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Re: BUG #2246: Bad malloc interactions: ecpg, openssl

From: Stephen Frost <sfrost(at)snowman(dot)net>
To: Andrew Klosterman <andrew5(at)ece(dot)cmu(dot)edu>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-bugs(at)postgresql(dot)org
Subject: Re: BUG #2246: Bad malloc interactions: ecpg, openssl
Date: 2006-02-14 02:25:30
Message-ID: 20060214022530.GV4474@ns.snowman.net (view raw or flat)
Thread:
Lists: pgsql-bugspgsql-patches
* Andrew Klosterman (andrew5(at)ece(dot)cmu(dot)edu) wrote:
> > Seems kind of unlikely...  What exact (.deb) versions of libpq and
> > Postgres are you using?  You originally posted w/ 8.1.0 but perhaps on
> > the client you had something more recent?
> 
> Running "aptitude show X" where "X" is the package name, and applying
> appropriate filtering gives the following results on my development
> systems:
> 
> Package: libpq-dev
> Version: 8.1.0-3
> 
> Package: libpq3
> Version: 1:7.4.9-2
> 
> Package: libpq4
> Version: 8.1.0-3
> 
> Package: postgresql-8.1
> Version: 8.1.0-3
> 
> Package: postgresql-contrib-8.1
> Version: 8.1.0-3
> 
> Package: postgresql-server-dev-8.1
> Version: 8.1.0-3
> 
> Package: postgresql-client-8.1
> Version: 8.1.0-3
> 
> Package: postgresql-common
> Version: 39

Hmm, alright, well, this is at least not the fault of the patch of mine
which was included in Debian's 8.1.2-2 Postgres release. :)  You might
try compiling some debs with debugging enabled.  This is (reasonably)
straight-forward:

(as root:)
aptitude install build-essential debhelper cdbs bison perl libperl-dev \
	tk8.4-dev flex libreadline5-dev libssl-dev zlib1g-dev \
	libpam0g-dev libxml2-dev libkrb5-dev libxslt1-dev python-dev \
	gettext bzip2 fakeroot
(as user:)
apt-get source postgresql-8.1
cd postgresql-8.1-8.1.0
export DEB_BUILD_OPTIONS="nostrip"
dpkg-buildpackage -uc -us -rfakeroot

Should produce .debs in the parent directory which have debugging
information.  Another useful build option is "noopt", ie:
export DEB_BUILD_OPTIONS="nostrip noopt", though that could make the
error go disappear.  It'd be terribly nice if you could do this and
provide a gdb backtrace with debugging... :)

	Thanks,

		Stephen

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