On Mon, 2011-08-08 at 16:10 -0700, Paul E. McKenney wrote:

On Mon, Aug 08, 2011 at 03:55:18PM +0200, Mike Galbraith wrote:

quoted

Greetings,

I've had no time to tinker with this but though I should get it posted,
so build latest/greatest to make sure it's still there.  It is.

Box can be idling along, and pow.  If RCU_BOOST is enabled, I get a hung
task panic after the stall.  If RCU_BOOST is off, and debugging options
are cut to the bone, box will stay up despite periodic gripes.

Yow!

Is this new in -rt8?  I wasn't seeing it in earlier versions.  Then
again, I was running 32 bits.

No, I saw it in earlier releases too.  The only thing I've done since
first seeing it is a quick build to see if it was still alive, or had
died of boredom while waiting for me to come out and play ;-)

	-Mike