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bug#32812: 27.0.50; macOS Mojave GNU Emacs crash after 5-10 minutes or s
bug#32812: 27.0.50; macOS Mojave GNU Emacs crash after 5-10 minutes or so
Mon, 24 Sep 2018 11:17:06 +0100
On Sun, Sep 23, 2018 at 04:21:13PM +0100, Zack Piper wrote:
> (Replacing my post in #31904 with this since they're separate issues(?))
Sorry, I somehow missed that previous email.
> I've applied a slightly modified (i.e. updated) version of Alan's patch from
> bug #31904
> (attached) to fix an issue concerning the buffer and mode-line not being
> rendered. The patch works great, everything is now rendered.
> Now I notice that after 5-10 minutes (or even before), Emacs crashes with
> the below:
> objc: Invalid or prematurely-freed autorelease pool 0x1030032e0.
> This started occurring since upgrading to macOS Mojave, so possibly there's
> a bug with Mojave or just some incompatibility, not really sure!
It’s a bit strange looking, and autorelease pools are something of a
mystery to me.
I have a suspicion, though, that just creating a new autorelease pool
may solve this. I’ve attached a patch. It’s for emacs-26, but should
apply OK to master, or without too much work anyway.
It simply wraps the call to displayIfNeeded in a new pool:
ns_flush_display (struct frame *f)
/* Force the frame to redisplay. If areas have previously been marked
dirty by setNeedsDisplayInRect (in ns_focus), then this will call
draw_rect: which will "expose" those areas. */
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
[FRAME_NS_VIEW (f) displayIfNeeded];
Thanks for testing the patch and raising this issue. There’s not been
a lot of feedback so far and I think we’re going to have to commit the
patch soon given that Mojave is out today.
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