====================================== | [ 9.573849][ T186] softirqs last disabled at (65313): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.573852][ T186] Preemption disabled at: | [ 9.573853][ T186] 0x0 | [ 9.573862][ T186] Tainted: [W]=WARN [ 9.573863][ T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.573865][ T186] Call Trace: [ 9.573866][ T186] [ 9.573868][ T186] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.573874][ T186] __might_resched.cold (kernel/sched/core.c:9234) [ 9.573879][ T186] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.573883][ T186] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.573888][ T186] __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)) [ 9.573891][ T186] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.573897][ T186] ? 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) [ 9.573899][ T186] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.573902][ T186] put_chars (drivers/char/virtio_console.c:1176) [ 9.573905][ T186] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.573906][ T186] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.573912][ T186] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.573917][ T186] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.573923][ T186] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.573925][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.573928][ T186] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.573932][ T186] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.573936][ T186] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.573937][ T186] ? 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)) [ 9.573940][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.573943][ T186] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.573947][ T186] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.573951][ T186] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.573953][ T186] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.573958][ T186] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.573961][ T186] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.573962][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.573965][ T186] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.573968][ T186] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.573970][ T186] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.573973][ T186] vprintk_emit (kernel/printk/printk.c:2479) [ 9.573977][ T186] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.573981][ T186] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.573984][ T186] _printk (kernel/printk/printk.c:2504) [ 9.573988][ T186] ? snapshot_read.cold (user.c:?) [ 9.573991][ T186] ? 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) [ 9.573993][ T186] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.573997][ T186] ? 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) [ 9.574000][ T186] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.574004][ T186] ? exit_notify (kernel/exit.c:780) [ 9.574006][ T186] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.574009][ T186] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.574013][ T186] do_group_exit (kernel/exit.c:1151) [ 9.574016][ T186] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.574017][ T186] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.574019][ T186] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.574023][ T186] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.574026][ T186] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.574028][ T186] RIP: 0033:0x7fbe897851b8 [ 9.574030][ T186] Code: Unable to access opcode bytes at 0x7fbe8978518e. Code starting with the faulting instruction =========================================== [ 9.574031][ T186] RSP: 002b:00007fffefd59be8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.574034][ T186] RAX: ffffffffffffffda RBX: 00007fbe898b5f88 RCX: 00007fbe897851b8 [ 9.574035][ T186] RDX: 00007fbe894cffc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.574036][ T186] RBP: 00007fffefd59c40 R08: 0000000000000000 R09: 0000000000008010 [ 9.574037][ T186] R10: 00007fffefd59a00 R11: 0000000000000246 R12: 0000000000000001 [ 9.574038][ T186] R13: 0000000000000000 R14: 00007fbe898b4680 R15: 00007fbe898b5fa0 | [ 15.769683][ T256] softirqs last disabled at (21772): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109) bridge | [ 15.769691][ T256] Preemption disabled at: | [ 15.769692][ T256] 0x0 | [ 15.769702][ T256] Tainted: [W]=WARN [ 15.769703][ T256] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.769704][ T256] Call Trace: [ 15.769706][ T256] [ 15.769707][ T256] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 15.769714][ T256] __might_resched.cold (kernel/sched/core.c:9234) [ 15.769719][ T256] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 15.769723][ 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) [ 15.769728][ 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)) [ 15.769731][ T256] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.769736][ 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) [ 15.769739][ T256] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.769742][ T256] put_chars (drivers/char/virtio_console.c:1176) [ 15.769747][ T256] ? __send_to_port (drivers/char/virtio_console.c:654) [ 15.769749][ T256] ? check_prev_add (kernel/locking/lockdep.c:3185) [ 15.769753][ T256] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 15.769756][ T256] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 15.769759][ T256] ? mark_usage (kernel/locking/lockdep.c:4690) [ 15.769761][ T256] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.769762][ T256] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.769766][ T256] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 15.769768][ T256] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.769772][ T256] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.769776][ T256] console_emit_next_record (kernel/printk/printk.c:3183) [ 15.769780][ T256] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 15.769781][ 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)) [ 15.769785][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.769789][ T256] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.769793][ T256] console_flush_one_record (kernel/printk/printk.c:3268) [ 15.769797][ T256] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 15.769799][ T256] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.769804][ T256] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 15.769807][ T256] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 15.769809][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.769811][ T256] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 15.769815][ T256] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 15.769816][ T256] ? vprintk_emit (kernel/printk/printk.c:2478) [ 15.769820][ T256] vprintk_emit (kernel/printk/printk.c:2479) [ 15.769824][ T256] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 15.769826][ T256] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 15.769828][ T256] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 15.769831][ T256] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 15.769835][ T256] _printk (kernel/printk/printk.c:2504) [ 15.769839][ T256] ? snapshot_read.cold (user.c:?) [ 15.769851][ T256] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge [ 15.769862][ T256] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge [ 15.769872][ T256] br_device_event (net/bridge/br.c:111) bridge [ 15.769879][ T256] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1)) [ 15.769883][ T256] ? _sub_I_65535_1+0x4d0/0x4d0 stp [ 15.769889][ T256] notifier_call_chain (kernel/notifier.c:85) [ 15.769895][ T256] __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855) [ 15.769900][ T256] ? netif_change_name (net/core/dev.c:1517) [ 15.769904][ T256] ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1)) [ 15.769907][ T256] ? __kernel_text_address (kernel/extable.c:79) [ 15.769909][ T256] ? write_profile (profile.c:?) [ 15.769912][ T256] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 15.769917][ T256] netif_change_flags (net/core/dev.c:9882) [ 15.769920][ T256] do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1)) [ 15.769924][ T256] ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1)) [ 15.769926][ T256] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 15.769927][ T256] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380) [ 15.769929][ T256] ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2)) [ 15.769933][ T256] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 15.769935][ T256] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 15.769937][ T256] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 15.769940][ T256] ? kasan_save_stack (mm/kasan/common.c:58) [ 15.769943][ T256] ? kasan_save_stack (mm/kasan/common.c:57) [ 15.769944][ T256] ? kasan_save_track (mm/kasan/common.c:78) [ 15.769947][ T256] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.769949][ T256] ? netlink_seq_next (net/netlink/af_netlink.c:2685) [ 15.769952][ T256] ? ___sys_sendmsg (net/socket.c:2757) [ 15.769957][ T256] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.769959][ T256] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 15.769962][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.769964][ T256] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.769966][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.769967][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.769970][ T256] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 15.769974][ 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) [ 15.769975][ T256] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 15.769977][ T256] ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214) [ 15.769981][ T256] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 15.769986][ T256] ? __rtnl_newlink (net/core/rtnetlink.c:4063) [ 15.769992][ T256] rtnl_newlink (net/core/rtnetlink.c:4215) [ 15.769997][ T256] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 15.769999][ T256] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.770004][ T256] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.770006][ T256] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 15.770008][ T256] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 15.770009][ T256] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 15.770013][ T256] ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558) [ 15.770015][ T256] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 15.770019][ T256] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 15.770020][ T256] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.770024][ T256] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 15.770026][ T256] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 15.770030][ T256] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 15.770031][ T256] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 15.770034][ T256] ? netlink_ack (./include/linux/skbuff.h:2718) [ 15.770041][ 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)) [ 15.770042][ 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)) [ 15.770047][ T256] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 15.770050][ T256] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 15.770053][ T256] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.770057][ T256] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 15.770061][ T256] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 15.770065][ T256] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 15.770071][ T256] ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4)) [ 15.770073][ T256] ? copy_msghdr_from_user (net/socket.c:2650) [ 15.770075][ T256] ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399) [ 15.770077][ T256] ? move_addr_to_kernel (net/socket.c:258) [ 15.770084][ T256] ___sys_sendmsg (net/socket.c:2767) [ 15.770087][ T256] ? copy_msghdr_from_user (net/socket.c:2619) [ 15.770104][ T256] __sys_sendmsg (net/socket.c:2799) [ 15.770107][ T256] ? __sys_sendmsg_sock (net/socket.c:2780) [ 15.770113][ T256] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.770117][ T256] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 15.770119][ T256] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 15.770122][ T256] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 15.770125][ T256] RIP: 0033:0x7f34f6ce954e [ 15.770127][ 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 [ 15.770128][ T256] RSP: 002b:00007ffd4ff000b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e [ 15.770131][ T256] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f34f6ce954e [ 15.770133][ T256] RDX: 0000000000000000 RSI: 00007ffd4ff00160 RDI: 0000000000000005 [ 15.770134][ T256] RBP: 00007ffd4ff000c0 R08: 0000000000000000 R09: 0000000000000000 [ 15.770134][ T256] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90e86c Finger prints: br_device_event:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print