====================================== | [ 9.406510][ T183] softirqs last disabled at (26967): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.406512][ T183] Preemption disabled at: | [ 9.406513][ T183] 0x0 | [ 9.406523][ T183] Tainted: [W]=WARN [ 9.406524][ T183] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.406526][ T183] Call Trace: [ 9.406527][ T183] [ 9.406529][ T183] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.406535][ T183] __might_resched.cold (kernel/sched/core.c:9234) [ 9.406540][ T183] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.406544][ T183] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.406548][ T183] __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)) [ 9.406550][ T183] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.406557][ T183] ? 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) [ 9.406560][ T183] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.406563][ T183] put_chars (drivers/char/virtio_console.c:1176) [ 9.406566][ T183] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.406568][ T183] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.406573][ T183] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.406578][ T183] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.406585][ T183] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.406588][ T183] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.406590][ T183] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.406594][ T183] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.406598][ T183] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.406599][ T183] ? 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)) [ 9.406602][ T183] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.406604][ T183] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.406608][ T183] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.406612][ T183] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.406614][ T183] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.406618][ T183] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.406621][ T183] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.406623][ T183] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.406625][ T183] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.406628][ T183] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.406630][ T183] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.406633][ T183] vprintk_emit (kernel/printk/printk.c:2479) [ 9.406636][ T183] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.406640][ T183] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.406643][ T183] _printk (kernel/printk/printk.c:2504) [ 9.406647][ T183] ? snapshot_read.cold (user.c:?) [ 9.406649][ T183] ? 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) [ 9.406652][ T183] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.406655][ T183] ? 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) [ 9.406658][ T183] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.406661][ T183] ? exit_notify (kernel/exit.c:780) [ 9.406663][ T183] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.406666][ T183] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.406670][ T183] do_group_exit (kernel/exit.c:1151) [ 9.406673][ T183] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.406675][ T183] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.406677][ T183] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.406681][ T183] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.406684][ T183] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.406686][ T183] RIP: 0033:0x7f5a46ce31b8 [ 9.406689][ T183] Code: Unable to access opcode bytes at 0x7f5a46ce318e. Code starting with the faulting instruction =========================================== [ 9.406690][ T183] RSP: 002b:00007ffccb9b40c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.406692][ T183] RAX: ffffffffffffffda RBX: 00007f5a46e13f88 RCX: 00007f5a46ce31b8 [ 9.406693][ T183] RDX: 00007f5a46a2dfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.406694][ T183] RBP: 00007ffccb9b4120 R08: 0000000000000000 R09: 0000000000000050 [ 9.406695][ T183] R10: 00007ffccb9b3ee0 R11: 0000000000000246 R12: 0000000000000001 [ 9.406696][ T183] R13: 0000000000000000 R14: 00007f5a46e12680 R15: 00007f5a46e13fa0 | [ 26.500680][ T824] softirqs last disabled at (606441): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 26.500682][ T824] Preemption disabled at: | [ 26.500683][ T824] 0x0 | [ 26.500693][ T824] Tainted: [W]=WARN [ 26.500694][ T824] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 26.500696][ T824] Call Trace: [ 26.500697][ T824] [ 26.500699][ T824] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 26.500705][ T824] __might_resched.cold (kernel/sched/core.c:9234) [ 26.500710][ T824] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 26.500714][ T824] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 26.500719][ T824] __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)) [ 26.500721][ T824] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 26.500728][ T824] ? 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) [ 26.500730][ T824] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 26.500734][ T824] put_chars (drivers/char/virtio_console.c:1176) [ 26.500738][ T824] ? __send_to_port (drivers/char/virtio_console.c:654) [ 26.500739][ T824] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 26.500744][ T824] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 26.500750][ T824] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 26.500757][ T824] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 26.500760][ T824] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.500762][ T824] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.500766][ T824] console_emit_next_record (kernel/printk/printk.c:3183) [ 26.500770][ T824] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 26.500771][ T824] ? 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)) [ 26.500775][ T824] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.500777][ T824] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 26.500780][ T824] console_flush_one_record (kernel/printk/printk.c:3268) [ 26.500784][ T824] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 26.500786][ T824] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.500791][ T824] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 26.500794][ T824] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 26.500795][ T824] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.500798][ T824] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 26.500801][ T824] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 26.500803][ T824] ? vprintk_emit (kernel/printk/printk.c:2478) [ 26.500806][ T824] vprintk_emit (kernel/printk/printk.c:2479) [ 26.500809][ T824] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 26.500813][ T824] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 26.500816][ T824] _printk (kernel/printk/printk.c:2504) [ 26.500820][ T824] ? snapshot_read.cold (user.c:?) [ 26.500823][ T824] ? 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) [ 26.500826][ T824] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 26.500829][ T824] ? 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) [ 26.500832][ T824] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 26.500836][ T824] ? exit_notify (kernel/exit.c:780) [ 26.500838][ T824] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 26.500840][ T824] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 26.500844][ T824] do_group_exit (kernel/exit.c:1151) [ 26.500848][ T824] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 26.500850][ T824] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 26.500852][ T824] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 26.500856][ T824] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 26.500859][ T824] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 26.500861][ T824] RIP: 0033:0x7fc41d13b1b8 [ 26.500863][ T824] Code: Unable to access opcode bytes at 0x7fc41d13b18e. Code starting with the faulting instruction =========================================== [ 26.500864][ T824] RSP: 002b:00007ffd52a692b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 26.500867][ T824] RAX: ffffffffffffffda RBX: 00007fc41d26bf88 RCX: 00007fc41d13b1b8 [ 26.500868][ T824] RDX: 00007fc41d078a48 RSI: ffffffffffffffb0 RDI: 0000000000000000 [ 26.500869][ T824] RBP: 00007ffd52a69310 R08: 0000000000000000 R09: 0000000000000000 [ 26.500870][ T824] R10: 00007ffd52a69150 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print