On Seg, 2014-08-04 at 16:37 -0600, Chris Murphy wrote: > Starting with kernel 3.9, I get frequent messages "CPU5: Package temperature above threshold, cpu clock throttled" followed by "CPU5: Package temperature/speed normal" and occasionally: > > kernel: mce: [Hardware Error]: Machine check events logged > mcelog[581]: Hardware event. This is not a software error. > > This happens on three different Mac models, each running OS X and Fedora. They all get way hotter, run fans much faster, running Linux than OS X. I've had one of those models die inexplicably while it was exceptionally hot, but since it can't be booted at all now I can't say whether there's cause-effect or it's just coincidence. > > Since I'm down to just one Mac at the moment, I'm reluctant to do any further baremetal Linux testing until I better understand what these messages mean. > > https://bugzilla.redhat.com/show_bug.cgi?id=924570 ## my original bug on this from over a year ago > https://bugzilla.redhat.com/show_bug.cgi?id=1050106 ## recent bug that has different diagnostic info In 2006 mcelog has very useful to me because shows up that was an hardware problem and mcelog reports just happens when something is going really bad, like message says "hardware problem" software can't fix it. These problems should be reported upstream , reading the bug reports, cpu throttling and very hot computer could be an acpi problem , so http://vger.kernel.org/vger-lists.html#linux-acpi is where you could find some answers. Best regards, -- Sérgio M. B. -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
