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Description of problem:
I have created a new logical volume and selected ext3 file system.
I saw the mkfs.ext3 process running actively for some time, but now it's idling, and never finishes. I have done this twice, so it is repeatable..

strace -p <pid of mkfs.ext3> gives only this:
write(1, "3632/4000", 9 <unfinished ...>

Could it be that when making a large file system mkfs hangs because the pipe to system-config-lvm fills up? Doesn't system-config-lvm poll the pipe until the mkfs process finishes? I can mkfs the volume manually without any problems.

I am creating a 0.5TB file system on a 1.3TB physical volume.

Version-Release number of selected component (if applicable):
system-config-lvm-0.9.32-1.0

How reproducible:
Always

Steps to Reproduce:
1. Create very large volume group (in my case a 1.3TB partition from a raid controller)
2. Create a large logical volume (in my case a 0.5TB partition)
3. Select to have it created with ext3 file system
  

Actual Results:  The volume gets created, mkfs.ext3 runs for a while, then idles

Expected Results:  Should have finished making the file system and mounted it

Additional info:

This server runs from a raid controller with 4 0.5TB disks in raid5. The raid set is partitioned in /, /var, swap and a large data partition. The data partition is used as the physical volume in lvm.