====================================== | [ 10.031978][ T176] softirqs last disabled at (27145): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 10.031980][ T176] Preemption disabled at: | [ 10.031981][ T176] 0x0 | [ 10.031991][ T176] Tainted: [W]=WARN [ 10.031992][ T176] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.031994][ T176] Call Trace: [ 10.031996][ T176] [ 10.031997][ T176] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.032004][ T176] __might_resched.cold (kernel/sched/core.c:9234) [ 10.032008][ T176] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.032012][ T176] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.032018][ T176] __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)) [ 10.032020][ T176] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.032026][ T176] ? 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) [ 10.032029][ T176] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.032032][ T176] put_chars (drivers/char/virtio_console.c:1176) [ 10.032035][ T176] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.032036][ T176] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.032042][ T176] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.032047][ T176] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.032053][ T176] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.032056][ T176] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.032058][ T176] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.032062][ T176] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.032066][ T176] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.032068][ T176] ? 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)) [ 10.032071][ T176] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.032073][ T176] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.032077][ T176] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.032081][ T176] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.032083][ T176] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.032088][ T176] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.032091][ T176] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.032092][ T176] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.032095][ T176] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 10.032098][ T176] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.032100][ T176] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.032103][ T176] vprintk_emit (kernel/printk/printk.c:2479) [ 10.032107][ T176] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.032111][ T176] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.032114][ T176] _printk (kernel/printk/printk.c:2504) [ 10.032118][ T176] ? snapshot_read.cold (user.c:?) [ 10.032120][ T176] ? 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) [ 10.032123][ T176] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.032127][ T176] ? 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) [ 10.032129][ T176] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 10.032133][ T176] ? exit_notify (kernel/exit.c:780) [ 10.032135][ T176] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.032137][ T176] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.032141][ T176] do_group_exit (kernel/exit.c:1151) [ 10.032144][ T176] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 10.032146][ T176] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 10.032149][ T176] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.032153][ T176] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.032156][ T176] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.032158][ T176] RIP: 0033:0x7f88471db1b8 [ 10.032160][ T176] Code: Unable to access opcode bytes at 0x7f88471db18e. Code starting with the faulting instruction =========================================== [ 10.032162][ T176] RSP: 002b:00007ffdaea93d48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.032164][ T176] RAX: ffffffffffffffda RBX: 00007f884730bf88 RCX: 00007f88471db1b8 [ 10.032165][ T176] RDX: 00007f8846f25fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.032166][ T176] RBP: 00007ffdaea93da0 R08: 0000000000000000 R09: 0000000000000050 [ 10.032167][ T176] R10: 00007ffdaea93b60 R11: 0000000000000246 R12: 0000000000000001 [ 10.032168][ T176] R13: 0000000000000000 R14: 00007f884730a680 R15: 00007f884730bfa0 | [ 18.384698][ T241] softirqs last disabled at (1524784): fpu__clear_user_states (./include/linux/bottom_half.h:20 (discriminator 2) ./arch/x86/include/asm/fpu/api.h:69 (discriminator 2) arch/x86/kernel/fpu/core.c:835 (discriminator 2)) | [ 18.384700][ T241] Preemption disabled at: | [ 18.384701][ T241] 0x0 | [ 18.384711][ T241] Tainted: [W]=WARN [ 18.384712][ T241] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 18.384714][ T241] Call Trace: [ 18.384716][ T241] [ 18.384717][ T241] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 18.384723][ T241] __might_resched.cold (kernel/sched/core.c:9234) [ 18.384728][ T241] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 18.384732][ T241] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 18.384737][ T241] __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)) [ 18.384739][ T241] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 18.384745][ T241] ? 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) [ 18.384748][ T241] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 18.384751][ T241] put_chars (drivers/char/virtio_console.c:1176) [ 18.384753][ T241] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 18.384755][ T241] ? __send_to_port (drivers/char/virtio_console.c:654) [ 18.384758][ T241] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 18.384763][ T241] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 18.384765][ T241] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 18.384769][ T241] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 18.384772][ T241] ? mark_usage (kernel/locking/lockdep.c:4690) [ 18.384774][ T241] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.384776][ T241] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.384779][ T241] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 18.384781][ T241] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 18.384785][ T241] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.384787][ T241] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 18.384791][ T241] console_emit_next_record (kernel/printk/printk.c:3183) [ 18.384795][ T241] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 18.384797][ T241] ? 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)) [ 18.384800][ T241] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.384802][ T241] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 18.384806][ T241] console_flush_one_record (kernel/printk/printk.c:3268) [ 18.384810][ T241] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 18.384811][ T241] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.384817][ T241] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 18.384819][ T241] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 18.384824][ T241] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 18.384827][ T241] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 18.384830][ T241] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 18.384832][ T241] ? vprintk_emit (kernel/printk/printk.c:2478) [ 18.384835][ T241] vprintk_emit (kernel/printk/printk.c:2479) [ 18.384839][ T241] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 18.384842][ T241] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 18.384846][ T241] _printk (kernel/printk/printk.c:2504) [ 18.384850][ T241] ? snapshot_read.cold (user.c:?) [ 18.384852][ T241] ? 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) [ 18.384855][ T241] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 18.384858][ T241] ? 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) [ 18.384861][ T241] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 18.384865][ T241] ? exit_notify (kernel/exit.c:780) [ 18.384870][ T241] __x64_sys_exit (kernel/exit.c:1118 kernel/exit.c:1116 kernel/exit.c:1116) [ 18.384872][ T241] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:61) [ 18.384874][ T241] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 18.384878][ T241] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 18.384881][ T241] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 18.384883][ T241] RIP: 0033:0x7f85f6c15c49 [ 18.384885][ T241] Code: Unable to access opcode bytes at 0x7f85f6c15c1f. Code starting with the faulting instruction =========================================== [ 18.384886][ T241] RSP: 002b:00007f85f63d4e60 EFLAGS: 00000246 ORIG_RAX: 000000000000003c [ 18.384889][ T241] RAX: ffffffffffffffda RBX: 00007f85f63d56c0 RCX: 00007f85f6c15c49 [ 18.384890][ T241] RDX: 0000000000000000 RSI: 0000000000801000 RDI: 0000000000000000 [ 18.384891][ T241] RBP: 00007f85f63d4f70 R08: 0000000000000001 R09: 00007f85f63d56c0 [ 18.384892][ T241] R10: 0000000000000008 R11: 0000000000000246 R12: 00007f85f5bd5000 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print fpu__clear_user_states:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print