====================================== | [ 10.405669][ T200] softirqs last disabled at (26731): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 10.405671][ T200] Preemption disabled at: | [ 10.405672][ T200] 0x0 | [ 10.405682][ T200] Tainted: [W]=WARN [ 10.405683][ T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.405685][ T200] Call Trace: [ 10.405686][ T200] [ 10.405687][ T200] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.405694][ T200] __might_resched.cold (kernel/sched/core.c:9234) [ 10.405699][ T200] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.405703][ 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) [ 10.405708][ 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)) [ 10.405710][ T200] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.405717][ 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) [ 10.405719][ T200] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.405723][ T200] put_chars (drivers/char/virtio_console.c:1176) [ 10.405726][ T200] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.405727][ T200] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.405731][ T200] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.405736][ T200] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.405744][ T200] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.405747][ T200] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.405749][ T200] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.405753][ T200] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.405757][ T200] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.405759][ 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)) [ 10.405762][ T200] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.405764][ T200] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.405768][ T200] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.405772][ T200] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.405774][ T200] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.405780][ T200] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.405783][ T200] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.405785][ T200] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.405786][ 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) [ 10.405790][ T200] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.405795][ T200] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.405798][ T200] vprintk_emit (kernel/printk/printk.c:2479) [ 10.405801][ T200] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.405804][ T200] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.405808][ T200] _printk (kernel/printk/printk.c:2504) [ 10.405812][ T200] ? snapshot_read.cold (user.c:?) [ 10.405815][ 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) [ 10.405817][ T200] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.405821][ 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) [ 10.405824][ T200] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 10.405828][ T200] ? exit_notify (kernel/exit.c:780) [ 10.405829][ T200] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.405832][ T200] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.405836][ T200] do_group_exit (kernel/exit.c:1151) [ 10.405839][ T200] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 10.405841][ T200] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 10.405843][ T200] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.405847][ T200] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.405850][ T200] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.405852][ T200] RIP: 0033:0x7fd3b640e1b8 [ 10.405855][ T200] Code: Unable to access opcode bytes at 0x7fd3b640e18e. Code starting with the faulting instruction =========================================== [ 10.405856][ T200] RSP: 002b:00007ffcdb8e8ca8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.405859][ T200] RAX: ffffffffffffffda RBX: 00007fd3b653ef88 RCX: 00007fd3b640e1b8 [ 10.405860][ T200] RDX: 00007fd3b6158fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.405861][ T200] RBP: 00007ffcdb8e8d00 R08: 0000000000000000 R09: 0000000000000050 [ 10.405862][ T200] R10: 00007ffcdb8e8ac0 R11: 0000000000000246 R12: 0000000000000001 [ 10.405863][ T200] R13: 0000000000000000 R14: 00007fd3b653d680 R15: 00007fd3b653efa0 | [ 11.774639][ T239] softirqs last disabled at (22182): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 11.774642][ T239] Preemption disabled at: | [ 11.774643][ T239] vprintk_emit (kernel/printk/printk.c:2471) | [ 11.774651][ T239] Tainted: [W]=WARN [ 11.774652][ T239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.774654][ T239] Call Trace: [ 11.774656][ T239] [ 11.774657][ T239] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.774663][ T239] ? vprintk_emit (kernel/printk/printk.c:2471) [ 11.774665][ T239] __might_resched.cold (kernel/sched/core.c:9234) [ 11.774669][ T239] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.774674][ T239] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.774678][ T239] __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)) [ 11.774680][ T239] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.774687][ T239] ? 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) [ 11.774690][ T239] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.774694][ T239] put_chars (drivers/char/virtio_console.c:1176) [ 11.774696][ T239] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.774703][ T239] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.774711][ T239] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.774714][ T239] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.774719][ T239] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.774723][ T239] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.774725][ T239] ? 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)) [ 11.774728][ T239] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.774731][ T239] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.774735][ T239] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.774739][ T239] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.774741][ T239] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.774747][ T239] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.774750][ T239] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.774752][ T239] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.774753][ T239] ? 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) [ 11.774757][ T239] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.774759][ T239] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.774762][ T239] vprintk_emit (kernel/printk/printk.c:2479) [ 11.774765][ T239] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.774767][ T239] ? save_trace (kernel/locking/lockdep.c:589) [ 11.774772][ T239] _printk (kernel/printk/printk.c:2504) [ 11.774775][ T239] ? snapshot_read.cold (user.c:?) [ 11.774779][ T239] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 11.774781][ T239] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 11.774785][ T239] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 11.774788][ T239] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 11.774791][ T239] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 11.774796][ T239] ? netdev_notice (net/core/dev.c:13194) [ 11.774799][ T239] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.774802][ T239] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.774805][ T239] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 11.774809][ T239] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 11.774811][ T239] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 11.774813][ T239] ? 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)) [ 11.774819][ T239] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 11.774822][ T239] ? __kernel_text_address (kernel/extable.c:79) [ 11.774824][ T239] ? write_profile (profile.c:?) [ 11.774829][ T239] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 11.774834][ T239] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 11.774838][ T239] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 11.774840][ T239] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 11.774842][ T239] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 11.774844][ T239] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 11.774848][ T239] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.774850][ T239] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.774852][ T239] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.774854][ T239] ? kasan_save_stack (mm/kasan/common.c:58) [ 11.774856][ T239] ? kasan_save_stack (mm/kasan/common.c:57) [ 11.774858][ T239] ? kasan_save_track (mm/kasan/common.c:78) [ 11.774859][ T239] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 11.774861][ T239] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.774863][ T239] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 11.774866][ T239] ? ___sys_sendmsg (net/socket.c:2758) [ 11.774870][ T239] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.774872][ T239] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.774875][ T239] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.774877][ T239] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.774878][ T239] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.774880][ T239] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.774881][ T239] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 11.774884][ T239] ? __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) [ 11.774886][ T239] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 11.774888][ T239] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.774897][ T239] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 11.774898][ T239] ? nla_get_range_signed (lib/nlattr.c:270) [ 11.774904][ T239] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.774906][ T239] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 11.774912][ T239] rtnl_newlink (net/core/rtnetlink.c:4215) [ 11.774917][ T239] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.774919][ T239] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.774924][ T239] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.774926][ T239] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.774928][ T239] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.774930][ T239] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.774934][ T239] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.774936][ T239] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.774939][ T239] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.774941][ T239] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.774945][ T239] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.774947][ T239] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.774951][ T239] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 11.774954][ T239] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.774957][ T239] ? netlink_ack (./include/linux/skbuff.h:2718) [ 11.774964][ T239] ? 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)) [ 11.774966][ T239] ? 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)) [ 11.774971][ T239] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 11.774975][ T239] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 11.774978][ T239] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.774982][ T239] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 11.774986][ T239] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 11.774990][ T239] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.774992][ T239] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 11.774997][ T239] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 11.775000][ T239] ____sys_sendmsg (net/socket.c:2713) [ 11.775003][ T239] ? copy_msghdr_from_user (net/socket.c:2650) [ 11.775005][ T239] ? sock_write_iter (net/socket.c:1269) [ 11.775007][ T239] ? move_addr_to_kernel (net/socket.c:258) [ 11.775014][ T239] ___sys_sendmsg (net/socket.c:2767) [ 11.775017][ T239] ? copy_msghdr_from_user (net/socket.c:2619) [ 11.775034][ T239] __sys_sendmsg (net/socket.c:2799) [ 11.775037][ T239] ? __sys_sendmsg_sock (net/socket.c:2780) [ 11.775044][ T239] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.775047][ T239] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.775050][ T239] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.775053][ T239] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.775055][ T239] RIP: 0033:0x7fa0909dd54e [ 11.775059][ T239] 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 [ 11.775061][ T239] RSP: 002b:00007ffc04ee1610 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 11.775063][ T239] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa0909dd54e [ 11.775065][ T239] RDX: 0000000000000000 RSI: 00007ffc04ee16c0 RDI: 0000000000000005 [ 11.775066][ T239] RBP: 00007ffc04ee1620 R08: 0000000000000000 R09: 0000000000000000 [ 11.775066][ T239] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91ab53 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