Subject: Re: bug#38837: 26.3.50; Segmentation Fault with Desktop Save Mode (emacs 26.3.50)

From: Eli Zaretskii <[email-masked]>
Date: Wed, 01 Jan 2020 05:39:55 +0200

> From: [email-masked]
> Date: Tue, 31 Dec 2019 20:03:24 +0000
> 
> When I try to run emacs 26.3.50 (built from source), it gives me the following warning: "Warning: desktop file appears to be in use by PID .... Using it may cause conflicts. Use it anyway? (y or n)". If I select "y", it eventually quits and the following error is produced:
> 
> Fatal error 11: Segmentation fault
> Backtrace:
> ./src/emacs-26.3.50.1[0x5072fe]
> ./src/emacs-26.3.50.1[0x4ece6a]
> ./src/emacs-26.3.50.1[0x50581e]
> ./src/emacs-26.3.50.1[0x505a38]
> ./src/emacs-26.3.50.1[0x505abc]
> /lib/x86_64-linux-gnu/libpthread.so.0(+0x12890)[0x7f0e498eb890]
> /usr/lib/x86_64-linux-gnu/libXft.so.2(XftCharIndex+0xd)[0x7f0e4a9bb68d]

Crystal ball says this is bug#38442.  If so, it is already fixed, and
the problem is that you have a non-XFT font backend specified by the
desktop file for one of your frames.