On Sun, 19 Jun 2011, John David Anglin wrote: > I suspect a race in interrupt handling. Note the SLOW timer message > associated with gnat1 process on cpu0. Also, cpu0 doesn't seem active. Specifically, do the cpu_mask_irq and __cpu_unmask_irq operations on cpu_eiem need to be atomic? Dave -- J. David Anglin dave.anglin@xxxxxxxxxxxxxx National Research Council of Canada (613) 990-0752 (FAX: 952-6602) -- To unsubscribe from this list: send the line "unsubscribe linux-parisc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html