Re: Preempt-RT on OMAP3?

David Brownell
2009-04-06T10:25:48Z

On Sunday 05 April 2009, Hugo Vincent wrote:
> I'm trying to get the realtime patch set to work on OMAP3 (Gumstix
> Overo). Linux-omap 2.6.29 with the RT patches -rt1 or -rt2 work mostly
> as is (MUSB and the usb-gadget layer have quite a few problems, and

Like what? Way back in 2.6.10 MUSB behaved relatively sanely.
But that's a while back. ;)

> the realtime self-test stuff picks up a few problems to do with
> spinlock usage etc, but most things seem to mostly work correctly for
> my needs). Running cyclictest with various types of loads gives an
> average latency of ~30-50 usec and worst case up around 300 usec.