====================================== | [ 42.692292][ T337] softirqs last disabled at (22089): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 42.692296][ T337] Preemption disabled at: | [ 42.692296][ T337] 0x0 | [ 42.692310][ T337] Tainted: [W]=WARN [ 42.692311][ T337] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 42.692314][ T337] Call Trace: [ 42.692316][ T337] [ 42.692318][ T337] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 42.692326][ T337] __might_resched.cold (kernel/sched/core.c:9234) [ 42.692332][ T337] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 42.692338][ T337] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 42.692344][ T337] __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)) [ 42.692348][ T337] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 42.692357][ T337] ? 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) [ 42.692361][ T337] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 42.692367][ T337] put_chars (drivers/char/virtio_console.c:1176) [ 42.692371][ T337] ? __send_to_port (drivers/char/virtio_console.c:654) [ 42.692373][ T337] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 42.692378][ T337] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 42.692388][ T337] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 42.692399][ T337] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 42.692404][ T337] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.692407][ T337] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 42.692414][ T337] console_emit_next_record (kernel/printk/printk.c:3183) [ 42.692420][ T337] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 42.692423][ T337] ? 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)) [ 42.692428][ T337] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.692431][ T337] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 42.692438][ T337] console_flush_one_record (kernel/printk/printk.c:3268) [ 42.692445][ T337] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 42.692447][ T337] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 42.692461][ T337] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 42.692466][ T337] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 42.692469][ T337] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.692472][ T337] ? 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) [ 42.692478][ T337] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 42.692481][ T337] ? vprintk_emit (kernel/printk/printk.c:2478) [ 42.692485][ T337] vprintk_emit (kernel/printk/printk.c:2479) [ 42.692491][ T337] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 42.692496][ T337] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 42.692502][ T337] _printk (kernel/printk/printk.c:2504) [ 42.692508][ T337] ? snapshot_read.cold (user.c:?) [ 42.692512][ T337] ? 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) [ 42.692517][ T337] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 42.692523][ T337] ? 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) [ 42.692528][ T337] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 42.692533][ T337] ? exit_notify (kernel/exit.c:780) [ 42.692535][ T337] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 42.692540][ T337] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 42.692546][ T337] do_group_exit (kernel/exit.c:1151) [ 42.692551][ T337] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 42.692554][ T337] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 42.692557][ T337] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 42.692562][ T337] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 42.692567][ T337] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 42.692570][ T337] RIP: 0033:0x7fc1ce7df1b8 [ 42.692573][ T337] Code: Unable to access opcode bytes at 0x7fc1ce7df18e. Code starting with the faulting instruction =========================================== [ 42.692575][ T337] RSP: 002b:00007fffba8979c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 42.692578][ T337] RAX: ffffffffffffffda RBX: 00007fc1ce90ff88 RCX: 00007fc1ce7df1b8 [ 42.692580][ T337] RDX: 00007fc1ce529fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 42.692582][ T337] RBP: 00007fffba897a20 R08: 0000000000000000 R09: 0000000000000050 [ 42.692583][ T337] R10: 00007fffba8977e0 R11: 0000000000000246 R12: 0000000000000001 [ 42.692585][ T337] R13: 0000000000000000 R14: 00007fc1ce90e680 R15: 00007fc1ce90ffa0 | [ 48.145067][ T354] softirqs last disabled at (25265): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 48.145070][ T354] Preemption disabled at: | [ 48.145070][ T354] 0x0 | [ 48.145081][ T354] Tainted: [W]=WARN [ 48.145082][ T354] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 48.145084][ T354] Call Trace: [ 48.145085][ T354] [ 48.145086][ T354] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 48.145093][ T354] __might_resched.cold (kernel/sched/core.c:9234) [ 48.145098][ T354] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 48.145102][ T354] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 48.145107][ T354] __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)) [ 48.145109][ T354] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 48.145116][ T354] ? 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) [ 48.145118][ T354] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 48.145122][ T354] put_chars (drivers/char/virtio_console.c:1176) [ 48.145125][ T354] ? __send_to_port (drivers/char/virtio_console.c:654) [ 48.145126][ T354] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 48.145130][ T354] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 48.145135][ T354] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 48.145143][ T354] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 48.145146][ T354] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 48.145148][ T354] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 48.145152][ T354] console_emit_next_record (kernel/printk/printk.c:3183) [ 48.145156][ T354] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 48.145158][ T354] ? 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)) [ 48.145162][ T354] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 48.145163][ T354] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 48.145168][ T354] console_flush_one_record (kernel/printk/printk.c:3268) [ 48.145172][ T354] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 48.145174][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 48.145180][ T354] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 48.145183][ T354] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 48.145185][ T354] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 48.145187][ T354] ? 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) [ 48.145191][ T354] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 48.145192][ T354] ? vprintk_emit (kernel/printk/printk.c:2478) [ 48.145195][ T354] vprintk_emit (kernel/printk/printk.c:2479) [ 48.145198][ T354] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 48.145201][ T354] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 48.145206][ T354] _printk (kernel/printk/printk.c:2504) [ 48.145209][ T354] ? snapshot_read.cold (user.c:?) [ 48.145212][ T354] ? 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) [ 48.145215][ T354] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 48.145219][ T354] ? 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) [ 48.145222][ T354] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 48.145226][ T354] ? exit_notify (kernel/exit.c:780) [ 48.145228][ T354] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 48.145231][ T354] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 48.145235][ T354] do_group_exit (kernel/exit.c:1151) [ 48.145238][ T354] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 48.145240][ T354] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 48.145243][ T354] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 48.145247][ T354] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 48.145250][ T354] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 48.145252][ T354] RIP: 0033:0x7f917c28a1b8 [ 48.145254][ T354] Code: Unable to access opcode bytes at 0x7f917c28a18e. Code starting with the faulting instruction =========================================== [ 48.145256][ T354] RSP: 002b:00007ffddbd5b358 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 48.145258][ T354] RAX: ffffffffffffffda RBX: 00007f917c3baf88 RCX: 00007f917c28a1b8 [ 48.145260][ T354] RDX: 00007f917bfd4fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 48.145261][ T354] RBP: 00007ffddbd5b3b0 R08: 0000000000000000 R09: 0000000000000050 [ 48.145262][ T354] R10: 00007ffddbd5b170 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print