====================================== | [ 14.451500][ T226] softirqs last disabled at (33209): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 14.451502][ T226] Preemption disabled at: | [ 14.451503][ T226] 0x0 | [ 14.451513][ T226] Tainted: [W]=WARN [ 14.451514][ T226] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 14.451516][ T226] Call Trace: [ 14.451518][ T226] [ 14.451519][ T226] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 14.451526][ T226] __might_resched.cold (kernel/sched/core.c:9234) [ 14.451531][ T226] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 14.451535][ T226] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 14.451543][ T226] __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)) [ 14.451545][ T226] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 14.451552][ T226] ? 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) [ 14.451555][ T226] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 14.451559][ T226] put_chars (drivers/char/virtio_console.c:1176) [ 14.451561][ T226] ? __send_to_port (drivers/char/virtio_console.c:654) [ 14.451562][ T226] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 14.451566][ T226] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 14.451571][ T226] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 14.451579][ T226] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 14.451582][ T226] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.451584][ T226] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.451588][ T226] console_emit_next_record (kernel/printk/printk.c:3183) [ 14.451592][ T226] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 14.451594][ T226] ? 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)) [ 14.451597][ T226] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.451599][ T226] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 14.451603][ T226] console_flush_one_record (kernel/printk/printk.c:3268) [ 14.451607][ T226] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 14.451609][ T226] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.451614][ T226] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 14.451617][ T226] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 14.451619][ T226] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.451621][ T226] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 14.451624][ T226] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 14.451626][ T226] ? vprintk_emit (kernel/printk/printk.c:2478) [ 14.451629][ T226] vprintk_emit (kernel/printk/printk.c:2479) [ 14.451632][ T226] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 14.451635][ T226] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 14.451639][ T226] _printk (kernel/printk/printk.c:2504) [ 14.451643][ T226] ? snapshot_read.cold (user.c:?) [ 14.451645][ T226] ? 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) [ 14.451648][ T226] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 14.451652][ T226] ? 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) [ 14.451655][ T226] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 14.451658][ T226] ? exit_notify (kernel/exit.c:780) [ 14.451660][ T226] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 14.451663][ T226] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 14.451666][ T226] do_group_exit (kernel/exit.c:1151) [ 14.451669][ T226] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 14.451671][ T226] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 14.451673][ T226] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 14.451678][ T226] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 14.451681][ T226] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 14.451683][ T226] RIP: 0033:0x7fa17fab71b8 [ 14.451685][ T226] Code: Unable to access opcode bytes at 0x7fa17fab718e. Code starting with the faulting instruction =========================================== [ 14.451686][ T226] RSP: 002b:00007ffc195ebca8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 14.451688][ T226] RAX: ffffffffffffffda RBX: 00007fa17fbe7f88 RCX: 00007fa17fab71b8 [ 14.451689][ T226] RDX: 00007fa17f801fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 14.451690][ T226] RBP: 00007ffc195ebd00 R08: 0000000000000000 R09: 0000000000000050 [ 14.451691][ T226] R10: 00007ffc195ebac0 R11: 0000000000000246 R12: 0000000000000001 [ 14.451692][ T226] R13: 0000000000000000 R14: 00007fa17fbe6680 R15: 00007fa17fbe7fa0 | [ 17.855059][ T246] softirqs last disabled at (34611): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 17.855061][ T246] Preemption disabled at: | [ 17.855062][ T246] 0x0 | [ 17.855072][ T246] Tainted: [W]=WARN [ 17.855073][ T246] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 17.855074][ T246] Call Trace: [ 17.855076][ T246] [ 17.855077][ T246] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 17.855083][ T246] __might_resched.cold (kernel/sched/core.c:9234) [ 17.855088][ T246] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 17.855092][ T246] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 17.855096][ T246] __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)) [ 17.855098][ T246] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 17.855105][ T246] ? 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) [ 17.855108][ T246] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 17.855111][ T246] put_chars (drivers/char/virtio_console.c:1176) [ 17.855114][ T246] ? __send_to_port (drivers/char/virtio_console.c:654) [ 17.855115][ T246] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 17.855119][ T246] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 17.855124][ T246] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 17.855131][ T246] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 17.855134][ T246] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.855136][ T246] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.855140][ T246] console_emit_next_record (kernel/printk/printk.c:3183) [ 17.855144][ T246] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 17.855146][ T246] ? 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)) [ 17.855149][ T246] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.855150][ T246] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 17.855154][ T246] console_flush_one_record (kernel/printk/printk.c:3268) [ 17.855158][ T246] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 17.855160][ T246] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.855165][ T246] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 17.855168][ T246] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 17.855170][ T246] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.855172][ T246] ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871) [ 17.855175][ T246] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 17.855177][ T246] ? vprintk_emit (kernel/printk/printk.c:2478) [ 17.855180][ T246] vprintk_emit (kernel/printk/printk.c:2479) [ 17.855183][ T246] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 17.855186][ T246] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 17.855189][ T246] _printk (kernel/printk/printk.c:2504) [ 17.855193][ T246] ? snapshot_read.cold (user.c:?) [ 17.855196][ T246] ? 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) [ 17.855198][ T246] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 17.855202][ T246] ? 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) [ 17.855205][ T246] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 17.855208][ T246] ? exit_notify (kernel/exit.c:780) [ 17.855210][ T246] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 17.855212][ T246] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 17.855218][ T246] do_group_exit (kernel/exit.c:1151) [ 17.855221][ T246] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 17.855222][ T246] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 17.855225][ T246] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 17.855229][ T246] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 17.855231][ T246] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 17.855234][ T246] RIP: 0033:0x7f43545c21b8 [ 17.855236][ T246] Code: Unable to access opcode bytes at 0x7f43545c218e. Code starting with the faulting instruction =========================================== [ 17.855237][ T246] RSP: 002b:00007ffdfa1cc3f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 17.855239][ T246] RAX: ffffffffffffffda RBX: 00007f43546f2f88 RCX: 00007f43545c21b8 [ 17.855240][ T246] RDX: 00007f435430cfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 17.855241][ T246] RBP: 00007ffdfa1cc450 R08: 0000000000000000 R09: 0000000000000000 [ 17.855242][ T246] R10: 00007ffdfa1cc210 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print