====================================== | [ 8.953778][ T164] softirqs last disabled at (94465): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 8.953780][ T164] Preemption disabled at: | [ 8.953781][ T164] 0x0 | [ 8.953791][ T164] Tainted: [W]=WARN [ 8.953792][ T164] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.953793][ T164] Call Trace: [ 8.953795][ T164] [ 8.953796][ T164] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 8.953802][ T164] __might_resched.cold (kernel/sched/core.c:9234) [ 8.953806][ T164] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 8.953810][ T164] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 8.953815][ T164] __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)) [ 8.953817][ T164] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.953823][ T164] ? 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) [ 8.953825][ T164] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.953828][ T164] put_chars (drivers/char/virtio_console.c:1176) [ 8.953831][ T164] ? __send_to_port (drivers/char/virtio_console.c:654) [ 8.953833][ T164] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 8.953837][ T164] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 8.953842][ T164] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 8.953849][ T164] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 8.953851][ T164] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.953853][ T164] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.953857][ T164] console_emit_next_record (kernel/printk/printk.c:3183) [ 8.953861][ T164] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 8.953862][ T164] ? 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)) [ 8.953865][ T164] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.953868][ T164] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.953871][ T164] console_flush_one_record (kernel/printk/printk.c:3268) [ 8.953875][ T164] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 8.953877][ T164] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.953882][ T164] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 8.953885][ T164] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 8.953886][ T164] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.953889][ T164] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 8.953892][ T164] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 8.953894][ T164] ? vprintk_emit (kernel/printk/printk.c:2478) [ 8.953897][ T164] vprintk_emit (kernel/printk/printk.c:2479) [ 8.953900][ T164] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 8.953904][ T164] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.953907][ T164] _printk (kernel/printk/printk.c:2504) [ 8.953911][ T164] ? snapshot_read.cold (user.c:?) [ 8.953913][ T164] ? 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) [ 8.953916][ T164] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 8.953919][ T164] ? 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) [ 8.953922][ T164] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 8.953925][ T164] ? exit_notify (kernel/exit.c:780) [ 8.953927][ T164] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.953929][ T164] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.953933][ T164] do_group_exit (kernel/exit.c:1151) [ 8.953936][ T164] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 8.953938][ T164] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 8.953940][ T164] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 8.953944][ T164] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 8.953947][ T164] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.953949][ T164] RIP: 0033:0x7fb5468831b8 [ 8.953951][ T164] Code: Unable to access opcode bytes at 0x7fb54688318e. Code starting with the faulting instruction =========================================== [ 8.953952][ T164] RSP: 002b:00007ffc33546fc8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 8.953954][ T164] RAX: ffffffffffffffda RBX: 00007fb5469b3f88 RCX: 00007fb5468831b8 [ 8.953956][ T164] RDX: 00007fb546671cc8 RSI: ffffffffffffffa8 RDI: 0000000000000000 [ 8.953956][ T164] RBP: 00007ffc33547020 R08: 0000000000000000 R09: 0000000000000050 [ 8.953957][ T164] R10: 00007ffc33546e20 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print