From owner-freebsd-stable@FreeBSD.ORG Tue Sep 23 20:08:15 2008 Return-Path: Delivered-To: stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0B3FA1065670 for ; Tue, 23 Sep 2008 20:08:15 +0000 (UTC) (envelope-from josh.carroll@gmail.com) Received: from mail-gx0-f17.google.com (mail-gx0-f17.google.com [209.85.217.17]) by mx1.freebsd.org (Postfix) with ESMTP id B6ADD8FC1F for ; Tue, 23 Sep 2008 20:08:14 +0000 (UTC) (envelope-from josh.carroll@gmail.com) Received: by gxk10 with SMTP id 10so4776803gxk.19 for ; Tue, 23 Sep 2008 13:08:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:reply-to :to:subject:cc:in-reply-to:mime-version:content-type :content-transfer-encoding:content-disposition:references; bh=lY50ol9UraMZbN6IXBnJ8Ge0m3LlVF352lUeEFVy6q8=; b=t3Aa2m9bNv2vJStVjWDzgbvDdF8AEh2YP3etIoILspTSNnrEOWdSUHUG7oWyNIWtBB 3lxE6fTu/yf3wau7KpfcATGSJD8tN/1fysP/iU+er0b8fym09lZQKA5RkoQElZUorhDQ s+m1JGJg5h6awLZ3LuGXzM4+RlKlLN/XMc9x8= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:reply-to:to:subject:cc:in-reply-to :mime-version:content-type:content-transfer-encoding :content-disposition:references; b=f99MFpdJ/4JOfooRSrCA1GJ0uxsuFYDBnBLAGPkbSfn2BoFkideq9qRZoN8vDTnJPe 9T/ODkGddlSqJuL6oDFPaodxpExTmKN4bLMrkfwoKOwSJ9iAeGD20Hp7AIqCLca6hRkT 5zi9rUac5PScKL4xzq6ZCj/6MvhAbqi2tGFrE= Received: by 10.150.156.9 with SMTP id d9mr9743925ybe.90.1222199033256; Tue, 23 Sep 2008 12:43:53 -0700 (PDT) Received: by 10.151.11.21 with HTTP; Tue, 23 Sep 2008 12:43:53 -0700 (PDT) Message-ID: <8cb6106e0809231243q3f874ccap50520dde1e0e63b2@mail.gmail.com> Date: Tue, 23 Sep 2008 15:43:53 -0400 From: "Josh Carroll" To: "Mikhail Teterin" In-Reply-To: <48D93914.3020502@aldan.algebra.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <48D92589.8000200@aldan.algebra.com> <3a142e750809231125o579445baufb5f2676e4d9a2ca@mail.gmail.com> <48D93914.3020502@aldan.algebra.com> Cc: stable@freebsd.org, "Paul B. Mahol" Subject: Re: 7.0-stable: a hung process - scheduler bug? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: josh.carroll@gmail.com List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Sep 2008 20:08:15 -0000 > However, what I'm seeing on my system today is evidence of the scheduler > having a bug, rather than merely being suboptimal. If the old scheduler is > still maintained and supposed to work (however sub-optimally) in 4-CPU > configurations, I'd expect either inquiries for more debug-information or > assurances, that the bug is known and worked on. I'm no expert, but I don't think you can necessarily conclude that it is the scheduler yet. It very well may be, but I agree that someone with more expertise hopefully will ask for more detailed debug/trace information to pin down where the problem lies. > In the July 26th sys/conf/NOTES file the SCHED_BSD4 is still on the default > option.... GENERIC for i386 and amd64 has ULE as the default in RELENG_7. Regards, Josh