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Diffstat (limited to 'results/classifier/deepseek-2-tmp/reasoning/hypervisor/1739413')
| -rw-r--r-- | results/classifier/deepseek-2-tmp/reasoning/hypervisor/1739413 | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/results/classifier/deepseek-2-tmp/reasoning/hypervisor/1739413 b/results/classifier/deepseek-2-tmp/reasoning/hypervisor/1739413 new file mode 100644 index 000000000..e79bfa325 --- /dev/null +++ b/results/classifier/deepseek-2-tmp/reasoning/hypervisor/1739413 @@ -0,0 +1,24 @@ +<think> +Alright, so I'm trying to classify this bug report. Let's read through it carefully. + +The user is reporting an issue with QEMU when hotplugging a vCPU on a Power9 host running a Power8 compatible guest. They've gone through several steps: + +1. Booted the guest in Power8 compat mode. +2. Verified CPU info shows it's in Power8 mode. +3. Ran a program using a Power9 instruction, which correctly resulted in an illegal instruction error. +4. Hotplugged another vCPU and observed that when running the same program on the new vCPU, no error was thrown. + +So, the problem is that after hotplugging a vCPU, it's not respecting the CPU compatibility mode set for the guest. The new vCPU isn't enforcing Power8 instructions correctly. + +Looking at the possible categories: device, graphic, socket, network, KVM, boot, vnc, debug, files, permissions, performance, kernel, peripherals, hypervisor, and others like assembly or mistranslation. + +The issue is related to how the CPU mode is handled during hotplugging. Since it's about adding a new CPU (device) after the guest has started, it seems to involve device management within QEMU. Alternatively, it could be a problem with how KVM handles the CPU modes when adding new CPUs. + +But more specifically, since the issue arises from hotplugging and the vCPU not having the correct compatibility mode, it's likely related to how the hypervisor (KVM) manages the virtual CPUs' features. The hypervisor is responsible for setting up the VM environment, including CPU capabilities. + +Wait, but KVM itself might be correctly handling it; maybe QEMU isn't properly passing down the CPU flags when adding a new vCPU. So perhaps it's an issue with how QEMU configures the CPU modes when devices are added dynamically (hotplugged). Since this involves device addition and CPU configuration, the category 'hypervisor' seems appropriate because KVM is the hypervisor being used here. + +Alternatively, since it's about CPU compatibility during hotplug, which affects the guest's view of its hardware, perhaps 'device' would be more accurate. But given that KVM is the component managing this, I think 'hypervisor' is a better fit. +</think> + +hypervisor \ No newline at end of file |