From owner-freebsd-net@freebsd.org Sat Sep 10 00:33:59 2016 Return-Path: Delivered-To: freebsd-net@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 53CE9BD4222 for ; Sat, 10 Sep 2016 00:33:59 +0000 (UTC) (envelope-from woodsb02@gmail.com) Received: from mail-oi0-x234.google.com (mail-oi0-x234.google.com [IPv6:2607:f8b0:4003:c06::234]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 19B266D1 for ; Sat, 10 Sep 2016 00:33:59 +0000 (UTC) (envelope-from woodsb02@gmail.com) Received: by mail-oi0-x234.google.com with SMTP id y2so176419197oie.0 for ; Fri, 09 Sep 2016 17:33:59 -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; bh=ke3pFbR/MVJQgDSekBkkmjQCZ9egVin4/RawKhsy4KA=; b=uP0Hky09wMEgIt53ssQUws/cwydEgtBY2pVip+e7Ij90gqo0zGEXXkKP7G/vhIDe4D jHTZvTFnAzmb0LrfXgZSjqZj8qpKcg1rEeWGpzDlap+5w3WzwHk5hgEpr9HnQyLQfQqW WSsNSC7TtTYDGHP/yCDhjTswzp87FBHhrfyw+G7dOF49LAH6KUczAKDEjSVsn+ROrBWx hM/XeXQxWERI+CfuohJc+yJ0qhvbd73KZPBzOd0Kjo4iZjta/tbgFth1UYcj/6F8rsXU HUakbLFU/gmgb559S1dtcgcqnolohJiLsLGZLbAm02VzwKvod+EtukqHv6W2XtdsPsrH 0wyw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=ke3pFbR/MVJQgDSekBkkmjQCZ9egVin4/RawKhsy4KA=; b=GWmLF4Pk7RVIamebizz806rPlW9lZH1ALEuPsG3z7fVrVXuR3pPjmmgc4A9JoUgOYZ 0nf77IqXzUxoaNSnjt+qQOLQtsZqBv7cjRAG9OHBztwOBBIj0W8qunoSxK+X6Bor6wUF q2xFjlu6Jllh7nzAaX/GbGlTybn2awJtLrd4Dz41BV1mqyOe8DaE1kLdzi6lAeld0+ye 7MJ0YgqUAtqX44xU5ORocYODIKeOv3o/A43yaWyS1xVVE7UPTOZ+yuLf/C+1spFLLGWF Y/WMmHouxLoMLzHzkvuRFNpbdYVOOKDYGBgYWUF8i1FZgNDM/Grv5Ef11daMt7B2F6xl ASww== X-Gm-Message-State: AE9vXwM57j91Pu7BEBYKRdGMwm6SE0DO8ONTUtS8ELjd8zNta48winLKw5FF6tD2XwmQQe0v6fWcCTycqLIsZA== X-Received: by 10.157.60.246 with SMTP id t51mr8974673otf.129.1473467638237; Fri, 09 Sep 2016 17:33:58 -0700 (PDT) MIME-Version: 1.0 Received: by 10.79.26.3 with HTTP; Fri, 9 Sep 2016 17:33:57 -0700 (PDT) In-Reply-To: <6b3e68d6-9add-bb25-9bbe-58d1721ab9d1@rawbw.com> References: <6b3e68d6-9add-bb25-9bbe-58d1721ab9d1@rawbw.com> From: Ben Woods Date: Sat, 10 Sep 2016 08:33:57 +0800 Message-ID: Subject: Re: Search for SANE scanners freezes the system To: Yuri Cc: "freebsd-net@freebsd.org" Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 10 Sep 2016 00:33:59 -0000 On Saturday, 10 September 2016, Yuri wrote: > I observe this weird fenomenon: scanimage (from graphics/sane-backends) > freezes the system when it doesn't find a scanner on the LAN, and works > fine when the scanner is found. > > The only thing that scanimage does is sending UDP broadcasts, this makes > me think this is network related. The problem occurs reliably. Nothing is > printed to the system log. > > > Anybody happens to know what might be the problem? > > > 10.3 amd64 > > > Yuri > Hi Yuri, Can you please define more what you mean by "freezes the system"? Does it panic the kernel (which either reboots itself or drops you to a debugging console)? Does the command line just not output anything and not return to the prompt? In this case, maybe a Ctrl+c will exit the scanimage program and return you to the prompt? Or does it freeze your scanner (I.e. The impact is on your scanner, leaving your FreeBSD machine running fine)? Regards, Ben -- -- From: Benjamin Woods woodsb02@gmail.com