====================================== | [ 30.393358][ T825] softirqs last disabled at (641775): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 30.393360][ T825] Preemption disabled at: | [ 30.393361][ T825] 0x0 | [ 30.393371][ T825] Tainted: [W]=WARN [ 30.393372][ T825] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 30.393374][ T825] Call Trace: [ 30.393376][ T825] [ 30.393377][ T825] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 30.393383][ T825] __might_resched.cold (kernel/sched/core.c:9234) [ 30.393389][ T825] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 30.393392][ T825] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 30.393398][ T825] __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)) [ 30.393400][ T825] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 30.393406][ T825] ? 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) [ 30.393409][ T825] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 30.393412][ T825] put_chars (drivers/char/virtio_console.c:1176) [ 30.393416][ T825] ? __send_to_port (drivers/char/virtio_console.c:654) [ 30.393418][ T825] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 30.393422][ T825] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 30.393427][ T825] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 30.393435][ T825] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 30.393437][ T825] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.393440][ T825] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.393444][ T825] console_emit_next_record (kernel/printk/printk.c:3183) [ 30.393447][ T825] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 30.393449][ T825] ? 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)) [ 30.393452][ T825] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.393454][ T825] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 30.393458][ T825] console_flush_one_record (kernel/printk/printk.c:3268) [ 30.393462][ T825] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 30.393464][ T825] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.393469][ T825] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 30.393471][ T825] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 30.393473][ T825] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.393475][ T825] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 30.393479][ T825] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 30.393480][ T825] ? vprintk_emit (kernel/printk/printk.c:2478) [ 30.393483][ T825] vprintk_emit (kernel/printk/printk.c:2479) [ 30.393487][ T825] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 30.393490][ T825] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 30.393494][ T825] _printk (kernel/printk/printk.c:2504) [ 30.393498][ T825] ? snapshot_read.cold (user.c:?) [ 30.393500][ T825] ? 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) [ 30.393503][ T825] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 30.393507][ T825] ? 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) [ 30.393509][ T825] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 30.393513][ T825] ? exit_notify (kernel/exit.c:780) [ 30.393515][ T825] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 30.393517][ T825] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 30.393521][ T825] do_group_exit (kernel/exit.c:1151) [ 30.393525][ T825] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 30.393527][ T825] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 30.393529][ T825] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 30.393533][ T825] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 30.393536][ T825] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 30.393538][ T825] RIP: 0033:0x7f46583821b8 [ 30.393541][ T825] Code: Unable to access opcode bytes at 0x7f465838218e. Code starting with the faulting instruction =========================================== [ 30.393542][ T825] RSP: 002b:00007fffa7f069a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 30.393544][ T825] RAX: ffffffffffffffda RBX: 00007f46584b2f88 RCX: 00007f46583821b8 [ 30.393546][ T825] RDX: 00007f46582bfa48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 30.393547][ T825] RBP: 00007fffa7f06a00 R08: 0000000000000000 R09: 0000000000000000 [ 30.393548][ T825] R10: 00007fffa7f06840 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print