From: James Cownie <jcownie@etnus.com>
To: "H . J . Lu" <hjl@lucon.org>
Cc: Eric Paire <paire@ri.silicomp.fr>,
Andrew Cagney <ac131313@cygnus.com>,
Mark Kettenis <kettenis@science.uva.nl>,
GDB <gdb@sourceware.cygnus.com>
Subject: Re: Is the current gdb 5.1 broken for Linuxthreads?
Date: Fri, 21 Sep 2001 02:27:00 -0000 [thread overview]
Message-ID: <15kMa6-0Je-00@etnus.com> (raw)
Eric wrote :-
> There is no support for MT core dumps.
H.J. replied :-
> Try the current Red Hat kernel/ac kernel. They support it. The patch
> is very small. I am enclosing it here.
However inspection shows that that patch does _not_ implement a
multi-threaded core dump. What it does is to dump a full core file for
each thread.
That seems a somewhat perverse approach, given that
1) the ELF core dump format easily handles a genuine multi-threaded
core dump (cf Solaris, IRIX, ...)
2) debuggers already know how to read such multi-threaded core dumps
and present them as a process with multiple threads.
3) dumping a full core dump for each thread is (to first
approximation) using nthreads too much I/O and nthreads too much
disk space.
What is wanted is a genuine multi-threaded core dump, not this
horror...
-- Jim
James Cownie <jcownie@etnus.com>
Etnus, LLC. +44 117 9071438
http://www.etnus.com
next reply other threads:[~2001-09-21 2:27 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-21 2:27 James Cownie [this message]
2001-09-21 5:04 ` Eric Paire
2001-09-21 5:25 ` James Cownie
2001-09-21 8:35 ` H . J . Lu
2001-09-21 8:39 ` Andrew Cagney
-- strict thread matches above, loose matches on Subject: below --
2001-09-17 12:47 H . J . Lu
[not found] ` <20010917161350.A25349@lucon.org>
2001-09-17 19:13 ` H . J . Lu
2001-09-18 13:56 ` H . J . Lu
2001-09-19 0:46 ` Eli Zaretskii
2001-09-19 8:43 ` H . J . Lu
2001-09-19 6:56 ` Mark Kettenis
2001-09-19 7:39 ` Eric Paire
2001-09-19 9:05 ` H . J . Lu
2001-09-20 0:59 ` Eric Paire
2001-09-19 13:39 ` Andrew Cagney
2001-09-20 1:36 ` Eric Paire
2001-09-20 8:03 ` H . J . Lu
2001-09-20 21:49 ` Eric Paire
2001-09-19 9:10 ` H . J . Lu
2001-09-19 6:32 ` Mark Kettenis
2001-09-19 9:16 ` H . J . Lu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=15kMa6-0Je-00@etnus.com \
--to=jcownie@etnus.com \
--cc=ac131313@cygnus.com \
--cc=gdb@sourceware.cygnus.com \
--cc=hjl@lucon.org \
--cc=kettenis@science.uva.nl \
--cc=paire@ri.silicomp.fr \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox