From owner-freebsd-arch@freebsd.org Wed Oct 19 21:47:27 2016 Return-Path: Delivered-To: freebsd-arch@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 0936CC19A0E for ; Wed, 19 Oct 2016 21:47:27 +0000 (UTC) (envelope-from yaneurabeya@gmail.com) Received: from mail-qt0-x22f.google.com (mail-qt0-x22f.google.com [IPv6:2607:f8b0:400d:c0d::22f]) (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 B9736BCE; Wed, 19 Oct 2016 21:47:26 +0000 (UTC) (envelope-from yaneurabeya@gmail.com) Received: by mail-qt0-x22f.google.com with SMTP id m5so36056762qtb.3; Wed, 19 Oct 2016 14:47:26 -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=nu3EwRFxbnn5RgIH7QBMMq3eHfO+M0LDSHiCpBT9Lds=; b=oOXVbw4UqprN8m4yzpLo5s8ZHaTuZD1UQBFZOMIUN1DynR0T+MxxfbpKJPwNbIX7ji iESqXYvGhAfWPsIqstX1EI8GSdsim+2JTQC/IWJfYHrZhTPEM2y2YhiBhXxUXmXelQOw 6mI6AVdgkhWzm8DaciwQ/SdgunYFc9h2g4OEtgxwhq7hisnZn4PDwEWsP3AueBMex6Vd Ad7EJOmuWnGesXqOXhBmXE329IzU16XN11EntpFdP/quRPxM9nYKNn4ttEFZ8YjUj5GO GpOqlR3tQRQA+EJD2WceamZEoIFkv0ITqKLxsH6cEyuFrhQ5r0Mgk5h8eBoukOJmK8WE 9mMw== 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=nu3EwRFxbnn5RgIH7QBMMq3eHfO+M0LDSHiCpBT9Lds=; b=LdVPqZt34UHi6NjCvdHefFd5xuxxTQR0du/It/3dhv0hlmZIRujRiU80qF0byt7ZjI CpFBYPzPtucMS/OZ9jdcNQcucqqDeL5Oht37FndReZtLKhDz8jBtverrhyhSjXTxU9PG 8iLUUrOSQaSB1OwuZmkZPzD/ObxF+3M+czLFRjcTJkBbN7zRUKrsV5m00AX8NfN2ciAZ LiwZxW7dxLc7qtPGuaQewr+/GFbeA6sapR6ZfqnHf7ZjzPqi/9sU0XGtDyTpG4/DeYkL HxPy+CsF5HYdhRV+cpTxQFbTIVxnomxCreaWGaIGaDaaf41ueFi07z7mMT4QWXSM7iqy 0nYg== X-Gm-Message-State: AA6/9Rlk4siwqBqU9hvxvgikZ6TVgPxY9Mr3quvNfTPIpw08TU/QdTb6OvFM+WwOCtL9EUx5Nlj9qIMRVCoiTQ== X-Received: by 10.200.46.43 with SMTP id r40mr8720790qta.145.1476913645757; Wed, 19 Oct 2016 14:47:25 -0700 (PDT) MIME-Version: 1.0 Received: by 10.140.29.33 with HTTP; Wed, 19 Oct 2016 14:47:25 -0700 (PDT) In-Reply-To: <7a74df08-b5d9-5629-b71e-b577d8876e5d@freebsd.org> References: <7a74df08-b5d9-5629-b71e-b577d8876e5d@freebsd.org> From: Ngie Cooper Date: Wed, 19 Oct 2016 14:47:25 -0700 Message-ID: Subject: Re: watchdog end-user interface To: Alfred Perlstein Cc: Andriy Gapon , "freebsd-arch@FreeBSD.org Arch" Content-Type: text/plain; charset=UTF-8 X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Oct 2016 21:47:27 -0000 On Wed, Oct 19, 2016 at 2:32 PM, Alfred Perlstein wrote: ... > Please look at the Linux interface for watchdogs, it is pretty good and > could/should be ported to us. We (Isilon) also have a software watchdog implementation (in lieu of IPMI+watchdogd) to make sure "userspace processes are making progress". It would be nice if there was a generalized software watchdog subsystem available in FreeBSD -- I think your suggestion to follow Linux's example may be a good investigative step to avoid reinventing the wheel too much. Thanks! -Ngie