====================================== | [ 8.886941][ T86] softirqs last disabled at (348104): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 8.886944][ T86] Preemption disabled at: | [ 8.886944][ T86] vprintk_emit (kernel/printk/printk.c:2471) | [ 8.886953][ T86] Tainted: [W]=WARN [ 8.886954][ T86] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.886956][ T86] Call Trace: [ 8.886957][ T86] [ 8.886959][ T86] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 8.886964][ T86] ? vprintk_emit (kernel/printk/printk.c:2471) [ 8.886967][ T86] __might_resched.cold (kernel/sched/core.c:9234) [ 8.886972][ T86] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 8.886975][ T86] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 8.886980][ T86] __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)) [ 8.886982][ T86] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.886987][ T86] ? 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) [ 8.886990][ T86] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.886993][ T86] put_chars (drivers/char/virtio_console.c:1176) [ 8.886996][ T86] ? __send_to_port (drivers/char/virtio_console.c:654) [ 8.886999][ T86] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 8.887004][ T86] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 8.887006][ T86] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.887011][ T86] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 8.887014][ T86] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.887020][ T86] console_emit_next_record (kernel/printk/printk.c:3183) [ 8.887024][ T86] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 8.887028][ T86] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.887030][ T86] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.887034][ T86] console_flush_one_record (kernel/printk/printk.c:3268) [ 8.887042][ T86] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 8.887043][ T86] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.887048][ T86] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 8.887051][ T86] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 8.887052][ T86] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.887055][ T86] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 8.887058][ T86] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 8.887059][ T86] ? vprintk_emit (kernel/printk/printk.c:2478) [ 8.887062][ T86] vprintk_emit (kernel/printk/printk.c:2479) [ 8.887066][ T86] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 8.887068][ T86] ? write_profile (profile.c:?) [ 8.887071][ T86] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 8.887077][ T86] dev_vprintk_emit (drivers/base/core.c:5000) [ 8.887082][ T86] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 8.887086][ T86] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 8.887092][ T86] dev_printk_emit (drivers/base/core.c:5011) [ 8.887095][ T86] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 8.887099][ T86] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 8.887104][ T86] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 8.887109][ T86] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 8.887111][ T86] ? netdev_notice (net/core/dev.c:13194) [ 8.887113][ T86] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.887117][ T86] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.887119][ T86] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 8.887122][ T86] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 8.887125][ T86] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 8.887128][ T86] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.887129][ T86] ? rwsem_optimistic_spin (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:4434 kernel/locking/rwsem.c:245 kernel/locking/rwsem.c:898) [ 8.887132][ T86] ? find_held_lock (kernel/locking/lockdep.c:5360) [ 8.887135][ T86] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 8.887137][ T86] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.887140][ T86] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 8.887146][ T86] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 8.887149][ T86] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.887152][ T86] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 8.887153][ T86] ? mark_usage (kernel/locking/lockdep.c:4690) [ 8.887155][ T86] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 8.887157][ T86] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 8.887159][ T86] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 8.887163][ T86] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.887168][ T86] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.887169][ T86] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 8.887172][ T86] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.887174][ T86] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.887176][ T86] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.887177][ T86] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.887179][ T86] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 8.887182][ T86] ? __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) [ 8.887185][ T86] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 8.887186][ T86] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.887188][ T86] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 8.887190][ T86] ? mark_usage (kernel/locking/lockdep.c:4690) [ 8.887193][ T86] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 8.887194][ T86] ? nla_get_range_signed (lib/nlattr.c:270) [ 8.887201][ T86] ? mark_usage (kernel/locking/lockdep.c:4690) [ 8.887203][ T86] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 8.887211][ T86] rtnl_setlink (net/core/rtnetlink.c:3596) [ 8.887215][ T86] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 8.887216][ T86] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.887238][ T86] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.887240][ T86] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.887243][ T86] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.887245][ T86] ? mark_usage (kernel/locking/lockdep.c:4690) [ 8.887246][ T86] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.887251][ T86] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.887252][ T86] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.887255][ T86] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 8.887257][ T86] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.887260][ T86] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 8.887262][ T86] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 8.887266][ T86] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 8.887267][ T86] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.887272][ T86] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 8.887273][ T86] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 8.887277][ T86] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 8.887280][ T86] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 8.887283][ T86] ? netlink_ack (./include/linux/skbuff.h:2718) [ 8.887290][ T86] ? 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)) [ 8.887292][ T86] ? 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)) [ 8.887297][ T86] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 8.887301][ T86] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 8.887303][ T86] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.887308][ T86] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 8.887312][ T86] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 8.887315][ T86] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 8.887319][ T86] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 8.887322][ T86] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 8.887325][ T86] ? __ia32_sys_getpeername (net/socket.c:2235) [ 8.887336][ T86] ? exc_page_fault (arch/x86/mm/fault.c:1483 arch/x86/mm/fault.c:1536) [ 8.887342][ T86] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 8.887343][ T86] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 8.887347][ T86] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 8.887349][ T86] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 8.887351][ T86] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 8.887352][ T86] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 8.887355][ T86] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.887357][ T86] RIP: 0033:0x7f77f4aeb54e [ 8.887360][ T86] 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 [ 8.887362][ T86] RSP: 002b:00007ffd94921f90 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 8.887365][ T86] RAX: ffffffffffffffda RBX: 000055781f1d3f50 RCX: 00007f77f4aeb54e [ 8.887366][ T86] RDX: 0000000000000030 RSI: 000055781f1d5430 RDI: 000000000000001e [ 8.887367][ T86] RBP: 00007ffd94921fa0 R08: 00007ffd94921ff0 R09: 0000000000000080 [ 8.887368][ T86] R10: 0000000000000000 R11: 0000000000000202 R12: 000055781f329b20 Finger prints: netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars