====================================== | [ 97.536612][ T2836] softirqs last disabled at (18395): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 97.536620][ T2836] Preemption disabled at: | [ 97.536621][ T2836] 0x0 | [ 97.536635][ T2836] Tainted: [W]=WARN [ 97.536636][ T2836] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 97.536638][ T2836] Call Trace: [ 97.536641][ T2836] [ 97.536643][ T2836] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 97.536651][ T2836] __might_resched.cold (kernel/sched/core.c:9234) [ 97.536658][ T2836] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 97.536664][ T2836] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 97.536672][ T2836] __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)) [ 97.536676][ T2836] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 97.536685][ T2836] ? 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) [ 97.536689][ T2836] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 97.536695][ T2836] put_chars (drivers/char/virtio_console.c:1176) [ 97.536699][ T2836] ? __send_to_port (drivers/char/virtio_console.c:654) [ 97.536702][ T2836] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 97.536709][ T2836] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 97.536718][ T2836] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 97.536729][ T2836] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 97.536733][ T2836] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 97.536737][ T2836] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 97.536744][ T2836] console_emit_next_record (kernel/printk/printk.c:3183) [ 97.536750][ T2836] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 97.536753][ T2836] ? 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)) [ 97.536759][ T2836] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 97.536763][ T2836] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 97.536770][ T2836] console_flush_one_record (kernel/printk/printk.c:3268) [ 97.536777][ T2836] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 97.536780][ T2836] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 97.536790][ T2836] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 97.536794][ T2836] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 97.536797][ T2836] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 97.536801][ T2836] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 97.536807][ T2836] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 97.536810][ T2836] ? vprintk_emit (kernel/printk/printk.c:2478) [ 97.536817][ T2836] vprintk_emit (kernel/printk/printk.c:2479) [ 97.536823][ T2836] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 97.536830][ T2836] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 97.536837][ T2836] _printk (kernel/printk/printk.c:2504) [ 97.536842][ T2836] ? snapshot_read.cold (user.c:?) [ 97.536847][ T2836] ? 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) [ 97.536851][ T2836] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 97.536858][ T2836] ? 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) [ 97.536863][ T2836] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 97.536869][ T2836] ? exit_notify (kernel/exit.c:780) [ 97.536872][ T2836] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 97.536877][ T2836] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 97.536885][ T2836] do_group_exit (kernel/exit.c:1151) [ 97.536890][ T2836] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 97.536893][ T2836] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 97.536896][ T2836] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 97.536900][ T2836] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 97.536905][ T2836] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 97.536909][ T2836] RIP: 0033:0x7f43f84e61b8 [ 97.536913][ T2836] Code: Unable to access opcode bytes at 0x7f43f84e618e. Code starting with the faulting instruction =========================================== [ 97.536914][ T2836] RSP: 002b:00007fff7b53c058 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 97.536917][ T2836] RAX: ffffffffffffffda RBX: 00007f43f8616f88 RCX: 00007f43f84e61b8 [ 97.536919][ T2836] RDX: 00007f43f82777c8 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 97.536921][ T2836] RBP: 00007fff7b53c0b0 R08: 0000000000000000 R09: 0000000000001010 [ 97.536923][ T2836] R10: 00007fff7b53bed0 R11: 0000000000000246 R12: 0000000000000002 [ 97.536924][ T2836] R13: 0000000000000000 R14: 00007f43f8615680 R15: 00007f43f8616fa0 | [ 259.915729][ T8869] softirqs last disabled at (25047): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 259.915737][ T8869] Preemption disabled at: | [ 259.915737][ T8869] 0x0 | [ 259.915749][ T8869] Tainted: [W]=WARN [ 259.915750][ T8869] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 259.915752][ T8869] Call Trace: [ 259.915754][ T8869] [ 259.915755][ T8869] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 259.915762][ T8869] __might_resched.cold (kernel/sched/core.c:9234) [ 259.915767][ T8869] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 259.915771][ T8869] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 259.915777][ T8869] __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)) [ 259.915779][ T8869] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 259.915786][ T8869] ? 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) [ 259.915789][ T8869] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 259.915792][ T8869] put_chars (drivers/char/virtio_console.c:1176) [ 259.915795][ T8869] ? __send_to_port (drivers/char/virtio_console.c:654) [ 259.915796][ T8869] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 259.915801][ T8869] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 259.915807][ T8869] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 259.915813][ T8869] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 259.915815][ T8869] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 259.915818][ T8869] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 259.915822][ T8869] console_emit_next_record (kernel/printk/printk.c:3183) [ 259.915826][ T8869] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 259.915828][ T8869] ? 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)) [ 259.915831][ T8869] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 259.915834][ T8869] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 259.915838][ T8869] console_flush_one_record (kernel/printk/printk.c:3268) [ 259.915843][ T8869] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 259.915845][ T8869] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 259.915851][ T8869] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 259.915854][ T8869] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 259.915856][ T8869] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 259.915859][ T8869] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 259.915863][ T8869] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 259.915865][ T8869] ? vprintk_emit (kernel/printk/printk.c:2478) [ 259.915869][ T8869] vprintk_emit (kernel/printk/printk.c:2479) [ 259.915873][ T8869] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 259.915877][ T8869] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 259.915882][ T8869] _printk (kernel/printk/printk.c:2504) [ 259.915886][ T8869] ? snapshot_read.cold (user.c:?) [ 259.915889][ T8869] ? 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) [ 259.915892][ T8869] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 259.915896][ T8869] ? 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) [ 259.915899][ T8869] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 259.915903][ T8869] ? exit_notify (kernel/exit.c:780) [ 259.915906][ T8869] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 259.915908][ T8869] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 259.915913][ T8869] do_group_exit (kernel/exit.c:1151) [ 259.915916][ T8869] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 259.915918][ T8869] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 259.915920][ T8869] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 259.915923][ T8869] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 259.915927][ T8869] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 259.915929][ T8869] RIP: 0033:0x7f2a133781b8 [ 259.915932][ T8869] Code: Unable to access opcode bytes at 0x7f2a1337818e. Code starting with the faulting instruction =========================================== [ 259.915933][ T8869] RSP: 002b:00007ffe05224fe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 259.915935][ T8869] RAX: ffffffffffffffda RBX: 00007f2a134a8f88 RCX: 00007f2a133781b8 [ 259.915937][ T8869] RDX: 00007f2a131097c8 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 259.915938][ T8869] RBP: 00007ffe05225040 R08: 0000000000000000 R09: 0000000000001010 [ 259.915939][ T8869] R10: 00007ffe05224e60 R11: 0000000000000246 R12: 0000000000000002 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print