From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Fri, 29 Aug 2014 10:14:28 -0400
From: Stephen Smalley <sds@tycho.nsa.gov>
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To: Sven Vermeulen <sven.vermeulen@siphos.be>,
 Steve Lawrence <slawrence@tresys.com>
Subject: Re: SELinux Userspace Release: 20140826-rc1
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On 08/29/2014 10:00 AM, Sven Vermeulen wrote:
> On Fri, Aug 29, 2014 at 2:56 PM, Steve Lawrence <slawrence@tresys.com> wrote:
>>>>>> Segmentation fault
>>>> [...]
>>>>> Can you provide a copy of your original policy prior to conversion?
>>>>
>>>> If you mean the policy.29 file, certainly. You can wget it from
>>>> http://dev.gentoo.org/~swift/tmp/20140828-policy.29
>>>
>>> No, the contents of /etc/selinux/mcs.  The migration script converts the
>>> old policy module store, not the final kernel policy file.
>>>
>>
>> Hmm, I'm unable to reproduce this. I think the policy store that Stephen
>> mentions will be help to reproduce it.
>>
> 
> Certainly.
> 
> The policy store can be found at
> http://dev.gentoo.org/~swift/tmp/20140829-etc-selinux-mcs.tar.gz

Hmm...semanage_migrate_store worked for me on that policy store.

Can you reproduce the fault?  If so, can you get debug info?
Build with debug flags and run semanage_migrate_store under valgrind,
perhaps?