====================================== | [ 10.657505][ T184] softirqs last disabled at (22493): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 10.657508][ T184] Preemption disabled at: | [ 10.657509][ T184] 0x0 | [ 10.657522][ T184] Tainted: [W]=WARN [ 10.657523][ T184] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.657526][ T184] Call Trace: [ 10.657528][ T184] [ 10.657530][ T184] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 10.657538][ T184] __might_resched.cold (kernel/sched/core.c:9234) [ 10.657544][ T184] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 10.657550][ T184] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 10.657557][ T184] __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)) [ 10.657560][ T184] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.657570][ T184] ? 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) [ 10.657574][ T184] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 10.657580][ T184] put_chars (drivers/char/virtio_console.c:1176) [ 10.657584][ T184] ? __send_to_port (drivers/char/virtio_console.c:654) [ 10.657587][ T184] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 10.657593][ T184] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 10.657602][ T184] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 10.657614][ T184] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 10.657618][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.657622][ T184] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.657629][ T184] console_emit_next_record (kernel/printk/printk.c:3183) [ 10.657635][ T184] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 10.657637][ T184] ? 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)) [ 10.657642][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.657646][ T184] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 10.657653][ T184] console_flush_one_record (kernel/printk/printk.c:3268) [ 10.657660][ T184] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 10.657662][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.657672][ T184] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 10.657678][ T184] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 10.657681][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.657685][ T184] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 10.657691][ T184] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 10.657694][ T184] ? vprintk_emit (kernel/printk/printk.c:2478) [ 10.657700][ T184] vprintk_emit (kernel/printk/printk.c:2479) [ 10.657706][ T184] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 10.657712][ T184] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 10.657718][ T184] _printk (kernel/printk/printk.c:2504) [ 10.657728][ T184] ? snapshot_read.cold (user.c:?) [ 10.657733][ T184] ? 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) [ 10.657737][ T184] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 10.657743][ T184] ? 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) [ 10.657748][ T184] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 10.657754][ T184] ? exit_notify (kernel/exit.c:780) [ 10.657757][ T184] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 10.657761][ T184] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 10.657768][ T184] do_group_exit (kernel/exit.c:1151) [ 10.657773][ T184] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 10.657776][ T184] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 10.657780][ T184] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 10.657784][ T184] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 10.657789][ T184] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 10.657792][ T184] RIP: 0033:0x7fe53e5f41b8 [ 10.657796][ T184] Code: Unable to access opcode bytes at 0x7fe53e5f418e. Code starting with the faulting instruction =========================================== [ 10.657798][ T184] RSP: 002b:00007ffe24a23018 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.657801][ T184] RAX: ffffffffffffffda RBX: 00007fe53e724f88 RCX: 00007fe53e5f41b8 [ 10.657803][ T184] RDX: 00007fe53e33efc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.657805][ T184] RBP: 00007ffe24a23070 R08: 0000000000000000 R09: 0000000000000050 [ 10.657806][ T184] R10: 00007ffe24a22e30 R11: 0000000000000246 R12: 0000000000000001 [ 10.657808][ T184] R13: 0000000000000000 R14: 00007fe53e723680 R15: 00007fe53e724fa0 | [ 86.846810][ T1849] softirqs last disabled at (18007): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 86.846813][ T1849] Preemption disabled at: | [ 86.846814][ T1849] 0x0 | [ 86.846829][ T1849] Tainted: [W]=WARN [ 86.846830][ T1849] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 86.846832][ T1849] Call Trace: [ 86.846835][ T1849] [ 86.846837][ T1849] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 86.846846][ T1849] __might_resched.cold (kernel/sched/core.c:9234) [ 86.846852][ T1849] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 86.846858][ T1849] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 86.846866][ T1849] __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)) [ 86.846869][ T1849] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 86.846880][ T1849] ? 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) [ 86.846883][ T1849] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 86.846889][ T1849] put_chars (drivers/char/virtio_console.c:1176) [ 86.846895][ T1849] ? __send_to_port (drivers/char/virtio_console.c:654) [ 86.846898][ T1849] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 86.846905][ T1849] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 86.846915][ T1849] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 86.846927][ T1849] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 86.846932][ T1849] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 86.846936][ T1849] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 86.846943][ T1849] console_emit_next_record (kernel/printk/printk.c:3183) [ 86.846950][ T1849] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 86.846952][ T1849] ? 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)) [ 86.846958][ T1849] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 86.846962][ T1849] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 86.846969][ T1849] console_flush_one_record (kernel/printk/printk.c:3268) [ 86.846977][ T1849] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 86.846980][ T1849] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 86.846990][ T1849] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 86.846994][ T1849] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 86.846997][ T1849] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 86.847001][ T1849] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 86.847007][ T1849] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 86.847010][ T1849] ? vprintk_emit (kernel/printk/printk.c:2478) [ 86.847016][ T1849] vprintk_emit (kernel/printk/printk.c:2479) [ 86.847022][ T1849] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 86.847028][ T1849] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 86.847035][ T1849] _printk (kernel/printk/printk.c:2504) [ 86.847041][ T1849] ? snapshot_read.cold (user.c:?) [ 86.847045][ T1849] ? 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) [ 86.847050][ T1849] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 86.847057][ T1849] ? 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) [ 86.847061][ T1849] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 86.847067][ T1849] ? exit_notify (kernel/exit.c:780) [ 86.847070][ T1849] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 86.847074][ T1849] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 86.847082][ T1849] do_group_exit (kernel/exit.c:1151) [ 86.847088][ T1849] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 86.847092][ T1849] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 86.847095][ T1849] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 86.847100][ T1849] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 86.847105][ T1849] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 86.847109][ T1849] RIP: 0033:0x7f1ebe68f1b8 [ 86.847112][ T1849] Code: Unable to access opcode bytes at 0x7f1ebe68f18e. Code starting with the faulting instruction =========================================== [ 86.847114][ T1849] RSP: 002b:00007fff5a85c4e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 86.847118][ T1849] RAX: ffffffffffffffda RBX: 00007f1ebe7bff88 RCX: 00007f1ebe68f1b8 [ 86.847120][ T1849] RDX: 00007f1ebe59fdc8 RSI: fffffffffffffc30 RDI: 0000000000000000 [ 86.847122][ T1849] RBP: 00007fff5a85c540 R08: 0000000000000000 R09: 0000000000000120 [ 86.847123][ T1849] R10: 00007fff5a85c340 R11: 0000000000000246 R12: 0000000000000002 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print