007][ T243] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 13.981009][ T243] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 13.981013][ T243] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 13.981016][ T243] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 13.981018][ T243] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 13.981021][ T243] ? netdev_notice (net/core/dev.c:13194) [ 13.981023][ T243] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 13.981026][ T243] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.981029][ T243] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 13.981033][ T243] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 13.981035][ T243] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 13.981036][ T243] ? register_netdev (net/core/dev.c:11618) [ 13.981038][ 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)) [ 13.981043][ T243] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 13.981046][ T243] ? __kernel_text_address (kernel/extable.c:79) [ 13.981049][ T243] ? write_profile (profile.c:?) [ 13.981053][ T243] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 13.981059][ T243] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 13.981062][ T243] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 13.981064][ T243] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 13.981066][ T243] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 13.981068][ T243] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 13.981072][ T243] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 13.981074][ T243] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 13.981076][ T243] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 13.981078][ T243] ? kasan_save_stack (mm/kasan/common.c:58) [ 13.981080][ T243] ? kasan_save_stack (mm/kasan/common.c:57) [ 13.981081][ T243] ? kasan_save_track (mm/kasan/common.c:78) [ 13.981083][ T243] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 13.981085][ T243] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.981087][ T243] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 13.981090][ T243] ? ___sys_sendmsg (net/socket.c:2758) [ 13.981094][ T243] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.981096][ T243] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 13.981099][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.981100][ T243] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 13.981102][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.981103][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.981105][ T243] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 13.981107][ 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) [ 13.981110][ T243] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 13.981112][ T243] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 13.981115][ T243] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 13.981116][ T243] ? nla_get_range_signed (lib/nlattr.c:270) [ 13.981121][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.981123][ T243] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 13.981129][ T243] rtnl_newlink (net/core/rtnetlink.c:4215) [ 13.981134][ T243] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.981136][ T243] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.981140][ T243] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.981142][ T243] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 13.981144][ T243] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.981146][ T243] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.981150][ T243] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 13.981152][ T243] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 13.981155][ T243] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 13.981156][ T243] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 13.981161][ T243] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 13.981163][ T243] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 13.981166][ T243] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 13.981169][ T243] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 13.981172][ T243] ? netlink_ack (./include/linux/skbuff.h:2718) [ 13.981179][ 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)) [ 13.981181][ 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)) [ 13.981186][ T243] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 13.981190][ T243] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 13.981192][ T243] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 13.981197][ T243] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 13.981201][ T243] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 13.981205][ T243] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 13.981206][ T243] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 13.981212][ T243] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 13.981215][ T243] ____sys_sendmsg (net/socket.c:2713) [ 13.981217][ T243] ? copy_msghdr_from_user (net/socket.c:2650) [ 13.981219][ T243] ? sock_write_iter (net/socket.c:1269) [ 13.981221][ T243] ? move_addr_to_kernel (net/socket.c:258) [ 13.981228][ T243] ___sys_sendmsg (net/socket.c:2767) [ 13.981231][ T243] ? copy_msghdr_from_user (net/socket.c:2619) [ 13.981251][ T243] __sys_sendmsg (net/socket.c:2799) [ 13.981254][ T243] ? __sys_sendmsg_sock (net/socket.c:2780) [ 13.981261][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 13.981263][ T243] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 13.981266][ T243] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 13.981269][ T243] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 13.981272][ T243] RIP: 0033:0x7f55f396a54e [ 13.981276][ 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 [ 13.981277][ T243] RSP: 002b:00007fff7150f520 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 13.981280][ T243] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f55f396a54e [ 13.981281][ T243] RDX: 0000000000000000 RSI: 00007fff7150f5d0 RDI: 0000000000000005 [ 13.981282][ T243] RBP: 00007fff7150f530 R08: 0000000000000000 R09: 0000000000000000 [ 13.981283][ T243] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915aab [ 13.981284][ T243] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff7150fca0 | [ 27.538518][ T70] softirqs last disabled at (10038): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 27.538521][ T70] Preemption disabled at: | [ 27.538522][ T70] vprintk_emit (kernel/printk/printk.c:2471) | [ 27.538533][ T70] Tainted: [W]=WARN [ 27.538535][ T70] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 27.538537][ T70] Workqueue: netns cleanup_net [ 27.538542][ T70] Call Trace: [ 27.538544][ T70] [ 27.538547][ T70] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 27.538555][ T70] ? vprintk_emit (kernel/printk/printk.c:2471) [ 27.538558][ T70] __might_resched.cold (kernel/sched/core.c:9234) [ 27.538564][ T70] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 27.538570][ T70] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 27.538576][ T70] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 27.538580][ T70] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 27.538592][ T70] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 27.538596][ T70] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 27.538603][ T70] put_chars (drivers/char/virtio_console.c:1176) [ 27.538607][ T70] ? __send_to_port (drivers/char/virtio_console.c:654) [ 27.538613][ T70] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 27.538621][ T70] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 27.538627][ T70] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 27.538636][ T70] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 27.538642][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.538651][ T70] console_emit_next_record (kernel/printk/printk.c:3183) [ 27.538658][ T70] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 27.538661][ T70] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 27.538667][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.538670][ T70] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 27.538677][ T70] console_flush_one_record (kernel/printk/printk.c:3268) [ 27.538685][ T70] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 27.538688][ T70] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 27.538698][ T70] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 27.538702][ T70] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 27.538705][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.538708][ T70] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 27.538715][ T70] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 27.538718][ T70] ? vprintk_emit (kernel/printk/printk.c:2478) [ 27.538723][ T70] vprintk_emit (kernel/printk/printk.c:2479) [ 27.538729][ T70] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 27.538731][ T70] ? cleanup_net (net/core/net_namespace.c:706) [ 27.538734][ T70] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 27.538738][ T70] ? kthread (kernel/kthread.c:436) [ 27.538741][ T70] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 27.538745][ T70] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 27.538754][ T70] _printk (kernel/printk/printk.c:2504) [ 27.538759][ T70] ? snapshot_read.cold (user.c:?) [ 27.538767][ T70] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 27.538772][ T70] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 27.538779][ T70] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 27.538784][ T70] ? netdev_notice (net/core/dev.c:13194) [ 27.538792][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.538795][ T70] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 27.538799][ T70] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 27.538803][ T70] ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65) [ 27.538807][ T70] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 27.538815][ T70] dev_set_allmulti (net/core/dev_api.c:315) [ 27.538821][ T70] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 27.538825][ T70] ? unregister_netdevice_many (net/core/dev.c:12589) [ 27.538828][ T70] ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2)) [ 27.538836][ T70] br_dev_delete (net/bridge/br_if.c:387) [ 27.538843][ T70] br_net_exit_rtnl (net/bridge/br.c:414) [ 27.538848][ T70] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 27.538855][ T70] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 27.538860][ T70] ? netns_install (./include/linux/ns_common.h:26) [ 27.538862][ T70] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 27.538867][ T70] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 27.538875][ T70] cleanup_net (net/core/net_namespace.c:706) [ 27.538880][ T70] ? net_passive_dec (./include/linux/llist.h:241) [ 27.538887][ T70] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 27.538891][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.538897][ T70] process_one_work (kernel/workqueue.c:3387) [ 27.538909][ T70] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 27.538914][ T70] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 27.538929][ T70] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 27.538936][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 27.538940][ T70] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 27.538944][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 27.538949][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 27.538952][ T70] kthread (kernel/kthread.c:436) [ 27.538955][ T70] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 27.538960][ T70] ? kthread_affine_preferred (kernel/kthread.c:857) [ 27.538965][ T70] ret_from_fork (arch/x86/kernel/process.c:158) [ 27.538970][ T70] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 27.538976][ T70] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 27.538981][ T70] ? kthread_affine_preferred (kernel/kthread.c:857) [ 27.538986][ T70] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 30.262528][ T474] softirqs last disabled at (28476): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 30.262530][ T474] Preemption disabled at: | [ 30.262531][ T474] vprintk_emit (kernel/printk/printk.c:2471) | [ 30.262539][ T474] Tainted: [W]=WARN [ 30.262540][ T474] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 30.262541][ T474] Call Trace: [ 30.262543][ T474] [ 30.262544][ T474] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 30.262551][ T474] ? vprintk_emit (kernel/printk/printk.c:2471) [ 30.262552][ T474] __might_resched.cold (kernel/sched/core.c:9234) [ 30.262557][ T474] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 30.262561][ T474] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 30.262565][ T474] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 30.262567][ T474] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 30.262573][ T474] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 30.262576][ T474] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 30.262580][ T474] put_chars (drivers/char/virtio_console.c:1176) [ 30.262582][ T474] ? __send_to_port (drivers/char/virtio_console.c:654) [ 30.262590][ T474] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 30.262598][ T474] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 30.262601][ T474] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.262606][ T474] console_emit_next_record (kernel/printk/printk.c:3183) [ 30.262610][ T474] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 30.262612][ T474] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 30.262615][ T474] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.262617][ T474] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.262621][ T474] console_flush_one_record (kernel/printk/printk.c:3268) [ 30.262625][ T474] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 30.262627][ T474] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.262632][ T474] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 30.262635][ T474] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 30.262637][ T474] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.262639][ T474] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 30.262642][ T474] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 30.262644][ T474] ? vprintk_emit (kernel/printk/printk.c:2478) [ 30.262646][ T474] vprintk_emit (kernel/printk/printk.c:2479) [ 30.262650][ T474] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 30.262652][ T474] ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6)) [ 30.262657][ T474] _printk (kernel/printk/printk.c:2504) [ 30.262661][ T474] ? snapshot_read.cold (user.c:?) [ 30.262662][ T474] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 30.262665][ T474] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 30.262668][ T474] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 30.262670][ T474] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 30.262673][ T474] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 30.262676][ T474] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 30.262678][ T474] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 30.262681][ T474] ? netdev_notice (net/core/dev.c:13194) [ 30.262684][ T474] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 30.262687][ T474] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 30.262689][ T474] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 30.262693][ T474] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 30.262695][ T474] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 30.262697][ T474] ? register_netdev (net/core/dev.c:11618) [ 30.262698][ T474] ? 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)) [ 30.262704][ T474] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 30.262706][ T474] ? __kernel_text_address (kernel/extable.c:79) [ 30.262709][ T474] ? write_profile (profile.c:?) [ 30.262713][ T474] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 30.262719][ T474] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 30.262722][ T474] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 30.262724][ T474] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 30.262725][ T474] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 30.262727][ T474] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 30.262730][ T474] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 30.262732][ T474] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 30.262734][ T474] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 30.262736][ T474] ? kasan_save_stack (mm/kasan/common.c:58) [ 30.262738][ T474] ? kasan_save_stack (mm/kasan/common.c:57) [ 30.262739][ T474] ? kasan_save_track (mm/kasan/common.c:78) [ 30.262741][ T474] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 30.262743][ T474] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.262745][ T474] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 30.262748][ T474] ? ___sys_sendmsg (net/socket.c:2758) [ 30.262752][ T474] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 30.262754][ T474] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 30.262756][ T474] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.262758][ T474] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.262759][ T474] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.262760][ T474] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.262762][ T474] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 30.262764][ T474] ? __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) [ 30.262765][ T474] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 30.262767][ T474] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 30.262770][ T474] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 30.262772][ T474] ? nla_get_range_signed (lib/nlattr.c:270) [ 30.262776][ T474] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.262778][ T474] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 30.262784][ T474] rtnl_newlink (net/core/rtnetlink.c:4215) [ 30.262789][ T474] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 30.262790][ T474] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.262795][ T474] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 30.262797][ T474] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 30.262798][ T474] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 30.262800][ T474] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 30.262804][ T474] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 30.262806][ T474] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 30.262809][ T474] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 30.262810][ T474] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.262815][ T474] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 30.262816][ T474] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 30.262820][ T474] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 30.262823][ T474] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 30.262826][ T474] ? netlink_ack (./include/linux/skbuff.h:2718) [ 30.262832][ T474] ? 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)) [ 30.262834][ T474] ? 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)) [ 30.262838][ T474] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 30.262842][ T474] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 30.262844][ T474] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 30.262849][ T474] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 30.262852][ T474] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 30.262856][ T474] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 30.262858][ T474] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 30.262863][ T474] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 30.262866][ T474] ____sys_sendmsg (net/socket.c:2713) [ 30.262868][ T474] ? copy_msghdr_from_user (net/socket.c:2650) [ 30.262870][ T474] ? sock_write_iter (net/socket.c:1269) [ 30.262872][ T474] ? move_addr_to_kernel (net/socket.c:258) [ 30.262879][ T474] ___sys_sendmsg (net/socket.c:2767) [ 30.262882][ T474] ? copy_msghdr_from_user (net/socket.c:2619) [ 30.262897][ T474] __sys_sendmsg (net/socket.c:2799) [ 30.262900][ T474] ? __sys_sendmsg_sock (net/socket.c:2780) [ 30.262906][ T474] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.262909][ T474] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 30.262912][ T474] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 30.262915][ T474] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 30.262917][ T474] RIP: 0033:0x7fb8ae4f654e [ 30.262921][ T474] 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 [ 30.262923][ T474] RSP: 002b:00007ffe218d5c60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 30.262926][ T474] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fb8ae4f654e [ 30.262927][ T474] RDX: 0000000000000000 RSI: 00007ffe218d5d10 RDI: 0000000000000005 [ 30.262928][ T474] RBP: 00007ffe218d5c70 R08: 0000000000000000 R09: 0000000000000000 [ 30.262929][ T474] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915abb [ 30.262929][ T474] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe218d63e0 | [ 31.334747][ T497] softirqs last disabled at (14978): addrconf_permanent_addr (net/ipv6/addrconf.c:3651) | [ 31.334750][ T497] Preemption disabled at: | [ 31.334751][ T497] vprintk_emit (kernel/printk/printk.c:2471) | [ 31.334762][ T497] Tainted: [W]=WARN [ 31.334764][ T497] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 31.334766][ T497] Call Trace: [ 31.334768][ T497] [ 31.334770][ T497] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 31.334778][ T497] ? vprintk_emit (kernel/printk/printk.c:2471) [ 31.334781][ T497] __might_resched.cold (kernel/sched/core.c:9234) [ 31.334786][ T497] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 31.334792][ 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) [ 31.334799][ 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)) [ 31.334802][ T497] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 31.334812][ 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) [ 31.334815][ T497] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 31.334821][ T497] put_chars (drivers/char/virtio_console.c:1176) [ 31.334825][ T497] ? __send_to_port (drivers/char/virtio_console.c:654) [ 31.334827][ T497] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 31.334833][ T497] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 31.334842][ T497] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 31.334854][ T497] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 31.334858][ T497] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.334861][ T497] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 31.334869][ T497] console_emit_next_record (kernel/printk/printk.c:3183) [ 31.334875][ T497] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 31.334878][ 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)) [ 31.334883][ T497] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.334886][ T497] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 31.334893][ T497] console_flush_one_record (kernel/printk/printk.c:3268) [ 31.334900][ T497] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 31.334903][ T497] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.334912][ T497] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 31.334916][ T497] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 31.334919][ T497] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.334922][ 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) [ 31.334928][ T497] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 31.334931][ T497] ? vprintk_emit (kernel/printk/printk.c:2478) [ 31.334936][ T497] vprintk_emit (kernel/printk/printk.c:2479) [ 31.334941][ T497] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 31.334945][ T497] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 31.334949][ T497] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 31.334955][ T497] _printk (kernel/printk/printk.c:2504) [ 31.334960][ T497] ? snapshot_read.cold (user.c:?) [ 31.334966][ T497] ? br_multicast_flood (??:?) [ 31.334970][ T497] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 31.334972][ T497] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 31.334975][ T497] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 31.334983][ T497] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 31.334989][ T497] br_init_port (net/bridge/br_stp_if.c:39) [ 31.334993][ T497] new_nbp (net/bridge/br_if.c:449) [ 31.335000][ T497] br_add_if (net/bridge/br_if.c:592) [ 31.335003][ T497] ? netif_set_allmulti (./include/net/netdev_lock.h:33) [ 31.335009][ T497] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 31.335018][ T497] do_set_master (net/core/rtnetlink.c:3071) [ 31.335020][ T497] ? netif_change_flags (net/core/dev.c:9882) [ 31.335026][ T497] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 31.335032][ T497] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 31.335037][ T497] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 31.335039][ T497] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 31.335042][ T497] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 31.335047][ T497] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 31.335050][ T497] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 31.335053][ T497] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 31.335057][ T497] ? kasan_save_stack (mm/kasan/common.c:58) [ 31.335061][ T497] ? kasan_save_stack (mm/kasan/common.c:57) [ 31.335063][ T497] ? kasan_save_track (mm/kasan/common.c:78) [ 31.335065][ T497] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 31.335069][ T497] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.335072][ T497] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 31.335076][ T497] ? ___sys_sendmsg (net/socket.c:2758) [ 31.335082][ T497] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 31.335086][ T497] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 31.335090][ T497] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.335094][ T497] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 31.335096][ T497] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.335098][ T497] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.335101][ T497] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 31.335105][ 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) [ 31.335108][ T497] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 31.335111][ T497] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 31.335117][ T497] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 31.335119][ T497] ? nla_get_range_signed (lib/nlattr.c:270) [ 31.335126][ T497] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.335130][ T497] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 31.335139][ T497] rtnl_newlink (net/core/rtnetlink.c:4215) [ 31.335149][ T497] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 31.335152][ T497] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.335160][ T497] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 31.335163][ T497] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 31.335166][ T497] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 31.335170][ T497] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 31.335176][ T497] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 31.335179][ T497] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 31.335184][ T497] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 31.335187][ T497] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 31.335195][ T497] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 31.335198][ T497] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 31.335204][ T497] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 31.335208][ T497] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 31.335213][ T497] ? netlink_ack (./include/linux/skbuff.h:2718) [ 31.335224][ 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)) [ 31.335228][ 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)) [ 31.335236][ T497] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 31.335242][ T497] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 31.335246][ T497] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 31.335253][ T497] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 31.335260][ T497] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 31.335267][ T497] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 31.335269][ T497] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 31.335278][ T497] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 31.335282][ T497] ____sys_sendmsg (net/socket.c:2713) [ 31.335286][ T497] ? copy_msghdr_from_user (net/socket.c:2650) [ 31.335290][ T497] ? sock_write_iter (net/socket.c:1269) [ 31.335292][ T497] ? move_addr_to_kernel (net/socket.c:258) [ 31.335305][ T497] ___sys_sendmsg (net/socket.c:2767) [ 31.335310][ T497] ? copy_msghdr_from_user (net/socket.c:2619) [ 31.335347][ T497] __sys_sendmsg (net/socket.c:2799) [ 31.335351][ T497] ? __sys_sendmsg_sock (net/socket.c:2780) [ 31.335362][ T497] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 31.335368][ T497] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 31.335372][ T497] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 31.335376][ T497] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 31.335380][ T497] RIP: 0033:0x7f7552eea54e [ 31.335385][ 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 [ 31.335388][ T497] RSP: 002b:00007ffc763348d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 31.335391][ T497] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f7552eea54e [ 31.335393][ T497] RDX: 0000000000000000 RSI: 00007ffc76334980 RDI: 0000000000000005 [ 31.335395][ T497] RBP: 00007ffc763348e0 R08: 0000000000000000 R09: 0000000000000000 [ 31.335396][ T497] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915abc [ 31.335398][ T497] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc76335050 | [ 44.291702][ T70] softirqs last disabled at (164723): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 44.291704][ T70] Preemption disabled at: | [ 44.291705][ T70] vprintk_emit (kernel/printk/printk.c:2471) | [ 44.291713][ T70] Tainted: [W]=WARN [ 44.291714][ T70] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 44.291716][ T70] Workqueue: netns cleanup_net [ 44.291720][ T70] Call Trace: [ 44.291721][ T70] [ 44.291723][ T70] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 44.291730][ T70] ? vprintk_emit (kernel/printk/printk.c:2471) [ 44.291731][ T70] __might_resched.cold (kernel/sched/core.c:9234) [ 44.291736][ T70] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 44.291740][ T70] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 44.291745][ T70] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 44.291747][ T70] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 44.291753][ T70] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 44.291756][ T70] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 44.291760][ T70] put_chars (drivers/char/virtio_console.c:1176) [ 44.291763][ T70] ? __send_to_port (drivers/char/virtio_console.c:654) [ 44.291764][ T70] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 44.291768][ T70] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 44.291780][ T70] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 44.291786][ T70] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 44.291790][ T70] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 44.291796][ T70] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 44.291799][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.291804][ T70] console_emit_next_record (kernel/printk/printk.c:3183) [ 44.291808][ T70] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 44.291810][ T70] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 44.291813][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.291815][ T70] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 44.291819][ T70] console_flush_one_record (kernel/printk/printk.c:3268) [ 44.291823][ T70] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 44.291825][ T70] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 44.291831][ T70] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 44.291833][ T70] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 44.291836][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.291837][ T70] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 44.291841][ T70] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 44.291843][ T70] ? vprintk_emit (kernel/printk/printk.c:2478) [ 44.291846][ T70] vprintk_emit (kernel/printk/printk.c:2479) [ 44.291849][ T70] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 44.291850][ T70] ? cleanup_net (net/core/net_namespace.c:706) [ 44.291852][ T70] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 44.291854][ T70] ? kthread (kernel/kthread.c:436) [ 44.291856][ T70] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 44.291859][ T70] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 44.291864][ T70] _printk (kernel/printk/printk.c:2504) [ 44.291868][ T70] ? snapshot_read.cold (user.c:?) [ 44.291872][ T70] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 44.291876][ T70] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 44.291880][ T70] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 44.291883][ T70] ? netdev_notice (net/core/dev.c:13194) [ 44.291888][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.291889][ T70] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 44.291892][ T70] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 44.291894][ T70] ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65) [ 44.291896][ T70] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 44.291900][ T70] dev_set_allmulti (net/core/dev_api.c:315) [ 44.291904][ T70] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 44.291908][ T70] ? unregister_netdevice_many (net/core/dev.c:12589) [ 44.291909][ T70] ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2)) [ 44.291915][ T70] br_dev_delete (net/bridge/br_if.c:387) [ 44.291918][ T70] br_net_exit_rtnl (net/bridge/br.c:414) [ 44.291922][ T70] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 44.291925][ T70] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 44.291929][ T70] ? netns_install (./include/linux/ns_common.h:26) [ 44.291931][ T70] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 44.291934][ T70] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 44.291939][ T70] cleanup_net (net/core/net_namespace.c:706) [ 44.291942][ T70] ? net_passive_dec (./include/linux/llist.h:241) [ 44.291946][ T70] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 44.291948][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.291951][ T70] process_one_work (kernel/workqueue.c:3387) [ 44.291958][ T70] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 44.291961][ T70] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 44.291969][ T70] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 44.291973][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 44.291975][ T70] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 44.291978][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 44.291981][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 44.291983][ T70] kthread (kernel/kthread.c:436) [ 44.291985][ T70] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 44.291988][ T70] ? kthread_affine_preferred (kernel/kthread.c:857) [ 44.291991][ T70] ret_from_fork (arch/x86/kernel/process.c:158) [ 44.291994][ T70] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 44.291997][ T70] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 44.292001][ T70] ? kthread_affine_preferred (kernel/kthread.c:857) [ 44.292003][ T70] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 47.188241][ T712] softirqs last disabled at (26692): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 47.188244][ T712] Preemption disabled at: | [ 47.188244][ T712] vprintk_emit (kernel/printk/printk.c:2471) | [ 47.188253][ T712] Tainted: [W]=WARN [ 47.188254][ T712] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 47.188255][ T712] Call Trace: [ 47.188257][ T712] [ 47.188259][ T712] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 47.188265][ T712] ? vprintk_emit (kernel/printk/printk.c:2471) [ 47.188266][ T712] __might_resched.cold (kernel/sched/core.c:9234) [ 47.188271][ T712] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 47.188275][ 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) [ 47.188280][ 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)) [ 47.188281][ T712] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 47.188288][ 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) [ 47.188291][ T712] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 47.188295][ T712] put_chars (drivers/char/virtio_console.c:1176) [ 47.188297][ T712] ? __send_to_port (drivers/char/virtio_console.c:654) [ 47.188303][ T712] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 47.188311][ T712] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 47.188314][ T712] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 47.188319][ T712] console_emit_next_record (kernel/printk/printk.c:3183) [ 47.188323][ T712] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 47.188324][ 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)) [ 47.188328][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 47.188330][ T712] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 47.188334][ T712] console_flush_one_record (kernel/printk/printk.c:3268) [ 47.188338][ T712] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 47.188340][ T712] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 47.188346][ T712] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 47.188348][ T712] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 47.188350][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 47.188352][ 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) [ 47.188356][ T712] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 47.188357][ T712] ? vprintk_emit (kernel/printk/printk.c:2478) [ 47.188360][ T712] vprintk_emit (kernel/printk/printk.c:2479) [ 47.188363][ T712] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 47.188366][ T712] ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6)) [ 47.188371][ T712] _printk (kernel/printk/printk.c:2504) [ 47.188374][ T712] ? snapshot_read.cold (user.c:?) [ 47.188381][ T712] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 47.188383][ T712] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 47.188386][ T712] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 47.188388][ T712] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 47.188392][ T712] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 47.188394][ T712] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 47.188396][ T712] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 47.188399][ T712] ? netdev_notice (net/core/dev.c:13194) [ 47.188402][ T712] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 47.188405][ T712] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 47.188407][ T712] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 47.188411][ T712] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 47.188413][ T712] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 47.188415][ T712] ? register_netdev (net/core/dev.c:11618) [ 47.188417][ 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)) [ 47.188422][ T712] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 47.188424][ T712] ? __kernel_text_address (kernel/extable.c:79) [ 47.188427][ T712] ? write_profile (profile.c:?) [ 47.188431][ T712] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 47.188436][ T712] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 47.188440][ T712] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 47.188442][ T712] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 47.188443][ T712] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 47.188445][ T712] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 47.188448][ T712] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 47.188450][ T712] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 47.188452][ T712] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 47.188454][ T712] ? kasan_save_stack (mm/kasan/common.c:58) [ 47.188456][ T712] ? kasan_save_stack (mm/kasan/common.c:57) [ 47.188457][ T712] ? kasan_save_track (mm/kasan/common.c:78) [ 47.188458][ T712] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 47.188461][ T712] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 47.188462][ T712] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 47.188465][ T712] ? ___sys_sendmsg (net/socket.c:2758) [ 47.188469][ T712] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 47.188471][ T712] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 47.188474][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 47.188475][ T712] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 47.188477][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 47.188478][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 47.188480][ T712] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 47.188482][ 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) [ 47.188483][ T712] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 47.188485][ T712] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 47.188488][ T712] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 47.188489][ T712] ? nla_get_range_signed (lib/nlattr.c:270) [ 47.188494][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 47.188496][ T712] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 47.188501][ T712] rtnl_newlink (net/core/rtnetlink.c:4215) [ 47.188506][ T712] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 47.188508][ T712] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 47.188513][ T712] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 47.188514][ T712] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 47.188516][ T712] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 47.188518][ T712] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 47.188522][ T712] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 47.188524][ T712] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 47.188527][ T712] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 47.188528][ T712] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 47.188533][ T712] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 47.188534][ T712] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 47.188538][ T712] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 47.188541][ T712] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 47.188544][ T712] ? netlink_ack (./include/linux/skbuff.h:2718) [ 47.188550][ 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)) [ 47.188552][ 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)) [ 47.188556][ T712] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 47.188560][ T712] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 47.188563][ T712] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 47.188567][ T712] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 47.188571][ T712] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 47.188575][ T712] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 47.188576][ T712] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 47.188581][ T712] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 47.188584][ T712] ____sys_sendmsg (net/socket.c:2713) [ 47.188586][ T712] ? copy_msghdr_from_user (net/socket.c:2650) [ 47.188592][ T712] ? sock_write_iter (net/socket.c:1269) [ 47.188593][ T712] ? move_addr_to_kernel (net/socket.c:258) [ 47.188601][ T712] ___sys_sendmsg (net/socket.c:2767) [ 47.188603][ T712] ? copy_msghdr_from_user (net/socket.c:2619) [ 47.188619][ T712] __sys_sendmsg (net/socket.c:2799) [ 47.188621][ T712] ? __sys_sendmsg_sock (net/socket.c:2780) [ 47.188628][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 47.188631][ T712] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 47.188633][ T712] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 47.188636][ T712] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 47.188639][ T712] RIP: 0033:0x7f73e847f54e [ 47.188643][ 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 [ 47.188644][ T712] RSP: 002b:00007ffe978d5b70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 47.188647][ T712] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f73e847f54e [ 47.188648][ T712] RDX: 0000000000000000 RSI: 00007ffe978d5c20 RDI: 0000000000000005 [ 47.188649][ T712] RBP: 00007ffe978d5b80 R08: 0000000000000000 R09: 0000000000000000 [ 47.188650][ T712] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915acc [ 47.188651][ T712] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe978d62f0 | [ 60.761320][ T70] softirqs last disabled at (334239): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 60.761323][ T70] Preemption disabled at: | [ 60.761323][ T70] vprintk_emit (kernel/printk/printk.c:2471) | [ 60.761331][ T70] Tainted: [W]=WARN [ 60.761332][ T70] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 60.761334][ T70] Workqueue: netns cleanup_net [ 60.761337][ T70] Call Trace: [ 60.761338][ T70] [ 60.761340][ T70] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 60.761346][ T70] ? vprintk_emit (kernel/printk/printk.c:2471) [ 60.761348][ T70] __might_resched.cold (kernel/sched/core.c:9234) [ 60.761352][ T70] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 60.761356][ T70] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 60.761360][ T70] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 60.761362][ T70] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 60.761369][ T70] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 60.761372][ T70] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 60.761376][ T70] put_chars (drivers/char/virtio_console.c:1176) [ 60.761378][ T70] ? __send_to_port (drivers/char/virtio_console.c:654) [ 60.761379][ T70] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 60.761383][ T70] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 60.761386][ T70] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 60.761390][ T70] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 60.761394][ T70] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 60.761400][ T70] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 60.761403][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 60.761408][ T70] console_emit_next_record (kernel/printk/printk.c:3183) [ 60.761412][ T70] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 60.761418][ T70] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 60.761422][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 60.761424][ T70] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 60.761428][ T70] console_flush_one_record (kernel/printk/printk.c:3268) [ 60.761432][ T70] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 60.761434][ T70] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 60.761440][ T70] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 60.761443][ T70] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 60.761445][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 60.761446][ T70] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 60.761450][ T70] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 60.761452][ T70] ? vprintk_emit (kernel/printk/printk.c:2478) [ 60.761455][ T70] vprintk_emit (kernel/printk/printk.c:2479) [ 60.761458][ T70] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 60.761459][ T70] ? cleanup_net (net/core/net_namespace.c:706) [ 60.761461][ T70] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 60.761463][ T70] ? kthread (kernel/kthread.c:436) [ 60.761465][ T70] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 60.761468][ T70] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 60.761473][ T70] _printk (kernel/printk/printk.c:2504) [ 60.761476][ T70] ? snapshot_read.cold (user.c:?) [ 60.761481][ T70] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 60.761485][ T70] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 60.761488][ T70] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 60.761491][ T70] ? netdev_notice (net/core/dev.c:13194) [ 60.761496][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 60.761497][ T70] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 60.761500][ T70] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 60.761502][ T70] ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65) [ 60.761504][ T70] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 60.761508][ T70] dev_set_allmulti (net/core/dev_api.c:315) [ 60.761512][ T70] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 60.761516][ T70] ? unregister_netdevice_many (net/core/dev.c:12589) [ 60.761518][ T70] ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2)) [ 60.761523][ T70] br_dev_delete (net/bridge/br_if.c:387) [ 60.761526][ T70] br_net_exit_rtnl (net/bridge/br.c:414) [ 60.761530][ T70] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 60.761534][ T70] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 60.761537][ T70] ? netns_install (./include/linux/ns_common.h:26) [ 60.761539][ T70] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 60.761542][ T70] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 60.761547][ T70] cleanup_net (net/core/net_namespace.c:706) [ 60.761550][ T70] ? net_passive_dec (./include/linux/llist.h:241) [ 60.761554][ T70] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 60.761556][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 60.761559][ T70] process_one_work (kernel/workqueue.c:3387) [ 60.761566][ T70] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 60.761569][ T70] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 60.761577][ T70] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 60.761581][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 60.761583][ T70] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 60.761586][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 60.761592][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 60.761594][ T70] kthread (kernel/kthread.c:436) [ 60.761596][ T70] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 60.761600][ T70] ? kthread_affine_preferred (kernel/kthread.c:857) [ 60.761603][ T70] ret_from_fork (arch/x86/kernel/process.c:158) [ 60.761606][ T70] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 60.761610][ T70] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 60.761613][ T70] ? kthread_affine_preferred (kernel/kthread.c:857) [ 60.761617][ T70] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 63.167138][ T952] softirqs last disabled at (26240): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 63.167141][ T952] Preemption disabled at: | [ 63.167141][ T952] vprintk_emit (kernel/printk/printk.c:2471) | [ 63.167149][ T952] Tainted: [W]=WARN [ 63.167150][ T952] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 63.167152][ T952] Call Trace: [ 63.167154][ T952] [ 63.167155][ T952] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 63.167161][ T952] ? vprintk_emit (kernel/printk/printk.c:2471) [ 63.167162][ T952] __might_resched.cold (kernel/sched/core.c:9234) [ 63.167167][ T952] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 63.167171][ T952] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 63.167175][ T952] __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)) [ 63.167177][ T952] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 63.167183][ T952] ? 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) [ 63.167186][ T952] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 63.167190][ T952] put_chars (drivers/char/virtio_console.c:1176) [ 63.167192][ T952] ? __send_to_port (drivers/char/virtio_console.c:654) [ 63.167198][ T952] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 63.167205][ T952] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 63.167209][ T952] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 63.167213][ T952] console_emit_next_record (kernel/printk/printk.c:3183) [ 63.167217][ T952] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 63.167219][ T952] ? 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)) [ 63.167222][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 63.167224][ T952] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 63.167228][ T952] console_flush_one_record (kernel/printk/printk.c:3268) [ 63.167232][ T952] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 63.167234][ T952] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 63.167239][ T952] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 63.167242][ T952] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 63.167244][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 63.167246][ T952] ? 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) [ 63.167249][ T952] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 63.167251][ T952] ? vprintk_emit (kernel/printk/printk.c:2478) [ 63.167254][ T952] vprintk_emit (kernel/printk/printk.c:2479) [ 63.167257][ T952] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 63.167259][ T952] ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6)) [ 63.167264][ T952] _printk (kernel/printk/printk.c:2504) [ 63.167268][ T952] ? snapshot_read.cold (user.c:?) [ 63.167270][ T952] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 63.167272][ T952] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 63.167275][ T952] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 63.167277][ T952] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 63.167280][ T952] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 63.167283][ T952] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 63.167285][ T952] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 63.167288][ T952] ? netdev_notice (net/core/dev.c:13194) [ 63.167291][ T952] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 63.167294][ T952] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 63.167296][ T952] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 63.167300][ T952] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 63.167302][ T952] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 63.167304][ T952] ? register_netdev (net/core/dev.c:11618) [ 63.167305][ T952] ? 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)) [ 63.167311][ T952] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 63.167313][ T952] ? __kernel_text_address (kernel/extable.c:79) [ 63.167315][ T952] ? write_profile (profile.c:?) [ 63.167319][ T952] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 63.167325][ T952] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 63.167328][ T952] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 63.167330][ T952] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 63.167332][ T952] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 63.167333][ T952] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 63.167337][ T952] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 63.167339][ T952] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 63.167341][ T952] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 63.167343][ T952] ? kasan_save_stack (mm/kasan/common.c:58) [ 63.167345][ T952] ? kasan_save_stack (mm/kasan/common.c:57) [ 63.167346][ T952] ? kasan_save_track (mm/kasan/common.c:78) [ 63.167347][ T952] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 63.167349][ T952] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 63.167351][ T952] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 63.167354][ T952] ? ___sys_sendmsg (net/socket.c:2758) [ 63.167358][ T952] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 63.167360][ T952] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 63.167363][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 63.167364][ T952] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 63.167366][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 63.167367][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 63.167369][ T952] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 63.167371][ T952] ? __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) [ 63.167372][ T952] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 63.167374][ T952] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 63.167377][ T952] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 63.167378][ T952] ? nla_get_range_signed (lib/nlattr.c:270) [ 63.167383][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 63.167385][ T952] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 63.167390][ T952] rtnl_newlink (net/core/rtnetlink.c:4215) [ 63.167396][ T952] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 63.167397][ T952] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 63.167402][ T952] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 63.167404][ T952] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 63.167406][ T952] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 63.167407][ T952] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 63.167411][ T952] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 63.167413][ T952] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 63.167421][ T952] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 63.167422][ T952] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 63.167427][ T952] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 63.167429][ T952] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 63.167432][ T952] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 63.167435][ T952] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 63.167438][ T952] ? netlink_ack (./include/linux/skbuff.h:2718) [ 63.167444][ T952] ? 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)) [ 63.167446][ T952] ? 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)) [ 63.167451][ T952] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 63.167454][ T952] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 63.167457][ T952] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 63.167461][ T952] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 63.167465][ T952] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 63.167469][ T952] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 63.167470][ T952] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 63.167475][ T952] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 63.167478][ T952] ____sys_sendmsg (net/socket.c:2713) [ 63.167480][ T952] ? copy_msghdr_from_user (net/socket.c:2650) [ 63.167483][ T952] ? sock_write_iter (net/socket.c:1269) [ 63.167484][ T952] ? move_addr_to_kernel (net/socket.c:258) [ 63.167491][ T952] ___sys_sendmsg (net/socket.c:2767) [ 63.167494][ T952] ? copy_msghdr_from_user (net/socket.c:2619) [ 63.167509][ T952] __sys_sendmsg (net/socket.c:2799) [ 63.167512][ T952] ? __sys_sendmsg_sock (net/socket.c:2780) [ 63.167518][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 63.167521][ T952] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 63.167524][ T952] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 63.167527][ T952] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 63.167529][ T952] RIP: 0033:0x7f8bfcd8754e [ 63.167533][ T952] 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 [ 63.167534][ T952] RSP: 002b:00007ffcae24f510 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 63.167537][ T952] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f8bfcd8754e [ 63.167538][ T952] RDX: 0000000000000000 RSI: 00007ffcae24f5c0 RDI: 0000000000000005 [ 63.167539][ T952] RBP: 00007ffcae24f520 R08: 0000000000000000 R09: 0000000000000000 [ 63.167540][ T952] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915adc [ 63.167541][ T952] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcae24fc90 | [ 76.916024][ T70] softirqs last disabled at (498782): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 76.916027][ T70] Preemption disabled at: | [ 76.916027][ T70] vprintk_emit (kernel/printk/printk.c:2471) | [ 76.916036][ T70] Tainted: [W]=WARN [ 76.916037][ T70] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 76.916039][ T70] Workqueue: netns cleanup_net [ 76.916042][ T70] Call Trace: [ 76.916044][ T70] [ 76.916045][ T70] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 76.916051][ T70] ? vprintk_emit (kernel/printk/printk.c:2471) [ 76.916053][ T70] __might_resched.cold (kernel/sched/core.c:9234) [ 76.916057][ T70] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 76.916061][ T70] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 76.916066][ T70] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 76.916068][ T70] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 76.916074][ T70] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 76.916077][ T70] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 76.916081][ T70] put_chars (drivers/char/virtio_console.c:1176) [ 76.916084][ T70] ? __send_to_port (drivers/char/virtio_console.c:654) [ 76.916085][ T70] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 76.916089][ T70] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 76.916091][ T70] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 76.916097][ T70] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 76.916101][ T70] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 76.916106][ T70] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 76.916110][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 76.916114][ T70] console_emit_next_record (kernel/printk/printk.c:3183) [ 76.916119][ T70] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 76.916121][ T70] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 76.916124][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 76.916126][ T70] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 76.916130][ T70] console_flush_one_record (kernel/printk/printk.c:3268) [ 76.916135][ T70] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 76.916137][ T70] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 76.916142][ T70] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 76.916145][ T70] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 76.916147][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 76.916149][ T70] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 76.916153][ T70] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 76.916155][ T70] ? vprintk_emit (kernel/printk/printk.c:2478) [ 76.916158][ T70] vprintk_emit (kernel/printk/printk.c:2479) [ 76.916161][ T70] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 76.916162][ T70] ? cleanup_net (net/core/net_namespace.c:706) [ 76.916164][ T70] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 76.916166][ T70] ? kthread (kernel/kthread.c:436) [ 76.916168][ T70] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 76.916172][ T70] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 76.916176][ T70] _printk (kernel/printk/printk.c:2504) [ 76.916180][ T70] ? snapshot_read.cold (user.c:?) [ 76.916185][ T70] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 76.916189][ T70] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 76.916193][ T70] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 76.916196][ T70] ? netdev_notice (net/core/dev.c:13194) [ 76.916201][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 76.916202][ T70] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 76.916205][ T70] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 76.916207][ T70] ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65) [ 76.916210][ T70] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 76.916214][ T70] dev_set_allmulti (net/core/dev_api.c:315) [ 76.916217][ T70] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 76.916221][ T70] ? unregister_netdevice_many (net/core/dev.c:12589) [ 76.916223][ T70] ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2)) [ 76.916228][ T70] br_dev_delete (net/bridge/br_if.c:387) [ 76.916232][ T70] br_net_exit_rtnl (net/bridge/br.c:414) [ 76.916235][ T70] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 76.916239][ T70] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 76.916243][ T70] ? netns_install (./include/linux/ns_common.h:26) [ 76.916245][ T70] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 76.916248][ T70] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 76.916253][ T70] cleanup_net (net/core/net_namespace.c:706) [ 76.916256][ T70] ? net_passive_dec (./include/linux/llist.h:241) [ 76.916260][ T70] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 76.916262][ T70] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 76.916266][ T70] process_one_work (kernel/workqueue.c:3387) [ 76.916273][ T70] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 76.916276][ T70] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 76.916284][ T70] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 76.916288][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 76.916291][ T70] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 76.916293][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 76.916296][ T70] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 76.916298][ T70] kthread (kernel/kthread.c:436) [ 76.916300][ T70] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 76.916304][ T70] ? kthread_affine_preferred (kernel/kthread.c:857) [ 76.916307][ T70] ret_from_fork (arch/x86/kernel/process.c:158) [ 76.916309][ T70] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 76.916313][ T70] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 76.916316][ T70] ? 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