From owner-freebsd-hackers@FreeBSD.ORG Tue Jun 21 02:08:17 2011 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 42FC3106564A; Tue, 21 Jun 2011 02:08:17 +0000 (UTC) (envelope-from ansarm@gmail.com) Received: from mail-pw0-f54.google.com (mail-pw0-f54.google.com [209.85.160.54]) by mx1.freebsd.org (Postfix) with ESMTP id 0F73B8FC0C; Tue, 21 Jun 2011 02:08:16 +0000 (UTC) Received: by pwi7 with SMTP id 7so119434pwi.13 for ; Mon, 20 Jun 2011 19:08:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=wCAynYyMgrwf0qhBxMzvoqWbTXoE7xd1YBfgjEgVtFA=; b=rB7WUvQfv01ou763gQw3mf9IKJ0kBe135WshWQv2k1HNoe3+jyaaZFzp+GsrNtQmzd 7yrk5KIwAyqjNtrx/Xn/7VPfRpKF82BDl9B+fbw9kJRoD6p8e13L/oirFLkpvgC3q3d4 laUUyYBPyDiieLN/RbCuqBj1MckEJ9V7tnQZE= 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; b=VqlsPcE6qwDpwqm3kMRfS92bAn1unH8N0v+zwHbKoHYI5VqC/5oETQkr9xx593MtF0 TV98SNdWlj2gyVf0gONkkmCbJLcHK7aBIYcVN7bHD5ca5FcmVcW1xKgxXx2U+8dA7c4Y 3ACJ+FAijxEb/5RtbAePIfXpq5/m8AvmaZ0OQ= MIME-Version: 1.0 Received: by 10.68.28.133 with SMTP id b5mr2288268pbh.264.1308622096196; Mon, 20 Jun 2011 19:08:16 -0700 (PDT) Received: by 10.68.58.227 with HTTP; Mon, 20 Jun 2011 19:08:16 -0700 (PDT) In-Reply-To: <201106201643.35418.jhb@freebsd.org> References: <7B9E5AE3-C895-4D07-B923-A2F178B7B9BF@bsdimp.com> <201106201643.35418.jhb@freebsd.org> Date: Mon, 20 Jun 2011 22:08:16 -0400 Message-ID: From: Ansar Mohammed To: John Baldwin Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-hackers@freebsd.org Subject: Re: Shooting trouble on a PCI bus hang X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 21 Jun 2011 02:08:17 -0000 Let me do a bit more testing on this John. I will try with older (7.x) and newer (9-current) kernels to verify that this is not a regression or otherwise. Also, this is a WYSE SX0 thin client with a stripped down BIOS, so I dont expect that many other people will run into this issue. On Mon, Jun 20, 2011 at 4:43 PM, John Baldwin wrote: > On Monday, June 20, 2011 4:03:26 pm Ansar Mohammed wrote: > > So with a plethora of printfs in pci.c I managed to track it down to a > call > > to *pci_read_bar *against an AMD CS5536 PCI-ISA bridge. This somehow > > intermittently hangs on bootup. > > Any suggestions? > > Hmm, do you know what kind of BAR it is, or perhaps the raw value of the > BAR > that we first read that was setup by the firmware? > > -- > John Baldwin >