====================================== | [ 9.787059][ T206] softirqs last disabled at (28927): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.787062][ T206] Preemption disabled at: | [ 9.787062][ T206] 0x0 | [ 9.787073][ T206] Tainted: [W]=WARN [ 9.787074][ T206] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.787075][ T206] Call Trace: [ 9.787077][ T206] [ 9.787078][ T206] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.787085][ T206] __might_resched.cold (kernel/sched/core.c:9234) [ 9.787089][ T206] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.787093][ T206] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.787097][ T206] __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)) [ 9.787099][ T206] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.787106][ T206] ? 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) [ 9.787108][ T206] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.787112][ T206] put_chars (drivers/char/virtio_console.c:1176) [ 9.787114][ T206] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.787115][ T206] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.787119][ T206] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.787124][ T206] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.787132][ T206] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.787134][ T206] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.787136][ T206] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.787140][ T206] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.787144][ T206] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.787146][ T206] ? 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)) [ 9.787149][ T206] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.787151][ T206] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.787155][ T206] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.787159][ T206] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.787160][ T206] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.787166][ T206] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.787168][ T206] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.787170][ T206] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.787172][ T206] ? 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) [ 9.787175][ T206] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.787177][ T206] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.787180][ T206] vprintk_emit (kernel/printk/printk.c:2479) [ 9.787183][ T206] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.787185][ T206] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.787189][ T206] _printk (kernel/printk/printk.c:2504) [ 9.787193][ T206] ? snapshot_read.cold (user.c:?) [ 9.787195][ T206] ? 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) [ 9.787198][ T206] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.787202][ T206] ? 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) [ 9.787204][ T206] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.787208][ T206] ? exit_notify (kernel/exit.c:780) [ 9.787209][ T206] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.787212][ T206] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.787215][ T206] do_group_exit (kernel/exit.c:1151) [ 9.787218][ T206] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.787220][ T206] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.787222][ T206] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.787226][ T206] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.787229][ T206] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.787231][ T206] RIP: 0033:0x7f045ebb81b8 [ 9.787233][ T206] Code: Unable to access opcode bytes at 0x7f045ebb818e. Code starting with the faulting instruction =========================================== [ 9.787234][ T206] RSP: 002b:00007ffd39d5adf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.787237][ T206] RAX: ffffffffffffffda RBX: 00007f045ece8f88 RCX: 00007f045ebb81b8 [ 9.787238][ T206] RDX: 00007f045e902fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.787239][ T206] RBP: 00007ffd39d5ae50 R08: 0000000000000000 R09: 0000000000008010 [ 9.787240][ T206] R10: 00007ffd39d5ac10 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print