GNU bug report logs - #24931
25.1.50; recentf breaks M-x tetris scoring

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Robert Marshall <robert <at> capuchin.co.uk>
To: bug-gnu-emacs <at> gnu.org
Subject: 25.1.50; recentf breaks M-x tetris scoring
Date: Sat, 12 Nov 2016 21:07:59 +0000

With emacs -Q
evaluate
(require 'recentf)
(recentf-mode t)

and then M-x tetris

just let the blocks pile up to finish quickly, when it completes I
get the message

   File exists, but cannot be read

when it tries to access the score file and no score gets added - if it
was going to do so. Without those recentf lines the score file is read
successfully.

The issue doesn't appear to be dependent upon
~/.emacs.d/games/tetris-scores in the recentf list

Robert

In GNU Emacs 25.1.50.6 (x86_64-unknown-linux-gnu, GTK+ Version 3.18.9)
 of 2016-09-03 built on robert-new-desktop
Repository revision: 2ad16e4bf9b43c169bcfa1e6240584488fbc3d78
Windowing system distributor 'The X.Org Foundation', version 11.0.11804000
System Description:	Ubuntu 16.04.1 LTS


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  recentf-mode: t
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Message #8 received at 24931 <at> debbugs.gnu.org (full text, mbox):

From: npostavs <at> users.sourceforge.net
To: Robert Marshall <robert <at> capuchin.co.uk>
Cc: 24931 <at> debbugs.gnu.org
Subject: Re: bug#24931: 25.1.50; recentf breaks M-x tetris scoring
Date: Sun, 13 Nov 2016 10:36:40 -0500

tags 24931 unreproducible
quit

Robert Marshall <robert <at> capuchin.co.uk> writes:

> With emacs -Q
> evaluate
> (require 'recentf)
> (recentf-mode t)
>
> and then M-x tetris
>
> just let the blocks pile up to finish quickly, when it completes I
> get the message
>
>    File exists, but cannot be read
>
> when it tries to access the score file and no score gets added - if it
> was going to do so. Without those recentf lines the score file is read
> successfully.
>
> The issue doesn't appear to be dependent upon
> ~/.emacs.d/games/tetris-scores in the recentf list
>
> Robert
>
> In GNU Emacs 25.1.50.6 (x86_64-unknown-linux-gnu, GTK+ Version 3.18.9)
>  of 2016-09-03 built on robert-new-desktop
> Repository revision: 2ad16e4bf9b43c169bcfa1e6240584488fbc3d78
> Windowing system distributor 'The X.Org Foundation', version 11.0.11804000
> System Description:	Ubuntu 16.04.1 LTS

Works for me, scrore shows up with no problems.

Can you get a backtrace if you M-x toggle-debug-on-error?

In GNU Emacs 25.1.50.8 (x86_64-unknown-linux-gnu, X toolkit)
 of 2016-11-06 built on zony
Repository revision: 0b6b8151186e2d8d48aff8182a66aee21a6edb53
Windowing system distributor 'The X.Org Foundation', version 11.0.11804000
Configured using:
 'configure --cache-file=../debug-config.cache 'CFLAGS=-O0 -g3
 -march=native' --enable-checking=yes,glyphs
 --enable-check-lisp-object-type MAKEINFO=makeinfo-4.13a
 --with-x-toolkit=lucid --without-toolkit-scroll-bars --with-gif=no
 --with-jpeg=no'

Message #13 received at 24931 <at> debbugs.gnu.org (full text, mbox):

From: Robert Marshall <robert <at> capuchin.co.uk>
To: npostavs <at> users.sourceforge.net
Cc: 24931 <at> debbugs.gnu.org
Subject: Re: bug#24931: 25.1.50; recentf breaks M-x tetris scoring
Date: Sun, 13 Nov 2016 18:54:39 +0000

npostavs <at> users.sourceforge.net writes:
 > tags 24931 unreproducible
 > quit
 > 
 > Robert Marshall <robert <at> capuchin.co.uk> writes:
 > 
 > > With emacs -Q
 > > evaluate
 > > (require 'recentf)
 > > (recentf-mode t)
 > >
 > > and then M-x tetris
 > >
 > > just let the blocks pile up to finish quickly, when it completes I
 > > get the message
 > >
 > >    File exists, but cannot be read
 > >
 > > when it tries to access the score file and no score gets added - if it
 > > was going to do so. Without those recentf lines the score file is read
 > > successfully.
 > >
 > > The issue doesn't appear to be dependent upon
 > > ~/.emacs.d/games/tetris-scores in the recentf list
 > >
 > > Robert
 > >
 > > In GNU Emacs 25.1.50.6 (x86_64-unknown-linux-gnu, GTK+ Version 3.18.9)
 > >  of 2016-09-03 built on robert-new-desktop
 > > Repository revision: 2ad16e4bf9b43c169bcfa1e6240584488fbc3d78
 > > Windowing system distributor 'The X.Org Foundation', version 11.0.11804000
 > > System Description:	Ubuntu 16.04.1 LTS
 > 
 > Works for me, scrore shows up with no problems.
 > 
 > Can you get a backtrace if you M-x toggle-debug-on-error?
 > 

The 'File exists, but cannot be read' appears to come from files.el
where it doesn't appear to generate an error based on that message -
toggle-debug-on-error gave me nothing

If I set debug-on entry to after-find-file - though I guess that fn is
cleaning up after a problem(?) I get the following traceback (and
continuing doesn't enter that function again)

Debugger entered--entering a function:
* after-find-file(t t)
  find-file-noselect-1(#<buffer tetris-scores> "~/.emacs.d/games/tetris-scores" nil nil "/~/.emacs.d/games/tetris-scores" nil)
  find-file-noselect("/home/robert/.emacs.d/games/tetris-scores" nil nil nil)
  find-file("/home/robert/.emacs.d/games/tetris-scores" nil)
  find-file--read-only(find-file "/home/robert/.emacs.d/games/tetris-scores" nil)
  find-file-read-only("/home/robert/.emacs.d/games/tetris-scores")
  gamegrid-add-score-with-update-game-score-1("tetris-scores" "/home/robert/.emacs.d/games/tetris-scores" 63)
  gamegrid-add-score-with-update-game-score("tetris-scores" 63)
  gamegrid-add-score("tetris-scores" 63)
  tetris-end-game()
  tetris-new-shape()
  tetris-shape-done()
  tetris-update-game(#<buffer *Tetris*>)
  apply(tetris-update-game #<buffer *Tetris*>)
  timer-event-handler([t 22568 41268 554483 0.4 tetris-update-game (#<buffer *Tetris*>) nil 0])

~/.emacs.d/games/tetris-scores definitely exists and is readable by me



> In GNU Emacs 25.1.50.8 (x86_64-unknown-linux-gnu, X toolkit)
 >  of 2016-11-06 built on zony
 > Repository revision: 0b6b8151186e2d8d48aff8182a66aee21a6edb53
 > Windowing system distributor 'The X.Org Foundation', version 11.0.11804000
 > Configured using:
 >  'configure --cache-file=../debug-config.cache 'CFLAGS=-O0 -g3
 >  -march=native' --enable-checking=yes,glyphs
 >  --enable-check-lisp-object-type MAKEINFO=makeinfo-4.13a
 >  --with-x-toolkit=lucid --without-toolkit-scroll-bars --with-gif=no
 >  --with-jpeg=no'
 > 

Message #16 received at 24931 <at> debbugs.gnu.org (full text, mbox):

From: npostavs <at> users.sourceforge.net
To: Robert Marshall <robert <at> capuchin.co.uk>
Cc: 24931 <at> debbugs.gnu.org
Subject: Re: bug#24931: 25.1.50; recentf breaks M-x tetris scoring
Date: Sun, 13 Nov 2016 14:30:29 -0500

Robert Marshall <robert <at> capuchin.co.uk> writes:

> The 'File exists, but cannot be read' appears to come from files.el
> where it doesn't appear to generate an error based on that message -
> toggle-debug-on-error gave me nothing
>
> If I set debug-on entry to after-find-file - though I guess that fn is
> cleaning up after a problem(?) I get the following traceback (and
> continuing doesn't enter that function again)

This traceback is a bit too late I think.  How about toggle-debug-on-signal?

> ~/.emacs.d/games/tetris-scores definitely exists and is readable by me

Does M-: (file-readable-p "~/.emacs.d/games/tetris-scores") agree?

Message #19 received at 24931 <at> debbugs.gnu.org (full text, mbox):

From: Robert Marshall <robert <at> capuchin.co.uk>
To: npostavs <at> users.sourceforge.net
Cc: 24931 <at> debbugs.gnu.org
Subject: Re: bug#24931: 25.1.50; recentf breaks M-x tetris scoring
Date: Sun, 13 Nov 2016 20:19:49 +0000

npostavs <at> users.sourceforge.net writes:
 > Robert Marshall <robert <at> capuchin.co.uk> writes:
 > 
 > > The 'File exists, but cannot be read' appears to come from files.el
 > > where it doesn't appear to generate an error based on that message -
 > > toggle-debug-on-error gave me nothing
 > >
 > > If I set debug-on entry to after-find-file - though I guess that fn is
 > > cleaning up after a problem(?) I get the following traceback (and
 > > continuing doesn't enter that function again)
 > 
 > This traceback is a bit too late I think.  How about toggle-debug-on-signal?
 > 

Oh that's bizarre (even more so than the bug?) it now works -
toggle-debug-on-signal doesn't seem to exist for me but I set
debug-on-signal to t

Maybe it was something there that fixed it, or other things I've tried
I restarted with -Q and now get no cannot be read message

> > ~/.emacs.d/games/tetris-scores definitely exists and is readable by me
 > 
 > Does M-: (file-readable-p "~/.emacs.d/games/tetris-scores") agree?
 > 

It does (and  the tetris-scores~ dating from Feb 2012 also returns t

As I can no longer replicate the problem you'd better close it!

I've got another machine which was exhibiting this problem, if it
still is I'll reopen when I get around to booting it.

Robert
-- 
Robert Marshall               twitter: @rajm

Message #22 received at 24931 <at> debbugs.gnu.org (full text, mbox):

From: npostavs <at> users.sourceforge.net
To: Robert Marshall <robert <at> capuchin.co.uk>
Cc: 24931 <at> debbugs.gnu.org
Subject: Re: bug#24931: 25.1.50; recentf breaks M-x tetris scoring
Date: Sun, 13 Nov 2016 15:55:37 -0500

close 24931 
quit

Robert Marshall <robert <at> capuchin.co.uk> writes:

> npostavs <at> users.sourceforge.net writes:
>  > This traceback is a bit too late I think.  How about toggle-debug-on-signal?
>  > 
>
> Oh that's bizarre (even more so than the bug?) it now works -
> toggle-debug-on-signal doesn't seem to exist for me but I set
> debug-on-signal to t

Oh, sorry, toggle-debug-on-signal indeed does not exist, I should have
said M-: (setq debug-on-signal t).

>
> As I can no longer replicate the problem you'd better close it!
>
> I've got another machine which was exhibiting this problem, if it
> still is I'll reopen when I get around to booting it.

Ok, closing for now.

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