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Date: Mon, 28 Aug 2017 18:57:09 +0100
From: Peter Stephenson <p.w.stephenson@ntlworld.com>
To: zsh-workers@zsh.org
Subject: Re: Segfault in paramsubst() from completion (regression from
 5.3.1)
Message-ID: <20170828185709.59d2f58a@ntlworld.com>
In-Reply-To: <20170828005055.ije2rr4d7ovbmfr4@tarpaulin.shahaf.local2>
References: <20170828005055.ije2rr4d7ovbmfr4@tarpaulin.shahaf.local2>
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On Mon, 28 Aug 2017 00:50:55 +0000
Daniel Shahaf <d.s@daniel.shahaf.name> wrote:
> In 5.3.1 (Debian package) I just get:
> 
>     _tags:comptags:36: nesting level too deep
>     _tags:comptags:60: nesting level too deep
>     _tags:comptags:67: nesting level too deep

That's the same problem.  We have no control over whether the system has
enough resources that we hit an arbitrary recursion limit before
there's a crash.

See many, many discussions over the years, including one quite recently,
and another not so many months ago.

Calling _normal recursively is in some cases sensible, in particular
if you've pruned the command line since the first call
(c.f. _precommand), so trying to check for a real problem isn't that easy.

pws