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Re: 2.6.11 on AMD64 traps

To: netdev@xxxxxxxxxxx
Subject: Re: 2.6.11 on AMD64 traps
From: Michal Vanco <vanco@xxxxxxxx>
Date: Wed, 9 Mar 2005 22:17:00 +0100
Cc: Patrick McHardy <kaber@xxxxxxxxx>
In-reply-to: <422F6517.6070301@xxxxxxxxx>
Organization: Satro, s.r.o.
References: <200503081900.18686.vanco@xxxxxxxx> <200503092142.50027.vanco@xxxxxxxx> <422F6517.6070301@xxxxxxxxx>
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On Wednesday 09 March 2005 22:05, Patrick McHardy wrote:
> Michal Vanco wrote:
> > On Wednesday 09 March 2005 21:34, Patrick McHardy wrote:
> >>Yes, I know it is totally inefficient. Just use ip route, which doesn't
> >>suffer from this problem.
> >
> > Sure. Can (or will) this ever be fixed to any usable state also with
> > netstat? Is this problem related only to AMD64?
> Maybe. To start dumping entries of an open hashed hash-table at a
> specific position we need to skip all entries before that position by
> walking over them. This results in quadratic time complexity. It might
> be possible to improve this by cacheing the last position in
> fib_iter_state even between ->stop() and ->start() calls and using
> generation IDs for invalidation.

Ok. Thank's for help.


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