GNU bug report logs - #42160
Issue with Man-kill and background process.

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From: Eli Zaretskii <eliz <at> gnu.org>
To: spacibba <at> aol.com
Cc: 42160 <at> debbugs.gnu.org
Subject: bug#42160: Issue with Man-kill and background process.
Date: Sat, 18 Jul 2020 10:46:07 +0300

Ping! Ping!

Jimmy, could you please try this patch and see if it fixes your
problems?  If it does, I' d like to install it.

> Date: Fri, 10 Jul 2020 09:59:58 +0300
> From: Eli Zaretskii <eliz <at> gnu.org>
> Cc: 42160 <at> debbugs.gnu.org
> 
> Ping!
> 
> > Date: Fri, 03 Jul 2020 11:02:08 +0300
> > From: Eli Zaretskii <eliz <at> gnu.org>
> > Cc: 42160 <at> debbugs.gnu.org
> > 
> > > Date: Thu, 2 Jul 2020 04:23:09 +0200
> > > From: Ergus via "Bug reports for GNU Emacs,
> > >  the Swiss army knife of text editors" <bug-gnu-emacs <at> gnu.org>
> > > 
> > > When using man with big manuals (like gcc). There is an error when
> > > trying to quit with k just after opening the manual.
> > > This seems to be related with the formating process that is running in
> > > the background.
> > > 
> > > To reproduce the issue:
> > > 
> > > emacs -Q
> > > M-x toggle-debug-on-error RET
> > > M-x man RET
> > > gcc RET
> > > k
> > > 
> > > And I get this error message:
> > > 
> > > Debugger entered--Lisp error: (wrong-type-argument stringp nil)
> > >   Man-bgproc-filter(#<process man> "nt, there is no need to use address spaces like \"_...")
> > 
> > Thanks.  Does the patch below fix this?
> > 
> > diff --git a/lisp/man.el b/lisp/man.el
> > index 5278a1a..bc8fd45 100644
> > --- a/lisp/man.el
> > +++ b/lisp/man.el
> > @@ -1392,7 +1392,7 @@ Man-bgproc-filter
> >  command is run.  Second argument STRING is the entire string of output."
> >    (save-excursion
> >      (let ((Man-buffer (process-buffer process)))
> > -      (if (null (buffer-name Man-buffer)) ;; deleted buffer
> > +      (if (not (buffer-live-p Man-buffer)) ;; deleted buffer
> >  	  (set-process-buffer process nil)
> >  
> >  	(with-current-buffer Man-buffer
> > @@ -1426,7 +1426,7 @@ Man-bgproc-sentinel
> >  	(delete-buff nil)
> >  	message)
> >  
> > -    (if (null (buffer-name Man-buffer)) ;; deleted buffer
> > +    (if (not (buffer-live-p Man-buffer)) ;; deleted buffer
> >  	(or (stringp process)
> >  	    (set-process-buffer process nil))
> >  
> > 
> > 
> > 
> > 
> 
> 
> 
> 

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