====================================== | [ 9.526058][ T195] softirqs last disabled at (26029): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.526060][ T195] Preemption disabled at: | [ 9.526061][ T195] 0x0 | [ 9.526071][ T195] Tainted: [W]=WARN [ 9.526072][ T195] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.526073][ T195] Call Trace: [ 9.526075][ T195] [ 9.526077][ T195] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.526083][ T195] __might_resched.cold (kernel/sched/core.c:9234) [ 9.526088][ T195] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.526092][ T195] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.526097][ T195] __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)) [ 9.526099][ T195] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.526106][ T195] ? 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) [ 9.526109][ T195] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.526112][ T195] put_chars (drivers/char/virtio_console.c:1176) [ 9.526116][ T195] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.526118][ T195] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.526122][ T195] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.526128][ T195] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.526136][ T195] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.526138][ T195] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.526141][ T195] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.526145][ T195] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.526148][ T195] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.526150][ T195] ? 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)) [ 9.526153][ T195] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.526155][ T195] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.526159][ T195] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.526163][ T195] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.526165][ T195] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.526170][ T195] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.526173][ T195] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.526174][ T195] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.526176][ T195] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 9.526180][ T195] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.526182][ T195] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.526185][ T195] vprintk_emit (kernel/printk/printk.c:2479) [ 9.526188][ T195] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.526192][ T195] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.526195][ T195] _printk (kernel/printk/printk.c:2504) [ 9.526199][ T195] ? snapshot_read.cold (user.c:?) [ 9.526202][ T195] ? 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) [ 9.526204][ T195] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.526208][ T195] ? 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) [ 9.526211][ T195] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.526215][ T195] ? exit_notify (kernel/exit.c:780) [ 9.526216][ T195] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.526219][ T195] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.526223][ T195] do_group_exit (kernel/exit.c:1151) [ 9.526227][ T195] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.526229][ T195] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.526231][ T195] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.526235][ T195] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.526238][ T195] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.526241][ T195] RIP: 0033:0x7f2755f2d1b8 [ 9.526243][ T195] Code: Unable to access opcode bytes at 0x7f2755f2d18e. Code starting with the faulting instruction =========================================== [ 9.526244][ T195] RSP: 002b:00007fff609c2888 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.526253][ T195] RAX: ffffffffffffffda RBX: 00007f275605df88 RCX: 00007f2755f2d1b8 [ 9.526254][ T195] RDX: 00007f2755c77fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.526255][ T195] RBP: 00007fff609c28e0 R08: 0000000000000000 R09: 0000000000000050 [ 9.526256][ T195] R10: 00007fff609c26a0 R11: 0000000000000246 R12: 0000000000000001 [ 9.526257][ T195] R13: 0000000000000000 R14: 00007f275605c680 R15: 00007f275605dfa0 | [ 11.385425][ T252] softirqs last disabled at (22575): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 11.385427][ T252] Preemption disabled at: | [ 11.385428][ T252] 0x0 | [ 11.385438][ T252] Tainted: [W]=WARN [ 11.385439][ T252] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 11.385441][ T252] Call Trace: [ 11.385443][ T252] [ 11.385444][ T252] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 11.385450][ T252] __might_resched.cold (kernel/sched/core.c:9234) [ 11.385455][ T252] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 11.385459][ T252] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 11.385464][ T252] __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)) [ 11.385467][ T252] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.385474][ T252] ? 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) [ 11.385476][ T252] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 11.385480][ T252] put_chars (drivers/char/virtio_console.c:1176) [ 11.385483][ T252] ? __send_to_port (drivers/char/virtio_console.c:654) [ 11.385485][ T252] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 11.385490][ T252] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 11.385495][ T252] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 11.385503][ T252] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 11.385505][ T252] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.385508][ T252] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.385512][ T252] console_emit_next_record (kernel/printk/printk.c:3183) [ 11.385515][ T252] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 11.385517][ T252] ? 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)) [ 11.385520][ T252] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.385523][ T252] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 11.385526][ T252] console_flush_one_record (kernel/printk/printk.c:3268) [ 11.385530][ T252] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 11.385532][ T252] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.385537][ T252] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 11.385540][ T252] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 11.385542][ T252] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.385544][ T252] ? lock_acquire (kernel/locking/lockdep.c:5913) [ 11.385547][ T252] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 11.385549][ T252] ? vprintk_emit (kernel/printk/printk.c:2478) [ 11.385552][ T252] vprintk_emit (kernel/printk/printk.c:2479) [ 11.385556][ T252] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 11.385559][ T252] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 11.385563][ T252] _printk (kernel/printk/printk.c:2504) [ 11.385567][ T252] ? snapshot_read.cold (user.c:?) [ 11.385569][ T252] ? 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) [ 11.385572][ T252] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 11.385576][ T252] ? 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) [ 11.385578][ T252] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 11.385584][ T252] ? exit_notify (kernel/exit.c:780) [ 11.385586][ T252] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 11.385591][ T252] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 11.385596][ T252] do_group_exit (kernel/exit.c:1151) [ 11.385599][ T252] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 11.385602][ T252] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 11.385604][ T252] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 11.385607][ T252] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 11.385610][ T252] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 11.385613][ T252] RIP: 0033:0x7f9ca03871b8 [ 11.385615][ T252] Code: Unable to access opcode bytes at 0x7f9ca038718e. Code starting with the faulting instruction =========================================== [ 11.385616][ T252] RSP: 002b:00007ffc48c12dd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 11.385619][ T252] RAX: ffffffffffffffda RBX: 00007f9ca04b7f88 RCX: 00007f9ca03871b8 [ 11.385620][ T252] RDX: 00007f9ca00d1fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 11.385621][ T252] RBP: 00007ffc48c12e30 R08: 0000000000000000 R09: 0000000000000050 [ 11.385622][ T252] R10: 00007ffc48c12bf0 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print