linux-kernel - Re: PROBLEM: 2.6.19.1 Oops while doing Disk IO + playing sound, 2.6.20 too

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Message-ID: <87r6ssl3g4.fsf@fantasio.hh.de>
Date:	Thu, 15 Feb 2007 00:33:31 +0100
From:	Frank Hartmann <soundart@....net>
To:	Jan Kara <jack@...e.cz>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: PROBLEM: 2.6.19.1 Oops while doing Disk IO + playing sound, 2.6.20 too

Jan Kara <jack@...e.cz> writes:

>   Yes I see some correlation. Again it seems there is a problem with buffers
> attached to a page which got truncated but Private flag of the page stayed.
> It's probably not important but just out of curiosity - do you have
> CONFIG_LBD (large block device) set? I'd just like to verify that page_bufs
> was NULL when it was passed to walk_page_buffers().


fantasio:~/tmp/linux-2.6.20$ fgrep CONFIG_LBD .config
# CONFIG_LBD is not set


>   You said 2.6.17 worked for you, didn't you? How long does it take to
> reproduce the problem? If it is reasonably easy (e.g. a few hours), could
> you trace back when the problem started happening? If you could narrow that
> problem down to a single patch (using git-bisect), that would be great.

Yes I said that. At least I did not notice it happen:) 
Reproduction seems easy. So I will try. 

I have some problem: I am not sufficiently familar with git!

I found http://www.kernel.org/pub/software/scm/git/docs/howto/isolate-bugs-with-bisect.txt
Is this the way to do a git-bisect?

>From where do I get the 'labels' for good(2.6.17) and bad(2.6.20)?

regards
  Frank
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