====================================== | [ 30.909792][ T924] softirqs last disabled at (49597): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 30.909795][ T924] Preemption disabled at: | [ 30.909795][ T924] 0x0 | [ 30.909806][ T924] Tainted: [W]=WARN [ 30.909806][ T924] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 30.909808][ T924] Call Trace: [ 30.909809][ T924] [ 30.909811][ T924] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 30.909818][ T924] __might_resched.cold (kernel/sched/core.c:9234) [ 30.909822][ T924] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 30.909826][ T924] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 30.909830][ T924] __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)) [ 30.909832][ T924] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 30.909839][ T924] ? 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) [ 30.909842][ T924] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 30.909846][ T924] put_chars (drivers/char/virtio_console.c:1176) [ 30.909848][ T924] ? __send_to_port (drivers/char/virtio_console.c:654) [ 30.909849][ T924] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 30.909852][ T924] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 30.909857][ T924] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 30.909865][ T924] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 30.909867][ T924] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.909869][ T924] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.909873][ T924] console_emit_next_record (kernel/printk/printk.c:3183) [ 30.909877][ T924] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 30.909879][ T924] ? 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)) [ 30.909882][ T924] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.909884][ T924] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.909887][ T924] console_flush_one_record (kernel/printk/printk.c:3268) [ 30.909891][ T924] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 30.909893][ T924] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.909898][ T924] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 30.909901][ T924] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 30.909903][ T924] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.909905][ T924] ? 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) [ 30.909908][ T924] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 30.909910][ T924] ? vprintk_emit (kernel/printk/printk.c:2478) [ 30.909913][ T924] vprintk_emit (kernel/printk/printk.c:2479) [ 30.909916][ T924] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 30.909918][ T924] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.909922][ T924] _printk (kernel/printk/printk.c:2504) [ 30.909926][ T924] ? snapshot_read.cold (user.c:?) [ 30.909928][ T924] ? 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) [ 30.909931][ T924] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 30.909935][ T924] ? 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) [ 30.909937][ T924] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 30.909941][ T924] ? exit_notify (kernel/exit.c:780) [ 30.909942][ T924] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 30.909945][ T924] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.909949][ T924] do_group_exit (kernel/exit.c:1151) [ 30.909951][ T924] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 30.909953][ T924] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 30.909956][ T924] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 30.909960][ T924] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 30.909962][ T924] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 30.909964][ T924] RIP: 0033:0x7f56939761b8 [ 30.909966][ T924] Code: Unable to access opcode bytes at 0x7f569397618e. Code starting with the faulting instruction =========================================== [ 30.909968][ T924] RSP: 002b:00007ffcca3f8148 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 30.909970][ T924] RAX: ffffffffffffffda RBX: 00007f5693aa6f88 RCX: 00007f56939761b8 [ 30.909971][ T924] RDX: 00007f56938b3a48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 30.909972][ T924] RBP: 00007ffcca3f81a0 R08: 0000000000000000 R09: 0000000000000020 [ 30.909973][ T924] R10: 00007ffcca3f7fe0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print