O> Perhaps removing the "|| r == -EINTR" part would make both of you
> happy?  He gets the reliability on pipes, you keep the interrupt on
> signals.

How does that improve things.

There is a second problem anyway. Suppose something is causing a
continual stream of signal events - what guarantees it makes progress ?

The only source of signals during a dump should be external ones. Far
better would be to set some kind of defined signal mask during the dump
(say SIGPIPE, SIGINT, SIGQUIT) ? I agree with Paul's patch in the sense
we don't want spurious SIGIO events or similar spoiling a dump.

Alan