From: Stephen Berman <Stephen.Berman@gmx.net>
To: gdb@sources.redhat.com
Subject: Re: GDB cannot access memory after Emacs abort
Date: Wed, 14 Nov 2007 09:48:00 -0000 [thread overview]
Message-ID: <877ikli2ev.fsf@escher.local.home> (raw)
In-Reply-To: <1194995136.12695.31.camel@localhost.localdomain>
On Tue, 13 Nov 2007 15:05:36 -0800 Michael Snyder <msnyder@specifix.com> wrote:
> On Tue, 2007-11-13 at 23:28 +0100, Stephen Berman wrote:
[...]
>> Note, however, that this only happens when running emacs under gdb; if I
>> start emacs directly from the shell, induce the abort, then the Emacs
>> window vanishes, but the desktop remains responsive and no other
>> problems are apparent.
>
> Well that's understandable. emacs has grabbed the focus, presumably
> something you are only supposed to do for a brief interval. If emacs
> aborts, it will let go of the focus when it dies, but if gdb stops it
> from dying, it can't let go of the focus.
>
> This would happen with any resource that a debugged program
> had a lock on. You can create deadlocks when you debug things
> that have locks on resources.
>
> That's a fact of life.
Ok, I understand this now.
>> > Am I correct in understanding that:
>> > - your X session locks up, and all your windows are unresponsive, not
>> > just GDB's and Emacs
>>
>> Yes, all open X apps are unresponsive to keyboard or mouse input, but
>> the apps continue to operate normally, e.g., the newsticker scrolls, the
>> displays in gkrellm (time, CPU activity, free memory, etc.) continue to
>> be updated.
>
> I would prefer if we could set this issue aside.
> I don't believe it is a gdb issue. The backtrace
> issue is what we should discuss.
See my followup to your suggestion to attach the emacs process to gdb.
Steve Berman
next prev parent reply other threads:[~2007-11-14 9:48 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <87r6j6rvn3.fsf@escher.local.home>
2007-11-10 23:50 ` Stephen Berman
2007-11-11 6:46 ` Michael Snyder
2007-11-11 7:44 ` Eli Zaretskii
2007-11-11 23:05 ` Stephen Berman
2007-11-12 4:18 ` Eli Zaretskii
2007-11-12 5:24 ` Michael Snyder
2007-11-13 22:40 ` Stephen Berman
2007-11-13 23:20 ` Michael Snyder
2007-11-13 23:28 ` Dan Nicolaescu
2007-11-14 10:00 ` Stephen Berman
2007-11-13 23:57 ` Andreas Schwab
2007-11-11 19:22 ` Daniel Jacobowitz
2007-11-11 23:10 ` Stephen Berman
2007-11-12 0:39 ` Daniel Jacobowitz
2007-11-12 17:47 ` Jim Blandy
2007-11-12 19:44 ` Andreas Schwab
2007-11-13 22:36 ` Stephen Berman
2007-11-13 22:34 ` Stephen Berman
2007-11-13 23:14 ` Michael Snyder
2007-11-14 9:48 ` Stephen Berman [this message]
2007-11-13 23:51 ` Andreas Schwab
2007-11-12 7:39 ` Vladimir Prus
2007-11-13 22:36 ` Stephen Berman
2007-11-13 23:24 ` Michael Snyder
2007-11-14 9:50 ` Stephen Berman
2007-11-14 12:00 ` Michael Snyder
2007-11-14 19:24 ` Stephen Berman
2007-11-15 1:00 ` Michael Snyder
2007-11-11 23:01 ` Stephen Berman
2007-11-12 5:15 ` Michael Snyder
2007-11-14 9:55 ` Stephen Berman
2007-11-14 12:00 ` Michael Snyder
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