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Message #91468
[Bug 1471029] Lspci.txt
apport information
** Attachment added: "Lspci.txt"
https://bugs.launchpad.net/bugs/1471029/+attachment/4432283/+files/Lspci.txt
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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
---
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Jul 9 00:13 seq
crw-rw---- 1 root audio 116, 33 Jul 9 00:13 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.17.2-0ubuntu1.1
Architecture: i386
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/timer', '/dev/snd/seq'] failed with exit code 1:
CRDA: Error: [Errno 2] No such file or directory
DistroRelease: Ubuntu 15.04
Ec2AMI: ami-0000012b
Ec2AMIManifest: FIXME
Ec2AvailabilityZone: nz-por-1a
Ec2InstanceType: c1.c4r4
Ec2Kernel: aki-00000005
Ec2Ramdisk: ari-00000005
IwConfig: Error: [Errno 2] No such file or directory
Lsusb:
Bus 001 Device 002: ID 0627:0001 Adomax Technology Co., Ltd
Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: OpenStack Foundation OpenStack Nova
Package: linux (not installed)
PciMultimedia:
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-20-generic root=LABEL=cloudimg-rootfs ro console=tty1 console=ttyS0
ProcVersionSignature: User Name 3.19.0-20.20-generic 3.19.8
RelatedPackageVersions:
linux-restricted-modules-3.19.0-20-generic N/A
linux-backports-modules-3.19.0-20-generic N/A
linux-firmware N/A
RfKill: Error: [Errno 2] No such file or directory
Tags: vivid ec2-images
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
Uname: Linux 3.19.0-20-generic i686
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm audio cdrom dialout dip floppy netdev plugdev sudo video
_MarkForUpload: True
dmi.bios.date: 01/01/2011
dmi.bios.vendor: Bochs
dmi.bios.version: Bochs
dmi.chassis.type: 1
dmi.chassis.vendor: Bochs
dmi.modalias: dmi:bvnBochs:bvrBochs:bd01/01/2011:svnOpenStackFoundation:pnOpenStackNova:pvr99-2014.1.4:cvnBochs:ct1:cvr:
dmi.product.name: OpenStack Nova
dmi.product.version: 99-2014.1.4
dmi.sys.vendor: OpenStack Foundation
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References