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Diffstat (limited to 'results/classifier/mode-deepseek-r1:32b/reasoning/system/1509')
| -rw-r--r-- | results/classifier/mode-deepseek-r1:32b/reasoning/system/1509 | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/results/classifier/mode-deepseek-r1:32b/reasoning/system/1509 b/results/classifier/mode-deepseek-r1:32b/reasoning/system/1509 new file mode 100644 index 00000000..c39c5628 --- /dev/null +++ b/results/classifier/mode-deepseek-r1:32b/reasoning/system/1509 @@ -0,0 +1,17 @@ +<think> +Okay, so I need to classify this bug report as either 'user-mode' or 'system-mode'. Let me start by understanding the problem described. + +The issue is that when running a PPC64 guest OS using QEMU's TCG with an SMP spapr machine type, the guest OS (AIX in these examples) reports incorrect Entitled Capacity values. The Entitled Capacity doesn't match the number of vCPUs configured in QEMU. Instead, it's only a quarter of that value for each vCPU. For example, 1 vCPU gives 0.25 entitled capacity, 2 vCPUs give 0.50, and so on. Also, when more vCPUs are added beyond four, the Maximum Capacity is set to hundredths of a core, which seems to cause throttling. + +Looking at the provided examples from lparstat output, it's clear that the guest OS is interpreting the configuration in a way that doesn't align with what QEMU is setting. The user believes this issue stems from settings like MaxEntCap, DesProcs, and MaxPlatProcs within the spapr machine setup in QEMU. + +The user mentions that these values are affected by the -smp option passed to QEMU. They also compare this behavior to a real Power system where the entitled capacity is correctly reported as 6.00 with 12 vCPUs, indicating that the expected behavior should align more closely with real hardware. + +Now, considering whether this is a user-mode or system-mode issue: User-mode issues typically relate to software running in user space, like applications or non-privileged processes. System-mode issues involve lower-level components, such as the kernel, device drivers, or virtualization layers that require higher privileges. + +In this case, the problem is with how QEMU, which runs in user mode but handles system-level emulation (like CPU and peripherals), communicates configuration settings to the guest OS. Specifically, it's about how spapr machine types set up RTAS parameters, which are part of the hardware虚拟化层. This affects the guest's understanding of its resource entitlements. + +Therefore, this seems to be a system-mode issue because it involves low-level configurations and interactions between QEMU (as a hypervisor emulator) and the guest OS kernel. The incorrect settings lead to the guest miscalculating its entitled capacity, which is crucial for scheduling and performance. +</think> + +system \ No newline at end of file |