synaptic crashed with SIGSEGV in debListParser::LoadReleaseInfo()

[John M]

Synaptic crashes right before finishing the Reload operation.

...:~$ lsb_release -rd && uname -rsvpm && apt-cache policy synaptic
Description: Ubuntu oneiric (development branch)
Release: 11.10
Linux 3.0.0-11-generic #18-Ubuntu SMP Tue Sep 13 23:38:01 UTC 2011 x86_64 x86_64
synaptic:
  Installed: 0.75.2ubuntu6
  Candidate: 0.75.2ubuntu6
  Version table:
 *** 0.75.2ubuntu6 0
        500 http://us.archive.ubuntu.com/ubuntu/ oneiric/universe amd64 Packages
        100 /var/lib/dpkg/status

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: synaptic 0.75.2ubuntu6
ProcVersionSignature: Ubuntu 3.0.0-11.18-generic 3.0.4
Uname: Linux 3.0.0-11-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.23-0ubuntu1
Architecture: amd64
Date: Fri Sep 23 16:15:57 2011
ExecutablePath: /usr/sbin/synaptic
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Beta amd64 (20110921.2)
ProcCmdline: /usr/sbin/synaptic
ProcEnviron:
 SHELL=/bin/bash
 LANG=en_US.UTF-8
 PATH=(custom, no user)
SegvAnalysis:
 Segfault happened at: 0x7f22b772a686 <_ZN13debListParser15LoadReleaseInfoERN8pkgCache15PkgFileIteratorER6FileFdSs+630>: mov %eax,(%r15)
 PC (0x7f22b772a686) ok
 source "%eax" ok
 destination "(%r15)" (0x7f22a5a3e180) not located in a known VMA region (needed writable region)!
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: synaptic
StacktraceTop:
 debListParser::LoadReleaseInfo(pkgCache::PkgFileIterator&, FileFd&, std::string) () from /usr/lib/libapt-pkg.so.4.11
 debPackagesIndex::Merge(pkgCacheGenerator&, OpProgress*) const () from /usr/lib/libapt-pkg.so.4.11
 ?? () from /usr/lib/libapt-pkg.so.4.11
 pkgCacheGenerator::MakeStatusCache(pkgSourceList&, OpProgress*, MMap**, bool) () from /usr/lib/libapt-pkg.so.4.11
 ?? ()
Title: synaptic crashed with SIGSEGV in debListParser::LoadReleaseInfo()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 debListParser::LoadReleaseInfo (this=0x7ffff1b6d220, FileI=..., File=<optimized out>, component=<optimized out>) at deb/deblistparser.cc:860
 debPackagesIndex::Merge (this=0x2ef6600, Gen=<optimized out>, Prog=<optimized out>) at deb/debindexfile.cc:342
 BuildCache (Gen=..., Progress=0x1c32eb0, CurrentSize=@0x7ffff1b6e280, TotalSize=84621143, Start=..., End=...) at pkgcachegen.cc:1067
 pkgCacheGenerator::MakeStatusCache (List=<optimized out>, Progress=0x1c32eb0, OutMap=0x0, AllowMem=88) at pkgcachegen.cc:1261
 RPackageCache::open (this=0x1923230, progress=..., locking=true) at rpackagecache.cc:66

[Robert Roth (evfool)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug #854090, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.