====================================== | [ 9.226425][ T199] softirqs last disabled at (20281): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 9.226428][ T199] Preemption disabled at: | [ 9.226428][ T199] 0x0 | [ 9.226438][ T199] Tainted: [W]=WARN [ 9.226440][ T199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 9.226441][ T199] Call Trace: [ 9.226443][ T199] [ 9.226444][ T199] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 9.226451][ T199] __might_resched.cold (kernel/sched/core.c:9234) [ 9.226455][ T199] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 9.226459][ T199] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 9.226463][ T199] __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)) [ 9.226468][ T199] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.226475][ T199] ? 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) [ 9.226478][ T199] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 9.226482][ T199] put_chars (drivers/char/virtio_console.c:1176) [ 9.226484][ T199] ? __send_to_port (drivers/char/virtio_console.c:654) [ 9.226485][ T199] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 9.226489][ T199] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 9.226494][ T199] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 9.226502][ T199] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 9.226504][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.226506][ T199] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.226510][ T199] console_emit_next_record (kernel/printk/printk.c:3183) [ 9.226514][ T199] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 9.226516][ T199] ? 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)) [ 9.226519][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.226520][ T199] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 9.226524][ T199] console_flush_one_record (kernel/printk/printk.c:3268) [ 9.226529][ T199] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 9.226530][ T199] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.226536][ T199] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 9.226539][ T199] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 9.226540][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.226542][ T199] ? 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) [ 9.226546][ T199] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 9.226547][ T199] ? vprintk_emit (kernel/printk/printk.c:2478) [ 9.226550][ T199] vprintk_emit (kernel/printk/printk.c:2479) [ 9.226553][ T199] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 9.226556][ T199] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 9.226559][ T199] _printk (kernel/printk/printk.c:2504) [ 9.226563][ T199] ? snapshot_read.cold (user.c:?) [ 9.226566][ T199] ? 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) [ 9.226568][ T199] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 9.226572][ T199] ? 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) [ 9.226575][ T199] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 9.226579][ T199] ? exit_notify (kernel/exit.c:780) [ 9.226580][ T199] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 9.226583][ T199] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 9.226586][ T199] do_group_exit (kernel/exit.c:1151) [ 9.226589][ T199] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 9.226591][ T199] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 9.226593][ T199] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 9.226597][ T199] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 9.226600][ T199] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 9.226602][ T199] RIP: 0033:0x7f4affd4b1b8 [ 9.226604][ T199] Code: Unable to access opcode bytes at 0x7f4affd4b18e. Code starting with the faulting instruction =========================================== [ 9.226605][ T199] RSP: 002b:00007fffb539a898 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 9.226608][ T199] RAX: ffffffffffffffda RBX: 00007f4affe7bf88 RCX: 00007f4affd4b1b8 [ 9.226609][ T199] RDX: 00007f4affa95fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 9.226610][ T199] RBP: 00007fffb539a8f0 R08: 0000000000000000 R09: 0000000000000050 [ 9.226611][ T199] R10: 00007fffb539a6b0 R11: 0000000000000246 R12: 0000000000000001 [ 9.226611][ T199] R13: 0000000000000000 R14: 00007f4affe7a680 R15: 00007f4affe7bfa0 | [ 25.632451][ T918] softirqs last disabled at (24893): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767) | [ 25.632453][ T918] Preemption disabled at: | [ 25.632454][ T918] 0x0 | [ 25.632463][ T918] Tainted: [W]=WARN [ 25.632464][ T918] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 25.632468][ T918] Call Trace: [ 25.632469][ T918] [ 25.632471][ T918] dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120) [ 25.632477][ T918] __might_resched.cold (kernel/sched/core.c:9234) [ 25.632482][ T918] ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3)) [ 25.632486][ T918] ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439) [ 25.632490][ T918] __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)) [ 25.632492][ T918] ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.632499][ T918] ? 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) [ 25.632501][ T918] alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429) [ 25.632505][ T918] put_chars (drivers/char/virtio_console.c:1176) [ 25.632507][ T918] ? __send_to_port (drivers/char/virtio_console.c:654) [ 25.632508][ T918] ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3)) [ 25.632512][ T918] ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2)) [ 25.632517][ T918] hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2)) [ 25.632524][ T918] ? hvc_write (drivers/tty/hvc/hvc_console.c:501) [ 25.632527][ T918] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.632529][ T918] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.632533][ T918] console_emit_next_record (kernel/printk/printk.c:3183) [ 25.632537][ T918] ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20) [ 25.632539][ T918] ? 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)) [ 25.632542][ T918] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.632544][ T918] ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22)) [ 25.632547][ T918] console_flush_one_record (kernel/printk/printk.c:3268) [ 25.632551][ T918] ? console_emit_next_record (kernel/printk/printk.c:3150) [ 25.632553][ T918] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.632558][ T918] console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420) [ 25.632561][ T918] ? console_flush_one_record (kernel/printk/printk.c:3316) [ 25.632563][ T918] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.632565][ T918] ? 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) [ 25.632568][ T918] ? __down_trylock_console_sem (kernel/printk/printk.c:334) [ 25.632570][ T918] ? vprintk_emit (kernel/printk/printk.c:2478) [ 25.632573][ T918] vprintk_emit (kernel/printk/printk.c:2479) [ 25.632576][ T918] ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126)) [ 25.632579][ T918] ? __lock_acquire (kernel/locking/lockdep.c:5254) [ 25.632582][ T918] _printk (kernel/printk/printk.c:2504) [ 25.632586][ T918] ? snapshot_read.cold (user.c:?) [ 25.632589][ T918] ? 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) [ 25.632591][ T918] ? __rwlock_init (kernel/locking/spinlock_debug.c:48) [ 25.632595][ T918] ? 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) [ 25.632597][ T918] do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4)) [ 25.632601][ T918] ? exit_notify (kernel/exit.c:780) [ 25.632602][ T918] ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554) [ 25.632605][ T918] ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3)) [ 25.632608][ T918] do_group_exit (kernel/exit.c:1151) [ 25.632611][ T918] __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160) [ 25.632613][ T918] x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232) [ 25.632615][ T918] do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84) [ 25.632619][ T918] ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3)) [ 25.632622][ T918] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121) [ 25.632624][ T918] RIP: 0033:0x7f0a918e41b8 [ 25.632627][ T918] Code: Unable to access opcode bytes at 0x7f0a918e418e. Code starting with the faulting instruction =========================================== [ 25.632628][ T918] RSP: 002b:00007ffdfaefcb78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 25.632630][ T918] RAX: ffffffffffffffda RBX: 00007f0a91a14f88 RCX: 00007f0a918e41b8 [ 25.632631][ T918] RDX: 00007f0a9162efc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 25.632632][ T918] RBP: 00007ffdfaefcbd0 R08: 0000000000000000 R09: 0000000000000050 [ 25.632633][ T918] R10: 00007ffdfaefc990 R11: 0000000000000246 R12: 0000000000000001 Finger prints: __irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print