Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|
possible deadlock in kvm_synchronize_tsc kvm | C | unreliable | 4 | 1300d | 1297d | 0/28 | closed as dup on 2021/03/24 12:17 |
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Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|
possible deadlock in kvm_synchronize_tsc kvm | C | unreliable | 4 | 1300d | 1297d | 0/28 | closed as dup on 2021/03/24 12:17 |
Title | Replies (including bot) | Last reply |
---|---|---|
[PATCH 5.14 000/125] 5.14.16-rc1 review | 130 (130) | 2021/11/02 07:19 |
[PATCH 0/2] KVM: x86: fix lockdep splat due to Xen runstate update | 14 (14) | 2021/10/25 12:15 |
[syzbot] possible deadlock in scheduler_tick | 2 (3) | 2021/03/24 12:19 |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | possible deadlock in scheduler_tick (2) ntfs3 | C | 10 | 493d | 510d | 23/28 | fixed on 2023/09/28 17:51 | ||
linux-6.1 | possible deadlock in scheduler_tick origin:upstream missing-backport | C | done | 237 | 146d | 205d | 3/3 | fixed on 2024/06/26 10:57 | |
upstream | possible deadlock in scheduler_tick (3) bpf net | C | 1179 | 168d | 204d | 25/28 | fixed on 2024/05/22 23:36 | ||
linux-5.15 | possible deadlock in scheduler_tick | C | done | 162 | 184d | 208d | 3/3 | fixed on 2024/05/16 16:53 |
===================================================== WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected 5.12.0-rc3-syzkaller #0 Not tainted ----------------------------------------------------- syz-executor030/8435 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: ffffc90001a2a230 (&kvm->arch.pvclock_gtod_sync_lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:354 [inline] ffffc90001a2a230 (&kvm->arch.pvclock_gtod_sync_lock){+.+.}-{2:2}, at: get_kvmclock_ns+0x25/0x390 arch/x86/kvm/x86.c:2587 and this task is already holding: ffff8880b9d35198 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1321 [inline] ffff8880b9d35198 (&rq->lock){-.-.}-{2:2}, at: __schedule+0x21c/0x21b0 kernel/sched/core.c:4990 which would create a new lock dependency: (&rq->lock){-.-.}-{2:2} -> (&kvm->arch.pvclock_gtod_sync_lock){+.+.}-{2:2} but this new dependency connects a HARDIRQ-irq-safe lock: (&rq->lock){-.-.}-{2:2} ... which became HARDIRQ-irq-safe at: lock_acquire kernel/locking/lockdep.c:5510 [inline] lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5475 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 rq_lock kernel/sched/sched.h:1321 [inline] scheduler_tick+0xa4/0x4b0 kernel/sched/core.c:4538 update_process_times+0x191/0x200 kernel/time/timer.c:1801 tick_periodic+0x79/0x230 kernel/time/tick-common.c:100 tick_handle_periodic+0x41/0x120 kernel/time/tick-common.c:112 timer_interrupt+0x3f/0x60 arch/x86/kernel/time.c:57 __handle_irq_event_percpu+0x303/0x8f0 kernel/irq/handle.c:156 handle_irq_event_percpu kernel/irq/handle.c:196 [inline] handle_irq_event+0x102/0x290 kernel/irq/handle.c:213 handle_level_irq+0x256/0x6e0 kernel/irq/chip.c:650 generic_handle_irq_desc include/linux/irqdesc.h:158 [inline] handle_irq arch/x86/kernel/irq.c:231 [inline] __common_interrupt+0x9e/0x200 arch/x86/kernel/irq.c:250 common_interrupt+0x9f/0xd0 arch/x86/kernel/irq.c:240 asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:623 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline] _raw_spin_unlock_irqrestore+0x38/0x70 kernel/locking/spinlock.c:191 __setup_irq+0xc72/0x1ce0 kernel/irq/manage.c:1737 request_threaded_irq+0x28a/0x3b0 kernel/irq/manage.c:2127 request_irq include/linux/interrupt.h:160 [inline] setup_default_timer_irq arch/x86/kernel/time.c:70 [inline] hpet_time_init+0x28/0x42 arch/x86/kernel/time.c:82 x86_late_time_init+0x58/0x94 arch/x86/kernel/time.c:94 start_kernel+0x3ee/0x496 init/main.c:1028 secondary_startup_64_no_verify+0xb0/0xbb to a HARDIRQ-irq-unsafe lock: (&kvm->arch.pvclock_gtod_sync_lock){+.+.}-{2:2} ... which became HARDIRQ-irq-unsafe at: ... lock_acquire kernel/locking/lockdep.c:5510 [inline] lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5475 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:354 [inline] kvm_synchronize_tsc+0x459/0x1230 arch/x86/kvm/x86.c:2332 kvm_arch_vcpu_postcreate+0x73/0x180 arch/x86/kvm/x86.c:10183 kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:3239 [inline] kvm_vm_ioctl+0x1b2d/0x2800 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3839 kvm_vm_compat_ioctl+0x125/0x230 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4052 __do_compat_sys_ioctl+0x1d3/0x230 fs/ioctl.c:842 do_syscall_32_irqs_on arch/x86/entry/common.c:77 [inline] __do_fast_syscall_32+0x56/0x90 arch/x86/entry/common.c:140 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:165 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c other info that might help us debug this: Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&kvm->arch.pvclock_gtod_sync_lock); local_irq_disable(); lock(&rq->lock); lock(&kvm->arch.pvclock_gtod_sync_lock); <Interrupt> lock(&rq->lock); *** DEADLOCK *** 1 lock held by syz-executor030/8435: #0: ffff8880b9d35198 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1321 [inline] #0: ffff8880b9d35198 (&rq->lock){-.-.}-{2:2}, at: __schedule+0x21c/0x21b0 kernel/sched/core.c:4990 the dependencies between HARDIRQ-irq-safe lock and the holding lock: -> (&rq->lock){-.-.}-{2:2} { IN-HARDIRQ-W at: lock_acquire kernel/locking/lockdep.c:5510 [inline] lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5475 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 rq_lock kernel/sched/sched.h:1321 [inline] scheduler_tick+0xa4/0x4b0 kernel/sched/core.c:4538 update_process_times+0x191/0x200 kernel/time/timer.c:1801 tick_periodic+0x79/0x230 kernel/time/tick-common.c:100 tick_handle_periodic+0x41/0x120 kernel/time/tick-common.c:112 timer_interrupt+0x3f/0x60 arch/x86/kernel/time.c:57 __handle_irq_event_percpu+0x303/0x8f0 kernel/irq/handle.c:156 handle_irq_event_percpu kernel/irq/handle.c:196 [inline] handle_irq_event+0x102/0x290 kernel/irq/handle.c:213 handle_level_irq+0x256/0x6e0 kernel/irq/chip.c:650 generic_handle_irq_desc include/linux/irqdesc.h:158 [inline] handle_irq arch/x86/kernel/irq.c:231 [inline] __common_interrupt+0x9e/0x200 arch/x86/kernel/irq.c:250 common_interrupt+0x9f/0xd0 arch/x86/kernel/irq.c:240 asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:623 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline] _raw_spin_unlock_irqrestore+0x38/0x70 kernel/locking/spinlock.c:191 __setup_irq+0xc72/0x1ce0 kernel/irq/manage.c:1737 request_threaded_irq+0x28a/0x3b0 kernel/irq/manage.c:2127 request_irq include/linux/interrupt.h:160 [inline] setup_default_timer_irq arch/x86/kernel/time.c:70 [inline] hpet_time_init+0x28/0x42 arch/x86/kernel/time.c:82 x86_late_time_init+0x58/0x94 arch/x86/kernel/time.c:94 start_kernel+0x3ee/0x496 init/main.c:1028 secondary_startup_64_no_verify+0xb0/0xbb IN-SOFTIRQ-W at: lock_acquire kernel/locking/lockdep.c:5510 [inline] lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5475 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 rq_lock kernel/sched/sched.h:1321 [inline] ttwu_queue kernel/sched/core.c:3184 [inline] try_to_wake_up+0x5e6/0x14a0 kernel/sched/core.c:3464 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1431 expire_timers kernel/time/timer.c:1476 [inline] __run_timers.part.0+0x67c/0xa50 kernel/time/timer.c:1745 __run_timers kernel/time/timer.c:1726 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1758 __do_softirq+0x29b/0x9f6 kernel/softirq.c:345 invoke_softirq kernel/softirq.c:221 [inline] __irq_exit_rcu kernel/softirq.c:422 [inline] irq_exit_rcu+0x134/0x200 kernel/softirq.c:434 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1100 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:632 rdtsc_ordered arch/x86/include/asm/msr.h:234 [inline] delay_tsc+0x45/0xb0 arch/x86/lib/delay.c:72 try_check_zero+0x223/0x430 kernel/rcu/srcutree.c:707 srcu_advance_state kernel/rcu/srcutree.c:1229 [inline] process_srcu+0x2f2/0xe90 kernel/rcu/srcutree.c:1327 process_one_work+0x98d/0x1600 kernel/workqueue.c:2275 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421 kthread+0x3b1/0x4a0 kernel/kthread.c:292 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294 INITIAL USE at: lock_acquire kernel/locking/lockdep.c:5510 [inline] lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5475 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:159 rq_attach_root+0x20/0x2e0 kernel/sched/topology.c:470 sched_init+0x6e8/0xbf3 kernel/sched/core.c:8213 start_kernel+0x18e/0x496 init/main.c:920 secondary_startup_64_no_verify+0xb0/0xbb } ... key at: [<ffffffff8f39a7c0>] __key.298+0x0/0x40 ... acquired at: lock_acquire kernel/locking/lockdep.c:5510 [inline] lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5475 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:354 [inline] get_kvmclock_ns+0x25/0x390 arch/x86/kvm/x86.c:2587 kvm_xen_update_runstate+0x3d/0x2c0 arch/x86/kvm/xen.c:69 kvm_xen_update_runstate_guest+0x74/0x320 arch/x86/kvm/xen.c:100 kvm_xen_runstate_set_preempted arch/x86/kvm/xen.h:96 [inline] kvm_arch_vcpu_put+0x2d8/0x5a0 arch/x86/kvm/x86.c:4062 kvm_sched_out+0xbf/0x100 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4876 __fire_sched_out_preempt_notifiers kernel/sched/core.c:3922 [inline] fire_sched_out_preempt_notifiers kernel/sched/core.c:3930 [inline] prepare_task_switch kernel/sched/core.c:4126 [inline] context_switch kernel/sched/core.c:4274 [inline] __schedule+0xfd0/0x21b0 kernel/sched/core.c:5073 preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:5530 irqentry_exit_cond_resched kernel/entry/common.c:392 [inline] irqentry_exit_cond_resched kernel/entry/common.c:384 [inline] irqentry_exit+0x7a/0xa0 kernel/entry/common.c:428 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:632 __vmcs_writel arch/x86/kvm/vmx/vmx_ops.h:176 [inline] vmcs_write16 arch/x86/kvm/vmx/vmx_ops.h:185 [inline] seg_setup+0x66/0x2a0 arch/x86/kvm/vmx/vmx.c:3633 vmx_vcpu_reset+0x20a/0xee0 arch/x86/kvm/vmx/vmx.c:4455 kvm_arch_vcpu_create+0x765/0xbb0 arch/x86/kvm/x86.c:10152 kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:3201 [inline] kvm_vm_ioctl+0x1702/0x2800 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3839 kvm_vm_compat_ioctl+0x125/0x230 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4052 __do_compat_sys_ioctl+0x1d3/0x230 fs/ioctl.c:842 do_syscall_32_irqs_on arch/x86/entry/common.c:77 [inline] __do_fast_syscall_32+0x56/0x90 arch/x86/entry/common.c:140 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:165 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c the dependencies between the lock to be acquired and HARDIRQ-irq-unsafe lock: -> (&kvm->arch.pvclock_gtod_sync_lock){+.+.}-{2:2} { HARDIRQ-ON-W at: lock_acquire kernel/locking/lockdep.c:5510 [inline] lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5475 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:354 [inline] kvm_synchronize_tsc+0x459/0x1230 arch/x86/kvm/x86.c:2332 kvm_arch_vcpu_postcreate+0x73/0x180 arch/x86/kvm/x86.c:10183 kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:3239 [inline] kvm_vm_ioctl+0x1b2d/0x2800 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3839 kvm_vm_compat_ioctl+0x125/0x230 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4052 __do_compat_sys_ioctl+0x1d3/0x230 fs/ioctl.c:842 do_syscall_32_irqs_on arch/x86/entry/common.c:77 [inline] __do_fast_syscall_32+0x56/0x90 arch/x86/entry/common.c:140 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:165 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c SOFTIRQ-ON-W at: lock_acquire kernel/locking/lockdep.c:5510 [inline] lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5475 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:354 [inline] kvm_synchronize_tsc+0x459/0x1230 arch/x86/kvm/x86.c:2332 kvm_arch_vcpu_postcreate+0x73/0x180 arch/x86/kvm/x86.c:10183 kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:3239 [inline] kvm_vm_ioctl+0x1b2d/0x2800 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3839 kvm_vm_compat_ioctl+0x125/0x230 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4052 __do_compat_sys_ioctl+0x1d3/0x230 fs/ioctl.c:842 do_syscall_32_irqs_on arch/x86/entry/common.c:77 [inline] __do_fast_syscall_32+0x56/0x90 arch/x86/entry/common.c:140 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:165 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c INITIAL USE at: lock_acquire kernel/locking/lockdep.c:5510 [inline] lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5475 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:354 [inline] kvm_synchronize_tsc+0x459/0x1230 arch/x86/kvm/x86.c:2332 kvm_arch_vcpu_postcreate+0x73/0x180 arch/x86/kvm/x86.c:10183 kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:3239 [inline] kvm_vm_ioctl+0x1b2d/0x2800 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3839 kvm_vm_compat_ioctl+0x125/0x230 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4052 __do_compat_sys_ioctl+0x1d3/0x230 fs/ioctl.c:842 do_syscall_32_irqs_on arch/x86/entry/common.c:77 [inline] __do_fast_syscall_32+0x56/0x90 arch/x86/entry/common.c:140 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:165 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c } ... key at: [<ffffffff8f371000>] __key.4+0x0/0x40 ... acquired at: lock_acquire kernel/locking/lockdep.c:5510 [inline] lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5475 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:354 [inline] get_kvmclock_ns+0x25/0x390 arch/x86/kvm/x86.c:2587 kvm_xen_update_runstate+0x3d/0x2c0 arch/x86/kvm/xen.c:69 kvm_xen_update_runstate_guest+0x74/0x320 arch/x86/kvm/xen.c:100 kvm_xen_runstate_set_preempted arch/x86/kvm/xen.h:96 [inline] kvm_arch_vcpu_put+0x2d8/0x5a0 arch/x86/kvm/x86.c:4062 kvm_sched_out+0xbf/0x100 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4876 __fire_sched_out_preempt_notifiers kernel/sched/core.c:3922 [inline] fire_sched_out_preempt_notifiers kernel/sched/core.c:3930 [inline] prepare_task_switch kernel/sched/core.c:4126 [inline] context_switch kernel/sched/core.c:4274 [inline] __schedule+0xfd0/0x21b0 kernel/sched/core.c:5073 preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:5530 irqentry_exit_cond_resched kernel/entry/common.c:392 [inline] irqentry_exit_cond_resched kernel/entry/common.c:384 [inline] irqentry_exit+0x7a/0xa0 kernel/entry/common.c:428 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:632 __vmcs_writel arch/x86/kvm/vmx/vmx_ops.h:176 [inline] vmcs_write16 arch/x86/kvm/vmx/vmx_ops.h:185 [inline] seg_setup+0x66/0x2a0 arch/x86/kvm/vmx/vmx.c:3633 vmx_vcpu_reset+0x20a/0xee0 arch/x86/kvm/vmx/vmx.c:4455 kvm_arch_vcpu_create+0x765/0xbb0 arch/x86/kvm/x86.c:10152 kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:3201 [inline] kvm_vm_ioctl+0x1702/0x2800 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3839 kvm_vm_compat_ioctl+0x125/0x230 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4052 __do_compat_sys_ioctl+0x1d3/0x230 fs/ioctl.c:842 do_syscall_32_irqs_on arch/x86/entry/common.c:77 [inline] __do_fast_syscall_32+0x56/0x90 arch/x86/entry/common.c:140 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:165 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c stack backtrace: CPU: 1 PID: 8435 Comm: syz-executor030 Not tainted 5.12.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x141/0x1d7 lib/dump_stack.c:120 print_bad_irq_dependency kernel/locking/lockdep.c:2460 [inline] check_irq_usage.cold+0x50d/0x744 kernel/locking/lockdep.c:2689 check_prev_add kernel/locking/lockdep.c:2940 [inline] check_prevs_add kernel/locking/lockdep.c:3059 [inline] validate_chain kernel/locking/lockdep.c:3674 [inline] __lock_acquire+0x2b2c/0x54c0 kernel/locking/lockdep.c:4900 lock_acquire kernel/locking/lockdep.c:5510 [inline] lock_acquire+0x1ab/0x740 kernel/locking/lockdep.c:5475 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:354 [inline] get_kvmclock_ns+0x25/0x390 arch/x86/kvm/x86.c:2587 kvm_xen_update_runstate+0x3d/0x2c0 arch/x86/kvm/xen.c:69 kvm_xen_update_runstate_guest+0x74/0x320 arch/x86/kvm/xen.c:100 kvm_xen_runstate_set_preempted arch/x86/kvm/xen.h:96 [inline] kvm_arch_vcpu_put+0x2d8/0x5a0 arch/x86/kvm/x86.c:4062 kvm_sched_out+0xbf/0x100 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4876 __fire_sched_out_preempt_notifiers kernel/sched/core.c:3922 [inline] fire_sched_out_preempt_notifiers kernel/sched/core.c:3930 [inline] prepare_task_switch kernel/sched/core.c:4126 [inline] context_switch kernel/sched/core.c:4274 [inline] __schedule+0xfd0/0x21b0 kernel/sched/core.c:5073 preempt_schedule_irq+0x4e/0x90 kernel/sched/core.c:5530 irqentry_exit_cond_resched kernel/entry/common.c:392 [inline] irqentry_exit_cond_resched kernel/entry/common.c:384 [inline] irqentry_exit+0x7a/0xa0 kernel/entry/common.c:428 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:632 RIP: 0010:__vmcs_writel arch/x86/kvm/vmx/vmx_ops.h:176 [inline] RIP: 0010:vmcs_write16 arch/x86/kvm/vmx/vmx_ops.h:185 [inline] RIP: 0010:seg_setup+0x66/0x2a0 arch/x86/kvm/vmx/vmx.c:3633 Code: 84 c0 74 08 3c 03 0f 8e 32 02 00 00 48 89 d8 48 c1 e0 04 44 8b a0 80 72 64 89 0f 1f 44 00 00 e8 d0 31 56 00 31 c0 44 0f 79 e0 <2e> 0f 86 db 01 00 00 e8 be 31 56 00 e8 b9 31 56 00 48 89 df 48 b8 RSP: 0018:ffffc9000183f988 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff88801ba39c40 RSI: ffffffff811db9b0 RDI: ffffffff89647280 RBP: 0000000000000000 R08: 0000000000000001 R09: ffffc90001a2a16b R10: ffffffff811dba9b R11: 0000000000000000 R12: 0000000000000800 R13: 1ffff92000307f35 R14: ffff88801755e170 R15: 0000000000000040 vmx_vcpu_reset+0x20a/0xee0 arch/x86/kvm/vmx/vmx.c:4455 kvm_arch_vcpu_create+0x765/0xbb0 arch/x86/kvm/x86.c:10152 kvm_vm_ioctl_create_vcpu arch/x86/kvm/../../../virt/kvm/kvm_main.c:3201 [inline] kvm_vm_ioctl+0x1702/0x2800 arch/x86/kvm/../../../virt/kvm/kvm_main.c:3839 kvm_vm_compat_ioctl+0x125/0x230 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4052 __do_compat_sys_ioctl+0x1d3/0x230 fs/ioctl.c:842 do_syscall_32_irqs_on arch/x86/entry/common.c:77 [inline] __do_fast_syscall_32+0x56/0x90 arch/x86/entry/common.c:140 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:165 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf7f50549 Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000ffce641c EFLAGS: 00000217 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000000ae41 RDX: 0000000000000000 RSI: 0000000000000036 RDI: 0000000000000004 RBP: 000000004038ae7a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2021/03/20 17:46 | upstream | 1c273e10bc0c | 17810eae | .config | console log | report | syz | C | ci-upstream-kasan-gce-386 | possible deadlock in scheduler_tick | ||
2021/04/02 02:08 | upstream | ffd9fb546d49 | 6a81331a | .config | console log | report | info | ci-upstream-kasan-gce | possible deadlock in scheduler_tick | |||
2021/04/01 20:13 | upstream | ffd9fb546d49 | 6a81331a | .config | console log | report | info | ci-upstream-kasan-gce | possible deadlock in scheduler_tick | |||
2021/04/01 19:12 | upstream | ffd9fb546d49 | 6a81331a | .config | console log | report | info | ci-upstream-kasan-gce | possible deadlock in scheduler_tick | |||
2021/04/01 05:49 | upstream | d19cc4bfbff1 | 6a81331a | .config | console log | report | info | ci-upstream-kasan-gce | possible deadlock in scheduler_tick | |||
2021/04/01 04:11 | upstream | d19cc4bfbff1 | 6a81331a | .config | console log | report | info | ci-upstream-kasan-gce | possible deadlock in scheduler_tick | |||
2021/03/31 20:32 | upstream | 5e46d1b78a03 | 6a81331a | .config | console log | report | info | ci-upstream-kasan-gce | possible deadlock in scheduler_tick | |||
2021/03/31 13:37 | upstream | 5e46d1b78a03 | 6a81331a | .config | console log | report | info | ci-upstream-kasan-gce | possible deadlock in scheduler_tick | |||
2021/03/31 12:15 | upstream | 5e46d1b78a03 | 6a81331a | .config | console log | report | info | ci-upstream-kasan-gce | possible deadlock in scheduler_tick | |||
2021/03/31 10:14 | upstream | 2bb25b3a748a | 6a81331a | .config | console log | report | info | ci-upstream-kasan-gce | possible deadlock in scheduler_tick | |||
2021/03/31 08:43 | upstream | 2bb25b3a748a | 6a81331a | .config | console log | report | info | ci-upstream-kasan-gce | possible deadlock in scheduler_tick | |||
2021/03/30 07:46 | upstream | 1e43c377a79f | 6a81331a | .config | console log | report | info | ci-upstream-kasan-gce | possible deadlock in scheduler_tick | |||
2021/03/29 20:57 | upstream | 1e43c377a79f | 6a81331a | .config | console log | report | info | ci-upstream-kasan-gce | possible deadlock in scheduler_tick | |||
2021/03/29 14:01 | upstream | a5e13c6df0e4 | a8529b82 | .config | console log | report | info | ci-upstream-kasan-gce | possible deadlock in scheduler_tick | |||
2021/03/29 04:44 | upstream | 81b1d39fd39a | a8529b82 | .config | console log | report | info | ci-upstream-kasan-gce-selinux-root | possible deadlock in scheduler_tick | |||
2021/03/26 19:25 | upstream | db24726bfefa | a8529b82 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | possible deadlock in scheduler_tick | |||
2021/03/26 17:40 | upstream | db24726bfefa | a8529b82 | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | possible deadlock in scheduler_tick | |||
2021/03/26 11:05 | upstream | db24726bfefa | 6a383ecf | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | possible deadlock in scheduler_tick | |||
2021/03/25 19:46 | upstream | e138138003eb | 6a383ecf | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | possible deadlock in scheduler_tick | |||
2021/03/25 18:42 | upstream | e138138003eb | 6a383ecf | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | possible deadlock in scheduler_tick | |||
2021/03/24 20:53 | upstream | 4ee998b0ef8b | 607e3baf | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | possible deadlock in scheduler_tick | |||
2021/03/24 18:09 | upstream | 7acac4b3196c | 607e3baf | .config | console log | report | info | ci-upstream-kasan-gce | possible deadlock in scheduler_tick | |||
2021/03/24 15:20 | upstream | 7acac4b3196c | 607e3baf | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | possible deadlock in scheduler_tick | |||
2021/03/23 20:30 | upstream | 7acac4b3196c | e613994b | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | possible deadlock in scheduler_tick | |||
2021/03/23 18:12 | upstream | 7acac4b3196c | e613994b | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | possible deadlock in scheduler_tick | |||
2021/03/23 17:01 | upstream | 84196390620a | e613994b | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | possible deadlock in scheduler_tick | |||
2021/03/23 16:05 | upstream | 84196390620a | e613994b | .config | console log | report | info | ci-upstream-kasan-gce-smack-root | possible deadlock in scheduler_tick | |||
2021/03/23 02:04 | upstream | 84196390620a | 8092f30d | .config | console log | report | info | ci-upstream-kasan-gce | possible deadlock in scheduler_tick | |||
2021/03/23 01:06 | upstream | 84196390620a | 8092f30d | .config | console log | report | info | ci-upstream-kasan-gce-selinux-root | possible deadlock in scheduler_tick | |||
2021/03/20 06:40 | upstream | 1c273e10bc0c | 3d01c4de | .config | console log | report | info | ci-upstream-kasan-gce | possible deadlock in scheduler_tick | |||
2021/03/31 15:36 | upstream | 5e46d1b78a03 | 6a81331a | .config | console log | report | info | ci-upstream-kasan-gce-386 | possible deadlock in scheduler_tick | |||
2021/03/30 22:34 | upstream | 2bb25b3a748a | 6a81331a | .config | console log | report | info | ci-upstream-kasan-gce-386 | possible deadlock in scheduler_tick | |||
2021/03/29 23:06 | upstream | 1e43c377a79f | 6a81331a | .config | console log | report | info | ci-upstream-kasan-gce-386 | possible deadlock in scheduler_tick | |||
2021/03/29 16:24 | upstream | a5e13c6df0e4 | a8529b82 | .config | console log | report | info | ci-upstream-kasan-gce-386 | possible deadlock in scheduler_tick | |||
2021/03/29 01:19 | upstream | 36a14638f7c0 | a8529b82 | .config | console log | report | info | ci-upstream-kasan-gce-386 | possible deadlock in scheduler_tick | |||
2021/03/28 22:37 | upstream | 36a14638f7c0 | a8529b82 | .config | console log | report | info | ci-upstream-kasan-gce-386 | possible deadlock in scheduler_tick | |||
2021/03/27 10:42 | upstream | 0f4498cef9f5 | a8529b82 | .config | console log | report | info | ci-upstream-kasan-gce-386 | possible deadlock in scheduler_tick | |||
2021/03/27 09:17 | upstream | 0f4498cef9f5 | a8529b82 | .config | console log | report | info | ci-upstream-kasan-gce-386 | possible deadlock in scheduler_tick | |||
2021/03/26 15:28 | upstream | db24726bfefa | a8529b82 | .config | console log | report | info | ci-upstream-kasan-gce-386 | possible deadlock in scheduler_tick | |||
2021/03/26 10:21 | upstream | db24726bfefa | 6a383ecf | .config | console log | report | info | ci-upstream-kasan-gce-386 | possible deadlock in scheduler_tick | |||
2021/03/26 09:16 | upstream | db24726bfefa | 6a383ecf | .config | console log | report | info | ci-upstream-kasan-gce-386 | possible deadlock in scheduler_tick | |||
2021/03/26 08:09 | upstream | db24726bfefa | 6a383ecf | .config | console log | report | info | ci-upstream-kasan-gce-386 | possible deadlock in scheduler_tick | |||
2021/03/25 21:05 | upstream | e138138003eb | 6a383ecf | .config | console log | report | info | ci-upstream-kasan-gce-386 | possible deadlock in scheduler_tick | |||
2021/03/25 09:56 | upstream | 4ee998b0ef8b | 607e3baf | .config | console log | report | info | ci-upstream-kasan-gce-386 | possible deadlock in scheduler_tick | |||
2021/03/25 00:47 | upstream | 4ee998b0ef8b | 607e3baf | .config | console log | report | info | ci-upstream-kasan-gce-386 | possible deadlock in scheduler_tick | |||
2021/03/23 22:51 | upstream | 7acac4b3196c | e613994b | .config | console log | report | info | ci-upstream-kasan-gce-386 | possible deadlock in scheduler_tick | |||
2021/03/23 21:49 | upstream | 7acac4b3196c | e613994b | .config | console log | report | info | ci-upstream-kasan-gce-386 | possible deadlock in scheduler_tick | |||
2021/03/23 21:27 | upstream | 7acac4b3196c | e613994b | .config | console log | report | info | ci-upstream-kasan-gce-386 | possible deadlock in scheduler_tick | |||
2021/03/23 16:49 | upstream | 84196390620a | e613994b | .config | console log | report | info | ci-upstream-kasan-gce-386 | possible deadlock in scheduler_tick | |||
2021/04/05 05:15 | linux-next | 454c576c3f5e | 6a81331a | .config | console log | report | info | ci-upstream-linux-next-kasan-gce-root | possible deadlock in scheduler_tick | |||
2021/03/25 07:43 | linux-next | 20f1b5f9c07c | 607e3baf | .config | console log | report | info | ci-upstream-linux-next-kasan-gce-root | possible deadlock in scheduler_tick |