====================================== | [ 9.959689][ T133] softirqs last disabled at (9427): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.959691][ T133] Preemption disabled at: | [ 9.959692][ T133] 0x0 | [ 9.959702][ T133] Tainted: [W]=WARN [ 9.959703][ T133] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.959705][ T133] Call Trace: [ 9.959706][ T133] [ 9.959708][ T133] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.959715][ T133] __might_resched.cold (kernel/sched/core.c:9234) [ 9.959720][ T133] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.959724][ T133] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.959730][ T133] __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)) [ 9.959732][ T133] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.959739][ T133] ? 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) [ 9.959742][ T133] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.959745][ T133] put_chars (drivers/char/virtio_console.c:1176) [ 9.959749][ T133] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.959751][ T133] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 9.959754][ T133] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 9.959758][ T133] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.959763][ T133] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.959766][ T133] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.959768][ T133] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.959772][ T133] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.959776][ T133] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.959778][ T133] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.959782][ T133] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.959787][ T133] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.959791][ T133] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.959793][ T133] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.959797][ T133] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.959802][ T133] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.959804][ T133] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.959809][ T133] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.959812][ T133] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.959814][ T133] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.959816][ T133] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.959820][ T133] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.959822][ T133] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.959825][ T133] vprintk_emit (kernel/printk/printk.c:2479) [ 9.959828][ T133] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.959831][ T133] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.959835][ T133] _printk (kernel/printk/printk.c:2504) [ 9.959838][ T133] ? snapshot_read.cold (user.c:?) [ 9.959841][ T133] ? 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) [ 9.959844][ T133] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.959848][ T133] ? 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) [ 9.959851][ T133] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.959855][ T133] ? exit_notify (kernel/exit.c:780) [ 9.959856][ T133] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.959859][ T133] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.959863][ T133] do_group_exit (kernel/exit.c:1151) [ 9.959866][ T133] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.959868][ T133] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.959870][ T133] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.959874][ T133] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.959878][ T133] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.959880][ T133] RIP: 0033:0x7f9f8a23e1b8 [ 9.959882][ T133] Code: Unable to access opcode bytes at 0x7f9f8a23e18e. Code starting with the faulting instruction =========================================== [ 9.959883][ T133] RSP: 002b:00007fff650ec768 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.959886][ T133] RAX: ffffffffffffffda RBX: 00007f9f8a36ef88 RCX: 00007f9f8a23e1b8 [ 9.959887][ T133] RDX: 00007f9f8a09f848 RSI: fffffffffffffec8 RDI: 0000000000000000 [ 9.959888][ T133] RBP: 00007fff650ec7c0 R08: 0000000000000000 R09: 0000000000000001 [ 9.959889][ T133] R10: 00007fff650ec5e0 R11: 0000000000000246 R12: 0000000000000002 [ 9.959890][ T133] R13: 0000000000000000 R14: 00007f9f8a36d680 R15: 00007f9f8a36efa0 | [ 11.819830][ T187] softirqs last disabled at (285312): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499) | [ 11.819832][ T187] Preemption disabled at: | [ 11.819833][ T187] vprintk_emit (kernel/printk/printk.c:2471) | [ 11.819842][ T187] Tainted: [W]=WARN [ 11.819843][ T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.819845][ T187] Call Trace: [ 11.819847][ T187] [ 11.819849][ T187] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.819855][ T187] ? vprintk_emit (kernel/printk/printk.c:2471) [ 11.819857][ T187] __might_resched.cold (kernel/sched/core.c:9234) [ 11.819862][ T187] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.819866][ T187] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.819872][ T187] __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)) [ 11.819875][ T187] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.819882][ T187] ? 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) [ 11.819885][ T187] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.819889][ T187] put_chars (drivers/char/virtio_console.c:1176) [ 11.819892][ T187] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.819898][ T187] ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928) [ 11.819909][ T187] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.819912][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.819918][ T187] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.819921][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.819927][ T187] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.819931][ T187] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.819936][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.819938][ T187] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.819943][ T187] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.819947][ T187] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.819949][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.819955][ T187] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.819958][ T187] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.819960][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.819962][ T187] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 11.819966][ T187] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.819968][ T187] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.819971][ T187] vprintk_emit (kernel/printk/printk.c:2479) [ 11.819974][ T187] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.819976][ T187] ? write_profile (profile.c:?) [ 11.819979][ T187] ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380) [ 11.819986][ T187] dev_vprintk_emit (drivers/base/core.c:5000) [ 11.819991][ T187] ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13)) [ 11.819996][ T187] ? filter_irq_stacks (kernel/stacktrace.c:402) [ 11.820002][ T187] dev_printk_emit (drivers/base/core.c:5011) [ 11.820004][ T187] ? dev_vprintk_emit (drivers/base/core.c:5001) [ 11.820008][ T187] ? check_prev_add (kernel/locking/lockdep.c:3258 (discriminator 3)) [ 11.820014][ T187] __netdev_printk (net/core/dev.c:13140 (discriminator 4)) [ 11.820020][ T187] netdev_info (net/core/dev.c:13195 (discriminator 3)) [ 11.820023][ T187] ? netdev_notice (net/core/dev.c:13194) [ 11.820025][ T187] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.820029][ T187] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.820031][ T187] ? mark_held_locks (kernel/locking/lockdep.c:4341) [ 11.820035][ T187] ? do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 11.820038][ T187] netif_change_name.cold (net/core/dev.c:1507 (discriminator 3)) [ 11.820041][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.820043][ T187] ? mark_lock_irq (kernel/locking/lockdep.c:154 (discriminator 6) kernel/locking/lockdep.c:150 (discriminator 6) kernel/locking/lockdep.c:202 (discriminator 6) kernel/locking/lockdep.c:4092 (discriminator 6) kernel/locking/lockdep.c:4174 (discriminator 6) kernel/locking/lockdep.c:4310 (discriminator 6)) [ 11.820045][ T187] ? find_held_lock (kernel/locking/lockdep.c:5360) [ 11.820048][ T187] ? netdev_adjacent_rename_links (net/core/dev.c:9598) [ 11.820051][ T187] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.820054][ T187] ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1)) [ 11.820059][ T187] do_setlink.isra.0 (net/core/rtnetlink.c:3246) [ 11.820062][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.820065][ T187] ? rtnl_link_get_size (net/core/rtnetlink.c:747) [ 11.820067][ T187] ? mark_usage (kernel/locking/lockdep.c:4690) [ 11.820069][ T187] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.820072][ T187] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 11.820075][ T187] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.820080][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.820084][ T187] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.820087][ T187] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 11.820090][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.820092][ T187] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.820094][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.820095][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.820097][ T187] ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22)) [ 11.820099][ T187] ? __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) [ 11.820103][ T187] ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1)) [ 11.820105][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.820107][ T187] ? rtnl_setlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:3586) [ 11.820110][ T187] ? mark_usage (kernel/locking/lockdep.c:4690) [ 11.820113][ T187] ? ww_mutex_lock (kernel/locking/mutex.c:934) [ 11.820115][ T187] ? nla_get_range_signed (lib/nlattr.c:270) [ 11.820121][ T187] ? mark_usage (kernel/locking/lockdep.c:4690) [ 11.820125][ T187] ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22)) [ 11.820132][ T187] rtnl_setlink (net/core/rtnetlink.c:3596) [ 11.820136][ T187] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 11.820138][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.820161][ T187] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.820164][ T187] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.820167][ T187] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.820169][ T187] ? mark_usage (kernel/locking/lockdep.c:4690) [ 11.820171][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.820176][ T187] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.820178][ T187] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.820180][ T187] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 11.820182][ T187] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.820186][ T187] ? __rtnl_newlink (net/core/rtnetlink.c:4090 (discriminator 1)) [ 11.820189][ T187] rtnetlink_rcv_msg (net/core/rtnetlink.c:7132) [ 11.820193][ T187] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.820195][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.820200][ T187] ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2)) [ 11.820202][ T187] ? find_held_lock (kernel/locking/lockdep.c:5367) [ 11.820206][ T187] netlink_rcv_skb (net/netlink/af_netlink.c:2556) [ 11.820209][ T187] ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1)) [ 11.820213][ T187] ? netlink_ack (./include/linux/skbuff.h:2718) [ 11.820220][ T187] ? 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)) [ 11.820222][ T187] ? 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)) [ 11.820227][ T187] netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345) [ 11.820231][ T187] ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1)) [ 11.820234][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.820236][ T187] ? do_raw_spin_trylock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:93 kernel/locking/spinlock_debug.c:123) [ 11.820241][ T187] netlink_sendmsg (net/netlink/af_netlink.c:1900) [ 11.820245][ T187] ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7)) [ 11.820249][ T187] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 11.820253][ T187] ? __might_fault (mm/memory.c:7482 (discriminator 5)) [ 11.820257][ T187] __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4)) [ 11.820261][ T187] ? __ia32_sys_getpeername (net/socket.c:2235) [ 11.820272][ T187] ? exc_page_fault (arch/x86/mm/fault.c:1483 arch/x86/mm/fault.c:1536) [ 11.820277][ T187] __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284) [ 11.820279][ T187] ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22)) [ 11.820283][ T187] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488) [ 11.820284][ T187] ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44)) [ 11.820287][ T187] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.820289][ T187] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.820291][ T187] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.820293][ T187] RIP: 0033:0x7fae5615354e [ 11.820298][ T187] 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 [ 11.820300][ T187] RSP: 002b:00007ffe2d69eb60 EFLAGS: 00000202 ORIG_RAX: 000000000000002c [ 11.820302][ T187] RAX: ffffffffffffffda RBX: 000055ab8cd2a2f0 RCX: 00007fae5615354e [ 11.820304][ T187] RDX: 0000000000000030 RSI: 000055ab8cd6cb20 RDI: 000000000000001e [ 11.820305][ T187] RBP: 00007ffe2d69eb70 R08: 00007ffe2d69ebc0 R09: 0000000000000080 [ 11.820305][ T187] R10: 0000000000000000 R11: 0000000000000202 R12: 000055ab8cd6dde0 [ 11.820306][ T187] R13: 00007ffe2d69eca4 R14: 0000000000000000 R15: 0000000000000000 | [ 15.316417][ T187] softirqs last disabled at (325444): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727) | [ 15.316419][ T187] Preemption disabled at: | [ 15.316420][ T187] 0x0 | [ 15.316431][ T187] Tainted: [W]=WARN [ 15.316432][ T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 15.316433][ T187] Call Trace: [ 15.316435][ T187] [ 15.316437][ T187] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 15.316443][ T187] __might_resched.cold (kernel/sched/core.c:9234) [ 15.316448][ T187] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 15.316453][ T187] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 15.316459][ T187] __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)) [ 15.316461][ T187] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.316468][ T187] ? 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) [ 15.316470][ T187] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 15.316474][ T187] put_chars (drivers/char/virtio_console.c:1176) [ 15.316477][ T187] ? __send_to_port (drivers/char/virtio_console.c:654) [ 15.316479][ T187] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 15.316483][ T187] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 15.316487][ T187] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 15.316491][ T187] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 15.316495][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.316497][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.316501][ T187] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 15.316505][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.316507][ T187] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.316512][ T187] console_emit_next_record (kernel/printk/printk.c:3183) [ 15.316516][ T187] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 15.316520][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.316522][ T187] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 15.316526][ T187] console_flush_one_record (kernel/printk/printk.c:3268) [ 15.316531][ T187] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 15.316533][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.316539][ T187] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 15.316542][ T187] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 15.316544][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.316546][ T187] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 15.316549][ T187] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 15.316551][ T187] ? vprintk_emit (kernel/printk/printk.c:2478) [ 15.316554][ T187] vprintk_emit (kernel/printk/printk.c:2479) [ 15.316557][ T187] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 15.316560][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 15.316564][ T187] _printk (kernel/printk/printk.c:2504) [ 15.316568][ T187] ? snapshot_read.cold (user.c:?) [ 15.316571][ T187] ? 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) [ 15.316574][ T187] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 15.316578][ T187] ? 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) [ 15.316581][ T187] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 15.316585][ T187] ? exit_notify (kernel/exit.c:780) [ 15.316586][ T187] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 15.316589][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 15.316593][ T187] do_group_exit (kernel/exit.c:1151) [ 15.316596][ T187] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 15.316598][ T187] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 15.316600][ T187] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 15.316604][ T187] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 15.316608][ T187] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 15.316610][ T187] RIP: 0033:0x7fae561a41b8 [ 15.316612][ T187] Code: Unable to access opcode bytes at 0x7fae561a418e. Code starting with the faulting instruction =========================================== [ 15.316613][ T187] RSP: 002b:00007ffe2d69f0b8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 15.316616][ T187] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fae561a41b8 [ 15.316617][ T187] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 15.316618][ T187] RBP: 00007ffe2d69f240 R08: 000055ab8cd34318 R09: 0000000000000000 [ 15.316619][ T187] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 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 __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print