====================================== | [ 24.407993][ T385] softirqs last disabled at (838405): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 24.407996][ T385] Preemption disabled at: | [ 24.407997][ T385] 0x0 | [ 24.408010][ T385] Tainted: [W]=WARN [ 24.408011][ T385] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 24.408013][ T385] Call Trace: [ 24.408015][ T385] [ 24.408017][ T385] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 24.408025][ T385] __might_resched.cold (kernel/sched/core.c:9234) [ 24.408031][ T385] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 24.408037][ T385] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 24.408043][ T385] __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)) [ 24.408046][ T385] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 24.408056][ T385] ? 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) [ 24.408059][ T385] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 24.408065][ T385] put_chars (drivers/char/virtio_console.c:1176) [ 24.408068][ T385] ? __send_to_port (drivers/char/virtio_console.c:654) [ 24.408070][ T385] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 24.408075][ T385] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 24.408084][ T385] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 24.408095][ T385] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 24.408099][ T385] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.408102][ T385] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.408109][ T385] console_emit_next_record (kernel/printk/printk.c:3183) [ 24.408115][ T385] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 24.408117][ T385] ? 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)) [ 24.408122][ T385] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.408125][ T385] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.408131][ T385] console_flush_one_record (kernel/printk/printk.c:3268) [ 24.408138][ T385] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 24.408141][ T385] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.408150][ T385] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 24.408154][ T385] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 24.408156][ T385] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.408159][ T385] ? 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) [ 24.408165][ T385] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 24.408167][ T385] ? vprintk_emit (kernel/printk/printk.c:2478) [ 24.408172][ T385] vprintk_emit (kernel/printk/printk.c:2479) [ 24.408177][ T385] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 24.408179][ T385] ? 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) [ 24.408184][ T385] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.408190][ T385] _printk (kernel/printk/printk.c:2504) [ 24.408195][ T385] ? snapshot_read.cold (user.c:?) [ 24.408199][ T385] ? 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) [ 24.408203][ T385] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 24.408209][ T385] ? 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) [ 24.408213][ T385] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 24.408219][ T385] ? exit_notify (kernel/exit.c:780) [ 24.408221][ T385] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 24.408225][ T385] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.408231][ T385] do_group_exit (kernel/exit.c:1151) [ 24.408235][ T385] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 24.408238][ T385] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 24.408241][ T385] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 24.408246][ T385] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 24.408251][ T385] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 24.408254][ T385] RIP: 0033:0x7fb6a87ab1b8 [ 24.408257][ T385] Code: Unable to access opcode bytes at 0x7fb6a87ab18e. Code starting with the faulting instruction =========================================== [ 24.408258][ T385] RSP: 002b:00007ffeab3781b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 24.408261][ T385] RAX: ffffffffffffffda RBX: 00007fb6a88dbf88 RCX: 00007fb6a87ab1b8 [ 24.408263][ T385] RDX: 00007fb6a86ea408 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 24.408265][ T385] RBP: 00007ffeab378210 R08: 0000000000000000 R09: 0000000000000000 [ 24.408266][ T385] R10: 00007ffeab378030 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print