====================================== | [ 9.976798][ T83] softirqs last disabled at (159449): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.976800][ T83] Preemption disabled at: | [ 9.976801][ T83] vprintk_emit (kernel/printk/printk.c:2471) | [ 9.976811][ T83] Tainted: [W]=WARN [ 9.976812][ T83] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.976814][ T83] Call Trace: [ 9.976816][ T83] [ 9.976817][ T83] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.976822][ T83] ? vprintk_emit (kernel/printk/printk.c:2471) [ 9.976824][ T83] __might_resched.cold (kernel/sched/core.c:9234) [ 9.976828][ T83] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.976831][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.976834][ 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)) [ 9.976838][ T83] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.976841][ T83] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.976846][ 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) [ 9.976848][ T83] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.976850][ T83] put_chars (drivers/char/virtio_console.c:1176) [ 9.976853][ T83] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.976855][ T83] ? console_prepend_replay (kernel/printk/printk.c:3005) [ 9.976857][ T83] ? desc_read (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 kernel/printk/printk_ringbuffer.c:552) [ 9.976860][ T83] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.976863][ T83] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.976865][ T83] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.976867][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.976868][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.976870][ T83] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.976873][ T83] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.976875][ T83] ? _prb_read_valid (kernel/printk/printk_ringbuffer.c:1996) [ 9.976877][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.976878][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.976879][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.976880][ T83] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.976882][ T83] ? console_flush_one_record (kernel/printk/printk.c:3247) [ 9.976884][ T83] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.976887][ T83] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.976890][ T83] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.976892][ T83] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.976893][ T83] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.976895][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.976896][ T83] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.976898][ T83] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.976899][ T83] ? sync_exp_reset_tree_hotplug (kernel/rcu/tree_exp.h:98) [ 9.976904][ T83] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.976906][ T83] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.976908][ T83] vprintk_emit (kernel/printk/printk.c:2479) [ 9.976910][ T83] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.976912][ T83] ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749) [ 9.976915][ T83] dev_vprintk_emit (drivers/base/core.c:5000) [ 9.976920][ T83] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 9.976923][ T83] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.976925][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.976927][ T83] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.976929][ T83] dev_printk_emit (drivers/base/core.c:5011) [ 9.976931][ T83] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 9.976934][ T83] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.976935][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.976937][ T83] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.976938][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.976940][ T83] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 9.976944][ T83] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 9.976947][ T83] ? netdev_notice (net/core/dev.c:13194) [ 9.976948][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.976949][ T83] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.976951][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.976952][ T83] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 9.976955][ T83] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.976957][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.976958][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.976959][ T83] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 9.976962][ T83] ? trace_irq_disable.constprop.0 (./include/trace/events/preemptirq.h:36 (discriminator 22)) [ 9.976964][ T83] ? trace_irq_enable.constprop.0 (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/preemptirq.h:40) [ 9.976965][ T83] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.976969][ T83] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 9.976972][ T83] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 9.976976][ T83] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 9.976979][ T83] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.976982][ T83] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 9.976984][ T83] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.976985][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.976987][ T83] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.976989][ T83] ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749) [ 9.976990][ T83] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 9.976991][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.976992][ T83] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 9.976995][ T83] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.976997][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.976998][ T83] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.977000][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.977001][ T83] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.977003][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.977005][ T83] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.977007][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.977008][ T83] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.977010][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.977011][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.977012][ T83] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 9.977014][ 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) [ 9.977017][ T83] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 9.977018][ T83] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.977020][ T83] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 9.977022][ T83] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 9.977023][ T83] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 9.977025][ T83] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 9.977027][ T83] ? nla_get_range_signed (lib/nlattr.c:270) [ 9.977031][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.977033][ T83] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.977035][ T83] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 9.977039][ T83] rtnl_setlink (net/core/rtnetlink.c:3596) [ 9.977041][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.977043][ T83] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.977045][ T83] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.977052][ T83] ? unwind_next_frame (./include/linux/rcupdate.h:882 ./include/linux/rcupdate.h:1216 arch/x86/kernel/unwind_orc.c:495) [ 9.977055][ T83] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.977057][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.977059][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.977060][ T83] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.977062][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.977063][ T83] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.977065][ T83] ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749) [ 9.977067][ T83] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 9.977068][ T83] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 9.977070][ T83] ? __kernel_text_address (kernel/extable.c:79) [ 9.977072][ T83] ? write_profile (profile.c:?) [ 9.977074][ T83] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 9.977076][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.977077][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.977079][ T83] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 9.977080][ T83] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.977082][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.977084][ T83] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.977086][ T83] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 9.977088][ T83] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.977090][ T83] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 9.977092][ T83] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676) [ 9.977096][ T83] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 9.977099][ T83] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.977102][ T83] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.977103][ T83] ? netlink_ack (./include/linux/skbuff.h:2718) [ 9.977106][ T83] ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499) [ 9.977109][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.977110][ T83] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.977113][ T83] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 9.977116][ T83] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 9.977118][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.977119][ T83] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.977121][ 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) [ 9.977123][ T83] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 9.977125][ T83] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 9.977127][ T83] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.977129][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.977130][ T83] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.977132][ T83] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 9.977136][ T83] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 9.977138][ T83] ? __ia32_sys_getpeername (net/socket.c:2235) [ 9.977142][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.977143][ T83] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.977145][ T83] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 9.977147][ T83] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 9.977148][ T83] ? trace_hardirqs_off_finish (./include/trace/events/preemptirq.h:36 (discriminator 22) kernel/trace/trace_preemptirq.c:95 (discriminator 22) kernel/trace/trace_preemptirq.c:90 (discriminator 22)) [ 9.977150][ T83] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78) [ 9.977151][ T83] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.977154][ T83] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.977156][ T83] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.977158][ T83] RIP: 0033:0x7f44d1c8e54e [ 9.977161][ 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 [ 9.977163][ T83] RSP: 002b:00007fff91842b90 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 9.977167][ T83] RAX: ffffffffffffffda RBX: 000055d9f7cd2f80 RCX: 00007f44d1c8e54e [ 9.977168][ T83] RDX: 0000000000000030 RSI: 000055d9f7ccdb30 RDI: 0000000000000018 [ 9.977169][ T83] RBP: 00007fff91842ba0 R08: 00007fff91842bf0 R09: 0000000000000080 [ 9.977170][ T83] R10: 0000000000000000 R11: 0000000000000202 R12: 000055d9f7e275a0 [ 9.977171][ T83] R13: 00007fff91842cd4 R14: 0000000000000000 R15: 0000000000000000 | [ 12.783726][ T218] softirqs last disabled at (0): 0x0 | [ 12.783729][ T218] Preemption disabled at: | [ 12.783730][ T218] 0x0 | [ 12.783741][ T218] Tainted: [W]=WARN [ 12.783743][ T218] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.783745][ T218] Call Trace: [ 12.783747][ T218] [ 12.783749][ T218] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.783756][ T218] __might_resched.cold (kernel/sched/core.c:9234) [ 12.783762][ T218] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.783767][ T218] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.783771][ T218] __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)) [ 12.783776][ T218] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 12.783780][ T218] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.783786][ T218] ? 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) [ 12.783788][ T218] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.783792][ T218] put_chars (drivers/char/virtio_console.c:1176) [ 12.783795][ T218] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.783798][ T218] ? console_prepend_replay (kernel/printk/printk.c:3005) [ 12.783802][ T218] ? desc_read (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 kernel/printk/printk_ringbuffer.c:552) [ 12.783806][ T218] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.783811][ T218] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.783814][ T218] ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1)) [ 12.783817][ T218] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 12.783820][ T218] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.783822][ T218] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.783825][ T218] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.783829][ T218] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.783831][ T218] ? _prb_read_valid (kernel/printk/printk_ringbuffer.c:1996) [ 12.783834][ T218] ? __asan_memmove (mm/kasan/shadow.c:95 (discriminator 1)) [ 12.783836][ T218] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.783838][ T218] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.783840][ T218] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.783842][ T218] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.783846][ T218] ? console_flush_one_record (kernel/printk/printk.c:3247) [ 12.783849][ T218] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.783853][ T218] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.783857][ T218] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.783860][ T218] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.783863][ T218] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.783865][ T218] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.783867][ T218] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 12.783870][ T218] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 12.783872][ T218] ? sync_exp_reset_tree_hotplug (kernel/rcu/tree_exp.h:98) [ 12.783875][ T218] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.783878][ T218] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.783880][ T218] vprintk_emit (kernel/printk/printk.c:2479) [ 12.783883][ T218] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.783885][ T218] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 12.783887][ T218] ? 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) [ 12.783891][ T218] _printk (kernel/printk/printk.c:2504) [ 12.783895][ T218] ? snapshot_read.cold (user.c:?) [ 12.783897][ T218] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 12.783900][ T218] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 12.783906][ T218] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 12.783909][ T218] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 12.783912][ T218] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 12.783917][ T218] ? exit_notify (kernel/exit.c:780) [ 12.783922][ T218] __x64_sys_exit (kernel/exit.c:1118 kernel/exit.c:1116 kernel/exit.c:1116) [ 12.783924][ T218] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:61) [ 12.783927][ T218] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.783932][ T218] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.783935][ T218] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.783938][ T218] RIP: 0033:0x7f0cb040ac49 [ 12.783941][ T218] Code: Unable to access opcode bytes at 0x7f0cb040ac1f. Code starting with the faulting instruction =========================================== [ 12.783942][ T218] RSP: 002b:00007f0cad9e5e60 EFLAGS: 00000246 ORIG_RAX: 000000000000003c [ 12.783947][ T218] RAX: ffffffffffffffda RBX: 00007f0cad9e66c0 RCX: 00007f0cb040ac49 [ 12.783949][ T218] RDX: 0000000000000000 RSI: 0000000000801000 RDI: 0000000000000000 [ 12.783951][ T218] RBP: 00007f0cad9e5f70 R08: 0000000000000001 R09: 00007f0cad9e66c0 [ 12.783952][ T218] R10: 0000000000000008 R11: 0000000000000246 R12: 00007f0cad1e6000 [ 12.783954][ T218] R13: 00007fff0336f5d0 R14: 0000000000000002 R15: 00007fff0336f6d7 | [ 14.484845][ T83] softirqs last disabled at (159449): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 14.484848][ T83] Preemption disabled at: | [ 14.484848][ T83] 0x0 | [ 14.484859][ T83] Tainted: [W]=WARN [ 14.484860][ T83] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.484862][ T83] Call Trace: [ 14.484863][ T83] [ 14.484864][ T83] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 14.484871][ T83] __might_resched.cold (kernel/sched/core.c:9234) [ 14.484875][ T83] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 14.484879][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.484882][ 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)) [ 14.484886][ T83] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 14.484889][ T83] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 14.484894][ 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) [ 14.484895][ T83] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 14.484898][ T83] put_chars (drivers/char/virtio_console.c:1176) [ 14.484900][ T83] ? __send_to_port (drivers/char/virtio_console.c:654) [ 14.484905][ T83] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 14.484908][ T83] ? console_prepend_replay (kernel/printk/printk.c:3005) [ 14.484910][ T83] ? desc_read (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 kernel/printk/printk_ringbuffer.c:552) [ 14.484912][ T83] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 14.484916][ T83] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 14.484918][ T83] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 14.484920][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.484921][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.484922][ T83] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.484925][ T83] console_emit_next_record (kernel/printk/printk.c:3183) [ 14.484928][ T83] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 14.484930][ T83] ? _prb_read_valid (kernel/printk/printk_ringbuffer.c:1996) [ 14.484932][ T83] ? __asan_memmove (mm/kasan/shadow.c:95 (discriminator 1)) [ 14.484934][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.484935][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.484936][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.484937][ T83] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.484940][ T83] ? console_flush_one_record (kernel/printk/printk.c:3247) [ 14.484941][ T83] console_flush_one_record (kernel/printk/printk.c:3268) [ 14.484944][ T83] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 14.484947][ T83] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 14.484949][ T83] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.484951][ T83] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 14.484953][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.484954][ T83] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 14.484955][ T83] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 14.484957][ T83] ? sync_exp_reset_tree_hotplug (kernel/rcu/tree_exp.h:98) [ 14.484959][ T83] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 14.484961][ T83] ? vprintk_emit (kernel/printk/printk.c:2478) [ 14.484962][ T83] vprintk_emit (kernel/printk/printk.c:2479) [ 14.484964][ T83] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 14.484966][ T83] ? do_raw_read_unlock (kernel/locking/spinlock_debug.c:180) [ 14.484968][ T83] ? forget_original_parent (kernel/exit.c:635 kernel/exit.c:740) [ 14.484970][ T83] _printk (kernel/printk/printk.c:2504) [ 14.484973][ T83] ? snapshot_read.cold (user.c:?) [ 14.484975][ T83] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 14.484977][ T83] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 14.484978][ T83] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 14.484981][ T83] ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116) [ 14.484983][ T83] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 14.484986][ T83] ? vfs_read (fs/read_write.c:574) [ 14.484988][ T83] ? exit_notify (kernel/exit.c:780) [ 14.484990][ T83] ? posixtimer_sig_unignore.isra.0 (kernel/signal.c:1971 (discriminator 3)) [ 14.484992][ T83] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.484994][ T83] do_group_exit (kernel/exit.c:1151) [ 14.484996][ T83] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 14.484997][ T83] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 14.485000][ T83] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 14.485003][ T83] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 14.485005][ T83] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 14.485007][ T83] RIP: 0033:0x7f44d1cdf1b8 [ 14.485009][ T83] Code: Unable to access opcode bytes at 0x7f44d1cdf18e. Code starting with the faulting instruction =========================================== [ 14.485010][ T83] RSP: 002b:00007fff918430e8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 14.485013][ T83] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f44d1cdf1b8 [ 14.485015][ T83] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 14.485016][ T83] RBP: 00007fff91843270 R08: 000055d9f7cd29d8 R09: 0000000000000000 [ 14.485017][ T83] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 Finger prints: __kmalloc_noprof:put_chars:hvc_console_print:console_emit_next_record:console_flush_one_record __irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print