====================================== | [ 16.159839][ T283] softirqs last disabled at (33883): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 16.159842][ T283] Preemption disabled at: | [ 16.159842][ T283] 0x0 | [ 16.159853][ T283] Tainted: [W]=WARN [ 16.159854][ T283] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.159856][ T283] Call Trace: [ 16.159858][ T283] [ 16.159859][ T283] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 16.159866][ T283] __might_resched.cold (kernel/sched/core.c:9234) [ 16.159870][ T283] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 16.159874][ T283] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 16.159879][ T283] __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)) [ 16.159880][ T283] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.159887][ T283] ? 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) [ 16.159890][ T283] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.159894][ T283] put_chars (drivers/char/virtio_console.c:1176) [ 16.159896][ T283] ? __send_to_port (drivers/char/virtio_console.c:654) [ 16.159897][ T283] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 16.159901][ T283] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 16.159906][ T283] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 16.159914][ T283] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 16.159916][ T283] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.159918][ T283] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.159922][ T283] console_emit_next_record (kernel/printk/printk.c:3183) [ 16.159926][ T283] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 16.159928][ T283] ? 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)) [ 16.159931][ T283] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.159933][ T283] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.159937][ T283] console_flush_one_record (kernel/printk/printk.c:3268) [ 16.159941][ T283] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 16.159943][ T283] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.159948][ T283] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 16.159951][ T283] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 16.159953][ T283] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.159954][ T283] ? 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) [ 16.159958][ T283] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 16.159960][ T283] ? vprintk_emit (kernel/printk/printk.c:2478) [ 16.159962][ T283] vprintk_emit (kernel/printk/printk.c:2479) [ 16.159969][ T283] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 16.159972][ T283] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.159976][ T283] _printk (kernel/printk/printk.c:2504) [ 16.159980][ T283] ? snapshot_read.cold (user.c:?) [ 16.159982][ T283] ? 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) [ 16.159985][ T283] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 16.159989][ T283] ? 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) [ 16.159991][ T283] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 16.159995][ T283] ? exit_notify (kernel/exit.c:780) [ 16.159996][ T283] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 16.159999][ T283] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.160003][ T283] do_group_exit (kernel/exit.c:1151) [ 16.160005][ T283] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 16.160009][ T283] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 16.160012][ T283] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 16.160016][ T283] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 16.160019][ T283] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 16.160021][ T283] RIP: 0033:0x7fc83d4a51b8 [ 16.160023][ T283] Code: Unable to access opcode bytes at 0x7fc83d4a518e. Code starting with the faulting instruction =========================================== [ 16.160024][ T283] RSP: 002b:00007ffe064c6718 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 16.160027][ T283] RAX: ffffffffffffffda RBX: 00007fc83d5d5f88 RCX: 00007fc83d4a51b8 [ 16.160028][ T283] RDX: 00007fc83d1effc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 16.160029][ T283] RBP: 00007ffe064c6770 R08: 0000000000000000 R09: 0000000000008010 [ 16.160030][ T283] R10: 00007ffe064c6530 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print