nvi dying with "Resource temporarily unavailable"

[Ruslan Ermilov]

On Thu, Aug 07, 2003 at 10:30:22PM +1000, Stephen McKay wrote:
> Since I upgraded to FreeBSD 4.8 (from 4.5) I've noticed occasional failures
> of nvi.  It will suddenly die as a key is pressed, emitting:
> 
> Error: input: Resource temporarily unavailable
> 
> and you are staring at your command prompt.
> 
> I googled for this message and found that people here and there have been
> complaining of this since about FreeBSD 4.2, but that absolutely none of
> them have received a reply.
> 
> What's going on here?  Down in the bowels of nvi a read of the pty returns
> EAGAIN and that is treated as fatal.  This should only occur with read() if
> the input is non-blocking, and as far as I can tell it isn't.
> 
> So, is this a nvi bug (read() returning EAGAIN should be non-fatal)?  Is
> this a pty bug (read() incorrectly returning EAGAIN)?  Perhaps it could be
> even an xterm bug?  (Since I also upgraded to the XFree86 4.x series when I
> upgraded to FreeBSD 4.8 and maybe those other folks were early adopters).
> 
> Any ideas?
> 
stty sane


Cheers,
-- 
Ruslan Ermilov		Sysadmin and DBA,
ru at sunbay.com		Sunbay Software Ltd,
ru at FreeBSD.org		FreeBSD committer
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