netdev - Re: possible bug in tcp

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <p73ir46z34n.fsf@bingen.suse.de>
Date:	Tue, 13 Nov 2007 14:28:08 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Gavin McCullagh <Gavin.McCullagh@...m.ie>
Cc:	netdev@...r.kernel.org
Subject: Re: possible bug in tcp_probe

Gavin McCullagh <Gavin.McCullagh@...m.ie> writes:

> I'm using linux v2.6.22.6 and tcp_probe with a couple of small
> modifications[1]. 
>
> Even with moderately large numbers of flows (16 on the one machine) and
> increasingly as I monitor more flows than that, I get strange overflow
> problems such as this one:

You probably just need to increase the buffer (bufsize option to the 
module or tcp_probe.bufsize if compiled in) 

In general I think tcp_probe was always more intended a demo of how kprobes
could be used than a real production tool (with no offense to sch) 

-Andi

-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html