Description of problem:
On the Smoke cluster in the Minneapolis lab, if I do
mkinitrd, lvs will segfault and die silently, leaving
me with a partial initrd file.  

I have to do two things to get it to work:

1. I have to patch /sbin/mkinitd like this:
465c465
<     local vg=`lvs --noheadings -o vg_name $1 2>/dev/null`
---
>     local vg=`lvm.static lvs --noheadings -o vg_name $1 2>/dev/null`
2. I have to change locking_type = 1 in /etc/lvm/lvm.conf

Doing those two things allows mkinitrd to work.
Either one alone is not enough.  In other words, changing
locking_type = 1 will not make mkinitrd work properly, and
using lvm.static to execute lvs will still not work if 
locking_type = 2.

How reproducible:
Always.

Steps to Reproduce:
1. Grab the latest kernel.org kernel
2. make menuconfig
3. make
4. make modules
5. make modules_install
6. Edit /etc/lvm/lvm.conf and change locking_type = 2
   and add the appropriate locking library.
7. make install (this does a mkinitrd and leaves you with a partial)

Once you have a kernel image:
rm /boot/initrd-2.6.18-rc4.img
mkinitrd /boot/initrd-2.6.18-rc4.img 2.6.18-rc4

Actual results:
The initrd file in /boot is 1.4MB and does not boot.

Expected results:
The initrd file in /boot should be 2.1MB and should boot.

Additional info:
I was compiling the latest git tree for gfs2 at the time.
All of the machines in the smoke cluster do the same thing,
and they're all FC6test1 with recent updates.
The cluster consists of: camel, merit, winston, kool, salem.