====================================== | [ 9.276206][ T168] softirqs last disabled at (27123): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.276209][ T168] Preemption disabled at: | [ 9.276209][ T168] 0x0 | [ 9.276219][ T168] Tainted: [W]=WARN [ 9.276220][ T168] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.276222][ T168] Call Trace: [ 9.276223][ T168] [ 9.276225][ T168] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.276230][ T168] __might_resched.cold (kernel/sched/core.c:9234) [ 9.276235][ T168] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.276238][ T168] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.276243][ T168] __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)) [ 9.276245][ T168] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.276251][ T168] ? 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) [ 9.276254][ T168] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.276258][ T168] put_chars (drivers/char/virtio_console.c:1176) [ 9.276261][ T168] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.276267][ T168] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.276274][ T168] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.276276][ T168] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.276281][ T168] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.276284][ T168] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.276285][ T168] ? 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)) [ 9.276288][ T168] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.276291][ T168] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.276295][ T168] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.276299][ T168] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.276300][ T168] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.276305][ T168] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.276308][ T168] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.276309][ T168] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.276311][ T168] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.276314][ T168] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.276316][ T168] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.276319][ T168] vprintk_emit (kernel/printk/printk.c:2479) [ 9.276322][ T168] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.276325][ T168] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.276329][ T168] _printk (kernel/printk/printk.c:2504) [ 9.276332][ T168] ? snapshot_read.cold (user.c:?) [ 9.276335][ T168] ? 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) [ 9.276337][ T168] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.276341][ T168] ? 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) [ 9.276344][ T168] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.276348][ T168] ? exit_notify (kernel/exit.c:780) [ 9.276349][ T168] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.276352][ T168] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.276355][ T168] do_group_exit (kernel/exit.c:1151) [ 9.276358][ T168] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.276360][ T168] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.276363][ T168] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.276367][ T168] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.276370][ T168] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.276372][ T168] RIP: 0033:0x7fca3a08e1b8 [ 9.276374][ T168] Code: Unable to access opcode bytes at 0x7fca3a08e18e. Code starting with the faulting instruction =========================================== [ 9.276375][ T168] RSP: 002b:00007fffe8c8d108 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.276377][ T168] RAX: ffffffffffffffda RBX: 00007fca3a1bef88 RCX: 00007fca3a08e1b8 [ 9.276379][ T168] RDX: 00007fca39dd8fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.276380][ T168] RBP: 00007fffe8c8d160 R08: 0000000000000000 R09: 0000000000000050 [ 9.276380][ T168] R10: 00007fffe8c8cf20 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print