====================================== | [ 16.357985][ T344] softirqs last disabled at (37201): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 16.357988][ T344] Preemption disabled at: | [ 16.357988][ T344] 0x0 | [ 16.357998][ T344] Tainted: [W]=WARN [ 16.357999][ T344] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 16.358001][ T344] Call Trace: [ 16.358002][ T344] [ 16.358004][ T344] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 16.358009][ T344] __might_resched.cold (kernel/sched/core.c:9234) [ 16.358014][ T344] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 16.358017][ T344] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 16.358021][ T344] __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)) [ 16.358024][ T344] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.358029][ T344] ? 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) [ 16.358032][ T344] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 16.358035][ T344] put_chars (drivers/char/virtio_console.c:1176) [ 16.358038][ T344] ? __send_to_port (drivers/char/virtio_console.c:654) [ 16.358044][ T344] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 16.358051][ T344] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 16.358053][ T344] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.358058][ T344] console_emit_next_record (kernel/printk/printk.c:3183) [ 16.358061][ T344] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 16.358063][ T344] ? 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)) [ 16.358065][ T344] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.358068][ T344] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 16.358072][ T344] console_flush_one_record (kernel/printk/printk.c:3268) [ 16.358076][ T344] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 16.358077][ T344] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.358082][ T344] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 16.358085][ T344] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 16.358086][ T344] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.358088][ T344] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 16.358092][ T344] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 16.358093][ T344] ? vprintk_emit (kernel/printk/printk.c:2478) [ 16.358096][ T344] vprintk_emit (kernel/printk/printk.c:2479) [ 16.358099][ T344] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 16.358102][ T344] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 16.358106][ T344] _printk (kernel/printk/printk.c:2504) [ 16.358109][ T344] ? snapshot_read.cold (user.c:?) [ 16.358112][ T344] ? 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) [ 16.358115][ T344] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 16.358119][ T344] ? 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) [ 16.358122][ T344] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 16.358125][ T344] ? exit_notify (kernel/exit.c:780) [ 16.358127][ T344] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 16.358129][ T344] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 16.358133][ T344] do_group_exit (kernel/exit.c:1151) [ 16.358136][ T344] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 16.358138][ T344] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 16.358141][ T344] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 16.358144][ T344] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 16.358147][ T344] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 16.358149][ T344] RIP: 0033:0x7f291686b1b8 [ 16.358151][ T344] Code: Unable to access opcode bytes at 0x7f291686b18e. Code starting with the faulting instruction =========================================== [ 16.358152][ T344] RSP: 002b:00007fff95a31ee8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 16.358155][ T344] RAX: ffffffffffffffda RBX: 00007f291699bf88 RCX: 00007f291686b1b8 [ 16.358156][ T344] RDX: 00007f29167a2748 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 16.358157][ T344] RBP: 00007fff95a31f40 R08: 0000000000000000 R09: 0000000000000020 [ 16.358158][ T344] R10: 00007fff95a31d60 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print