[xml/sgml-pkgs] Bug#765567: xsltproc: bus error on some architectures

[Douglas Bagnall]

See later comments in https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1471029

The depth of recursion is not excessive, but the kernel is laying out
the memory in a way that squishes the stack into the heap.

This (from memory of tests I don't have right now) was fixed between 4.0 and 4.1.

Douglas

On Wed, 4 Jun 2014 22:27:03 +0200 Ivo De Decker <ivo.dedecker at ugent.be> wrote:
> package: xsltproc
> version: 1.1.28-2
> severity: important
> 
> Hi,
> 
> On some architectures (like i386), xsltproc fails with Bus error when running
> /usr/bin/xsltproc --nonet -o smb.conf.5 man.xsl smb.conf.5.tmp.xml
> with the attached version of man.xsl and smb.conf.5.tmp.xml.
> 
> This is done during the samba build. It fails on armel, armhf and i386, but
> doesn't fail on other architectures.
> 
> fail:
> 
> https://buildd.debian.org/status/fetch.php?pkg=samba&arch=armel&ver=2%3A4.1.7%2Bdfsg-2%2Bb1&stamp=1401742626
> https://buildd.debian.org/status/fetch.php?pkg=samba&arch=armhf&ver=2%3A4.1.7%2Bdfsg-2%2Bb1&stamp=1401738640
> https://buildd.debian.org/status/fetch.php?pkg=samba&arch=i386&ver=2%3A4.1.7%2Bdfsg-2%2Bb1&stamp=1401787651
> 
> ok:
> 
> https://buildd.debian.org/status/fetch.php?pkg=samba&arch=amd64&ver=2%3A4.1.7%2Bdfsg-2%2Bb1&stamp=1401735339
> 
> The failure happened for a binnmu. The previous build went fine:
> 
> https://buildd.debian.org/status/fetch.php?pkg=samba&arch=i386&ver=2%3A4.1.7%2Bdfsg-2&stamp=1397997714
> 
> I wasn't able to find a clear change between these builds which could explain
> why the failure happens now but didn't in the past (but there could be a
> change I overlooked).
> 
> 
> Cheers,
> 
> Ivo
>