====================================== | [ 9.716224][ T83] softirqs last disabled at (416446): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 9.716226][ T83] Preemption disabled at: | [ 9.716226][ T83] vprintk_emit (kernel/printk/printk.c:2471) | [ 9.716236][ T83] Tainted: [W]=WARN [ 9.716237][ T83] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.716239][ T83] Call Trace: [ 9.716241][ T83] [ 9.716242][ T83] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.716248][ T83] ? vprintk_emit (kernel/printk/printk.c:2471) [ 9.716250][ T83] __might_resched.cold (kernel/sched/core.c:9234) [ 9.716255][ T83] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.716259][ T83] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.716264][ T83] __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)) [ 9.716266][ T83] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.716272][ T83] ? 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) [ 9.716275][ T83] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.716279][ T83] put_chars (drivers/char/virtio_console.c:1176) [ 9.716282][ T83] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.716287][ T83] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 9.716290][ T83] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.716294][ T83] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.716296][ T83] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.716297][ T83] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.716301][ T83] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.716304][ T83] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 9.716307][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.716311][ T83] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.716315][ T83] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.716318][ T83] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.716320][ T83] ? 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)) [ 9.716323][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.716325][ T83] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.716329][ T83] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.716333][ T83] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.716335][ T83] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.716340][ T83] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.716343][ T83] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.716344][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.716347][ T83] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.716350][ T83] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.716352][ T83] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.716355][ T83] vprintk_emit (kernel/printk/printk.c:2479) [ 9.716359][ T83] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.716361][ T83] ? write_profile (profile.c:?) [ 9.716364][ T83] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 9.716371][ T83] dev_vprintk_emit (drivers/base/core.c:5000) [ 9.716376][ T83] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 9.716381][ T83] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 9.716387][ T83] dev_printk_emit (drivers/base/core.c:5011) [ 9.716389][ T83] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 9.716394][ T83] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 9.716399][ T83] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 9.716404][ T83] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 9.716406][ T83] ? netdev_notice (net/core/dev.c:13194) [ 9.716409][ T83] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.716413][ T83] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.716416][ T83] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 9.716421][ T83] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.716424][ T83] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 9.716427][ T83] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.716429][ T83] ? __lock_acquire (kernel/locking/lockdep.c:5106) [ 9.716430][ T83] ? find_held_lock (kernel/locking/lockdep.c:5360) [ 9.716434][ T83] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 9.716436][ T83] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.716439][ T83] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 9.716445][ T83] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.716448][ T83] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.716451][ T83] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 9.716453][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.716454][ T83] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.716457][ T83] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 9.716460][ T83] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.716463][ T83] ? kvm_clock_get_cycles (arch/x86/kernel/kvmclock.c:80 (discriminator 1) arch/x86/kernel/kvmclock.c:87 (discriminator 1)) [ 9.716466][ T83] ? ktime_get (kernel/time/timekeeping.c:304 kernel/time/timekeeping.c:482 kernel/time/timekeeping.c:1004) [ 9.716472][ T83] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.716474][ T83] ? posix_cpu_timer_set (kernel/time/posix-cpu-timers.c:745) [ 9.716480][ T83] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.716482][ T83] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 9.716485][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.716487][ T83] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.716488][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.716490][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.716492][ T83] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 9.716495][ T83] ? __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) [ 9.716499][ T83] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 9.716501][ T83] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.716503][ T83] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 9.716505][ T83] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.716508][ T83] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 9.716510][ T83] ? nla_get_range_signed (lib/nlattr.c:270) [ 9.716516][ T83] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.716519][ T83] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 9.716527][ T83] rtnl_setlink (net/core/rtnetlink.c:3596) [ 9.716531][ T83] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.716532][ T83] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.716555][ T83] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.716557][ T83] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.716560][ T83] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.716562][ T83] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.716564][ T83] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.716568][ T83] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.716570][ T83] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.716572][ T83] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.716574][ T83] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.716578][ T83] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.716580][ T83] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 9.716584][ T83] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.716585][ T83] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.716589][ T83] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.716591][ T83] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.716595][ T83] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 9.716598][ T83] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.716601][ T83] ? netlink_ack (./include/linux/skbuff.h:2718) [ 9.716608][ T83] ? 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)) [ 9.716610][ T83] ? 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)) [ 9.716614][ T83] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 9.716618][ T83] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 9.716621][ T83] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.716625][ T83] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 9.716629][ T83] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 9.716633][ T83] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 9.716636][ T83] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 9.716640][ T83] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 9.716644][ T83] ? __ia32_sys_getpeername (net/socket.c:2235) [ 9.716663][ T83] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 9.716666][ T83] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 9.716670][ T83] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 9.716672][ T83] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 9.716674][ T83] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.716676][ T83] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.716679][ T83] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.716682][ T83] RIP: 0033:0x7fa40e37c54e [ 9.716686][ T83] 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 [ 9.716688][ T83] RSP: 002b:00007ffef59b1690 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 9.716690][ T83] RAX: ffffffffffffffda RBX: 0000564208392f40 RCX: 00007fa40e37c54e [ 9.716692][ T83] RDX: 0000000000000030 RSI: 000056420837bcb0 RDI: 0000000000000016 [ 9.716693][ T83] RBP: 00007ffef59b16a0 R08: 00007ffef59b16f0 R09: 0000000000000080 [ 9.716693][ T83] R10: 0000000000000000 R11: 0000000000000202 R12: 00005642084e62e0 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars