aptitude-gtk crashed with SIGSEGV in pthread_mutex_lock()

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Binary package hint: aptitude

only crash

ProblemType: Crash
DistroRelease: Ubuntu 10.10
Package: aptitude-gtk 0.6.3-2ubuntu3
ProcVersionSignature: Ubuntu 2.6.35-19.25-generic 2.6.35.3
Uname: Linux 2.6.35-19-generic i686
Architecture: i386
Date: Wed Aug 25 19:24:19 2010
ExecutablePath: /usr/bin/aptitude-gtk
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Alpha i386 (20100803.1)
ProcCmdline: aptitude-gtk
ProcEnviron:
 PATH=(custom, no user)
 LANG=es_MX.utf8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x8f03bd <pthread_mutex_lock+29>: mov 0xc(%esi),%edi
 PC (0x008f03bd) ok
 source "0xc(%esi)" (0x00000108) not located in a known VMA region (needed readable region)!
 destination "%edi" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: aptitude
StacktraceTop:
 pthread_mutex_lock () from /lib/libpthread.so.0
 cwidget::threads::mutex::lock::acquire() ()
 ?? ()
 ?? ()
 ?? ()
Title: aptitude-gtk crashed with SIGSEGV in pthread_mutex_lock()
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 pthread_mutex_lock () from /lib/libpthread.so.0
 cwidget::threads::mutex::lock::acquire (this=0x8feff4)
 resolver_manager::state_snapshot (this=0x0)

[dino99 (9d9)]

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