====================================== | [ 9.706497][ T207] softirqs last disabled at (35767): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.706500][ T207] Preemption disabled at: | [ 9.706500][ T207] 0x0 | [ 9.706511][ T207] Tainted: [W]=WARN [ 9.706512][ T207] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.706513][ T207] Call Trace: [ 9.706515][ T207] [ 9.706517][ T207] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.706523][ T207] __might_resched.cold (kernel/sched/core.c:9234) [ 9.706528][ T207] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.706532][ T207] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.706537][ T207] __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)) [ 9.706539][ T207] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.706546][ T207] ? 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) [ 9.706549][ T207] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.706553][ T207] put_chars (drivers/char/virtio_console.c:1176) [ 9.706556][ T207] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.706557][ T207] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.706561][ T207] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.706567][ T207] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.706575][ T207] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.706578][ T207] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.706580][ T207] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.706584][ T207] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.706589][ T207] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.706591][ T207] ? 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)) [ 9.706594][ T207] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.706596][ T207] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.706600][ T207] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.706605][ T207] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.706607][ T207] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.706613][ T207] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.706616][ T207] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.706618][ T207] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.706619][ T207] ? 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) [ 9.706624][ T207] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.706625][ T207] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.706628][ T207] vprintk_emit (kernel/printk/printk.c:2479) [ 9.706632][ T207] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.706635][ T207] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.706639][ T207] _printk (kernel/printk/printk.c:2504) [ 9.706643][ T207] ? snapshot_read.cold (user.c:?) [ 9.706646][ T207] ? 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) [ 9.706649][ T207] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.706653][ T207] ? 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) [ 9.706656][ T207] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.706660][ T207] ? exit_notify (kernel/exit.c:780) [ 9.706661][ T207] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.706664][ T207] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.706668][ T207] do_group_exit (kernel/exit.c:1151) [ 9.706672][ T207] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.706674][ T207] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.706676][ T207] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.706680][ T207] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.706684][ T207] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.706686][ T207] RIP: 0033:0x7fb0df3501b8 [ 9.706688][ T207] Code: Unable to access opcode bytes at 0x7fb0df35018e. Code starting with the faulting instruction =========================================== [ 9.706689][ T207] RSP: 002b:00007fff0c921fe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.706693][ T207] RAX: ffffffffffffffda RBX: 00007fb0df480f88 RCX: 00007fb0df3501b8 [ 9.706695][ T207] RDX: 00007fb0df09afc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.706696][ T207] RBP: 00007fff0c922040 R08: 0000000000000000 R09: 0000000000008010 [ 9.706697][ T207] R10: 00007fff0c921e00 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print