Messages in this thread | | | Date | Sat, 26 Apr 2008 17:37:41 +0200 | From | Gabriel C <> | Subject | Re: [git pull] x86 PAT changes |
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Ingo Molnar wrote: > * Gabriel C <nix.or.die@googlemail.com> wrote: > >> Hi Ingo, >> >> When using an 64bit ( didn't got time to test 32bit now ) kernel[1] >> with PAT enabled , kvm-intel does not work anymore. >> >> When modprobing kvm-intel , kvm is saying VT extension is disable by >> BIOS which isn't true. When disabling PAT again ( no changes to BIOS ) >> kvm-intel works again here. >> >> Is that an known problem ? > > no, that side-effect was not known. Cc:-ed more folks.
It seems like the update triggers some compiler bug.
Setting CC_OPTIMIZE_FOR_SIZE=n fixed that btw.
I don't have the time right now but later on today I will compile gcc43_svn_branch and test again with CC_OPTIMIZE_FOR_SIZE=y and see what I get.
Ingo sorry for the noise.
Gabriel
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