====================================== | [ 11.428778][ T182] softirqs last disabled at (33168): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 11.428780][ T182] Preemption disabled at: | [ 11.428781][ T182] vprintk_emit (kernel/printk/printk.c:2471) | [ 11.428790][ T182] Tainted: [W]=WARN [ 11.428791][ T182] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.428793][ T182] Call Trace: [ 11.428794][ T182] [ 11.428796][ T182] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.428803][ T182] ? vprintk_emit (kernel/printk/printk.c:2471) [ 11.428804][ T182] __might_resched.cold (kernel/sched/core.c:9234) [ 11.428809][ T182] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.428813][ 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) [ 11.428819][ 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)) [ 11.428822][ T182] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.428828][ 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) [ 11.428831][ T182] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.428835][ T182] put_chars (drivers/char/virtio_console.c:1176) [ 11.428838][ T182] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.428842][ T182] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 11.428847][ T182] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.428851][ T182] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.428856][ T182] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.428859][ T182] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.428865][ T182] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.428869][ T182] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.428874][ T182] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.428875][ T182] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.428880][ T182] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.428884][ T182] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.428886][ T182] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.428891][ T182] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.428894][ T182] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.428896][ T182] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.428898][ T182] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 11.428902][ T182] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.428904][ T182] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.428907][ T182] vprintk_emit (kernel/printk/printk.c:2479) [ 11.428910][ T182] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.428912][ T182] ? write_profile (profile.c:?) [ 11.428915][ T182] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 11.428921][ T182] dev_vprintk_emit (drivers/base/core.c:5000) [ 11.428926][ T182] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 11.428931][ T182] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 11.428936][ T182] dev_printk_emit (drivers/base/core.c:5011) [ 11.428939][ T182] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 11.428943][ T182] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 11.428948][ T182] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 11.428954][ T182] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 11.428957][ T182] ? netdev_notice (net/core/dev.c:13194) [ 11.428959][ T182] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.428962][ T182] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.428965][ T182] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 11.428969][ T182] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 11.428971][ T182] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 11.428974][ T182] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.428976][ 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)) [ 11.428978][ T182] ? find_held_lock (kernel/locking/lockdep.c:5360) [ 11.428981][ T182] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 11.428984][ T182] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.428987][ T182] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 11.428992][ T182] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 11.428995][ T182] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.428998][ T182] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 11.429000][ T182] ? mark_usage (kernel/locking/lockdep.c:4690) [ 11.429001][ T182] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.429004][ T182] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.429007][ T182] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.429011][ T182] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.429016][ T182] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.429018][ T182] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 11.429021][ T182] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.429023][ T182] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.429025][ T182] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.429026][ T182] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.429028][ T182] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 11.429030][ 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) [ 11.429034][ T182] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 11.429036][ T182] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.429038][ T182] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 11.429040][ T182] ? mark_usage (kernel/locking/lockdep.c:4690) [ 11.429043][ T182] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 11.429045][ T182] ? nla_get_range_signed (lib/nlattr.c:270) [ 11.429051][ T182] ? mark_usage (kernel/locking/lockdep.c:4690) [ 11.429054][ T182] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 11.429062][ T182] rtnl_setlink (net/core/rtnetlink.c:3596) [ 11.429066][ T182] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 11.429067][ T182] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.429091][ T182] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.429093][ T182] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.429096][ T182] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.429098][ T182] ? mark_usage (kernel/locking/lockdep.c:4690) [ 11.429100][ T182] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.429105][ T182] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.429107][ T182] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.429109][ T182] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 11.429111][ T182] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.429115][ T182] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 11.429117][ T182] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.429121][ T182] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.429123][ T182] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.429128][ T182] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.429130][ T182] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.429133][ T182] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 11.429137][ T182] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.429140][ T182] ? netlink_ack (./include/linux/skbuff.h:2718) [ 11.429147][ 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)) [ 11.429149][ 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)) [ 11.429154][ T182] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 11.429158][ T182] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 11.429160][ T182] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.429165][ T182] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 11.429170][ T182] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 11.429174][ T182] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 11.429178][ T182] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 11.429182][ T182] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 11.429185][ T182] ? __ia32_sys_getpeername (net/socket.c:2235) [ 11.429196][ T182] ? exc_page_fault (arch/x86/mm/fault.c:1483 arch/x86/mm/fault.c:1536) [ 11.429201][ T182] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 11.429203][ T182] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 11.429206][ T182] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 11.429208][ T182] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 11.429210][ T182] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.429212][ T182] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.429215][ T182] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.429217][ T182] RIP: 0033:0x7fcb6058354e [ 11.429221][ 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 [ 11.429223][ T182] RSP: 002b:00007ffc50b55e10 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 11.429225][ T182] RAX: ffffffffffffffda RBX: 0000555fa62b0640 RCX: 00007fcb6058354e [ 11.429227][ T182] RDX: 0000000000000030 RSI: 0000555fa6283e00 RDI: 0000000000000016 [ 11.429227][ T182] RBP: 00007ffc50b55e20 R08: 00007ffc50b55e70 R09: 0000000000000080 [ 11.429228][ T182] R10: 0000000000000000 R11: 0000000000000202 R12: 0000555fa62dc1f0 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars