====================================== | [ 12.720305][ T213] softirqs last disabled at (26775): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 12.720307][ T213] Preemption disabled at: | [ 12.720308][ T213] 0x0 | [ 12.720318][ T213] Tainted: [W]=WARN [ 12.720319][ T213] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.720320][ T213] Call Trace: [ 12.720322][ T213] [ 12.720323][ T213] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.720329][ T213] __might_resched.cold (kernel/sched/core.c:9234) [ 12.720333][ T213] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.720336][ T213] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.720342][ T213] __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)) [ 12.720344][ T213] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.720350][ T213] ? 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) [ 12.720353][ T213] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.720356][ T213] put_chars (drivers/char/virtio_console.c:1176) [ 12.720360][ T213] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.720361][ T213] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.720373][ T213] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.720378][ T213] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.720384][ T213] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.720387][ T213] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.720389][ T213] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.720393][ T213] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.720396][ T213] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.720398][ T213] ? 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)) [ 12.720400][ T213] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.720402][ T213] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.720406][ T213] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.720409][ T213] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.720411][ T213] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.720416][ T213] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.720418][ T213] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.720419][ T213] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.720421][ T213] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 12.720425][ T213] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.720427][ T213] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.720430][ T213] vprintk_emit (kernel/printk/printk.c:2479) [ 12.720433][ T213] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.720436][ T213] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.720439][ T213] _printk (kernel/printk/printk.c:2504) [ 12.720443][ T213] ? snapshot_read.cold (user.c:?) [ 12.720446][ T213] ? 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) [ 12.720449][ T213] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 12.720452][ T213] ? 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) [ 12.720455][ T213] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 12.720459][ T213] ? exit_notify (kernel/exit.c:780) [ 12.720460][ T213] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.720463][ T213] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.720467][ T213] do_group_exit (kernel/exit.c:1151) [ 12.720470][ T213] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 12.720472][ T213] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 12.720474][ T213] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.720478][ T213] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.720481][ T213] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.720483][ T213] RIP: 0033:0x7f3c7ca331b8 [ 12.720485][ T213] Code: Unable to access opcode bytes at 0x7f3c7ca3318e. Code starting with the faulting instruction =========================================== [ 12.720486][ T213] RSP: 002b:00007ffe1960dfc8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 12.720489][ T213] RAX: ffffffffffffffda RBX: 00007f3c7cb63f88 RCX: 00007f3c7ca331b8 [ 12.720490][ T213] RDX: 00007f3c7c77dfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 12.720491][ T213] RBP: 00007ffe1960e020 R08: 0000000000000000 R09: 0000000000008010 [ 12.720492][ T213] R10: 00007ffe1960dde0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print