====================================== | [ 27.657730][ T702] softirqs last disabled at (30745): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 27.657732][ T702] Preemption disabled at: | [ 27.657733][ T702] 0x0 | [ 27.657743][ T702] Tainted: [W]=WARN [ 27.657744][ T702] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 27.657746][ T702] Call Trace: [ 27.657747][ T702] [ 27.657749][ T702] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 27.657755][ T702] __might_resched.cold (kernel/sched/core.c:9234) [ 27.657759][ T702] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 27.657764][ T702] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 27.657768][ T702] __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)) [ 27.657771][ T702] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 27.657777][ T702] ? 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) [ 27.657779][ T702] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 27.657783][ T702] put_chars (drivers/char/virtio_console.c:1176) [ 27.657786][ T702] ? __send_to_port (drivers/char/virtio_console.c:654) [ 27.657788][ T702] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 27.657793][ T702] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 27.657798][ T702] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 27.657805][ T702] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 27.657808][ T702] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.657810][ T702] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 27.657813][ T702] console_emit_next_record (kernel/printk/printk.c:3183) [ 27.657817][ T702] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 27.657819][ T702] ? 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)) [ 27.657822][ T702] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.657824][ T702] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 27.657827][ T702] console_flush_one_record (kernel/printk/printk.c:3268) [ 27.657831][ T702] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 27.657833][ T702] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 27.657837][ T702] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 27.657840][ T702] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 27.657842][ T702] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.657844][ T702] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 27.657847][ T702] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 27.657848][ T702] ? vprintk_emit (kernel/printk/printk.c:2478) [ 27.657851][ T702] vprintk_emit (kernel/printk/printk.c:2479) [ 27.657855][ T702] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 27.657858][ T702] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 27.657861][ T702] _printk (kernel/printk/printk.c:2504) [ 27.657865][ T702] ? snapshot_read.cold (user.c:?) [ 27.657868][ T702] ? 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) [ 27.657870][ T702] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 27.657874][ T702] ? 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) [ 27.657876][ T702] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 27.657880][ T702] ? exit_notify (kernel/exit.c:780) [ 27.657882][ T702] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 27.657884][ T702] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 27.657888][ T702] do_group_exit (kernel/exit.c:1151) [ 27.657891][ T702] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 27.657893][ T702] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 27.657895][ T702] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 27.657899][ T702] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 27.657902][ T702] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 27.657904][ T702] RIP: 0033:0x7feb82a7b1b8 [ 27.657907][ T702] Code: Unable to access opcode bytes at 0x7feb82a7b18e. Code starting with the faulting instruction =========================================== [ 27.657908][ T702] RSP: 002b:00007ffce05b8218 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 27.657910][ T702] RAX: ffffffffffffffda RBX: 00007feb82babf88 RCX: 00007feb82a7b1b8 [ 27.657912][ T702] RDX: 00007feb829b8a48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 27.657913][ T702] RBP: 00007ffce05b8270 R08: 0000000000000000 R09: 0000000000000000 [ 27.657913][ T702] R10: 00007ffce05b80b0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print