====================================== | [ 11.268437][ T214] softirqs last disabled at (19198): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 11.268441][ T214] Preemption disabled at: | [ 11.268442][ T214] vprintk_emit (kernel/printk/printk.c:2471) | [ 11.268454][ T214] Tainted: [W]=WARN [ 11.268455][ T214] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.268458][ T214] Call Trace: [ 11.268460][ T214] [ 11.268462][ T214] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.268469][ T214] ? vprintk_emit (kernel/printk/printk.c:2471) [ 11.268472][ T214] __might_resched.cold (kernel/sched/core.c:9234) [ 11.268478][ T214] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.268484][ T214] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.268491][ T214] __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)) [ 11.268495][ T214] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.268505][ T214] ? 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) [ 11.268509][ T214] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.268515][ T214] put_chars (drivers/char/virtio_console.c:1176) [ 11.268519][ T214] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.268527][ T214] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 11.268533][ T214] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.268539][ T214] ? mark_usage (kernel/locking/lockdep.c:4690) [ 11.268542][ T214] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.268545][ T214] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.268552][ T214] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.268556][ T214] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 11.268562][ T214] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.268566][ T214] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.268573][ T214] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.268579][ T214] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.268582][ T214] ? 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)) [ 11.268588][ T214] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.268591][ T214] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.268598][ T214] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.268608][ T214] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.268610][ T214] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.268620][ T214] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.268625][ T214] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.268627][ T214] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.268631][ T214] ? 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) [ 11.268637][ T214] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.268640][ T214] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.268645][ T214] vprintk_emit (kernel/printk/printk.c:2479) [ 11.268651][ T214] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.268654][ T214] ? write_profile (profile.c:?) [ 11.268658][ T214] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 11.268668][ T214] dev_vprintk_emit (drivers/base/core.c:5000) [ 11.268675][ T214] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 11.268683][ T214] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 11.268693][ T214] dev_printk_emit (drivers/base/core.c:5011) [ 11.268696][ T214] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 11.268703][ T214] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 11.268713][ T214] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 11.268722][ T214] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 11.268726][ T214] ? netdev_notice (net/core/dev.c:13194) [ 11.268731][ T214] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.268736][ T214] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.268741][ T214] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 11.268747][ T214] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 11.268751][ T214] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 11.268755][ T214] ? 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)) [ 11.268763][ T214] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 11.268768][ T214] ? write_profile (profile.c:?) [ 11.268773][ T214] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 11.268782][ T214] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 11.268788][ T214] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 11.268792][ T214] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 11.268794][ T214] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 11.268798][ T214] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 11.268803][ T214] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.268807][ T214] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.268810][ T214] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.268814][ T214] ? kasan_save_stack (mm/kasan/common.c:58) [ 11.268817][ T214] ? kasan_save_stack (mm/kasan/common.c:57) [ 11.268819][ T214] ? kasan_save_track (mm/kasan/common.c:78) [ 11.268822][ T214] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 11.268826][ T214] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.268829][ T214] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 11.268833][ T214] ? ___sys_sendmsg (net/socket.c:2758) [ 11.268840][ T214] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.268843][ T214] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.268848][ T214] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.268851][ T214] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.268853][ T214] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.268855][ T214] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.268859][ T214] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 11.268863][ T214] ? __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) [ 11.268866][ T214] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 11.268870][ T214] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.268876][ T214] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 11.268879][ T214] ? nla_get_range_signed (lib/nlattr.c:270) [ 11.268887][ T214] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.268891][ T214] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 11.268901][ T214] rtnl_newlink (net/core/rtnetlink.c:4215) [ 11.268911][ T214] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.268914][ T214] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.268922][ T214] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.268925][ T214] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.268929][ T214] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.268932][ T214] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.268939][ T214] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.268942][ T214] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.268948][ T214] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.268950][ T214] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.268958][ T214] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.268961][ T214] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.268967][ T214] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 11.268971][ T214] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.268977][ T214] ? netlink_ack (./include/linux/skbuff.h:2718) [ 11.268988][ T214] ? 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)) [ 11.268991][ T214] ? 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)) [ 11.269005][ T214] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 11.269012][ T214] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 11.269016][ T214] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.269024][ T214] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 11.269031][ T214] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 11.269038][ T214] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.269041][ T214] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 11.269049][ T214] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 11.269054][ T214] ____sys_sendmsg (net/socket.c:2713) [ 11.269058][ T214] ? copy_msghdr_from_user (net/socket.c:2650) [ 11.269062][ T214] ? sock_write_iter (net/socket.c:1269) [ 11.269064][ T214] ? move_addr_to_kernel (net/socket.c:258) [ 11.269078][ T214] ___sys_sendmsg (net/socket.c:2767) [ 11.269083][ T214] ? copy_msghdr_from_user (net/socket.c:2619) [ 11.269113][ T214] __sys_sendmsg (net/socket.c:2799) [ 11.269118][ T214] ? __sys_sendmsg_sock (net/socket.c:2780) [ 11.269129][ T214] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.269135][ T214] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.269139][ T214] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.269144][ T214] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.269148][ T214] RIP: 0033:0x7fe8ee49c54e [ 11.269153][ T214] 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 [ 11.269156][ T214] RSP: 002b:00007ffcc2d1e260 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 11.269159][ T214] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe8ee49c54e [ 11.269161][ T214] RDX: 0000000000000000 RSI: 00007ffcc2d1e310 RDI: 0000000000000005 [ 11.269163][ T214] RBP: 00007ffcc2d1e270 R08: 0000000000000000 R09: 0000000000000000 [ 11.269164][ T214] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9162b6 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars