====================================== | [ 9.408935][ T187] softirqs last disabled at (34481): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.408938][ T187] Preemption disabled at: | [ 9.408939][ T187] 0x0 | [ 9.408950][ T187] Tainted: [W]=WARN [ 9.408951][ T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.408952][ T187] Call Trace: [ 9.408959][ T187] [ 9.408961][ T187] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.408967][ T187] __might_resched.cold (kernel/sched/core.c:9234) [ 9.408972][ T187] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.408976][ T187] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.408981][ T187] __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)) [ 9.408984][ T187] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.408990][ T187] ? 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) [ 9.408992][ T187] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.408995][ T187] put_chars (drivers/char/virtio_console.c:1176) [ 9.408998][ T187] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.409000][ T187] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.409005][ T187] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.409010][ T187] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.409016][ T187] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.409018][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.409021][ T187] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.409025][ T187] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.409029][ T187] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.409030][ T187] ? 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)) [ 9.409034][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.409036][ T187] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.409040][ T187] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.409044][ T187] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.409046][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.409051][ T187] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.409054][ T187] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.409056][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.409058][ T187] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.409062][ T187] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.409063][ T187] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.409067][ T187] vprintk_emit (kernel/printk/printk.c:2479) [ 9.409070][ T187] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.409074][ T187] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.409078][ T187] _printk (kernel/printk/printk.c:2504) [ 9.409081][ T187] ? snapshot_read.cold (user.c:?) [ 9.409084][ T187] ? 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) [ 9.409087][ T187] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.409091][ T187] ? 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) [ 9.409093][ T187] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.409097][ T187] ? exit_notify (kernel/exit.c:780) [ 9.409099][ T187] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.409102][ T187] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.409106][ T187] do_group_exit (kernel/exit.c:1151) [ 9.409108][ T187] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.409110][ T187] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.409112][ T187] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.409116][ T187] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.409119][ T187] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.409121][ T187] RIP: 0033:0x7fddcf76d1b8 [ 9.409123][ T187] Code: Unable to access opcode bytes at 0x7fddcf76d18e. Code starting with the faulting instruction =========================================== [ 9.409124][ T187] RSP: 002b:00007fffc0b3b728 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.409126][ T187] RAX: ffffffffffffffda RBX: 00007fddcf89df88 RCX: 00007fddcf76d1b8 [ 9.409128][ T187] RDX: 00007fddcf4b7fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.409129][ T187] RBP: 00007fffc0b3b780 R08: 0000000000000000 R09: 0000000000008010 [ 9.409130][ T187] R10: 00007fffc0b3b540 R11: 0000000000000246 R12: 0000000000000001 [ 9.409131][ T187] R13: 0000000000000000 R14: 00007fddcf89c680 R15: 00007fddcf89dfa0 | [ 12.240906][ T302] softirqs last disabled at (23849): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 12.240908][ T302] Preemption disabled at: | [ 12.240909][ T302] 0x0 | [ 12.240919][ T302] Tainted: [W]=WARN [ 12.240920][ T302] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 12.240922][ T302] Call Trace: [ 12.240923][ T302] [ 12.240925][ T302] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 12.240931][ T302] __might_resched.cold (kernel/sched/core.c:9234) [ 12.240938][ T302] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 12.240943][ T302] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 12.240948][ T302] __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)) [ 12.240951][ T302] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.240957][ T302] ? 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) [ 12.240959][ T302] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 12.240962][ T302] put_chars (drivers/char/virtio_console.c:1176) [ 12.240965][ T302] ? __send_to_port (drivers/char/virtio_console.c:654) [ 12.240967][ T302] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 12.240971][ T302] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 12.240982][ T302] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 12.240989][ T302] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 12.240991][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.240994][ T302] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.240998][ T302] console_emit_next_record (kernel/printk/printk.c:3183) [ 12.241002][ T302] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 12.241003][ T302] ? 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)) [ 12.241007][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.241009][ T302] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 12.241013][ T302] console_flush_one_record (kernel/printk/printk.c:3268) [ 12.241017][ T302] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 12.241019][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.241024][ T302] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 12.241027][ T302] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 12.241029][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.241031][ T302] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 12.241035][ T302] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 12.241037][ T302] ? vprintk_emit (kernel/printk/printk.c:2478) [ 12.241040][ T302] vprintk_emit (kernel/printk/printk.c:2479) [ 12.241044][ T302] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 12.241047][ T302] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 12.241051][ T302] _printk (kernel/printk/printk.c:2504) [ 12.241055][ T302] ? snapshot_read.cold (user.c:?) [ 12.241058][ T302] ? 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) [ 12.241060][ T302] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 12.241064][ T302] ? 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) [ 12.241067][ T302] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 12.241070][ T302] ? exit_notify (kernel/exit.c:780) [ 12.241072][ T302] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 12.241075][ T302] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 12.241079][ T302] do_group_exit (kernel/exit.c:1151) [ 12.241082][ T302] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 12.241084][ T302] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 12.241086][ T302] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 12.241089][ T302] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 12.241093][ T302] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 12.241095][ T302] RIP: 0033:0x7fb9c18e61b8 [ 12.241097][ T302] Code: Unable to access opcode bytes at 0x7fb9c18e618e. Code starting with the faulting instruction =========================================== [ 12.241098][ T302] RSP: 002b:00007ffed06b2dd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 12.241101][ T302] RAX: ffffffffffffffda RBX: 00007fb9c1a16f88 RCX: 00007fb9c18e61b8 [ 12.241102][ T302] RDX: 00007fb9c1630fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 12.241103][ T302] RBP: 00007ffed06b2e30 R08: 0000000000000000 R09: 0000000000008010 [ 12.241104][ T302] R10: 00007ffed06b2bf0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print