====================================== | [ 10.153164][ T225] softirqs last disabled at (13806): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 10.153167][ T225] Preemption disabled at: | [ 10.153167][ T225] vprintk_emit (kernel/printk/printk.c:2471) | [ 10.153176][ T225] Tainted: [W]=WARN [ 10.153177][ T225] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.153179][ T225] Call Trace: [ 10.153180][ T225] [ 10.153182][ T225] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.153188][ T225] ? vprintk_emit (kernel/printk/printk.c:2471) [ 10.153189][ T225] __might_resched.cold (kernel/sched/core.c:9234) [ 10.153194][ T225] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.153198][ T225] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.153203][ T225] __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)) [ 10.153205][ T225] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.153212][ T225] ? 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) [ 10.153214][ T225] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.153218][ T225] put_chars (drivers/char/virtio_console.c:1176) [ 10.153220][ T225] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.153227][ T225] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.153234][ T225] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.153238][ T225] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.153242][ T225] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.153246][ T225] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.153248][ T225] ? 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)) [ 10.153251][ T225] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.153254][ T225] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.153258][ T225] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.153262][ T225] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.153264][ T225] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.153269][ T225] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.153272][ T225] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.153274][ T225] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.153276][ T225] ? 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) [ 10.153280][ T225] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.153281][ T225] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.153284][ T225] vprintk_emit (kernel/printk/printk.c:2479) [ 10.153287][ T225] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.153289][ T225] ? save_trace (kernel/locking/lockdep.c:589) [ 10.153294][ T225] _printk (kernel/printk/printk.c:2504) [ 10.153297][ T225] ? snapshot_read.cold (user.c:?) [ 10.153301][ T225] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 10.153303][ T225] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 10.153307][ T225] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 10.153309][ T225] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.153312][ T225] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 10.153314][ T225] ? netdev_notice (net/core/dev.c:13194) [ 10.153317][ T225] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.153320][ T225] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.153323][ T225] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 10.153326][ T225] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.153334][ T225] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 10.153337][ T225] ? 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)) [ 10.153342][ T225] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 10.153345][ T225] ? __kernel_text_address (kernel/extable.c:79) [ 10.153347][ T225] ? write_profile (profile.c:?) [ 10.153351][ T225] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 10.153357][ T225] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.153360][ T225] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 10.153363][ T225] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 10.153364][ T225] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 10.153367][ T225] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 10.153370][ T225] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.153372][ T225] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 10.153374][ T225] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.153377][ T225] ? kasan_save_stack (mm/kasan/common.c:58) [ 10.153378][ T225] ? kasan_save_stack (mm/kasan/common.c:57) [ 10.153380][ T225] ? kasan_save_track (mm/kasan/common.c:78) [ 10.153381][ T225] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 10.153383][ T225] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.153385][ T225] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 10.153388][ T225] ? ___sys_sendmsg (net/socket.c:2758) [ 10.153392][ T225] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.153394][ T225] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.153396][ T225] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.153398][ T225] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.153399][ T225] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.153401][ T225] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.153402][ T225] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 10.153405][ T225] ? __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) [ 10.153407][ T225] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 10.153409][ T225] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.153412][ T225] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 10.153414][ T225] ? nla_get_range_signed (lib/nlattr.c:270) [ 10.153418][ T225] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.153421][ T225] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 10.153426][ T225] rtnl_newlink (net/core/rtnetlink.c:4215) [ 10.153431][ T225] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.153433][ T225] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.153438][ T225] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.153440][ T225] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.153442][ T225] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.153443][ T225] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.153447][ T225] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.153449][ T225] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 10.153452][ T225] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.153454][ T225] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.153458][ T225] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.153460][ T225] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.153464][ T225] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 10.153467][ T225] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.153470][ T225] ? netlink_ack (./include/linux/skbuff.h:2718) [ 10.153476][ T225] ? 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)) [ 10.153478][ T225] ? 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)) [ 10.153483][ T225] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 10.153487][ T225] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 10.153489][ T225] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.153493][ T225] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 10.153497][ T225] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 10.153501][ T225] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.153503][ T225] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 10.153508][ T225] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 10.153511][ T225] ____sys_sendmsg (net/socket.c:2713) [ 10.153513][ T225] ? copy_msghdr_from_user (net/socket.c:2650) [ 10.153518][ T225] ? sock_write_iter (net/socket.c:1269) [ 10.153519][ T225] ? move_addr_to_kernel (net/socket.c:258) [ 10.153527][ T225] ___sys_sendmsg (net/socket.c:2767) [ 10.153529][ T225] ? copy_msghdr_from_user (net/socket.c:2619) [ 10.153546][ T225] __sys_sendmsg (net/socket.c:2799) [ 10.153548][ T225] ? __sys_sendmsg_sock (net/socket.c:2780) [ 10.153555][ T225] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.153558][ T225] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.153560][ T225] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.153563][ T225] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.153565][ T225] RIP: 0033:0x7f744029a54e [ 10.153569][ T225] 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 [ 10.153571][ T225] RSP: 002b:00007ffe72831f50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 10.153573][ T225] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f744029a54e [ 10.153574][ T225] RDX: 0000000000000000 RSI: 00007ffe72832000 RDI: 0000000000000005 [ 10.153575][ T225] RBP: 00007ffe72831f60 R08: 0000000000000000 R09: 0000000000000000 [ 10.153576][ T225] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a917499 [ 10.153577][ T225] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe728326d0 | [ 11.192677][ T272] softirqs last disabled at (15284): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 11.192680][ T272] Preemption disabled at: | [ 11.192680][ T272] vprintk_emit (kernel/printk/printk.c:2471) | [ 11.192689][ T272] Tainted: [W]=WARN [ 11.192690][ T272] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.192691][ T272] Call Trace: [ 11.192693][ T272] [ 11.192695][ T272] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.192701][ T272] ? vprintk_emit (kernel/printk/printk.c:2471) [ 11.192702][ T272] __might_resched.cold (kernel/sched/core.c:9234) [ 11.192707][ T272] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.192711][ T272] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.192715][ T272] __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)) [ 11.192717][ T272] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.192724][ T272] ? 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) [ 11.192727][ T272] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.192731][ T272] put_chars (drivers/char/virtio_console.c:1176) [ 11.192733][ T272] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.192735][ T272] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.192738][ T272] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.192744][ T272] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.192752][ T272] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.192754][ T272] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.192756][ T272] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.192761][ T272] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.192765][ T272] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.192767][ T272] ? 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)) [ 11.192770][ T272] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.192772][ T272] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.192775][ T272] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.192780][ T272] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.192782][ T272] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.192787][ T272] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.192790][ T272] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.192792][ T272] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.192793][ T272] ? 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) [ 11.192797][ T272] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.192799][ T272] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.192802][ T272] vprintk_emit (kernel/printk/printk.c:2479) [ 11.192805][ T272] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.192807][ T272] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.192809][ T272] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 11.192813][ T272] _printk (kernel/printk/printk.c:2504) [ 11.192816][ T272] ? snapshot_read.cold (user.c:?) [ 11.192820][ T272] ? br_multicast_flood (??:?) [ 11.192823][ T272] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 11.192825][ T272] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 11.192826][ T272] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.192830][ T272] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 11.192834][ T272] br_init_port (net/bridge/br_stp_if.c:39) [ 11.192837][ T272] new_nbp (net/bridge/br_if.c:449) [ 11.192841][ T272] br_add_if (net/bridge/br_if.c:592) [ 11.192843][ T272] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 11.192847][ T272] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 11.192852][ T272] do_set_master (net/core/rtnetlink.c:3071) [ 11.192856][ T272] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 11.192859][ T272] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 11.192863][ T272] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 11.192864][ T272] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 11.192867][ T272] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 11.192870][ T272] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.192872][ T272] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.192874][ T272] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.192876][ T272] ? kasan_save_stack (mm/kasan/common.c:58) [ 11.192879][ T272] ? kasan_save_stack (mm/kasan/common.c:57) [ 11.192880][ T272] ? kasan_save_track (mm/kasan/common.c:78) [ 11.192881][ T272] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 11.192883][ T272] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.192885][ T272] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 11.192888][ T272] ? ___sys_sendmsg (net/socket.c:2758) [ 11.192892][ T272] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.192894][ T272] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.192897][ T272] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.192898][ T272] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.192900][ T272] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.192901][ T272] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.192903][ T272] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 11.192905][ T272] ? __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) [ 11.192908][ T272] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 11.192910][ T272] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.192913][ T272] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 11.192914][ T272] ? nla_get_range_signed (lib/nlattr.c:270) [ 11.192919][ T272] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.192922][ T272] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 11.192927][ T272] rtnl_newlink (net/core/rtnetlink.c:4215) [ 11.192932][ T272] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.192934][ T272] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.192939][ T272] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.192941][ T272] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.192943][ T272] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.192945][ T272] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.192948][ T272] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.192950][ T272] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.192953][ T272] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.192955][ T272] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.192960][ T272] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.192961][ T272] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.192965][ T272] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 11.192968][ T272] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.192971][ T272] ? netlink_ack (./include/linux/skbuff.h:2718) [ 11.192977][ T272] ? 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)) [ 11.192980][ T272] ? 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)) [ 11.192984][ T272] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 11.192988][ T272] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 11.192991][ T272] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.192995][ T272] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 11.192999][ T272] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 11.193003][ T272] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.193004][ T272] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 11.193010][ T272] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 11.193012][ T272] ____sys_sendmsg (net/socket.c:2713) [ 11.193015][ T272] ? copy_msghdr_from_user (net/socket.c:2650) [ 11.193017][ T272] ? sock_write_iter (net/socket.c:1269) [ 11.193019][ T272] ? move_addr_to_kernel (net/socket.c:258) [ 11.193026][ T272] ___sys_sendmsg (net/socket.c:2767) [ 11.193029][ T272] ? copy_msghdr_from_user (net/socket.c:2619) [ 11.193045][ T272] __sys_sendmsg (net/socket.c:2799) [ 11.193048][ T272] ? __sys_sendmsg_sock (net/socket.c:2780) [ 11.193054][ T272] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.193057][ T272] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.193060][ T272] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.193063][ T272] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.193065][ T272] RIP: 0033:0x7f556851d54e [ 11.193069][ T272] 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 [ 11.193071][ T272] RSP: 002b:00007ffd359292e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 11.193073][ T272] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f556851d54e [ 11.193075][ T272] RDX: 0000000000000000 RSI: 00007ffd35929390 RDI: 0000000000000005 [ 11.193075][ T272] RBP: 00007ffd359292f0 R08: 0000000000000000 R09: 0000000000000000 [ 11.193076][ T272] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91749a [ 11.193077][ T272] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd35929a60 | [ 12.352397][ T12] softirqs last disabled at (5072): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883) | [ 12.352399][ T12] Preemption disabled at: | [ 12.352399][ T12] vprintk_emit (kernel/printk/printk.c:2471) | [ 12.352408][ T12] Tainted: [W]=WARN [ 12.352409][ T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.352410][ T12] Workqueue: netns cleanup_net [ 12.352414][ T12] Call Trace: [ 12.352416][ T12] [ 12.352418][ T12] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.352424][ T12] ? vprintk_emit (kernel/printk/printk.c:2471) [ 12.352425][ T12] __might_resched.cold (kernel/sched/core.c:9234) [ 12.352430][ T12] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.352434][ 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) [ 12.352438][ 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)) [ 12.352440][ T12] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.352446][ 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) [ 12.352449][ T12] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.352453][ T12] put_chars (drivers/char/virtio_console.c:1176) [ 12.352455][ T12] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.352459][ T12] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 12.352464][ T12] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.352467][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.352473][ T12] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.352476][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.352482][ T12] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.352486][ T12] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.352488][ 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)) [ 12.352491][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.352493][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.352497][ T12] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.352501][ T12] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.352503][ T12] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.352509][ T12] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.352511][ T12] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.352518][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.352520][ 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) [ 12.352523][ T12] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.352525][ T12] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.352528][ T12] vprintk_emit (kernel/printk/printk.c:2479) [ 12.352531][ T12] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.352532][ T12] ? cleanup_net (net/core/net_namespace.c:706) [ 12.352534][ T12] ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 12.352536][ T12] ? kthread (kernel/kthread.c:436) [ 12.352538][ T12] ? ret_from_fork (arch/x86/kernel/process.c:158) [ 12.352541][ T12] ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245) [ 12.352546][ T12] _printk (kernel/printk/printk.c:2504) [ 12.352550][ T12] ? snapshot_read.cold (user.c:?) [ 12.352554][ T12] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 12.352558][ T12] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 12.352562][ T12] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 12.352565][ T12] ? netdev_notice (net/core/dev.c:13194) [ 12.352569][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.352571][ T12] ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1)) [ 12.352573][ T12] ? down_write_nested (kernel/locking/rwsem.c:1759) [ 12.352575][ 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) [ 12.352578][ T12] netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3)) [ 12.352582][ T12] dev_set_allmulti (net/core/dev_api.c:315) [ 12.352586][ T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) [ 12.352592][ T12] br_dev_delete (net/bridge/br_if.c:387) [ 12.352596][ T12] br_net_exit_rtnl (net/bridge/br.c:414) [ 12.352599][ T12] ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249) [ 12.352603][ T12] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 12.352606][ T12] ? netns_install (./include/linux/ns_common.h:26) [ 12.352608][ T12] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.352611][ T12] ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563) [ 12.352616][ T12] cleanup_net (net/core/net_namespace.c:706) [ 12.352619][ T12] ? net_passive_dec (./include/linux/llist.h:241) [ 12.352623][ T12] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.352625][ T12] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.352628][ T12] process_one_work (kernel/workqueue.c:3387) [ 12.352635][ T12] ? __queue_delayed_work (kernel/workqueue.c:2622) [ 12.352638][ T12] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.352646][ T12] worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551) [ 12.352654][ T12] ? rescuer_thread (./include/linux/list.h:419 (discriminator 3)) [ 12.352656][ T12] kthread (kernel/kthread.c:436) [ 12.352657][ T12] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 12.352661][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) [ 12.352664][ T12] ret_from_fork (arch/x86/kernel/process.c:158) [ 12.352667][ T12] ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1)) [ 12.352670][ T12] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 12.352673][ T12] ? kthread_affine_preferred (kernel/kthread.c:857) Finger prints: inet6_fill_ifla6_attrs:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars __alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars