On Thu, Sep 20, 2007 at 11:27:18PM -0700, Sagar Borikar wrote:
> rm7k_wait_irqoff patch doesn't seem to improve the things for illegal
> instructions for E9k core.
> But many customers have reported that they do get illegal instruction when
> ICACHE_REFILLS_WORKAROUND_WAR is not enabled.
This is due to a very unfortunate design issue in the RM7000 / RM9000. So
it wasn't done by accident but with full intention but I call it a bug
anyway. So this also means all revs of these cores are affected and if
the issue is not being hit for a particular workload and where
ICACHE_REFILLS_WORKAROUND_WAR is disabled then that that's by coincidence