From: Richard Stallman <rms@gnu.org>
Cc: bruce@perens.com, emacs-devel@gnu.org
Subject: Re: <EMACS> Re: emacs21.2 freezes on hp when calling visible-bell
Date: Wed, 27 Mar 2002 21:56:43 -0700 (MST) [thread overview]
Message-ID: <200203280456.g2S4uhL09617@aztec.santafe.edu> (raw)
In-Reply-To: <15520.21118.37291.222389@vaire.esat.kuleuven.ac.be> (message from Maarten Vergauwen on Tue, 26 Mar 2002 11:50:38 +0100)
I am amazed that gettimeofday can hang. I have no idea why. Perhaps
you need to find an HP wizard for this. Maybe Bruce Perens can help.
From: Maarten Vergauwen <Maarten.Vergauwen@esat.kuleuven.ac.be>
Date: Tue, 26 Mar 2002 11:50:38 +0100
To: rms@santafe.edu
Subject: Re: <EMACS> Re: emacs21.2 freezes on hp when calling visible-bell
In-Reply-To: <200203221226.NAA05825@barbar.esat.kuleuven.ac.be>
Richard Stallman writes:
> This happens only on hp, using X and only for 21.2. No problems
> encountered for 21.1 on hp, nor for 21.2 on hp without X, nor for 21.2
> on SGI, linux-i386, alpha, solaris or ultrix with X.
>
> Unfortunately that means I can't even try to debug it.
> Can you please try to debug it? etc/DEBUG gives some advice.
OK, here goes.
1. If emacs is run under gdb, it hangs when trying to "flash" the visible
bell.
2. kill -TSTP pid in another shell
3. gdb tells me that it's hanging in gettimeofday()
(gdb) bt
#0 0x7f7aeac8 in gettimeofday () from /usr/lib/libc.2
#1 0x179948 in alarm_signal_handler (signo=14) at atimer.c:372
#2 <signal handler called>
#3 0x7f794384 in fwrite () from /usr/lib/libc.2
#4 0xd0158 in main (argc=2139029609, argv=0x7f7f061c, envp=0x8)
at emacs.c:1547
4. I added lots of fprintf(stderr,...) stuff to the code in xterm.c
(function XTflash) and in this way I could determine that emacs was
hanging on the line that says:
select (0, NULL, NULL, NULL, &timeout);
A strange thing is that the loop with "select" is sometimes executed 1,
2, 3 times before it hangs at this line.
5. I reconfigured and recompiled emacs-21.1 on the same system, with the
same compiler and here the problem doesn't occur.
I'm at a loss here. Could you tell me what else I could try to find the
source of the problem ?
kind regards,
Maarten
--
MAARTEN VERGAUWEN
K.U.Leuven - ESAT-PSI tel: +32-16-32.10.64 fax: +32-16-32.17.23
Kasteelpark Arenberg 10 e-mail:Maarten.Vergauwen@esat.kuleuven.ac.be
B-3001 Heverlee http://www.esat.kuleuven.ac.be/~vergauwe
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next prev parent reply other threads:[~2002-03-28 4:56 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <200203201517.QAA07702@demer.esat.kuleuven.ac.be>
2002-03-21 6:08 ` emacs21.2 freezes on hp when calling visible-bell Eli Zaretskii
[not found] ` <200203221225.g2MCPoE01638@aztec.santafe.edu>
[not found] ` <200203221226.NAA05825@barbar.esat.kuleuven.ac.be>
[not found] ` <15520.21118.37291.222389@vaire.esat.kuleuven.ac.be>
2002-03-28 4:56 ` Richard Stallman [this message]
2002-03-28 5:22 ` <EMACS> " Bruce Perens
2002-03-28 9:11 ` Maarten Vergauwen
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