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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