Re: user-space command "ipcs" seems broken on 2.6.18.1

["Jesper Juhl" <jesper.juhl@gmail.com>]

On 30/10/06, Metathronius Galabant <m.galabant@googlemail.com> wrote:
> > Can you identify the latest kernel where it works OK?
>
> I can't reproduce that behaviour on another SMP machine with the same
> kernel-config for 2.6.18.1 (only storage and network device drivers
> differ).
> The affected one is a production machine I can't use to test, and
> furthermore the only one I've got of that series.
>
Ok, can you then at least tell us what the latest kernel you have used
that was OK was?
Just to try and narrow things down a bit.

> Has to wait until the weekend. Any remote clue so I know where to look?

Well, with a simple good/bad test case like you have, the obvious
thing to do would be to find a resonably new kernel that's good and
one that's bad and then do a git bisection search to find the exact
commit that broke things for you. Short of that, narrowing it down to
a released version, a -rc or -git snapshot is also good.

You could also start browsing through changelogs looking for changes
to IPC and then try revert patches that look likely. But  git bisect
is probably a lot easier.

-- 
Jesper Juhl <jesper.juhl@gmail.com>
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