From owner-freebsd-arm@FreeBSD.ORG Mon Oct 14 04:54:13 2013 Return-Path: Delivered-To: arm@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id DF611DD6 for ; Mon, 14 Oct 2013 04:54:13 +0000 (UTC) (envelope-from jiashiun@gmail.com) Received: from mail-wg0-x22a.google.com (mail-wg0-x22a.google.com [IPv6:2a00:1450:400c:c00::22a]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 7E8E02984 for ; Mon, 14 Oct 2013 04:54:13 +0000 (UTC) Received: by mail-wg0-f42.google.com with SMTP id n12so916235wgh.1 for ; Sun, 13 Oct 2013 21:54:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc:content-type; bh=mFDzNzThbZ5Wjnv128cb4QtzQDaW+ub0yfiZziHL6p4=; b=BynHIR1F7mmIuQfZ19C71Wo5bXLaaDHI4K624+0NUlENaxKz1OV71QjNrJ6GaeOUnc FlCysDroFrIzRZW4byRGrN/BFxchQHrFqKA6pfF3lHlFfVUXsVmR2GKYPOzswojl0mNe cuqZsYi0kQzzU6AWvq11LWYw8Zhmo5SeI7RbIndMvs3m+uKdMlbvFg5NlR5rIhcwlbS0 0qE3yIjmCdllPAWPbKMUL5W4mcpaxsAq3yR4acey5QWKZIowooRPuaNWnqgjBOXhzix4 zrHzTVRNafpdj3JiMO/q2+QrC6i8vUzKsdRBcCn6dmMH34RTRRB+yaRrKOxqQrKGPcKc DpIA== X-Received: by 10.180.188.197 with SMTP id gc5mr12864245wic.42.1381726451940; Sun, 13 Oct 2013 21:54:11 -0700 (PDT) MIME-Version: 1.0 Received: by 10.227.206.132 with HTTP; Sun, 13 Oct 2013 21:53:41 -0700 (PDT) In-Reply-To: <20131013194040.GA21904@night.db.net> References: <525AF318.3000900@gmail.com> <20131013194040.GA21904@night.db.net> From: Jia-Shiun Li Date: Mon, 14 Oct 2013 12:53:41 +0800 Message-ID: Subject: Re: Instability on Raspberry Pi To: Diane Bruce Content-Type: text/plain; charset=UTF-8 Cc: "arm@freebsd.org" X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Porting FreeBSD to the StrongARM Processor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 14 Oct 2013 04:54:13 -0000 On Mon, Oct 14, 2013 at 3:40 AM, Diane Bruce wrote: > On Sun, Oct 13, 2013 at 11:23:04PM +0400, Sevan / Venture37 wrote: >> Hi guys, >> I experience hard locks on my Pi whether the system is compiling or >> extracting files. >> Consistent test is running portsnap alfred. >> Currently running FreeBSD 11.0-CURRENT #27 r256425: Sun Oct 13 12:42:30 >> UTC 2013. >> The image was built using the script from http://kernelnomicon.org/?p=275 >> >> Any pointers much appreciated on what to try next to help debug the issue. > > It would help to see any panic logs or other symptoms. > It just locks up totally? Nothing else works? > I am seeing similar sympton on both BBB and RPi. It occasionally hang hard. Neither video (on RPi) nor serial console works, and nothing printed on console in prior. It usually happens during or after heavy loading works. e.g. build world, build big application from ports (graphics/graphviz in my case). During or after the heavy works, some simple actions could cause system to hang. "Simple actions" includes creating a new window in tmux, executing a command like 'ps ad' in another tmux window, or simply typing incomplete command in shell and press tab to trigger completion (I use tcsh). I can tell these actions caused hangs because I have clock running on tmux status line. To me it seems to be related to memory management stuff, or locking. But this is only wild guess. Jia-Shiun.