[BUG] hotplug cpus on ia64

Cliff Wickman
2008-05-21T14:45:55Z

Gentlemen,

I built an ia64 kernel from Andrew's tree (2.6.26-rc2-mm1)
and get a very predictable hotplug cpu problem.

billberry1:/tmp/cpw # ./dis
disabled cpu 17
enabled cpu 17
billberry1:/tmp/cpw # ./dis
disabled cpu 17
enabled cpu 17
billberry1:/tmp/cpw # ./dis

The script that disables the cpu always hangs (unkillable)
on the 3rd attempt.
I haven't spent any debugging time on it yet.

Just wondering if you've seen it? It doesn't seem to happen x86_64.

-Cliff Wickman
cpw@sgi.com