update-manager crashed with SIGSEGV in DependsList()

[Smok]

nao sei que se passa nao da

ProblemType: Crash
DistroRelease: Ubuntu 12.04
Package: update-manager 1:0.154.6
ProcVersionSignature: Ubuntu 3.2.0-2.6-generic 3.2.0-rc3
Uname: Linux 3.2.0-2-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.90-0ubuntu1
Architecture: amd64
CrashCounter: 1
Date: Fri Dec 2 13:34:58 2011
ExecutablePath: /usr/bin/update-manager
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20111129.1)
InterpreterPath: /usr/bin/python2.7
PackageArchitecture: all
ProcCmdline: /usr/bin/python /usr/bin/update-manager
ProcEnviron:
 LANGUAGE=pt:pt_BR:en
 PATH=(custom, no user)
 LANG=pt_PT.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7fe0e22c5e9e <_ZN11pkgDepCache14UpdateVerStateEN8pkgCache11PkgIteratorE+174>: mov 0x18(%rax),%eax
 PC (0x7fe0e22c5e9e) ok
 source "0x18(%rax)" (0x00002018) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: update-manager
StacktraceTop:
 pkgDepCache::UpdateVerState(pkgCache::PkgIterator) () from /usr/lib/libapt-pkg.so.4.11
 pkgDepCache::Update(OpProgress*) () from /usr/lib/libapt-pkg.so.4.11
 pkgDepCache::Init(OpProgress*) () from /usr/lib/libapt-pkg.so.4.11
 pkgCacheFile::BuildDepCache(OpProgress*) () from /usr/lib/libapt-pkg.so.4.11
 pkgCacheFile::Open(OpProgress*, bool) () from /usr/lib/libapt-pkg.so.4.11
Title: update-manager crashed with SIGSEGV in pkgDepCache::UpdateVerState()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 DependsList (this=<optimized out>) at ../build/include/apt-pkg/cacheiterators.h:430
 pkgDepCache::UpdateVerState (this=0x1b05e70, Pkg=<optimized out>) at depcache.cc:646
 pkgDepCache::Update (this=0x1b05e70, Prog=0x7fff46f197c0) at depcache.cc:695
 pkgDepCache::Init (this=0x1b05e70, Prog=0x7fff46f197c0) at depcache.cc:158
 pkgCacheFile::BuildDepCache (this=0x1c7c4f0, Progress=0x7fff46f197c0) at cachefile.cc:140

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No security info. Marking public.
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