From owner-freebsd-virtualization@freebsd.org Mon Jun 18 17:03:58 2018 Return-Path: Delivered-To: freebsd-virtualization@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 0DAB61013135 for ; Mon, 18 Jun 2018 17:03:58 +0000 (UTC) (envelope-from zbeeble@gmail.com) Received: from mail-it0-x232.google.com (mail-it0-x232.google.com [IPv6:2607:f8b0:4001:c0b::232]) (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 9349787E08 for ; Mon, 18 Jun 2018 17:03:57 +0000 (UTC) (envelope-from zbeeble@gmail.com) Received: by mail-it0-x232.google.com with SMTP id p185-v6so13011590itp.4 for ; Mon, 18 Jun 2018 10:03:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=Hyy7zcWVSgx7SmfF8N80bePinYfXzerj+jhyviitX1U=; b=ODgVJzVhRRo5h9V0und7NxIzD5tykobMM56QNCce4hoSj3ZoClX7jCn7VyKxwTgn9H bi6vQMDEHWb9PtokZJn2f4rVFBBncJJgWTL/BAu6bjPltXLMbueVabF643sLVE4sxgL/ Lq0Zp6OXFqHoCGVeYcLRzVPC2UMWHLZ4RCwFMBsXgz3Xz4649tEMygs1hGzb8t9dm1hX xQZWLWbaFJ8GfRlUYSeJPlvnZcaJ5vZpnKRtxmOEEUgtwDXVLdr4H1kGGdoAtD9PyuTn OIdVXI9mJ8HZqqh0hq1HCutomNWSofQiDpgOoBZMxSjJqZLcm6dx3xWPu04QNB4AvH8h BxBA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=Hyy7zcWVSgx7SmfF8N80bePinYfXzerj+jhyviitX1U=; b=G9BWl00JoFFv6o9Y1ZrWoJXxCQllgs7UMIu/URktE3wsZrlXvQ6d8jws1Hr8ACYIh4 6I83qqZ1zbwvpcWny+v65B9LK0pK1cyAR5g9Qj2vAbLfL90Wg8w/PaJUyeK/n9TKGKgX Iewnxj6XLz5V24NJp8uLnc/5n8/evOhydNAWbbBSlQd2BhH6Ey4ny3T74j9s4Yg2pGqv yoLX+1l+JMPdjo6AMwKxZj9GXysJPbNX/2PePzylsQsOC3t7rgDGZpOw94AgnFzUipMq 9QCsR8yUgfQb9VtlsRn15yMBlRjupumFMtYNZxx3Qjlwdo+YXz8imOWe9j9eTEw7A8cL 1uCQ== X-Gm-Message-State: APt69E05yt+zkWIbXOHAL6nMWKVpYYsavU6hVdBAgwlxchwUghCNadfi kxqgvS3htXBDelI6TyXNooZ7p2cNi+MQLFJ+8yvK X-Google-Smtp-Source: ADUXVKLikL/vR5WKNbgIDeXBvPjUdyg/y0297IdChvhhNJzl5DAmfSuWmmlEsbOtbXHOXpDmo0cTAp21gkFZixwvCcg= X-Received: by 2002:a02:6a4f:: with SMTP id m15-v6mr10862977jaf.90.1529341436831; Mon, 18 Jun 2018 10:03:56 -0700 (PDT) MIME-Version: 1.0 Received: by 2002:ac0:8bf7:0:0:0:0:0 with HTTP; Mon, 18 Jun 2018 10:03:56 -0700 (PDT) From: Zaphod Beeblebrox Date: Mon, 18 Jun 2018 13:03:56 -0400 Message-ID: Subject: AMD bhyve fails linux unless console is stdout. To: freebsd-virtualization@freebsd.org Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.26 X-BeenThere: freebsd-virtualization@freebsd.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: "Discussion of various virtualization techniques FreeBSD supports." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 18 Jun 2018 17:03:58 -0000 I have an AMD "hammer" (9590) running a bhyve with a VM that used to be a "droplet". All is good if I run "vm -f start " it works. That is: the console is attached to stdin/stdout of the vm command. If, however, I start without the -f, I get the linux kernel "not" booting with output of: [ 54.548000] serial8250: too much work for irq4 [ 57.412000] serial8250: too much work for irq4 [ 61.040000] [sched_delayed] sched: RT throttling activated [ 61.044000] serial8250: too much work for irq4 [ 63.892000] serial8250: too much work for irq4 [ 66.760000] serial8250: too much work for irq4 [ 69.656000] serial8250: too much work for irq4 ... so suboptimal.