From owner-freebsd-arm@freebsd.org Sun Mar 27 15:48:58 2016 Return-Path: Delivered-To: freebsd-arm@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 177C1ADF952 for ; Sun, 27 Mar 2016 15:48:58 +0000 (UTC) (envelope-from ian@freebsd.org) Received: from mailman.ysv.freebsd.org (unknown [127.0.1.3]) by mx1.freebsd.org (Postfix) with ESMTP id 03F121324 for ; Sun, 27 Mar 2016 15:48:58 +0000 (UTC) (envelope-from ian@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id F3BB4ADF951; Sun, 27 Mar 2016 15:48:57 +0000 (UTC) Delivered-To: arm@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id F358EADF950 for ; Sun, 27 Mar 2016 15:48:57 +0000 (UTC) (envelope-from ian@freebsd.org) Received: from outbound1b.ore.mailhop.org (outbound1b.ore.mailhop.org [54.200.247.200]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id BC8AE1323 for ; Sun, 27 Mar 2016 15:48:57 +0000 (UTC) (envelope-from ian@freebsd.org) X-MHO-User: 7020d5f2-f433-11e5-b278-7d22021d92d7 X-Report-Abuse-To: https://support.duocircle.com/support/solutions/articles/5000540958-duocircle-standard-smtp-abuse-information X-Originating-IP: 73.34.117.227 X-Mail-Handler: DuoCircle Outbound SMTP Received: from ilsoft.org (unknown [73.34.117.227]) by outbound1.ore.mailhop.org (Halon Mail Gateway) with ESMTPSA; Sun, 27 Mar 2016 15:49:06 +0000 (UTC) Received: from rev (rev [172.22.42.240]) by ilsoft.org (8.15.2/8.14.9) with ESMTP id u2RFmnSm024638; Sun, 27 Mar 2016 09:48:49 -0600 (MDT) (envelope-from ian@freebsd.org) Message-ID: <1459093729.1091.114.camel@freebsd.org> Subject: Re: ue0 stops on rpib when net booting/root via nfs From: Ian Lepore To: Daniel Braniss , arm@freebsd.org Date: Sun, 27 Mar 2016 09:48:49 -0600 In-Reply-To: References: Content-Type: text/plain; charset="windows-1251" X-Mailer: Evolution 3.16.5 FreeBSD GNOME Team Port Mime-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 27 Mar 2016 15:48:58 -0000 On Sun, 2016-03-27 at 08:00 +0300, Daniel Braniss wrote: > Something is killing the ue0 after net booting the RPI-B, > the driver just hangs sometime after going multiuser, and sometime > later > it will complain: server … not responding - since the root is nfs > mounted. > I can only enter the debugger, anything I can look for? > > > danny Is this something has been working for you for a long time and recently started to fail? I've always had intermittant trouble with armv6 and nfsroot. Sometimes the arm boards just hang even when they've been sitting idle at the shell prompt for hours, and if you ^T it shows the state as [rpccon] and it's stuck that way forever, only a reboot fixes it. It doesn't seem to happen on armv4 that I've ever noticed, just armv6 (but all armv6 for me, not just rpi, and it's intermittant and seems to happen more when the system is idle). Since nobody else has ever complained about it, I've always assumed it was some glitch in my config here, and I just never get around to figuring out why it happens. I did look at the traffic once using tcpdump on another machine, and rpc packets were going out and no replies were coming back. I don't know enough about the protocols to figure out anything from the packets I saw. -- Ian