====================================== | [ 30.629696][ T1089] softirqs last disabled at (38297): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 30.629699][ T1089] Preemption disabled at: | [ 30.629699][ T1089] 0x0 | [ 30.629709][ T1089] Tainted: [W]=WARN [ 30.629710][ T1089] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 30.629711][ T1089] Call Trace: [ 30.629713][ T1089] [ 30.629714][ T1089] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 30.629721][ T1089] __might_resched.cold (kernel/sched/core.c:9234) [ 30.629725][ T1089] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 30.629729][ T1089] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 30.629733][ T1089] __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)) [ 30.629735][ T1089] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 30.629742][ T1089] ? 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) [ 30.629745][ T1089] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 30.629748][ T1089] put_chars (drivers/char/virtio_console.c:1176) [ 30.629751][ T1089] ? __send_to_port (drivers/char/virtio_console.c:654) [ 30.629752][ T1089] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 30.629755][ T1089] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 30.629761][ T1089] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 30.629768][ T1089] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 30.629771][ T1089] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.629773][ T1089] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.629777][ T1089] console_emit_next_record (kernel/printk/printk.c:3183) [ 30.629780][ T1089] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 30.629782][ T1089] ? 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)) [ 30.629785][ T1089] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.629787][ T1089] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.629791][ T1089] console_flush_one_record (kernel/printk/printk.c:3268) [ 30.629795][ T1089] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 30.629797][ T1089] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.629802][ T1089] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 30.629805][ T1089] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 30.629807][ T1089] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.629809][ T1089] ? 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) [ 30.629812][ T1089] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 30.629814][ T1089] ? vprintk_emit (kernel/printk/printk.c:2478) [ 30.629817][ T1089] vprintk_emit (kernel/printk/printk.c:2479) [ 30.629820][ T1089] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 30.629823][ T1089] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.629826][ T1089] _printk (kernel/printk/printk.c:2504) [ 30.629830][ T1089] ? snapshot_read.cold (user.c:?) [ 30.629833][ T1089] ? 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) [ 30.629835][ T1089] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 30.629839][ T1089] ? 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) [ 30.629842][ T1089] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 30.629846][ T1089] ? exit_notify (kernel/exit.c:780) [ 30.629847][ T1089] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 30.629854][ T1089] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.629858][ T1089] do_group_exit (kernel/exit.c:1151) [ 30.629861][ T1089] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 30.629863][ T1089] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 30.629865][ T1089] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 30.629869][ T1089] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 30.629872][ T1089] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 30.629874][ T1089] RIP: 0033:0x7f81603be1b8 [ 30.629876][ T1089] Code: Unable to access opcode bytes at 0x7f81603be18e. Code starting with the faulting instruction =========================================== [ 30.629877][ T1089] RSP: 002b:00007ffff8cb7f48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 30.629880][ T1089] RAX: ffffffffffffffda RBX: 00007f81604eef88 RCX: 00007f81603be1b8 [ 30.629881][ T1089] RDX: 00007f8160108fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 30.629882][ T1089] RBP: 00007ffff8cb7fa0 R08: 0000000000000000 R09: 0000000000000000 [ 30.629883][ T1089] R10: 00007ffff8cb7d60 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print