====================================== | [ 9.197779][ T176] softirqs last disabled at (24997): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.197782][ T176] Preemption disabled at: | [ 9.197783][ T176] 0x0 | [ 9.197793][ T176] Tainted: [W]=WARN [ 9.197794][ T176] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.197796][ T176] Call Trace: [ 9.197797][ T176] [ 9.197799][ T176] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.197804][ T176] __might_resched.cold (kernel/sched/core.c:9234) [ 9.197808][ T176] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.197812][ T176] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.197817][ T176] __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)) [ 9.197819][ T176] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.197825][ T176] ? 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) [ 9.197828][ T176] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.197831][ T176] put_chars (drivers/char/virtio_console.c:1176) [ 9.197834][ T176] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.197840][ T176] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.197847][ T176] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.197850][ T176] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.197854][ T176] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.197857][ T176] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.197859][ T176] ? 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)) [ 9.197861][ T176] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.197865][ T176] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.197868][ T176] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.197872][ T176] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.197873][ T176] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.197878][ T176] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.197880][ T176] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.197882][ T176] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.197883][ T176] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.197887][ T176] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.197889][ T176] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.197892][ T176] vprintk_emit (kernel/printk/printk.c:2479) [ 9.197895][ T176] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.197898][ T176] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.197902][ T176] _printk (kernel/printk/printk.c:2504) [ 9.197905][ T176] ? snapshot_read.cold (user.c:?) [ 9.197908][ T176] ? 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) [ 9.197910][ T176] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.197914][ T176] ? 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) [ 9.197917][ T176] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.197921][ T176] ? exit_notify (kernel/exit.c:780) [ 9.197922][ T176] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.197925][ T176] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.197928][ T176] do_group_exit (kernel/exit.c:1151) [ 9.197931][ T176] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.197933][ T176] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.197936][ T176] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.197939][ T176] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.197942][ T176] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.197944][ T176] RIP: 0033:0x7f9d3ff891b8 [ 9.197946][ T176] Code: Unable to access opcode bytes at 0x7f9d3ff8918e. Code starting with the faulting instruction =========================================== [ 9.197947][ T176] RSP: 002b:00007ffdf3aa5a78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.197950][ T176] RAX: ffffffffffffffda RBX: 00007f9d400b9f88 RCX: 00007f9d3ff891b8 [ 9.197951][ T176] RDX: 00007f9d3fcd3fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.197952][ T176] RBP: 00007ffdf3aa5ad0 R08: 0000000000000000 R09: 0000000000000050 [ 9.197953][ T176] R10: 00007ffdf3aa5890 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print