INFO: task hung in kvm_vm_ioctl_create

INFO: task hung in kvm_vm_ioctl_create_vcpu

Status: auto-obsoleted due to no activity on 2024/09/16 19:41
Subsystems: kvm
[Documentation on labels]
First crash: 544d, last: 517d

▶ ▼ Similar bugs (1)

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	INFO: task hung in kvm_vm_ioctl_create_vcpu (2) kvm	1				2	276d	340d	0/29	auto-obsoleted due to no activity on 2025/05/16 03:45

Sample crash report:

INFO: task syz-executor.4:8335 blocked for more than 143 seconds.
      Not tainted 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4  state:D stack:27824 pid:8335  tgid:8332  ppid:7753   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0x17e8/0x4a20 kernel/sched/core.c:6745
 __schedule_loop kernel/sched/core.c:6822 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6837
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6894
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
 kvm_vm_ioctl_create_vcpu+0x5a/0x8f0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4212
 kvm_vm_ioctl+0x7e5/0xd30 arch/x86/kvm/../../../virt/kvm/kvm_main.c:5086

Crashes (3):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	VM info	Assets (help?)	Manager	Title
2024/06/18 19:37	upstream	2ccbdf43d5e7	639d6cdf	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce	INFO: task hung in kvm_vm_ioctl_create_vcpu
2024/06/01 23:56	upstream	cc8ed4d0a848	3113787f	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-smack-root	INFO: task hung in kvm_vm_ioctl_create_vcpu
2024/05/22 20:34	upstream	8f6a15f095a6	4d098039	.config	console log	report	info	[disk image] [vmlinux] [kernel image]	ci-upstream-kasan-gce-386	INFO: task hung in kvm_vm_ioctl_create_vcpu

* ~~Struck through~~ repros no longer work on HEAD.