unity-2d-panel crashed with SIGSEGV in malloc_consolidate()

[bolek]

I dont have any further information, almost all de bugs that jump is in the after the login process, y dont know what to do to see where is the error

ProblemType: Crash
DistroRelease: Ubuntu 11.10
Package: unity-2d-panel 4.6.1-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-10.16-generic-pae 3.0.4
Uname: Linux 3.0.0-10-generic-pae i686
ApportVersion: 1.22.1-0ubuntu2
Architecture: i386
CrashCounter: 1
Date: Fri Sep 9 16:49:58 2011
ExecutablePath: /usr/bin/unity-2d-panel
ProcCmdline: unity-2d-panel
ProcEnviron:
 PATH=(custom, no user)
 LANG=es_MX.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0xb6785f1d <malloc_consolidate+269>: cmp 0xc(%eax),%esi
 PC (0xb6785f1d) ok
 source "0xc(%eax)" (0x4e4c470b) not located in a known VMA region (needed readable region)!
 destination "%esi" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: unity-2d
StacktraceTop:
 malloc_consolidate (av=0xb6890400) at malloc.c:5161
 malloc_consolidate (av=0xb6890400) at malloc.c:5089
 _int_free (av=0xb6890400, p=0xa551c28) at malloc.c:5034
 __GI___libc_free (mem=0xa59bb38) at malloc.c:3738
 operator delete(void*) () from /usr/lib/i386-linux-gnu/libstdc++.so.6
Title: unity-2d-panel crashed with SIGSEGV in malloc_consolidate()
UpgradeStatus: Upgraded to oneiric on 2011-08-24 (16 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Apport retracing service (apport)]

StacktraceTop:
 malloc_consolidate (av=0xb6890400) at malloc.c:5161
 malloc_consolidate (av=0xb6890400) at malloc.c:5089
 _int_free (av=0xb6890400, p=0xa551c28) at malloc.c:5034
 __GI___libc_free (mem=0xa59bb38) at malloc.c:3738
 operator delete (ptr=0xa59bb38) at ../../../../src/libstdc++-v3/libsupc++/del_op.cc:47

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.