Date: Wed, 2 Mar 2011 23:08:28 -0500 From: Wesley Shields <wxs@FreeBSD.org> To: Brandon Gooch <jamesbrandongooch@gmail.com> Cc: Bruce Cran <bruce@cran.org.uk>, freebsd-net@freebsd.org, Rui Paulo <rpaulo@freebsd.org> Subject: Re: Interface descriptions via pcap broken Message-ID: <20110303040828.GC48908@atarininja.org> In-Reply-To: <AANLkTi=WJSronjjNhBvR0k7iN=ZcAjTAV%2BR23rT_1127@mail.gmail.com> References: <1298961441.2888.2.camel@core.nessbank> <AANLkTik_JxT4G7SBsqEZYFvVDFJUFxzhmHaYj%2BrAN9P6@mail.gmail.com> <20110302194540.0000018f@unknown> <20110302215258.GA48643@atarininja.org> <AANLkTi=WJSronjjNhBvR0k7iN=ZcAjTAV%2BR23rT_1127@mail.gmail.com>
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On Wed, Mar 02, 2011 at 04:57:18PM -0600, Brandon Gooch wrote: > On Wed, Mar 2, 2011 at 3:52 PM, Wesley Shields <wxs@freebsd.org> wrote: > > On Wed, Mar 02, 2011 at 07:45:40PM +0000, Bruce Cran wrote: > >> On Wed, 2 Mar 2011 13:40:57 -0600 > >> Brandon Gooch <jamesbrandongooch@gmail.com> wrote: > >> > >> > BTW, if you give your devices descriptions, libpcap > >> > starts to behave again; this could be a clue to the source of the bug > >> > :/ > >> > >> 0xa5 is the malloc fill pattern when debugging is enabled, and > >> having recently reinstalled FreeBSD I forgot to create the malloc.conf > >> symlink. So something's reading from uninitialized memory. > > > > Does commit c65292b04b98d6a76d58c5a54ca8f81463bf24de in the libpcap git > > tree look like it could help? I haven't checked in detail but I think it > > might have never made it into a release yet? > > > > https://github.com/mcr/libpcap/commit/c65292b04b98d6a76d58c5a54ca8f81463bf24de > > > > -- WXS > > I applied the patch attached (diff'd against the code from the github > link above), rebuilt libpcap and wireshark, and the problem described > no longer exists. Thanks for looking at this wxs@! I've sent the patch along to someone with a src bit to commit. Hopefully it ends up in the tree soon... -- WXS
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