====================================== | [ 11.431566][ T203] softirqs last disabled at (33932): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 11.431569][ T203] Preemption disabled at: | [ 11.431570][ T203] 0x0 | [ 11.431580][ T203] Tainted: [W]=WARN [ 11.431581][ T203] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.431583][ T203] Call Trace: [ 11.431584][ T203] [ 11.431586][ T203] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.431593][ T203] __might_resched.cold (kernel/sched/core.c:9234) [ 11.431597][ T203] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.431602][ T203] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.431606][ T203] __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)) [ 11.431608][ T203] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.431615][ T203] ? 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) [ 11.431618][ T203] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.431622][ T203] put_chars (drivers/char/virtio_console.c:1176) [ 11.431625][ T203] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.431626][ T203] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.431630][ T203] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.431635][ T203] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.431643][ T203] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.431646][ T203] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.431648][ T203] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.431652][ T203] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.431657][ T203] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.431659][ T203] ? 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)) [ 11.431662][ T203] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.431664][ T203] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.431668][ T203] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.431673][ T203] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.431675][ T203] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.431680][ T203] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.431683][ T203] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.431685][ T203] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.431687][ T203] ? 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) [ 11.431691][ T203] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.431693][ T203] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.431696][ T203] vprintk_emit (kernel/printk/printk.c:2479) [ 11.431699][ T203] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.431702][ T203] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.431706][ T203] _printk (kernel/printk/printk.c:2504) [ 11.431710][ T203] ? snapshot_read.cold (user.c:?) [ 11.431713][ T203] ? 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) [ 11.431716][ T203] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 11.431720][ T203] ? 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) [ 11.431723][ T203] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 11.431727][ T203] ? exit_notify (kernel/exit.c:780) [ 11.431728][ T203] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.431731][ T203] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.431735][ T203] do_group_exit (kernel/exit.c:1151) [ 11.431738][ T203] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 11.431740][ T203] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 11.431742][ T203] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.431746][ T203] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.431749][ T203] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.431752][ T203] RIP: 0033:0x7f44c0a1c1b8 [ 11.431754][ T203] Code: Unable to access opcode bytes at 0x7f44c0a1c18e. Code starting with the faulting instruction =========================================== [ 11.431755][ T203] RSP: 002b:00007ffcade967b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.431757][ T203] RAX: ffffffffffffffda RBX: 00007f44c0b4cf88 RCX: 00007f44c0a1c1b8 [ 11.431759][ T203] RDX: 00007f44c0766fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 11.431760][ T203] RBP: 00007ffcade96810 R08: 0000000000000000 R09: 0000000000000000 [ 11.431760][ T203] R10: 00007ffcade965d0 R11: 0000000000000246 R12: 0000000000000001 [ 11.431761][ T203] R13: 0000000000000000 R14: 00007f44c0b4b680 R15: 00007f44c0b4cfa0 | [ 12.562542][ T242] softirqs last disabled at (16132): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 12.562545][ T242] Preemption disabled at: | [ 12.562545][ T242] vprintk_emit (kernel/printk/printk.c:2471) | [ 12.562555][ T242] Tainted: [W]=WARN [ 12.562556][ T242] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.562557][ T242] Call Trace: [ 12.562559][ T242] [ 12.562560][ T242] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.562566][ T242] ? vprintk_emit (kernel/printk/printk.c:2471) [ 12.562568][ T242] __might_resched.cold (kernel/sched/core.c:9234) [ 12.562573][ T242] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.562577][ T242] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.562582][ T242] __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)) [ 12.562584][ T242] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.562590][ T242] ? 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) [ 12.562593][ T242] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.562597][ T242] put_chars (drivers/char/virtio_console.c:1176) [ 12.562600][ T242] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.562607][ T242] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.562615][ T242] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.562618][ T242] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.562623][ T242] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.562627][ T242] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.562629][ T242] ? 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)) [ 12.562632][ T242] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.562635][ T242] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.562639][ T242] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.562643][ T242] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.562645][ T242] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.562651][ T242] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.562654][ T242] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.562656][ T242] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.562658][ T242] ? 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) [ 12.562662][ T242] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.562663][ T242] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.562666][ T242] vprintk_emit (kernel/printk/printk.c:2479) [ 12.562669][ T242] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.562672][ T242] ? save_trace (kernel/locking/lockdep.c:589) [ 12.562676][ T242] _printk (kernel/printk/printk.c:2504) [ 12.562680][ T242] ? snapshot_read.cold (user.c:?) [ 12.562684][ T242] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 12.562686][ T242] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 12.562690][ T242] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 12.562693][ T242] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 12.562695][ T242] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 12.562698][ T242] ? netdev_notice (net/core/dev.c:13194) [ 12.562701][ T242] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.562704][ T242] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.562707][ T242] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 12.562710][ T242] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 12.562713][ T242] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 12.562715][ T242] ? 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)) [ 12.562721][ T242] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 12.562723][ T242] ? __kernel_text_address (kernel/extable.c:79) [ 12.562726][ T242] ? write_profile (profile.c:?) [ 12.562730][ T242] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 12.562736][ T242] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 12.562740][ T242] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 12.562742][ T242] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 12.562743][ T242] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 12.562746][ T242] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 12.562752][ T242] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.562754][ T242] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.562756][ T242] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.562758][ T242] ? kasan_save_stack (mm/kasan/common.c:58) [ 12.562760][ T242] ? kasan_save_stack (mm/kasan/common.c:57) [ 12.562762][ T242] ? kasan_save_track (mm/kasan/common.c:78) [ 12.562763][ T242] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 12.562766][ T242] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.562768][ T242] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 12.562771][ T242] ? ___sys_sendmsg (net/socket.c:2758) [ 12.562775][ T242] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.562777][ T242] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 12.562780][ T242] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.562781][ T242] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.562783][ T242] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.562784][ T242] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.562786][ T242] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 12.562788][ T242] ? __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) [ 12.562791][ T242] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 12.562793][ T242] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 12.562796][ T242] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 12.562798][ T242] ? nla_get_range_signed (lib/nlattr.c:270) [ 12.562803][ T242] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.562805][ T242] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 12.562811][ T242] rtnl_newlink (net/core/rtnetlink.c:4215) [ 12.562817][ T242] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.562819][ T242] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.562824][ T242] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.562826][ T242] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.562828][ T242] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.562835][ T242] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.562839][ T242] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 12.562841][ T242] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 12.562845][ T242] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 12.562846][ T242] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.562851][ T242] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 12.562853][ T242] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.562856][ T242] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 12.562859][ T242] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 12.562862][ T242] ? netlink_ack (./include/linux/skbuff.h:2718) [ 12.562869][ T242] ? 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)) [ 12.562871][ T242] ? 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)) [ 12.562876][ T242] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 12.562880][ T242] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 12.562883][ T242] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 12.562888][ T242] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 12.562892][ T242] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 12.562896][ T242] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.562898][ T242] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 12.562903][ T242] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 12.562906][ T242] ____sys_sendmsg (net/socket.c:2713) [ 12.562908][ T242] ? copy_msghdr_from_user (net/socket.c:2650) [ 12.562910][ T242] ? sock_write_iter (net/socket.c:1269) [ 12.562912][ T242] ? move_addr_to_kernel (net/socket.c:258) [ 12.562920][ T242] ___sys_sendmsg (net/socket.c:2767) [ 12.562923][ T242] ? copy_msghdr_from_user (net/socket.c:2619) [ 12.562940][ T242] __sys_sendmsg (net/socket.c:2799) [ 12.562943][ T242] ? __sys_sendmsg_sock (net/socket.c:2780) [ 12.562951][ T242] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.562954][ T242] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.562957][ T242] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.562960][ T242] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.562962][ T242] RIP: 0033:0x7f2df98fa54e [ 12.562966][ T242] 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 [ 12.562968][ T242] RSP: 002b:00007ffdce6a3cc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 12.562970][ T242] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f2df98fa54e [ 12.562972][ T242] RDX: 0000000000000000 RSI: 00007ffdce6a3d70 RDI: 0000000000000005 [ 12.562973][ T242] RBP: 00007ffdce6a3cd0 R08: 0000000000000000 R09: 0000000000000000 [ 12.562973][ T242] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9157ee 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