====================================== | [ 10.680008][ T220] softirqs last disabled at (30253): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 10.680011][ T220] Preemption disabled at: | [ 10.680011][ T220] 0x0 | [ 10.680021][ T220] Tainted: [W]=WARN [ 10.680022][ T220] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.680024][ T220] Call Trace: [ 10.680025][ T220] [ 10.680027][ T220] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.680034][ T220] __might_resched.cold (kernel/sched/core.c:9234) [ 10.680038][ T220] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.680042][ T220] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.680053][ T220] __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)) [ 10.680055][ T220] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.680062][ T220] ? 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) [ 10.680064][ T220] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.680068][ T220] put_chars (drivers/char/virtio_console.c:1176) [ 10.680070][ T220] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.680072][ T220] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.680075][ T220] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.680080][ T220] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.680088][ T220] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.680090][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.680092][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.680096][ T220] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.680100][ T220] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.680102][ T220] ? 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)) [ 10.680105][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.680107][ T220] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.680110][ T220] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.680114][ T220] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.680116][ T220] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.680121][ T220] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.680124][ T220] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.680126][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.680128][ T220] ? 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) [ 10.680131][ T220] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.680133][ T220] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.680135][ T220] vprintk_emit (kernel/printk/printk.c:2479) [ 10.680138][ T220] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.680141][ T220] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.680145][ T220] _printk (kernel/printk/printk.c:2504) [ 10.680149][ T220] ? snapshot_read.cold (user.c:?) [ 10.680152][ T220] ? 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) [ 10.680154][ T220] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.680158][ T220] ? 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) [ 10.680161][ T220] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 10.680164][ T220] ? exit_notify (kernel/exit.c:780) [ 10.680166][ T220] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.680168][ T220] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.680172][ T220] do_group_exit (kernel/exit.c:1151) [ 10.680174][ T220] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 10.680176][ T220] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 10.680179][ T220] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.680183][ T220] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.680185][ T220] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.680188][ T220] RIP: 0033:0x7fb44452f1b8 [ 10.680190][ T220] Code: Unable to access opcode bytes at 0x7fb44452f18e. Code starting with the faulting instruction =========================================== [ 10.680191][ T220] RSP: 002b:00007ffd0ab350d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.680193][ T220] RAX: ffffffffffffffda RBX: 00007fb44465ff88 RCX: 00007fb44452f1b8 [ 10.680194][ T220] RDX: 00007fb444279fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.680195][ T220] RBP: 00007ffd0ab35130 R08: 0000000000000000 R09: 0000000000000050 [ 10.680196][ T220] R10: 00007ffd0ab34ef0 R11: 0000000000000246 R12: 0000000000000001 [ 10.680197][ T220] R13: 0000000000000000 R14: 00007fb44465e680 R15: 00007fb44465ffa0 | [ 40.309890][ T1379] softirqs last disabled at (22690): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2)) | [ 40.309893][ T1379] Preemption disabled at: | [ 40.309893][ T1379] vprintk_emit (kernel/printk/printk.c:2471) | [ 40.309903][ T1379] Tainted: [W]=WARN [ 40.309904][ T1379] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 40.309906][ T1379] Call Trace: [ 40.309907][ T1379] [ 40.309909][ T1379] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 40.309915][ T1379] ? vprintk_emit (kernel/printk/printk.c:2471) [ 40.309917][ T1379] __might_resched.cold (kernel/sched/core.c:9234) [ 40.309921][ T1379] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 40.309925][ T1379] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 40.309930][ T1379] __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)) [ 40.309932][ T1379] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 40.309939][ T1379] ? 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) [ 40.309941][ T1379] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 40.309945][ T1379] put_chars (drivers/char/virtio_console.c:1176) [ 40.309948][ T1379] ? __send_to_port (drivers/char/virtio_console.c:654) [ 40.309950][ T1379] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 40.309956][ T1379] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 40.309964][ T1379] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 40.309966][ T1379] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.309969][ T1379] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 40.309973][ T1379] console_emit_next_record (kernel/printk/printk.c:3183) [ 40.309977][ T1379] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 40.309979][ T1379] ? 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)) [ 40.309982][ T1379] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.309984][ T1379] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 40.309988][ T1379] console_flush_one_record (kernel/printk/printk.c:3268) [ 40.309992][ T1379] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 40.309994][ T1379] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 40.309999][ T1379] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 40.310002][ T1379] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 40.310004][ T1379] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.310006][ T1379] ? 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) [ 40.310009][ T1379] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 40.310011][ T1379] ? vprintk_emit (kernel/printk/printk.c:2478) [ 40.310014][ T1379] vprintk_emit (kernel/printk/printk.c:2479) [ 40.310017][ T1379] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 40.310019][ T1379] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 40.310020][ T1379] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 40.310025][ T1379] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 40.310028][ T1379] _printk (kernel/printk/printk.c:2504) [ 40.310032][ T1379] ? snapshot_read.cold (user.c:?) [ 40.310035][ T1379] ? br_multicast_flood (??:?) [ 40.310039][ T1379] ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 40.310040][ T1379] ? rtnl_newlink (net/core/rtnetlink.c:4215) [ 40.310041][ T1379] ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 40.310046][ T1379] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) [ 40.310051][ T1379] br_init_port (net/bridge/br_stp_if.c:39) [ 40.310053][ T1379] new_nbp (net/bridge/br_if.c:449) [ 40.310057][ T1379] br_add_if (net/bridge/br_if.c:592) [ 40.310059][ T1379] ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751) [ 40.310063][ T1379] ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94) [ 40.310068][ T1379] do_set_master (net/core/rtnetlink.c:3071) [ 40.310072][ T1379] do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1)) [ 40.310075][ T1379] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 40.310078][ T1379] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 40.310080][ T1379] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 40.310082][ T1379] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 40.310086][ T1379] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 40.310088][ T1379] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 40.310090][ T1379] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 40.310092][ T1379] ? kasan_save_stack (mm/kasan/common.c:58) [ 40.310095][ T1379] ? kasan_save_stack (mm/kasan/common.c:57) [ 40.310096][ T1379] ? kasan_save_track (mm/kasan/common.c:78) [ 40.310097][ T1379] ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415) [ 40.310099][ T1379] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 40.310101][ T1379] ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320) [ 40.310104][ T1379] ? ___sys_sendmsg (net/socket.c:2758) [ 40.310108][ T1379] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 40.310110][ T1379] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 40.310113][ T1379] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.310114][ T1379] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 40.310116][ T1379] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.310117][ T1379] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.310119][ T1379] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 40.310121][ T1379] ? __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) [ 40.310122][ T1379] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 40.310124][ T1379] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 40.310127][ T1379] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 40.310129][ T1379] ? nla_get_range_signed (lib/nlattr.c:270) [ 40.310134][ T1379] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.310136][ T1379] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 40.310141][ T1379] rtnl_newlink (net/core/rtnetlink.c:4215) [ 40.310151][ T1379] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 40.310153][ T1379] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 40.310157][ T1379] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 40.310159][ T1379] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 40.310162][ T1379] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 40.310163][ T1379] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 40.310167][ T1379] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 40.310169][ T1379] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 40.310172][ T1379] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 40.310174][ T1379] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 40.310178][ T1379] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 40.310180][ T1379] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 40.310184][ T1379] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 40.310187][ T1379] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 40.310190][ T1379] ? netlink_ack (./include/linux/skbuff.h:2718) [ 40.310196][ T1379] ? 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)) [ 40.310199][ T1379] ? 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)) [ 40.310203][ T1379] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 40.310207][ T1379] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 40.310210][ T1379] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 40.310214][ T1379] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 40.310218][ T1379] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 40.310224][ T1379] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 40.310226][ T1379] ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373) [ 40.310231][ T1379] __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4)) [ 40.310234][ T1379] ____sys_sendmsg (net/socket.c:2713) [ 40.310236][ T1379] ? copy_msghdr_from_user (net/socket.c:2650) [ 40.310238][ T1379] ? sock_write_iter (net/socket.c:1269) [ 40.310240][ T1379] ? move_addr_to_kernel (net/socket.c:258) [ 40.310247][ T1379] ___sys_sendmsg (net/socket.c:2767) [ 40.310250][ T1379] ? copy_msghdr_from_user (net/socket.c:2619) [ 40.310266][ T1379] __sys_sendmsg (net/socket.c:2799) [ 40.310269][ T1379] ? __sys_sendmsg_sock (net/socket.c:2780) [ 40.310275][ T1379] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 40.310278][ T1379] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 40.310281][ T1379] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 40.310284][ T1379] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 40.310286][ T1379] RIP: 0033:0x7f4b9850854e [ 40.310290][ T1379] 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 [ 40.310292][ T1379] RSP: 002b:00007ffd9bf3a280 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 40.310294][ T1379] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f4b9850854e [ 40.310296][ T1379] RDX: 0000000000000000 RSI: 00007ffd9bf3a330 RDI: 0000000000000005 [ 40.310297][ T1379] RBP: 00007ffd9bf3a290 R08: 0000000000000000 R09: 0000000000000000 [ 40.310297][ T1379] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915e1b Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print __alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars