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authorChristian Krinitsin <mail@krinitsin.com>2025-06-30 12:34:26 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-06-30 12:35:44 +0000
commit25f8033d556aa17afaea4a5196ea7a69fe248320 (patch)
tree0f056db167683be54ea1e5e72d29d6069af55e7d /results/classifier/deepseek-2-tmp/reasoning/hypervisor/1921082
parent8e6da29e4ee5fc14bc1cc816a24f21271f14090d (diff)
downloademulator-bug-study-25f8033d556aa17afaea4a5196ea7a69fe248320.tar.gz
emulator-bug-study-25f8033d556aa17afaea4a5196ea7a69fe248320.zip
add new temporary deepseek-r1:14b results
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+<think>
+Okay, I'm trying to classify this bug report for QEMU into one of the given categories: mistranslation, assembly, other, device, graphic, socket, network, KVM, boot, vnc, debug, files, permissions, performance, kernel, peripherals, hypervisor.
+
+The bug report mentions a VM crash when processing a broadcast Machine Check Exception (MCE). The user is performing a memory stress test on the VM with 16 vCPUs. They inject an MCE to simulate hardware errors, which triggers the host's MCE and sends SIGBUS to the VM. QEMU then takes control and checks the broadcast attribute using cpu_x86_support_mca_broadcast().
+
+The issue arises because when QEMU injects MCE to all vCPUs simultaneously, it can't ensure that all vCPUs enter the MCE handler in sync, causing the VM to panic. The user suggests increasing monarch_timeout but notes it depends on vCPU count and system scheduling. They question why QEMU needs the broadcast attribute for MCE and if it's necessary to always signal all vCPUs.
+
+The core problem seems related to how QEMU handles MCE across multiple vCPUs, specifically in KVM virtualization. The bug involves QEMU's behavior when processing MCE events, which is a hypervisor feature since KVM runs under the host's kernel and requires proper handling of such exceptions.
+
+Looking at the categories, "hypervisor" fits because this issue pertains to how the hypervisor (KVM) manages machine check exceptions across virtual CPUs. It's not about assembly translation or performance but rather about the hypervisor's functionality in managing hardware exceptions in a VM environment.
+</think>
+
+hypervisor
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