Subject: Re: [Bugme-new] [Bug 14794] New: IP address assigned by DHCP is dropped after ~40 seconds

From: Andrew Morton <[email-masked]>
Date: Thu, 17 Dec 2009 13:24:51 -0800

On Thu, 17 Dec 2009 21:53:20 +0100
N__meth M__rton <[email-masked]> wrote:

> Hi,
> 
> I bisected the problem, see http://bugzilla.kernel.org/show_bug.cgi?id=14794
> for details. Any idea what is the relation between this problem and the found
> patch?
> 

Please don't update this report via the bugillla interface.  See
"(switched to email.  Please respond via emailed reply-to-all, not via
the bugzilla web interface)."

: 61cbe54d9479ad98283b2dda686deae4c34b2d59 is the first bad commit
: commit 61cbe54d9479ad98283b2dda686deae4c34b2d59
: Author: Mike Galbraith <[email-masked]>
: Date:   Wed Sep 9 15:41:37 2009 +0200
:
:    sched: Keep kthreads at default priority

Strange.  Might be a timing thing bu a) I doubt if any kernel threads
are involved in maintaining a DHCP lease and b) even if they were, such
a race wouldn't be this repeatable.

Maybe it was a bisection glitch.  Did you try reverting just that
patch, see if it fixed things again?