GNU logs - #67528, boring messages

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Subject: bug#67528: tool-bar
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In nsterm.m, deleting the lines of code


#ifdef NS_IMPL_COCOA
  if (! send_appdefined)
    {
    /* OS X 10.10.1 swallows the AppDefined event we are sending =
ourselves
         in certain situations (rapid incoming events).
         So check if we have one, if not add one.  */
      NSEvent *appev =3D [NSApp =
nextEventMatchingMask:NSEventMaskApplicationDefined
                                          untilDate:[NSDate distantPast]
                                             inMode:NSDefaultRunLoopMode
                                            dequeue:NO];
      if (! appev) send_appdefined =3D YES;
    }
#endif
=20
as done in commit 6acb3c5b05a7b9fb32a5336e1bb740f527571ae9 on 23-09-11, =
seems to be incompatible with macos Sonoma or Monterey. In both =
versions, and with both an M1 processor and an Intel one, I got the =
following problem, with these lines of code removed. I have pdf-tools =
installed, and via the code in windows.el, I have both the pdf output =
and some latex source code to appear in their own frames. I also have a =
managed to have a tool-bar in the frame showing the pdf-outout, with an =
icon for going from one page to the next. Now if I repeatedly click with =
the mouse on this icon very fast, then, after 3 to 5 clicks, the whole =
emacs.app begins to hang. This is not so with the above lines of code =
still present in nsterm.m.

Konrad Podczeck=

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To: Konrad Podczeck <konrad.podczeck@HIDDEN>
Subject: bug#67528: Acknowledgement (tool-bar)
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reassign 67528 emacs
quit

Message sent to bug-gnu-emacs@HIDDEN:

Subject: bug#67528: tool-bar
Resent-From: Stefan Kangas <stefankangas@HIDDEN>
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 Podczeck's message of "Wed, 29 Nov 2023 17:10:07 +0100")
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Konrad Podczeck <konrad.podczeck@HIDDEN> writes:

> In nsterm.m, deleting the lines of code
>
>
> #ifdef NS_IMPL_COCOA
>   if (! send_appdefined)
>     {
>     /* OS X 10.10.1 swallows the AppDefined event we are sending ourselve=
s
>          in certain situations (rapid incoming events).
>          So check if we have one, if not add one.  */
>       NSEvent *appev =3D [NSApp nextEventMatchingMask:NSEventMaskApplicat=
ionDefined
>                                           untilDate:[NSDate distantPast]
>                                              inMode:NSDefaultRunLoopMode
>                                             dequeue:NO];
>       if (! appev) send_appdefined =3D YES;
>     }
> #endif
>
> as done in commit 6acb3c5b05a7b9fb32a5336e1bb740f527571ae9 on 23-09-11, s=
eems to be incompatible with macos Sonoma or Monterey. In both versions, an=
d with both an M1 processor and an Intel one, I got the following problem, =
with these lines of code removed. I have pdf-tools installed, and via the c=
ode in windows.el, I have both the pdf output and some latex source code to=
 appear in their own frames. I also have a managed to have a tool-bar in th=
e frame showing the pdf-outout, with an icon for going from one page to the=
 next. Now if I repeatedly click with the mouse on this icon very fast, the=
n, after 3 to 5 clicks, the whole emacs.app begins to hang. This is not so =
with the above lines of code still present in nsterm.m.
>
> Konrad Podczeck

Alan, what do you think?

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From: Alan Third <alan@HIDDEN>
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package emacs
merge 67528 67694
thankyou

On Wed, Jan 10, 2024 at 09:39:54AM -0800, Stefan Kangas wrote:
> Konrad Podczeck <konrad.podczeck@HIDDEN> writes:
> 
> > In nsterm.m, deleting the lines of code
> >
> >
> > #ifdef NS_IMPL_COCOA
> >   if (! send_appdefined)
> >     {
> >     /* OS X 10.10.1 swallows the AppDefined event we are sending ourselves
> >          in certain situations (rapid incoming events).
> >          So check if we have one, if not add one.  */
> >       NSEvent *appev = [NSApp nextEventMatchingMask:NSEventMaskApplicationDefined
> >                                           untilDate:[NSDate distantPast]
> >                                              inMode:NSDefaultRunLoopMode
> >                                             dequeue:NO];
> >       if (! appev) send_appdefined = YES;
> >     }
> > #endif
> >
> > as done in commit 6acb3c5b05a7b9fb32a5336e1bb740f527571ae9 on
> > 23-09-11, seems to be incompatible with macos Sonoma or Monterey.
> > In both versions, and with both an M1 processor and an Intel one,
> > I got the following problem, with these lines of code removed. I
> > have pdf-tools installed, and via the code in windows.el, I have
> > both the pdf output and some latex source code to appear in their
> > own frames. I also have a managed to have a tool-bar in the frame
> > showing the pdf-outout, with an icon for going from one page to
> > the next. Now if I repeatedly click with the mouse on this icon
> > very fast, then, after 3 to 5 clicks, the whole emacs.app begins
> > to hang. This is not so with the above lines of code still present
> > in nsterm.m.
> >
> > Konrad Podczeck
> 
> Alan, what do you think?

We had a look at this in bug#67694, and I don't know. The code was
removed because it appeared to be causing a crash on startup, so if we
reinstate it we'll need to reopen that bug report (bug#65843).

I find it hard to believe the comment is right and this is a bug that
hasn't ever been fixed. I think it's more likely the actual culprit is
some timing issue in our own code, but that doesn't help as I don't
understand it. As for how this code causes the crash in 65843, I don't
understand that either.
-- 
Alan Third

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Date: Wed, 10 Jan 2024 19:30:29 +0000
From: Alan Third <alan@HIDDEN>
To: Stefan Kangas <stefankangas@HIDDEN>
Subject: Re: bug#67528: tool-bar
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package emacs
merge 67528 67694
thankyou

On Wed, Jan 10, 2024 at 09:39:54AM -0800, Stefan Kangas wrote:
> Konrad Podczeck <konrad.podczeck@HIDDEN> writes:
> 
> > In nsterm.m, deleting the lines of code
> >
> >
> > #ifdef NS_IMPL_COCOA
> >   if (! send_appdefined)
> >     {
> >     /* OS X 10.10.1 swallows the AppDefined event we are sending ourselves
> >          in certain situations (rapid incoming events).
> >          So check if we have one, if not add one.  */
> >       NSEvent *appev = [NSApp nextEventMatchingMask:NSEventMaskApplicationDefined
> >                                           untilDate:[NSDate distantPast]
> >                                              inMode:NSDefaultRunLoopMode
> >                                             dequeue:NO];
> >       if (! appev) send_appdefined = YES;
> >     }
> > #endif
> >
> > as done in commit 6acb3c5b05a7b9fb32a5336e1bb740f527571ae9 on
> > 23-09-11, seems to be incompatible with macos Sonoma or Monterey.
> > In both versions, and with both an M1 processor and an Intel one,
> > I got the following problem, with these lines of code removed. I
> > have pdf-tools installed, and via the code in windows.el, I have
> > both the pdf output and some latex source code to appear in their
> > own frames. I also have a managed to have a tool-bar in the frame
> > showing the pdf-outout, with an icon for going from one page to
> > the next. Now if I repeatedly click with the mouse on this icon
> > very fast, then, after 3 to 5 clicks, the whole emacs.app begins
> > to hang. This is not so with the above lines of code still present
> > in nsterm.m.
> >
> > Konrad Podczeck
> 
> Alan, what do you think?

We had a look at this in bug#67694, and I don't know. The code was
removed because it appeared to be causing a crash on startup, so if we
reinstate it we'll need to reopen that bug report (bug#65843).

I find it hard to believe the comment is right and this is a bug that
hasn't ever been fixed. I think it's more likely the actual culprit is
some timing issue in our own code, but that doesn't help as I don't
understand it. As for how this code causes the crash in 65843, I don't
understand that either.
-- 
Alan Third

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Date: Fri, 12 Jan 2024 17:22:54 +0000
From: Alan Third <alan@HIDDEN>
To: Kirill Korinsky <kirill@HIDDEN>
Subject: Re: bug#51336: 29.0.50; Application not responding
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package emacs
merge 51336 67694
thankyou

On Fri, Jan 12, 2024 at 05:31:49PM +0100, Kirill Korinsky wrote:
> Emacs was frozen (UI) and hasn't response to any command. Before that it had
> happened I'd resized a window.
> 
> I attach and de-attach external screen quite often and it triggers the resize.
> 
> So, when it was frozen I've attached via lldb and get stack traces bellow.
> 
> It is reproducable, not each resize but often enough.
> 
> When it frozen, I need to kill it, otherwise it absolutle useless.
> 
> And this stack trace was obtained from local root d9462e24a967e32d550ee886b5150f0cc78358f6
> 
> (lldb) bt all
> * thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
>   * frame #0: 0x00007ff80d07596a libsystem_kernel.dylib`mach_msg_trap + 10
>     frame #1: 0x00007ff80d075cd8 libsystem_kernel.dylib`mach_msg + 56
>     frame #2: 0x00007ff80d17929d CoreFoundation`__CFRunLoopServiceMachPort + 319
>     frame #3: 0x00007ff80d177928 CoreFoundation`__CFRunLoopRun + 1276
>     frame #4: 0x00007ff80d176d6c CoreFoundation`CFRunLoopRunSpecific + 562
>     frame #5: 0x00007ff815e245e6 HIToolbox`RunCurrentEventLoopInMode + 292
>     frame #6: 0x00007ff815e2434a HIToolbox`ReceiveNextEventCommon + 594
>     frame #7: 0x00007ff815e240e5 HIToolbox`_BlockUntilNextEventMatchingListInModeWithFilter + 70
>     frame #8: 0x00007ff80fbb1f6d AppKit`_DPSNextEvent + 927
>     frame #9: 0x00007ff80fbb062a AppKit`-[NSApplication(NSEvent) _nextEventMatchingEventMask:untilDate:inMode:dequeue:] + 1394
>     frame #10: 0x00007ff80fba2cd9 AppKit`-[NSApplication run] + 586
>     frame #11: 0x0000000104b2449c Emacs`-[EmacsApp run] + 317

OK, I think this is the same as bug#67694, so I'll merge them.

I think we need to revert 6acb3c5b05a7b9fb32a5336e1bb740f527571ae9 as
discussed in that other bug report and re-open bug#65843, if we can.

Unless anyone else has a better idea.
-- 
Alan Third

Last modified: Sat, 20 Jan 2024 12:30:02 UTC

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