From owner-freebsd-stable@FreeBSD.ORG Thu Jul 23 08:54:05 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 054C4106564A; Thu, 23 Jul 2009 08:54:05 +0000 (UTC) (envelope-from dan.naumov@gmail.com) Received: from mail-yx0-f181.google.com (mail-yx0-f181.google.com [209.85.210.181]) by mx1.freebsd.org (Postfix) with ESMTP id 9D9618FC3D; Thu, 23 Jul 2009 08:54:04 +0000 (UTC) (envelope-from dan.naumov@gmail.com) Received: by yxe11 with SMTP id 11so1363138yxe.3 for ; Thu, 23 Jul 2009 01:54:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type :content-transfer-encoding; bh=4rimbFVgP4kOaoAohsLxDl3+mKs3W35iUwafWyoHIkE=; b=SgwF+mA6nHfrw92D7LgAbHeuO5r61YyxohPTqmTjqCFpBNcitJVkQ/pP6xFP4fUTag 7IDp9EE6juJSwcslD8vM5mQ8TAWBlxf+QwUJTifmzROTACFKM36jd+d5Z2E53V5/4Apn mXwILIeY6BGOLgq8Xgvoypk1gKvWVQ6CposRA= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=QPqHCwp4xudnH4OeIZvPZtqozTNVl6l5X7FLDPdoosltUpNU7w9mG/xD1yLpzP2HKS lSD2AX5DzdUnNOGB6AENlZ5aY80sM2e1s6ccwxLfQ1kISNZMOSzoseThuLLtD1OJ+XiH 7CNo0vjx3JUe4oNivKqdYLi7y4Zzo1eBZpOuA= MIME-Version: 1.0 Received: by 10.100.208.8 with SMTP id f8mr2537634ang.64.1248339243506; Thu, 23 Jul 2009 01:54:03 -0700 (PDT) In-Reply-To: <4A67C9C7.6090301@gmail.com> References: <4A667469.1080805@gmail.com> <3bbf2fe10907220930y27b5da04sd0a71d57b6a9d191@mail.gmail.com> <4A67C9C7.6090301@gmail.com> Date: Thu, 23 Jul 2009 11:54:03 +0300 Message-ID: From: Dan Naumov To: "C. C. Tang" Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: Attilio Rao , barbara , freebsd-stable 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: Thu, 23 Jul 2009 08:54:05 -0000 On Thu, Jul 23, 2009 at 5:24 AM, C. C. Tang wrote: > 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=3Dkern/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 somewh= at > 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 ha= rd > for me to switch to -CURRENT... =A0:( > > Regards, > C.C. My problem was essentially the same, completely random "spin lock held too long" panics not related to reboots or shutdowns, the only difference was that I was on amd64. I too was running powerd on the system, but it didn't cross my mind that it could've been the culprit. Hopefully I will get a chance to test FreeBSD again on the same hardware at some point, with and without powerd. Rather sad if powerd is the actual cause, considering that the whole point of using an Atom-based system is powersaving :( - Sincerely, Dan Naumov