Bug 986161

Summary: When loading an xsd schema, receive "Schemas parser error : local complex type: The content model is not determinist" error
Product: Red Hat Enterprise Linux 5 Reporter: Grant Schoep <gschoep>
Component: libxml2Assignee: Daniel Veillard <veillard>
Status: CLOSED DUPLICATE QA Contact: qe-baseos-tools-bugs
Severity: medium Docs Contact:
Priority: unspecified    
Version: 5.9CC: gschoep, ohudlick
Target Milestone: rc   
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Hardware: x86_64   
OS: Linux   
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Last Closed: 2013-07-22 13:02:37 UTC Type: Bug
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And example xsd file to use with /usr/bin/xmllint to demo the problem none

Description Grant Schoep 2013-07-19 05:51:31 UTC 
Created attachment 775639 [details]
And example xsd file to use with /usr/bin/xmllint to demo the problem

When loading a xsd file for xml validation, I received the following message to STDERR.

example.xsd:4: element complexType: Schemas parser error : local complex type: The content model is not determinist.
WXS schema example.xsd failed to compile

NOTE: "example.xsd" file is the name of my xsd file I am using.

In the most recent RPM update to libxml2,  I've encountered a new problem which I believe is a regression. RPM info I am using...

rpm(cur)  : libxml2-2.6.26-2.1.21.el5_9.2
from      : https://rhn.redhat.com/errata/RHBA-2013-0591.html
rel. date : 2013-03-05

If I downgrade to libxml2-2.6.26-2.1.21.el5_9.1 the problem goes away.

I was seeing this in my libxml2 code, but can reproduce it with rpm provided /usr/bin/xmllint

I can reproduce this with a stripped down xsd file, see attached xsd file.

To reproduce, just run 
/usr/bin/xmllint --schema bad.xsd somefile.xml

You can have somefile.xml just be an empty file, the contents are unimportant. The error happens when it is trying to process the xsd file.

I see this on all RHEL 5.9 Server/Workstation machines that have the latest libxml2 RPM

libxml2-2.6.26-2.1.21.el5_9.2

For our critical operation machines, I had to downgrade to 

libxml2-2.6.26-2.1.21.el5_9.1
Comment 1 Daniel Veillard 2013-07-19 06:32:30 UTC 
I think it is a duplicate of
https://bugzilla.redhat.com/show_bug.cgi?id=922450

could you double check with the provided tests rpms at
ftp://xmlsoft.org/libxml2/test/

fix the issue you are seeing ?

  thanks,

Daniel
Comment 2 Grant Schoep 2013-07-21 01:53:30 UTC 
I don't have access to see the other bug. But, yes, I tried the rpm (libxml2-2.6.26-2.1.24.x86_64.rpm) from the link and it does fix the problem.

Thanks for the fix Daniel

-grant
Comment 3 Daniel Veillard 2013-07-22 13:02:37 UTC 
okidoc, it's a duplicate then !

  thanks for reporting back !

Daniel

*** This bug has been marked as a duplicate of bug 922450 ***