Since ACPI I do not understand anymore who takes decision in my PC. So you are saying that is not linux kernel but the bios that choose to powerdown cpus. Anyway I hope that linux kernel can overtake the bios because obviously it can take better decisions. BTW I am seeing in internet that the problem is very very big; I mean that almost all amd platforms may have this problem. I am suprised that noone before me informed kernel developers about it.
Thanks again, Mario 2013/2/25 Mike Galbraith <[email protected]>: > On Sun, 2013-02-24 at 22:59 +0100, Mario Giammarco wrote: > >> I have searched on internet and I see that is a problem common to >> several AMD platforms. >> Even in Microsoft Windows several people have the same problem and >> they solved it disabling cool&quiet on bios. It seems that some amd >> cpus on power saving cut off also HT bus blocking data from pcie bus >> (!?!) >> I have tried too and infact disabling cool&quiet improves a lot the problem. >> But I would like to find a better solution, can I disable cpu hotplug? >> Have you heard of this bug before? > > I haven't, but likely others have. Hm.. if BIOS is shutting down your > CPUs, I suspect that trying to ignore that in the kernel would be the > mother of all bad ideas :) > > -Mike > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
