====================================== | [ 10.957403][ T244] softirqs last disabled at (31262): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 10.957405][ T244] Preemption disabled at: | [ 10.957406][ T244] vprintk_emit (kernel/printk/printk.c:2471) | [ 10.957414][ T244] Tainted: [W]=WARN [ 10.957415][ T244] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.957416][ T244] Call Trace: [ 10.957418][ T244] [ 10.957419][ T244] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.957425][ T244] ? vprintk_emit (kernel/printk/printk.c:2471) [ 10.957426][ T244] __might_resched.cold (kernel/sched/core.c:9234) [ 10.957431][ T244] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.957435][ T244] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.957439][ T244] __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)) [ 10.957441][ T244] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.957448][ T244] ? 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) [ 10.957450][ T244] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.957454][ T244] put_chars (drivers/char/virtio_console.c:1176) [ 10.957456][ T244] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.957462][ T244] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.957470][ T244] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.957473][ T244] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.957477][ T244] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.957480][ T244] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.957482][ T244] ? 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)) [ 10.957485][ T244] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.957488][ T244] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.957491][ T244] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.957495][ T244] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.957497][ T244] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.957502][ T244] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.957505][ T244] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.957507][ T244] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.957508][ T244] ? 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) [ 10.957512][ T244] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.957514][ T244] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.957516][ T244] vprintk_emit (kernel/printk/printk.c:2479) [ 10.957519][ T244] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.957521][ T244] ? save_trace (kernel/locking/lockdep.c:589) [ 10.957525][ T244] _printk (kernel/printk/printk.c:2504) [ 10.957529][ T244] ? snapshot_read.cold (user.c:?) [ 10.957532][ T244] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 10.957534][ T244] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 10.957538][ T244] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 10.957541][ T244] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.957543][ T244] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 10.957545][ T244] ? netdev_notice (net/core/dev.c:13194) [ 10.957548][ T244] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.957551][ T244] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.957553][ T244] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 10.957557][ T244] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.957559][ T244] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 10.957560][ T244] ? register_netdev (net/core/dev.c:11618) [ 10.957562][ T244] ? 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)) [ 10.957567][ T244] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 10.957569][ T244] ? __kernel_text_address (kernel/extable.c:79) [ 10.957572][ T244] ? write_profile (profile.c:?) [ 10.957576][ T244] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 10.957584][ T244] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.957588][ T244] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 10.957590][ T244] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 10.957591][ T244] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 10.957594][ T244] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 10.957597][ T244] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.957599][ T244] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 10.957601][ T244] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.957603][ T244] ? kasan_save_stack (mm/kasan/common.c:58) [ 10.957605][ T244] ? kasan_save_stack (mm/kasan/common.c:57) [ 10.957606][ T244] ? kasan_save_track (mm/kasan/common.c:78) [ 10.957608][ T244] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 10.957610][ T244] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.957612][ T244] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 10.957615][ T244] ? ___sys_sendmsg (net/socket.c:2758) [ 10.957619][ T244] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.957621][ T244] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.957623][ T244] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.957625][ T244] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.957626][ T244] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.957627][ T244] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.957629][ T244] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 10.957631][ T244] ? __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) [ 10.957634][ T244] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 10.957636][ T244] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.957639][ T244] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 10.957640][ T244] ? nla_get_range_signed (lib/nlattr.c:270) [ 10.957645][ T244] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.957647][ T244] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 10.957652][ T244] rtnl_newlink (net/core/rtnetlink.c:4215) [ 10.957657][ T244] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.957659][ T244] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.957663][ T244] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.957665][ T244] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.957667][ T244] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.957669][ T244] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.957672][ T244] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.957674][ T244] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 10.957677][ T244] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.957679][ T244] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.957683][ T244] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.957685][ T244] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.957688][ T244] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 10.957691][ T244] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.957694][ T244] ? netlink_ack (./include/linux/skbuff.h:2718) [ 10.957700][ T244] ? 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)) [ 10.957702][ T244] ? 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)) [ 10.957707][ T244] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 10.957710][ T244] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 10.957713][ T244] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.957717][ T244] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 10.957721][ T244] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 10.957724][ T244] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.957726][ T244] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 10.957731][ T244] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 10.957734][ T244] ____sys_sendmsg (net/socket.c:2713) [ 10.957736][ T244] ? copy_msghdr_from_user (net/socket.c:2650) [ 10.957738][ T244] ? sock_write_iter (net/socket.c:1269) [ 10.957740][ T244] ? move_addr_to_kernel (net/socket.c:258) [ 10.957747][ T244] ___sys_sendmsg (net/socket.c:2767) [ 10.957749][ T244] ? copy_msghdr_from_user (net/socket.c:2619) [ 10.957765][ T244] __sys_sendmsg (net/socket.c:2799) [ 10.957767][ T244] ? __sys_sendmsg_sock (net/socket.c:2780) [ 10.957773][ T244] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.957776][ T244] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.957779][ T244] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.957782][ T244] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.957784][ T244] RIP: 0033:0x7fbe5498654e [ 10.957788][ T244] 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 [ 10.957790][ T244] RSP: 002b:00007ffc29e78fc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 10.957792][ T244] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fbe5498654e [ 10.957794][ T244] RDX: 0000000000000000 RSI: 00007ffc29e79070 RDI: 0000000000000005 [ 10.957795][ T244] RBP: 00007ffc29e78fd0 R08: 0000000000000000 R09: 0000000000000000 [ 10.957795][ T244] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a916e06 [ 10.957796][ T244] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc29e79740 | [ 24.059647][ T12] softirqs last disabled at (16562): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 24.059649][ T12] Preemption disabled at: | [ 24.059650][ T12] vprintk_emit (kernel/printk/printk.c:2471) | [ 24.059658][ T12] Tainted: [W]=WARN [ 24.059659][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 24.059661][ T12] Workqueue: netns cleanup_net [ 24.059664][ T12] Call Trace: [ 24.059665][ T12] [ 24.059667][ T12] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 24.059673][ T12] ? vprintk_emit (kernel/printk/printk.c:2471) [ 24.059675][ T12] __might_resched.cold (kernel/sched/core.c:9234) [ 24.059679][ T12] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 24.059683][ 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) [ 24.059688][ 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)) [ 24.059689][ T12] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 24.059696][ 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) [ 24.059699][ T12] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 24.059702][ T12] put_chars (drivers/char/virtio_console.c:1176) [ 24.059705][ T12] ? __send_to_port (drivers/char/virtio_console.c:654) [ 24.059708][ T12] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 24.059713][ T12] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 24.059717][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.059722][ T12] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 24.059725][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.059730][ T12] console_emit_next_record (kernel/printk/printk.c:3183) [ 24.059735][ T12] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 24.059736][ 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)) [ 24.059740][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.059742][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.059746][ T12] console_flush_one_record (kernel/printk/printk.c:3268) [ 24.059750][ T12] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 24.059752][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.059757][ T12] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 24.059760][ T12] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 24.059762][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.059764][ 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) [ 24.059767][ T12] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 24.059769][ T12] ? vprintk_emit (kernel/printk/printk.c:2478) [ 24.059772][ T12] vprintk_emit (kernel/printk/printk.c:2479) [ 24.059775][ T12] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 24.059777][ T12] ? cleanup_net (net/core/net_namespace.c:706) [ 24.059778][ T12] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 24.059780][ T12] ? kthread (kernel/kthread.c:436) [ 24.059783][ T12] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 24.059786][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 24.059790][ T12] _printk (kernel/printk/printk.c:2504) [ 24.059794][ T12] ? snapshot_read.cold (user.c:?) [ 24.059798][ T12] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 24.059802][ T12] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 24.059806][ T12] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 24.059809][ T12] ? netdev_notice (net/core/dev.c:13194) [ 24.059814][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.059816][ T12] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 24.059818][ T12] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 24.059820][ 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) [ 24.059822][ T12] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 24.059826][ T12] dev_set_allmulti (net/core/dev_api.c:315) [ 24.059830][ T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 24.059834][ T12] ? unregister_netdevice_many (net/core/dev.c:12589) [ 24.059835][ 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)) [ 24.059840][ T12] br_dev_delete (net/bridge/br_if.c:387) [ 24.059844][ T12] br_net_exit_rtnl (net/bridge/br.c:414) [ 24.059847][ T12] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 24.059851][ T12] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 24.059855][ T12] ? netns_install (./include/linux/ns_common.h:26) [ 24.059856][ T12] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 24.059859][ T12] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 24.059864][ T12] cleanup_net (net/core/net_namespace.c:706) [ 24.059867][ T12] ? net_passive_dec (./include/linux/llist.h:241) [ 24.059871][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.059873][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.059877][ T12] process_one_work (kernel/workqueue.c:3387) [ 24.059883][ T12] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 24.059886][ T12] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 24.059894][ T12] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 24.059901][ T12] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 24.059903][ T12] kthread (kernel/kthread.c:436) [ 24.059905][ T12] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 24.059908][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 24.059911][ T12] ret_from_fork (arch/x86/kernel/process.c:158) [ 24.059914][ T12] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 24.059917][ T12] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 24.059920][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 24.059923][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 26.335204][ T473] softirqs last disabled at (21050): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 26.335206][ T473] Preemption disabled at: | [ 26.335207][ T473] vprintk_emit (kernel/printk/printk.c:2471) | [ 26.335215][ T473] Tainted: [W]=WARN [ 26.335216][ T473] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 26.335218][ T473] Call Trace: [ 26.335219][ T473] [ 26.335221][ T473] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 26.335227][ T473] ? vprintk_emit (kernel/printk/printk.c:2471) [ 26.335228][ T473] __might_resched.cold (kernel/sched/core.c:9234) [ 26.335232][ T473] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 26.335237][ T473] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 26.335241][ T473] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 26.335243][ T473] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 26.335249][ T473] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 26.335252][ T473] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 26.335255][ T473] put_chars (drivers/char/virtio_console.c:1176) [ 26.335258][ T473] ? __send_to_port (drivers/char/virtio_console.c:654) [ 26.335264][ T473] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 26.335271][ T473] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 26.335275][ T473] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.335279][ T473] console_emit_next_record (kernel/printk/printk.c:3183) [ 26.335283][ T473] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 26.335285][ T473] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 26.335288][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.335291][ T473] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.335295][ T473] console_flush_one_record (kernel/printk/printk.c:3268) [ 26.335299][ T473] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 26.335301][ T473] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.335306][ T473] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 26.335309][ T473] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 26.335310][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.335312][ T473] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 26.335316][ T473] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 26.335317][ T473] ? vprintk_emit (kernel/printk/printk.c:2478) [ 26.335320][ T473] vprintk_emit (kernel/printk/printk.c:2479) [ 26.335323][ T473] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 26.335326][ T473] ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6)) [ 26.335331][ T473] _printk (kernel/printk/printk.c:2504) [ 26.335335][ T473] ? snapshot_read.cold (user.c:?) [ 26.335336][ T473] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 26.335339][ T473] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 26.335342][ T473] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 26.335344][ T473] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 26.335347][ T473] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 26.335350][ T473] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 26.335352][ T473] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 26.335355][ T473] ? netdev_notice (net/core/dev.c:13194) [ 26.335358][ T473] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.335361][ T473] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 26.335363][ T473] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 26.335367][ T473] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 26.335369][ T473] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 26.335371][ T473] ? register_netdev (net/core/dev.c:11618) [ 26.335372][ T473] ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2)) [ 26.335378][ T473] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 26.335380][ T473] ? __kernel_text_address (kernel/extable.c:79) [ 26.335383][ T473] ? write_profile (profile.c:?) [ 26.335387][ T473] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 26.335392][ T473] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 26.335396][ T473] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 26.335398][ T473] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 26.335399][ T473] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 26.335401][ T473] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 26.335404][ T473] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 26.335406][ T473] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 26.335407][ T473] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 26.335410][ T473] ? kasan_save_stack (mm/kasan/common.c:58) [ 26.335412][ T473] ? kasan_save_stack (mm/kasan/common.c:57) [ 26.335413][ T473] ? kasan_save_track (mm/kasan/common.c:78) [ 26.335414][ T473] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 26.335416][ T473] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.335418][ T473] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 26.335421][ T473] ? ___sys_sendmsg (net/socket.c:2758) [ 26.335425][ T473] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.335427][ T473] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 26.335429][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.335431][ T473] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.335432][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.335434][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.335435][ T473] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 26.335437][ T473] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 26.335438][ T473] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 26.335440][ T473] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 26.335444][ T473] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 26.335445][ T473] ? nla_get_range_signed (lib/nlattr.c:270) [ 26.335450][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.335452][ T473] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 26.335457][ T473] rtnl_newlink (net/core/rtnetlink.c:4215) [ 26.335462][ T473] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.335464][ T473] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.335469][ T473] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.335471][ T473] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.335472][ T473] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.335474][ T473] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 26.335478][ T473] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.335480][ T473] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 26.335483][ T473] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 26.335484][ T473] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.335489][ T473] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.335491][ T473] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.335494][ T473] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 26.335497][ T473] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 26.335500][ T473] ? netlink_ack (./include/linux/skbuff.h:2718) [ 26.335506][ T473] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 26.335508][ T473] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 26.335513][ T473] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 26.335517][ T473] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 26.335519][ T473] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.335523][ T473] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 26.335527][ T473] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 26.335531][ T473] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 26.335533][ T473] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 26.335538][ T473] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 26.335541][ T473] ____sys_sendmsg (net/socket.c:2713) [ 26.335543][ T473] ? copy_msghdr_from_user (net/socket.c:2650) [ 26.335545][ T473] ? sock_write_iter (net/socket.c:1269) [ 26.335547][ T473] ? move_addr_to_kernel (net/socket.c:258) [ 26.335554][ T473] ___sys_sendmsg (net/socket.c:2767) [ 26.335557][ T473] ? copy_msghdr_from_user (net/socket.c:2619) [ 26.335573][ T473] __sys_sendmsg (net/socket.c:2799) [ 26.335576][ T473] ? __sys_sendmsg_sock (net/socket.c:2780) [ 26.335585][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.335588][ T473] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 26.335591][ T473] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 26.335594][ T473] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 26.335596][ T473] RIP: 0033:0x7f24e10de54e [ 26.335600][ T473] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 26.335602][ T473] RSP: 002b:00007ffc2fb1ffb0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 26.335604][ T473] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f24e10de54e [ 26.335606][ T473] RDX: 0000000000000000 RSI: 00007ffc2fb20060 RDI: 0000000000000005 [ 26.335606][ T473] RBP: 00007ffc2fb1ffc0 R08: 0000000000000000 R09: 0000000000000000 [ 26.335607][ T473] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a916e15 [ 26.335608][ T473] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc2fb20730 | [ 39.744340][ T12] softirqs last disabled at (188524): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 39.744343][ T12] Preemption disabled at: | [ 39.744343][ T12] vprintk_emit (kernel/printk/printk.c:2471) | [ 39.744351][ T12] Tainted: [W]=WARN [ 39.744352][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 39.744354][ T12] Workqueue: netns cleanup_net [ 39.744357][ T12] Call Trace: [ 39.744359][ T12] [ 39.744360][ T12] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 39.744366][ T12] ? vprintk_emit (kernel/printk/printk.c:2471) [ 39.744368][ T12] __might_resched.cold (kernel/sched/core.c:9234) [ 39.744372][ T12] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 39.744376][ 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) [ 39.744381][ 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)) [ 39.744382][ T12] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 39.744389][ 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) [ 39.744392][ T12] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 39.744396][ T12] put_chars (drivers/char/virtio_console.c:1176) [ 39.744398][ T12] ? __send_to_port (drivers/char/virtio_console.c:654) [ 39.744400][ T12] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 39.744403][ T12] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 39.744406][ T12] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 39.744411][ T12] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 39.744415][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 39.744420][ T12] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 39.744423][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.744428][ T12] console_emit_next_record (kernel/printk/printk.c:3183) [ 39.744432][ T12] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 39.744434][ 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)) [ 39.744437][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.744439][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 39.744443][ T12] console_flush_one_record (kernel/printk/printk.c:3268) [ 39.744447][ T12] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 39.744449][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 39.744455][ T12] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 39.744457][ T12] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 39.744459][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.744461][ 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) [ 39.744465][ T12] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 39.744467][ T12] ? vprintk_emit (kernel/printk/printk.c:2478) [ 39.744470][ T12] vprintk_emit (kernel/printk/printk.c:2479) [ 39.744473][ T12] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 39.744474][ T12] ? cleanup_net (net/core/net_namespace.c:706) [ 39.744476][ T12] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 39.744478][ T12] ? kthread (kernel/kthread.c:436) [ 39.744480][ T12] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 39.744483][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 39.744488][ T12] _printk (kernel/printk/printk.c:2504) [ 39.744491][ T12] ? snapshot_read.cold (user.c:?) [ 39.744496][ T12] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 39.744499][ T12] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 39.744503][ T12] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 39.744506][ T12] ? netdev_notice (net/core/dev.c:13194) [ 39.744511][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.744513][ T12] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 39.744515][ T12] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 39.744517][ 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) [ 39.744519][ T12] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 39.744524][ T12] dev_set_allmulti (net/core/dev_api.c:315) [ 39.744527][ T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 39.744531][ T12] ? unregister_netdevice_many (net/core/dev.c:12589) [ 39.744532][ 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)) [ 39.744537][ T12] br_dev_delete (net/bridge/br_if.c:387) [ 39.744541][ T12] br_net_exit_rtnl (net/bridge/br.c:414) [ 39.744545][ T12] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 39.744548][ T12] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 39.744552][ T12] ? netns_install (./include/linux/ns_common.h:26) [ 39.744553][ T12] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 39.744557][ T12] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 39.744561][ T12] cleanup_net (net/core/net_namespace.c:706) [ 39.744564][ T12] ? net_passive_dec (./include/linux/llist.h:241) [ 39.744568][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 39.744570][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.744574][ T12] process_one_work (kernel/workqueue.c:3387) [ 39.744580][ T12] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 39.744587][ T12] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 39.744595][ T12] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 39.744602][ T12] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 39.744604][ T12] kthread (kernel/kthread.c:436) [ 39.744606][ T12] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 39.744609][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 39.744612][ T12] ret_from_fork (arch/x86/kernel/process.c:158) [ 39.744615][ T12] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 39.744618][ T12] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 39.744622][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 39.744625][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 42.069141][ T712] softirqs last disabled at (30410): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 42.069144][ T712] Preemption disabled at: | [ 42.069145][ T712] vprintk_emit (kernel/printk/printk.c:2471) | [ 42.069153][ T712] Tainted: [W]=WARN [ 42.069154][ T712] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 42.069155][ T712] Call Trace: [ 42.069157][ T712] [ 42.069159][ T712] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 42.069164][ T712] ? vprintk_emit (kernel/printk/printk.c:2471) [ 42.069166][ T712] __might_resched.cold (kernel/sched/core.c:9234) [ 42.069170][ T712] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 42.069175][ 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) [ 42.069179][ 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)) [ 42.069181][ T712] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 42.069187][ 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) [ 42.069194][ T712] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 42.069198][ T712] put_chars (drivers/char/virtio_console.c:1176) [ 42.069200][ T712] ? __send_to_port (drivers/char/virtio_console.c:654) [ 42.069206][ T712] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 42.069213][ T712] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 42.069217][ T712] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 42.069221][ T712] console_emit_next_record (kernel/printk/printk.c:3183) [ 42.069225][ T712] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 42.069227][ 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)) [ 42.069230][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.069233][ T712] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 42.069237][ T712] console_flush_one_record (kernel/printk/printk.c:3268) [ 42.069241][ T712] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 42.069243][ T712] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 42.069248][ T712] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 42.069251][ T712] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 42.069252][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.069254][ 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) [ 42.069258][ T712] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 42.069259][ T712] ? vprintk_emit (kernel/printk/printk.c:2478) [ 42.069262][ T712] vprintk_emit (kernel/printk/printk.c:2479) [ 42.069265][ T712] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 42.069267][ T712] ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6)) [ 42.069272][ T712] _printk (kernel/printk/printk.c:2504) [ 42.069276][ T712] ? snapshot_read.cold (user.c:?) [ 42.069278][ T712] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 42.069280][ T712] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 42.069283][ T712] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 42.069285][ T712] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 42.069289][ T712] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 42.069292][ T712] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 42.069294][ T712] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 42.069296][ T712] ? netdev_notice (net/core/dev.c:13194) [ 42.069299][ T712] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 42.069302][ T712] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 42.069305][ T712] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 42.069308][ T712] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 42.069310][ T712] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 42.069312][ T712] ? register_netdev (net/core/dev.c:11618) [ 42.069313][ 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)) [ 42.069318][ T712] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 42.069321][ T712] ? __kernel_text_address (kernel/extable.c:79) [ 42.069323][ T712] ? write_profile (profile.c:?) [ 42.069327][ T712] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 42.069333][ T712] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 42.069336][ T712] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 42.069338][ T712] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 42.069339][ T712] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 42.069341][ T712] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 42.069344][ T712] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 42.069346][ T712] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 42.069348][ T712] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 42.069350][ T712] ? kasan_save_stack (mm/kasan/common.c:58) [ 42.069352][ T712] ? kasan_save_stack (mm/kasan/common.c:57) [ 42.069353][ T712] ? kasan_save_track (mm/kasan/common.c:78) [ 42.069354][ T712] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 42.069357][ T712] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 42.069359][ T712] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 42.069361][ T712] ? ___sys_sendmsg (net/socket.c:2758) [ 42.069365][ T712] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 42.069367][ T712] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 42.069370][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.069371][ T712] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 42.069373][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.069374][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.069376][ T712] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 42.069378][ 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) [ 42.069379][ T712] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 42.069381][ T712] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 42.069384][ T712] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 42.069385][ T712] ? nla_get_range_signed (lib/nlattr.c:270) [ 42.069390][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.069392][ T712] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 42.069397][ T712] rtnl_newlink (net/core/rtnetlink.c:4215) [ 42.069402][ T712] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 42.069404][ T712] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 42.069409][ T712] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 42.069411][ T712] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 42.069412][ T712] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 42.069414][ T712] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 42.069418][ T712] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 42.069420][ T712] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 42.069423][ T712] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 42.069424][ T712] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 42.069428][ T712] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 42.069430][ T712] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 42.069434][ T712] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 42.069437][ T712] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 42.069440][ T712] ? netlink_ack (./include/linux/skbuff.h:2718) [ 42.069446][ 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)) [ 42.069448][ 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)) [ 42.069452][ T712] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 42.069456][ T712] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 42.069458][ T712] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 42.069462][ T712] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 42.069466][ T712] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 42.069470][ T712] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 42.069471][ T712] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 42.069476][ T712] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 42.069479][ T712] ____sys_sendmsg (net/socket.c:2713) [ 42.069481][ T712] ? copy_msghdr_from_user (net/socket.c:2650) [ 42.069484][ T712] ? sock_write_iter (net/socket.c:1269) [ 42.069485][ T712] ? move_addr_to_kernel (net/socket.c:258) [ 42.069492][ T712] ___sys_sendmsg (net/socket.c:2767) [ 42.069495][ T712] ? copy_msghdr_from_user (net/socket.c:2619) [ 42.069510][ T712] __sys_sendmsg (net/socket.c:2799) [ 42.069513][ T712] ? __sys_sendmsg_sock (net/socket.c:2780) [ 42.069519][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.069522][ T712] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 42.069525][ T712] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 42.069527][ T712] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 42.069530][ T712] RIP: 0033:0x7fed5c68354e [ 42.069533][ 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 [ 42.069535][ T712] RSP: 002b:00007fff3a26d740 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 42.069538][ T712] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fed5c68354e [ 42.069539][ T712] RDX: 0000000000000000 RSI: 00007fff3a26d7f0 RDI: 0000000000000005 [ 42.069540][ T712] RBP: 00007fff3a26d750 R08: 0000000000000000 R09: 0000000000000000 [ 42.069541][ T712] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a916e25 [ 42.069542][ T712] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff3a26dec0 | [ 55.302892][ T12] softirqs last disabled at (348344): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 55.302895][ T12] Preemption disabled at: | [ 55.302896][ T12] vprintk_emit (kernel/printk/printk.c:2471) | [ 55.302904][ T12] Tainted: [W]=WARN [ 55.302905][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 55.302907][ T12] Workqueue: netns cleanup_net [ 55.302910][ T12] Call Trace: [ 55.302912][ T12] [ 55.302913][ T12] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 55.302919][ T12] ? vprintk_emit (kernel/printk/printk.c:2471) [ 55.302921][ T12] __might_resched.cold (kernel/sched/core.c:9234) [ 55.302925][ T12] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 55.302929][ 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) [ 55.302934][ 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)) [ 55.302936][ T12] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 55.302943][ 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) [ 55.302946][ T12] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 55.302949][ T12] put_chars (drivers/char/virtio_console.c:1176) [ 55.302952][ T12] ? __send_to_port (drivers/char/virtio_console.c:654) [ 55.302953][ T12] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 55.302956][ T12] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 55.302959][ T12] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 55.302964][ T12] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 55.302968][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 55.302973][ T12] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 55.302977][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 55.302981][ T12] console_emit_next_record (kernel/printk/printk.c:3183) [ 55.302985][ T12] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 55.302987][ 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)) [ 55.302991][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 55.302992][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 55.302996][ T12] console_flush_one_record (kernel/printk/printk.c:3268) [ 55.303001][ T12] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 55.303003][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 55.303008][ T12] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 55.303011][ T12] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 55.303013][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 55.303014][ 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) [ 55.303018][ T12] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 55.303020][ T12] ? vprintk_emit (kernel/printk/printk.c:2478) [ 55.303023][ T12] vprintk_emit (kernel/printk/printk.c:2479) [ 55.303026][ T12] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 55.303027][ T12] ? cleanup_net (net/core/net_namespace.c:706) [ 55.303029][ T12] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 55.303031][ T12] ? kthread (kernel/kthread.c:436) [ 55.303033][ T12] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 55.303036][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 55.303041][ T12] _printk (kernel/printk/printk.c:2504) [ 55.303044][ T12] ? snapshot_read.cold (user.c:?) [ 55.303049][ T12] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 55.303053][ T12] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 55.303056][ T12] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 55.303059][ T12] ? netdev_notice (net/core/dev.c:13194) [ 55.303064][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 55.303066][ T12] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 55.303068][ T12] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 55.303070][ 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) [ 55.303072][ T12] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 55.303076][ T12] dev_set_allmulti (net/core/dev_api.c:315) [ 55.303080][ T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 55.303083][ T12] ? unregister_netdevice_many (net/core/dev.c:12589) [ 55.303085][ 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)) [ 55.303090][ T12] br_dev_delete (net/bridge/br_if.c:387) [ 55.303094][ T12] br_net_exit_rtnl (net/bridge/br.c:414) [ 55.303097][ T12] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 55.303101][ T12] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 55.303105][ T12] ? netns_install (./include/linux/ns_common.h:26) [ 55.303106][ T12] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 55.303110][ T12] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 55.303114][ T12] cleanup_net (net/core/net_namespace.c:706) [ 55.303118][ T12] ? net_passive_dec (./include/linux/llist.h:241) [ 55.303121][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 55.303123][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 55.303127][ T12] process_one_work (kernel/workqueue.c:3387) [ 55.303133][ T12] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 55.303136][ T12] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 55.303144][ T12] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 55.303151][ T12] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 55.303153][ T12] kthread (kernel/kthread.c:436) [ 55.303155][ T12] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 55.303159][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 55.303162][ T12] ret_from_fork (arch/x86/kernel/process.c:158) [ 55.303164][ T12] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 55.303168][ T12] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 55.303171][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 55.303174][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 57.611134][ T952] softirqs last disabled at (25700): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 57.611137][ T952] Preemption disabled at: | [ 57.611137][ T952] vprintk_emit (kernel/printk/printk.c:2471) | [ 57.611145][ T952] Tainted: [W]=WARN [ 57.611146][ T952] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 57.611148][ T952] Call Trace: [ 57.611150][ T952] [ 57.611151][ T952] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 57.611157][ T952] ? vprintk_emit (kernel/printk/printk.c:2471) [ 57.611159][ T952] __might_resched.cold (kernel/sched/core.c:9234) [ 57.611163][ T952] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 57.611167][ 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) [ 57.611171][ 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)) [ 57.611173][ T952] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 57.611179][ 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) [ 57.611182][ T952] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 57.611186][ T952] put_chars (drivers/char/virtio_console.c:1176) [ 57.611188][ T952] ? __send_to_port (drivers/char/virtio_console.c:654) [ 57.611194][ T952] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 57.611201][ T952] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 57.611205][ T952] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 57.611209][ T952] console_emit_next_record (kernel/printk/printk.c:3183) [ 57.611213][ T952] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 57.611215][ 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)) [ 57.611218][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 57.611221][ T952] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 57.611225][ T952] console_flush_one_record (kernel/printk/printk.c:3268) [ 57.611229][ T952] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 57.611231][ T952] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 57.611236][ T952] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 57.611239][ T952] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 57.611240][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 57.611242][ 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) [ 57.611246][ T952] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 57.611247][ T952] ? vprintk_emit (kernel/printk/printk.c:2478) [ 57.611250][ T952] vprintk_emit (kernel/printk/printk.c:2479) [ 57.611253][ T952] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 57.611256][ T952] ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6)) [ 57.611261][ T952] _printk (kernel/printk/printk.c:2504) [ 57.611264][ T952] ? snapshot_read.cold (user.c:?) [ 57.611266][ T952] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 57.611268][ T952] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 57.611271][ T952] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 57.611273][ T952] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 57.611277][ T952] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 57.611284][ T952] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 57.611286][ T952] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 57.611289][ T952] ? netdev_notice (net/core/dev.c:13194) [ 57.611292][ T952] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 57.611295][ T952] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 57.611297][ T952] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 57.611301][ T952] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 57.611303][ T952] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 57.611305][ T952] ? register_netdev (net/core/dev.c:11618) [ 57.611306][ 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)) [ 57.611312][ T952] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 57.611314][ T952] ? __kernel_text_address (kernel/extable.c:79) [ 57.611316][ T952] ? write_profile (profile.c:?) [ 57.611320][ T952] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 57.611326][ T952] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 57.611329][ T952] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 57.611331][ T952] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 57.611333][ T952] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 57.611334][ T952] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 57.611338][ T952] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 57.611339][ T952] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 57.611341][ T952] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 57.611344][ T952] ? kasan_save_stack (mm/kasan/common.c:58) [ 57.611345][ T952] ? kasan_save_stack (mm/kasan/common.c:57) [ 57.611347][ T952] ? kasan_save_track (mm/kasan/common.c:78) [ 57.611348][ T952] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 57.611350][ T952] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 57.611352][ T952] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 57.611355][ T952] ? ___sys_sendmsg (net/socket.c:2758) [ 57.611359][ T952] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 57.611361][ T952] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 57.611364][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 57.611365][ T952] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 57.611367][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 57.611368][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 57.611369][ T952] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 57.611372][ 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) [ 57.611373][ T952] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 57.611375][ T952] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 57.611378][ T952] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 57.611379][ T952] ? nla_get_range_signed (lib/nlattr.c:270) [ 57.611384][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 57.611386][ T952] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 57.611391][ T952] rtnl_newlink (net/core/rtnetlink.c:4215) [ 57.611396][ T952] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 57.611398][ T952] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 57.611403][ T952] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 57.611404][ T952] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 57.611406][ T952] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 57.611408][ T952] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 57.611412][ T952] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 57.611414][ T952] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 57.611417][ T952] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 57.611418][ T952] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 57.611422][ T952] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 57.611424][ T952] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 57.611428][ T952] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 57.611431][ T952] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 57.611434][ T952] ? netlink_ack (./include/linux/skbuff.h:2718) [ 57.611440][ 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)) [ 57.611442][ 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)) [ 57.611446][ T952] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 57.611450][ T952] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 57.611453][ T952] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 57.611457][ T952] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 57.611461][ T952] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 57.611464][ T952] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 57.611466][ T952] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 57.611471][ T952] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 57.611474][ T952] ____sys_sendmsg (net/socket.c:2713) [ 57.611476][ T952] ? copy_msghdr_from_user (net/socket.c:2650) [ 57.611478][ T952] ? sock_write_iter (net/socket.c:1269) [ 57.611480][ T952] ? move_addr_to_kernel (net/socket.c:258) [ 57.611487][ T952] ___sys_sendmsg (net/socket.c:2767) [ 57.611490][ T952] ? copy_msghdr_from_user (net/socket.c:2619) [ 57.611505][ T952] __sys_sendmsg (net/socket.c:2799) [ 57.611508][ T952] ? __sys_sendmsg_sock (net/socket.c:2780) [ 57.611514][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 57.611517][ T952] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 57.611520][ T952] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 57.611523][ T952] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 57.611525][ T952] RIP: 0033:0x7fa5f431554e [ 57.611529][ 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 [ 57.611530][ T952] RSP: 002b:00007fffc12b95f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 57.611533][ T952] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fa5f431554e [ 57.611534][ T952] RDX: 0000000000000000 RSI: 00007fffc12b96a0 RDI: 0000000000000005 [ 57.611535][ T952] RBP: 00007fffc12b9600 R08: 0000000000000000 R09: 0000000000000000 [ 57.611536][ T952] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a916e34 [ 57.611537][ T952] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffc12b9d70 | [ 71.289912][ T12] softirqs last disabled at (497856): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 71.289914][ T12] Preemption disabled at: | [ 71.289915][ T12] vprintk_emit (kernel/printk/printk.c:2471) | [ 71.289923][ T12] Tainted: [W]=WARN [ 71.289924][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 71.289926][ T12] Workqueue: netns cleanup_net [ 71.289929][ T12] Call Trace: [ 71.289930][ T12] [ 71.289933][ T12] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 71.289938][ T12] ? vprintk_emit (kernel/printk/printk.c:2471) [ 71.289940][ T12] __might_resched.cold (kernel/sched/core.c:9234) [ 71.289944][ T12] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 71.289948][ 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) [ 71.289953][ 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)) [ 71.289955][ T12] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 71.289961][ 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) [ 71.289964][ T12] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 71.289968][ T12] put_chars (drivers/char/virtio_console.c:1176) [ 71.289970][ T12] ? __send_to_port (drivers/char/virtio_console.c:654) [ 71.289972][ T12] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 71.289975][ T12] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 71.289978][ T12] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 71.289983][ T12] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 71.289987][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 71.289992][ T12] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 71.289995][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 71.290000][ T12] console_emit_next_record (kernel/printk/printk.c:3183) [ 71.290004][ T12] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 71.290006][ 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)) [ 71.290009][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 71.290011][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 71.290015][ T12] console_flush_one_record (kernel/printk/printk.c:3268) [ 71.290019][ T12] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 71.290021][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 71.290027][ T12] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 71.290029][ T12] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 71.290031][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 71.290033][ 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) [ 71.290037][ T12] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 71.290039][ T12] ? vprintk_emit (kernel/printk/printk.c:2478) [ 71.290041][ T12] vprintk_emit (kernel/printk/printk.c:2479) [ 71.290045][ T12] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 71.290046][ T12] ? cleanup_net (net/core/net_namespace.c:706) [ 71.290048][ T12] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 71.290050][ T12] ? kthread (kernel/kthread.c:436) [ 71.290052][ T12] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 71.290055][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 71.290060][ T12] _printk (kernel/printk/printk.c:2504) [ 71.290064][ T12] ? snapshot_read.cold (user.c:?) [ 71.290068][ T12] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 71.290072][ T12] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 71.290076][ T12] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 71.290078][ T12] ? netdev_notice (net/core/dev.c:13194) [ 71.290083][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 71.290085][ T12] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 71.290087][ T12] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 71.290089][ 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) [ 71.290091][ T12] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 71.290096][ T12] dev_set_allmulti (net/core/dev_api.c:315) [ 71.290099][ T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 71.290103][ T12] ? unregister_netdevice_many (net/core/dev.c:12589) [ 71.290105][ 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)) [ 71.290110][ T12] br_dev_delete (net/bridge/br_if.c:387) [ 71.290113][ T12] br_net_exit_rtnl (net/bridge/br.c:414) [ 71.290117][ T12] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 71.290121][ T12] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 71.290125][ T12] ? netns_install (./include/linux/ns_common.h:26) [ 71.290126][ T12] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 71.290129][ T12] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 71.290134][ T12] cleanup_net (net/core/net_namespace.c:706) [ 71.290137][ T12] ? net_passive_dec (./include/linux/llist.h:241) [ 71.290141][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 71.290143][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 71.290146][ T12] process_one_work (kernel/workqueue.c:3387) [ 71.290153][ T12] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 71.290156][ T12] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 71.290164][ T12] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 71.290171][ T12] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 71.290173][ T12] kthread (kernel/kthread.c:436) [ 71.290175][ T12] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 71.290178][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 71.290181][ T12] ret_from_fork (arch/x86/kernel/process.c:158) [ 71.290184][ T12] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 71.290187][ T12] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 71.290191][ 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