From owner-freebsd-stable@FreeBSD.ORG Fri Aug 30 06:50:22 2013 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 20E3EB00; Fri, 30 Aug 2013 06:50:22 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-we0-x22e.google.com (mail-we0-x22e.google.com [IPv6:2a00:1450:400c:c03::22e]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 8151D2A32; Fri, 30 Aug 2013 06:50:21 +0000 (UTC) Received: by mail-we0-f174.google.com with SMTP id q54so1236229wes.19 for ; Thu, 29 Aug 2013 23:50:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=l19ubGoZDThO/pTAirzCqnB4B042Mafxo8ryvJhdLhA=; b=an5RA3cxbEdhGLvRnYyV1v7W4tw7HONpLKvgqGzEC3XFcMDPpbPZwDEmwDKzyz26fS uEgy4J7LqF/W6TFKB8wuqe6oQTUisa8AKIcSgWe6G1mJT/CbBc+PXttsODj1+t7P29Rj PHOcnRnW+Pxuhx0NcZuxJUn3RMvWK+i87d22RiJWD4YsguBPLdEan9P9c6ij0KUtEN7q 2RAf41GEOcqqnmyZRL2dRd0oQ8YghJ0NYRBfb+f+Hypys83NNKU0ZKK/599/RMg5eU0A VJsfu24cVi6GpX0i3cBQVoxmp/+VSdE930aLQteifjufBboKoO7NuzUi3Dt1ZBcotYBU gLkw== MIME-Version: 1.0 X-Received: by 10.180.8.42 with SMTP id o10mr1160881wia.0.1377845419919; Thu, 29 Aug 2013 23:50:19 -0700 (PDT) Sender: adrian.chadd@gmail.com Received: by 10.216.146.2 with HTTP; Thu, 29 Aug 2013 23:50:19 -0700 (PDT) In-Reply-To: References: Date: Thu, 29 Aug 2013 23:50:19 -0700 X-Google-Sender-Auth: ZEsNmLDszwben7aAwW4bDYGRDSo Message-ID: Subject: Re: 9.2-RC3 - suspend/resume causes slow system performance From: Adrian Chadd To: Mike Harding , "freebsd-acpi@freebsd.org" Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.14 Cc: FreeBSD Stable Mailing List X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 30 Aug 2013 06:50:22 -0000 On 29 August 2013 23:46, Mike Harding wrote: > I was able to track this down by building kernels against /base/stable/9 > (it took > -hours!-). > Wow, thanks! > The issue does occur with commit 244616, but does not occur with 244614. > The > only difference is a small patch to /usr/src/sys/dev/acpica/acpi_cpu.c - > this > code appears to do with c-state processing. I'll note it in the ticket, > but somebody > might want to look at this ASAP > That's awesome. It's a very small ACPI patch. Let's see if the others who are having this issue can test this out and report back! Thanks! -adrian