linux-kernel - Re: help to bisect

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Message-ID: <20110518211723.GA4313@liondog.tnic>
Date:	Wed, 18 May 2011 23:17:23 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	James <bjlockie@...kie.ca>
Cc:	Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-wireless@...r.kernel.org
Subject: Re: help to bisect

First of all, please hit "reply-to-all" next time so that all recipients
can receive your mail and not find it by chance when looking thru the
new lkml messages.

On Wed, May 18, 2011 at 04:41:52PM -0400, James wrote:
> Here is what I did:
> 
> $ git clone git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-2.6.37.y.git
> $ cd linux-2.6.37.y
> $ git checkout v2.6.36
> build and boot kernel

what does that mean? Is .36 ok?

> $ cd linux-2.6.37.y
> $ git bisect start
> $ git bisect good v2.6.36
> $ git bisect bad v2.6.37.6

Also, is .37.6 bad?

> 
> build and boot kernel
> git bisect good|bad
> repeat
> 
> 3044100e58c84e133791c8b60a2f5bef69d732e4 is the first bad commit.

Which is a merge commit and it means that you most likely made a mistake
during bisection.

What is actually the problem you're experiencing with .37.6?

..

> How do I find out what change causes the problem?
> The problem causes my wireless card not to work.

Ah, here it is.

> Other people have similar cards that do work so the problem seems
> isolated to my hardware but kernel-2.6.36 works so I don't think my
> hardware is faulty.

Which card is that? (adding linux-wireless)

Please, describe in a very detailed way how your problem incarnates
itself: dmesg, error messages, what exactly do you do to trigger it?

Also, can you test whether 38.6 works for ya - it could've been fixed in
the meantime. You can also test .39 which will be released any minute
now.

I think that should be enough for now.

-- 
Regards/Gruss,
    Boris.
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