====================================== | [ 12.184982][ T86] softirqs last disabled at (415685): do_softirq (kernel/softirq.c:546 (discriminator 19) kernel/softirq.c:533 (discriminator 19)) | [ 12.184984][ T86] Preemption disabled at: | [ 12.184985][ T86] 0x0 | [ 12.184996][ T86] Tainted: [W]=WARN [ 12.184997][ T86] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.184999][ T86] Call Trace: [ 12.185000][ T86] [ 12.185002][ T86] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.185008][ T86] __might_resched.cold (kernel/sched/core.c:9234) [ 12.185012][ T86] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.185016][ T86] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.185021][ T86] __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)) [ 12.185024][ T86] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.185031][ T86] ? 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) [ 12.185033][ T86] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.185037][ T86] put_chars (drivers/char/virtio_console.c:1176) [ 12.185040][ T86] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.185042][ T86] ? printk_get_next_message (kernel/printk/printk.c:3072) [ 12.185046][ T86] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 12.185049][ T86] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.185053][ T86] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.185057][ T86] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.185059][ T86] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.185063][ T86] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.185066][ T86] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.185070][ T86] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.185074][ T86] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.185078][ T86] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.185082][ T86] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.185084][ T86] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.185090][ T86] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.185095][ T86] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.185097][ T86] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.185102][ T86] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.185105][ T86] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.185106][ T86] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.185109][ T86] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18)) [ 12.185112][ T86] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.185114][ T86] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.185117][ T86] vprintk_emit (kernel/printk/printk.c:2479) [ 12.185121][ T86] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.185125][ T86] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.185128][ T86] _printk (kernel/printk/printk.c:2504) [ 12.185132][ T86] ? snapshot_read.cold (user.c:?) [ 12.185135][ T86] ? 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) [ 12.185137][ T86] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 12.185141][ T86] ? 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) [ 12.185144][ T86] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 12.185148][ T86] ? exit_notify (kernel/exit.c:780) [ 12.185149][ T86] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.185152][ T86] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.185156][ T86] do_group_exit (kernel/exit.c:1151) [ 12.185159][ T86] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 12.185160][ T86] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 12.185162][ T86] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.185166][ T86] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.185170][ T86] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.185172][ T86] RIP: 0033:0x7f9642f631b8 [ 12.185175][ T86] Code: Unable to access opcode bytes at 0x7f9642f6318e. Code starting with the faulting instruction =========================================== [ 12.185176][ T86] RSP: 002b:00007fff45c14758 EFLAGS: 00000256 ORIG_RAX: 00000000000000e7 [ 12.185178][ T86] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9642f631b8 [ 12.185180][ T86] RDX: 0000000000000000 RSI: fffffffffffffe90 RDI: 0000000000000000 [ 12.185181][ T86] RBP: 00007fff45c148e0 R08: 000055e2f8754e18 R09: 0000000000000000 [ 12.185181][ T86] R10: 0000000000000000 R11: 0000000000000256 R12: 0000000000000000 Finger prints: do_softirq:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print