====================================== | [ 9.323540][ T205] softirqs last disabled at (19398): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 9.323543][ T205] Preemption disabled at: | [ 9.323544][ T205] 0x0 | [ 9.323554][ T205] Tainted: [W]=WARN [ 9.323555][ T205] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.323556][ T205] Call Trace: [ 9.323558][ T205] [ 9.323559][ T205] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.323566][ T205] __might_resched.cold (kernel/sched/core.c:9234) [ 9.323571][ T205] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.323575][ T205] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.323580][ T205] __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)) [ 9.323582][ T205] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.323588][ T205] ? 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) [ 9.323590][ T205] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.323594][ T205] put_chars (drivers/char/virtio_console.c:1176) [ 9.323596][ T205] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.323597][ T205] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.323601][ T205] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.323606][ T205] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.323613][ T205] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.323616][ T205] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.323618][ T205] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.323622][ T205] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.323626][ T205] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.323628][ T205] ? 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)) [ 9.323631][ T205] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.323632][ T205] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.323636][ T205] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.323640][ T205] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.323642][ T205] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.323647][ T205] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.323650][ T205] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.323652][ T205] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.323653][ T205] ? 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) [ 9.323657][ T205] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.323659][ T205] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.323661][ T205] vprintk_emit (kernel/printk/printk.c:2479) [ 9.323665][ T205] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.323667][ T205] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.323671][ T205] _printk (kernel/printk/printk.c:2504) [ 9.323674][ T205] ? snapshot_read.cold (user.c:?) [ 9.323677][ T205] ? 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) [ 9.323680][ T205] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.323683][ T205] ? 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) [ 9.323686][ T205] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.323690][ T205] ? exit_notify (kernel/exit.c:780) [ 9.323691][ T205] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.323694][ T205] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.323697][ T205] do_group_exit (kernel/exit.c:1151) [ 9.323700][ T205] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.323702][ T205] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.323704][ T205] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.323708][ T205] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.323710][ T205] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.323713][ T205] RIP: 0033:0x7f9ccee9a1b8 [ 9.323715][ T205] Code: Unable to access opcode bytes at 0x7f9ccee9a18e. Code starting with the faulting instruction =========================================== [ 9.323716][ T205] RSP: 002b:00007ffcfc2bb7f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.323719][ T205] RAX: ffffffffffffffda RBX: 00007f9ccefcaf88 RCX: 00007f9ccee9a1b8 [ 9.323720][ T205] RDX: 00007f9ccebe4fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.323721][ T205] RBP: 00007ffcfc2bb850 R08: 0000000000000000 R09: 0000000000000050 [ 9.323722][ T205] R10: 00007ffcfc2bb610 R11: 0000000000000246 R12: 0000000000000001 [ 9.323722][ T205] R13: 0000000000000000 R14: 00007f9ccefc9680 R15: 00007f9ccefcafa0 | [ 10.442099][ T238] softirqs last disabled at (18178): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 10.442102][ T238] Preemption disabled at: | [ 10.442103][ T238] vprintk_emit (kernel/printk/printk.c:2471) | [ 10.442111][ T238] Tainted: [W]=WARN [ 10.442112][ T238] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.442114][ T238] Call Trace: [ 10.442115][ T238] [ 10.442117][ T238] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.442123][ T238] ? vprintk_emit (kernel/printk/printk.c:2471) [ 10.442124][ T238] __might_resched.cold (kernel/sched/core.c:9234) [ 10.442129][ T238] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.442133][ T238] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.442138][ T238] __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)) [ 10.442140][ T238] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.442146][ T238] ? 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) [ 10.442149][ T238] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.442152][ T238] put_chars (drivers/char/virtio_console.c:1176) [ 10.442155][ T238] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.442161][ T238] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.442168][ T238] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.442171][ T238] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.442175][ T238] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.442179][ T238] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.442181][ T238] ? 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)) [ 10.442184][ T238] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.442187][ T238] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.442191][ T238] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.442195][ T238] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.442197][ T238] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.442202][ T238] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.442204][ T238] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.442206][ T238] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.442208][ T238] ? 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) [ 10.442212][ T238] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.442213][ T238] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.442216][ T238] vprintk_emit (kernel/printk/printk.c:2479) [ 10.442219][ T238] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.442221][ T238] ? save_trace (kernel/locking/lockdep.c:589) [ 10.442225][ T238] _printk (kernel/printk/printk.c:2504) [ 10.442228][ T238] ? snapshot_read.cold (user.c:?) [ 10.442232][ T238] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 10.442234][ T238] ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1)) [ 10.442238][ T238] ? __netdev_printk (net/core/dev.c:13148 (discriminator 2)) [ 10.442241][ T238] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.442243][ T238] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 10.442245][ T238] ? netdev_notice (net/core/dev.c:13194) [ 10.442248][ T238] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.442251][ T238] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.442253][ T238] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 10.442257][ T238] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.442259][ T238] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 10.442261][ T238] ? register_netdev (net/core/dev.c:11618) [ 10.442262][ T238] ? 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)) [ 10.442267][ T238] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 10.442269][ T238] ? __kernel_text_address (kernel/extable.c:79) [ 10.442272][ T238] ? write_profile (profile.c:?) [ 10.442276][ T238] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 10.442281][ T238] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 10.442284][ T238] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 10.442287][ T238] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 10.442288][ T238] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 10.442290][ T238] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 10.442294][ T238] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.442296][ T238] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 10.442298][ T238] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.442300][ T238] ? kasan_save_stack (mm/kasan/common.c:58) [ 10.442302][ T238] ? kasan_save_stack (mm/kasan/common.c:57) [ 10.442304][ T238] ? kasan_save_track (mm/kasan/common.c:78) [ 10.442305][ T238] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 10.442307][ T238] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.442309][ T238] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 10.442312][ T238] ? ___sys_sendmsg (net/socket.c:2758) [ 10.442315][ T238] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.442317][ T238] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.442320][ T238] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.442321][ T238] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.442323][ T238] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.442324][ T238] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.442326][ T238] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 10.442328][ T238] ? __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) [ 10.442331][ T238] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 10.442333][ T238] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 10.442336][ T238] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 10.442337][ T238] ? nla_get_range_signed (lib/nlattr.c:270) [ 10.442342][ T238] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.442344][ T238] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 10.442349][ T238] rtnl_newlink (net/core/rtnetlink.c:4215) [ 10.442354][ T238] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.442356][ T238] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.442360][ T238] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.442362][ T238] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.442364][ T238] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.442366][ T238] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.442370][ T238] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 10.442372][ T238] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 10.442375][ T238] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.442376][ T238] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.442380][ T238] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 10.442382][ T238] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.442386][ T238] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 10.442389][ T238] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 10.442392][ T238] ? netlink_ack (./include/linux/skbuff.h:2718) [ 10.442398][ T238] ? 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)) [ 10.442400][ T238] ? 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)) [ 10.442404][ T238] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 10.442408][ T238] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 10.442411][ T238] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 10.442415][ T238] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 10.442419][ T238] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 10.442422][ T238] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.442424][ T238] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 10.442429][ T238] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 10.442432][ T238] ____sys_sendmsg (net/socket.c:2713) [ 10.442434][ T238] ? copy_msghdr_from_user (net/socket.c:2650) [ 10.442436][ T238] ? sock_write_iter (net/socket.c:1269) [ 10.442438][ T238] ? move_addr_to_kernel (net/socket.c:258) [ 10.442445][ T238] ___sys_sendmsg (net/socket.c:2767) [ 10.442448][ T238] ? copy_msghdr_from_user (net/socket.c:2619) [ 10.442463][ T238] __sys_sendmsg (net/socket.c:2799) [ 10.442466][ T238] ? __sys_sendmsg_sock (net/socket.c:2780) [ 10.442472][ T238] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.442475][ T238] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.442478][ T238] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.442481][ T238] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.442483][ T238] RIP: 0033:0x7f49c3f3b54e [ 10.442487][ T238] 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 [ 10.442489][ T238] RSP: 002b:00007ffdec15b090 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 10.442491][ T238] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f49c3f3b54e [ 10.442493][ T238] RDX: 0000000000000000 RSI: 00007ffdec15b140 RDI: 0000000000000005 [ 10.442493][ T238] RBP: 00007ffdec15b0a0 R08: 0000000000000000 R09: 0000000000000000 [ 10.442494][ T238] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90f5a3 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