From owner-freebsd-stable@FreeBSD.ORG Mon Sep 14 12:43:07 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 16A491065672 for ; Mon, 14 Sep 2009 12:43:07 +0000 (UTC) (envelope-from asmrookie@gmail.com) Received: from mail-bw0-f206.google.com (mail-bw0-f206.google.com [209.85.218.206]) by mx1.freebsd.org (Postfix) with ESMTP id 940E38FC1F for ; Mon, 14 Sep 2009 12:43:06 +0000 (UTC) Received: by bwz2 with SMTP id 2so1918202bwz.43 for ; Mon, 14 Sep 2009 05:43:05 -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=JQCvic2pIM0sfl0ON1f4M2scR63RMk9jcPJh0W0oJYE=; b=bKz8AKgSWY/AJM6Vz8b9znF5ePeDe7SW4IoQFc5hU7oipHtCrb0VQBeqWrntC6K1Pc PuiTF8rwedNnSi3BhvLIwvDIIN9/ZxwMIrldtWr/dvTE+OelhBMHjlSKJli3z3EFA1Bi jZ5yKJQwzY7ikg5bJ7+8EvZk/uVWHvWFqzUrQ= 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=H6gAE7JcM33PBNv/P2BFWmCXVvgm64kQGdjCZgJQT1T/yYQenIMitc/dKhBmm8cQ/Y ujybtH7PzRGcFGcP9hsOiK6qWqr0G0EQQ9zsdDSM/oYooSseKDIqzGd6DLiKj/g/jpf/ sCgpHW1KLCRhWDtsxb55mVuR4CCGLPR5x0Xwg= MIME-Version: 1.0 Sender: asmrookie@gmail.com Received: by 10.223.92.153 with SMTP id r25mr2062340fam.99.1252932185237; Mon, 14 Sep 2009 05:43:05 -0700 (PDT) In-Reply-To: <4A67C9C7.6090301@gmail.com> References: <4A667469.1080805@gmail.com> <3bbf2fe10907220930y27b5da04sd0a71d57b6a9d191@mail.gmail.com> <4A67C9C7.6090301@gmail.com> Date: Mon, 14 Sep 2009 14:43:05 +0200 X-Google-Sender-Auth: 529a4e21ea30615f Message-ID: <3bbf2fe10909140543w56783cc8of964f464d9314db2@mail.gmail.com> From: Attilio Rao To: "C. C. Tang" Content-Type: text/plain; charset=UTF-8 Cc: freebsd-stable , barbara , "dan.naumov" 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: Mon, 14 Sep 2009 12:43:07 -0000 2009/7/23 C. C. Tang : > Attilio Rao wrote: >> >> 2009/7/22 C. C. Tang : >>>> >>>> Could that one (on i386) be related? >>>> http://www.freebsd.org/cgi/query-pr.cgi?pr=kern/134584 >>>> >>> I have no idea about it but I can tell the difference... >>> My machine panic randomly rather than on shutdown and I remembered that >>> it >>> failed to write core dump. It also failed to reboot automatically.. >> >> Is your problem on -CURRENT and amd64? >> At some point there has been a problem with PAT support (and >> tlb_shootdowns() could lead to a livelock hanging forever, leading to >> such a bug) but I expect it is fixed now. >> Can you try with a fresh new -CURRENT if any? > > My problem is on i386 version of 7.2-RELEASE-p2 on Intel Atom 330 CPU. > And my system just panic randomly with "spin lock held too long". > It didn't panic at reboot or shutdown so I think it the problem is somewhat > different from that mentioned by Barbara's PR? > > Anyway I disabled powerd and it seems become stable now. > > And I am sorry that my system has been put into service so it would be hard > for me to switch to -CURRENT... :( Can you re-enable powerd and try the attached patch?: http://www.freebsd.org/~attilio/sched_ule.diff The patch is against STABLE_7, but I think HEAD has the same bug. Please try it and report to me. Attilio -- Peace can only be achieved by understanding - A. Einstein