Bug#664859: LVM segfaults on 3.3-rc6

[Jonathan Nieder <jrnieder@gmail.com>]

Ben Hutchings wrote:

> Which shows that the segfault is always at the same code address:
>
> [   56.663596] lvm[540]: segfault at ffffffffff600400 ip ffffffffff600400 sp 00007fff25461ec8 error 5
> [   76.174282] exe[541]: segfault at ffffffffff600400 ip ffffffffff600400 sp 00007fffa69b3388 error 5
> [   78.307062] exe[542]: segfault at ffffffffff600400 ip ffffffffff600400 sp 00007fff33270d08 error 5
> [   87.775183] exe[543]: segfault at ffffffffff600400 ip ffffffffff600400 sp 00007ffffb125068 error 5
> [   97.937356] exe[545]: segfault at ffffffffff600400 ip ffffffffff600400 sp 00007fffb53be498 error 5
> [  108.789157] lvm[547]: segfault at ffffffffff600400 ip ffffffffff600400 sp 00007fff0e012348 error 5
>
> This address is not accessible in user-mode, and probably isn't used by
> the kernel either.

Nice lead.  Looks like
http://thread.gmane.org/gmane.linux.kernel/1248253/focus=1254330