So I'm doing my first bit of sparc64 kernel debugging, and not getting
very far..

Narrowing down the PR, mkfifo() succeeds, but any subsequent attempts to
open the fifo fail, open() simply hangs.

What's the best way to start debugging through sys_open() to see where
the deadlock is occurring?  I can debug userland stuff ok, but when the
actual syscall is hanging then I'm not sure where to go from there :-)

Thanks,

-- 
Jonathan Perkin - Internet Operations Engineer - BBC Internet Services
24x7 Hotline: +44 (0)1628 407 777 (x37777) - http://support.bbc.co.uk/