====================================== | [ 8.881055][ T173] softirqs last disabled at (23057): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 8.881058][ T173] Preemption disabled at: | [ 8.881059][ T173] 0x0 | [ 8.881070][ T173] Tainted: [W]=WARN [ 8.881071][ T173] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.881072][ T173] Call Trace: [ 8.881075][ T173] [ 8.881077][ T173] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 8.881083][ T173] __might_resched.cold (kernel/sched/core.c:9234) [ 8.881087][ T173] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 8.881091][ T173] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 8.881096][ T173] __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)) [ 8.881098][ T173] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.881103][ T173] ? 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) [ 8.881106][ T173] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.881109][ T173] put_chars (drivers/char/virtio_console.c:1176) [ 8.881112][ T173] ? __send_to_port (drivers/char/virtio_console.c:654) [ 8.881113][ T173] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 8.881116][ T173] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 8.881119][ T173] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 8.881123][ T173] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 8.881126][ T173] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.881127][ T173] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.881131][ T173] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 8.881134][ T173] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.881138][ T173] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.881141][ T173] console_emit_next_record (kernel/printk/printk.c:3183) [ 8.881145][ T173] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 8.881149][ T173] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.881151][ T173] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.881155][ T173] console_flush_one_record (kernel/printk/printk.c:3268) [ 8.881159][ T173] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 8.881160][ T173] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.881165][ T173] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 8.881167][ T173] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 8.881169][ T173] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.881171][ T173] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 8.881178][ T173] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 8.881180][ T173] ? vprintk_emit (kernel/printk/printk.c:2478) [ 8.881183][ T173] vprintk_emit (kernel/printk/printk.c:2479) [ 8.881187][ T173] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 8.881190][ T173] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.881193][ T173] _printk (kernel/printk/printk.c:2504) [ 8.881197][ T173] ? snapshot_read.cold (user.c:?) [ 8.881200][ T173] ? 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) [ 8.881202][ T173] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 8.881206][ T173] ? 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) [ 8.881208][ T173] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 8.881211][ T173] ? exit_notify (kernel/exit.c:780) [ 8.881213][ T173] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.881216][ T173] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.881219][ T173] do_group_exit (kernel/exit.c:1151) [ 8.881223][ T173] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 8.881225][ T173] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 8.881228][ T173] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 8.881231][ T173] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 8.881234][ T173] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.881237][ T173] RIP: 0033:0x7fc8212e31b8 [ 8.881239][ T173] Code: Unable to access opcode bytes at 0x7fc8212e318e. Code starting with the faulting instruction =========================================== [ 8.881240][ T173] RSP: 002b:00007fffa59619e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 8.881243][ T173] RAX: ffffffffffffffda RBX: 00007fc821413f88 RCX: 00007fc8212e31b8 [ 8.881244][ T173] RDX: 00007fc821140b48 RSI: fffffffffffffec8 RDI: 0000000000000000 [ 8.881245][ T173] RBP: 00007fffa5961a40 R08: 0000000000000000 R09: 0000000000001010 [ 8.881246][ T173] R10: 00007fffa5961840 R11: 0000000000000246 R12: 0000000000000002 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print