GNU bug report logs - #21380
25.0.50; GTK-induced segfault when scheduling timer from window-configuration-change-hook

Previous Next

Full log

View this message in rfc822 format

From: Po Lu <luangruo <at> yahoo.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: rudalics <at> gmx.at, monnier <at> IRO.UMontreal.CA, pipcet <at> gmail.com, 21380 <at> debbugs.gnu.org
Subject: bug#21380: 25.0.50; GTK-induced segfault when scheduling timer from window-configuration-change-hook
Date: Fri, 29 Apr 2022 21:44:43 +0800

Eli Zaretskii <eliz <at> gnu.org> writes:

> First, I see no guarantee that atimers cannot run Lisp, ever.  And
> second, even if they don't run Lisp, they could run code which
> directly or indirectly modifies Vtimer_list, and we cannot allow that
> in this case.
>
> IOW, the problem is not that Lisp isn't supposed to run in this
> situation, the problem is that we examine and modify Vtimer_list, so
> we cannot allow any code that could potentially modify that behind our
> backs while we are at that.

Hmm, okay, thanks for explaining.  I guess some code called by the input
polling atimer eventually ends up modifying `timer-list' when input
polling is enabled.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.