On Thu, 2009-02-12 at 23:56 +0100, Thomas Gleixner wrote:
> We are pleased to announce the first update to our new preempt-rt
> series. It fixes the reported bugs and some more.
> 
FYI:

These patches in RT2:

rt-fix-ipi-kfree-introduce-ipi_softirq.patch
rt-fix-ipi-kfree-introduce-ipi_softirq-cleanup.patch

Cause a hard-lock when running dhcp on my 8-way AMD box.

Reverting them eliminates the issue.

Sven