Cliff Brake <cliff.brake@xxxxxxxxx> writes: > On Mon, Aug 31, 2009 at 11:16 PM, Cliff Brake<cliff.brake@xxxxxxxxx> wrote: > >> Applying >> >> http://cgit.openembedded.org/cgit.cgi/openembedded/diff/recipes/linux/linux-omap-2.6.29/0001-implement-TIF_RESTORE_SIGMASK-support-and-enable-the.patch?id=1f0d91e152f16fbd40bb2fb3c44a30d774d4dede >> >> Seems to fix or mask the udev problems. But, with preempt-rt, and >> EHCI enabled, I still get messages continually scrolling: > > A few more notes, the above patch is not required to make the PXA270 > work. Without EHCI enabled, the system boots and performs fairly > normal (I'm able to log in, etc). This looks to me like a case of poor (or non-existent) locking in the USB/EHCI driver, resulting in some corruption since the PC is at a bogus address (0x14). Does your PXA270 use the same EHCI driver? I assume not. I've been using -rt on a basic OMAP3 kernel, but have not enabled EHCI so haven't seen this. Might be useful to enable some of the in-kernel lock debugging to see if it turns up anything. Kevin -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
