====================================== | [ 10.636786][ T251] softirqs last disabled at (39979): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 10.636788][ T251] Preemption disabled at: | [ 10.636788][ T251] 0x0 | [ 10.636798][ T251] Tainted: [W]=WARN [ 10.636799][ T251] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.636801][ T251] Call Trace: [ 10.636802][ T251] [ 10.636803][ T251] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.636809][ T251] __might_resched.cold (kernel/sched/core.c:9234) [ 10.636814][ T251] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.636817][ T251] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.636822][ T251] __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)) [ 10.636825][ T251] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.636831][ T251] ? 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) [ 10.636833][ T251] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.636836][ T251] put_chars (drivers/char/virtio_console.c:1176) [ 10.636839][ T251] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.636841][ T251] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.636845][ T251] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.636850][ T251] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.636857][ T251] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.636859][ T251] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.636861][ T251] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.636865][ T251] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.636869][ T251] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.636871][ T251] ? 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)) [ 10.636874][ T251] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.636876][ T251] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.636880][ T251] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.636884][ T251] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.636886][ T251] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.636890][ T251] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.636893][ T251] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.636895][ T251] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.636897][ T251] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 10.636900][ T251] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.636902][ T251] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.636905][ T251] vprintk_emit (kernel/printk/printk.c:2479) [ 10.636909][ T251] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.636912][ T251] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.636916][ T251] _printk (kernel/printk/printk.c:2504) [ 10.636919][ T251] ? snapshot_read.cold (user.c:?) [ 10.636922][ T251] ? 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) [ 10.636924][ T251] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.636928][ T251] ? 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) [ 10.636931][ T251] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 10.636934][ T251] ? exit_notify (kernel/exit.c:780) [ 10.636936][ T251] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.636938][ T251] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.636942][ T251] do_group_exit (kernel/exit.c:1151) [ 10.636945][ T251] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 10.636947][ T251] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 10.636949][ T251] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.636953][ T251] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.636955][ T251] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.636958][ T251] RIP: 0033:0x7f815542f1b8 [ 10.636960][ T251] Code: Unable to access opcode bytes at 0x7f815542f18e. Code starting with the faulting instruction =========================================== [ 10.636961][ T251] RSP: 002b:00007fff50a6e938 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.636963][ T251] RAX: ffffffffffffffda RBX: 00007f815555ff88 RCX: 00007f815542f1b8 [ 10.636965][ T251] RDX: 00007f8155179fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.636966][ T251] RBP: 00007fff50a6e990 R08: 0000000000000000 R09: 0000000000000000 [ 10.636966][ T251] R10: 00007fff50a6e750 R11: 0000000000000246 R12: 0000000000000001 [ 10.636967][ T251] R13: 0000000000000000 R14: 00007f815555e680 R15: 00007f815555ffa0 | [ 20.164740][ T519] softirqs last disabled at (7812931): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 20.164742][ T519] Preemption disabled at: | [ 20.164743][ T519] 0x0 | [ 20.164754][ T519] Tainted: [W]=WARN [ 20.164755][ T519] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 20.164756][ T519] Call Trace: [ 20.164758][ T519] [ 20.164759][ T519] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 20.164765][ T519] __might_resched.cold (kernel/sched/core.c:9234) [ 20.164770][ T519] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 20.164774][ T519] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 20.164779][ T519] __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)) [ 20.164781][ T519] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 20.164787][ T519] ? 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) [ 20.164790][ T519] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 20.164793][ T519] put_chars (drivers/char/virtio_console.c:1176) [ 20.164795][ T519] ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842) [ 20.164797][ T519] ? __send_to_port (drivers/char/virtio_console.c:654) [ 20.164801][ T519] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 20.164805][ T519] ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380) [ 20.164807][ T519] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 20.164810][ T519] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 20.164814][ T519] ? mark_usage (kernel/locking/lockdep.c:4690) [ 20.164816][ T519] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.164817][ T519] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.164821][ T519] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 20.164823][ T519] ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2)) [ 20.164826][ T519] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.164829][ T519] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 20.164832][ T519] console_emit_next_record (kernel/printk/printk.c:3183) [ 20.164836][ T519] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 20.164838][ T519] ? 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)) [ 20.164841][ T519] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.164843][ T519] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 20.164847][ T519] console_flush_one_record (kernel/printk/printk.c:3268) [ 20.164851][ T519] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 20.164852][ T519] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.164857][ T519] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 20.164860][ T519] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 20.164862][ T519] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 20.164864][ T519] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 20.164867][ T519] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 20.164869][ T519] ? vprintk_emit (kernel/printk/printk.c:2478) [ 20.164872][ T519] vprintk_emit (kernel/printk/printk.c:2479) [ 20.164876][ T519] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 20.164879][ T519] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 20.164882][ T519] _printk (kernel/printk/printk.c:2504) [ 20.164886][ T519] ? snapshot_read.cold (user.c:?) [ 20.164889][ T519] ? 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) [ 20.164891][ T519] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 20.164895][ T519] ? 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) [ 20.164897][ T519] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 20.164901][ T519] ? exit_notify (kernel/exit.c:780) [ 20.164905][ T519] __x64_sys_exit (kernel/exit.c:1118 kernel/exit.c:1116 kernel/exit.c:1116) [ 20.164907][ T519] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:61) [ 20.164910][ T519] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 20.164914][ T519] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 20.164916][ T519] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 20.164919][ T519] RIP: 0033:0x7ff862dc0c49 [ 20.164921][ T519] Code: Unable to access opcode bytes at 0x7ff862dc0c1f. Code starting with the faulting instruction =========================================== [ 20.164922][ T519] RSP: 002b:00007ff86257fe60 EFLAGS: 00000246 ORIG_RAX: 000000000000003c [ 20.164925][ T519] RAX: ffffffffffffffda RBX: 00007ff8625806c0 RCX: 00007ff862dc0c49 [ 20.164926][ T519] RDX: 0000000000000000 RSI: 0000000000801000 RDI: 0000000000000000 [ 20.164927][ T519] RBP: 00007ff86257ff70 R08: 0000000000000001 R09: 00007ff8625806c0 [ 20.164928][ T519] R10: 0000000000000008 R11: 0000000000000246 R12: 00007ff861d80000 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print