Re: [PATCH] 2.4.18-rc2 Fix for get_pid hang

[Alan Cox]

> > to less than the number of pids available. You seem to be fixing a non
> > problem by adding branches to the innards of a loop.
> > 
> That was my original thought, but as Rik and WLI already pointed out, it
> won't account for process groups, tgids, etc.  This isn't a purely
> theoretical problem either, as we have run up against it many times.

Agreed - and I don't have any better solutions except 32bit pid_t - which
I suspect one day we are going to need. At least the O(1) scheduler now
makes it feasible 8)