====================================== | [ 9.677059][ T196] softirqs last disabled at (21401): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.677061][ T196] Preemption disabled at: | [ 9.677062][ T196] 0x0 | [ 9.677072][ T196] Tainted: [W]=WARN [ 9.677073][ T196] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.677075][ T196] Call Trace: [ 9.677077][ T196] [ 9.677078][ T196] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.677085][ T196] __might_resched.cold (kernel/sched/core.c:9234) [ 9.677089][ T196] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.677093][ T196] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.677098][ T196] __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)) [ 9.677100][ T196] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.677107][ T196] ? 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) [ 9.677109][ T196] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.677113][ T196] put_chars (drivers/char/virtio_console.c:1176) [ 9.677115][ T196] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.677117][ T196] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.677120][ T196] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.677126][ T196] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.677133][ T196] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.677136][ T196] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.677138][ T196] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.677142][ T196] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.677146][ T196] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.677148][ T196] ? 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)) [ 9.677151][ T196] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.677153][ T196] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.677157][ T196] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.677161][ T196] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.677163][ T196] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.677168][ T196] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.677171][ T196] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.677173][ T196] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.677175][ T196] ? 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) [ 9.677178][ T196] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.677180][ T196] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.677183][ T196] vprintk_emit (kernel/printk/printk.c:2479) [ 9.677186][ T196] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.677189][ T196] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.677193][ T196] _printk (kernel/printk/printk.c:2504) [ 9.677197][ T196] ? snapshot_read.cold (user.c:?) [ 9.677199][ T196] ? 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) [ 9.677202][ T196] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.677206][ T196] ? 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) [ 9.677209][ T196] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.677213][ T196] ? exit_notify (kernel/exit.c:780) [ 9.677214][ T196] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.677217][ T196] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.677220][ T196] do_group_exit (kernel/exit.c:1151) [ 9.677223][ T196] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.677225][ T196] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.677228][ T196] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.677232][ T196] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.677234][ T196] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.677237][ T196] RIP: 0033:0x7f5d7aa3d1b8 [ 9.677239][ T196] Code: Unable to access opcode bytes at 0x7f5d7aa3d18e. Code starting with the faulting instruction =========================================== [ 9.677240][ T196] RSP: 002b:00007ffeae956fe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.677242][ T196] RAX: ffffffffffffffda RBX: 00007f5d7ab6df88 RCX: 00007f5d7aa3d1b8 [ 9.677244][ T196] RDX: 00007f5d7a787fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.677245][ T196] RBP: 00007ffeae957040 R08: 0000000000000000 R09: 0000000000000050 [ 9.677245][ T196] R10: 00007ffeae956e00 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print