packagekitd crashed with SIGSEGV in AptIntf::cancel()

[Silvério Correia]

...

ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: packagekit 0.7.6-1
ProcVersionSignature: Ubuntu 3.5.0-15.23-generic 3.5.4
Uname: Linux 3.5.0-15-generic x86_64
ApportVersion: 2.5.2-0ubuntu4
Architecture: amd64
CrashCounter: 1
Date: Thu Sep 27 13:08:04 2012
ExecutablePath: /usr/lib/packagekit/packagekitd
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120301)
ProcCmdline: /usr/lib/packagekit/packagekitd
ProcEnviron:

SegvAnalysis:
 Segfault happened at: 0x7fef189f1d11 <_ZN7AptIntf6cancelEv+1>: mov 0x10(%rdi),%rax
 PC (0x7fef189f1d11) ok
 source "0x10(%rdi)" (0x0401a930) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: packagekit
StacktraceTop:
 AptIntf::cancel() () from /usr/lib/x86_64-linux-gnu/packagekit-backend/libpk_backend_aptcc.so
 ?? ()
 ?? ()
 ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
 g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
Title: packagekitd crashed with SIGSEGV in AptIntf::cancel()
UpgradeStatus: Upgraded to quantal on 2012-09-17 (10 days ago)
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 AptIntf::cancel (this=0x401a920) at apt-intf.cpp:136
 pk_transaction_cancel (transaction=transaction@entry=0x20f8100, context=context@entry=0x7fef04751460, params=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at pk-transaction.c:3274
 pk_transaction_method_call (connection_=<optimized out>, sender=0x7fef10002e10 ":1.106", object_path=<optimized out>, interface_name=<optimized out>, method_name=0x7fef10006250 "Cancel", parameters=0x7fef10006610, invocation=0x7fef04751460, user_data=0x20f8100) at pk-transaction.c:5958
 g_bus_get (bus_type=<optimized out>, cancellable=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at /build/buildd/glib2.0-2.34.0/./gio/gdbusconnection.c:6956
 g_bus_get (bus_type=74781792, cancellable=0x7fef04751460, callback=<optimized out>, user_data=<optimized out>) at /build/buildd/glib2.0-2.34.0/./gio/gdbusconnection.c:6937