====================================== | [ 12.257004][ T244] softirqs last disabled at (20170): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 12.257007][ T244] Preemption disabled at: | [ 12.257007][ T244] vprintk_emit (kernel/printk/printk.c:2471) | [ 12.257016][ T244] Tainted: [W]=WARN [ 12.257017][ T244] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.257019][ T244] Call Trace: [ 12.257020][ T244] [ 12.257022][ T244] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.257027][ T244] ? vprintk_emit (kernel/printk/printk.c:2471) [ 12.257029][ T244] __might_resched.cold (kernel/sched/core.c:9234) [ 12.257034][ T244] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.257038][ 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) [ 12.257042][ 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)) [ 12.257044][ T244] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.257050][ 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) [ 12.257053][ T244] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.257056][ T244] put_chars (drivers/char/virtio_console.c:1176) [ 12.257059][ T244] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.257065][ T244] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.257072][ T244] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.257076][ T244] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.257080][ T244] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.257084][ T244] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.257086][ 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)) [ 12.257089][ T244] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.257091][ T244] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.257095][ T244] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.257099][ T244] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.257101][ T244] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.257106][ T244] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.257109][ T244] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.257111][ T244] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.257112][ 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) [ 12.257116][ T244] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.257118][ T244] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.257120][ T244] vprintk_emit (kernel/printk/printk.c:2479) [ 12.257123][ T244] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.257125][ T244] ? save_trace (kernel/locking/lockdep.c:589) [ 12.257130][ T244] _printk (kernel/printk/printk.c:2504) [ 12.257133][ T244] ? snapshot_read.cold (user.c:?) [ 12.257136][ T244] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 12.257138][ T244] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 12.257142][ T244] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 12.257145][ T244] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 12.257147][ T244] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 12.257150][ T244] ? netdev_notice (net/core/dev.c:13194) [ 12.257156][ T244] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.257159][ T244] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.257161][ T244] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 12.257164][ T244] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 12.257166][ T244] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 12.257168][ T244] ? register_netdev (net/core/dev.c:11618) [ 12.257170][ 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)) [ 12.257175][ T244] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 12.257177][ T244] ? __kernel_text_address (kernel/extable.c:79) [ 12.257180][ T244] ? write_profile (profile.c:?) [ 12.257184][ T244] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 12.257189][ T244] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 12.257193][ T244] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 12.257195][ T244] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 12.257196][ T244] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 12.257199][ T244] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 12.257202][ T244] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.257204][ T244] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.257206][ T244] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.257208][ T244] ? kasan_save_stack (mm/kasan/common.c:58) [ 12.257210][ T244] ? kasan_save_stack (mm/kasan/common.c:57) [ 12.257211][ T244] ? kasan_save_track (mm/kasan/common.c:78) [ 12.257212][ T244] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 12.257215][ T244] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.257217][ T244] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 12.257220][ T244] ? ___sys_sendmsg (net/socket.c:2758) [ 12.257223][ T244] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.257225][ T244] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 12.257228][ T244] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.257230][ T244] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.257231][ T244] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.257232][ T244] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.257234][ T244] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 12.257236][ 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) [ 12.257239][ T244] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 12.257241][ T244] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 12.257244][ T244] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 12.257245][ T244] ? nla_get_range_signed (lib/nlattr.c:270) [ 12.257250][ T244] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.257252][ T244] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 12.257257][ T244] rtnl_newlink (net/core/rtnetlink.c:4215) [ 12.257262][ T244] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.257264][ T244] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.257268][ T244] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.257270][ T244] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.257272][ T244] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.257274][ T244] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.257278][ T244] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.257280][ T244] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 12.257283][ T244] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 12.257284][ T244] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.257288][ T244] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.257290][ T244] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.257294][ T244] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 12.257297][ T244] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 12.257299][ T244] ? netlink_ack (./include/linux/skbuff.h:2718) [ 12.257306][ 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)) [ 12.257308][ 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)) [ 12.257312][ T244] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 12.257316][ T244] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 12.257319][ T244] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.257323][ T244] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 12.257327][ T244] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 12.257331][ T244] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.257332][ T244] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 12.257337][ T244] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 12.257340][ T244] ____sys_sendmsg (net/socket.c:2713) [ 12.257342][ T244] ? copy_msghdr_from_user (net/socket.c:2650) [ 12.257345][ T244] ? sock_write_iter (net/socket.c:1269) [ 12.257346][ T244] ? move_addr_to_kernel (net/socket.c:258) [ 12.257353][ T244] ___sys_sendmsg (net/socket.c:2767) [ 12.257356][ T244] ? copy_msghdr_from_user (net/socket.c:2619) [ 12.257372][ T244] __sys_sendmsg (net/socket.c:2799) [ 12.257374][ T244] ? __sys_sendmsg_sock (net/socket.c:2780) [ 12.257381][ T244] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.257384][ T244] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.257386][ T244] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.257389][ T244] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.257391][ T244] RIP: 0033:0x7f8109fe854e [ 12.257395][ 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 [ 12.257396][ T244] RSP: 002b:00007ffe7cc94f50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 12.257399][ T244] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f8109fe854e [ 12.257400][ T244] RDX: 0000000000000000 RSI: 00007ffe7cc95000 RDI: 0000000000000005 [ 12.257401][ T244] RBP: 00007ffe7cc94f60 R08: 0000000000000000 R09: 0000000000000000 [ 12.257402][ T244] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91060e [ 12.257403][ T244] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe7cc956d0 | [ 25.906138][ T12] softirqs last disabled at (9970): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 25.906141][ T12] Preemption disabled at: | [ 25.906141][ T12] vprintk_emit (kernel/printk/printk.c:2471) | [ 25.906154][ T12] Tainted: [W]=WARN [ 25.906155][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 25.906157][ T12] Workqueue: netns cleanup_net [ 25.906160][ T12] Call Trace: [ 25.906161][ T12] [ 25.906164][ T12] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 25.906170][ T12] ? vprintk_emit (kernel/printk/printk.c:2471) [ 25.906172][ T12] __might_resched.cold (kernel/sched/core.c:9234) [ 25.906177][ T12] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 25.906181][ 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) [ 25.906186][ 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)) [ 25.906188][ T12] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.906195][ 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) [ 25.906198][ T12] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.906202][ T12] put_chars (drivers/char/virtio_console.c:1176) [ 25.906204][ T12] ? __send_to_port (drivers/char/virtio_console.c:654) [ 25.906207][ T12] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 25.906213][ T12] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 25.906217][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.906222][ T12] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 25.906225][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.906231][ T12] console_emit_next_record (kernel/printk/printk.c:3183) [ 25.906235][ T12] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 25.906237][ 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)) [ 25.906240][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.906242][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.906246][ T12] console_flush_one_record (kernel/printk/printk.c:3268) [ 25.906250][ T12] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 25.906252][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.906258][ T12] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 25.906261][ T12] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 25.906263][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.906264][ 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) [ 25.906268][ T12] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 25.906270][ T12] ? vprintk_emit (kernel/printk/printk.c:2478) [ 25.906273][ T12] vprintk_emit (kernel/printk/printk.c:2479) [ 25.906276][ T12] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 25.906277][ T12] ? cleanup_net (net/core/net_namespace.c:706) [ 25.906279][ T12] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 25.906281][ T12] ? kthread (kernel/kthread.c:436) [ 25.906283][ T12] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 25.906287][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 25.906291][ T12] _printk (kernel/printk/printk.c:2504) [ 25.906295][ T12] ? snapshot_read.cold (user.c:?) [ 25.906300][ T12] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 25.906304][ T12] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 25.906308][ T12] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 25.906310][ T12] ? netdev_notice (net/core/dev.c:13194) [ 25.906315][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.906317][ T12] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 25.906319][ T12] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 25.906322][ 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) [ 25.906324][ T12] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 25.906328][ T12] dev_set_allmulti (net/core/dev_api.c:315) [ 25.906332][ T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 25.906335][ T12] ? unregister_netdevice_many (net/core/dev.c:12589) [ 25.906337][ 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)) [ 25.906342][ T12] br_dev_delete (net/bridge/br_if.c:387) [ 25.906346][ T12] br_net_exit_rtnl (net/bridge/br.c:414) [ 25.906350][ T12] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 25.906353][ T12] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 25.906357][ T12] ? netns_install (./include/linux/ns_common.h:26) [ 25.906359][ T12] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 25.906362][ T12] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 25.906367][ T12] cleanup_net (net/core/net_namespace.c:706) [ 25.906370][ T12] ? net_passive_dec (./include/linux/llist.h:241) [ 25.906374][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.906376][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.906380][ T12] process_one_work (kernel/workqueue.c:3387) [ 25.906387][ T12] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 25.906390][ T12] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 25.906397][ T12] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 25.906405][ T12] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 25.906407][ T12] kthread (kernel/kthread.c:436) [ 25.906409][ T12] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 25.906412][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 25.906415][ T12] ret_from_fork (arch/x86/kernel/process.c:158) [ 25.906418][ T12] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 25.906421][ T12] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 25.906425][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 25.906428][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 28.510788][ T473] softirqs last disabled at (19084): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 28.510791][ T473] Preemption disabled at: | [ 28.510792][ T473] vprintk_emit (kernel/printk/printk.c:2471) | [ 28.510803][ T473] Tainted: [W]=WARN [ 28.510804][ T473] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 28.510805][ T473] Call Trace: [ 28.510807][ T473] [ 28.510808][ T473] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 28.510814][ T473] ? vprintk_emit (kernel/printk/printk.c:2471) [ 28.510816][ T473] __might_resched.cold (kernel/sched/core.c:9234) [ 28.510820][ T473] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 28.510825][ T473] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 28.510829][ T473] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 28.510831][ T473] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 28.510837][ T473] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 28.510840][ T473] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 28.510844][ T473] put_chars (drivers/char/virtio_console.c:1176) [ 28.510846][ T473] ? __send_to_port (drivers/char/virtio_console.c:654) [ 28.510852][ T473] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 28.510860][ T473] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 28.510863][ T473] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.510867][ T473] console_emit_next_record (kernel/printk/printk.c:3183) [ 28.510871][ T473] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 28.510873][ T473] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 28.510876][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.510879][ T473] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.510883][ T473] console_flush_one_record (kernel/printk/printk.c:3268) [ 28.510887][ T473] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 28.510888][ T473] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.510893][ T473] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 28.510896][ T473] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 28.510898][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.510900][ T473] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 28.510903][ T473] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 28.510905][ T473] ? vprintk_emit (kernel/printk/printk.c:2478) [ 28.510908][ T473] vprintk_emit (kernel/printk/printk.c:2479) [ 28.510911][ T473] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 28.510913][ T473] ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6)) [ 28.510918][ T473] _printk (kernel/printk/printk.c:2504) [ 28.510922][ T473] ? snapshot_read.cold (user.c:?) [ 28.510924][ T473] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 28.510926][ T473] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 28.510929][ T473] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 28.510931][ T473] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 28.510935][ T473] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 28.510938][ T473] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 28.510940][ T473] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 28.510943][ T473] ? netdev_notice (net/core/dev.c:13194) [ 28.510945][ T473] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.510948][ T473] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 28.510951][ T473] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 28.510954][ T473] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 28.510956][ T473] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 28.510958][ T473] ? register_netdev (net/core/dev.c:11618) [ 28.510960][ T473] ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2)) [ 28.510965][ T473] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 28.510967][ T473] ? __kernel_text_address (kernel/extable.c:79) [ 28.510970][ T473] ? write_profile (profile.c:?) [ 28.510974][ T473] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 28.510980][ T473] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 28.510983][ T473] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 28.510985][ T473] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 28.510986][ T473] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 28.510988][ T473] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 28.510992][ T473] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 28.510993][ T473] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 28.510995][ T473] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 28.510998][ T473] ? kasan_save_stack (mm/kasan/common.c:58) [ 28.510999][ T473] ? kasan_save_stack (mm/kasan/common.c:57) [ 28.511001][ T473] ? kasan_save_track (mm/kasan/common.c:78) [ 28.511002][ T473] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 28.511004][ T473] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.511006][ T473] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 28.511009][ T473] ? ___sys_sendmsg (net/socket.c:2758) [ 28.511013][ T473] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.511014][ T473] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 28.511017][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.511019][ T473] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 28.511020][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.511021][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.511023][ T473] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 28.511025][ T473] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 28.511026][ T473] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 28.511028][ T473] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 28.511031][ T473] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 28.511033][ T473] ? nla_get_range_signed (lib/nlattr.c:270) [ 28.511038][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.511040][ T473] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 28.511045][ T473] rtnl_newlink (net/core/rtnetlink.c:4215) [ 28.511050][ T473] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 28.511052][ T473] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.511056][ T473] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.511058][ T473] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.511060][ T473] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 28.511062][ T473] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 28.511065][ T473] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 28.511067][ T473] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 28.511070][ T473] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 28.511072][ T473] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 28.511076][ T473] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 28.511078][ T473] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.511081][ T473] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 28.511085][ T473] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 28.511087][ T473] ? netlink_ack (./include/linux/skbuff.h:2718) [ 28.511094][ T473] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 28.511096][ T473] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 28.511100][ T473] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 28.511104][ T473] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 28.511106][ T473] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 28.511111][ T473] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 28.511114][ T473] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 28.511118][ T473] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 28.511120][ T473] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 28.511125][ T473] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 28.511128][ T473] ____sys_sendmsg (net/socket.c:2713) [ 28.511130][ T473] ? copy_msghdr_from_user (net/socket.c:2650) [ 28.511132][ T473] ? sock_write_iter (net/socket.c:1269) [ 28.511134][ T473] ? move_addr_to_kernel (net/socket.c:258) [ 28.511141][ T473] ___sys_sendmsg (net/socket.c:2767) [ 28.511144][ T473] ? copy_msghdr_from_user (net/socket.c:2619) [ 28.511162][ T473] __sys_sendmsg (net/socket.c:2799) [ 28.511165][ T473] ? __sys_sendmsg_sock (net/socket.c:2780) [ 28.511171][ T473] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 28.511174][ T473] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 28.511177][ T473] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 28.511180][ T473] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 28.511182][ T473] RIP: 0033:0x7f0db087a54e [ 28.511186][ T473] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 28.511187][ T473] RSP: 002b:00007ffd6b618a50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 28.511191][ T473] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f0db087a54e [ 28.511192][ T473] RDX: 0000000000000000 RSI: 00007ffd6b618b00 RDI: 0000000000000005 [ 28.511193][ T473] RBP: 00007ffd6b618a60 R08: 0000000000000000 R09: 0000000000000000 [ 28.511193][ T473] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91061e [ 28.511194][ T473] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd6b6191d0 | [ 42.237557][ T12] softirqs last disabled at (176586): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 42.237559][ T12] Preemption disabled at: | [ 42.237560][ T12] vprintk_emit (kernel/printk/printk.c:2471) | [ 42.237568][ T12] Tainted: [W]=WARN [ 42.237569][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 42.237571][ T12] Workqueue: netns cleanup_net [ 42.237574][ T12] Call Trace: [ 42.237576][ T12] [ 42.237578][ T12] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 42.237584][ T12] ? vprintk_emit (kernel/printk/printk.c:2471) [ 42.237585][ T12] __might_resched.cold (kernel/sched/core.c:9234) [ 42.237590][ T12] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 42.237594][ 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) [ 42.237598][ 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)) [ 42.237600][ T12] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 42.237607][ 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) [ 42.237610][ T12] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 42.237614][ T12] put_chars (drivers/char/virtio_console.c:1176) [ 42.237616][ T12] ? __send_to_port (drivers/char/virtio_console.c:654) [ 42.237617][ T12] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 42.237621][ T12] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 42.237624][ T12] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 42.237628][ T12] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 42.237632][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 42.237638][ T12] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 42.237641][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.237646][ T12] console_emit_next_record (kernel/printk/printk.c:3183) [ 42.237650][ T12] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 42.237652][ 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)) [ 42.237655][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.237657][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 42.237661][ T12] console_flush_one_record (kernel/printk/printk.c:3268) [ 42.237666][ T12] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 42.237667][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 42.237673][ T12] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 42.237676][ T12] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 42.237678][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.237679][ 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) [ 42.237683][ T12] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 42.237685][ T12] ? vprintk_emit (kernel/printk/printk.c:2478) [ 42.237688][ T12] vprintk_emit (kernel/printk/printk.c:2479) [ 42.237691][ T12] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 42.237692][ T12] ? cleanup_net (net/core/net_namespace.c:706) [ 42.237694][ T12] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 42.237696][ T12] ? kthread (kernel/kthread.c:436) [ 42.237698][ T12] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 42.237701][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 42.237706][ T12] _printk (kernel/printk/printk.c:2504) [ 42.237710][ T12] ? snapshot_read.cold (user.c:?) [ 42.237714][ T12] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 42.237718][ T12] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 42.237722][ T12] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 42.237724][ T12] ? netdev_notice (net/core/dev.c:13194) [ 42.237729][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.237731][ T12] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 42.237733][ T12] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 42.237735][ 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) [ 42.237738][ T12] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 42.237742][ T12] dev_set_allmulti (net/core/dev_api.c:315) [ 42.237745][ T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 42.237749][ T12] ? unregister_netdevice_many (net/core/dev.c:12589) [ 42.237750][ 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)) [ 42.237755][ T12] br_dev_delete (net/bridge/br_if.c:387) [ 42.237759][ T12] br_net_exit_rtnl (net/bridge/br.c:414) [ 42.237762][ T12] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 42.237766][ T12] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 42.237770][ T12] ? netns_install (./include/linux/ns_common.h:26) [ 42.237771][ T12] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 42.237775][ T12] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 42.237779][ T12] cleanup_net (net/core/net_namespace.c:706) [ 42.237783][ T12] ? net_passive_dec (./include/linux/llist.h:241) [ 42.237786][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 42.237788][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.237792][ T12] process_one_work (kernel/workqueue.c:3387) [ 42.237799][ T12] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 42.237802][ T12] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 42.237810][ T12] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 42.237817][ T12] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 42.237819][ T12] kthread (kernel/kthread.c:436) [ 42.237821][ T12] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 42.237824][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 42.237827][ T12] ret_from_fork (arch/x86/kernel/process.c:158) [ 42.237830][ T12] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 42.237833][ T12] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 42.237837][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 42.237839][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 44.873773][ T712] softirqs last disabled at (22674): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 44.873776][ T712] Preemption disabled at: | [ 44.873777][ T712] vprintk_emit (kernel/printk/printk.c:2471) | [ 44.873785][ T712] Tainted: [W]=WARN [ 44.873786][ T712] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 44.873788][ T712] Call Trace: [ 44.873789][ T712] [ 44.873791][ T712] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 44.873797][ T712] ? vprintk_emit (kernel/printk/printk.c:2471) [ 44.873798][ T712] __might_resched.cold (kernel/sched/core.c:9234) [ 44.873803][ T712] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 44.873807][ 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) [ 44.873811][ 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)) [ 44.873813][ T712] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 44.873820][ 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) [ 44.873822][ T712] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 44.873826][ T712] put_chars (drivers/char/virtio_console.c:1176) [ 44.873828][ T712] ? __send_to_port (drivers/char/virtio_console.c:654) [ 44.873835][ T712] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 44.873842][ T712] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 44.873845][ T712] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 44.873850][ T712] console_emit_next_record (kernel/printk/printk.c:3183) [ 44.873853][ T712] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 44.873855][ 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)) [ 44.873858][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.873861][ T712] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 44.873865][ T712] console_flush_one_record (kernel/printk/printk.c:3268) [ 44.873869][ T712] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 44.873871][ T712] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 44.873876][ T712] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 44.873879][ T712] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 44.873881][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.873882][ 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) [ 44.873886][ T712] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 44.873888][ T712] ? vprintk_emit (kernel/printk/printk.c:2478) [ 44.873890][ T712] vprintk_emit (kernel/printk/printk.c:2479) [ 44.873893][ T712] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 44.873896][ T712] ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6)) [ 44.873902][ T712] _printk (kernel/printk/printk.c:2504) [ 44.873905][ T712] ? snapshot_read.cold (user.c:?) [ 44.873907][ T712] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 44.873909][ T712] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 44.873912][ T712] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 44.873914][ T712] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 44.873918][ T712] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 44.873920][ T712] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 44.873923][ T712] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 44.873926][ T712] ? netdev_notice (net/core/dev.c:13194) [ 44.873928][ T712] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 44.873931][ T712] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 44.873934][ T712] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 44.873937][ T712] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 44.873939][ T712] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 44.873941][ T712] ? register_netdev (net/core/dev.c:11618) [ 44.873943][ 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)) [ 44.873948][ T712] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 44.873950][ T712] ? __kernel_text_address (kernel/extable.c:79) [ 44.873953][ T712] ? write_profile (profile.c:?) [ 44.873957][ T712] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 44.873963][ T712] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 44.873966][ T712] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 44.873968][ T712] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 44.873969][ T712] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 44.873971][ T712] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 44.873974][ T712] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 44.873976][ T712] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 44.873978][ T712] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 44.873980][ T712] ? kasan_save_stack (mm/kasan/common.c:58) [ 44.873982][ T712] ? kasan_save_stack (mm/kasan/common.c:57) [ 44.873983][ T712] ? kasan_save_track (mm/kasan/common.c:78) [ 44.873984][ T712] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 44.873987][ T712] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 44.873988][ T712] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 44.873991][ T712] ? ___sys_sendmsg (net/socket.c:2758) [ 44.873995][ T712] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 44.873997][ T712] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 44.874000][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.874001][ T712] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 44.874003][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.874004][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.874005][ T712] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 44.874008][ 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) [ 44.874009][ T712] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 44.874011][ T712] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 44.874014][ T712] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 44.874015][ T712] ? nla_get_range_signed (lib/nlattr.c:270) [ 44.874020][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.874022][ T712] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 44.874027][ T712] rtnl_newlink (net/core/rtnetlink.c:4215) [ 44.874032][ T712] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 44.874034][ T712] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 44.874038][ T712] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 44.874040][ T712] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 44.874042][ T712] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 44.874044][ T712] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 44.874047][ T712] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 44.874049][ T712] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 44.874052][ T712] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 44.874054][ T712] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 44.874058][ T712] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 44.874060][ T712] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 44.874063][ T712] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 44.874067][ T712] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 44.874070][ T712] ? netlink_ack (./include/linux/skbuff.h:2718) [ 44.874076][ 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)) [ 44.874078][ 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)) [ 44.874082][ T712] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 44.874086][ T712] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 44.874089][ T712] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 44.874093][ T712] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 44.874097][ T712] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 44.874100][ T712] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 44.874102][ T712] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 44.874107][ T712] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 44.874110][ T712] ____sys_sendmsg (net/socket.c:2713) [ 44.874112][ T712] ? copy_msghdr_from_user (net/socket.c:2650) [ 44.874114][ T712] ? sock_write_iter (net/socket.c:1269) [ 44.874116][ T712] ? move_addr_to_kernel (net/socket.c:258) [ 44.874123][ T712] ___sys_sendmsg (net/socket.c:2767) [ 44.874126][ T712] ? copy_msghdr_from_user (net/socket.c:2619) [ 44.874141][ T712] __sys_sendmsg (net/socket.c:2799) [ 44.874144][ T712] ? __sys_sendmsg_sock (net/socket.c:2780) [ 44.874150][ T712] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 44.874156][ T712] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 44.874159][ T712] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 44.874162][ T712] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 44.874165][ T712] RIP: 0033:0x7fc0c16ac54e [ 44.874168][ 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 [ 44.874170][ T712] RSP: 002b:00007ffe9a70aa60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 44.874173][ T712] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fc0c16ac54e [ 44.874174][ T712] RDX: 0000000000000000 RSI: 00007ffe9a70ab10 RDI: 0000000000000005 [ 44.874175][ T712] RBP: 00007ffe9a70aa70 R08: 0000000000000000 R09: 0000000000000000 [ 44.874176][ T712] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91062e [ 44.874177][ T712] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe9a70b1e0 | [ 58.685203][ T12] softirqs last disabled at (351680): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 58.685205][ T12] Preemption disabled at: | [ 58.685206][ T12] vprintk_emit (kernel/printk/printk.c:2471) | [ 58.685214][ T12] Tainted: [W]=WARN [ 58.685215][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 58.685216][ T12] Workqueue: netns cleanup_net [ 58.685220][ T12] Call Trace: [ 58.685221][ T12] [ 58.685223][ T12] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 58.685229][ T12] ? vprintk_emit (kernel/printk/printk.c:2471) [ 58.685231][ T12] __might_resched.cold (kernel/sched/core.c:9234) [ 58.685235][ T12] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 58.685239][ 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) [ 58.685243][ 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)) [ 58.685245][ T12] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 58.685252][ 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) [ 58.685255][ T12] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 58.685259][ T12] put_chars (drivers/char/virtio_console.c:1176) [ 58.685261][ T12] ? __send_to_port (drivers/char/virtio_console.c:654) [ 58.685262][ T12] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 58.685266][ T12] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 58.685269][ T12] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 58.685274][ T12] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 58.685278][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 58.685283][ T12] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 58.685286][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 58.685291][ T12] console_emit_next_record (kernel/printk/printk.c:3183) [ 58.685295][ T12] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 58.685297][ 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)) [ 58.685300][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 58.685302][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 58.685306][ T12] console_flush_one_record (kernel/printk/printk.c:3268) [ 58.685310][ T12] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 58.685312][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 58.685317][ T12] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 58.685320][ T12] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 58.685322][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 58.685324][ 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) [ 58.685327][ T12] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 58.685329][ T12] ? vprintk_emit (kernel/printk/printk.c:2478) [ 58.685332][ T12] vprintk_emit (kernel/printk/printk.c:2479) [ 58.685335][ T12] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 58.685336][ T12] ? cleanup_net (net/core/net_namespace.c:706) [ 58.685338][ T12] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 58.685340][ T12] ? kthread (kernel/kthread.c:436) [ 58.685342][ T12] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 58.685345][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 58.685349][ T12] _printk (kernel/printk/printk.c:2504) [ 58.685353][ T12] ? snapshot_read.cold (user.c:?) [ 58.685358][ T12] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 58.685361][ T12] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 58.685365][ T12] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 58.685368][ T12] ? netdev_notice (net/core/dev.c:13194) [ 58.685372][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 58.685374][ T12] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 58.685376][ T12] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 58.685378][ 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) [ 58.685381][ T12] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 58.685385][ T12] dev_set_allmulti (net/core/dev_api.c:315) [ 58.685388][ T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 58.685392][ T12] ? unregister_netdevice_many (net/core/dev.c:12589) [ 58.685393][ 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)) [ 58.685398][ T12] br_dev_delete (net/bridge/br_if.c:387) [ 58.685402][ T12] br_net_exit_rtnl (net/bridge/br.c:414) [ 58.685406][ T12] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 58.685409][ T12] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 58.685413][ T12] ? netns_install (./include/linux/ns_common.h:26) [ 58.685415][ T12] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 58.685418][ T12] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 58.685423][ T12] cleanup_net (net/core/net_namespace.c:706) [ 58.685426][ T12] ? net_passive_dec (./include/linux/llist.h:241) [ 58.685429][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 58.685431][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 58.685435][ T12] process_one_work (kernel/workqueue.c:3387) [ 58.685441][ T12] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 58.685444][ T12] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 58.685452][ T12] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 58.685459][ T12] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 58.685461][ T12] kthread (kernel/kthread.c:436) [ 58.685463][ T12] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 58.685466][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 58.685469][ T12] ret_from_fork (arch/x86/kernel/process.c:158) [ 58.685472][ T12] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 58.685475][ T12] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 58.685478][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 58.685481][ T12] ret_from_fork_asm (arch/x86/entry/entry_64.S:245) | [ 61.088948][ T951] softirqs last disabled at (18194): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 61.088951][ T951] Preemption disabled at: | [ 61.088951][ T951] vprintk_emit (kernel/printk/printk.c:2471) | [ 61.088959][ T951] Tainted: [W]=WARN [ 61.088960][ T951] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 61.088962][ T951] Call Trace: [ 61.088964][ T951] [ 61.088965][ T951] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 61.088971][ T951] ? vprintk_emit (kernel/printk/printk.c:2471) [ 61.088973][ T951] __might_resched.cold (kernel/sched/core.c:9234) [ 61.088977][ T951] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 61.088981][ T951] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 61.088985][ T951] __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2)) [ 61.088987][ T951] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 61.088994][ T951] ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) [ 61.088997][ T951] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 61.089001][ T951] put_chars (drivers/char/virtio_console.c:1176) [ 61.089003][ T951] ? __send_to_port (drivers/char/virtio_console.c:654) [ 61.089009][ T951] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 61.089017][ T951] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 61.089020][ T951] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 61.089024][ T951] console_emit_next_record (kernel/printk/printk.c:3183) [ 61.089029][ T951] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 61.089030][ T951] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 61.089034][ T951] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 61.089036][ T951] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 61.089040][ T951] console_flush_one_record (kernel/printk/printk.c:3268) [ 61.089044][ T951] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 61.089046][ T951] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 61.089052][ T951] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 61.089055][ T951] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 61.089056][ T951] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 61.089058][ T951] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 61.089062][ T951] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 61.089064][ T951] ? vprintk_emit (kernel/printk/printk.c:2478) [ 61.089066][ T951] vprintk_emit (kernel/printk/printk.c:2479) [ 61.089069][ T951] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 61.089072][ T951] ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6)) [ 61.089077][ T951] _printk (kernel/printk/printk.c:2504) [ 61.089081][ T951] ? snapshot_read.cold (user.c:?) [ 61.089082][ T951] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 61.089085][ T951] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 61.089088][ T951] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 61.089090][ T951] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 61.089094][ T951] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 61.089097][ T951] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 61.089099][ T951] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 61.089102][ T951] ? netdev_notice (net/core/dev.c:13194) [ 61.089105][ T951] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 61.089108][ T951] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 61.089111][ T951] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 61.089114][ T951] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 61.089116][ T951] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 61.089118][ T951] ? register_netdev (net/core/dev.c:11618) [ 61.089120][ T951] ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2)) [ 61.089125][ T951] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 61.089127][ T951] ? __kernel_text_address (kernel/extable.c:79) [ 61.089130][ T951] ? write_profile (profile.c:?) [ 61.089134][ T951] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 61.089140][ T951] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 61.089143][ T951] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 61.089145][ T951] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 61.089146][ T951] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 61.089148][ T951] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 61.089155][ T951] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 61.089157][ T951] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 61.089159][ T951] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 61.089161][ T951] ? kasan_save_stack (mm/kasan/common.c:58) [ 61.089163][ T951] ? kasan_save_stack (mm/kasan/common.c:57) [ 61.089164][ T951] ? kasan_save_track (mm/kasan/common.c:78) [ 61.089165][ T951] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 61.089168][ T951] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 61.089170][ T951] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 61.089172][ T951] ? ___sys_sendmsg (net/socket.c:2758) [ 61.089176][ T951] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 61.089178][ T951] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 61.089181][ T951] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 61.089182][ T951] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 61.089184][ T951] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 61.089185][ T951] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 61.089187][ T951] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 61.089189][ T951] ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821) [ 61.089190][ T951] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 61.089192][ T951] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 61.089195][ T951] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 61.089197][ T951] ? nla_get_range_signed (lib/nlattr.c:270) [ 61.089201][ T951] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 61.089204][ T951] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 61.089209][ T951] rtnl_newlink (net/core/rtnetlink.c:4215) [ 61.089214][ T951] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 61.089216][ T951] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 61.089220][ T951] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 61.089222][ T951] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 61.089224][ T951] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 61.089226][ T951] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 61.089229][ T951] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 61.089231][ T951] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 61.089234][ T951] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 61.089236][ T951] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 61.089240][ T951] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 61.089242][ T951] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 61.089245][ T951] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 61.089248][ T951] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 61.089251][ T951] ? netlink_ack (./include/linux/skbuff.h:2718) [ 61.089257][ T951] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2)) [ 61.089259][ T951] ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2)) [ 61.089264][ T951] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 61.089268][ T951] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 61.089270][ T951] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 61.089275][ T951] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 61.089278][ T951] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 61.089282][ T951] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 61.089284][ T951] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 61.089289][ T951] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 61.089292][ T951] ____sys_sendmsg (net/socket.c:2713) [ 61.089294][ T951] ? copy_msghdr_from_user (net/socket.c:2650) [ 61.089296][ T951] ? sock_write_iter (net/socket.c:1269) [ 61.089298][ T951] ? move_addr_to_kernel (net/socket.c:258) [ 61.089305][ T951] ___sys_sendmsg (net/socket.c:2767) [ 61.089308][ T951] ? copy_msghdr_from_user (net/socket.c:2619) [ 61.089323][ T951] __sys_sendmsg (net/socket.c:2799) [ 61.089326][ T951] ? __sys_sendmsg_sock (net/socket.c:2780) [ 61.089332][ T951] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 61.089335][ T951] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 61.089338][ T951] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 61.089341][ T951] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 61.089344][ T951] RIP: 0033:0x7f361574454e [ 61.089347][ T951] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa All code ======== 0: 4d 89 d8 mov %r11,%r8 3: e8 b4 bd 00 00 call 0xbdbc 8: 4c 8b 5d f8 mov -0x8(%rbp),%r11 c: 41 8b 93 08 03 00 00 mov 0x308(%r11),%edx 13: 59 pop %rcx 14: 5e pop %rsi 15: 48 83 f8 fc cmp $0xfffffffffffffffc,%rax 19: 74 11 je 0x2c 1b: c9 leave 1c: c3 ret 1d: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 24: 48 8b 45 10 mov 0x10(%rbp),%rax 28: 0f 05 syscall 2a:* c9 leave <-- trapping instruction 2b: c3 ret 2c: 83 e2 39 and $0x39,%edx 2f: 83 fa 08 cmp $0x8,%edx 32: 75 e7 jne 0x1b 34: e8 03 ff ff ff call 0xffffffffffffff3c 39: 0f 1f 00 nopl (%rax) 3c: f3 0f 1e fa endbr64 Code starting with the faulting instruction =========================================== 0: c9 leave 1: c3 ret 2: 83 e2 39 and $0x39,%edx 5: 83 fa 08 cmp $0x8,%edx 8: 75 e7 jne 0xfffffffffffffff1 a: e8 03 ff ff ff call 0xffffffffffffff12 f: 0f 1f 00 nopl (%rax) 12: f3 0f 1e fa endbr64 [ 61.089349][ T951] RSP: 002b:00007ffd15ed0df0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 61.089352][ T951] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f361574454e [ 61.089353][ T951] RDX: 0000000000000000 RSI: 00007ffd15ed0ea0 RDI: 0000000000000005 [ 61.089354][ T951] RBP: 00007ffd15ed0e00 R08: 0000000000000000 R09: 0000000000000000 [ 61.089355][ T951] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91063f [ 61.089356][ T951] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd15ed1570 | [ 75.039812][ T12] softirqs last disabled at (519084): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 75.039815][ T12] Preemption disabled at: | [ 75.039815][ T12] vprintk_emit (kernel/printk/printk.c:2471) | [ 75.039824][ T12] Tainted: [W]=WARN [ 75.039825][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 75.039827][ T12] Workqueue: netns cleanup_net [ 75.039830][ T12] Call Trace: [ 75.039831][ T12] [ 75.039833][ T12] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 75.039839][ T12] ? vprintk_emit (kernel/printk/printk.c:2471) [ 75.039841][ T12] __might_resched.cold (kernel/sched/core.c:9234) [ 75.039845][ T12] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 75.039850][ 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) [ 75.039854][ 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)) [ 75.039856][ T12] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 75.039863][ 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) [ 75.039866][ T12] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 75.039869][ T12] put_chars (drivers/char/virtio_console.c:1176) [ 75.039872][ T12] ? __send_to_port (drivers/char/virtio_console.c:654) [ 75.039873][ T12] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 75.039877][ T12] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 75.039880][ T12] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 75.039885][ T12] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 75.039889][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 75.039894][ T12] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 75.039898][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 75.039904][ T12] console_emit_next_record (kernel/printk/printk.c:3183) [ 75.039909][ T12] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 75.039911][ 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)) [ 75.039914][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 75.039916][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 75.039921][ T12] console_flush_one_record (kernel/printk/printk.c:3268) [ 75.039925][ T12] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 75.039927][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 75.039933][ T12] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 75.039936][ T12] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 75.039938][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 75.039940][ 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) [ 75.039943][ T12] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 75.039945][ T12] ? vprintk_emit (kernel/printk/printk.c:2478) [ 75.039948][ T12] vprintk_emit (kernel/printk/printk.c:2479) [ 75.039952][ T12] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 75.039953][ T12] ? cleanup_net (net/core/net_namespace.c:706) [ 75.039955][ T12] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 75.039957][ T12] ? kthread (kernel/kthread.c:436) [ 75.039959][ T12] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 75.039962][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 75.039967][ T12] _printk (kernel/printk/printk.c:2504) [ 75.039971][ T12] ? snapshot_read.cold (user.c:?) [ 75.039976][ T12] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 75.039980][ T12] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 75.039984][ T12] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 75.039987][ T12] ? netdev_notice (net/core/dev.c:13194) [ 75.039991][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 75.039993][ T12] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 75.039996][ T12] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 75.039998][ 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) [ 75.040000][ T12] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 75.040005][ T12] dev_set_allmulti (net/core/dev_api.c:315) [ 75.040008][ T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 75.040012][ T12] ? unregister_netdevice_many (net/core/dev.c:12589) [ 75.040014][ 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)) [ 75.040019][ T12] br_dev_delete (net/bridge/br_if.c:387) [ 75.040023][ T12] br_net_exit_rtnl (net/bridge/br.c:414) [ 75.040026][ T12] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 75.040030][ T12] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 75.040034][ T12] ? netns_install (./include/linux/ns_common.h:26) [ 75.040036][ T12] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 75.040039][ T12] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 75.040044][ T12] cleanup_net (net/core/net_namespace.c:706) [ 75.040047][ T12] ? net_passive_dec (./include/linux/llist.h:241) [ 75.040051][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 75.040053][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 75.040057][ T12] process_one_work (kernel/workqueue.c:3387) [ 75.040064][ T12] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 75.040067][ T12] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 75.040075][ T12] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 75.040082][ T12] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 75.040085][ T12] kthread (kernel/kthread.c:436) [ 75.040086][ T12] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 75.040090][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 75.040093][ T12] ret_from_fork (arch/x86/kernel/process.c:158) [ 75.040096][ T12] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 75.040099][ T12] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 75.040103][ 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