====================================== | [ 8.957864][ T165] softirqs last disabled at (14697): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 8.957867][ T165] Preemption disabled at: | [ 8.957867][ T165] 0x0 | [ 8.957877][ T165] Tainted: [W]=WARN [ 8.957878][ T165] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.957880][ T165] Call Trace: [ 8.957881][ T165] [ 8.957883][ T165] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 8.957889][ T165] __might_resched.cold (kernel/sched/core.c:9234) [ 8.957894][ T165] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 8.957897][ T165] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 8.957902][ T165] __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)) [ 8.957903][ T165] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.957910][ T165] ? 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) [ 8.957913][ T165] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.957916][ T165] put_chars (drivers/char/virtio_console.c:1176) [ 8.957919][ T165] ? __send_to_port (drivers/char/virtio_console.c:654) [ 8.957920][ T165] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 8.957923][ T165] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 8.957928][ T165] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 8.957936][ T165] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 8.957938][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.957940][ T165] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.957944][ T165] console_emit_next_record (kernel/printk/printk.c:3183) [ 8.957951][ T165] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 8.957953][ T165] ? 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)) [ 8.957956][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.957958][ T165] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.957962][ T165] console_flush_one_record (kernel/printk/printk.c:3268) [ 8.957966][ T165] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 8.957968][ T165] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.957973][ T165] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 8.957976][ T165] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 8.957977][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.957979][ T165] ? 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) [ 8.957983][ T165] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 8.957984][ T165] ? vprintk_emit (kernel/printk/printk.c:2478) [ 8.957987][ T165] vprintk_emit (kernel/printk/printk.c:2479) [ 8.957990][ T165] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 8.957993][ T165] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.957996][ T165] _printk (kernel/printk/printk.c:2504) [ 8.958000][ T165] ? snapshot_read.cold (user.c:?) [ 8.958003][ T165] ? 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) [ 8.958005][ T165] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 8.958009][ T165] ? 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) [ 8.958012][ T165] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 8.958015][ T165] ? exit_notify (kernel/exit.c:780) [ 8.958017][ T165] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.958019][ T165] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.958023][ T165] do_group_exit (kernel/exit.c:1151) [ 8.958025][ T165] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 8.958027][ T165] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 8.958030][ T165] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 8.958033][ T165] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 8.958036][ T165] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.958038][ T165] RIP: 0033:0x7f5cffad21b8 [ 8.958040][ T165] Code: Unable to access opcode bytes at 0x7f5cffad218e. Code starting with the faulting instruction =========================================== [ 8.958041][ T165] RSP: 002b:00007fff58074f88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 8.958043][ T165] RAX: ffffffffffffffda RBX: 00007f5cffc02f88 RCX: 00007f5cffad21b8 [ 8.958045][ T165] RDX: 00007f5cffa0fa48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 8.958045][ T165] RBP: 00007fff58074fe0 R08: 0000000000000000 R09: 0000000000001010 [ 8.958046][ T165] R10: 00007fff58074e40 R11: 0000000000000246 R12: 0000000000000002 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print