====================================== | [ 10.544217][ T243] softirqs last disabled at (19966): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 10.544220][ T243] Preemption disabled at: | [ 10.544220][ T243] vprintk_emit (kernel/printk/printk.c:2471) | [ 10.544228][ T243] Tainted: [W]=WARN [ 10.544229][ T243] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.544231][ T243] Call Trace: [ 10.544233][ T243] [ 10.544234][ T243] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.544240][ T243] ? vprintk_emit (kernel/printk/printk.c:2471) [ 10.544242][ T243] __might_resched.cold (kernel/sched/core.c:9234) [ 10.544246][ T243] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.544250][ T243] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.544254][ T243] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 10.544256][ T243] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.544263][ T243] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 10.544266][ T243] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.544269][ T243] put_chars (drivers/char/virtio_console.c:1176) [ 10.544272][ T243] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.544278][ T243] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.544285][ T243] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.544289][ T243] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.544293][ T243] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.544296][ T243] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.544298][ T243] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 10.544301][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.544304][ T243] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.544308][ T243] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.544312][ T243] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.544314][ T243] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.544319][ T243] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.544321][ T243] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.544323][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.544325][ T243] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 10.544328][ T243] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.544330][ T243] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.544333][ T243] vprintk_emit (kernel/printk/printk.c:2479) [ 10.544336][ T243] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.544338][ T243] ? save_trace (kernel/locking/lockdep.c:589) [ 10.544342][ T243] _printk (kernel/printk/printk.c:2504) [ 10.544345][ T243] ? snapshot_read.cold (user.c:?) [ 10.544349][ T243] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 10.544351][ T243] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 10.544354][ T243] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 10.544357][ T243] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.544359][ T243] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 10.544362][ T243] ? netdev_notice (net/core/dev.c:13194) [ 10.544364][ T243] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.544367][ T243] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.544370][ T243] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 10.544373][ T243] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.544375][ T243] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 10.544377][ T243] ? register_netdev (net/core/dev.c:11618) [ 10.544378][ T243] ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2)) [ 10.544383][ T243] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 10.544386][ T243] ? __kernel_text_address (kernel/extable.c:79) [ 10.544388][ T243] ? write_profile (profile.c:?) [ 10.544392][ T243] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 10.544398][ T243] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.544401][ T243] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 10.544403][ T243] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 10.544404][ T243] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 10.544407][ T243] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 10.544410][ T243] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.544412][ T243] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 10.544414][ T243] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.544416][ T243] ? kasan_save_stack (mm/kasan/common.c:58) [ 10.544418][ T243] ? kasan_save_stack (mm/kasan/common.c:57) [ 10.544419][ T243] ? kasan_save_track (mm/kasan/common.c:78) [ 10.544420][ T243] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 10.544422][ T243] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.544424][ T243] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 10.544427][ T243] ? ___sys_sendmsg (net/socket.c:2758) [ 10.544431][ T243] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.544433][ T243] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.544435][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.544437][ T243] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.544438][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.544439][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.544441][ T243] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 10.544443][ T243] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 10.544445][ T243] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 10.544447][ T243] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.544450][ T243] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 10.544452][ T243] ? nla_get_range_signed (lib/nlattr.c:270) [ 10.544456][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.544459][ T243] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 10.544464][ T243] rtnl_newlink (net/core/rtnetlink.c:4215) [ 10.544469][ T243] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.544470][ T243] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.544475][ T243] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.544477][ T243] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.544481][ T243] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.544483][ T243] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.544487][ T243] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.544489][ T243] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 10.544492][ T243] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.544493][ T243] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.544497][ T243] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.544499][ T243] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.544503][ T243] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 10.544506][ T243] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.544508][ T243] ? netlink_ack (./include/linux/skbuff.h:2718) [ 10.544515][ T243] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 10.544517][ T243] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 10.544521][ T243] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 10.544525][ T243] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 10.544527][ T243] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.544531][ T243] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 10.544535][ T243] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 10.544539][ T243] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.544540][ T243] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 10.544546][ T243] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 10.544548][ T243] ____sys_sendmsg (net/socket.c:2713) [ 10.544551][ T243] ? copy_msghdr_from_user (net/socket.c:2650) [ 10.544553][ T243] ? sock_write_iter (net/socket.c:1269) [ 10.544554][ T243] ? move_addr_to_kernel (net/socket.c:258) [ 10.544561][ T243] ___sys_sendmsg (net/socket.c:2767) [ 10.544564][ T243] ? copy_msghdr_from_user (net/socket.c:2619) [ 10.544579][ T243] __sys_sendmsg (net/socket.c:2799) [ 10.544582][ T243] ? __sys_sendmsg_sock (net/socket.c:2780) [ 10.544588][ T243] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.544591][ T243] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.544594][ T243] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.544597][ T243] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.544599][ T243] RIP: 0033:0x7fbb0327654e [ 10.544602][ T243] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 10.544604][ T243] RSP: 002b:00007ffc1cde2700 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 10.544606][ T243] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fbb0327654e [ 10.544608][ T243] RDX: 0000000000000000 RSI: 00007ffc1cde27b0 RDI: 0000000000000005 [ 10.544609][ T243] RBP: 00007ffc1cde2710 R08: 0000000000000000 R09: 0000000000000000 [ 10.544610][ T243] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a914239 [ 10.544610][ T243] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc1cde2e80 | [ 23.545064][ T12] softirqs last disabled at (10334): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 23.545066][ T12] Preemption disabled at: | [ 23.545066][ T12] vprintk_emit (kernel/printk/printk.c:2471) | [ 23.545074][ T12] Tainted: [W]=WARN [ 23.545075][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 23.545077][ T12] Workqueue: netns cleanup_net [ 23.545080][ T12] Call Trace: [ 23.545082][ T12] [ 23.545084][ T12] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 23.545090][ T12] ? vprintk_emit (kernel/printk/printk.c:2471) [ 23.545092][ T12] __might_resched.cold (kernel/sched/core.c:9234) [ 23.545096][ T12] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 23.545100][ T12] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 23.545104][ T12] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 23.545106][ T12] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.545114][ T12] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 23.545116][ T12] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.545120][ T12] put_chars (drivers/char/virtio_console.c:1176) [ 23.545123][ T12] ? __send_to_port (drivers/char/virtio_console.c:654) [ 23.545126][ T12] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 23.545131][ T12] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 23.545135][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.545140][ T12] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 23.545143][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.545149][ T12] console_emit_next_record (kernel/printk/printk.c:3183) [ 23.545153][ T12] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 23.545155][ T12] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 23.545158][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.545160][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.545164][ T12] console_flush_one_record (kernel/printk/printk.c:3268) [ 23.545168][ T12] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 23.545170][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.545176][ T12] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 23.545179][ T12] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 23.545180][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.545182][ T12] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 23.545186][ T12] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 23.545188][ T12] ? vprintk_emit (kernel/printk/printk.c:2478) [ 23.545190][ T12] vprintk_emit (kernel/printk/printk.c:2479) [ 23.545194][ T12] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 23.545195][ T12] ? cleanup_net (net/core/net_namespace.c:706) [ 23.545197][ T12] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 23.545198][ T12] ? kthread (kernel/kthread.c:436) [ 23.545201][ T12] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 23.545204][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 23.545208][ T12] _printk (kernel/printk/printk.c:2504) [ 23.545212][ T12] ? snapshot_read.cold (user.c:?) [ 23.545217][ T12] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 23.545221][ T12] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 23.545225][ T12] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 23.545227][ T12] ? netdev_notice (net/core/dev.c:13194) [ 23.545232][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.545234][ T12] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 23.545236][ T12] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 23.545238][ T12] ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65) [ 23.545241][ T12] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 23.545244][ T12] dev_set_allmulti (net/core/dev_api.c:315) [ 23.545248][ T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 23.545252][ T12] ? unregister_netdevice_many (net/core/dev.c:12589) [ 23.545253][ T12] ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2)) [ 23.545259][ T12] br_dev_delete (net/bridge/br_if.c:387) [ 23.545262][ T12] br_net_exit_rtnl (net/bridge/br.c:414) [ 23.545265][ T12] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 23.545269][ T12] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 23.545273][ T12] ? netns_install (./include/linux/ns_common.h:26) [ 23.545274][ T12] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 23.545277][ T12] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 23.545282][ T12] cleanup_net (net/core/net_namespace.c:706) [ 23.545285][ T12] ? net_passive_dec (./include/linux/llist.h:241) [ 23.545289][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.545291][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.545295][ T12] process_one_work (kernel/workqueue.c:3387) [ 23.545301][ T12] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 23.545305][ T12] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.545313][ T12] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 23.545320][ T12] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 23.545322][ T12] kthread (kernel/kthread.c:436) [ 23.545324][ T12] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 23.545327][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 23.545330][ T12] ret_from_fork (arch/x86/kernel/process.c:158) [ 23.545333][ T12] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 23.545336][ T12] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 23.545340][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 23.545343][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 25.714954][ T472] softirqs last disabled at (22358): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 25.714957][ T472] Preemption disabled at: | [ 25.714957][ T472] vprintk_emit (kernel/printk/printk.c:2471) | [ 25.714966][ T472] Tainted: [W]=WARN [ 25.714967][ T472] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 25.714968][ T472] Call Trace: [ 25.714970][ T472] [ 25.714971][ T472] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 25.714977][ T472] ? vprintk_emit (kernel/printk/printk.c:2471) [ 25.714979][ T472] __might_resched.cold (kernel/sched/core.c:9234) [ 25.714983][ T472] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 25.714987][ T472] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 25.714992][ T472] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 25.714994][ T472] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.715000][ T472] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 25.715003][ T472] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.715007][ T472] put_chars (drivers/char/virtio_console.c:1176) [ 25.715009][ T472] ? __send_to_port (drivers/char/virtio_console.c:654) [ 25.715016][ T472] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 25.715023][ T472] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 25.715026][ T472] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.715031][ T472] console_emit_next_record (kernel/printk/printk.c:3183) [ 25.715035][ T472] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 25.715037][ T472] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 25.715040][ T472] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.715043][ T472] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.715047][ T472] console_flush_one_record (kernel/printk/printk.c:3268) [ 25.715051][ T472] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 25.715053][ T472] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.715058][ T472] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 25.715061][ T472] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 25.715063][ T472] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.715065][ T472] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 25.715068][ T472] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 25.715070][ T472] ? vprintk_emit (kernel/printk/printk.c:2478) [ 25.715073][ T472] vprintk_emit (kernel/printk/printk.c:2479) [ 25.715076][ T472] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 25.715078][ T472] ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6)) [ 25.715084][ T472] _printk (kernel/printk/printk.c:2504) [ 25.715087][ T472] ? snapshot_read.cold (user.c:?) [ 25.715089][ T472] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 25.715091][ T472] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 25.715094][ T472] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 25.715096][ T472] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 25.715100][ T472] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 25.715102][ T472] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 25.715105][ T472] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 25.715107][ T472] ? netdev_notice (net/core/dev.c:13194) [ 25.715110][ T472] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.715113][ T472] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 25.715116][ T472] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 25.715119][ T472] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 25.715121][ T472] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 25.715124][ T472] ? register_netdev (net/core/dev.c:11618) [ 25.715125][ T472] ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2)) [ 25.715130][ T472] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 25.715133][ T472] ? __kernel_text_address (kernel/extable.c:79) [ 25.715135][ T472] ? write_profile (profile.c:?) [ 25.715139][ T472] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 25.715145][ T472] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 25.715148][ T472] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 25.715150][ T472] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 25.715152][ T472] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 25.715154][ T472] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 25.715157][ T472] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 25.715159][ T472] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 25.715161][ T472] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 25.715164][ T472] ? kasan_save_stack (mm/kasan/common.c:58) [ 25.715165][ T472] ? kasan_save_stack (mm/kasan/common.c:57) [ 25.715167][ T472] ? kasan_save_track (mm/kasan/common.c:78) [ 25.715168][ T472] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 25.715170][ T472] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.715172][ T472] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 25.715175][ T472] ? ___sys_sendmsg (net/socket.c:2758) [ 25.715179][ T472] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.715181][ T472] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 25.715184][ T472] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.715185][ T472] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.715187][ T472] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.715188][ T472] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.715190][ T472] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 25.715192][ T472] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 25.715193][ T472] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 25.715195][ T472] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 25.715198][ T472] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 25.715200][ T472] ? nla_get_range_signed (lib/nlattr.c:270) [ 25.715204][ T472] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.715207][ T472] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 25.715212][ T472] rtnl_newlink (net/core/rtnetlink.c:4215) [ 25.715217][ T472] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.715219][ T472] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.715224][ T472] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.715226][ T472] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.715228][ T472] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.715229][ T472] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 25.715233][ T472] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 25.715235][ T472] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 25.715238][ T472] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 25.715240][ T472] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.715244][ T472] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.715246][ T472] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.715249][ T472] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 25.715253][ T472] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 25.715255][ T472] ? netlink_ack (./include/linux/skbuff.h:2718) [ 25.715262][ T472] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 25.715264][ T472] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 25.715268][ T472] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 25.715272][ T472] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 25.715275][ T472] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 25.715279][ T472] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 25.715283][ T472] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 25.715287][ T472] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 25.715289][ T472] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 25.715294][ T472] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 25.715297][ T472] ____sys_sendmsg (net/socket.c:2713) [ 25.715299][ T472] ? copy_msghdr_from_user (net/socket.c:2650) [ 25.715301][ T472] ? sock_write_iter (net/socket.c:1269) [ 25.715303][ T472] ? move_addr_to_kernel (net/socket.c:258) [ 25.715311][ T472] ___sys_sendmsg (net/socket.c:2767) [ 25.715313][ T472] ? copy_msghdr_from_user (net/socket.c:2619) [ 25.715329][ T472] __sys_sendmsg (net/socket.c:2799) [ 25.715332][ T472] ? __sys_sendmsg_sock (net/socket.c:2780) [ 25.715339][ T472] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.715342][ T472] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 25.715345][ T472] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 25.715348][ T472] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 25.715350][ T472] RIP: 0033:0x7f6d49e5154e [ 25.715354][ T472] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 25.715356][ T472] RSP: 002b:00007ffe9eb46820 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 25.715358][ T472] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f6d49e5154e [ 25.715360][ T472] RDX: 0000000000000000 RSI: 00007ffe9eb468d0 RDI: 0000000000000005 [ 25.715361][ T472] RBP: 00007ffe9eb46830 R08: 0000000000000000 R09: 0000000000000000 [ 25.715362][ T472] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a914249 [ 25.715362][ T472] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe9eb46fa0 | [ 39.035960][ T12] softirqs last disabled at (167910): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 39.035963][ T12] Preemption disabled at: | [ 39.035963][ T12] vprintk_emit (kernel/printk/printk.c:2471) | [ 39.035972][ T12] Tainted: [W]=WARN [ 39.035973][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 39.035974][ T12] Workqueue: netns cleanup_net [ 39.035978][ T12] Call Trace: [ 39.035979][ T12] [ 39.035981][ T12] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 39.035987][ T12] ? vprintk_emit (kernel/printk/printk.c:2471) [ 39.035988][ T12] __might_resched.cold (kernel/sched/core.c:9234) [ 39.035993][ T12] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 39.035997][ T12] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 39.036001][ T12] __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)) [ 39.036003][ T12] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 39.036009][ T12] ? 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) [ 39.036012][ T12] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 39.036016][ T12] put_chars (drivers/char/virtio_console.c:1176) [ 39.036018][ T12] ? __send_to_port (drivers/char/virtio_console.c:654) [ 39.036020][ T12] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 39.036023][ T12] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 39.036026][ T12] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 39.036031][ T12] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 39.036035][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 39.036040][ T12] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 39.036044][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.036048][ T12] console_emit_next_record (kernel/printk/printk.c:3183) [ 39.036053][ T12] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 39.036054][ T12] ? 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)) [ 39.036058][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.036059][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 39.036063][ T12] console_flush_one_record (kernel/printk/printk.c:3268) [ 39.036068][ T12] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 39.036069][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 39.036075][ T12] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 39.036078][ T12] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 39.036080][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.036081][ T12] ? 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) [ 39.036085][ T12] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 39.036087][ T12] ? vprintk_emit (kernel/printk/printk.c:2478) [ 39.036090][ T12] vprintk_emit (kernel/printk/printk.c:2479) [ 39.036093][ T12] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 39.036094][ T12] ? cleanup_net (net/core/net_namespace.c:706) [ 39.036096][ T12] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 39.036098][ T12] ? kthread (kernel/kthread.c:436) [ 39.036100][ T12] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 39.036103][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 39.036108][ T12] _printk (kernel/printk/printk.c:2504) [ 39.036111][ T12] ? snapshot_read.cold (user.c:?) [ 39.036116][ T12] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 39.036119][ T12] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 39.036123][ T12] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 39.036126][ T12] ? netdev_notice (net/core/dev.c:13194) [ 39.036131][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.036132][ T12] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 39.036135][ T12] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 39.036137][ T12] ? 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) [ 39.036139][ T12] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 39.036143][ T12] dev_set_allmulti (net/core/dev_api.c:315) [ 39.036146][ T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 39.036150][ T12] ? unregister_netdevice_many (net/core/dev.c:12589) [ 39.036151][ T12] ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2)) [ 39.036156][ T12] br_dev_delete (net/bridge/br_if.c:387) [ 39.036160][ T12] br_net_exit_rtnl (net/bridge/br.c:414) [ 39.036163][ T12] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 39.036167][ T12] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 39.036170][ T12] ? netns_install (./include/linux/ns_common.h:26) [ 39.036172][ T12] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 39.036175][ T12] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 39.036180][ T12] cleanup_net (net/core/net_namespace.c:706) [ 39.036183][ T12] ? net_passive_dec (./include/linux/llist.h:241) [ 39.036186][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 39.036188][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.036192][ T12] process_one_work (kernel/workqueue.c:3387) [ 39.036198][ T12] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 39.036201][ T12] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 39.036209][ T12] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 39.036216][ T12] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 39.036218][ T12] kthread (kernel/kthread.c:436) [ 39.036219][ T12] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 39.036223][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 39.036226][ T12] ret_from_fork (arch/x86/kernel/process.c:158) [ 39.036228][ T12] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 39.036232][ T12] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 39.036235][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 39.036238][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 41.317951][ T711] softirqs last disabled at (24906): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 41.317953][ T711] Preemption disabled at: | [ 41.317954][ T711] vprintk_emit (kernel/printk/printk.c:2471) | [ 41.317962][ T711] Tainted: [W]=WARN [ 41.317963][ T711] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 41.317964][ T711] Call Trace: [ 41.317966][ T711] [ 41.317967][ T711] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 41.317973][ T711] ? vprintk_emit (kernel/printk/printk.c:2471) [ 41.317975][ T711] __might_resched.cold (kernel/sched/core.c:9234) [ 41.317979][ T711] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 41.317984][ T711] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 41.317988][ T711] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 41.317990][ T711] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 41.317996][ T711] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 41.317999][ T711] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 41.318003][ T711] put_chars (drivers/char/virtio_console.c:1176) [ 41.318005][ T711] ? __send_to_port (drivers/char/virtio_console.c:654) [ 41.318012][ T711] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 41.318019][ T711] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 41.318022][ T711] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 41.318027][ T711] console_emit_next_record (kernel/printk/printk.c:3183) [ 41.318031][ T711] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 41.318033][ T711] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 41.318036][ T711] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 41.318039][ T711] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 41.318042][ T711] console_flush_one_record (kernel/printk/printk.c:3268) [ 41.318047][ T711] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 41.318048][ T711] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 41.318054][ T711] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 41.318056][ T711] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 41.318058][ T711] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 41.318060][ T711] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 41.318064][ T711] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 41.318065][ T711] ? vprintk_emit (kernel/printk/printk.c:2478) [ 41.318068][ T711] vprintk_emit (kernel/printk/printk.c:2479) [ 41.318071][ T711] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 41.318074][ T711] ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6)) [ 41.318079][ T711] _printk (kernel/printk/printk.c:2504) [ 41.318082][ T711] ? snapshot_read.cold (user.c:?) [ 41.318084][ T711] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 41.318086][ T711] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 41.318089][ T711] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 41.318091][ T711] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 41.318095][ T711] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 41.318097][ T711] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 41.318100][ T711] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 41.318102][ T711] ? netdev_notice (net/core/dev.c:13194) [ 41.318105][ T711] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 41.318108][ T711] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 41.318111][ T711] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 41.318114][ T711] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 41.318116][ T711] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 41.318118][ T711] ? register_netdev (net/core/dev.c:11618) [ 41.318119][ T711] ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2)) [ 41.318125][ T711] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 41.318127][ T711] ? __kernel_text_address (kernel/extable.c:79) [ 41.318130][ T711] ? write_profile (profile.c:?) [ 41.318133][ T711] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 41.318139][ T711] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 41.318142][ T711] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 41.318144][ T711] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 41.318146][ T711] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 41.318147][ T711] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 41.318151][ T711] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 41.318153][ T711] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 41.318154][ T711] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 41.318157][ T711] ? kasan_save_stack (mm/kasan/common.c:58) [ 41.318159][ T711] ? kasan_save_stack (mm/kasan/common.c:57) [ 41.318160][ T711] ? kasan_save_track (mm/kasan/common.c:78) [ 41.318161][ T711] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 41.318163][ T711] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 41.318165][ T711] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 41.318168][ T711] ? ___sys_sendmsg (net/socket.c:2758) [ 41.318172][ T711] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 41.318174][ T711] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 41.318177][ T711] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 41.318178][ T711] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 41.318180][ T711] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 41.318181][ T711] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 41.318183][ T711] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 41.318185][ T711] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 41.318186][ T711] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 41.318188][ T711] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 41.318192][ T711] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 41.318193][ T711] ? nla_get_range_signed (lib/nlattr.c:270) [ 41.318198][ T711] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 41.318200][ T711] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 41.318205][ T711] rtnl_newlink (net/core/rtnetlink.c:4215) [ 41.318210][ T711] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 41.318212][ T711] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 41.318216][ T711] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 41.318218][ T711] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 41.318220][ T711] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 41.318222][ T711] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 41.318226][ T711] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 41.318228][ T711] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 41.318231][ T711] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 41.318232][ T711] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 41.318237][ T711] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 41.318238][ T711] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 41.318242][ T711] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 41.318245][ T711] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 41.318248][ T711] ? netlink_ack (./include/linux/skbuff.h:2718) [ 41.318254][ T711] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 41.318256][ T711] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 41.318261][ T711] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 41.318264][ T711] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 41.318267][ T711] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 41.318271][ T711] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 41.318275][ T711] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 41.318279][ T711] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 41.318280][ T711] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 41.318286][ T711] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 41.318288][ T711] ____sys_sendmsg (net/socket.c:2713) [ 41.318291][ T711] ? copy_msghdr_from_user (net/socket.c:2650) [ 41.318293][ T711] ? sock_write_iter (net/socket.c:1269) [ 41.318294][ T711] ? move_addr_to_kernel (net/socket.c:258) [ 41.318301][ T711] ___sys_sendmsg (net/socket.c:2767) [ 41.318304][ T711] ? copy_msghdr_from_user (net/socket.c:2619) [ 41.318320][ T711] __sys_sendmsg (net/socket.c:2799) [ 41.318323][ T711] ? __sys_sendmsg_sock (net/socket.c:2780) [ 41.318329][ T711] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 41.318332][ T711] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 41.318334][ T711] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 41.318337][ T711] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 41.318339][ T711] RIP: 0033:0x7f0d5ab8d54e [ 41.318343][ T711] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 41.318345][ T711] RSP: 002b:00007fff1c713fc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 41.318348][ T711] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f0d5ab8d54e [ 41.318349][ T711] RDX: 0000000000000000 RSI: 00007fff1c714070 RDI: 0000000000000005 [ 41.318350][ T711] RBP: 00007fff1c713fd0 R08: 0000000000000000 R09: 0000000000000000 [ 41.318351][ T711] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a914258 [ 41.318351][ T711] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff1c714740 | [ 54.421088][ T12] softirqs last disabled at (333520): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 54.421090][ T12] Preemption disabled at: | [ 54.421091][ T12] vprintk_emit (kernel/printk/printk.c:2471) | [ 54.421099][ T12] Tainted: [W]=WARN [ 54.421100][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 54.421101][ T12] Workqueue: netns cleanup_net [ 54.421105][ T12] Call Trace: [ 54.421106][ T12] [ 54.421108][ T12] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 54.421114][ T12] ? vprintk_emit (kernel/printk/printk.c:2471) [ 54.421116][ T12] __might_resched.cold (kernel/sched/core.c:9234) [ 54.421120][ T12] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 54.421124][ T12] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 54.421128][ T12] __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)) [ 54.421130][ T12] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 54.421137][ T12] ? 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) [ 54.421140][ T12] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 54.421143][ T12] put_chars (drivers/char/virtio_console.c:1176) [ 54.421146][ T12] ? __send_to_port (drivers/char/virtio_console.c:654) [ 54.421147][ T12] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 54.421151][ T12] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 54.421154][ T12] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 54.421159][ T12] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 54.421162][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 54.421168][ T12] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 54.421171][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 54.421176][ T12] console_emit_next_record (kernel/printk/printk.c:3183) [ 54.421180][ T12] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 54.421182][ T12] ? 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)) [ 54.421185][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 54.421187][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 54.421191][ T12] console_flush_one_record (kernel/printk/printk.c:3268) [ 54.421195][ T12] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 54.421197][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 54.421203][ T12] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 54.421206][ T12] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 54.421208][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 54.421209][ T12] ? 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) [ 54.421213][ T12] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 54.421215][ T12] ? vprintk_emit (kernel/printk/printk.c:2478) [ 54.421218][ T12] vprintk_emit (kernel/printk/printk.c:2479) [ 54.421221][ T12] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 54.421222][ T12] ? cleanup_net (net/core/net_namespace.c:706) [ 54.421224][ T12] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 54.421226][ T12] ? kthread (kernel/kthread.c:436) [ 54.421229][ T12] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 54.421232][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 54.421236][ T12] _printk (kernel/printk/printk.c:2504) [ 54.421240][ T12] ? snapshot_read.cold (user.c:?) [ 54.421245][ T12] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 54.421248][ T12] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 54.421252][ T12] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 54.421255][ T12] ? netdev_notice (net/core/dev.c:13194) [ 54.421259][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 54.421261][ T12] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 54.421264][ T12] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 54.421266][ T12] ? 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) [ 54.421268][ T12] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 54.421272][ T12] dev_set_allmulti (net/core/dev_api.c:315) [ 54.421276][ T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 54.421280][ T12] ? unregister_netdevice_many (net/core/dev.c:12589) [ 54.421281][ T12] ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2)) [ 54.421286][ T12] br_dev_delete (net/bridge/br_if.c:387) [ 54.421290][ T12] br_net_exit_rtnl (net/bridge/br.c:414) [ 54.421293][ T12] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 54.421297][ T12] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 54.421301][ T12] ? netns_install (./include/linux/ns_common.h:26) [ 54.421303][ T12] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 54.421306][ T12] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 54.421311][ T12] cleanup_net (net/core/net_namespace.c:706) [ 54.421314][ T12] ? net_passive_dec (./include/linux/llist.h:241) [ 54.421318][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 54.421320][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 54.421324][ T12] process_one_work (kernel/workqueue.c:3387) [ 54.421330][ T12] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 54.421333][ T12] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 54.421341][ T12] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 54.421348][ T12] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 54.421350][ T12] kthread (kernel/kthread.c:436) [ 54.421352][ T12] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 54.421355][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 54.421358][ T12] ret_from_fork (arch/x86/kernel/process.c:158) [ 54.421361][ T12] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 54.421364][ T12] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 54.421368][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 54.421370][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 56.683205][ T951] softirqs last disabled at (22842): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 56.683208][ T951] Preemption disabled at: | [ 56.683209][ T951] vprintk_emit (kernel/printk/printk.c:2471) | [ 56.683217][ T951] Tainted: [W]=WARN [ 56.683218][ T951] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 56.683219][ T951] Call Trace: [ 56.683221][ T951] [ 56.683222][ T951] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 56.683228][ T951] ? vprintk_emit (kernel/printk/printk.c:2471) [ 56.683230][ T951] __might_resched.cold (kernel/sched/core.c:9234) [ 56.683234][ T951] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 56.683238][ T951] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 56.683243][ T951] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 56.683244][ T951] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 56.683251][ T951] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 56.683254][ T951] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 56.683258][ T951] put_chars (drivers/char/virtio_console.c:1176) [ 56.683260][ T951] ? __send_to_port (drivers/char/virtio_console.c:654) [ 56.683266][ T951] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 56.683274][ T951] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 56.683277][ T951] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 56.683282][ T951] console_emit_next_record (kernel/printk/printk.c:3183) [ 56.683286][ T951] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 56.683287][ T951] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 56.683291][ T951] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 56.683293][ T951] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 56.683297][ T951] console_flush_one_record (kernel/printk/printk.c:3268) [ 56.683301][ T951] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 56.683303][ T951] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 56.683309][ T951] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 56.683311][ T951] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 56.683313][ T951] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 56.683315][ T951] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 56.683318][ T951] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 56.683320][ T951] ? vprintk_emit (kernel/printk/printk.c:2478) [ 56.683323][ T951] vprintk_emit (kernel/printk/printk.c:2479) [ 56.683326][ T951] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 56.683328][ T951] ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6)) [ 56.683334][ T951] _printk (kernel/printk/printk.c:2504) [ 56.683337][ T951] ? snapshot_read.cold (user.c:?) [ 56.683338][ T951] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 56.683341][ T951] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 56.683344][ T951] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 56.683346][ T951] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 56.683350][ T951] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 56.683353][ T951] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 56.683355][ T951] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 56.683357][ T951] ? netdev_notice (net/core/dev.c:13194) [ 56.683360][ T951] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 56.683363][ T951] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 56.683366][ T951] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 56.683369][ T951] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 56.683371][ T951] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 56.683373][ T951] ? register_netdev (net/core/dev.c:11618) [ 56.683375][ T951] ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2)) [ 56.683380][ T951] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 56.683382][ T951] ? __kernel_text_address (kernel/extable.c:79) [ 56.683385][ T951] ? write_profile (profile.c:?) [ 56.683389][ T951] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 56.683394][ T951] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 56.683398][ T951] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 56.683400][ T951] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 56.683401][ T951] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 56.683403][ T951] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 56.683406][ T951] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 56.683408][ T951] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 56.683410][ T951] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 56.683412][ T951] ? kasan_save_stack (mm/kasan/common.c:58) [ 56.683414][ T951] ? kasan_save_stack (mm/kasan/common.c:57) [ 56.683415][ T951] ? kasan_save_track (mm/kasan/common.c:78) [ 56.683416][ T951] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 56.683419][ T951] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 56.683421][ T951] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 56.683424][ T951] ? ___sys_sendmsg (net/socket.c:2758) [ 56.683428][ T951] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 56.683430][ T951] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 56.683432][ T951] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 56.683434][ T951] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 56.683435][ T951] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 56.683436][ T951] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 56.683438][ T951] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 56.683440][ T951] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 56.683441][ T951] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 56.683443][ T951] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 56.683446][ T951] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 56.683448][ T951] ? nla_get_range_signed (lib/nlattr.c:270) [ 56.683452][ T951] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 56.683454][ T951] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 56.683459][ T951] rtnl_newlink (net/core/rtnetlink.c:4215) [ 56.683465][ T951] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 56.683466][ T951] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 56.683471][ T951] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 56.683473][ T951] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 56.683475][ T951] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 56.683476][ T951] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 56.683483][ T951] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 56.683485][ T951] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 56.683488][ T951] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 56.683489][ T951] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 56.683493][ T951] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 56.683495][ T951] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 56.683498][ T951] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 56.683502][ T951] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 56.683504][ T951] ? netlink_ack (./include/linux/skbuff.h:2718) [ 56.683511][ T951] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 56.683513][ T951] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 56.683517][ T951] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 56.683521][ T951] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 56.683523][ T951] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 56.683527][ T951] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 56.683531][ T951] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 56.683535][ T951] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 56.683536][ T951] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 56.683542][ T951] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 56.683544][ T951] ____sys_sendmsg (net/socket.c:2713) [ 56.683546][ T951] ? copy_msghdr_from_user (net/socket.c:2650) [ 56.683549][ T951] ? sock_write_iter (net/socket.c:1269) [ 56.683550][ T951] ? move_addr_to_kernel (net/socket.c:258) [ 56.683557][ T951] ___sys_sendmsg (net/socket.c:2767) [ 56.683560][ T951] ? copy_msghdr_from_user (net/socket.c:2619) [ 56.683575][ T951] __sys_sendmsg (net/socket.c:2799) [ 56.683578][ T951] ? __sys_sendmsg_sock (net/socket.c:2780) [ 56.683584][ T951] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 56.683587][ T951] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 56.683590][ T951] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 56.683593][ T951] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 56.683595][ T951] RIP: 0033:0x7f319853054e [ 56.683598][ T951] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 56.683600][ T951] RSP: 002b:00007ffceeaab820 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 56.683603][ T951] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f319853054e [ 56.683604][ T951] RDX: 0000000000000000 RSI: 00007ffceeaab8d0 RDI: 0000000000000005 [ 56.683605][ T951] RBP: 00007ffceeaab830 R08: 0000000000000000 R09: 0000000000000000 [ 56.683605][ T951] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a914268 [ 56.683606][ T951] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffceeaabfa0 | [ 70.117712][ T12] softirqs last disabled at (499020): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 70.117715][ T12] Preemption disabled at: | [ 70.117716][ T12] vprintk_emit (kernel/printk/printk.c:2471) | [ 70.117724][ T12] Tainted: [W]=WARN [ 70.117725][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 70.117726][ T12] Workqueue: netns cleanup_net [ 70.117729][ T12] Call Trace: [ 70.117731][ T12] [ 70.117733][ T12] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 70.117739][ T12] ? vprintk_emit (kernel/printk/printk.c:2471) [ 70.117741][ T12] __might_resched.cold (kernel/sched/core.c:9234) [ 70.117745][ T12] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 70.117749][ T12] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 70.117753][ T12] __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)) [ 70.117755][ T12] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 70.117762][ T12] ? 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) [ 70.117765][ T12] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 70.117769][ T12] put_chars (drivers/char/virtio_console.c:1176) [ 70.117771][ T12] ? __send_to_port (drivers/char/virtio_console.c:654) [ 70.117772][ T12] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 70.117776][ T12] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 70.117779][ T12] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 70.117784][ T12] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 70.117788][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 70.117794][ T12] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 70.117797][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 70.117802][ T12] console_emit_next_record (kernel/printk/printk.c:3183) [ 70.117806][ T12] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 70.117808][ T12] ? 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)) [ 70.117811][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 70.117813][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 70.117817][ T12] console_flush_one_record (kernel/printk/printk.c:3268) [ 70.117821][ T12] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 70.117823][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 70.117828][ T12] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 70.117831][ T12] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 70.117833][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 70.117835][ T12] ? 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) [ 70.117839][ T12] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 70.117840][ T12] ? vprintk_emit (kernel/printk/printk.c:2478) [ 70.117843][ T12] vprintk_emit (kernel/printk/printk.c:2479) [ 70.117846][ T12] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 70.117848][ T12] ? cleanup_net (net/core/net_namespace.c:706) [ 70.117850][ T12] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 70.117851][ T12] ? kthread (kernel/kthread.c:436) [ 70.117854][ T12] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 70.117857][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 70.117862][ T12] _printk (kernel/printk/printk.c:2504) [ 70.117865][ T12] ? snapshot_read.cold (user.c:?) [ 70.117870][ T12] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 70.117874][ T12] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 70.117878][ T12] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 70.117880][ T12] ? netdev_notice (net/core/dev.c:13194) [ 70.117885][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 70.117887][ T12] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 70.117889][ T12] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 70.117891][ T12] ? 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) [ 70.117894][ T12] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 70.117898][ T12] dev_set_allmulti (net/core/dev_api.c:315) [ 70.117901][ T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 70.117904][ T12] ? unregister_netdevice_many (net/core/dev.c:12589) [ 70.117906][ T12] ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2)) [ 70.117911][ T12] br_dev_delete (net/bridge/br_if.c:387) [ 70.117915][ T12] br_net_exit_rtnl (net/bridge/br.c:414) [ 70.117918][ T12] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 70.117922][ T12] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 70.117926][ T12] ? netns_install (./include/linux/ns_common.h:26) [ 70.117927][ T12] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 70.117930][ T12] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 70.117935][ T12] cleanup_net (net/core/net_namespace.c:706) [ 70.117938][ T12] ? net_passive_dec (./include/linux/llist.h:241) [ 70.117942][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 70.117944][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 70.117947][ T12] process_one_work (kernel/workqueue.c:3387) [ 70.117954][ T12] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 70.117957][ T12] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 70.117965][ T12] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 70.117972][ T12] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 70.117974][ T12] kthread (kernel/kthread.c:436) [ 70.117976][ T12] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 70.117979][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 70.117982][ T12] ret_from_fork (arch/x86/kernel/process.c:158) [ 70.117985][ T12] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 70.117988][ T12] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 70.117992][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) Finger prints: netlink_release:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars