On 8 Aug 2020 at 9:44, Ed Greshko wrote: From: Ed Greshko <ed.greshko@xxxxxxxxxxx> Subject: Re: Missing a CPU after the 5.7 kernels?? To: users@xxxxxxxxxxxxxxxxxxxxxxx Date sent: Sat, 8 Aug 2020 09:44:02 +0800 Send reply to: Community support for Fedora users <users@xxxxxxxxxxxxxxxxxxxxxxx> > On 2020-08-08 09:09, Michael D. Setzer II via users wrote: > > Have a old quad core system that I've had since Fedora 10 I believe. > > Recently, upgraded to Fedora 31, and it was still seeing all 4 cores. > > > > Run BOINC, and recently notice that it was only showing 3 cpus > > running? Machine is one of the 5 computers I have at house, but is > > headless and access remotely via VNC. Other systems all show the right > > number of cpus after updates, so not sure what might cause the issue. > > The results of lshw-gui shows the 4 cores, but the dmesg shows only > > CPU 0 - 2. Didn't notice this until the 5.7 kernel change, but not sure > > exactly which update caused the change. > > While it is headless, would there be any chance of booting a live-image to run a 5.6 kernel > to verify that and older kernel still detects 4? > Hooked up a monitor, keyboard, and mouse onto system, and rebooted it. Unfortunately all of the current kernels where 5.7 version? Went into advanced options, and found that somehow the CPU settings for cores was set to manual and the cpu 3 was set to Off?? Machine hasn't had a keyboard setup on it for some time, so no clue how it got set to manual, and why cpu 3 would have been set to off. The bios was showing that it supports 6 cpus, and all where set to on except #3? But CPU in machine is just a quad. Set it to automatic, and rebooted. It then showed the 4 cores running, and it is not showing that BOINC is running 4 active processes.. So, no clue how the setting got changed?? Thanks. > -- > The key to getting good answers is to ask good questions. > _______________________________________________ > users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx > To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx > Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines > List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx +------------------------------------------------------------+ Michael D. Setzer II - Computer Science Instructor (Retired) mailto:mikes@xxxxxxxx mailto:msetzerii@xxxxxxxxx Guam - Where America's Day Begins G4L Disk Imaging Project maintainer http://sourceforge.net/projects/g4l/ +------------------------------------------------------------+ _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx
