bug#26932: 25.1; Crash triggered a few times a day with network process

[Eli Zaretskii]

> Date: Sun, 14 May 2017 21:54:56 +0100 (BST)
> From: Vivek Dasmohapatra <vivek@etla.org>
> 
> I have a rudimentary mud client in elisp I cobbled together and use
> (since emacs23 or so): It's been stable since then. However since
> upgrading to emacs25 I've seen 4 crashes of emacs itself - 3 yesterday
> and 1 today.
> 
> At first I thought perhaps it was keyboard/input related as it seemed
> to happen while I was typing, but today while running the client
> to see if I could track down the problem emacs segfaulted while
> I wasn't typing or using the mouse. I managed to get a backtrace
> out of gdb, which I have attached. I can semi-reliably reproduce
> the crash.
> 
> I haven't been able to run xbacktrace as it hasn't yet crashed while
> gdb was attached.
> 
> Looking at the backtrace and examining the source, it looks like
> it blows up in the maybe_gc inside funcall _just before_ the first
> hook in window-scroll-functions is called.

It segfaults in GC.

Is it possible for you to try the latest Emacs 25.2?

Thanks.