====================================== | [ 8.664357][ T138] softirqs last disabled at (75301): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 8.664359][ T138] Preemption disabled at: | [ 8.664360][ T138] 0x0 | [ 8.664376][ T138] Tainted: [W]=WARN [ 8.664377][ T138] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.664379][ T138] Call Trace: [ 8.664380][ T138] [ 8.664382][ T138] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 8.664387][ T138] __might_resched.cold (kernel/sched/core.c:9234) [ 8.664391][ T138] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 8.664395][ T138] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 8.664400][ T138] __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)) [ 8.664402][ T138] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.664408][ T138] ? 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) [ 8.664411][ T138] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.664414][ T138] put_chars (drivers/char/virtio_console.c:1176) [ 8.664417][ T138] ? __send_to_port (drivers/char/virtio_console.c:654) [ 8.664424][ T138] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 8.664431][ T138] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 8.664433][ T138] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.664438][ T138] console_emit_next_record (kernel/printk/printk.c:3183) [ 8.664441][ T138] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 8.664442][ T138] ? 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)) [ 8.664445][ T138] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.664448][ T138] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.664452][ T138] console_flush_one_record (kernel/printk/printk.c:3268) [ 8.664456][ T138] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 8.664457][ T138] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.664463][ T138] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 8.664465][ T138] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 8.664466][ T138] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.664468][ T138] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 8.664472][ T138] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 8.664477][ T138] ? vprintk_emit (kernel/printk/printk.c:2478) [ 8.664480][ T138] vprintk_emit (kernel/printk/printk.c:2479) [ 8.664483][ T138] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 8.664486][ T138] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.664490][ T138] _printk (kernel/printk/printk.c:2504) [ 8.664493][ T138] ? snapshot_read.cold (user.c:?) [ 8.664496][ T138] ? 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) [ 8.664499][ T138] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 8.664502][ T138] ? 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) [ 8.664505][ T138] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 8.664509][ T138] ? exit_notify (kernel/exit.c:780) [ 8.664510][ T138] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.664513][ T138] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.664517][ T138] do_group_exit (kernel/exit.c:1151) [ 8.664520][ T138] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 8.664522][ T138] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 8.664525][ T138] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 8.664528][ T138] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 8.664531][ T138] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.664533][ T138] RIP: 0033:0x7f6d1b90b1b8 [ 8.664536][ T138] Code: Unable to access opcode bytes at 0x7f6d1b90b18e. Code starting with the faulting instruction =========================================== [ 8.664537][ T138] RSP: 002b:00007ffc6fcb8668 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 8.664539][ T138] RAX: ffffffffffffffda RBX: 00007f6d1ba3bf88 RCX: 00007f6d1b90b1b8 [ 8.664540][ T138] RDX: 00007f6d1a946b08 RSI: ffffffffffffff98 RDI: 0000000000000000 [ 8.664541][ T138] RBP: 00007ffc6fcb86c0 R08: 0000000000000000 R09: 00000000000000a0 [ 8.664542][ T138] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000b Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print