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: 832d, last: 805d
▶ ▼ 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 564d 628d 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 Syz repro C repro 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.