From: Ingo Molnar <mingo@redhat.com>
To: Andrew Morton <akpm@osdl.org>
Cc: Zwane Mwaikambo <zwane@linuxpower.ca>,
linux-kernel@vger.kernel.org, mingo@elte.hu
Subject: Re: 2.6.8-rc2-mm1
Date: Sun, 1 Aug 2004 07:05:17 -0400 (EDT) [thread overview]
Message-ID: <Pine.LNX.4.58.0408010701460.23711@devserv.devel.redhat.com> (raw)
In-Reply-To: <20040731114714.37359c2d.akpm@osdl.org>
On Sat, 31 Jul 2004, Andrew Morton wrote:
> > Ingo i believe you have a patch for this, could you push it to Andrew?
>
> I suspect Ingo's patch will be livelockable under some circumstances.
the first versions were - i could even reproduce it. Fixed it up by doing
less work in this function. But i like your solution of rotating the list
too. Anyway, the -M5 patch shouldnt be livelockable. (but it might have
the crash problem).
btw., breaking the outer loop here is not enough for latencies, it needs
to happen in the inner loop. (which can take thousands of iterations too.)
See the checkpoint.c bits of the -M5 patch:
http://people.redhat.com/mingo/voluntary-preempt/voluntary-preempt-2.6.8-rc2-mm1-M5
Ingo
next prev parent reply other threads:[~2004-08-01 11:06 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-28 9:04 2.6.8-rc2-mm1 Andrew Morton
2004-07-28 16:36 ` 2.6.8-rc2-mm1 Jesse Barnes
2004-07-28 17:08 ` 2.6.8-rc2-mm1 (compile stats) John Cherry
2004-07-28 19:37 ` 2.6.8-rc2-mm1 Peter Osterlund
2004-07-28 22:24 ` 2.6.8-rc2-mm1 Johannes Stezenbach
2004-07-28 22:44 ` 2.6.8-rc2-mm1 viro
2004-07-28 23:24 ` 2.6.8-rc2-mm1 Johannes Stezenbach
2004-07-28 23:34 ` 2.6.8-rc2-mm1 Andrew Morton
2004-07-29 0:08 ` 2.6.8-rc2-mm1 Johannes Stezenbach
2004-07-29 6:42 ` 2.6.8-rc2-mm1 Andrew Morton
2004-07-29 19:35 ` 2.6.8-rc2-mm1 Michael Hunold
2004-07-29 21:02 ` 2.6.8-rc2-mm1 Andrew Morton
2004-07-28 22:49 ` 2.6.8-rc2-mm1 Adam Kropelin
2004-07-28 23:20 ` 2.6.8-rc2-mm1 Andrew Morton
2004-07-28 23:13 ` 2.6.8-rc2-mm1 Paul Jackson
2004-07-29 14:36 ` 2.6.8-rc2-mm1 Adrian Bunk
2004-07-29 19:36 ` 2.6.8-rc2-mm1 David Woodhouse
2004-07-29 14:41 ` 2.6.8-rc2-mm1: NTFS compile error with gcc 2.95 Adrian Bunk
2004-07-29 15:54 ` Jan-Benedict Glaw
2004-07-29 20:42 ` [patch] " Adrian Bunk
[not found] ` <Pine.LNX.4.60.0407292249120.25661@hermes-1.csi.cam.ac.uk>
2004-07-29 23:18 ` Adrian Bunk
2004-07-29 21:27 ` 2.6.8-rc2-mm1: DVB: "errno" undefined Adrian Bunk
2004-07-29 22:44 ` Kenneth Aafløy
2004-07-29 23:24 ` Adrian Bunk
2004-07-30 14:30 ` Arnd Bergmann
2004-07-31 10:09 ` 2.6.8-rc2-mm1 breaks PPPoE for me (was: 2.6.8-rc2-mm1) Matthias Andree
2004-07-31 16:39 ` 2.6.8-rc2-mm1 Zwane Mwaikambo
2004-07-31 18:47 ` 2.6.8-rc2-mm1 Andrew Morton
2004-07-31 19:54 ` 2.6.8-rc2-mm1 Zwane Mwaikambo
2004-07-31 20:09 ` 2.6.8-rc2-mm1 Zwane Mwaikambo
2004-07-31 20:21 ` 2.6.8-rc2-mm1 Andrew Morton
2004-08-01 4:21 ` 2.6.8-rc2-mm1 Zwane Mwaikambo
2004-08-01 11:16 ` 2.6.8-rc2-mm1 Ingo Molnar
2004-08-01 11:05 ` Ingo Molnar [this message]
2004-08-01 2:36 ` 2.6.8-rc2-mm1 William Lee Irwin III
2004-08-01 8:05 ` 2.6.8-rc2-mm1 Andrew Morton
2004-08-01 12:33 ` 2.6.8-rc2-mm1 William Lee Irwin III
2004-08-01 21:11 ` 2.6.8-rc2-mm1 Sam Ravnborg
2004-08-01 23:57 ` 2.6.8-rc2-mm1 William Lee Irwin III
2004-08-03 20:46 ` 2.6.8-rc2-mm1 Sam Ravnborg
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=Pine.LNX.4.58.0408010701460.23711@devserv.devel.redhat.com \
--to=mingo@redhat.com \
--cc=akpm@osdl.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=zwane@linuxpower.ca \
/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
Powered by JetHome