====================================== | [ 12.306608][ T84] softirqs last disabled at (386067): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 12.306610][ T84] Preemption disabled at: | [ 12.306611][ T84] 0x0 | [ 12.306621][ T84] Tainted: [W]=WARN [ 12.306622][ T84] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.306623][ T84] Call Trace: [ 12.306625][ T84] [ 12.306627][ T84] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.306633][ T84] __might_resched.cold (kernel/sched/core.c:9234) [ 12.306637][ T84] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.306641][ T84] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.306646][ T84] __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)) [ 12.306649][ T84] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.306656][ T84] ? 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) [ 12.306658][ T84] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.306662][ T84] put_chars (drivers/char/virtio_console.c:1176) [ 12.306665][ T84] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.306667][ T84] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 12.306671][ T84] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.306674][ T84] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.306678][ T84] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.306682][ T84] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.306683][ T84] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.306688][ T84] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.306692][ T84] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.306695][ T84] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.306699][ T84] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.306703][ T84] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.306707][ T84] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.306710][ T84] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.306714][ T84] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.306718][ T84] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.306720][ T84] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.306725][ T84] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.306728][ T84] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.306730][ T84] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.306732][ T84] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18)) [ 12.306736][ T84] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.306738][ T84] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.306741][ T84] vprintk_emit (kernel/printk/printk.c:2479) [ 12.306745][ T84] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.306753][ T84] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.306757][ T84] _printk (kernel/printk/printk.c:2504) [ 12.306760][ T84] ? snapshot_read.cold (user.c:?) [ 12.306763][ T84] ? 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) [ 12.306766][ T84] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 12.306770][ T84] ? 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) [ 12.306772][ T84] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 12.306776][ T84] ? exit_notify (kernel/exit.c:780) [ 12.306777][ T84] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.306780][ T84] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.306784][ T84] do_group_exit (kernel/exit.c:1151) [ 12.306787][ T84] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 12.306789][ T84] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 12.306791][ T84] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.306795][ T84] ? irq_exit_rcu (kernel/softirq.c:786) [ 12.306797][ T84] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.306800][ T84] RIP: 0033:0x7f8176d941b8 [ 12.306802][ T84] Code: Unable to access opcode bytes at 0x7f8176d9418e. Code starting with the faulting instruction =========================================== [ 12.306803][ T84] RSP: 002b:00007ffe722d57b8 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 12.306806][ T84] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8176d941b8 [ 12.306807][ T84] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 12.306808][ T84] RBP: 00007ffe722d5940 R08: 0000562d3b030978 R09: 0000000000000000 [ 12.306809][ T84] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print