GNU bug report logs - #30387
26.0.91; lisp_align_free is hanging Emacs on macOS 10.12

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Message #16 received at 30387 <at> debbugs.gnu.org (full text, mbox):

From: Moritz Schäfer <moritz.schaefer <at> biol.ethz.ch>
To: <30387 <at> debbugs.gnu.org>
Subject: Emacs 27.1 on NixOS; emacs freezes as previously described
Date: Wed, 11 Nov 2020 01:13:53 +0100

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I face the same issue as described previously by John Wiegley. After
several hours (sometimes even less than an hour), emacs freezes completely
without the option to recover it.
A backtrace also leads to lisp_align_free:

#0  0x000000000055aa0e in lisp_align_free ()
#1  0x000000000055acd9 in sweep_floats ()
#2  0x00000000005603ac in garbage_collect ()
#3  0x00000000005607e7 in Fgarbage_collect ()
...

This is especially cumbersome since I am running EXWM and have to therefore
recover my session in a tty by restarting my desktop manager.

I will add a timer to run the garbage collector every few (5) seconds so I
can hopefully track which event changes the state in a way that leads it to
the observed freezing behavior.

I report back back if I find out anything new. In the meanwhile, I am happy
for any suggestions on how to debug this issue.

-- 

Moritz Schäfer* <http://www.bsse.ethz.ch>*

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