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Message #91464
[Bug 1471029] Missing required logs.
This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:
apport-collect 1471029
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1471029
Title:
ELF programs with R_386_RELATIVE blocks are badly mapped into memory
Status in libxslt package in Ubuntu:
Triaged
Status in linux package in Ubuntu:
Incomplete
Bug description:
Running the Samba autobuild tests on a 15.04 openstack image results
in a segfault in this command:
/usr/bin/xsltproc --nonet -o default/docs-xml/manpages/smb.conf.5
/home/ubuntu/autobuild/b22271/samba/docs-xml/xslt/man.xsl default
/docs-xml/manpages/smb.conf.5.xml
I reported this upstream as a bug in xsltproc, but it was found to be
impossible to reproduce using upstream source on the openstack
instance:
https://bugzilla.gnome.org/show_bug.cgi?id=751764
Comment 8 (https://bugzilla.gnome.org/show_bug.cgi?id=751764#c8) is
particularly informative.
The stack trace below shows the segfault actually occurs in libxml's
xpath evaluation functions. I see no difference between xpath.c in
upstream 2.9.2 and Ubuntu's version.
(gdb) bt 12
#0 0xb760f874 in xmlXPathCompOpEval (ctxt=0xba25d3e8, op=0xb86bc818) at ../../xpath.c:13606
#1 0xb760f82e in xmlXPathCompOpEval (ctxt=0xba25d3e8, op=0xb86bc890) at ../../xpath.c:13598
#2 0xb7610244 in xmlXPathCompOpEval (ctxt=0xba25d3e8, op=0xb86bc8b8) at ../../xpath.c:13529
#3 0xb760f9d6 in xmlXPathCompOpEval (ctxt=0xba25d3e8, op=0xb86bc8e0) at ../../xpath.c:13977
#4 0xb7612735 in xmlXPathCompOpEval (op=<optimized out>, ctxt=0xba25d3e8) at ../../xpath.c:14552
#5 xmlXPathRunEval (ctxt=0xba25d3e8, toBool=<optimized out>) at ../../xpath.c:14552
#6 0xb76171ed in xmlXPathCompiledEvalInternal (toBool=0, resObj=<synthetic pointer>, ctxt=<optimized out>, comp=<optimized out>) at ../../xpath.c:14915
#7 xmlXPathCompiledEval__internal_alias (comp=0xb866a948, ctx=0xb99bd308) at ../../xpath.c:14978
#8 0xb7787260 in xsltEvalVariable (ctxt=ctxt@entry=0xb9836560, variable=variable@entry=0xba25d3b0, castedComp=0xb86a4238) at ../../../libxslt/variables.c:903
#9 0xb778759a in xsltBuildVariable (ctxt=0xb9836560, castedComp=0xb86a4238, tree=0xb86a6978) at ../../../libxslt/variables.c:1759
#10 0xb7788bfa in xsltParseStylesheetCallerParam (ctxt=0xb86a6978, inst=0xb86a6978) at ../../../libxslt/variables.c:1975
#11 0xb779b9db in xsltCallTemplate (ctxt=0xb9836560, node=0xb85efed8, inst=0xb86a6880, castedComp=0xb86a4148) at ../../../libxslt/transform.c:4739
(More stack frames follow...)
(gdb) bt -5
#3311 0xb779a7de in xsltProcessOneNode (ctxt=0xb9836560, contextNode=0xb97586a0, withParams=0x0) at ../../../libxslt/transform.c:2097
#3312 0xb779d818 in xsltApplyStylesheetInternal (style=0xba25d3e8, style@entry=0xb85ee200, doc=0xb86bc7f0, doc@entry=0xb97586a0, params=0xb77ed340 <params>,
output=0xb85e13e0 "default/docs-xml/manpages/smb.conf.5", profile=0x0, userCtxt=0xb9836560) at ../../../libxslt/transform.c:6159
#3313 0xb779df8d in xsltRunStylesheetUser (style=0xb85ee200, doc=0xb97586a0, params=0xb77ed340 <params>, output=0xb85e13e0 "default/docs-xml/manpages/smb.conf.5", SAX=0x0, IObuf=0x0,
profile=0x0, userCtxt=0xb9836560) at ../../../libxslt/transform.c:6449
#3314 0xb77ea12c in xsltProcess (doc=0xb97586a0, cur=0xb85ee200, filename=0xbfd59812 "default/docs-xml/manpages/smb.conf.5.xml") at ../../../xsltproc/xsltproc.c:483
#3315 0xb77e9298 in main (argc=6, argv=0xbfd58f94) at ../../../xsltproc/xsltproc.c:903
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