Re: Ctrl-\ while executing a pipeline made zsh quit

[Vincent Lefevre <vincent@vinc17.net>]

On 2022-04-25 21:05:11 -0700, Bart Schaefer wrote:
> On Mon, Apr 25, 2022 at 8:00 PM Vincent Lefevre <vincent@vinc17.net> wrote:
> >
> > > I did discover that if "less" exits with an error, the whole pipeline
> > > becomes unkillable with either INT or QUIT; the shell is hung until
> > > the left side exits.
> >
> > If "less" really exits, how could this happen?
> 
> When I couldn't replicate your problem, I thought perhaps I was
> running the mless function the wrong way, so I did this:
> 
> ( zsh -fc 'print a few words; /bin/sleep 30' ) | mless -
> 
> This causes less to exit with a no-such-file error, at which point all
> signals were ignored and no prompt returned until the "sleep 30"
> finished.

I wasn't using "mless" in that way, though this may be related to
what I got. Anyway, I think that this is a bug in zsh; this issue
is also reproducible with "head -n 1" instead of "less".

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