netdev - RE: [Bugme-new] [Bug 29712] New: Bonding Driver(version : 3.5.0) - Problem with ARP monitoring in active backup mode

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Message-ID: <E351E450E8B9F54684A699D42DC5ADF210062FA2@MPBAGVEX02.corp.mphasis.com>
Date:	Fri, 25 Feb 2011 18:14:32 +0530
From:	"Harsha R02" <Harsha.R02@...asis.com>
To:	"Brian Haley" <brian.haley@...com>,
	"Andrew Morton" <akpm@...ux-foundation.org>
Cc:	<bugzilla-daemon@...zilla.kernel.org>,
	<bugme-daemon@...zilla.kernel.org>, <netdev@...r.kernel.org>,
	"Jay Vosburgh" <fubar@...ibm.com>
Subject: RE: [Bugme-new] [Bug 29712] New: Bonding Driver(version : 3.5.0) - Problem with ARP monitoring in active backup mode

Attached patch resolves the issue. Failover happened back to primary
when it was up again in both the point to point and switch
configuration.

Please let us know if this change can be included.

Thanks,

- Harsha

-----Original Message-----
From: Brian Haley [mailto:brian.haley@...com] 
Sent: Friday, February 25, 2011 9:12 AM
To: Andrew Morton
Cc: Harsha R02; bugzilla-daemon@...zilla.kernel.org;
bugme-daemon@...zilla.kernel.org; netdev@...r.kernel.org; Jay Vosburgh
Subject: Re: [Bugme-new] [Bug 29712] New: Bonding Driver(version :
3.5.0) - Problem with ARP monitoring in active backup mode

On 02/24/2011 05:51 PM, Andrew Morton wrote:
> (switched to email.  Please respond via emailed reply-to-all, not via
the
> bugzilla web interface).
> 
> On Wed, 23 Feb 2011 10:41:34 GMT
> bugzilla-daemon@...zilla.kernel.org wrote:
> 
>> https://bugzilla.kernel.org/show_bug.cgi?id=29712
>>
>>            Summary: Bonding Driver(version : 3.5.0) - Problem with
ARP
>>                     monitoring in active backup mode
>>            Product: Drivers
>>            Version: 2.5
>>     Kernel Version: 2.6.32
> 
> That's a paleolithic kernel you have there.  This problem might have
> been fixed already.  Can you test a more recent kernel?

I can add some more info since I originally looked at the problem.  This
happens on 2.6.38 as well, and on this 2.6.32 kernel with a backported
3.7.0 bonding driver (with the primary_reselect option).  Harsha has a
prototype patch that's being tested, but wanted to log the bug to see
if one of the bonding maintainers had a better solution.

I'll let him respond as I'm now out of the loop...

Thanks,

-Brian

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Download attachment "bonding.patch" of type "application/octet-stream" (841 bytes)