====================================== | [ 8.752216][ T157] softirqs last disabled at (8975): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 8.752218][ T157] Preemption disabled at: | [ 8.752219][ T157] 0x0 | [ 8.752229][ T157] Tainted: [W]=WARN [ 8.752230][ T157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 8.752232][ T157] Call Trace: [ 8.752233][ T157] [ 8.752235][ T157] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 8.752240][ T157] __might_resched.cold (kernel/sched/core.c:9234) [ 8.752245][ T157] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 8.752248][ T157] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 8.752253][ T157] __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)) [ 8.752256][ T157] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.752262][ T157] ? 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) [ 8.752264][ T157] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 8.752268][ T157] put_chars (drivers/char/virtio_console.c:1176) [ 8.752271][ T157] ? __send_to_port (drivers/char/virtio_console.c:654) [ 8.752272][ T157] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 8.752276][ T157] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 8.752282][ T157] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 8.752288][ T157] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 8.752290][ T157] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.752292][ T157] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.752296][ T157] console_emit_next_record (kernel/printk/printk.c:3183) [ 8.752300][ T157] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 8.752301][ T157] ? 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)) [ 8.752304][ T157] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.752306][ T157] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 8.752309][ T157] console_flush_one_record (kernel/printk/printk.c:3268) [ 8.752313][ T157] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 8.752314][ T157] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.752319][ T157] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 8.752322][ T157] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 8.752323][ T157] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.752325][ T157] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 8.752329][ T157] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 8.752331][ T157] ? vprintk_emit (kernel/printk/printk.c:2478) [ 8.752333][ T157] vprintk_emit (kernel/printk/printk.c:2479) [ 8.752336][ T157] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 8.752339][ T157] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 8.752343][ T157] _printk (kernel/printk/printk.c:2504) [ 8.752347][ T157] ? snapshot_read.cold (user.c:?) [ 8.752350][ T157] ? 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) [ 8.752352][ T157] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 8.752356][ T157] ? 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) [ 8.752359][ T157] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 8.752362][ T157] ? exit_notify (kernel/exit.c:780) [ 8.752364][ T157] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 8.752367][ T157] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 8.752371][ T157] do_group_exit (kernel/exit.c:1151) [ 8.752374][ T157] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 8.752376][ T157] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 8.752379][ T157] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 8.752383][ T157] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 8.752385][ T157] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 8.752388][ T157] RIP: 0033:0x7fb3370431b8 [ 8.752390][ T157] Code: Unable to access opcode bytes at 0x7fb33704318e. Code starting with the faulting instruction =========================================== [ 8.752391][ T157] RSP: 002b:00007fff9c7256c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 8.752393][ T157] RAX: ffffffffffffffda RBX: 00007fb337173f88 RCX: 00007fb3370431b8 [ 8.752395][ T157] RDX: 00007fb336f80a48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 8.752396][ T157] RBP: 00007fff9c725720 R08: 0000000000000000 R09: 0000000000001010 [ 8.752396][ T157] R10: 00007fff9c725560 R11: 0000000000000246 R12: 0000000000000002 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print