====================================== | [ 10.191915][ T184] softirqs last disabled at (22632): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 10.191917][ T184] Preemption disabled at: | [ 10.191918][ T184] vprintk_emit (kernel/printk/printk.c:2471) | [ 10.191927][ T184] Tainted: [W]=WARN [ 10.191928][ T184] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.191930][ T184] Call Trace: [ 10.191931][ T184] [ 10.191933][ T184] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.191939][ T184] ? vprintk_emit (kernel/printk/printk.c:2471) [ 10.191941][ T184] __might_resched.cold (kernel/sched/core.c:9234) [ 10.191946][ T184] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.191950][ T184] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.191956][ T184] __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)) [ 10.191958][ T184] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.191964][ T184] ? 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) [ 10.191967][ T184] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.191971][ T184] put_chars (drivers/char/virtio_console.c:1176) [ 10.191974][ T184] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.191978][ T184] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 10.191983][ T184] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.191986][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.191992][ T184] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.191995][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.192001][ T184] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.192005][ T184] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.192010][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.192012][ T184] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.192016][ T184] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.192021][ T184] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.192023][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.192028][ T184] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.192034][ T184] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.192036][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.192038][ T184] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 10.192042][ T184] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.192044][ T184] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.192047][ T184] vprintk_emit (kernel/printk/printk.c:2479) [ 10.192050][ T184] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.192052][ T184] ? write_profile (profile.c:?) [ 10.192055][ T184] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 10.192062][ T184] dev_vprintk_emit (drivers/base/core.c:5000) [ 10.192067][ T184] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 10.192072][ T184] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 10.192078][ T184] dev_printk_emit (drivers/base/core.c:5011) [ 10.192080][ T184] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 10.192084][ T184] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 10.192090][ T184] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 10.192096][ T184] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 10.192098][ T184] ? netdev_notice (net/core/dev.c:13194) [ 10.192101][ T184] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.192104][ T184] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.192107][ T184] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 10.192111][ T184] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.192114][ T184] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 10.192116][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.192118][ T184] ? 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)) [ 10.192120][ T184] ? find_held_lock (kernel/locking/lockdep.c:5360) [ 10.192124][ T184] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 10.192126][ T184] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.192129][ T184] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 10.192134][ T184] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.192137][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.192141][ T184] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 10.192143][ T184] ? mark_usage (kernel/locking/lockdep.c:4690) [ 10.192144][ T184] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.192147][ T184] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 10.192150][ T184] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.192155][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.192160][ T184] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.192162][ T184] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 10.192165][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.192167][ T184] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.192169][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.192170][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.192172][ T184] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 10.192174][ T184] ? __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) [ 10.192178][ T184] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 10.192180][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.192182][ T184] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 10.192185][ T184] ? mark_usage (kernel/locking/lockdep.c:4690) [ 10.192188][ T184] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 10.192190][ T184] ? nla_get_range_signed (lib/nlattr.c:270) [ 10.192196][ T184] ? mark_usage (kernel/locking/lockdep.c:4690) [ 10.192199][ T184] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 10.192207][ T184] rtnl_setlink (net/core/rtnetlink.c:3596) [ 10.192211][ T184] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 10.192213][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.192237][ T184] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.192239][ T184] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.192242][ T184] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.192244][ T184] ? mark_usage (kernel/locking/lockdep.c:4690) [ 10.192246][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.192251][ T184] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.192253][ T184] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.192255][ T184] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 10.192258][ T184] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.192262][ T184] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 10.192264][ T184] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 10.192268][ T184] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.192270][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.192275][ T184] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.192277][ T184] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.192281][ T184] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 10.192284][ T184] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.192288][ T184] ? netlink_ack (./include/linux/skbuff.h:2718) [ 10.192295][ T184] ? 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)) [ 10.192297][ T184] ? 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)) [ 10.192307][ T184] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 10.192311][ T184] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 10.192314][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.192319][ T184] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 10.192323][ T184] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 10.192327][ T184] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 10.192331][ T184] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 10.192335][ T184] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 10.192339][ T184] ? __ia32_sys_getpeername (net/socket.c:2235) [ 10.192350][ T184] ? exc_page_fault (arch/x86/mm/fault.c:1483 arch/x86/mm/fault.c:1536) [ 10.192355][ T184] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 10.192357][ T184] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 10.192361][ T184] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 10.192362][ T184] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 10.192365][ T184] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.192367][ T184] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.192369][ T184] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.192372][ T184] RIP: 0033:0x7f584dd0c54e [ 10.192376][ T184] 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 [ 10.192377][ T184] RSP: 002b:00007ffd3eee2ed0 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 10.192380][ T184] RAX: ffffffffffffffda RBX: 000055a5f8ece1d0 RCX: 00007f584dd0c54e [ 10.192381][ T184] RDX: 0000000000000030 RSI: 000055a5f9041750 RDI: 000000000000001e [ 10.192382][ T184] RBP: 00007ffd3eee2ee0 R08: 00007ffd3eee2f30 R09: 0000000000000080 [ 10.192383][ T184] R10: 0000000000000000 R11: 0000000000000202 R12: 000055a5f9041320 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars