====================================== | [ 9.808932][ T200] softirqs last disabled at (37805): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.808935][ T200] Preemption disabled at: | [ 9.808935][ T200] 0x0 | [ 9.808946][ T200] Tainted: [W]=WARN [ 9.808947][ T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.808949][ T200] Call Trace: [ 9.808950][ T200] [ 9.808952][ T200] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.808958][ T200] __might_resched.cold (kernel/sched/core.c:9234) [ 9.808963][ T200] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.808967][ T200] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.808971][ T200] __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)) [ 9.808973][ T200] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.808980][ T200] ? 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) [ 9.808983][ T200] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.808986][ T200] put_chars (drivers/char/virtio_console.c:1176) [ 9.808989][ T200] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.808990][ T200] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.808994][ T200] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.808999][ T200] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.809007][ T200] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.809010][ T200] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.809011][ T200] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.809015][ T200] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.809019][ T200] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.809021][ T200] ? 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)) [ 9.809025][ T200] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.809026][ T200] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.809030][ T200] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.809034][ T200] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.809036][ T200] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.809041][ T200] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.809044][ T200] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.809046][ T200] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.809048][ T200] ? 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) [ 9.809051][ T200] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.809053][ T200] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.809056][ T200] vprintk_emit (kernel/printk/printk.c:2479) [ 9.809059][ T200] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.809062][ T200] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.809066][ T200] _printk (kernel/printk/printk.c:2504) [ 9.809070][ T200] ? snapshot_read.cold (user.c:?) [ 9.809072][ T200] ? 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) [ 9.809075][ T200] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.809079][ T200] ? 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) [ 9.809082][ T200] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.809085][ T200] ? exit_notify (kernel/exit.c:780) [ 9.809087][ T200] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.809089][ T200] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.809093][ T200] do_group_exit (kernel/exit.c:1151) [ 9.809096][ T200] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.809098][ T200] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.809100][ T200] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.809104][ T200] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.809107][ T200] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.809110][ T200] RIP: 0033:0x7f1e5f9f91b8 [ 9.809112][ T200] Code: Unable to access opcode bytes at 0x7f1e5f9f918e. Code starting with the faulting instruction =========================================== [ 9.809113][ T200] RSP: 002b:00007ffea6b7bd88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.809115][ T200] RAX: ffffffffffffffda RBX: 00007f1e5fb29f88 RCX: 00007f1e5f9f91b8 [ 9.809117][ T200] RDX: 00007f1e5f743fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.809118][ T200] RBP: 00007ffea6b7bde0 R08: 0000000000000000 R09: 0000000000000000 [ 9.809118][ T200] R10: 00007ffea6b7bba0 R11: 0000000000000246 R12: 0000000000000001 [ 9.809119][ T200] R13: 0000000000000000 R14: 00007f1e5fb28680 R15: 00007f1e5fb29fa0 | [ 24.451136][ T382] softirqs last disabled at (827147): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 24.451139][ T382] Preemption disabled at: | [ 24.451140][ T382] 0x0 | [ 24.451152][ T382] Tainted: [W]=WARN [ 24.451153][ T382] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 24.451155][ T382] Call Trace: [ 24.451157][ T382] [ 24.451159][ T382] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 24.451167][ T382] __might_resched.cold (kernel/sched/core.c:9234) [ 24.451173][ T382] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 24.451178][ T382] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 24.451184][ T382] __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)) [ 24.451187][ T382] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 24.451196][ T382] ? 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) [ 24.451199][ T382] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 24.451204][ T382] put_chars (drivers/char/virtio_console.c:1176) [ 24.451208][ T382] ? __send_to_port (drivers/char/virtio_console.c:654) [ 24.451209][ T382] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 24.451214][ T382] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 24.451223][ T382] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 24.451233][ T382] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 24.451237][ T382] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.451240][ T382] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.451248][ T382] console_emit_next_record (kernel/printk/printk.c:3183) [ 24.451254][ T382] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 24.451256][ T382] ? 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)) [ 24.451261][ T382] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.451264][ T382] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 24.451270][ T382] console_flush_one_record (kernel/printk/printk.c:3268) [ 24.451276][ T382] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 24.451278][ T382] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.451286][ T382] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 24.451290][ T382] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 24.451292][ T382] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.451295][ T382] ? 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) [ 24.451301][ T382] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 24.451303][ T382] ? vprintk_emit (kernel/printk/printk.c:2478) [ 24.451307][ T382] vprintk_emit (kernel/printk/printk.c:2479) [ 24.451312][ T382] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 24.451313][ T382] ? 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) [ 24.451318][ T382] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 24.451323][ T382] _printk (kernel/printk/printk.c:2504) [ 24.451328][ T382] ? snapshot_read.cold (user.c:?) [ 24.451332][ T382] ? 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) [ 24.451335][ T382] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 24.451341][ T382] ? 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) [ 24.451345][ T382] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 24.451350][ T382] ? exit_notify (kernel/exit.c:780) [ 24.451351][ T382] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 24.451355][ T382] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 24.451361][ T382] do_group_exit (kernel/exit.c:1151) [ 24.451365][ T382] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 24.451368][ T382] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 24.451371][ T382] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 24.451376][ T382] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 24.451379][ T382] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 24.451382][ T382] RIP: 0033:0x7f39b3ef31b8 [ 24.451385][ T382] Code: Unable to access opcode bytes at 0x7f39b3ef318e. Code starting with the faulting instruction =========================================== [ 24.451387][ T382] RSP: 002b:00007ffc3fd07ca8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 24.451390][ T382] RAX: ffffffffffffffda RBX: 00007f39b4023f88 RCX: 00007f39b3ef31b8 [ 24.451391][ T382] RDX: 00007f39b3e32408 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 24.451393][ T382] RBP: 00007ffc3fd07d00 R08: 0000000000000000 R09: 0000000000000000 [ 24.451394][ T382] R10: 00007ffc3fd07b20 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print