Re: Project Evil: The Evil Continues

From: Rudolf Cejka <cejkar_at_fit.vutbr.cz>
Date: Tue, 27 Jan 2004 17:03:39 +0100
Rudolf Cejka wrote (2004/01/27):
> > you have not provided a more precise means of duplicating the crash
> > (I can't do cvsup from home: I only have a dialup). Cvsup is not
> > a network diagnostic or traffic generation tool: it is not possible
> > to generate consistent, reproducible results with it. Use ttcp or
> > netperf instead, then show me _EXACTLY_ how you ran it to produce
> > the crash so I can do it too.
> 
> Ok, I do it. Now I have to go to lunch ;o) Do you have this or similar
> card too? The driver is bcmwl5.sys and it seems that it is shared
> among several cards.

Hmm, I'm trying to reproduce the panic with multiple parallel
nttcp/ttcp/netperf and dd, but still without any success. It seems
that the panic is very dependent on the network, cpu and/or disk load.
It occurs just in case, when cvsup is run with -P- argument, that is
there are two sockets for four independent communication channels,
two in and two out. If I run cvsup with -Pm, what means just one
multiplexed socket for all four channels, the panics disappear.

-- 
Rudolf Cejka <cejkar at fit.vutbr.cz> http://www.fit.vutbr.cz/~cejkar
Brno University of Technology, Faculty of Information Technology
Bozetechova 2, 612 66  Brno, Czech Republic
Received on Tue Jan 27 2004 - 07:04:21 UTC

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