From: Luca Barbieri <ldb@ldb.ods.org>
To: Ulrich Drepper <drepper@redhat.com>
Cc: Linus Torvalds <torvalds@transmeta.com>,
Ingo Molnar <mingo@elte.hu>,
Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [patch] threading fix, tid-2.5.47-A3
Date: 18 Nov 2002 09:30:52 +0100 [thread overview]
Message-ID: <1037608252.1774.49.camel@ldb> (raw)
In-Reply-To: <3DD8657E.7020203@redhat.com>
[-- Attachment #1: Type: text/plain, Size: 704 bytes --]
> I don't walk the thread descriptors. I don't write into them. I move
> entire double-linked lists with a dozen or so instructions. Regardless
> of how many threads were active in the parent.
However this would cause a lot of copy-on-write faults on thread stacks
when other thread resume execution.
How about adding a MAP_DONTCOPY flag to mmap, using it for the thread
stacks and then adding yet another flag and pointer to the clone
syscall, pointing to a userspace array of addresses and flags, allowing
to specify whether vmas should be copied, ignored (or maybe shared, as a
future extension) so that userspace could specify that the current
thread stack should be copied anyway?
[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 189 bytes --]
next prev parent reply other threads:[~2002-11-18 8:24 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <3DD7E3E7.6040403@redhat.com>
2002-11-17 18:54 ` [patch] threading fix, tid-2.5.47-A3 Linus Torvalds
2002-11-17 20:18 ` Ingo Molnar
2002-11-17 20:37 ` Ingo Molnar
2002-11-17 19:54 ` Luca Barbieri
2002-11-17 21:17 ` Ingo Molnar
2002-11-17 20:16 ` Luca Barbieri
2002-11-17 21:45 ` Ingo Molnar
2002-11-17 20:35 ` Ulrich Drepper
2002-11-17 20:44 ` Jamie Lokier
2002-11-17 20:49 ` Luca Barbieri
2002-11-17 22:08 ` Ingo Molnar
2002-11-17 23:00 ` Linus Torvalds
2002-11-17 23:23 ` Ulrich Drepper
2002-11-18 1:33 ` Linus Torvalds
2002-11-18 3:33 ` Ulrich Drepper
2002-11-18 3:43 ` Linus Torvalds
2002-11-18 3:58 ` Ulrich Drepper
2002-11-18 4:11 ` Linus Torvalds
2002-11-18 4:31 ` Ulrich Drepper
2002-11-18 6:46 ` Ulrich Drepper
2002-11-18 16:00 ` Linus Torvalds
2002-11-18 8:07 ` Luca Barbieri
2002-11-18 8:21 ` Ulrich Drepper
2002-11-18 8:27 ` Luca Barbieri
2002-11-18 9:30 ` [patch] threading enhancements, tid-2.5.47-C0 Ingo Molnar
2002-11-18 8:29 ` Luca Barbieri
2002-11-18 12:12 ` Ingo Molnar
2002-11-18 12:11 ` Luca Barbieri
2002-11-20 1:40 ` Ulrich Drepper
2002-11-20 1:59 ` Linus Torvalds
2002-11-20 3:37 ` Jamie Lokier
2002-11-20 4:04 ` Ulrich Drepper
2002-11-20 21:55 ` Jamie Lokier
2002-11-20 22:11 ` Ulrich Drepper
2002-11-20 23:26 ` Jamie Lokier
2002-11-20 23:28 ` Ulrich Drepper
2002-11-21 0:18 ` Jamie Lokier
2002-11-21 9:13 ` Ingo Molnar
2002-11-21 12:07 ` Jamie Lokier
2002-11-21 0:37 ` Jamie Lokier
2002-11-20 8:50 ` Ingo Molnar
2002-11-20 9:51 ` [patch] threading enhancements, tid-2.5.48-A1 Ingo Molnar
2002-11-20 8:41 ` Ulrich Drepper
2002-11-20 20:20 ` Luca Barbieri
2002-11-21 18:03 ` [patch] threading enhancements, tid-2.5.48-C0 Ingo Molnar
2002-11-21 19:30 ` Luca Barbieri
2002-11-18 8:30 ` Luca Barbieri [this message]
2002-11-18 12:21 ` [patch] threading fix, tid-2.5.47-A3 Ingo Molnar
2002-11-18 12:50 ` Luca Barbieri
2002-11-18 12:26 ` Ingo Molnar
2002-11-18 13:20 ` Alan Cox
2002-11-18 13:03 ` Luca Barbieri
2002-11-18 16:24 ` Linus Torvalds
2002-11-18 16:42 ` Ingo Molnar
2002-11-18 1:46 ` Jamie Lokier
2002-11-18 3:40 ` Ulrich Drepper
2002-11-18 22:22 ` Jamie Lokier
2002-11-17 23:37 ` Ulrich Drepper
2002-11-17 12:40 Ingo Molnar
2002-11-17 11:57 ` Luca Barbieri
2002-11-17 13:36 ` Ingo Molnar
2002-11-17 13:49 ` Ingo Molnar
2002-11-17 13:29 ` Luca Barbieri
2002-11-17 17:28 ` Linus Torvalds
2002-11-17 19:03 ` Ulrich Drepper
2002-11-17 19:19 ` Ingo Molnar
2002-11-17 19:31 ` Ingo Molnar
2002-11-17 18:27 ` Linus Torvalds
2002-11-17 20:13 ` Ingo Molnar
2002-11-17 20:01 ` Jamie Lokier
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=1037608252.1774.49.camel@ldb \
--to=ldb@ldb.ods.org \
--cc=drepper@redhat.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=torvalds@transmeta.com \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.