[xml/sgml-pkgs] Bug#596013: Bug#596013: Bug#596013: Bug#596013: libxml2: claims to be out of memory when validating SVG with XSD

[Mike Hommey]

On Wed, Sep 08, 2010 at 06:48:18PM +0200, Mike Hommey wrote:
> On Wed, Sep 08, 2010 at 02:14:17PM +0000, brian m. carlson wrote:
> > On Wed, Sep 08, 2010 at 09:30:27AM +0200, Mike Hommey wrote:
> > > Works for me with that xsd and a random svg. A likely problem is that
> > > you run out of *stack* memory. Try fiddling with ulimit -s.
> > > Having your logo.svg file would be helpful to track down the problem,
> > > though.
> > 
> > Actually, I've determined that "xmllint /tmp/SVG.xsd" is sufficient to
> > trigger the problem.  I have the following limits set:
> > 
> >   lakeview ok % ulimit -a
> >   -t: cpu time (seconds)         unlimited
> >   -f: file size (blocks)         unlimited
> >   -d: data seg size (kbytes)     unlimited
> >   -s: stack size (kbytes)        unlimited
> >   -c: core file size (blocks)    0
> >   -m: resident set size (kbytes) 1048576
> >   -u: processes                  unlimited
> >   -n: file descriptors           1024
> >   -l: locked-in-memory size (kb) 64
> >   -v: address space (kb)         unlimited
> >   -x: file locks                 unlimited
> >   -i: pending signals            16382
> >   -q: bytes in POSIX msg queues  819200
> >   -e: max nice                   0
> >   -r: max rt priority            0
> > 
> > and I still have a problem.  I don't think the RSS value works with this
> > kernel, but even if it does, I don't think only 1 GiB is unreasonable
> > for RSS.
> > 
> > I can reproduce the problem consistently, so if there's something you'd
> > like me to do to test it, let me know.
> 
> I could reproduce with xmllint SVG.xsd. It turns out it doesn't like the
>     xmlns:xml CDATA #FIXED "http://www.w3.org/XML/1998/namespace"
> 
> declaration, and the error message is actually wrong.

Can you try the attached patch, from upstream?

Cheers,

Mike
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