https://bugzilla.kernel.org/show_bug.cgi?id=211109 Bug ID: 211109 Summary: Hard kernel freeze due to large cpu allocation. Product: Virtualization Version: unspecified Kernel Version: 5.9.9-95-tkg-MuQSS-llvm Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: kvm Assignee: virtualization_kvm@xxxxxxxxxxxxxxxxxxxx Reporter: vytautas.mickus.exc@xxxxxxxxx Regression: No Allocating a large amount of vcpu (30,31) on a system with 32 threads (16 core ryzen 3950x) causes hard freeze of the whole system. While 16-17 vcpu allocation is fine. This was seen while using minikube ``` minikube start --cni=calico --container-runtime=cri-o --cpus=$(($(nproc) - 1)) --driver=kvm2 -n 3 ``` Last journal entry is: ``` Jan 10 10:14:51 rig libvirtd[2269]: operation failed: domain 'minikube' already exists with uuid 4aacd29f-bd5f-418d-b267-42b79f75fbab ``` At which point minikube sees that the domain already exists and launches it. Hard freeze is immediate. OS: Linux rig 5.9.9-95-tkg-MuQSS-llvm #1 TKG SMP PREEMPT Sun, 22 Nov 2020 07:41:26 +0000 x86_64 GNU/Linux os-release: ``` NAME="Arch Linux" PRETTY_NAME="Arch Linux" ID=arch BUILD_ID=rolling ``` -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
