[R] Help needed: plotting with no device

[Thomas Lumley]

On Mon, 29 Sep 2003, Ross Boylan wrote:

> I have a hung session I would very much like to recover, since it has
> some simulation results I haven't saved (that took about 12 hours to
> create).  Yes, I know, I should have saved while I had the chance.
>
> I tried to do a hist() in an environment without a plotting device.
> My R session now seems to be hung; ^C doesn't do anything.  I thought
> it would timeout, but it has not so far.

You may be able to send SIGUSR1 to the process, which tells it to quit and
save, or SIGUSR2, which is quit and save without running .Last and
.on.exit stuff.  It depends on how badly it is wedged.

	-thomas