GNU bug report logs -
#40907
Font-lock-mode hanging in Java buffers
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Reported by: Adam Van Ymeren <adam <at> vany.ca>
Date: Mon, 27 Apr 2020 17:32:01 UTC
Severity: normal
Done: Lars Ingebrigtsen <larsi <at> gnus.org>
Bug is archived. No further changes may be made.
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Message #8 received at 40907 <at> debbugs.gnu.org (full text, mbox):
On 27.04.2020 20:30, Adam Van Ymeren wrote:
> I've been doing a lot of Java work lately, and I'm having issues with
> emacs hanging and spinning at 100% CPU. I believe the culprit to be
> font-lock-mode. C-g doesn't save me either, I usually have to kill
> emacs. Any advice on how to debug this if C-g doesn't work?
You can send the USR2 signal to the Emacs process to try to interrupt
what it's doing and enter the debugger:
kill -SIGUSR2 <pid>
To fix this, we'll most likely need the contents of the buffer that has
the problem. If it's proprietary, you could try recreating the problem
from scratch, or replacing all identifiers in the code with something
else, etc.
You could also try a build of Emacs 27 first before doing all that.
This bug report was last modified 3 years and 279 days ago.
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