* Re: nnvirtual problem
2001-01-09 8:54 ` Paul Stevenson
@ 2001-01-09 22:46 ` Dan Christensen
2001-01-10 8:32 ` Paul Stevenson
0 siblings, 1 reply; 9+ messages in thread
From: Dan Christensen @ 2001-01-09 22:46 UTC (permalink / raw)
Cc: ding
Paul Stevenson <p.stevenson@surrey.ac.uk> writes:
> ShengHuo ZHU <zsh@cs.rochester.edu> writes:
>
> > It looks something wrong with sort. Could you evaluate the following
> > in your version of Emacs, i.e. Emacs 20.3?
> >
> > (sort '(963 965 970 981 986 993 995 997 1002 1013 1018 1025 1032 1037
> > 1048 1053 1060 1071 1076 1087 1092 1099 1113 1115 1120 1131 1136 1143
> > 1165 1166 1167 1168) '<)
> >
> > ShengHuo
>
> No error, just:
>
> (963 965 970 981 986 993 995 997 1002 1013 1018 1025 1032 1037 1048 1053 1060 1071 1076 1087 1092 1099 1113 1115 1120 1131 1136 1143 1165 1166 1167 1168)
I had similar problems with calls to sort a long time ago, and this
was the exchange that led Lars to a fix. Hopefully the same kind
of fix will work here.
Dan
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To: ding@gnus.org
Subject: continuing problem with gnus-change-server
From: jdc@chow.mat.jhu.edu (Dan Christensen)
Date: 24 Nov 1997 14:59:36 -0500
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I've been putting off changing nntp servers for a few months, but now I've
got only 7 days before I lose access to old news server. However,
gnus-change-server is still giving me problems, with qgnus 0.14 and
emacs 19.34.1. This has been discussed before, but below there's
something that might provide a hint. Here's a backtrace:
Signaling: (wrong-type-argument number-or-marker-p nil)
<(nil nil)
sort((nil) <)
gnus-move-group-to-server(("sci.math" 4 ((1 . 210029)) ((cache 171741 173689 199399 199778) (tick 171741 173689 199399 199778))) (nntp "mit" (nntp-address "runge.mit.edu") (nntp-open-connection-function nntp-open-rlogin) (nntp-end-of-line "\n") (nntp-rlogin-user-name "jdchrist") (nntp-rlogin-parameters ("telnet" "galois.mit.edu" "nntp"))) (nntp "news.jhu.edu"))
gnus-change-server((nntp "mit" (nntp-address "runge.mit.edu") (nntp-open-connection-function nntp-open-rlogin) (nntp-end-of-line "\n") (nntp-rlogin-user-name "jdchrist") (nntp-rlogin-parameters ("telnet" "galois.mit.edu" "nntp"))) (nntp "news.jhu.edu"))
* call-interactively(gnus-change-server)
execute-extended-command(nil)
call-interactively(execute-extended-command)
If I execute (sort '(nil) '<), emacs successfully returns (nil).
However, if I execute (sort '(nil nil) '<), emacs complains and gives
me the following backtrace, which looks suspiciously like the above
backtrace.
Signaling: (wrong-type-argument number-or-marker-p nil)
<(nil nil)
sort((nil) <)
eval((sort (quote (nil)) (quote <)))
eval-expression((sort (quote (nil)) (quote <)))
call-interactively(eval-expression)
Could gnus be trying to sort a list like (nil nil)? (And can anyone
explain why in the backtrace it says sort((nil) <) rather than
sort((nil nil) <)?)
Dan
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To: ding@gnus.org
Subject: Re: continuing problem with gnus-change-server
References: <x767pioyfr.fsf@chow.mat.jhu.edu>
From: Lars Magne Ingebrigtsen <larsi@gnus.org>
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Date: 25 Nov 1997 19:55:21 +0100
In-Reply-To: jdc@chow.mat.jhu.edu's message of "Mon, 24 Nov 1997 14:59:36 -0500"
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jdc@chow.mat.jhu.edu (Dan Christensen) writes:
> Signaling: (wrong-type-argument number-or-marker-p nil)
> <(nil nil)
> sort((nil) <)
[...]
> If I execute (sort '(nil) '<), emacs successfully returns (nil).
There is something odd about sort. It sometimes works, and sometimes
it doesn't.
> Could gnus be trying to sort a list like (nil nil)?
No.
--
(domestic pets only, the antidote for overdose, milk.)
larsi@gnus.org * Lars Magne Ingebrigtsen
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From: Felix Lee <flee@teleport.com>
Subject: Re: continuing problem with gnus-change-server
To: ding@gnus.org
In-reply-to: Your message of 25 Nov 1997 19:55:21 +0100.
<m37m9whkh2.fsf@sparky.gnus.org>
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> > Signaling: (wrong-type-argument number-or-marker-p nil)
> > <(nil nil)
> > sort((nil) <)
> > If I execute (sort '(nil) '<), emacs successfully returns (nil).
> There is something odd about sort. It sometimes works, and sometimes
> it doesn't.
> > Could gnus be trying to sort a list like (nil nil)?
> No.
hmm. that's the only way I can get this failure in
emacs-20.2. the backtrace is a little misleading though.
(sort '(nil nil nil nil nil) '<)
Signaling: (wrong-type-argument number-or-marker-p nil)
<(nil nil)
sort((nil) <)
eval((sort (quote (nil)) (quote <)))
--
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To: ding@gnus.org
Subject: Re: continuing problem with gnus-change-server
References: <199711281309.FAA01598@mail1.teleport.com>
X-Attribution: Hrvoje
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From: Hrvoje Niksic <hniksic@srce.hr>
Date: 28 Nov 1997 15:55:59 +0100
In-Reply-To: Felix Lee's message of "Fri, 28 Nov 1997 05:11:22 -0800"
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Felix Lee <flee@teleport.com> writes:
> hmm. that's the only way I can get this failure in
> emacs-20.2. the backtrace is a little misleading though.
It all makes sense now. The backtrace is FUBAR because `sort' changes
its first argument destructively!
--
Hrvoje Niksic <hniksic@srce.hr> | Student at FER Zagreb, Croatia
--------------------------------+--------------------------------
ED WILL NOT CORRUPT YOUR PRECIOUS BODILY FLUIDS!!
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To: ding@gnus.org
Subject: Re: continuing problem with gnus-change-server
References: <199711281309.FAA01598@mail1.teleport.com> <kigu3cx9if4.fsf@jagor.srce.hr>
From: Lars Magne Ingebrigtsen <larsi@gnus.org>
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Hrvoje Niksic <hniksic@srce.hr> writes:
> > hmm. that's the only way I can get this failure in
> > emacs-20.2. the backtrace is a little misleading though.
>
> It all makes sense now. The backtrace is FUBAR because `sort' changes
> its first argument destructively!
Ah! It all makes sense now.
One more of life's big mysteries solved. I'll slap some `(delq nil ...)'
around some lists that I feed to sort, and Bob's your uncle.
(Whatever that means.)
--
(domestic pets only, the antidote for overdose, milk.)
larsi@gnus.org * Lars Magne Ingebrigtsen
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