====================================== | [ 10.742335][ T244] softirqs last disabled at (26858): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 10.742337][ T244] Preemption disabled at: | [ 10.742338][ T244] vprintk_emit (kernel/printk/printk.c:2471) | [ 10.742346][ T244] Tainted: [W]=WARN [ 10.742347][ T244] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.742349][ T244] Call Trace: [ 10.742350][ T244] [ 10.742352][ T244] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.742358][ T244] ? vprintk_emit (kernel/printk/printk.c:2471) [ 10.742359][ T244] __might_resched.cold (kernel/sched/core.c:9234) [ 10.742364][ T244] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.742368][ 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) [ 10.742373][ 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)) [ 10.742375][ T244] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.742381][ 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) [ 10.742383][ T244] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.742387][ T244] put_chars (drivers/char/virtio_console.c:1176) [ 10.742389][ T244] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.742396][ T244] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.742403][ T244] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.742406][ T244] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.742410][ T244] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.742414][ T244] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.742416][ 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)) [ 10.742419][ T244] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.742421][ T244] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.742425][ T244] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.742429][ T244] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.742431][ T244] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.742436][ T244] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.742439][ T244] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.742441][ T244] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.742442][ 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) [ 10.742446][ T244] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.742448][ T244] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.742450][ T244] vprintk_emit (kernel/printk/printk.c:2479) [ 10.742453][ T244] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.742455][ T244] ? save_trace (kernel/locking/lockdep.c:589) [ 10.742460][ T244] _printk (kernel/printk/printk.c:2504) [ 10.742463][ T244] ? snapshot_read.cold (user.c:?) [ 10.742466][ T244] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 10.742468][ T244] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 10.742472][ T244] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 10.742475][ T244] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.742477][ T244] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 10.742480][ T244] ? netdev_notice (net/core/dev.c:13194) [ 10.742483][ T244] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.742485][ T244] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.742488][ T244] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 10.742491][ T244] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.742493][ T244] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 10.742495][ T244] ? register_netdev (net/core/dev.c:11618) [ 10.742496][ 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)) [ 10.742502][ T244] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 10.742504][ T244] ? __kernel_text_address (kernel/extable.c:79) [ 10.742507][ T244] ? write_profile (profile.c:?) [ 10.742511][ T244] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 10.742516][ T244] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.742519][ T244] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 10.742521][ T244] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 10.742522][ T244] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 10.742525][ T244] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 10.742528][ T244] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.742531][ T244] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 10.742532][ T244] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.742535][ T244] ? kasan_save_stack (mm/kasan/common.c:58) [ 10.742537][ T244] ? kasan_save_stack (mm/kasan/common.c:57) [ 10.742538][ T244] ? kasan_save_track (mm/kasan/common.c:78) [ 10.742539][ T244] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 10.742541][ T244] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.742543][ T244] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 10.742546][ T244] ? ___sys_sendmsg (net/socket.c:2758) [ 10.742550][ T244] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.742552][ T244] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.742554][ T244] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.742556][ T244] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.742557][ T244] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.742558][ T244] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.742560][ T244] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 10.742562][ 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) [ 10.742565][ T244] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 10.742567][ T244] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.742570][ T244] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 10.742571][ T244] ? nla_get_range_signed (lib/nlattr.c:270) [ 10.742576][ T244] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.742578][ T244] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 10.742583][ T244] rtnl_newlink (net/core/rtnetlink.c:4215) [ 10.742589][ T244] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.742590][ T244] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.742595][ T244] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.742597][ T244] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.742599][ T244] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.742600][ T244] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.742604][ T244] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.742606][ T244] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 10.742609][ T244] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.742610][ T244] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.742615][ T244] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.742617][ T244] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.742620][ T244] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 10.742623][ T244] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.742626][ T244] ? netlink_ack (./include/linux/skbuff.h:2718) [ 10.742632][ 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)) [ 10.742634][ 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)) [ 10.742639][ T244] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 10.742643][ T244] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 10.742645][ T244] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.742649][ T244] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 10.742653][ T244] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 10.742657][ T244] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.742658][ T244] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 10.742663][ T244] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 10.742666][ T244] ____sys_sendmsg (net/socket.c:2713) [ 10.742668][ T244] ? copy_msghdr_from_user (net/socket.c:2650) [ 10.742671][ T244] ? sock_write_iter (net/socket.c:1269) [ 10.742672][ T244] ? move_addr_to_kernel (net/socket.c:258) [ 10.742679][ T244] ___sys_sendmsg (net/socket.c:2767) [ 10.742682][ T244] ? copy_msghdr_from_user (net/socket.c:2619) [ 10.742697][ T244] __sys_sendmsg (net/socket.c:2799) [ 10.742700][ T244] ? __sys_sendmsg_sock (net/socket.c:2780) [ 10.742706][ T244] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.742709][ T244] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.742712][ T244] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.742715][ T244] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.742717][ T244] RIP: 0033:0x7f6e78ed454e [ 10.742721][ 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 [ 10.742723][ T244] RSP: 002b:00007fff76262c20 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 10.742725][ T244] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f6e78ed454e [ 10.742727][ T244] RDX: 0000000000000000 RSI: 00007fff76262cd0 RDI: 0000000000000005 [ 10.742728][ T244] RBP: 00007fff76262c30 R08: 0000000000000000 R09: 0000000000000000 [ 10.742728][ T244] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f195 [ 10.742729][ T244] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff762633a0 | [ 23.953965][ T68] softirqs last disabled at (9834): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 23.953967][ T68] Preemption disabled at: | [ 23.953968][ T68] vprintk_emit (kernel/printk/printk.c:2471) | [ 23.953976][ T68] Tainted: [W]=WARN [ 23.953977][ T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 23.953979][ T68] Workqueue: netns cleanup_net [ 23.953982][ T68] Call Trace: [ 23.953984][ T68] [ 23.953985][ T68] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 23.953991][ T68] ? vprintk_emit (kernel/printk/printk.c:2471) [ 23.953993][ T68] __might_resched.cold (kernel/sched/core.c:9234) [ 23.953998][ T68] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 23.954002][ T68] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 23.954006][ T68] __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)) [ 23.954008][ T68] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.954015][ T68] ? 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) [ 23.954017][ T68] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 23.954021][ T68] put_chars (drivers/char/virtio_console.c:1176) [ 23.954023][ T68] ? __send_to_port (drivers/char/virtio_console.c:654) [ 23.954026][ T68] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 23.954031][ T68] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 23.954035][ T68] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.954040][ T68] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 23.954043][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.954049][ T68] console_emit_next_record (kernel/printk/printk.c:3183) [ 23.954053][ T68] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 23.954054][ T68] ? 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)) [ 23.954058][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.954059][ T68] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.954063][ T68] console_flush_one_record (kernel/printk/printk.c:3268) [ 23.954068][ T68] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 23.954069][ T68] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 23.954075][ T68] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 23.954078][ T68] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 23.954079][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.954081][ T68] ? 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) [ 23.954085][ T68] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 23.954087][ T68] ? vprintk_emit (kernel/printk/printk.c:2478) [ 23.954090][ T68] vprintk_emit (kernel/printk/printk.c:2479) [ 23.954093][ T68] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 23.954094][ T68] ? cleanup_net (net/core/net_namespace.c:706) [ 23.954096][ T68] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 23.954098][ T68] ? kthread (kernel/kthread.c:436) [ 23.954100][ T68] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 23.954103][ T68] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 23.954107][ T68] _printk (kernel/printk/printk.c:2504) [ 23.954111][ T68] ? snapshot_read.cold (user.c:?) [ 23.954115][ T68] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 23.954119][ T68] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 23.954122][ T68] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 23.954125][ T68] ? netdev_notice (net/core/dev.c:13194) [ 23.954130][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.954131][ T68] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 23.954134][ T68] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 23.954136][ T68] ? 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) [ 23.954138][ T68] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 23.954142][ T68] dev_set_allmulti (net/core/dev_api.c:315) [ 23.954146][ T68] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 23.954149][ T68] ? unregister_netdevice_many (net/core/dev.c:12589) [ 23.954151][ T68] ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2)) [ 23.954156][ T68] br_dev_delete (net/bridge/br_if.c:387) [ 23.954159][ T68] br_net_exit_rtnl (net/bridge/br.c:414) [ 23.954163][ T68] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 23.954166][ T68] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 23.954170][ T68] ? netns_install (./include/linux/ns_common.h:26) [ 23.954171][ T68] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 23.954174][ T68] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 23.954179][ T68] cleanup_net (net/core/net_namespace.c:706) [ 23.954182][ T68] ? net_passive_dec (./include/linux/llist.h:241) [ 23.954186][ T68] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 23.954188][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 23.954191][ T68] process_one_work (kernel/workqueue.c:3387) [ 23.954198][ T68] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 23.954201][ T68] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 23.954208][ T68] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 23.954212][ T68] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 23.954214][ T68] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 23.954217][ T68] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 23.954220][ T68] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 23.954222][ T68] kthread (kernel/kthread.c:436) [ 23.954224][ T68] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 23.954227][ T68] ? kthread_affine_preferred (kernel/kthread.c:857) [ 23.954230][ T68] ret_from_fork (arch/x86/kernel/process.c:158) [ 23.954233][ T68] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 23.954236][ T68] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 23.954240][ T68] ? kthread_affine_preferred (kernel/kthread.c:857) [ 23.954243][ T68] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 26.149307][ T473] softirqs last disabled at (25308): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 26.149310][ T473] Preemption disabled at: | [ 26.149311][ T473] vprintk_emit (kernel/printk/printk.c:2471) | [ 26.149319][ T473] Tainted: [W]=WARN [ 26.149320][ T473] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 26.149322][ T473] Call Trace: [ 26.149324][ T473] [ 26.149325][ T473] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 26.149331][ T473] ? vprintk_emit (kernel/printk/printk.c:2471) [ 26.149333][ T473] __might_resched.cold (kernel/sched/core.c:9234) [ 26.149338][ T473] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 26.149342][ 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) [ 26.149350][ 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)) [ 26.149352][ T473] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 26.149358][ 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) [ 26.149361][ T473] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 26.149365][ T473] put_chars (drivers/char/virtio_console.c:1176) [ 26.149367][ T473] ? __send_to_port (drivers/char/virtio_console.c:654) [ 26.149373][ T473] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 26.149380][ T473] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 26.149384][ T473] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.149388][ T473] console_emit_next_record (kernel/printk/printk.c:3183) [ 26.149392][ T473] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 26.149394][ 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)) [ 26.149397][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.149400][ T473] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.149404][ T473] console_flush_one_record (kernel/printk/printk.c:3268) [ 26.149408][ T473] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 26.149410][ T473] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.149415][ T473] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 26.149418][ T473] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 26.149420][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.149421][ 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) [ 26.149425][ T473] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 26.149427][ T473] ? vprintk_emit (kernel/printk/printk.c:2478) [ 26.149429][ T473] vprintk_emit (kernel/printk/printk.c:2479) [ 26.149433][ T473] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 26.149435][ T473] ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6)) [ 26.149440][ T473] _printk (kernel/printk/printk.c:2504) [ 26.149443][ T473] ? snapshot_read.cold (user.c:?) [ 26.149445][ T473] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 26.149448][ T473] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 26.149450][ T473] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 26.149453][ T473] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 26.149456][ T473] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 26.149459][ T473] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 26.149461][ T473] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 26.149464][ T473] ? netdev_notice (net/core/dev.c:13194) [ 26.149467][ T473] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.149470][ T473] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 26.149472][ T473] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 26.149476][ T473] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 26.149478][ T473] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 26.149480][ T473] ? register_netdev (net/core/dev.c:11618) [ 26.149481][ 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)) [ 26.149486][ T473] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 26.149489][ T473] ? __kernel_text_address (kernel/extable.c:79) [ 26.149491][ T473] ? write_profile (profile.c:?) [ 26.149496][ T473] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 26.149501][ T473] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 26.149504][ T473] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 26.149506][ T473] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 26.149507][ T473] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 26.149509][ T473] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 26.149513][ T473] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 26.149515][ T473] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 26.149516][ T473] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 26.149519][ T473] ? kasan_save_stack (mm/kasan/common.c:58) [ 26.149521][ T473] ? kasan_save_stack (mm/kasan/common.c:57) [ 26.149522][ T473] ? kasan_save_track (mm/kasan/common.c:78) [ 26.149523][ T473] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 26.149525][ T473] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.149527][ T473] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 26.149530][ T473] ? ___sys_sendmsg (net/socket.c:2758) [ 26.149534][ T473] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.149536][ T473] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 26.149538][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.149540][ T473] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.149541][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.149542][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.149544][ T473] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 26.149546][ 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) [ 26.149548][ T473] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 26.149550][ T473] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 26.149553][ T473] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 26.149554][ T473] ? nla_get_range_signed (lib/nlattr.c:270) [ 26.149559][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.149561][ T473] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 26.149566][ T473] rtnl_newlink (net/core/rtnetlink.c:4215) [ 26.149571][ T473] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.149573][ T473] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.149577][ T473] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.149579][ T473] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.149581][ T473] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.149583][ T473] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 26.149586][ T473] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 26.149588][ T473] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 26.149592][ T473] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 26.149593][ T473] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.149597][ T473] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 26.149599][ T473] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.149603][ T473] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 26.149606][ T473] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 26.149608][ T473] ? netlink_ack (./include/linux/skbuff.h:2718) [ 26.149615][ 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)) [ 26.149617][ 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)) [ 26.149621][ T473] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 26.149625][ T473] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 26.149627][ T473] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 26.149631][ T473] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 26.149635][ T473] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 26.149639][ T473] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 26.149641][ T473] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 26.149646][ T473] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 26.149649][ T473] ____sys_sendmsg (net/socket.c:2713) [ 26.149651][ T473] ? copy_msghdr_from_user (net/socket.c:2650) [ 26.149653][ T473] ? sock_write_iter (net/socket.c:1269) [ 26.149655][ T473] ? move_addr_to_kernel (net/socket.c:258) [ 26.149662][ T473] ___sys_sendmsg (net/socket.c:2767) [ 26.149664][ T473] ? copy_msghdr_from_user (net/socket.c:2619) [ 26.149679][ T473] __sys_sendmsg (net/socket.c:2799) [ 26.149682][ T473] ? __sys_sendmsg_sock (net/socket.c:2780) [ 26.149688][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.149691][ T473] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 26.149694][ T473] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 26.149697][ T473] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 26.149699][ T473] RIP: 0033:0x7fc63ddb054e [ 26.149703][ 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 [ 26.149704][ T473] RSP: 002b:00007fff06765550 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 26.149707][ T473] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fc63ddb054e [ 26.149708][ T473] RDX: 0000000000000000 RSI: 00007fff06765600 RDI: 0000000000000005 [ 26.149709][ T473] RBP: 00007fff06765560 R08: 0000000000000000 R09: 0000000000000000 [ 26.149710][ T473] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f1a4 [ 26.149711][ T473] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff06765cd0 | [ 39.395367][ T68] softirqs last disabled at (157538): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 39.395369][ T68] Preemption disabled at: | [ 39.395369][ T68] vprintk_emit (kernel/printk/printk.c:2471) | [ 39.395378][ T68] Tainted: [W]=WARN [ 39.395379][ T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 39.395380][ T68] Workqueue: netns cleanup_net [ 39.395383][ T68] Call Trace: [ 39.395385][ T68] [ 39.395387][ T68] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 39.395393][ T68] ? vprintk_emit (kernel/printk/printk.c:2471) [ 39.395394][ T68] __might_resched.cold (kernel/sched/core.c:9234) [ 39.395399][ T68] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 39.395403][ T68] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 39.395407][ T68] __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)) [ 39.395409][ T68] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 39.395416][ T68] ? 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) [ 39.395426][ T68] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 39.395430][ T68] put_chars (drivers/char/virtio_console.c:1176) [ 39.395432][ T68] ? __send_to_port (drivers/char/virtio_console.c:654) [ 39.395434][ T68] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 39.395437][ T68] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 39.395440][ T68] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 39.395445][ T68] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 39.395449][ T68] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 39.395454][ T68] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 39.395457][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.395462][ T68] console_emit_next_record (kernel/printk/printk.c:3183) [ 39.395466][ T68] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 39.395468][ T68] ? 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)) [ 39.395471][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.395473][ T68] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 39.395477][ T68] console_flush_one_record (kernel/printk/printk.c:3268) [ 39.395481][ T68] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 39.395483][ T68] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 39.395489][ T68] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 39.395491][ T68] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 39.395493][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.395495][ T68] ? 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) [ 39.395499][ T68] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 39.395501][ T68] ? vprintk_emit (kernel/printk/printk.c:2478) [ 39.395503][ T68] vprintk_emit (kernel/printk/printk.c:2479) [ 39.395507][ T68] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 39.395508][ T68] ? cleanup_net (net/core/net_namespace.c:706) [ 39.395510][ T68] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 39.395512][ T68] ? kthread (kernel/kthread.c:436) [ 39.395514][ T68] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 39.395517][ T68] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 39.395521][ T68] _printk (kernel/printk/printk.c:2504) [ 39.395525][ T68] ? snapshot_read.cold (user.c:?) [ 39.395529][ T68] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 39.395533][ T68] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 39.395537][ T68] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 39.395540][ T68] ? netdev_notice (net/core/dev.c:13194) [ 39.395544][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.395546][ T68] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 39.395549][ T68] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 39.395551][ T68] ? 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) [ 39.395553][ T68] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 39.395557][ T68] dev_set_allmulti (net/core/dev_api.c:315) [ 39.395561][ T68] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 39.395564][ T68] ? unregister_netdevice_many (net/core/dev.c:12589) [ 39.395566][ T68] ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2)) [ 39.395571][ T68] br_dev_delete (net/bridge/br_if.c:387) [ 39.395575][ T68] br_net_exit_rtnl (net/bridge/br.c:414) [ 39.395579][ T68] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 39.395582][ T68] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 39.395586][ T68] ? netns_install (./include/linux/ns_common.h:26) [ 39.395587][ T68] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 39.395591][ T68] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 39.395595][ T68] cleanup_net (net/core/net_namespace.c:706) [ 39.395598][ T68] ? net_passive_dec (./include/linux/llist.h:241) [ 39.395602][ T68] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 39.395604][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 39.395607][ T68] process_one_work (kernel/workqueue.c:3387) [ 39.395614][ T68] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 39.395617][ T68] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 39.395625][ T68] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 39.395629][ T68] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 39.395631][ T68] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 39.395634][ T68] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 39.395637][ T68] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 39.395639][ T68] kthread (kernel/kthread.c:436) [ 39.395641][ T68] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 39.395644][ T68] ? kthread_affine_preferred (kernel/kthread.c:857) [ 39.395647][ T68] ret_from_fork (arch/x86/kernel/process.c:158) [ 39.395650][ T68] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 39.395654][ T68] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 39.395657][ T68] ? kthread_affine_preferred (kernel/kthread.c:857) [ 39.395660][ T68] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 41.623410][ T712] softirqs last disabled at (25930): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 41.623412][ T712] Preemption disabled at: | [ 41.623413][ T712] vprintk_emit (kernel/printk/printk.c:2471) | [ 41.623421][ T712] Tainted: [W]=WARN [ 41.623422][ T712] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 41.623423][ T712] Call Trace: [ 41.623425][ T712] [ 41.623426][ T712] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 41.623435][ T712] ? vprintk_emit (kernel/printk/printk.c:2471) [ 41.623437][ T712] __might_resched.cold (kernel/sched/core.c:9234) [ 41.623442][ T712] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 41.623446][ 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) [ 41.623450][ 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)) [ 41.623452][ T712] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 41.623458][ 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) [ 41.623461][ T712] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 41.623464][ T712] put_chars (drivers/char/virtio_console.c:1176) [ 41.623466][ T712] ? __send_to_port (drivers/char/virtio_console.c:654) [ 41.623472][ T712] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 41.623480][ T712] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 41.623483][ T712] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 41.623487][ T712] console_emit_next_record (kernel/printk/printk.c:3183) [ 41.623491][ T712] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 41.623493][ 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)) [ 41.623496][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 41.623499][ T712] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 41.623502][ T712] console_flush_one_record (kernel/printk/printk.c:3268) [ 41.623506][ T712] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 41.623508][ T712] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 41.623513][ T712] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 41.623516][ T712] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 41.623518][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 41.623520][ 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) [ 41.623523][ T712] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 41.623525][ T712] ? vprintk_emit (kernel/printk/printk.c:2478) [ 41.623528][ T712] vprintk_emit (kernel/printk/printk.c:2479) [ 41.623531][ T712] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 41.623533][ T712] ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6)) [ 41.623538][ T712] _printk (kernel/printk/printk.c:2504) [ 41.623541][ T712] ? snapshot_read.cold (user.c:?) [ 41.623543][ T712] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 41.623546][ T712] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 41.623548][ T712] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 41.623550][ T712] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 41.623554][ T712] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 41.623557][ T712] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 41.623559][ T712] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 41.623562][ T712] ? netdev_notice (net/core/dev.c:13194) [ 41.623564][ T712] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 41.623567][ T712] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 41.623570][ T712] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 41.623573][ T712] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 41.623575][ T712] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 41.623577][ T712] ? register_netdev (net/core/dev.c:11618) [ 41.623578][ 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)) [ 41.623584][ T712] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 41.623586][ T712] ? __kernel_text_address (kernel/extable.c:79) [ 41.623589][ T712] ? write_profile (profile.c:?) [ 41.623593][ T712] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 41.623598][ T712] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 41.623601][ T712] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 41.623603][ T712] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 41.623604][ T712] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 41.623606][ T712] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 41.623610][ T712] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 41.623611][ T712] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 41.623613][ T712] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 41.623616][ T712] ? kasan_save_stack (mm/kasan/common.c:58) [ 41.623617][ T712] ? kasan_save_stack (mm/kasan/common.c:57) [ 41.623619][ T712] ? kasan_save_track (mm/kasan/common.c:78) [ 41.623620][ T712] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 41.623622][ T712] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 41.623624][ T712] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 41.623626][ T712] ? ___sys_sendmsg (net/socket.c:2758) [ 41.623630][ T712] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 41.623632][ T712] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 41.623634][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 41.623636][ T712] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 41.623638][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 41.623639][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 41.623640][ T712] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 41.623643][ 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) [ 41.623644][ T712] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 41.623646][ T712] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 41.623649][ T712] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 41.623650][ T712] ? nla_get_range_signed (lib/nlattr.c:270) [ 41.623655][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 41.623657][ T712] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 41.623662][ T712] rtnl_newlink (net/core/rtnetlink.c:4215) [ 41.623667][ T712] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 41.623669][ T712] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 41.623673][ T712] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 41.623675][ T712] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 41.623677][ T712] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 41.623679][ T712] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 41.623682][ T712] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 41.623684][ T712] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 41.623687][ T712] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 41.623688][ T712] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 41.623693][ T712] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 41.623695][ T712] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 41.623698][ T712] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 41.623701][ T712] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 41.623704][ T712] ? netlink_ack (./include/linux/skbuff.h:2718) [ 41.623710][ 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)) [ 41.623712][ 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)) [ 41.623716][ T712] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 41.623720][ T712] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 41.623723][ T712] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 41.623727][ T712] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 41.623732][ T712] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 41.623736][ T712] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 41.623738][ T712] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 41.623743][ T712] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 41.623746][ T712] ____sys_sendmsg (net/socket.c:2713) [ 41.623748][ T712] ? copy_msghdr_from_user (net/socket.c:2650) [ 41.623750][ T712] ? sock_write_iter (net/socket.c:1269) [ 41.623752][ T712] ? move_addr_to_kernel (net/socket.c:258) [ 41.623759][ T712] ___sys_sendmsg (net/socket.c:2767) [ 41.623762][ T712] ? copy_msghdr_from_user (net/socket.c:2619) [ 41.623777][ T712] __sys_sendmsg (net/socket.c:2799) [ 41.623780][ T712] ? __sys_sendmsg_sock (net/socket.c:2780) [ 41.623785][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 41.623788][ T712] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 41.623791][ T712] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 41.623794][ T712] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 41.623796][ T712] RIP: 0033:0x7fe2b730f54e [ 41.623800][ 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 [ 41.623802][ T712] RSP: 002b:00007fff99059160 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 41.623804][ T712] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fe2b730f54e [ 41.623805][ T712] RDX: 0000000000000000 RSI: 00007fff99059210 RDI: 0000000000000005 [ 41.623806][ T712] RBP: 00007fff99059170 R08: 0000000000000000 R09: 0000000000000000 [ 41.623807][ T712] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f1b3 [ 41.623808][ T712] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff990598e0 | [ 54.725467][ T68] softirqs last disabled at (339594): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 54.725469][ T68] Preemption disabled at: | [ 54.725470][ T68] vprintk_emit (kernel/printk/printk.c:2471) | [ 54.725478][ T68] Tainted: [W]=WARN [ 54.725479][ T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 54.725481][ T68] Workqueue: netns cleanup_net [ 54.725484][ T68] Call Trace: [ 54.725486][ T68] [ 54.725488][ T68] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 54.725494][ T68] ? vprintk_emit (kernel/printk/printk.c:2471) [ 54.725495][ T68] __might_resched.cold (kernel/sched/core.c:9234) [ 54.725509][ T68] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 54.725513][ T68] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 54.725517][ T68] __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)) [ 54.725519][ T68] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 54.725526][ T68] ? 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) [ 54.725528][ T68] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 54.725532][ T68] put_chars (drivers/char/virtio_console.c:1176) [ 54.725534][ T68] ? __send_to_port (drivers/char/virtio_console.c:654) [ 54.725536][ T68] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 54.725539][ T68] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 54.725542][ T68] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 54.725547][ T68] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 54.725551][ T68] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 54.725556][ T68] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 54.725559][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 54.725564][ T68] console_emit_next_record (kernel/printk/printk.c:3183) [ 54.725568][ T68] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 54.725570][ T68] ? 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)) [ 54.725573][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 54.725575][ T68] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 54.725579][ T68] console_flush_one_record (kernel/printk/printk.c:3268) [ 54.725583][ T68] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 54.725585][ T68] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 54.725590][ T68] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 54.725593][ T68] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 54.725595][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 54.725597][ T68] ? 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) [ 54.725600][ T68] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 54.725602][ T68] ? vprintk_emit (kernel/printk/printk.c:2478) [ 54.725605][ T68] vprintk_emit (kernel/printk/printk.c:2479) [ 54.725608][ T68] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 54.725609][ T68] ? cleanup_net (net/core/net_namespace.c:706) [ 54.725611][ T68] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 54.725613][ T68] ? kthread (kernel/kthread.c:436) [ 54.725615][ T68] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 54.725618][ T68] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 54.725623][ T68] _printk (kernel/printk/printk.c:2504) [ 54.725626][ T68] ? snapshot_read.cold (user.c:?) [ 54.725631][ T68] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 54.725635][ T68] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 54.725638][ T68] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 54.725641][ T68] ? netdev_notice (net/core/dev.c:13194) [ 54.725646][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 54.725648][ T68] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 54.725650][ T68] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 54.725652][ T68] ? 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) [ 54.725654][ T68] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 54.725658][ T68] dev_set_allmulti (net/core/dev_api.c:315) [ 54.725662][ T68] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 54.725665][ T68] ? unregister_netdevice_many (net/core/dev.c:12589) [ 54.725667][ T68] ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2)) [ 54.725672][ T68] br_dev_delete (net/bridge/br_if.c:387) [ 54.725675][ T68] br_net_exit_rtnl (net/bridge/br.c:414) [ 54.725679][ T68] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 54.725683][ T68] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 54.725686][ T68] ? netns_install (./include/linux/ns_common.h:26) [ 54.725688][ T68] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 54.725691][ T68] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 54.725696][ T68] cleanup_net (net/core/net_namespace.c:706) [ 54.725699][ T68] ? net_passive_dec (./include/linux/llist.h:241) [ 54.725702][ T68] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 54.725704][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 54.725708][ T68] process_one_work (kernel/workqueue.c:3387) [ 54.725714][ T68] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 54.725717][ T68] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 54.725725][ T68] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 54.725729][ T68] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 54.725734][ T68] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 54.725737][ T68] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 54.725740][ T68] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 54.725742][ T68] kthread (kernel/kthread.c:436) [ 54.725744][ T68] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 54.725747][ T68] ? kthread_affine_preferred (kernel/kthread.c:857) [ 54.725750][ T68] ret_from_fork (arch/x86/kernel/process.c:158) [ 54.725753][ T68] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 54.725756][ T68] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 54.725760][ T68] ? kthread_affine_preferred (kernel/kthread.c:857) [ 54.725764][ T68] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 56.897250][ T952] softirqs last disabled at (19412): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 56.897252][ T952] Preemption disabled at: | [ 56.897253][ T952] vprintk_emit (kernel/printk/printk.c:2471) | [ 56.897261][ T952] Tainted: [W]=WARN [ 56.897262][ T952] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 56.897264][ T952] Call Trace: [ 56.897265][ T952] [ 56.897267][ T952] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 56.897273][ T952] ? vprintk_emit (kernel/printk/printk.c:2471) [ 56.897275][ T952] __might_resched.cold (kernel/sched/core.c:9234) [ 56.897279][ T952] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 56.897283][ 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) [ 56.897288][ 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)) [ 56.897290][ T952] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 56.897296][ 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) [ 56.897299][ T952] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 56.897302][ T952] put_chars (drivers/char/virtio_console.c:1176) [ 56.897304][ T952] ? __send_to_port (drivers/char/virtio_console.c:654) [ 56.897311][ T952] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 56.897318][ T952] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 56.897321][ T952] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 56.897325][ T952] console_emit_next_record (kernel/printk/printk.c:3183) [ 56.897329][ T952] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 56.897331][ 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)) [ 56.897334][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 56.897337][ T952] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 56.897341][ T952] console_flush_one_record (kernel/printk/printk.c:3268) [ 56.897345][ T952] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 56.897347][ T952] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 56.897352][ T952] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 56.897355][ T952] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 56.897356][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 56.897358][ 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) [ 56.897362][ T952] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 56.897363][ T952] ? vprintk_emit (kernel/printk/printk.c:2478) [ 56.897366][ T952] vprintk_emit (kernel/printk/printk.c:2479) [ 56.897369][ T952] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 56.897372][ T952] ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6)) [ 56.897377][ T952] _printk (kernel/printk/printk.c:2504) [ 56.897380][ T952] ? snapshot_read.cold (user.c:?) [ 56.897382][ T952] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 56.897385][ T952] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 56.897387][ T952] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 56.897389][ T952] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 56.897393][ T952] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 56.897396][ T952] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 56.897398][ T952] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 56.897401][ T952] ? netdev_notice (net/core/dev.c:13194) [ 56.897404][ T952] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 56.897406][ T952] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 56.897409][ T952] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 56.897412][ T952] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 56.897414][ T952] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 56.897416][ T952] ? register_netdev (net/core/dev.c:11618) [ 56.897417][ 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)) [ 56.897423][ T952] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 56.897425][ T952] ? __kernel_text_address (kernel/extable.c:79) [ 56.897428][ T952] ? write_profile (profile.c:?) [ 56.897432][ T952] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 56.897437][ T952] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 56.897441][ T952] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 56.897443][ T952] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 56.897444][ T952] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 56.897446][ T952] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 56.897449][ T952] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 56.897451][ T952] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 56.897453][ T952] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 56.897455][ T952] ? kasan_save_stack (mm/kasan/common.c:58) [ 56.897457][ T952] ? kasan_save_stack (mm/kasan/common.c:57) [ 56.897458][ T952] ? kasan_save_track (mm/kasan/common.c:78) [ 56.897459][ T952] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 56.897462][ T952] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 56.897463][ T952] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 56.897466][ T952] ? ___sys_sendmsg (net/socket.c:2758) [ 56.897470][ T952] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 56.897472][ T952] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 56.897475][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 56.897476][ T952] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 56.897478][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 56.897479][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 56.897481][ T952] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 56.897483][ 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) [ 56.897484][ T952] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 56.897486][ T952] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 56.897489][ T952] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 56.897491][ T952] ? nla_get_range_signed (lib/nlattr.c:270) [ 56.897496][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 56.897498][ T952] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 56.897503][ T952] rtnl_newlink (net/core/rtnetlink.c:4215) [ 56.897508][ T952] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 56.897510][ T952] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 56.897520][ T952] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 56.897522][ T952] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 56.897524][ T952] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 56.897526][ T952] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 56.897530][ T952] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 56.897532][ T952] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 56.897535][ T952] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 56.897536][ T952] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 56.897541][ T952] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 56.897542][ T952] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 56.897546][ T952] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 56.897549][ T952] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 56.897552][ T952] ? netlink_ack (./include/linux/skbuff.h:2718) [ 56.897558][ 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)) [ 56.897560][ 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)) [ 56.897564][ T952] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 56.897568][ T952] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 56.897570][ T952] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 56.897574][ T952] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 56.897578][ T952] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 56.897582][ T952] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 56.897583][ T952] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 56.897589][ T952] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 56.897591][ T952] ____sys_sendmsg (net/socket.c:2713) [ 56.897593][ T952] ? copy_msghdr_from_user (net/socket.c:2650) [ 56.897596][ T952] ? sock_write_iter (net/socket.c:1269) [ 56.897597][ T952] ? move_addr_to_kernel (net/socket.c:258) [ 56.897604][ T952] ___sys_sendmsg (net/socket.c:2767) [ 56.897607][ T952] ? copy_msghdr_from_user (net/socket.c:2619) [ 56.897622][ T952] __sys_sendmsg (net/socket.c:2799) [ 56.897625][ T952] ? __sys_sendmsg_sock (net/socket.c:2780) [ 56.897631][ T952] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 56.897634][ T952] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 56.897637][ T952] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 56.897640][ T952] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 56.897642][ T952] RIP: 0033:0x7f9687c7254e [ 56.897645][ 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 [ 56.897647][ T952] RSP: 002b:00007ffebdc914f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 56.897650][ T952] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f9687c7254e [ 56.897651][ T952] RDX: 0000000000000000 RSI: 00007ffebdc915a0 RDI: 0000000000000005 [ 56.897652][ T952] RBP: 00007ffebdc91500 R08: 0000000000000000 R09: 0000000000000000 [ 56.897653][ T952] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f1c3 [ 56.897653][ T952] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffebdc91c70 | [ 70.343577][ T68] softirqs last disabled at (503114): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 70.343580][ T68] Preemption disabled at: | [ 70.343581][ T68] vprintk_emit (kernel/printk/printk.c:2471) | [ 70.343592][ T68] Tainted: [W]=WARN [ 70.343593][ T68] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 70.343595][ T68] Workqueue: netns cleanup_net [ 70.343598][ T68] Call Trace: [ 70.343600][ T68] [ 70.343601][ T68] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 70.343607][ T68] ? vprintk_emit (kernel/printk/printk.c:2471) [ 70.343608][ T68] __might_resched.cold (kernel/sched/core.c:9234) [ 70.343613][ T68] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 70.343617][ T68] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 70.343622][ T68] __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)) [ 70.343624][ T68] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 70.343630][ T68] ? 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) [ 70.343633][ T68] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 70.343636][ T68] put_chars (drivers/char/virtio_console.c:1176) [ 70.343639][ T68] ? __send_to_port (drivers/char/virtio_console.c:654) [ 70.343640][ T68] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 70.343644][ T68] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 70.343646][ T68] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 70.343652][ T68] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 70.343655][ T68] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 70.343661][ T68] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 70.343664][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 70.343669][ T68] console_emit_next_record (kernel/printk/printk.c:3183) [ 70.343673][ T68] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 70.343675][ T68] ? 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)) [ 70.343678][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 70.343680][ T68] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 70.343684][ T68] console_flush_one_record (kernel/printk/printk.c:3268) [ 70.343688][ T68] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 70.343690][ T68] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 70.343695][ T68] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 70.343698][ T68] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 70.343700][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 70.343702][ T68] ? 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) [ 70.343705][ T68] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 70.343707][ T68] ? vprintk_emit (kernel/printk/printk.c:2478) [ 70.343710][ T68] vprintk_emit (kernel/printk/printk.c:2479) [ 70.343713][ T68] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 70.343714][ T68] ? cleanup_net (net/core/net_namespace.c:706) [ 70.343716][ T68] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 70.343718][ T68] ? kthread (kernel/kthread.c:436) [ 70.343720][ T68] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 70.343723][ T68] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 70.343728][ T68] _printk (kernel/printk/printk.c:2504) [ 70.343733][ T68] ? snapshot_read.cold (user.c:?) [ 70.343738][ T68] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 70.343741][ T68] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 70.343745][ T68] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 70.343748][ T68] ? netdev_notice (net/core/dev.c:13194) [ 70.343753][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 70.343754][ T68] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 70.343757][ T68] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 70.343759][ T68] ? 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) [ 70.343762][ T68] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 70.343766][ T68] dev_set_allmulti (net/core/dev_api.c:315) [ 70.343769][ T68] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 70.343773][ T68] ? unregister_netdevice_many (net/core/dev.c:12589) [ 70.343775][ T68] ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2)) [ 70.343779][ T68] br_dev_delete (net/bridge/br_if.c:387) [ 70.343783][ T68] br_net_exit_rtnl (net/bridge/br.c:414) [ 70.343787][ T68] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 70.343790][ T68] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 70.343794][ T68] ? netns_install (./include/linux/ns_common.h:26) [ 70.343796][ T68] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 70.343799][ T68] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 70.343803][ T68] cleanup_net (net/core/net_namespace.c:706) [ 70.343807][ T68] ? net_passive_dec (./include/linux/llist.h:241) [ 70.343810][ T68] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 70.343812][ T68] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 70.343816][ T68] process_one_work (kernel/workqueue.c:3387) [ 70.343822][ T68] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 70.343825][ T68] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 70.343833][ T68] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 70.343837][ T68] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 70.343839][ T68] ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272) [ 70.343842][ T68] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 70.343845][ T68] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 70.343847][ T68] kthread (kernel/kthread.c:436) [ 70.343849][ T68] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 70.343852][ T68] ? kthread_affine_preferred (kernel/kthread.c:857) [ 70.343855][ T68] ret_from_fork (arch/x86/kernel/process.c:158) [ 70.343858][ T68] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 70.343861][ T68] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 70.343865][ T68] ? 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