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Date: Wed, 16 May 2018 00:01:09 +0900
From: Takashi Yano <takashi.yano@nifty.ne.jp>
To: cygwin@cygwin.com
Subject: Re: Octave crashes with segfault
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I have confirmed that this is resolved with fontconfig 1.12.6-2.

Thanks.

On Sat, 12 May 2018 12:37:47 +0900
Takashi Yano <takashi.yano@nifty.ne.jp> wrote:

> Hi, cygwin folks.
> 
> I found octave cannot start, or crashes by plot command in recent
> 32bit cygwin. This occurs in Windows 10 (1709 or later).
> 
> It seems that this is a problem of fontconfig package.
> 
> To reproduce this:
> 1. Install 32bit version of cygwin with the following packages.
>     - octave
>     - gnuplot
>     - xorg-server
>     - dbus
> 2. execute 'dbus-uuidgen'. Without this step, octave complains
>     about dbus.
> 3. execute 'run XWin -multiwindow'
> 4. execute 'export DISPLAY=':0.0'
> 5.1 execute 'octave'. This fails with the message:
> octave exited with signal 11
> 5.2 execute 'octave -W' and issue the command 'plot([])'.
>     This fails with the message:
> panic: Segmentation fault -- stopping myself...
> attempting to save variables to 'octave-workspace'...
> save to 'octave-workspace' complete
> Segmentation fault (core dumped)
> 
> Workaround 1:
>  Remove /usr/share/fonts/microsoft/bahnschrift.ttf
> 
> Workaround 2:
>  Build fontconfig package from source code and replace
>  cygfontconfig-1.dll.
> 
> cygcheck.out in failure environment is attached.
> 
> -- 
> Takashi Yano <takashi.yano@nifty.ne.jp>


-- 
Takashi Yano <takashi.yano@nifty.ne.jp>

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