====================================== | [ 9.743048][ T201] softirqs last disabled at (26932): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 9.743050][ T201] Preemption disabled at: | [ 9.743051][ T201] vprintk_emit (kernel/printk/printk.c:2471) | [ 9.743059][ T201] Tainted: [W]=WARN [ 9.743060][ T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.743062][ T201] Call Trace: [ 9.743064][ T201] [ 9.743066][ T201] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.743072][ T201] ? vprintk_emit (kernel/printk/printk.c:2471) [ 9.743073][ T201] __might_resched.cold (kernel/sched/core.c:9234) [ 9.743078][ T201] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.743082][ T201] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.743086][ T201] __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)) [ 9.743088][ T201] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.743095][ T201] ? 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) [ 9.743098][ T201] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.743102][ T201] put_chars (drivers/char/virtio_console.c:1176) [ 9.743104][ T201] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.743107][ T201] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 9.743112][ T201] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.743116][ T201] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.743121][ T201] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.743124][ T201] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.743129][ T201] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.743133][ T201] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.743135][ T201] ? 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)) [ 9.743138][ T201] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.743140][ T201] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.743144][ T201] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.743148][ T201] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.743150][ T201] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.743155][ T201] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.743158][ T201] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.743160][ T201] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.743161][ T201] ? 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) [ 9.743165][ T201] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.743167][ T201] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.743169][ T201] vprintk_emit (kernel/printk/printk.c:2479) [ 9.743172][ T201] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.743174][ T201] ? __kernel_text_address (kernel/extable.c:79) [ 9.743176][ T201] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 9.743180][ T201] ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26) [ 9.743185][ T201] dev_vprintk_emit (drivers/base/core.c:5000) [ 9.743191][ T201] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 9.743199][ T201] dev_printk_emit (drivers/base/core.c:5011) [ 9.743201][ T201] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 9.743205][ T201] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 9.743210][ T201] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 9.743216][ T201] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 9.743219][ T201] ? netdev_notice (net/core/dev.c:13194) [ 9.743222][ T201] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.743225][ T201] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.743227][ T201] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 9.743231][ T201] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.743233][ T201] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 9.743236][ T201] ? lock_pin_lock (kernel/locking/lockdep.c:5640 (discriminator 2) kernel/locking/lockdep.c:6003 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2)) [ 9.743239][ T201] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 9.743242][ T201] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.743244][ T201] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 9.743250][ T201] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.743253][ T201] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.743256][ T201] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 9.743257][ T201] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.743259][ T201] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.743261][ T201] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 9.743263][ T201] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.743268][ T201] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.743270][ T201] ? lock_pin_lock (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:6004 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2)) [ 9.743271][ T201] ? __lock_acquire (kernel/locking/lockdep.c:433 kernel/locking/lockdep.c:5242) [ 9.743275][ T201] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.743277][ T201] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 9.743279][ T201] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.743281][ T201] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.743283][ T201] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.743284][ T201] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.743285][ T201] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 9.743288][ T201] ? __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) [ 9.743290][ T201] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 9.743292][ T201] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 9.743294][ T201] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.743297][ T201] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 9.743298][ T201] ? nla_get_range_signed (lib/nlattr.c:270) [ 9.743302][ T201] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.743305][ T201] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.743313][ T201] rtnl_setlink (net/core/rtnetlink.c:3596) [ 9.743316][ T201] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.743317][ T201] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.743340][ T201] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.743342][ T201] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.743344][ T201] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.743346][ T201] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.743348][ T201] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.743353][ T201] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.743354][ T201] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.743356][ T201] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.743358][ T201] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.743362][ T201] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.743364][ T201] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 9.743367][ T201] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.743368][ T201] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.743373][ T201] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.743374][ T201] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.743378][ T201] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 9.743381][ T201] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.743384][ T201] ? netlink_ack (./include/linux/skbuff.h:2718) [ 9.743390][ T201] ? 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)) [ 9.743392][ T201] ? 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)) [ 9.743397][ T201] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 9.743401][ T201] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 9.743404][ T201] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.743408][ T201] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 9.743412][ T201] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 9.743413][ T201] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.743416][ T201] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.743421][ T201] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 9.743423][ T201] ? fdget (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:49 fs/file.c:1194 fs/file.c:1208) [ 9.743427][ T201] __sys_sendto (net/socket.c:2281) [ 9.743430][ T201] ? __ia32_sys_getpeername (net/socket.c:2235) [ 9.743441][ T201] ? exc_page_fault (arch/x86/mm/fault.c:1483 arch/x86/mm/fault.c:1536) [ 9.743446][ T201] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 9.743448][ T201] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 9.743452][ T201] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 9.743453][ T201] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 9.743456][ T201] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.743458][ T201] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.743460][ T201] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.743462][ T201] RIP: 0033:0x7ffb730fc54e [ 9.743466][ T201] 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 [ 9.743468][ T201] RSP: 002b:00007ffe1c8f8f80 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 9.743470][ T201] RAX: ffffffffffffffda RBX: 000056184323cf40 RCX: 00007ffb730fc54e [ 9.743471][ T201] RDX: 0000000000000030 RSI: 000056184322d3d0 RDI: 0000000000000016 [ 9.743472][ T201] RBP: 00007ffe1c8f8f90 R08: 00007ffe1c8f8fe0 R09: 0000000000000080 [ 9.743473][ T201] R10: 0000000000000000 R11: 0000000000000202 R12: 00005618433db6e0 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars