Description of problem:
I have a Dual P4 Xeon machine (32 bit Xeons), with hyperthreading enabled and 6
gigs of memory, with 6 IDE drives. 4 of these are on a separate controller card,
and setup as a soft raid device /dev/md0, mounted on /data. If I try and run
multiple 'dd if=/dev/zero of=/data', it crashes.


Version-Release number of selected component (if applicable):
2.6.18-92.el5xen

How reproducible:
Happens every time.

Steps to Reproduce:
1. Run multiple instances of dd if=/dev/zero of=/data/bigfatfile.$RANDOM on a
device.
2. Reducing the amount of memory available to Domain-0 seems to trigger it sooner.

  
Actual results:
System crashes.




Expected results:


Additional info: