====================================== | [ 10.557687][ T200] softirqs last disabled at (22617): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 10.557691][ T200] Preemption disabled at: | [ 10.557691][ T200] 0x0 | [ 10.557704][ T200] Tainted: [W]=WARN [ 10.557705][ T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.557708][ T200] Call Trace: [ 10.557710][ T200] [ 10.557712][ T200] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.557720][ T200] __might_resched.cold (kernel/sched/core.c:9234) [ 10.557726][ T200] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.557731][ T200] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.557738][ T200] __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)) [ 10.557741][ T200] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.557750][ T200] ? 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) [ 10.557754][ T200] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.557760][ T200] put_chars (drivers/char/virtio_console.c:1176) [ 10.557763][ T200] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.557765][ T200] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.557770][ T200] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.557780][ T200] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.557791][ T200] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.557795][ T200] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.557798][ T200] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.557805][ T200] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.557811][ T200] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.557814][ T200] ? 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)) [ 10.557819][ T200] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.557822][ T200] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.557828][ T200] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.557835][ T200] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.557838][ T200] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.557847][ T200] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.557851][ T200] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.557853][ T200] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.557856][ T200] ? 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) [ 10.557863][ T200] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.557865][ T200] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.557870][ T200] vprintk_emit (kernel/printk/printk.c:2479) [ 10.557875][ T200] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.557880][ T200] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.557886][ T200] _printk (kernel/printk/printk.c:2504) [ 10.557891][ T200] ? snapshot_read.cold (user.c:?) [ 10.557896][ T200] ? 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) [ 10.557900][ T200] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.557906][ T200] ? 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) [ 10.557911][ T200] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 10.557916][ T200] ? exit_notify (kernel/exit.c:780) [ 10.557918][ T200] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.557927][ T200] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.557933][ T200] do_group_exit (kernel/exit.c:1151) [ 10.557938][ T200] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 10.557941][ T200] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 10.557944][ T200] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.557949][ T200] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.557953][ T200] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.557957][ T200] RIP: 0033:0x7fab242161b8 [ 10.557960][ T200] Code: Unable to access opcode bytes at 0x7fab2421618e. Code starting with the faulting instruction =========================================== [ 10.557961][ T200] RSP: 002b:00007ffc05715188 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.557964][ T200] RAX: ffffffffffffffda RBX: 00007fab24346f88 RCX: 00007fab242161b8 [ 10.557966][ T200] RDX: 00007fab23f60fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.557968][ T200] RBP: 00007ffc057151e0 R08: 0000000000000000 R09: 0000000000000050 [ 10.557969][ T200] R10: 00007ffc05714fa0 R11: 0000000000000246 R12: 0000000000000001 [ 10.557971][ T200] R13: 0000000000000000 R14: 00007fab24345680 R15: 00007fab24346fa0 | [ 11.857539][ T240] softirqs last disabled at (25140): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 11.857541][ T240] Preemption disabled at: | [ 11.857542][ T240] vprintk_emit (kernel/printk/printk.c:2471) | [ 11.857551][ T240] Tainted: [W]=WARN [ 11.857552][ T240] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.857553][ T240] Call Trace: [ 11.857555][ T240] [ 11.857557][ T240] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.857562][ T240] ? vprintk_emit (kernel/printk/printk.c:2471) [ 11.857564][ T240] __might_resched.cold (kernel/sched/core.c:9234) [ 11.857569][ T240] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.857573][ T240] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.857577][ T240] __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)) [ 11.857579][ T240] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.857586][ T240] ? 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) [ 11.857589][ T240] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.857593][ T240] put_chars (drivers/char/virtio_console.c:1176) [ 11.857595][ T240] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.857601][ T240] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.857609][ T240] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.857612][ T240] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.857617][ T240] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.857620][ T240] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.857622][ T240] ? 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)) [ 11.857625][ T240] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.857628][ T240] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.857632][ T240] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.857636][ T240] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.857638][ T240] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.857643][ T240] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.857646][ T240] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.857648][ T240] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.857650][ T240] ? 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) [ 11.857653][ T240] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.857655][ T240] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.857658][ T240] vprintk_emit (kernel/printk/printk.c:2479) [ 11.857661][ T240] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.857663][ T240] ? save_trace (kernel/locking/lockdep.c:589) [ 11.857667][ T240] _printk (kernel/printk/printk.c:2504) [ 11.857671][ T240] ? snapshot_read.cold (user.c:?) [ 11.857674][ T240] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 11.857676][ T240] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 11.857680][ T240] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 11.857683][ T240] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 11.857685][ T240] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 11.857688][ T240] ? netdev_notice (net/core/dev.c:13194) [ 11.857690][ T240] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.857694][ T240] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.857696][ T240] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 11.857700][ T240] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 11.857702][ T240] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 11.857704][ T240] ? 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)) [ 11.857709][ T240] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 11.857712][ T240] ? __kernel_text_address (kernel/extable.c:79) [ 11.857714][ T240] ? write_profile (profile.c:?) [ 11.857718][ T240] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 11.857724][ T240] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 11.857727][ T240] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 11.857729][ T240] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 11.857731][ T240] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 11.857733][ T240] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 11.857737][ T240] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.857739][ T240] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.857741][ T240] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.857743][ T240] ? kasan_save_stack (mm/kasan/common.c:58) [ 11.857745][ T240] ? kasan_save_stack (mm/kasan/common.c:57) [ 11.857746][ T240] ? kasan_save_track (mm/kasan/common.c:78) [ 11.857747][ T240] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 11.857749][ T240] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.857751][ T240] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 11.857754][ T240] ? ___sys_sendmsg (net/socket.c:2758) [ 11.857758][ T240] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.857760][ T240] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.857763][ T240] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.857764][ T240] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.857766][ T240] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.857767][ T240] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.857769][ T240] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 11.857771][ T240] ? __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) [ 11.857774][ T240] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 11.857776][ T240] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.857779][ T240] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 11.857780][ T240] ? nla_get_range_signed (lib/nlattr.c:270) [ 11.857785][ T240] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.857787][ T240] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 11.857792][ T240] rtnl_newlink (net/core/rtnetlink.c:4215) [ 11.857798][ T240] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.857800][ T240] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.857804][ T240] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.857806][ T240] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.857808][ T240] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.857810][ T240] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.857813][ T240] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.857815][ T240] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.857818][ T240] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.857820][ T240] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.857824][ T240] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.857826][ T240] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.857830][ T240] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 11.857833][ T240] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.857835][ T240] ? netlink_ack (./include/linux/skbuff.h:2718) [ 11.857842][ T240] ? 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)) [ 11.857844][ T240] ? 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)) [ 11.857849][ T240] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 11.857853][ T240] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 11.857855][ T240] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.857859][ T240] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 11.857863][ T240] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 11.857867][ T240] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.857869][ T240] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 11.857874][ T240] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 11.857877][ T240] ____sys_sendmsg (net/socket.c:2713) [ 11.857879][ T240] ? copy_msghdr_from_user (net/socket.c:2650) [ 11.857881][ T240] ? sock_write_iter (net/socket.c:1269) [ 11.857883][ T240] ? move_addr_to_kernel (net/socket.c:258) [ 11.857890][ T240] ___sys_sendmsg (net/socket.c:2767) [ 11.857893][ T240] ? copy_msghdr_from_user (net/socket.c:2619) [ 11.857909][ T240] __sys_sendmsg (net/socket.c:2799) [ 11.857912][ T240] ? __sys_sendmsg_sock (net/socket.c:2780) [ 11.857918][ T240] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.857921][ T240] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.857924][ T240] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.857943][ T240] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.857945][ T240] RIP: 0033:0x7f88444d154e [ 11.857949][ T240] 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 [ 11.857951][ T240] RSP: 002b:00007fff52388f30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 11.857953][ T240] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f88444d154e [ 11.857955][ T240] RDX: 0000000000000000 RSI: 00007fff52388fe0 RDI: 0000000000000005 [ 11.857956][ T240] RBP: 00007fff52388f40 R08: 0000000000000000 R09: 0000000000000000 [ 11.857956][ T240] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a912ce5 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