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SubjectRe: [BUG] 2.6.23-rc3 can't see sd partitions on Alpha

* Bob Tracy <rct@frus.com> wrote:

> > I'm struggling to see how any of those could have broken block
> > device mounting on alpha. Are you sure you bisected right?
>
> Based on what's in that commit, it *does* appear something went wrong
> with bisection. If the implicated commit is the next one in time
> sequence relative to
>
> # good: [2f1f53bdc6531696934f6ee7bbdfa2ab4f4f62a3] CRISv10 fasttimer: Scrap INLINE and name timeval_cmp better
>
> then the test of whether I bisected correctly is as simple as applying
> the commit and seeing if things break, because I'm running on the
> kernel corresponding to 2f1f53bdc6531696934f6ee7bbdfa2ab4f4f62a3 right
> now. Let me give that a try and I'll report back. Worst case, I'll
> have to start over and write off the past four days...

generally it's easier to just go "back in time" and re-try the last
known "good" and last-known "bad" commit IDs to establish that they are
indeed correctly identified. if they are not then step back one more in
the bisection log. No need to spend another 4 days on this, if most of
the bisection is OK. You can replay a corrected git bisection log
quickly, by doing:

git-bisect reset
git-bisect < bisect.log

Ingo


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