====================================== | [ 11.612292][ T182] softirqs last disabled at (347918): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 11.612294][ T182] Preemption disabled at: | [ 11.612295][ T182] vprintk_emit (kernel/printk/printk.c:2471) | [ 11.612304][ T182] Tainted: [W]=WARN [ 11.612305][ T182] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.612307][ T182] Call Trace: [ 11.612308][ T182] [ 11.612310][ T182] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.612316][ T182] ? vprintk_emit (kernel/printk/printk.c:2471) [ 11.612318][ T182] __might_resched.cold (kernel/sched/core.c:9234) [ 11.612323][ T182] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.612327][ T182] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.612333][ T182] __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)) [ 11.612335][ T182] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.612342][ T182] ? 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) [ 11.612344][ T182] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.612348][ T182] put_chars (drivers/char/virtio_console.c:1176) [ 11.612352][ T182] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.612356][ T182] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 11.612361][ T182] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.612364][ T182] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.612372][ T182] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.612376][ T182] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.612382][ T182] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.612386][ T182] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.612391][ T182] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.612393][ T182] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.612397][ T182] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.612401][ T182] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.612403][ T182] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.612409][ T182] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.612412][ T182] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.612414][ T182] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.612416][ T182] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 11.612420][ T182] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.612422][ T182] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.612425][ T182] vprintk_emit (kernel/printk/printk.c:2479) [ 11.612428][ T182] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.612430][ T182] ? write_profile (profile.c:?) [ 11.612433][ T182] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 11.612440][ T182] dev_vprintk_emit (drivers/base/core.c:5000) [ 11.612445][ T182] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 11.612449][ T182] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 11.612455][ T182] dev_printk_emit (drivers/base/core.c:5011) [ 11.612458][ T182] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 11.612462][ T182] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 11.612467][ T182] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 11.612473][ T182] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 11.612476][ T182] ? netdev_notice (net/core/dev.c:13194) [ 11.612479][ T182] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.612482][ T182] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.612485][ T182] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 11.612488][ T182] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 11.612491][ T182] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 11.612494][ T182] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.612496][ T182] ? 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)) [ 11.612498][ T182] ? find_held_lock (kernel/locking/lockdep.c:5360) [ 11.612501][ T182] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 11.612504][ T182] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.612507][ T182] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 11.612512][ T182] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 11.612515][ T182] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.612519][ T182] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 11.612520][ T182] ? mark_usage (kernel/locking/lockdep.c:4690) [ 11.612522][ T182] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.612525][ T182] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.612527][ T182] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.612532][ T182] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.612537][ T182] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.612539][ T182] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 11.612542][ T182] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.612544][ T182] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.612546][ T182] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.612547][ T182] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.612549][ T182] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 11.612552][ T182] ? __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) [ 11.612555][ T182] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 11.612557][ T182] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.612560][ T182] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 11.612562][ T182] ? mark_usage (kernel/locking/lockdep.c:4690) [ 11.612565][ T182] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 11.612567][ T182] ? nla_get_range_signed (lib/nlattr.c:270) [ 11.612573][ T182] ? mark_usage (kernel/locking/lockdep.c:4690) [ 11.612577][ T182] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 11.612584][ T182] rtnl_setlink (net/core/rtnetlink.c:3596) [ 11.612588][ T182] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 11.612590][ T182] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.612614][ T182] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.612616][ T182] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.612625][ T182] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.612627][ T182] ? mark_usage (kernel/locking/lockdep.c:4690) [ 11.612630][ T182] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.612635][ T182] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.612637][ T182] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.612639][ T182] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 11.612641][ T182] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.612645][ T182] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 11.612648][ T182] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.612651][ T182] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.612653][ T182] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.612658][ T182] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.612660][ T182] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.612664][ T182] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 11.612668][ T182] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.612671][ T182] ? netlink_ack (./include/linux/skbuff.h:2718) [ 11.612678][ T182] ? 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)) [ 11.612680][ T182] ? 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)) [ 11.612686][ T182] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 11.612690][ T182] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 11.612693][ T182] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.612698][ T182] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 11.612702][ T182] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 11.612706][ T182] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 11.612710][ T182] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 11.612714][ T182] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 11.612717][ T182] ? __ia32_sys_getpeername (net/socket.c:2235) [ 11.612729][ T182] ? exc_page_fault (arch/x86/mm/fault.c:1483 arch/x86/mm/fault.c:1536) [ 11.612734][ T182] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 11.612736][ T182] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 11.612739][ T182] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 11.612741][ T182] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 11.612743][ T182] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.612745][ T182] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.612748][ T182] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.612750][ T182] RIP: 0033:0x7f3451e1354e [ 11.612754][ T182] 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 [ 11.612756][ T182] RSP: 002b:00007ffc3973fcd0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 11.612758][ T182] RAX: ffffffffffffffda RBX: 00005588c1debe30 RCX: 00007f3451e1354e [ 11.612760][ T182] RDX: 0000000000000030 RSI: 00005588c1e33ee0 RDI: 0000000000000016 [ 11.612761][ T182] RBP: 00007ffc3973fce0 R08: 00007ffc3973fd30 R09: 0000000000000080 [ 11.612761][ T182] R10: 0000000000000000 R11: 0000000000000202 R12: 00005588c1e35a80 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars