[21936] in bugtraq
Re: UDP packet handling weird behaviour of various operating systems
daemon@ATHENA.MIT.EDU (Jarno Huuskonen)
Fri Jul 27 13:41:58 2001
Date: Fri, 27 Jul 2001 15:36:36 +0300
From: Jarno Huuskonen <Jarno.Huuskonen@uku.fi>
To: bugtraq@securityfocus.com
Message-ID: <20010727153636.A109558@messi.uku.fi>
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In-Reply-To: <20010726015959.C31276@allianztiriac.ro>; from stefan@mail.allianztiriac.ro on Thu, Jul 26, 2001 at 01:59:59AM +0300
On Thu, Jul 26, Stefan Laudat wrote:
> Identical network cards for Win2k, Linux SMP and OpemBSD processor (Intel
> Pro 100). Linux was run on dual p3/1Ghz(SMP), Pentium2/400Mhz and P3/800Mhz
> (UP). Windows 2000 was run on p3/1Ghz UP. I've made tests with same results
> against Linux UP boxes running on Celeron/600 with 3com Vortex and realtek
> 8139 NICs. I've outlined that the result is the same no matter if you hit
> via 1Gbit or 100Mbit.
Could you test the pro100 adapter with the intel e100 driver with
cpu-saver enabled (insmod e100.o ucode=1) ? (Also playing around with
other parameters like IntDelay, BundleMax and Tx/RxDescriptors might
make a difference). The 'cpu-saver' option should limit the number of
interrupts the nic generates (this might help if the interrupts bring
the machine to halt) (read the e100 driver manual for more information).
-Jarno
--
Jarno Huuskonen <Jarno.Huuskonen@uku.fi>
