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authorChristian Krinitsin <mail@krinitsin.com>2025-07-03 07:27:52 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-07-03 07:27:52 +0000
commitd0c85e36e4de67af628d54e9ab577cc3fad7796a (patch)
treef8f784b0f04343b90516a338d6df81df3a85dfa2 /results/classifier/gemma3:12b/kvm/1693667
parent7f4364274750eb8cb39a3e7493132fca1c01232e (diff)
downloademulator-bug-study-d0c85e36e4de67af628d54e9ab577cc3fad7796a.tar.gz
emulator-bug-study-d0c85e36e4de67af628d54e9ab577cc3fad7796a.zip
add deepseek and gemma results
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+
+-cpu haswell / broadwell have no MONITOR in features1
+
+In qemu 2.9.0 if you run
+
+    qemu-system-x86_64 -cpu Broadwell (or Haswell)
+
+then the CPU features1 flag include the SSE3 bit, but do NOT include the MONITOR/MWAIT bit.  This is so even when the host includes the features.
+
+
+Additionally, running qemu in this manner results in several error messages:
+
+warning: TCG doesn't support requested feature: CPUID.01H:ECX.fma [bit 12]
+warning: TCG doesn't support requested feature: CPUID.01H:ECX.pcid [bit 17]
+warning: TCG doesn't support requested feature: CPUID.01H:ECX.x2apic [bit 21]
+warning: TCG doesn't support requested feature: CPUID.01H:ECX.tsc-deadline [bit 24]
+warning: TCG doesn't support requested feature: CPUID.01H:ECX.avx [bit 28]
+warning: TCG doesn't support requested feature: CPUID.01H:ECX.f16c [bit 29]
+warning: TCG doesn't support requested feature: CPUID.01H:ECX.rdrand [bit 30]
+warning: TCG doesn't support requested feature: CPUID.07H:EBX.hle [bit 4]
+warning: TCG doesn't support requested feature: CPUID.07H:EBX.avx2 [bit 5]
+warning: TCG doesn't support requested feature: CPUID.07H:EBX.invpcid [bit 10]
+warning: TCG doesn't support requested feature: CPUID.07H:EBX.rtm [bit 11]
+warning: TCG doesn't support requested feature: CPUID.07H:EBX.rdseed [bit 18]
+warning: TCG doesn't support requested feature: CPUID.80000001H:ECX.3dnowprefetch
+
+
+(Among possible other uses, the lack of the MONITOR feature bit causes NetBSD to fall-back on a
+check-and-pause loop while an application CPU is waiting to be told to proceed by the boot CPU.)
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