Cannot create an LVM disk layout on top of SW RAID in kickstart

Using a partition layout like this in our kickstart file:

zerombr yes
clearpart --all --initlabel
part raid.01 --size 512 --asprimary --ondisk sda
part raid.11 --size 1 --grow --ondisk sda
part raid.02 --size 512 --asprimary --ondisk sdb
part raid.12 --size 1 --grow --ondisk sdb
raid /boot --level 1 --fstype=ext3 --device=md0 raid.01 raid.02
raid pv.01 --level 1 --device=md1 --spares 0 raid.11 raid.12
volgroup privg pv.01
logvol / --vgname=privg --name=lv_root --fstype=ext3 --size=16384
logvol /tmp --vgname=privg --name=lv_tmp --fstype=ext3 --size=1024 --grow
logvol swap --vgname=privg --name=lv_swap --fstype=ext3 --size=32768

I get the following crash/stack trace:

Traceback (most recent call last):
  File "/usr/bin/anaconda", line 1089, in ?
    intf.run(id, dispatch, configFileData)
  File "/usr/lib/anaconda/text.py", line 471, in run
    dispatch.gotoNext()
  File "/usr/lib/anaconda/dispatch.py", line 157, in gotoNext
    self.moveStep()
  File "/usr/lib/anaconda/dispatch.py", line 225, in moveStep
    rc = apply(func, self.bindArgs(args))
  File "/usr/lib/anaconda/packages.py", line 488, in turnOnFilesystems
    thefsset.createLogicalVolumes(instPath)
  File "/usr/lib/anaconda/fsset.py", line 1293, in createLogicalVolumes
    entry.device.setupDevice(chroot)
  File "/usr/lib/anaconda/fsset.py", line 1861, in setupDevice
    raise SystemError, "lvcreate failed for %s" %(self.name,)
SystemError: lvcreate failed for lv_tmp

I've tried reordering the logvol statements, tried different sizes, etc. 
to no avail.  Suspecting that the --grow was at fault, I removed it and 
found that it works fine!

::sigh::

I'd imagine that other people out there have had a similar problem.  How 
  have you worked around anaconda's bug that it crashes when specifying 
--grow in this fashion?

My first knee-jerk reaction is to set /tmp artificially small (say 1GB) 
and then have the %post install detect this, expand the logvol to full 
size, then resize2fs the /tmp filesystem.  But this is clunky and not 
really something I want to do.

-- 

Paul Krizak                         5900 E. Ben White Blvd. MS 625
Advanced Micro Devices              Austin, TX  78741
Linux/Unix Systems Engineering      Phone: (512) 602-8775
Silicon Design Division             Cell:  (512) 791-0686


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