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bug#27761: Crash while using proof-general/company-coq on OS X

From: Eli Zaretskii
Subject: bug#27761: Crash while using proof-general/company-coq on OS X
Date: Wed, 19 Jul 2017 21:40:15 +0300

> From: John Wiegley <address@hidden>
> Cc: address@hidden,  address@hidden
> Date: Wed, 19 Jul 2017 14:34:15 -0400
> >>>>> Eli Zaretskii <address@hidden> writes:
> >> This may be hard, but we'll try. It's 100% reproducible in both 25.1 and
> >> 25.2, but involves company-coq, Proof General, and some particular source
> >> files.
> > Aren't those available for reproducing on another machine?
> Sure, if you're willing to install them, we can send the source files and the
> exact steps.

Please go ahead.

> > Alternatively, I could guide you through debugging the recursion, but I'll
> > need you to use GDB, not the macOS debugger.
> Sadly, only lldb is possible here. :(

Then I cannot help you with specific commands, but if you could step
through that code in get_next_display_element which recurses, and tell
me why it does so, what is the character where this happens, and what
is the value of it->method there, it could give some hints.

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