aptitude-curses crashed with SIGSEGV in pkgInitSystem()

[Dmitry Tkachenko]

aptitude update
under root user

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: aptitude 0.6.4-1ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-8.11-generic 3.0.1
Uname: Linux 3.0.0-8-generic x86_64
Architecture: amd64
CrashCounter: 1
Date: Sun Aug 21 12:13:38 2011
ExecutablePath: /usr/bin/aptitude-curses
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha amd64 (20110803.1)
ProcCmdline: aptitude update
ProcEnviron:
 SHELL=/bin/bash
 PATH=(custom, no user)
 LANG=ru_RU.UTF-8
SegvAnalysis:
 Segfault happened at: 0x7f6f9405f49a <_Z13pkgInitSystemR13ConfigurationRP9pkgSystem+122>: mov (%rdi),%rax
 PC (0x7f6f9405f49a) ok
 source "(%rdi)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: aptitude
StacktraceTop:
 pkgInitSystem(Configuration&, pkgSystem*&) () from /usr/lib/libapt-pkg.so.4.11
 ?? ()
 ?? ()
 __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
 ?? ()
Title: aptitude-curses crashed with SIGSEGV in pkgInitSystem()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Martin Pitt (pitti)]

StacktraceTop:
 pkgInitSystem (Cnf=..., Sys=@0x9bd898) at init.cc:158
 apt_preinit (rootdir=0x0) at ../../../../src/generic/apt/apt.cc:188
 main (argc=2, argv=0x7fffde0591f8) at ../../src/main.cc:631