Re: TCP stalls in 2.0.33 and 2.1.x

Chris Wedgwood (cw@ix.net.nz)
Wed, 18 Mar 1998 11:29:13 +1200


Message-Id: <199803172159.IAA08910@vindaloo.atnf.CSIRO.AU>
From: Richard Gooch <rgooch@atnf.csiro.au>
To: linux-kernel@vger.rutgers.edu
Subject: Re: TCP stalls in 2.0.33 and 2.1.x

David S. Miller writes:
>
> send tcpdump dumps of the bug in the act or else I have no possible
> way to diagnose and fix the stalls

OK, I've got tcpdump_3.3.1a2-1.deb. I've made it suid-root, and I get:

% tcpdump
tcpdump: linux socket: Socket type not supported

Can some expert out there tell me what I'm supposed to do to get
tcpdump working?

I think older versions of tcpdump (well libpcap actually) use a depreciated
mechanism for raw packets. I think Craig Metz has a fixed libpcap on inner.

Are you building you kernel with `Packet Socket' support? Or if its a module
can try `modprobe af_packet' or add 'alias net-pf-17 af_packet' to
/etc/conf.modules before starting tcpdump.

-cw

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