64-bit machine segfault on document.validate(schema) about libxml-ruby HOT 5 CLOSED

Hi Capt,

So this commit yesterday fixed a similar sounding issue:

59da46e

That was the only real change in 2.0.5. So just to verify, this was without a double using version 2.0.5 and not 2.0.4? Also it looks like it worked the first time you called doc.validate(dtd) but failed the second time?

Charlie

Charlie

from libxml-ruby.

Ok, I now see in the trace it was 2.0.5, so skip that.

What OS is this?

Charlie

from libxml-ruby.

Charlie,

What OS is this?

Linux, Fedora Core 13

bash-/~$ uname -a
Linux localhost.localdomain 2.6.34.8-68.fc13.x86_64 #1 SMP Thu Feb 17 15:03:58 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux

It doesn't happen on 32 bit architecture(s), with the exact same calling sequence.

And, on a 64-bit machine, it happens when I use document.validate(schema), and it's fine on the call to document.validate(dtd)

It sounds like a type misalignment, 32 bit versus 64 bit. The differing size of ints and pointers can collide.

HTH,

Captain Downer
Sea of Anarchy Yacht Club

On Thu, 5 May 2011 15:51:57 -0700
cfis [email protected] wrote:

Ok, I now see in the trace it was 2.0.5, so skip that.

What OS is this?

Charlie

Reply to this email directly or view it on GitHub:
#16 (comment)

from libxml-ruby.

Hi Captain Downer (quite a name),

I'm testing on a 64 bit box, Fedora 14.

Anyway, I see the issue. For schemas, use Document#validate_schema, not Document#validate. The validate method assumes that it is getting a DTD, not an xml schema.

So I think this is ok as-is...

from libxml-ruby.

Charlie,

Thanks for the tip. And thanks for your work on the XML stuff. It rocks!

I only stumbled on the 64 bit problem when I was running the code on the web site I referenced in the bug report. I've recently has a request to acquire some XML chops, so while I'm a coding veteran, some of this is new for me.

Document#validate_schema it is.

Steve Downie

aka Captain Downer
Sea of Anarchy Yacht Club

On Thu, 5 May 2011 18:49:38 -0700
cfis [email protected] wrote:

Hi Captain Downer (quite a name),

I'm testing on a 64 bit box, Fedora 14.

Anyway, I see the issue. For schemas, use Document#validate_schema, not Document#validate. The validate method assumes that it is getting a DTD, not an xml schema.

So I think this is ok as-is...

Reply to this email directly or view it on GitHub:
#16 (comment)

from libxml-ruby.