GNU bug report logs - #24678
Emacs crash on macOS 10.12 "Sierra": nextEventMatchingMask from background thread

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Package: emacs;

Reported by: Jean de Largentaye <jlargentaye <at> gmail.com>

Date: Wed, 12 Oct 2016 19:56:02 UTC

Severity: normal

Tags: fixed

Fixed in version 25.1

Done: Alan Third <alan <at> idiocy.org>

Bug is archived. No further changes may be made.

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From: Alan Third <alan <at> idiocy.org>
To: Jean de Largentaye <jlargentaye <at> gmail.com>
Cc: 24678 <at> debbugs.gnu.org
Subject: bug#24678: Emacs crash on macOS 10.12 "Sierra": nextEventMatchingMask from background thread
Date: Sat, 15 Oct 2016 23:53:49 +0100

On Wed, Oct 12, 2016 at 07:44:01PM +0000, Jean de Largentaye wrote:
> crashing in org.gnu.Emacs in deliver_fatal_thread_signal • Uncaught
> Exception 'NSInternalInconsistencyException': nextEventMatchingMask should
> only be called from the Main Thread!terminating with uncaught exception of
> type NSException : at com.apple.AppKit in -[NSApplication(NSEvent)
> shouldBeTreatedAsInkEvent:] + 0
> 
> Apparently, calling nextEventMatchingMask from a background thread is
> risky, and this has been made an assert as on 10.12, hence the crash.

Hi, is there any chance you could provide a full backtrace? I can’t
tell where the problem is and can’t reproduce myself as I’ve not
upgraded to 10.12 yet.
-- 
Alan Third
This bug report was last modified 8 years and 196 days ago.

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