[PATCH FYI 0/4] FIQ-based backtracing support

[Russell King - ARM Linux]

This is a prototype series for FIQ backtracing support, which is most
useful when trying to debug things like a spinlock lockup on a SMP
system, or a deadlock inside an IRQs-off region.

Some of this is based upon work by Daniel Thompson and others.

This is a work in progress - especially the final patch.

-- 
FTTC broadband for 0.8mile line: currently at 9.5Mbps down 400kbps up
according to speedtest.net.