Re: error on TTY read: no such file or directory

[Borsenkow Andrej <Andrej.Borsenkow@mow.siemens.ru>]

Bart Schaefer wrote:

> On Sep 30,  1:38pm, Zefram wrote:
> } Subject: Re: error on TTY read: no such file or directory
> }
> } lordzork@lordzork.com wrote:
> } >i made a new strace, this time without zsh reading any of its start up
> } >files. my idea was that this would make it easier to read, but the new
> } >strace looks completely different from the old one, at least to me.
> } 
> } It's still doing the same impossible thing.
> 
> I never saw the previous trace.   Looking at this one, I note that it's
> doing this impossible thing a lot, but only on fd 10, and sometimes zsh
> just ignores the problem and loops.  (That would happen when errno == 0,
> or if the impossible occurred somewhere other than in getkey().)
> 


In first strace I got it does it exactly once and then bails out. Not 
that it helps much.


> Ignoring the problem would mean that zsh discarded at least one char of
> input if there really were any, but there's no evidence of input being
> lost.  That in turn makes me think that reads from the tty are behaving
> as if they're non-blocking, but for some reason are returning 1025 when
> they should be returning -1 with EWOULDBLOCK.
> 


I very much like to see what happens with "standard" mingetty instead of 
agetty. There is always a small chance it sets tty into some weird mode.


-andrej