diff options
Diffstat (limited to 'results/classifier/deepseek-r1:14b/reasoning/manual-review/950692')
| -rw-r--r-- | results/classifier/deepseek-r1:14b/reasoning/manual-review/950692 | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/results/classifier/deepseek-r1:14b/reasoning/manual-review/950692 b/results/classifier/deepseek-r1:14b/reasoning/manual-review/950692 new file mode 100644 index 000000000..28ca382d4 --- /dev/null +++ b/results/classifier/deepseek-r1:14b/reasoning/manual-review/950692 @@ -0,0 +1,27 @@ +<think> +Okay, let me try to figure out how to classify this bug report for QEMU. So, the user is reporting high CPU usage on the host machine when running KVM guests. They've provided details about multiple machines (A, B, C) with different configurations and behaviors. + +First, I'll read through the problem description again. Machine A works fine with an older kernel, but Machines B and C have varying degrees of high CPU usage issues. The user mentions that this isn't a problem with newer QEMU versions because they're using 1.0-r3 on all machines, so it's likely related to the host kernel. + +They tried different kernels, guest OSes, QEMU options, etc., but nothing worked except reverting Machine A to an older kernel. The issue seems consistent across various setups, which suggests it's a deeper problem, possibly in how KVM interacts with the host's CPU or scheduling. + +Looking at the categories provided: mistranslation, assembly lowering, device, graphic, socket, network, KVM, boot, vnc, debug, files, permissions, performance, kernel, peripherals, hypervisor, and others. The high CPU usage likely relates to how tasks are scheduled on the host, which is a kernel function. Alternatively, it could be an issue with KVM's interaction with the host's virtualization support. + +But since the problem started after updating the host kernel beyond 2.6.35, and they tried various QEMU versions without success, it seems more like a kernel-related issue rather than a bug in QEMU itself. The CPU usage spikes when the guest is active, which points towards how KVM handles scheduling or resource allocation on the host. + +Wait, but KVM is part of the Linux kernel since version 2.6.35? Or was it earlier? Regardless, if the issue started with newer kernels, maybe there's a regression in the host kernel's handling of KVM guests. The user tried tickless systems and high-resolution timers without success, so it's not about interrupt handling but more about CPU usage spikes. + +Another angle: could this be related to how QEMU schedules vCPUs or interacts with the hypervisor layer? But since the issue is present across multiple machines and only works on one with an older kernel, I think it's more about the host kernel's scheduling or KVM's performance under certain conditions. + +So, considering all this, the most appropriate category would be "kernel" because the problem seems to stem from changes in the host operating system's kernel, particularly how it handles KVM guests and CPU resource allocation. Alternatively, it could be classified as a "hypervisor" issue since KVM is a hypervisor, but given that the user points out it's related to host kernel versions, "kernel" might be more accurate. + +Wait, looking back at the possible categories: KVM is one of them. Since KVM is part of the kernel and interacts with the host's scheduler, maybe it's better to classify it under "KVM". But I'm a bit torn because it's the host kernel that's causing the problem. + +Hmm, but the user mentions that the issue persists across different QEMU versions, so it's not a bug in QEMU itself. The problem is more about how KVM is handled by the host kernel. Therefore, "kernel" might be better because it's an issue with the operating system's handling of KVM guests. + +Alternatively, since KVM is the technology used for virtualization here, perhaps it's better to classify it under "KVM". But I think in this context, it's more about the host kernel's behavior when running KVM. So, maybe "kernel" is the right category. +</think> + +The bug report describes high CPU usage on the host machine when running KVM guests, which appears to be related to changes in the host kernel version. The issue persists across different QEMU versions and guest configurations but resolves with an older kernel on one machine. This suggests the problem lies within the host kernel's handling of KVM guests. + +**Classification:** Kernel \ No newline at end of file |