====================================== | [ 12.337236][ T186] softirqs last disabled at (317322): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 12.337239][ T186] Preemption disabled at: | [ 12.337240][ T186] vprintk_emit (kernel/printk/printk.c:2471) | [ 12.337252][ T186] Tainted: [W]=WARN [ 12.337253][ T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.337256][ T186] Call Trace: [ 12.337258][ T186] [ 12.337260][ T186] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.337267][ T186] ? vprintk_emit (kernel/printk/printk.c:2471) [ 12.337270][ T186] __might_resched.cold (kernel/sched/core.c:9234) [ 12.337276][ T186] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.337282][ T186] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.337290][ T186] __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)) [ 12.337294][ T186] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.337303][ T186] ? 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) [ 12.337306][ T186] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.337312][ T186] put_chars (drivers/char/virtio_console.c:1176) [ 12.337317][ T186] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.337323][ T186] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 12.337332][ T186] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.337335][ T186] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.337344][ T186] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.337349][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.337359][ T186] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.337365][ T186] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.337373][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.337376][ T186] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.337383][ T186] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.337390][ T186] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.337393][ T186] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.337403][ T186] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.337408][ T186] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.337410][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.337414][ T186] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 12.337420][ T186] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.337423][ T186] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.337428][ T186] vprintk_emit (kernel/printk/printk.c:2479) [ 12.337433][ T186] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.337437][ T186] ? write_profile (profile.c:?) [ 12.337440][ T186] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 12.337450][ T186] dev_vprintk_emit (drivers/base/core.c:5000) [ 12.337457][ T186] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 12.337465][ T186] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 12.337477][ T186] dev_printk_emit (drivers/base/core.c:5011) [ 12.337481][ T186] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 12.337488][ T186] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 12.337497][ T186] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 12.337510][ T186] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 12.337514][ T186] ? netdev_notice (net/core/dev.c:13194) [ 12.337518][ T186] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.337523][ T186] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.337528][ T186] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 12.337534][ T186] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 12.337538][ T186] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 12.337542][ T186] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.337545][ T186] ? mark_lock_irq (kernel/locking/lockdep.c:154 (discriminator 6) kernel/locking/lockdep.c:150 (discriminator 6) kernel/locking/lockdep.c:202 (discriminator 6) kernel/locking/lockdep.c:4092 (discriminator 6) kernel/locking/lockdep.c:4174 (discriminator 6) kernel/locking/lockdep.c:4310 (discriminator 6)) [ 12.337548][ T186] ? find_held_lock (kernel/locking/lockdep.c:5360) [ 12.337553][ T186] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 12.337557][ T186] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.337562][ T186] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 12.337570][ T186] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 12.337575][ T186] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.337580][ T186] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 12.337583][ T186] ? mark_usage (kernel/locking/lockdep.c:4690) [ 12.337585][ T186] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.337589][ T186] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.337593][ T186] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.337601][ T186] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.337609][ T186] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.337612][ T186] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 12.337617][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.337620][ T186] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.337623][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.337625][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.337628][ T186] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 12.337632][ T186] ? __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) [ 12.337637][ T186] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 12.337639][ T186] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.337643][ T186] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 12.337647][ T186] ? mark_usage (kernel/locking/lockdep.c:4690) [ 12.337651][ T186] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 12.337655][ T186] ? nla_get_range_signed (lib/nlattr.c:270) [ 12.337663][ T186] ? mark_usage (kernel/locking/lockdep.c:4690) [ 12.337668][ T186] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 12.337680][ T186] rtnl_setlink (net/core/rtnetlink.c:3596) [ 12.337686][ T186] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 12.337689][ T186] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.337731][ T186] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.337734][ T186] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.337739][ T186] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.337742][ T186] ? mark_usage (kernel/locking/lockdep.c:4690) [ 12.337745][ T186] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.337753][ T186] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.337756][ T186] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.337760][ T186] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 12.337763][ T186] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.337769][ T186] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 12.337773][ T186] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 12.337779][ T186] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 12.337782][ T186] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.337790][ T186] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.337793][ T186] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.337799][ T186] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 12.337803][ T186] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 12.337809][ T186] ? netlink_ack (./include/linux/skbuff.h:2718) [ 12.337820][ T186] ? 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)) [ 12.337823][ T186] ? 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)) [ 12.337831][ T186] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 12.337838][ T186] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 12.337842][ T186] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.337851][ T186] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 12.337858][ T186] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 12.337865][ T186] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 12.337870][ T186] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 12.337877][ T186] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 12.337882][ T186] ? __ia32_sys_getpeername (net/socket.c:2235) [ 12.337901][ T186] ? exc_page_fault (arch/x86/mm/fault.c:1483 arch/x86/mm/fault.c:1536) [ 12.337910][ T186] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 12.337913][ T186] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 12.337917][ T186] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 12.337920][ T186] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 12.337923][ T186] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.337926][ T186] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.337930][ T186] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.337933][ T186] RIP: 0033:0x7f6f6de1954e [ 12.337939][ T186] 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 [ 12.337941][ T186] RSP: 002b:00007ffe8d71f0b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 12.337945][ T186] RAX: ffffffffffffffda RBX: 000055e78a686b00 RCX: 00007f6f6de1954e [ 12.337947][ T186] RDX: 0000000000000030 RSI: 000055e78a83acb0 RDI: 0000000000000020 [ 12.337948][ T186] RBP: 00007ffe8d71f0c0 R08: 00007ffe8d71f110 R09: 0000000000000080 [ 12.337950][ T186] R10: 0000000000000000 R11: 0000000000000202 R12: 000055e78a83d1a0 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars