====================================== | [ 62.351373][ T508] softirqs last disabled at (34663): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 62.351376][ T508] Preemption disabled at: | [ 62.351377][ T508] 0x0 | [ 62.351387][ T508] Tainted: [W]=WARN [ 62.351388][ T508] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 62.351389][ T508] Call Trace: [ 62.351391][ T508] [ 62.351392][ T508] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 62.351399][ T508] __might_resched.cold (kernel/sched/core.c:9234) [ 62.351404][ T508] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 62.351408][ T508] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 62.351413][ T508] __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)) [ 62.351415][ T508] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 62.351421][ T508] ? 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) [ 62.351423][ T508] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 62.351427][ T508] put_chars (drivers/char/virtio_console.c:1176) [ 62.351430][ T508] ? __send_to_port (drivers/char/virtio_console.c:654) [ 62.351431][ T508] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 62.351434][ T508] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 62.351437][ T508] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 62.351442][ T508] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 62.351444][ T508] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 62.351446][ T508] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 62.351450][ T508] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 62.351453][ T508] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 62.351457][ T508] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 62.351460][ T508] console_emit_next_record (kernel/printk/printk.c:3183) [ 62.351464][ T508] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 62.351469][ T508] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 62.351471][ T508] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 62.351475][ T508] console_flush_one_record (kernel/printk/printk.c:3268) [ 62.351479][ T508] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 62.351480][ T508] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 62.351486][ T508] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 62.351488][ T508] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 62.351490][ T508] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 62.351492][ T508] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 62.351496][ T508] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 62.351497][ T508] ? vprintk_emit (kernel/printk/printk.c:2478) [ 62.351500][ T508] vprintk_emit (kernel/printk/printk.c:2479) [ 62.351504][ T508] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 62.351508][ T508] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 62.351511][ T508] _printk (kernel/printk/printk.c:2504) [ 62.351515][ T508] ? snapshot_read.cold (user.c:?) [ 62.351518][ T508] ? 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) [ 62.351521][ T508] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 62.351524][ T508] ? 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) [ 62.351527][ T508] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 62.351531][ T508] ? exit_notify (kernel/exit.c:780) [ 62.351533][ T508] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 62.351535][ T508] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 62.351539][ T508] do_group_exit (kernel/exit.c:1151) [ 62.351543][ T508] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 62.351546][ T508] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 62.351548][ T508] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 62.351551][ T508] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 62.351554][ T508] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 62.351557][ T508] RIP: 0033:0x7ff7cf9c71b8 [ 62.351559][ T508] Code: Unable to access opcode bytes at 0x7ff7cf9c718e. Code starting with the faulting instruction =========================================== [ 62.351560][ T508] RSP: 002b:00007ffc6ba78dd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 62.351563][ T508] RAX: ffffffffffffffda RBX: 00007ff7cfaf7f88 RCX: 00007ff7cf9c71b8 [ 62.351564][ T508] RDX: 00007ff7cf711fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 62.351565][ T508] RBP: 00007ffc6ba78e30 R08: 0000000000000000 R09: 0000000000000050 [ 62.351566][ T508] R10: 00007ffc6ba78bf0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print