GNU bug report logs - #26021
25.1; GDB/GUD tooltip error

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

From: Live System User <nyc4bos <at> aol.com>
To: bug-gnu-emacs <at> gnu.org
Subject: 25.1; GDB/GUD tooltip error
Date: Tue, 07 Mar 2017 18:53:34 -0500

Hi,

        Not sure how to get a reproducible recipe but while in
        GDB when I do something like C-x C-f (find-file),
        sometimes I get the folloeing error:

Debugger entered--Lisp error: (wrong-type-argument markerp nil)
  marker-buffer(nil)
  (eq (tooltip-event-buffer gud-tooltip-event) (marker-buffer gud-overlay-arrow-position))
  (and (eq (tooltip-event-buffer gud-tooltip-event) (marker-buffer gud-overlay-arrow-position)))
  eval((and (eq (tooltip-event-buffer gud-tooltip-event) (marker-buffer gud-overlay-arrow-position))))
  gud-tooltip-tips((mouse-movement (#<window 12 on *Backtrace*> 2258 (709 . 70) 227820838 nil 2258 (74 . 3) nil (304 . 16) (9 . 18))))
  run-hook-with-args-until-success(gud-tooltip-tips (mouse-movement (#<window 12 on *Backtrace*> 2258 (709 . 70) 227820838 nil 2258 (74 . 3) nil (304 . 16) (9 . 18))))
  tooltip-timeout(nil)
  apply(tooltip-timeout nil)
  timer-event-handler([t 22719 16734 511876 nil tooltip-timeout (nil) nil 929999])


    Thanks.



In GNU Emacs 25.1.1 (x86_64-redhat-linux-gnu, GTK+ Version 3.20.9)
 of 2016-10-13 built on buildvm-05.phx2.fedoraproject.org
Windowing system distributor 'Fedora Project', version 11.0.11803000
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Important settings:
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Major mode: Summary

Minor modes in effect:
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Message #8 received at 26021 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Live System User <nyc4bos <at> aol.com>
Cc: 26021 <at> debbugs.gnu.org
Subject: Re: bug#26021: 25.1; GDB/GUD tooltip error
Date: Wed, 08 Mar 2017 18:10:42 +0200

> From: Live System User <nyc4bos <at> aol.com>
> Date: Tue, 07 Mar 2017 18:53:34 -0500
> 
>         Not sure how to get a reproducible recipe but while in
>         GDB when I do something like C-x C-f (find-file),
>         sometimes I get the folloeing error:
> 
> Debugger entered--Lisp error: (wrong-type-argument markerp nil)
>   marker-buffer(nil)
>   (eq (tooltip-event-buffer gud-tooltip-event) (marker-buffer gud-overlay-arrow-position))
>   (and (eq (tooltip-event-buffer gud-tooltip-event) (marker-buffer gud-overlay-arrow-position)))
>   eval((and (eq (tooltip-event-buffer gud-tooltip-event) (marker-buffer gud-overlay-arrow-position))))
>   gud-tooltip-tips((mouse-movement (#<window 12 on *Backtrace*> 2258 (709 . 70) 227820838 nil 2258 (74 . 3) nil (304 . 16) (9 . 18))))
>   run-hook-with-args-until-success(gud-tooltip-tips (mouse-movement (#<window 12 on *Backtrace*> 2258 (709 . 70) 227820838 nil 2258 (74 . 3) nil (304 . 16) (9 . 18))))
>   tooltip-timeout(nil)
>   apply(tooltip-timeout nil)
>   timer-event-handler([t 22719 16734 511876 nil tooltip-timeout (nil) nil 929999])

Does it help to add the condition

   (markerp gud-overlay-arrow-position)

to the expression that is the value of the gud-tooltip-display
defcustom?

Message #11 received at 26021 <at> debbugs.gnu.org (full text, mbox):

From: Live System User <nyc4bos <at> aol.com>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 26021 <at> debbugs.gnu.org
Subject: Re: bug#26021: 25.1; GDB/GUD tooltip error
Date: Thu, 16 Mar 2017 20:30:07 -0400

Eli Zaretskii <eliz <at> gnu.org> writes:

>> From: Live System User <nyc4bos <at> aol.com>
>> Date: Tue, 07 Mar 2017 18:53:34 -0500
>> 
>>         Not sure how to get a reproducible recipe but while in
>>         GDB when I do something like C-x C-f (find-file),
>>         sometimes I get the folloeing error:
>> 
>> Debugger entered--Lisp error: (wrong-type-argument markerp nil)
>>   marker-buffer(nil)
>>   (eq (tooltip-event-buffer gud-tooltip-event) (marker-buffer gud-overlay-arrow-position))
>>   (and (eq (tooltip-event-buffer gud-tooltip-event) (marker-buffer gud-overlay-arrow-position)))
>>   eval((and (eq (tooltip-event-buffer gud-tooltip-event) (marker-buffer gud-overlay-arrow-position))))
>>   gud-tooltip-tips((mouse-movement (#<window 12 on *Backtrace*> 2258 (709 . 70) 227820838 nil 2258 (74 . 3) nil (304 . 16) (9 . 18))))
>>   run-hook-with-args-until-success(gud-tooltip-tips (mouse-movement (#<window 12 on *Backtrace*> 2258 (709 . 70) 227820838 nil 2258 (74 . 3) nil (304 . 16) (9 . 18))))
>>   tooltip-timeout(nil)
>>   apply(tooltip-timeout nil)
>>   timer-event-handler([t 22719 16734 511876 nil tooltip-timeout (nil) nil 929999])
>
> Does it help to add the condition
>
>    (markerp gud-overlay-arrow-position)
>
> to the expression that is the value of the gud-tooltip-display
> defcustom?

      I added:
  
(add-to-list 'gud-tooltip-display '(markerp gud-overlay-arrow-position))

      yielding:

gud-tooltip-display is a variable defined in ‘gud.el.gz’.
[...]
Value: ((markerp gud-overlay-arrow-position)
 (eq
  (tooltip-event-buffer gud-tooltip-event)
  (marker-buffer gud-overlay-arrow-position)))


      to my GDB initiatizations and will see if I get the error again.

      Thanks.

Message #14 received at 26021 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Live System User <nyc4bos <at> aol.com>
Cc: 26021 <at> debbugs.gnu.org
Subject: Re: bug#26021: 25.1; GDB/GUD tooltip error
Date: Fri, 17 Mar 2017 10:27:56 +0200

> From: Live System User <nyc4bos <at> aol.com>
> Cc: 26021 <at> debbugs.gnu.org
> Date: Thu, 16 Mar 2017 20:30:07 -0400
> 
> > Does it help to add the condition
> >
> >    (markerp gud-overlay-arrow-position)
> >
> > to the expression that is the value of the gud-tooltip-display
> > defcustom?
> 
>       I added:
>   
> (add-to-list 'gud-tooltip-display '(markerp gud-overlay-arrow-position))
> 
>       yielding:
> 
> gud-tooltip-display is a variable defined in ‘gud.el.gz’.
> [...]
> Value: ((markerp gud-overlay-arrow-position)
>  (eq
>   (tooltip-event-buffer gud-tooltip-event)
>   (marker-buffer gud-overlay-arrow-position)))
> 
> 
>       to my GDB initiatizations and will see if I get the error again.

I think you need

  (and (markerp gud-overlay-arrow-position)
       (eq
        (tooltip-event-buffer gud-tooltip-event)
	(marker-buffer gud-overlay-arrow-position)))

instead.

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