netdev - Re: [Bugme-new] [Bug 30462] New: High cpu usage when someone sends many ipv6 udp packages

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Message-ID: <AANLkTimBqrZNSumjJN3riNk=+6Agtxn7KzujwkWZ35au@mail.gmail.com>
Date:	Mon, 7 Mar 2011 20:54:21 +0100
From:	Ernst Sjöstrand <ernstp@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	akpm@...ux-foundation.org, netdev@...r.kernel.org,
	bugzilla-daemon@...zilla.kernel.org,
	bugme-daemon@...zilla.kernel.org
Subject: Re: [Bugme-new] [Bug 30462] New: High cpu usage when someone sends
 many ipv6 udp packages

Hi,

seems like reverting "ipv6: Always clone offlink routes." fixes the issue.

Regards
//Ernst

2011/3/5 Ernst Sjöstrand <ernstp@...il.com>:
> I've only used precompiled kernels so far so I don't have stuff set up to
> compile kernels right now,
> probably won't have time to do that this weekend. Not tonight in GMT+1
> anyway!
>
> Regards
> //Ernst
>
> On Sat, Mar 5, 2011 at 02:21, David Miller <davem@...emloft.net> wrote:
>>
>> From: Andrew Morton <akpm@...ux-foundation.org>
>> Date: Fri, 4 Mar 2011 17:15:06 -0800
>>
>> >> The following ipv6 related changes were introduced between -rc2 and
>> >> -rc3 that I
>> >> can see. The "Revert 'administrative down' address handling changes."
>> >> looked
>> >> big...
>> >>       ipv6: Always clone offlink routes.
>> >>       ipv6: Revert 'administrative down' address handling changes.
>>
>> Can we narrow it down to which of those two changes introduced the
>> regression?
>>
>> We have another issue, still open, which is caused by the first
>> change, so maybe try reverting that one first.
>>
>> Thanks.
>
>
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