====================================== | [ 9.022693][ T91] softirqs last disabled at (331744): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 9.022695][ T91] Preemption disabled at: | [ 9.022696][ T91] vprintk_emit (kernel/printk/printk.c:2471) | [ 9.022705][ T91] Tainted: [W]=WARN [ 9.022706][ T91] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.022708][ T91] Call Trace: [ 9.022709][ T91] [ 9.022711][ T91] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.022716][ T91] ? vprintk_emit (kernel/printk/printk.c:2471) [ 9.022718][ T91] __might_resched.cold (kernel/sched/core.c:9234) [ 9.022722][ T91] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.022726][ T91] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.022731][ T91] __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)) [ 9.022733][ T91] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.022739][ T91] ? 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) [ 9.022742][ T91] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.022745][ T91] put_chars (drivers/char/virtio_console.c:1176) [ 9.022748][ T91] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.022753][ T91] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 9.022757][ T91] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.022760][ T91] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.022762][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.022763][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.022767][ T91] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.022770][ T91] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 9.022773][ T91] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.022776][ T91] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.022780][ T91] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.022783][ T91] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.022785][ T91] ? 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)) [ 9.022788][ T91] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.022790][ T91] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.022794][ T91] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.022797][ T91] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.022806][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.022811][ T91] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.022813][ T91] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.022815][ T91] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.022817][ T91] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.022820][ T91] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.022822][ T91] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.022825][ T91] vprintk_emit (kernel/printk/printk.c:2479) [ 9.022828][ T91] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.022830][ T91] ? write_profile (profile.c:?) [ 9.022833][ T91] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 9.022840][ T91] dev_vprintk_emit (drivers/base/core.c:5000) [ 9.022845][ T91] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 9.022849][ T91] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 9.022855][ T91] dev_printk_emit (drivers/base/core.c:5011) [ 9.022857][ T91] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 9.022861][ T91] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 9.022866][ T91] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 9.022871][ T91] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 9.022873][ T91] ? netdev_notice (net/core/dev.c:13194) [ 9.022876][ T91] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.022880][ T91] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.022882][ T91] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 9.022885][ T91] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.022888][ T91] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 9.022891][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.022892][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5106) [ 9.022894][ T91] ? find_held_lock (kernel/locking/lockdep.c:5360) [ 9.022897][ T91] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 9.022899][ T91] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.022903][ T91] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 9.022909][ T91] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.022912][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.022914][ T91] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 9.022916][ T91] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.022917][ T91] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.022920][ T91] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 9.022922][ T91] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.022926][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.022930][ T91] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.022932][ T91] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 9.022935][ T91] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.022937][ T91] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.022938][ T91] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.022940][ T91] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.022942][ T91] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 9.022945][ T91] ? __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) [ 9.022949][ T91] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 9.022951][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.022953][ T91] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 9.022956][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.022958][ T91] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 9.022960][ T91] ? nla_get_range_signed (lib/nlattr.c:270) [ 9.022965][ T91] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.022967][ T91] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 9.022971][ T91] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 9.022978][ T91] rtnl_setlink (net/core/rtnetlink.c:3596) [ 9.022981][ T91] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.022983][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.023004][ T91] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.023006][ T91] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.023009][ T91] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.023011][ T91] ? mark_usage (kernel/locking/lockdep.c:4690) [ 9.023013][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.023017][ T91] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.023018][ T91] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.023021][ T91] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.023023][ T91] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.023027][ T91] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.023029][ T91] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 9.023032][ T91] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.023034][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.023038][ T91] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 9.023040][ T91] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 9.023044][ T91] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 9.023047][ T91] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.023054][ T91] ? netlink_ack (./include/linux/skbuff.h:2718) [ 9.023062][ T91] ? 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)) [ 9.023065][ T91] ? 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)) [ 9.023075][ T91] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 9.023079][ T91] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 9.023082][ T91] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.023086][ T91] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 9.023090][ T91] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 9.023094][ T91] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 9.023097][ T91] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 9.023101][ T91] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 9.023105][ T91] ? __ia32_sys_getpeername (net/socket.c:2235) [ 9.023110][ T91] ? __schedule (kernel/sched/sched.h:1698 kernel/sched/core.c:7275) [ 9.023113][ T91] ? __schedule (kernel/sched/core.c:7277) [ 9.023123][ T91] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 9.023125][ T91] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 9.023129][ T91] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 9.023131][ T91] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 9.023133][ T91] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.023135][ T91] ? irq_exit_rcu (kernel/softirq.c:786) [ 9.023140][ T91] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.023142][ T91] RIP: 0033:0x7fad3cee054e [ 9.023146][ T91] 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 [ 9.023148][ T91] RSP: 002b:00007ffde5201090 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 9.023151][ T91] RAX: ffffffffffffffda RBX: 0000560f41084f40 RCX: 00007fad3cee054e [ 9.023152][ T91] RDX: 0000000000000030 RSI: 0000560f411ec6f0 RDI: 0000000000000024 [ 9.023153][ T91] RBP: 00007ffde52010a0 R08: 00007ffde52010f0 R09: 0000000000000080 [ 9.023154][ T91] R10: 0000000000000000 R11: 0000000000000202 R12: 0000560f411ed270 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars