====================================== | [ 9.281685][ T202] softirqs last disabled at (48145): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.281687][ T202] Preemption disabled at: | [ 9.281688][ T202] 0x0 | [ 9.281698][ T202] Tainted: [W]=WARN [ 9.281699][ T202] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.281701][ T202] Call Trace: [ 9.281702][ T202] [ 9.281704][ T202] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.281711][ T202] __might_resched.cold (kernel/sched/core.c:9234) [ 9.281715][ T202] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.281719][ T202] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.281724][ T202] __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)) [ 9.281726][ T202] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.281732][ T202] ? 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) [ 9.281735][ T202] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.281739][ T202] put_chars (drivers/char/virtio_console.c:1176) [ 9.281741][ T202] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.281742][ T202] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.281746][ T202] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.281752][ T202] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.281759][ T202] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.281761][ T202] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.281763][ T202] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.281767][ T202] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.281771][ T202] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.281773][ T202] ? 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)) [ 9.281776][ T202] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.281778][ T202] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.281782][ T202] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.281786][ T202] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.281788][ T202] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.281793][ T202] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.281796][ T202] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.281797][ T202] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.281799][ T202] ? 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) [ 9.281803][ T202] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.281804][ T202] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.281807][ T202] vprintk_emit (kernel/printk/printk.c:2479) [ 9.281810][ T202] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.281813][ T202] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.281817][ T202] _printk (kernel/printk/printk.c:2504) [ 9.281820][ T202] ? snapshot_read.cold (user.c:?) [ 9.281823][ T202] ? 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) [ 9.281825][ T202] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.281829][ T202] ? 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) [ 9.281832][ T202] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.281836][ T202] ? exit_notify (kernel/exit.c:780) [ 9.281837][ T202] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.281840][ T202] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.281843][ T202] do_group_exit (kernel/exit.c:1151) [ 9.281846][ T202] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.281848][ T202] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.281850][ T202] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.281860][ T202] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.281863][ T202] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.281865][ T202] RIP: 0033:0x7fba0054a1b8 [ 9.281868][ T202] Code: Unable to access opcode bytes at 0x7fba0054a18e. Code starting with the faulting instruction =========================================== [ 9.281869][ T202] RSP: 002b:00007fffc8da4408 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.281871][ T202] RAX: ffffffffffffffda RBX: 00007fba0067af88 RCX: 00007fba0054a1b8 [ 9.281872][ T202] RDX: 00007fba00294fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.281873][ T202] RBP: 00007fffc8da4460 R08: 0000000000000000 R09: 0000000000008010 [ 9.281874][ T202] R10: 00007fffc8da4220 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print