More syscall messaging commits, and some testing code as well.

[Matthew Dillon]

:> 
:> That doesn't mean every system call needs to be made interruptable. It
:> just means that long-lived system calls need to be interruptable: like
:> NFS mounts are if you turn on intr (not sure why anyone doesn't turn
:> that on).
:
:because a lot of (stupid?) apps don't really handle the case of their backing
:store going away very efficiently. if its a temporary thing you really should
:have your apps block, but if I send an app a kill -9, even if its just as root,
:I'd prefer them to die.
:
:*sigh* we can all wish..
:
:Adrian
:
:-- 
:Adrian Chadd			<angryskul> learning is bad

    I don't think it's all that difficult to make kill -9 work even if a
    program is stuck in a hard mounted NFS operation.   I would agree
    with such a change if it were submitted, as long as (like with 'intr'
    mounts) the signal does not abort the operation until NFS has gone
    through a few retries.  Maybe we could call it the 'medium well done'
    option.  Not too hard, not too soft :-).

					-Matt
					Matthew Dillon 
					<dillon at xxxxxxxxxxxxx>