From: Reiner Steib <reinersteib+gmane@imap.cc>
To: Richard Stallman <rms@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: 23.0.50; crash in xdisp.c:15094
Date: Wed, 24 Oct 2007 09:26:28 +0200 [thread overview]
Message-ID: <v9lk9t6kij.fsf@marauder.physik.uni-ulm.de> (raw)
In-Reply-To: <E1IkNx8-0004I0-Pm@fencepost.gnu.org> (Richard Stallman's message of "Tue, 23 Oct 2007 13:54:06 -0400")
On Tue, Oct 23 2007, Richard Stallman wrote:
> Can you reproduce this?
No. I don't even remember what I did just before the crash.
> Did you compile with -fno-cross-jump?
No, I compiled with the default options.
> If so, this line number
> #1 0x08084463 in try_window_id (w=0xa9063c8)
> at [...]/cvs-HEAD/emacs/src/xdisp.c:15094
> is meaningful. Otherwise it is meaningless.
>
> #36 0x08159558 in Fbuffer_substring (start=0, end=24)
>
> That is a real error, passing 0 for START.
>
> #77 0x08159558 in Fbuffer_substring (start=0, end=24)
>
> That is a real error, passing 0 for START.
>
> What Lisp code called Fbuffer_substring in frame 36?
> What Lisp code called it in frame 77?
>
> #49 0x08161eb1 in Ffuncall (nargs=2, args=0xbf8834e0)
> at [...]/cvs-HEAD/emacs/src/eval.c:3074
> #50 0x0815f31d in Fcall_interactively (function=137987217,
> record_flag=137554121, keys=137602396)
> at [...]/cvs-HEAD/emacs/src/callint.c:841
>
> What command is being called there, with what argument?
> And why was it called? Did you run it with keyboard commands?
I'm not sure what you mean with "run it with keyboard commands".
> What command was called that entered the debugger in the outer
> invocation?
I will try to investigate this in the evening. However, I'm not
experienced in C-level debugging (especially of Emacs code). It would
safe us some much time if someone could write down the relevant gdb
commands for the current situation. In the past, I sometimes
misinterpreted the textual descriptions so I provide useless
information to the list.
> `bt full' is rather useless in Emacs. It is almost not worth using.
`bt full' is suggested by `M-x report-emacs-bug RET', maybe it should
be changed?
,----[ M-x report-emacs-bug RET ]
| If Emacs crashed, and you have the Emacs process in the gdb debugger,
| please include the output from the following gdb commands:
| `bt full' and `xbacktrace'.
`----
> To get the important info, you need to go to the interesting frames,
> then use `pr' to print the crucial Lisp objects in Lisp syntax.
>
> Please see etc/DEBUG for more advice.
I will try to follow the instructions in "Getting Lisp-level backtrace
information within GDB".
Bye, Reiner.
--
PGP key available http://rsteib.home.pages.de/
next prev parent reply other threads:[~2007-10-24 7:26 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-22 19:09 23.0.50; crash in xdisp.c:15094 Reiner Steib
[not found] ` <E1IkNx8-0004I0-Pm@fencepost.gnu.org>
2007-10-24 7:26 ` Reiner Steib [this message]
2007-10-25 2:10 ` Richard Stallman
2007-10-26 20:14 ` Reiner Steib
2007-10-27 13:57 ` Richard Stallman
2007-10-27 19:14 ` Reiner Steib
2007-10-28 13:50 ` Richard Stallman
2007-10-28 15:52 ` Reiner Steib
2007-10-29 9:21 ` Richard Stallman
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