====================================== | [ 22.207674][ T216] softirqs last disabled at (51699): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 22.207676][ T216] Preemption disabled at: | [ 22.207677][ T216] 0x0 | [ 22.207686][ T216] Tainted: [W]=WARN [ 22.207687][ T216] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 22.207689][ T216] Call Trace: [ 22.207690][ T216] [ 22.207692][ T216] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 22.207698][ T216] __might_resched.cold (kernel/sched/core.c:9234) [ 22.207702][ T216] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 22.207706][ T216] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 22.207710][ T216] __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)) [ 22.207712][ T216] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 22.207719][ T216] ? 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) [ 22.207721][ T216] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 22.207725][ T216] put_chars (drivers/char/virtio_console.c:1176) [ 22.207727][ T216] ? __send_to_port (drivers/char/virtio_console.c:654) [ 22.207728][ T216] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 22.207732][ T216] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 22.207737][ T216] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 22.207745][ T216] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 22.207747][ T216] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.207749][ T216] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 22.207753][ T216] console_emit_next_record (kernel/printk/printk.c:3183) [ 22.207757][ T216] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 22.207759][ T216] ? 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)) [ 22.207762][ T216] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.207763][ T216] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 22.207767][ T216] console_flush_one_record (kernel/printk/printk.c:3268) [ 22.207771][ T216] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 22.207773][ T216] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.207778][ T216] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 22.207781][ T216] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 22.207783][ T216] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.207784][ T216] ? 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) [ 22.207788][ T216] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 22.207790][ T216] ? vprintk_emit (kernel/printk/printk.c:2478) [ 22.207792][ T216] vprintk_emit (kernel/printk/printk.c:2479) [ 22.207795][ T216] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 22.207798][ T216] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 22.207802][ T216] _printk (kernel/printk/printk.c:2504) [ 22.207806][ T216] ? snapshot_read.cold (user.c:?) [ 22.207808][ T216] ? 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) [ 22.207811][ T216] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 22.207815][ T216] ? 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) [ 22.207817][ T216] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 22.207821][ T216] ? exit_notify (kernel/exit.c:780) [ 22.207822][ T216] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 22.207825][ T216] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 22.207828][ T216] do_group_exit (kernel/exit.c:1151) [ 22.207831][ T216] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 22.207833][ T216] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 22.207835][ T216] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 22.207839][ T216] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 22.207842][ T216] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 22.207844][ T216] RIP: 0033:0x7f3ab5dc31b8 [ 22.207846][ T216] Code: Unable to access opcode bytes at 0x7f3ab5dc318e. Code starting with the faulting instruction =========================================== [ 22.207847][ T216] RSP: 002b:00007ffd8f284378 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 22.207849][ T216] RAX: ffffffffffffffda RBX: 00007f3ab5ef3f88 RCX: 00007f3ab5dc31b8 [ 22.207851][ T216] RDX: 00007f3ab5cfea88 RSI: ffffffffffffffa8 RDI: 0000000000000000 [ 22.207852][ T216] RBP: 00007ffd8f2843d0 R08: 0000000000000000 R09: 0000000000000050 [ 22.207852][ T216] R10: 00007ffd8f2841d0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print