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bug#30785: Man pages truncated, repeated

From: Pierre Neidhardt
Subject: bug#30785: Man pages truncated, repeated
Date: Mon, 14 Jan 2019 16:06:58 +0100
User-agent: mu4e 1.0; emacs 26.1

> https://sourceware.org/gdb/onlinedocs/gdb/Forks.html
> this might help here.

Thanks Gábor.
So I tried the following in gdb:

> set follow-for-mode child
> set detach-on-fork off
> run emacs
[inferior 2 completes]
> inferior 1
[inferior 3 completes]
> inferior 1
[inferior 4 completes]
> inferior 1
[inferior 5 hangs]

GDB seems to be stuck on the 5th inferior.  Maybe this is not so reliable.

> Can we trigger the segfault without libpipeline?

"preconv" by itself seems to work perfectly.  It even works in man if it's in
the PATH.  It only breaks from libpipeline.

Pierre Neidhardt

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