Messages in this thread | | | Date | Mon, 15 Aug 2005 14:37:48 +0200 | From | Helge Hafting <> | Subject | Re: rc6 keeps hanging and blanking displays where rc4-mm1 works fine. |
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Linus Torvalds wrote:
>On Fri, 12 Aug 2005, Helge Hafting wrote: > > >>>at the moment. The setup is fine with 2.6.13-rc4-mm1 x86-64, no >>>problems there. >>> >>> >>The problem still exists in 2.6.13-rc6. Usually, all I get is a >>suddenly black display, solveable by resizing. >> >> > >Is there any chance you could try bisecting the problem? Either just >binary-searching the patches or by using the git bisect helper scripts? > >Obviously the git approach needs a "good" kernel in git, but if >2.6.13-rc4-mm1 is ok, then I assume that 2.6.13-rc4 is ok too? That's a >fair number of changes: > > git-rev-list v2.6.13-rc4..v2.6.13-rc6 | wc > 340 340 13940 > >but if you can tighten it up a bit (you already had trouble at rc5, I >think), it shouldn't require testing more than a few kernels. > >Git has had bisection support for a while, but the helper scripts to use >it sanely are fairly new, so I think you'd need the git-0.99.4 release for >those. But then you'd just do > > git bisect start > git bisect bad v2.6.13-rc5 > git bisect good v2.6.13-rc4 > >and start bisecting (that will check out a mid-way point automatically, >you build it, and then do "git bisect bad" or "git bisect good" depending >on whether the result is bad or good - it will continue to try to find >half-way points until it has found the point that turns from good to >bad..) > > Linus > > Ok, I have downlaoded git and started the first compile. Git will tell when the correct point is found (assuming I do the "git bisect bad/good" right), by itself?
Is there any way to make git tell exactly where between rc4 and rc5 each kernel is, so I can name the bzimages accordingly?
It takes some time to trigger the bug, so I could possibly end up with a falsely ok kernel. Is there a simple way to restart the search from that point, or will I have to start over with rc4 and rc5 and say git bisect good/bad until I reach the point of mistake?
Helge Hafting
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