[ovirt-users] Re: [External] : cpu pinning validation failed - virtual cpu does not exist in vm

Hi, You disabled "Count Threads As Cores" so you need extra steps to identify which cores you can pin. You can check your CPU cores availability using the lscpu command, look: # lscpu | grep -e NUMA -e ^CPU\(s\) CPU(s): 72 NUMA node0 CPU(s): 0-17,36-53 NUMA node1 CPU(s): 18-35,54-71 The previous command lists physical cores and threads. The following command shows you logical cores running on a physical core: # grep -e "processor" -e "physical id" -e "core id" /proc/cpuinfo | grep -E -A1 -B1 "physical id.*0$" | grep -E -B 2 "core id.* 0$" processor : 0 <-- physical core 0 on socket 0 physical id : 0 core id : 0 -- processor : 36 <-- second thread on physical core 0 on socket 0 physical id : 0 core id : 0 I hope it can help you troubleshoot your scenario. Marcos *From:* parallax <dd432690(a)gmail.com&gt; *Sent:* Sunday, July 28, 2024 6:25 AM *To:* users <users(a)ovirt.org&gt; *Subject:* [External] : [ovirt-users] cpu pinning validation failed - virtual cpu does not exist in vm server with two Gold 6346 this message appears when trying pin any cores after 14 core: 16#16_17#17_18#18_19#19_20#20_21#21_22#22 "cpu pinning validation failed - virtual cpu does not exist in vm" "Count Threads As Cores" is disabled pinning cores from 9 to 15 goes well 0#0_1#1_2#2_3#3_4#4_5#5_6#6_7#7_8#8_9#9_10#10_11#11