From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262119AbVGVRRI (ORCPT ); Fri, 22 Jul 2005 13:17:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262124AbVGVRRI (ORCPT ); Fri, 22 Jul 2005 13:17:08 -0400 Received: from flawless.real.com ([207.188.23.141]:29858 "EHLO flawless.real.com") by vger.kernel.org with ESMTP id S262119AbVGVRRC (ORCPT ); Fri, 22 Jul 2005 13:17:02 -0400 Date: Fri, 22 Jul 2005 10:16:57 -0700 From: Tom Marshall To: linux-kernel@vger.kernel.org Cc: pmarques@grupopie.com Subject: itimer oddness in 2.6.12 Message-ID: <20050722171657.GG4311@real.com> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=_flawless.real.com-17186-1122052615-0001-2" Content-Disposition: inline User-Agent: Mutt/1.5.9i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org This is a MIME-formatted message. If you see this text it means that your E-mail software does not support MIME-formatted messages. --=_flawless.real.com-17186-1122052615-0001-2 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable The patch to fix "setitimer timer expires too early" is causing issues for the Helix server. We have a timer processs that updates the server's timestamp on an itimer and it expects the signal to be delivered at roughly the interval retrieved from getitimer. This is very consistent on every platform, including Linux up to 2.6.11, but breaks on 2.6.12. On 2.6.12, setting the itimer to 10ms and retrieving the actual interval from getitimer reports 10.998ms, but the timer interrupts are consistently delivered at roughly 11.998ms. This behavior was pointed out as problematic in the patch submission: http://www.kernel.org/hg/linux-2.6/?cmd=3Dchangeset;node=3D36e9195dc9f434= 67671344332f4c342f183647f7 Would it be possible to resolve this discrepancy for 2.6.13? Please cc: me on replies, I am not subscribed. --=20 I stayed up all night playing poker with tarot cards. I got a full house and four people died. -- Steven Wright --=_flawless.real.com-17186-1122052615-0001-2 Content-Type: application/pgp-signature; name="signature.asc" Content-Transfer-Encoding: 7bit Content-Description: Digital signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) iD8DBQFC4SoJqznSmcYu2m8RAh7GAJ9gFTryhNkq3g2SKV9kKb+BG/XDGACcCXMh yZAIqBG1+mPvrtJ+atlDBzo= =Yiv4 -----END PGP SIGNATURE----- --=_flawless.real.com-17186-1122052615-0001-2--