====================================== | [ 9.267401][ T202] softirqs last disabled at (21719): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.267404][ T202] Preemption disabled at: | [ 9.267404][ T202] 0x0 | [ 9.267415][ T202] Tainted: [W]=WARN [ 9.267416][ T202] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.267417][ T202] Call Trace: [ 9.267419][ T202] [ 9.267420][ T202] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.267427][ T202] __might_resched.cold (kernel/sched/core.c:9234) [ 9.267431][ T202] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.267435][ T202] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.267439][ T202] __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)) [ 9.267441][ T202] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.267448][ T202] ? 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) [ 9.267451][ T202] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.267455][ T202] put_chars (drivers/char/virtio_console.c:1176) [ 9.267457][ T202] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.267458][ T202] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.267462][ T202] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.267467][ T202] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.267475][ T202] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.267477][ T202] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.267479][ T202] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.267483][ T202] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.267487][ T202] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.267489][ T202] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 9.267492][ T202] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.267494][ T202] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.267498][ T202] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.267502][ T202] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.267504][ T202] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.267509][ T202] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.267511][ T202] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.267513][ T202] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.267515][ T202] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 9.267518][ T202] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.267520][ T202] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.267523][ T202] vprintk_emit (kernel/printk/printk.c:2479) [ 9.267526][ T202] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.267529][ T202] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.267532][ T202] _printk (kernel/printk/printk.c:2504) [ 9.267536][ T202] ? snapshot_read.cold (user.c:?) [ 9.267539][ T202] ? 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) [ 9.267541][ T202] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.267545][ T202] ? 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) [ 9.267548][ T202] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.267551][ T202] ? exit_notify (kernel/exit.c:780) [ 9.267553][ T202] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.267558][ T202] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.267561][ T202] do_group_exit (kernel/exit.c:1151) [ 9.267564][ T202] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.267566][ T202] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.267568][ T202] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.267572][ T202] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.267575][ T202] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.267577][ T202] RIP: 0033:0x7f5ea52071b8 [ 9.267580][ T202] Code: Unable to access opcode bytes at 0x7f5ea520718e. Code starting with the faulting instruction =========================================== [ 9.267581][ T202] RSP: 002b:00007ffee9d20b58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.267583][ T202] RAX: ffffffffffffffda RBX: 00007f5ea5337f88 RCX: 00007f5ea52071b8 [ 9.267584][ T202] RDX: 00007f5ea4f51fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.267585][ T202] RBP: 00007ffee9d20bb0 R08: 0000000000000000 R09: 0000000000000050 [ 9.267586][ T202] R10: 00007ffee9d20970 R11: 0000000000000246 R12: 0000000000000001 [ 9.267587][ T202] R13: 0000000000000000 R14: 00007f5ea5336680 R15: 00007f5ea5337fa0 | [ 10.591331][ T255] softirqs last disabled at (21064): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 10.591334][ T255] Preemption disabled at: | [ 10.591335][ T255] vprintk_emit (kernel/printk/printk.c:2471) | [ 10.591344][ T255] Tainted: [W]=WARN [ 10.591345][ T255] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.591347][ T255] Call Trace: [ 10.591348][ T255] [ 10.591350][ T255] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.591356][ T255] ? vprintk_emit (kernel/printk/printk.c:2471) [ 10.591358][ T255] __might_resched.cold (kernel/sched/core.c:9234) [ 10.591363][ T255] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.591367][ T255] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.591372][ T255] __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)) [ 10.591373][ T255] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.591380][ T255] ? 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) [ 10.591383][ T255] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.591387][ T255] put_chars (drivers/char/virtio_console.c:1176) [ 10.591390][ T255] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.591396][ T255] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.591404][ T255] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.591407][ T255] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.591412][ T255] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.591416][ T255] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.591418][ T255] ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2)) [ 10.591422][ T255] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.591424][ T255] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.591428][ T255] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.591433][ T255] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.591434][ T255] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.591440][ T255] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.591443][ T255] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.591445][ T255] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.591447][ T255] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 10.591450][ T255] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.591452][ T255] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.591455][ T255] vprintk_emit (kernel/printk/printk.c:2479) [ 10.591458][ T255] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.591460][ T255] ? save_trace (kernel/locking/lockdep.c:589) [ 10.591465][ T255] _printk (kernel/printk/printk.c:2504) [ 10.591468][ T255] ? snapshot_read.cold (user.c:?) [ 10.591472][ T255] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 10.591474][ T255] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 10.591478][ T255] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 10.591481][ T255] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.591483][ T255] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 10.591486][ T255] ? netdev_notice (net/core/dev.c:13194) [ 10.591488][ T255] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.591491][ T255] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.591494][ T255] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 10.591498][ T255] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.591500][ T255] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 10.591502][ T255] ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2)) [ 10.591507][ T255] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 10.591510][ T255] ? __kernel_text_address (kernel/extable.c:79) [ 10.591512][ T255] ? write_profile (profile.c:?) [ 10.591517][ T255] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 10.591523][ T255] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.591526][ T255] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 10.591528][ T255] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 10.591529][ T255] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 10.591532][ T255] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 10.591536][ T255] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.591538][ T255] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 10.591540][ T255] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.591542][ T255] ? kasan_save_stack (mm/kasan/common.c:58) [ 10.591544][ T255] ? kasan_save_stack (mm/kasan/common.c:57) [ 10.591545][ T255] ? kasan_save_track (mm/kasan/common.c:78) [ 10.591547][ T255] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 10.591549][ T255] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.591551][ T255] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 10.591558][ T255] ? ___sys_sendmsg (net/socket.c:2758) [ 10.591563][ T255] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.591565][ T255] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.591568][ T255] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.591570][ T255] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.591571][ T255] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.591573][ T255] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.591574][ T255] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 10.591577][ T255] ? __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) [ 10.591580][ T255] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 10.591582][ T255] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.591585][ T255] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 10.591586][ T255] ? nla_get_range_signed (lib/nlattr.c:270) [ 10.591591][ T255] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.591594][ T255] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 10.591599][ T255] rtnl_newlink (net/core/rtnetlink.c:4215) [ 10.591605][ T255] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.591607][ T255] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.591611][ T255] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.591613][ T255] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.591615][ T255] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.591617][ T255] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.591621][ T255] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.591623][ T255] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 10.591626][ T255] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.591628][ T255] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.591632][ T255] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.591634][ T255] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.591638][ T255] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 10.591641][ T255] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.591644][ T255] ? netlink_ack (./include/linux/skbuff.h:2718) [ 10.591651][ T255] ? 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)) [ 10.591653][ T255] ? 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)) [ 10.591657][ T255] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 10.591661][ T255] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 10.591664][ T255] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.591669][ T255] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 10.591673][ T255] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 10.591677][ T255] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.591678][ T255] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 10.591684][ T255] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 10.591687][ T255] ____sys_sendmsg (net/socket.c:2713) [ 10.591689][ T255] ? copy_msghdr_from_user (net/socket.c:2650) [ 10.591691][ T255] ? sock_write_iter (net/socket.c:1269) [ 10.591693][ T255] ? move_addr_to_kernel (net/socket.c:258) [ 10.591701][ T255] ___sys_sendmsg (net/socket.c:2767) [ 10.591703][ T255] ? copy_msghdr_from_user (net/socket.c:2619) [ 10.591720][ T255] __sys_sendmsg (net/socket.c:2799) [ 10.591724][ T255] ? __sys_sendmsg_sock (net/socket.c:2780) [ 10.591730][ T255] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.591733][ T255] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.591736][ T255] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.591739][ T255] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.591741][ T255] RIP: 0033:0x7fcaf811d54e [ 10.591745][ T255] 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 [ 10.591747][ T255] RSP: 002b:00007ffc11a2a7f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 10.591749][ T255] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fcaf811d54e [ 10.591751][ T255] RDX: 0000000000000000 RSI: 00007ffc11a2a8a0 RDI: 0000000000000005 [ 10.591752][ T255] RBP: 00007ffc11a2a800 R08: 0000000000000000 R09: 0000000000000000 [ 10.591753][ T255] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a911442 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars