Comment 9 for bug 755066

An update from today's testing:

We went through the test case today, and began testing older kernel releases to see if we could find a bisection point. These tests were run on three different SandyBridge machines, with 1gb, 2gb, and 3gb of memory. All using a dual core chip.

In any case where there was a failure, we hung < 5 iterations through the reproducer.
In any case where there was success we went beyond 20 (even 35) iterations.

Using the Kernel Team's mainline builds from here:
 - http://kernel.ubuntu.com/~kernel-ppa/mainline/

Working: v2.6.37-natty & v2.6.37.6-natty
Failing: v2.6.38-rc1-natty

We've even seen the same failure up to 2.6.39-rc3

There is ~8000 patches between 2.6.37 and 2.6.38-rc1, requiring 13 bisections from what I gather.