====================================== | [ 9.735520][ T204] softirqs last disabled at (18155): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.735523][ T204] Preemption disabled at: | [ 9.735524][ T204] 0x0 | [ 9.735533][ T204] Tainted: [W]=WARN [ 9.735534][ T204] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.735536][ T204] Call Trace: [ 9.735537][ T204] [ 9.735539][ T204] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.735544][ T204] __might_resched.cold (kernel/sched/core.c:9234) [ 9.735548][ T204] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.735551][ T204] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.735557][ T204] __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)) [ 9.735559][ T204] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.735566][ T204] ? 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) [ 9.735568][ T204] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.735572][ T204] put_chars (drivers/char/virtio_console.c:1176) [ 9.735574][ T204] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.735576][ T204] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.735580][ T204] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.735585][ T204] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.735591][ T204] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.735594][ T204] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.735596][ T204] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.735600][ T204] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.735603][ T204] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.735604][ T204] ? 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)) [ 9.735607][ T204] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.735609][ T204] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.735612][ T204] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.735616][ T204] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.735617][ T204] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.735626][ T204] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.735628][ T204] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.735629][ T204] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.735631][ T204] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.735635][ T204] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.735636][ T204] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.735639][ T204] vprintk_emit (kernel/printk/printk.c:2479) [ 9.735642][ T204] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.735645][ T204] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.735649][ T204] _printk (kernel/printk/printk.c:2504) [ 9.735652][ T204] ? snapshot_read.cold (user.c:?) [ 9.735655][ T204] ? 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) [ 9.735658][ T204] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.735662][ T204] ? 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) [ 9.735664][ T204] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.735668][ T204] ? exit_notify (kernel/exit.c:780) [ 9.735669][ T204] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.735672][ T204] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.735676][ T204] do_group_exit (kernel/exit.c:1151) [ 9.735678][ T204] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.735680][ T204] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.735683][ T204] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.735687][ T204] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.735690][ T204] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.735692][ T204] RIP: 0033:0x7fcad1c151b8 [ 9.735694][ T204] Code: Unable to access opcode bytes at 0x7fcad1c1518e. Code starting with the faulting instruction =========================================== [ 9.735695][ T204] RSP: 002b:00007ffd8dd9e6e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.735697][ T204] RAX: ffffffffffffffda RBX: 00007fcad1d45f88 RCX: 00007fcad1c151b8 [ 9.735698][ T204] RDX: 00007fcad195ffc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.735699][ T204] RBP: 00007ffd8dd9e740 R08: 0000000000000000 R09: 0000000000008010 [ 9.735700][ T204] R10: 00007ffd8dd9e500 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print