====================================== | [ 8.606837][ T200] softirqs last disabled at (0): 0x0 | [ 8.606838][ T200] Preemption disabled at: | [ 8.606839][ T200] 0x0 | [ 8.606847][ T200] Tainted: [W]=WARN [ 8.606848][ T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.606850][ T200] Call Trace: [ 8.606852][ T200] [ 8.606853][ T200] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 8.606858][ T200] __might_resched.cold (kernel/sched/core.c:9234) [ 8.606862][ T200] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 8.606864][ T200] ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1)) [ 8.606867][ T200] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.606871][ T200] __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)) [ 8.606874][ T200] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 8.606877][ T200] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.606881][ T200] ? 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) [ 8.606883][ T200] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.606885][ T200] put_chars (drivers/char/virtio_console.c:1176) [ 8.606887][ T200] ? __send_to_port (drivers/char/virtio_console.c:654) [ 8.606889][ T200] ? console_prepend_replay (kernel/printk/printk.c:3005) [ 8.606892][ T200] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 8.606895][ T200] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 8.606897][ T200] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.606898][ T200] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.606901][ T200] console_emit_next_record (kernel/printk/printk.c:3183) [ 8.606903][ T200] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 8.606904][ T200] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.606905][ T200] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.606906][ T200] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.606907][ T200] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.606909][ T200] ? console_flush_one_record (kernel/printk/printk.c:3247) [ 8.606911][ T200] console_flush_one_record (kernel/printk/printk.c:3268) [ 8.606912][ T200] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 8.606914][ T200] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 8.606915][ T200] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.606917][ T200] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 8.606918][ T200] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.606919][ T200] ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22)) [ 8.606921][ T200] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 8.606922][ T200] ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6)) [ 8.606924][ T200] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 8.606926][ T200] ? vprintk_emit (kernel/printk/printk.c:2478) [ 8.606928][ T200] vprintk_emit (kernel/printk/printk.c:2479) [ 8.606929][ T200] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 8.606931][ T200] ? 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) [ 8.606932][ T200] ? _raw_spin_unlock (./include/linux/spinlock_api_smp.h:201 (discriminator 1) kernel/locking/spinlock.c:213 (discriminator 1)) [ 8.606936][ T200] ? __free_frozen_pages (mm/page_alloc.c:2991 (discriminator 2)) [ 8.606939][ T200] _printk (kernel/printk/printk.c:2504) [ 8.606942][ T200] ? snapshot_read.cold (user.c:?) [ 8.606944][ T200] ? 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) [ 8.606946][ T200] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 8.606948][ T200] ? 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) [ 8.606950][ T200] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 8.606952][ T200] ? exit_notify (kernel/exit.c:780) [ 8.606955][ T200] ? posixtimer_sig_unignore.isra.0 (kernel/signal.c:1971 (discriminator 3)) [ 8.606957][ T200] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.606959][ T200] do_group_exit (kernel/exit.c:1151) [ 8.606961][ T200] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 8.606962][ T200] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 8.606965][ T200] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 8.606968][ T200] ? irq_exit_rcu (kernel/softirq.c:786) [ 8.606970][ T200] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.606972][ T200] RIP: 0033:0x479678 [ 8.606975][ T200] Code: Unable to access opcode bytes at 0x47964e. Code starting with the faulting instruction =========================================== [ 8.606976][ T200] RSP: 002b:00007fff93a611a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 8.606979][ T200] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000479678 [ 8.606981][ T200] RDX: 00000000138bc708 RSI: fffffffffffffff0 RDI: 0000000000000000 [ 8.606982][ T200] RBP: 00007fff93a61200 R08: 0000000000000000 R09: 00000000138bd3e0 [ 8.606982][ T200] R10: 0000000000000110 R11: 0000000000000246 R12: 00007fff93a61338 Finger prints: __kmalloc_noprof:put_chars:hvc_console_print:console_emit_next_record:console_flush_one_record