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

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Date:	Thu, 17 Dec 2009 13:24:51 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Németh Márton <nm127@...email.hu>
Cc:	Mike Galbraith <efault@....de>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...e.hu>, netdev@...r.kernel.org,
	bugzilla-daemon@...zilla.kernel.org,
	bugme-daemon@...zilla.kernel.org
Subject: Re: [Bugme-new] [Bug 14794] New: IP address assigned by DHCP is
 dropped after ~40 seconds

On Thu, 17 Dec 2009 21:53:20 +0100
N__meth M__rton <nm127@...email.hu> 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 <efault@....de>
: 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?

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