Description of Problem:
Disk Druid crashes when you try to make the "end cylinder" larger than 
the disk.

How Reproducible:
Quite

Steps to Reproduce:
1. use Disk Druid in text-mode install
2. remove all partitions (if any)
3. edit a "free space" partition
4. change "end cylinder" to one greater than disk geometry - if disk is 
8376 cylinders, use 83761 or something.

Actual Results:
Error message and then a crash.

Expected Results:
Error message.

Additional Information:

<dump>

Traceback (innermost last):
  File "/usr/bin/anaconda", line 608, in ?
    intf.run(id, dispatch, configFileData)
  File "/tmp/27249-i386/install//usr/lib/anaconda/text.py", line 370, in 
run
  File 
"/tmp/27249-i386/install//usr/lib/anaconda/textw/partition_text.py", line 
950, in __call__
  File 
"/tmp/27249-i386/install//usr/lib/anaconda/textw/partition_text.py", line 
896, in editCb
  File 
"/tmp/27249-i386/install//usr/lib/anaconda/textw/partition_text.py", line 
760, in editPartitionRequest
  File 
"/tmp/27249-i386/install//usr/lib/anaconda/textw/partition_text.py", line 
144, in refresh
  File "/tmp/27249-i386/install//usr/lib/anaconda/autopart.py", line 706, 
in doPartitioning
  File "/tmp/27249-i386/install//usr/lib/anaconda/autopart.py", line 665, 
in processPartitioning
  File "/tmp/27249-i386/install//usr/lib/anaconda/autopart.py", line 178, 
in fitConstrained
error: Error: Can't have a partition outside the disk!

</dump>