On the other hand --- I just upgraded one of my CentOS7 systems to 3.10.0-1160.80.1 today. With that kernel it will not run any KVM guest. The system hangs - HARD - within one or two seconds of issuing the "virsh start ..." command. It hangs so hard that a power-off restart using the back panel switch is required. It does not log any error I can find, nor display any message about a kernel panic. Rebooting with 3.10.0-1160.76.1 works fine. The system is an older SuperMicro mainboard with a Q9400 processor. =============== Bill Gee On 11/16/22 12:38, Chris Schanzle via CentOS wrote: > On 11/15/22 7:50 PM, Petko Alov wrote: >>> >>> On 2022-11-08 15:49, Orion Poplawski wrote: >>> >>> On 11/8/22 13:12, Simon Matter wrote: >>> >>> Is anyone else experiencing trouble with >>> kernel-3.10.0-1160.80.1.el7.x86_64? >>> >>> I'm seeing a kernel panics in the kvm module on one of >>> our VM hosts with >>> >>> it. >>> >>> I did notice a new libvirt update as well, but it seems >>> to work fine with >>> >>> the >>> older kernel (.76.1). >>> >>> Where did you get the .80.1 kernel from? I'm a bit confused >>> because I can >>> >>> only see .76.1 on my systems. >>> >>> Simon >>> >>> I'm actually running Scientific Linux, which seems to be a little >>> ahead here. >>> Probably not related, but vmlinuz-4.18.0-372.32.1.el8_6.x86_64 >>> (AlmaLinux 8.6) had a kernel panic on a Intel Xeon E5504 processor, >>> but works fine on Xeon E56XX processors (5620 specifically in our >>> tests). * Believe from kernel version, the original email is for >>> Centos 7, possible the same change that went into the EL8 kernel went >>> also to EL7 Triggered right after I used virsh start to start the vm. >>> (Caused Black Screen, and reboot. Found this in the crashed kernel >>> logs on /var/crash) Works fine on >>> vmlinuz-4.18.0-372.26.1.el8_6.x86_64 and >>> vmlinuz-4.18.0-372.16.1.el8_6.x86_64 >> >> In fact, related - on our systems attempt to start qemu-kvm VM under >> kernel-3.10.0-1160.80.1.el7.x86_64 freezes any of 5 workstations with >> dual E5507 (all worked OK under kernel-3.10.0-1160.76.1.el7.x86_64 and >> any previous version). The workstations with E5-2609, E5-2650 or >> E5-2630 are not affected - all of them run qemu-kvm VM under >> kernel-3.10.0-1160.80.1.el7.x86_64 without problems. >> > > Thankfully, no problems with 2x Xeon E5-2667 v2 and CentOS 7.9 kernel > 3.10.0-1160.80.1.el7.x86_64. > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos