====================================== | [ 9.561848][ T178] softirqs last disabled at (29103): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.561850][ T178] Preemption disabled at: | [ 9.561850][ T178] 0x0 | [ 9.561860][ T178] Tainted: [W]=WARN [ 9.561861][ T178] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.561863][ T178] Call Trace: [ 9.561865][ T178] [ 9.561866][ T178] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.561872][ T178] __might_resched.cold (kernel/sched/core.c:9234) [ 9.561877][ T178] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.561880][ T178] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.561885][ T178] __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)) [ 9.561887][ T178] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.561894][ T178] ? 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) [ 9.561896][ T178] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.561900][ T178] put_chars (drivers/char/virtio_console.c:1176) [ 9.561903][ T178] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.561905][ T178] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.561909][ T178] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.561915][ T178] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.561922][ T178] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.561924][ T178] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.561927][ T178] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.561930][ T178] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.561934][ T178] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.561935][ T178] ? 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)) [ 9.561938][ T178] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.561940][ T178] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.561944][ T178] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.561948][ T178] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.561949][ T178] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.561954][ T178] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.561956][ T178] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.561958][ T178] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.561960][ T178] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.561963][ T178] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.561965][ T178] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.561968][ T178] vprintk_emit (kernel/printk/printk.c:2479) [ 9.561971][ T178] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.561974][ T178] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.561978][ T178] _printk (kernel/printk/printk.c:2504) [ 9.561981][ T178] ? snapshot_read.cold (user.c:?) [ 9.561984][ T178] ? 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) [ 9.561986][ T178] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.561990][ T178] ? 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) [ 9.561992][ T178] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.561998][ T178] ? exit_notify (kernel/exit.c:780) [ 9.562000][ T178] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.562002][ T178] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.562006][ T178] do_group_exit (kernel/exit.c:1151) [ 9.562009][ T178] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.562011][ T178] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.562013][ T178] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.562017][ T178] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.562020][ T178] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.562022][ T178] RIP: 0033:0x7f2b7940c1b8 [ 9.562024][ T178] Code: Unable to access opcode bytes at 0x7f2b7940c18e. Code starting with the faulting instruction =========================================== [ 9.562025][ T178] RSP: 002b:00007ffcc956a668 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.562027][ T178] RAX: ffffffffffffffda RBX: 00007f2b7953cf88 RCX: 00007f2b7940c1b8 [ 9.562029][ T178] RDX: 00007f2b79156fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.562030][ T178] RBP: 00007ffcc956a6c0 R08: 0000000000000000 R09: 0000000000000050 [ 9.562030][ T178] R10: 00007ffcc956a480 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print