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From: Bart Schaefer <schaefer@brasslantern.com>
Date: Mon, 10 Oct 2016 19:46:18 -0700
Message-ID: <CAH+w=7a7jc0Q2=M9aG5mttbazxfsHB-Cz=WwJzCvz_SdnbApRw@mail.gmail.com>
Subject: Re: Cores almost on demand in patcompile()
To: Sebastian Gniazdowski <sgniazdowski@gmail.com>
Cc: Zsh hackers list <zsh-workers@zsh.org>
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On Mon, Oct 10, 2016 at 8:31 AM, Sebastian Gniazdowski <
sgniazdowski@gmail.com> wrote:

> My new observations:
> =E2=80=93 the "ndash", .i.e. this char: >>> =E2=80=93 <<<, has a role, be=
cause
> replacing it with other char, also one like =C2=A7, stops core dump
>

Your stack trace in the first message on this thread has a string as the
"exp" argument of patcompile() that makes me suspicious.  The comments say
that this argument is expected to be metafied (pattern.c 522), but as best
I can tell it's passed down from paramsubst() tokenized but not metafied.
(I don't have access to my usual debugging platform this week.)  One of the
multibyte characters in the string

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