From owner-freebsd-stable@FreeBSD.ORG Sat Sep 19 19:24:25 2009 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id AE397106568D for ; Sat, 19 Sep 2009 19:24:25 +0000 (UTC) (envelope-from asmrookie@gmail.com) Received: from mail-fx0-f222.google.com (mail-fx0-f222.google.com [209.85.220.222]) by mx1.freebsd.org (Postfix) with ESMTP id 3D39E8FC13 for ; Sat, 19 Sep 2009 19:24:24 +0000 (UTC) Received: by fxm22 with SMTP id 22so610203fxm.36 for ; Sat, 19 Sep 2009 12:24:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:received:in-reply-to :references:date:x-google-sender-auth:message-id:subject:from:to:cc :content-type; bh=bmOJ6GpGWbdaebpk2VwDQnt8mr79RWHOP4hjxwY9J6M=; b=iNiMUskHTek/GQ0ESEmn24wBoengExtaJ2iOVJK+Io20qL6xIdrbGrGTjB6ySlTj72 7yj3jKDkaLy6/WNq5ISgvQWKRvrga43ek4oUlGEnrfLqqWgrRvr2oPlv0xGguT4APXBo AcGHN3fbtGZYRtVfIipvE6wfs4vY25LlJkELo= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type; b=pjGGQ+UfsVPE9A3RJrxF96GOxHv6Z+7eKrwIB72j0JYg1yTAghPmKLHS7QiWSQTOeb Incta3NhMuo/tF7E8fs1RRidqGI7bIkC+64gNYP7njRjcXARJQuG/ovArBC54Jj3DUX9 FkmIsvSFdN/bFQ0+i1JrIwiD0pEPZcM6C+rL4= MIME-Version: 1.0 Sender: asmrookie@gmail.com Received: by 10.223.1.6 with SMTP id 6mr660432fad.103.1253388264229; Sat, 19 Sep 2009 12:24:24 -0700 (PDT) In-Reply-To: References: <3bbf2fe10909121432x7bd4f7es497e9431c4e520d6@mail.gmail.com> <4AB1A838.2040406@gmail.com> <3bbf2fe10909170216u29d994aj55c21efdfbc26ba5@mail.gmail.com> <4AB21005.6040104@gmail.com> <4AB36E1F.6080401@gmail.com> Date: Sat, 19 Sep 2009 21:24:24 +0200 X-Google-Sender-Auth: 1f306f7e70318c43 Message-ID: <3bbf2fe10909191224m6061d325h8bc1a389e195aa30@mail.gmail.com> From: Attilio Rao To: Dan Naumov Content-Type: text/plain; charset=UTF-8 Cc: FreeBSD-STABLE Mailing List , "C. C. Tang" Subject: Re: 7.2-release/amd64: panic, spin lock held too long X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 19 Sep 2009 19:24:25 -0000 2009/9/19 Dan Naumov : > On Fri, Sep 18, 2009 at 2:25 PM, C. C. Tang wrote: >>> Attilio Rao wrote: >>>> >>>> 2009/9/17 C. C. Tang : >>>>>>> >>>>>>> Dan, is that machine equipped with Hyperthreading? >>>>>>> >>>>>>> Attilio >>>>>> >>>>>> Yes. It's an Intel Atom 330, which is a dualcore CPU with HT (4 cores >>>>>> visible in "top" as a result) >>>>> >>>>> Yes, mine is also Atom 330. >>>>> >>>>> I cannot test the patch because my machine is also in production now. >>>>> But I >>>>> have tested it with hyperthreading. >>>>> powerd with HyperThreading -> spin lock hold too long >>>>> powerd without HyperThreading -> no problem >>>>> no powerd with/without HyperThreading -> no problem >>>> >>>> But these are with the last patch I posted in? >>>> (specifically, for 7.2: >>>> http://www.freebsd.org/~attilio/sched_ule.diff >>>> ) >>>> >>>> So with the patch in, powerd and hyperthreading on you still get a >>>> deadlock? >>>> >>>> Attilio >>>> >>>> >> I have patched the sched_ule.c and did a make buildkernel & make >> installkernel (is buildworld and installworld necessary?), rebooted and the >> machine is running now. >> I will post here again if there is any update. > > Considering we are at RC1 right now, is there any chance this patch > makes it into 8.0 release if the patch fixes the issue and doesn't > cause any regressions? Unfortunately I can't test it myself right now, > so I have to rely on other people experiencing the same issue to see > if the patch fixes it. I alredy committed it to STABLE_8 and then it will make it for sure. Attilio -- Peace can only be achieved by understanding - A. Einstein