====================================== | [ 38.694864][ T1048] softirqs last disabled at (60837): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 38.694866][ T1048] Preemption disabled at: | [ 38.694867][ T1048] 0x0 | [ 38.694877][ T1048] Tainted: [W]=WARN [ 38.694878][ T1048] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 38.694880][ T1048] Call Trace: [ 38.694882][ T1048] [ 38.694883][ T1048] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 38.694890][ T1048] __might_resched.cold (kernel/sched/core.c:9234) [ 38.694895][ T1048] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 38.694899][ T1048] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 38.694903][ T1048] __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)) [ 38.694905][ T1048] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 38.694912][ T1048] ? 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) [ 38.694914][ T1048] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 38.694918][ T1048] put_chars (drivers/char/virtio_console.c:1176) [ 38.694921][ T1048] ? __send_to_port (drivers/char/virtio_console.c:654) [ 38.694922][ T1048] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 38.694925][ T1048] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 38.694931][ T1048] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 38.694938][ T1048] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 38.694941][ T1048] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.694943][ T1048] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 38.694947][ T1048] console_emit_next_record (kernel/printk/printk.c:3183) [ 38.694951][ T1048] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 38.694953][ T1048] ? 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)) [ 38.694956][ T1048] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.694957][ T1048] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 38.694961][ T1048] console_flush_one_record (kernel/printk/printk.c:3268) [ 38.694965][ T1048] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 38.694967][ T1048] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 38.694972][ T1048] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 38.694975][ T1048] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 38.694977][ T1048] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.694979][ T1048] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 38.694982][ T1048] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 38.694984][ T1048] ? vprintk_emit (kernel/printk/printk.c:2478) [ 38.694987][ T1048] vprintk_emit (kernel/printk/printk.c:2479) [ 38.694990][ T1048] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 38.694992][ T1048] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 38.694996][ T1048] _printk (kernel/printk/printk.c:2504) [ 38.695000][ T1048] ? snapshot_read.cold (user.c:?) [ 38.695002][ T1048] ? 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) [ 38.695005][ T1048] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 38.695009][ T1048] ? 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) [ 38.695012][ T1048] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 38.695015][ T1048] ? exit_notify (kernel/exit.c:780) [ 38.695017][ T1048] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 38.695019][ T1048] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 38.695023][ T1048] do_group_exit (kernel/exit.c:1151) [ 38.695026][ T1048] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 38.695027][ T1048] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 38.695030][ T1048] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 38.695034][ T1048] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 38.695037][ T1048] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 38.695039][ T1048] RIP: 0033:0x7f57e49221b8 [ 38.695042][ T1048] Code: Unable to access opcode bytes at 0x7f57e492218e. Code starting with the faulting instruction =========================================== [ 38.695043][ T1048] RSP: 002b:00007ffcafb368f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000e7 [ 38.695045][ T1048] RAX: ffffffffffffffda RBX: 00007f57e4829000 RCX: 00007f57e49221b8 [ 38.695046][ T1048] RDX: 0000000000000003 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 38.695047][ T1048] RBP: 00007ffcafb36914 R08: 0000000000000000 R09: 0000000000000000 [ 38.695048][ T1048] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000042fba0 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print