From: Stephen Berman <Stephen.Berman@gmx.net>
To: gdb@sources.redhat.com
Subject: Re: GDB cannot access memory after Emacs abort
Date: Tue, 13 Nov 2007 22:40:00 -0000 [thread overview]
Message-ID: <87fxz9dbks.fsf@escher.local.home> (raw)
In-Reply-To: <1194844555.16917.319.camel@localhost.localdomain>
On Sun, 11 Nov 2007 21:15:55 -0800 Michael Snyder <msnyder@specifix.com> wrote:
> On Mon, 2007-11-12 at 00:01 +0100, Stephen Berman wrote:
>> On Sun, 11 Nov 2007 09:44:23 +0200 Eli Zaretskii <eliz@gnu.org> wrote:
>>
>> > the upshot of all this is that `bt' doesn't
>> > work, as shown below:
>> >
>> >> > > (gdb) bt
>> >> > > #0 abort () at emacs.c:431
>> >> > > Cannot access memory at address 0xbfd6836c
>> >> > > Cannot access memory at address 0x8321b6c
>> >
[...]
> I wonder -- after the above happens, what do you get if you
> type the following at the (gdb) prompt:
>
> x /i $eip
After the abort occurs, the desktop locks up, I switch to a virtual tty
and kill -9 the emacs process, releasing the desktop, then type what you
said at the gdb prompt and get this:
0x80f9e56 <abort+6>: Cannot access memory at address 0x80f9e56
In this case, bt returned this:
Cannot access memory at address 0xbf855e4c
Cannot access memory at address 0x8322c0c
> If you get the same error (Cannot access memory at ...),
> then perhaps gdb has lost contact with the child process
> entirely, and cannot access *any* memory.
Yes, this is also what Jim Blandy surmised. But, as I ask in my
response to Blandy, why does the desktop lock up only happen when the
emacs abort is induced while running under gdb?
Steve Berman
next prev parent reply other threads:[~2007-11-13 22:40 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 [this message]
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
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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