On Thu, Nov 04, 2010 at 11:21:40AM +1100, Dave Chinner wrote:
Interesting, the scheduler failed to put the dead task out of
run queue, so to me this is likely to be a scheduler bug.
I have no idea how sudo can change the behaviour here.
Another guess is we need a smp_wmb() before schedule() above.
We need to Cc Oleg and Ingo.