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| -rw-r--r-- | results/scraper/launchpad-without-comments/1788275 | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/results/scraper/launchpad-without-comments/1788275 b/results/scraper/launchpad-without-comments/1788275 new file mode 100644 index 00000000..88602450 --- /dev/null +++ b/results/scraper/launchpad-without-comments/1788275 @@ -0,0 +1,64 @@ +-cpu ...,+topoext works only with EPYC CPU model + +See bug report at: +https://bugzilla.redhat.com/show_bug.cgi?id=1615682 + +Probably this is caused by the inconsistent legacy cache information on all CPU models except EPYC. + +--------------------------------------------- +Description of problem: +Guest should get 2 threads per core and all of them should be on-line when booting guest with old amd cpu model + smt + +Steps to Reproduce: +1.Boot rhel7.6 guest with cli: +/usr/libexec/qemu-kvm -name rhel7.6 -m 16G -machine pc,accel=kvm \ + -S \ + -cpu Opteron_G3,+topoext,xlevel=0x8000001e,enforce \ + -smp 2,threads=2 \ + -monitor stdio \ + -qmp unix:/tmp/qmp2,server,nowait \ + -device VGA \ + -vnc :0 \ + -serial unix:/tmp/console2,server,nowait \ + -uuid 115e11b2-a869-41b5-91cd-6a32a907be7f \ + -drive file=rhel7.6-20180812.qcow2,if=none,id=drive-scsi-disk0,format=qcow2,cache=none,werror=stop,rerror=stop -device ide-hd,drive=drive-scsi-disk0,id=scsi-disk0 \ + -netdev tap,id=idinWyYY,vhost=on -device virtio-net-pci,mac=2e:39:fa:ff:88:a1,id=idlbq7eA,netdev=idinWyYY \ + +2.check cpu info inside guest +3. + +Actual results: +Guest gets one online cpu, one offline cpu and one thread per core: +# lscpu +lscpu +Architecture: x86_64 +CPU op-mode(s): 32-bit, 64-bit +Byte Order: Little Endian +CPU(s): 2 +On-line CPU(s) list: 0 +Off-line CPU(s) list: 1 +Thread(s) per core: 1 +Core(s) per socket: 1 +Socket(s): 1 +NUMA node(s): 1 +Vendor ID: AuthenticAMD +CPU family: 16 +Model: 2 +Model name: AMD Opteron 23xx (Gen 3 Class Opteron) +Stepping: 3 +CPU MHz: 2096.060 +BogoMIPS: 4192.12 +Hypervisor vendor: KVM +Virtualization type: full +L1d cache: 64K +L1i cache: 64K +L2 cache: 512K +L3 cache: 16384K +NUMA node0 CPU(s): 0 +Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx lm art rep_good nopl extd_apicid pni cx16 x2apic popcnt hypervisor lahf_lm cmp_legacy abm sse4a misalignsse topoext retpoline_amd ibp_disable vmmcall + + +Expected results: +Guest should get 2 threads per core and all of them should be on-line + +---------------------------------------------
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