====================================== | [ 9.243540][ T85] softirqs last disabled at (0): 0x0 | [ 9.243542][ T85] Preemption disabled at: | [ 9.243542][ T85] vprintk_emit (kernel/printk/printk.c:2471) | [ 9.243552][ T85] Tainted: [W]=WARN [ 9.243553][ T85] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.243555][ T85] Call Trace: [ 9.243556][ T85] [ 9.243557][ T85] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.243563][ T85] ? vprintk_emit (kernel/printk/printk.c:2471) [ 9.243565][ T85] __might_resched.cold (kernel/sched/core.c:9234) [ 9.243569][ T85] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.243572][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243575][ T85] __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)) [ 9.243580][ T85] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.243582][ T85] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.243587][ T85] ? 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) [ 9.243589][ T85] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.243591][ T85] put_chars (drivers/char/virtio_console.c:1176) [ 9.243593][ T85] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.243595][ T85] ? console_prepend_replay (kernel/printk/printk.c:3005) [ 9.243598][ T85] ? desc_read (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 kernel/printk/printk_ringbuffer.c:552) [ 9.243600][ T85] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.243604][ T85] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.243605][ T85] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.243607][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243608][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243610][ T85] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.243613][ T85] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.243614][ T85] ? _prb_read_valid (kernel/printk/printk_ringbuffer.c:1996) [ 9.243616][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243617][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243618][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243619][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.243622][ T85] ? console_flush_one_record (kernel/printk/printk.c:3247) [ 9.243624][ T85] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.243626][ T85] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.243629][ T85] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.243631][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.243632][ T85] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.243634][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243635][ T85] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.243637][ T85] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.243638][ T85] ? sync_exp_reset_tree_hotplug (kernel/rcu/tree_exp.h:98) [ 9.243640][ T85] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.243642][ T85] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.243643][ T85] vprintk_emit (kernel/printk/printk.c:2479) [ 9.243645][ T85] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.243647][ T85] ? finish_task_switch.isra.0 (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:1383 ./include/linux/sched/mm.h:54 ./include/linux/sched/mm.h:83 ./include/linux/sched/mm.h:110 kernel/sched/core.c:5402) [ 9.243649][ T85] ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663) [ 9.243652][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243654][ T85] dev_vprintk_emit (drivers/base/core.c:5000) [ 9.243659][ T85] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 9.243661][ T85] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.243663][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243664][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.243666][ T85] dev_printk_emit (drivers/base/core.c:5011) [ 9.243668][ T85] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 9.243670][ T85] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.243671][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243672][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.243674][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243675][ T85] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 9.243679][ T85] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 9.243681][ T85] ? netdev_notice (net/core/dev.c:13194) [ 9.243682][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243683][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.243685][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243686][ T85] ? 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) [ 9.243688][ T85] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.243689][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243690][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243692][ T85] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 9.243694][ T85] ? trace_irq_disable.constprop.0 (./include/trace/events/preemptirq.h:36 (discriminator 22)) [ 9.243696][ T85] ? 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) [ 9.243697][ T85] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.243701][ T85] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 9.243704][ T85] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 9.243708][ T85] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 9.243711][ T85] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 9.243714][ T85] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 9.243715][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.243717][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243718][ T85] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.243720][ T85] ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749) [ 9.243722][ T85] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 9.243723][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243724][ T85] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 9.243726][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.243728][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243729][ T85] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.243731][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243732][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.243733][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243734][ T85] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.243736][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243737][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.243739][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243740][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243741][ T85] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 9.243743][ T85] ? __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) [ 9.243746][ T85] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 9.243748][ T85] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.243749][ T85] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 9.243751][ T85] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 9.243752][ T85] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 9.243754][ T85] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 9.243758][ T85] ? nla_get_range_signed (lib/nlattr.c:270) [ 9.243762][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243764][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.243765][ T85] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 9.243770][ T85] rtnl_setlink (net/core/rtnetlink.c:3596) [ 9.243771][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243773][ T85] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.243775][ T85] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.243781][ T85] ? unwind_next_frame (./include/linux/rcupdate.h:882 ./include/linux/rcupdate.h:1216 arch/x86/kernel/unwind_orc.c:495) [ 9.243783][ T85] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.243785][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243786][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243787][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.243789][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243790][ T85] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.243791][ T85] ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749) [ 9.243792][ T85] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 9.243794][ T85] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 9.243795][ T85] ? __kernel_text_address (kernel/extable.c:79) [ 9.243796][ T85] ? write_profile (profile.c:?) [ 9.243799][ T85] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 9.243800][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243801][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243802][ T85] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 9.243804][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.243805][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243806][ T85] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 9.243815][ T85] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 9.243817][ T85] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.243819][ T85] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 9.243820][ T85] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676) [ 9.243824][ T85] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 9.243827][ T85] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 9.243828][ T85] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.243830][ T85] ? netlink_ack (./include/linux/skbuff.h:2718) [ 9.243832][ T85] ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499) [ 9.243834][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243836][ T85] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.243838][ T85] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 9.243840][ T85] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 9.243842][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.243843][ T85] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.243845][ T85] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 9.243848][ T85] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 9.243849][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.243851][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243852][ T85] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.243854][ T85] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 9.243857][ T85] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 9.243860][ T85] ? __ia32_sys_getpeername (net/socket.c:2235) [ 9.243863][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.243865][ T85] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 9.243867][ T85] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 9.243868][ T85] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 9.243869][ T85] ? 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)) [ 9.243871][ T85] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78) [ 9.243872][ T85] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.243875][ T85] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.243876][ T85] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.243878][ T85] RIP: 0033:0x7f1d20b2a54e [ 9.243880][ T85] 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 [ 9.243882][ T85] RSP: 002b:00007fffb77e8a10 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 9.243886][ T85] RAX: ffffffffffffffda RBX: 000055b29ccc5f50 RCX: 00007f1d20b2a54e [ 9.243887][ T85] RDX: 0000000000000030 RSI: 000055b29ce2d090 RDI: 0000000000000018 [ 9.243888][ T85] RBP: 00007fffb77e8a20 R08: 00007fffb77e8a70 R09: 0000000000000080 [ 9.243888][ T85] R10: 0000000000000000 R11: 0000000000000202 R12: 000055b29ce2c830 [ 9.243889][ T85] R13: 00007fffb77e8b54 R14: 0000000000000000 R15: 0000000000000000 | [ 10.311408][ T85] softirqs last disabled at (0): 0x0 | [ 10.311410][ T85] Preemption disabled at: | [ 10.311410][ T85] vprintk_emit (kernel/printk/printk.c:2471) | [ 10.311420][ T85] Tainted: [W]=WARN [ 10.311421][ T85] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.311423][ T85] Call Trace: [ 10.311424][ T85] [ 10.311425][ T85] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.311430][ T85] ? vprintk_emit (kernel/printk/printk.c:2471) [ 10.311432][ T85] __might_resched.cold (kernel/sched/core.c:9234) [ 10.311436][ T85] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.311439][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311442][ T85] __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)) [ 10.311447][ T85] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.311450][ T85] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.311454][ T85] ? 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) [ 10.311456][ T85] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.311459][ T85] put_chars (drivers/char/virtio_console.c:1176) [ 10.311461][ T85] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.311463][ T85] ? console_prepend_replay (kernel/printk/printk.c:3005) [ 10.311465][ T85] ? desc_read (./include/linux/instrumented.h:97 ./include/linux/atomic/atomic-instrumented.h:3223 kernel/printk/printk_ringbuffer.c:552) [ 10.311467][ T85] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.311471][ T85] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.311473][ T85] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.311474][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311475][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311477][ T85] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.311480][ T85] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.311482][ T85] ? _prb_read_valid (kernel/printk/printk_ringbuffer.c:1996) [ 10.311484][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311485][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311486][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311487][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.311489][ T85] ? console_flush_one_record (kernel/printk/printk.c:3247) [ 10.311491][ T85] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.311494][ T85] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.311496][ T85] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.311498][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.311500][ T85] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.311502][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311503][ T85] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 10.311504][ T85] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 10.311506][ T85] ? sync_exp_reset_tree_hotplug (kernel/rcu/tree_exp.h:98) [ 10.311508][ T85] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.311510][ T85] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.311511][ T85] vprintk_emit (kernel/printk/printk.c:2479) [ 10.311513][ T85] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.311514][ T85] ? 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) [ 10.311516][ T85] ? 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) [ 10.311518][ T85] ? snmp6_register_dev (net/ipv6/proc.c:251) [ 10.311522][ T85] dev_vprintk_emit (drivers/base/core.c:5000) [ 10.311527][ T85] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 10.311529][ T85] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 10.311531][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311532][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.311534][ T85] dev_printk_emit (drivers/base/core.c:5011) [ 10.311536][ T85] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 10.311538][ T85] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 10.311540][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311541][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.311542][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311544][ T85] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 10.311548][ T85] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 10.311550][ T85] ? netdev_notice (net/core/dev.c:13194) [ 10.311551][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311552][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.311554][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311555][ T85] ? 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) [ 10.311557][ T85] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.311558][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311559][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311561][ T85] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 10.311563][ T85] ? trace_irq_disable.constprop.0 (./include/trace/events/preemptirq.h:36 (discriminator 22)) [ 10.311566][ T85] ? 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) [ 10.311567][ T85] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.311570][ T85] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 10.311573][ T85] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 10.311577][ T85] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 10.311580][ T85] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.311583][ T85] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 10.311584][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.311586][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311587][ T85] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 10.311589][ T85] ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749) [ 10.311591][ T85] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 10.311592][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311593][ T85] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 10.311596][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.311597][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311598][ T85] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 10.311600][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311601][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.311603][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311604][ T85] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 10.311606][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311607][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.311608][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311609][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311610][ T85] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 10.311612][ T85] ? __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) [ 10.311615][ T85] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 10.311617][ T85] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 10.311618][ T85] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 10.311620][ T85] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 10.311621][ T85] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 10.311623][ T85] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 10.311625][ T85] ? nla_get_range_signed (lib/nlattr.c:270) [ 10.311628][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311629][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.311631][ T85] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 10.311635][ T85] rtnl_setlink (net/core/rtnetlink.c:3596) [ 10.311637][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311638][ T85] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 10.311640][ T85] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 10.311647][ T85] ? unwind_next_frame (./include/linux/rcupdate.h:882 ./include/linux/rcupdate.h:1216 arch/x86/kernel/unwind_orc.c:495) [ 10.311650][ T85] ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.311652][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311653][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311655][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.311656][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311657][ T85] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 10.311659][ T85] ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749) [ 10.311660][ T85] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 10.311661][ T85] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 10.311663][ T85] ? __kernel_text_address (kernel/extable.c:79) [ 10.311664][ T85] ? write_profile (profile.c:?) [ 10.311666][ T85] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 10.311668][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311669][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311670][ T85] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 10.311672][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.311673][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311674][ T85] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 10.311676][ T85] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 10.311679][ T85] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.311680][ T85] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 10.311682][ T85] ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676) [ 10.311685][ T85] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 10.311688][ T85] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.311690][ T85] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 10.311691][ T85] ? netlink_ack (./include/linux/skbuff.h:2718) [ 10.311693][ T85] ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499) [ 10.311696][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311697][ T85] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 10.311699][ T85] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 10.311702][ T85] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 10.311705][ T85] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 10.311707][ T85] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 10.311709][ T85] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.311711][ T85] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.311712][ T85] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 10.311713][ T85] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 10.311717][ T85] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 10.311719][ T85] ? __ia32_sys_getpeername (net/socket.c:2235) [ 10.311724][ T85] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 10.311725][ T85] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 10.311727][ T85] ? 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)) [ 10.311728][ T85] ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78) [ 10.311730][ T85] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.311732][ T85] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.311734][ T85] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.311736][ T85] RIP: 0033:0x7f1d20b2a54e [ 10.311738][ T85] 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 [ 10.311740][ T85] RSP: 002b:00007fffb77e8a10 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 10.311743][ T85] RAX: ffffffffffffffda RBX: 000055b29ccc5f50 RCX: 00007f1d20b2a54e [ 10.311745][ T85] RDX: 0000000000000030 RSI: 000055b29ce1ffb0 RDI: 0000000000000018 [ 10.311746][ T85] RBP: 00007fffb77e8a20 R08: 00007fffb77e8a70 R09: 0000000000000080 [ 10.311746][ T85] R10: 0000000000000000 R11: 0000000000000202 R12: 000055b29ce34410 Finger prints: vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print