====================================== | [ 9.994575][ T202] softirqs last disabled at (21070): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 9.994578][ T202] Preemption disabled at: | [ 9.994578][ T202] 0x0 | [ 9.994589][ T202] Tainted: [W]=WARN [ 9.994590][ T202] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.994591][ T202] Call Trace: [ 9.994592][ T202] [ 9.994594][ T202] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.994601][ T202] __might_resched.cold (kernel/sched/core.c:9234) [ 9.994605][ T202] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.994609][ 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) [ 9.994614][ 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)) [ 9.994615][ T202] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.994622][ 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) [ 9.994625][ T202] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.994628][ T202] put_chars (drivers/char/virtio_console.c:1176) [ 9.994631][ T202] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.994632][ T202] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.994635][ T202] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.994641][ T202] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.994648][ T202] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.994651][ T202] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.994653][ T202] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.994657][ T202] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.994661][ T202] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.994662][ 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)) [ 9.994666][ T202] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.994667][ T202] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.994671][ T202] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.994675][ T202] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.994677][ T202] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.994682][ T202] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.994685][ T202] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.994687][ T202] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.994688][ 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) [ 9.994692][ T202] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.994694][ T202] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.994696][ T202] vprintk_emit (kernel/printk/printk.c:2479) [ 9.994700][ T202] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.994702][ T202] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.994706][ T202] _printk (kernel/printk/printk.c:2504) [ 9.994709][ T202] ? snapshot_read.cold (user.c:?) [ 9.994712][ 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) [ 9.994715][ T202] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.994719][ 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) [ 9.994721][ T202] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.994725][ T202] ? exit_notify (kernel/exit.c:780) [ 9.994726][ T202] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.994729][ T202] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.994733][ T202] do_group_exit (kernel/exit.c:1151) [ 9.994735][ T202] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.994737][ T202] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.994740][ T202] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.994745][ T202] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.994749][ T202] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.994752][ T202] RIP: 0033:0x7f5c8de871b8 [ 9.994754][ T202] Code: Unable to access opcode bytes at 0x7f5c8de8718e. Code starting with the faulting instruction =========================================== [ 9.994755][ T202] RSP: 002b:00007ffccc944c98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.994758][ T202] RAX: ffffffffffffffda RBX: 00007f5c8dfb7f88 RCX: 00007f5c8de871b8 [ 9.994759][ T202] RDX: 00007f5c8dbd1fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.994760][ T202] RBP: 00007ffccc944cf0 R08: 0000000000000000 R09: 0000000000000050 [ 9.994761][ T202] R10: 00007ffccc944ab0 R11: 0000000000000246 R12: 0000000000000001 [ 9.994762][ T202] R13: 0000000000000000 R14: 00007f5c8dfb6680 R15: 00007f5c8dfb7fa0 | [ 11.307180][ T256] softirqs last disabled at (14816): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 11.307183][ T256] Preemption disabled at: | [ 11.307183][ T256] vprintk_emit (kernel/printk/printk.c:2471) | [ 11.307192][ T256] Tainted: [W]=WARN [ 11.307193][ T256] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.307195][ T256] Call Trace: [ 11.307197][ T256] [ 11.307198][ T256] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.307205][ T256] ? vprintk_emit (kernel/printk/printk.c:2471) [ 11.307207][ T256] __might_resched.cold (kernel/sched/core.c:9234) [ 11.307211][ T256] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.307216][ T256] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.307220][ T256] __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)) [ 11.307222][ T256] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.307229][ T256] ? 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) [ 11.307232][ T256] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.307235][ T256] put_chars (drivers/char/virtio_console.c:1176) [ 11.307241][ T256] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.307247][ T256] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.307255][ T256] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.307259][ T256] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.307263][ T256] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.307267][ T256] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.307269][ T256] ? 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)) [ 11.307272][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.307275][ T256] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.307279][ T256] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.307283][ T256] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.307285][ T256] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.307291][ T256] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.307299][ T256] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.307301][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.307303][ T256] ? 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) [ 11.307307][ T256] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.307308][ T256] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.307311][ T256] vprintk_emit (kernel/printk/printk.c:2479) [ 11.307314][ T256] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.307316][ T256] ? save_trace (kernel/locking/lockdep.c:589) [ 11.307321][ T256] _printk (kernel/printk/printk.c:2504) [ 11.307324][ T256] ? snapshot_read.cold (user.c:?) [ 11.307328][ T256] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 11.307330][ T256] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 11.307334][ T256] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 11.307337][ T256] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 11.307339][ T256] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 11.307342][ T256] ? netdev_notice (net/core/dev.c:13194) [ 11.307344][ T256] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.307348][ T256] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.307350][ T256] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 11.307354][ T256] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 11.307356][ T256] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 11.307358][ T256] ? 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)) [ 11.307363][ T256] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 11.307366][ T256] ? __kernel_text_address (kernel/extable.c:79) [ 11.307369][ T256] ? write_profile (profile.c:?) [ 11.307373][ T256] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 11.307378][ T256] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 11.307382][ T256] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 11.307384][ T256] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 11.307385][ T256] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 11.307388][ T256] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 11.307391][ T256] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.307394][ T256] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.307396][ T256] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.307398][ T256] ? kasan_save_stack (mm/kasan/common.c:58) [ 11.307400][ T256] ? kasan_save_stack (mm/kasan/common.c:57) [ 11.307401][ T256] ? kasan_save_track (mm/kasan/common.c:78) [ 11.307403][ T256] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 11.307405][ T256] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.307407][ T256] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 11.307410][ T256] ? ___sys_sendmsg (net/socket.c:2758) [ 11.307414][ T256] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.307416][ T256] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.307418][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.307420][ T256] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.307422][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.307423][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.307424][ T256] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 11.307427][ T256] ? __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) [ 11.307429][ T256] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 11.307431][ T256] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 11.307435][ T256] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 11.307436][ T256] ? nla_get_range_signed (lib/nlattr.c:270) [ 11.307441][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.307443][ T256] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 11.307449][ T256] rtnl_newlink (net/core/rtnetlink.c:4215) [ 11.307454][ T256] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.307456][ T256] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.307461][ T256] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.307463][ T256] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.307465][ T256] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.307466][ T256] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.307470][ T256] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 11.307472][ T256] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.307475][ T256] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.307477][ T256] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.307481][ T256] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.307483][ T256] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.307487][ T256] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 11.307490][ T256] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.307493][ T256] ? netlink_ack (./include/linux/skbuff.h:2718) [ 11.307500][ T256] ? 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)) [ 11.307502][ T256] ? 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)) [ 11.307506][ T256] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 11.307510][ T256] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 11.307513][ T256] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.307517][ T256] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 11.307521][ T256] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 11.307525][ T256] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.307527][ T256] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 11.307532][ T256] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 11.307535][ T256] ____sys_sendmsg (net/socket.c:2713) [ 11.307537][ T256] ? copy_msghdr_from_user (net/socket.c:2650) [ 11.307540][ T256] ? sock_write_iter (net/socket.c:1269) [ 11.307541][ T256] ? move_addr_to_kernel (net/socket.c:258) [ 11.307549][ T256] ___sys_sendmsg (net/socket.c:2767) [ 11.307552][ T256] ? copy_msghdr_from_user (net/socket.c:2619) [ 11.307568][ T256] __sys_sendmsg (net/socket.c:2799) [ 11.307571][ T256] ? __sys_sendmsg_sock (net/socket.c:2780) [ 11.307577][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.307580][ T256] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.307584][ T256] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.307586][ T256] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.307589][ T256] RIP: 0033:0x7f866bb4654e [ 11.307592][ T256] 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 [ 11.307594][ T256] RSP: 002b:00007ffd0e872b30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 11.307597][ T256] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f866bb4654e [ 11.307598][ T256] RDX: 0000000000000000 RSI: 00007ffd0e872be0 RDI: 0000000000000005 [ 11.307599][ T256] RBP: 00007ffd0e872b40 R08: 0000000000000000 R09: 0000000000000000 [ 11.307600][ T256] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a917ff0 Finger prints: netlink_release:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars