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From: souva@aibn55.astro.uni-bonn.de (Ignatios Souvatzis)
Subject: Re: un-freed mbuf in ip_output
In-Reply-To: jinmei@isl.rdc.toshiba.co.jp's message of 07 Oct 1996 18:03:52
+0900
Message-ID: <SOUVA.96Oct11202107@aibn55.astro.uni-bonn.de>
Sender: news@mpifr-bonn.mpg.de
Nntp-Posting-Host: aibn55
Reply-To: isouvatzis@astro.uni-bonn.de
Organization: Radioastronomisches Institut der Universitaet Bonn, Bonn, FRG
References: <52srh5$hip@monaco.csl.rdc.toshiba.co.jp> <Dyq3DE.59@world.std.com>
<531ovb$dnb@fido.asd.sgi.com> <53ah45$1o6@monaco.csl.rdc.toshiba.co.jp>
Date: Fri, 11 Oct 1996 18:21:07 GMT
Lines: 25
In article <53ah45$1o6@monaco.csl.rdc.toshiba.co.jp>
jinmei@isl.rdc.toshiba.co.jp (JINMEI Tatuya) writes:
>>>>> On 4 Oct 1996 01:23:55 GMT,
>>>>> bitbug@seal.engr.sgi.com (James Buster) said:
>> I believe m_freem() frees the whole mbuf list -- that is, the whole
>> packet -- not just the first mbuf. Go read m_freem().
> m_freem() does in fact free the whole mbuf chain. This doesn't
> help you, as extra mbuf in question is *prepended*, not appended,
> to the mbuf chain.
Thank you for supplying my poor explanation. As James said, the point
is that "m0" is not the *head* of the outgoing packet.
You are right (tested this on a NetBSD-1.2_BETA machine, and just
fixed it in NetBSD-current). The fix is to do a m_freem(m) instead of
m_freem(m0) at label bad:.
Regards,
Ignatios Souvatzis
--
MS-DOS is the worst text adventure game I have ever played: poor vocabulary,
weak parser and a boring storyline.