From owner-freebsd-stable@FreeBSD.ORG Fri Jan 10 19:15:14 2014 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id CB56695B for ; Fri, 10 Jan 2014 19:15:14 +0000 (UTC) Received: from mail-ie0-x231.google.com (mail-ie0-x231.google.com [IPv6:2607:f8b0:4001:c03::231]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 942D116F0 for ; Fri, 10 Jan 2014 19:15:14 +0000 (UTC) Received: by mail-ie0-f177.google.com with SMTP id ar20so1331494iec.8 for ; Fri, 10 Jan 2014 11:15:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=CRWXA6+hFMP0ll+JvB47RW8JoKvK/8Jvtt4TNSLGerg=; b=GgxNmurjmgoZd+KRRAsVGKziHYmR7MmWcoT/gOWHRiDIUw1B1yVc9U+Li4+rNdLVaE 2hJ/2Pd8J4Z8R7AKHRTkVGiBa+VuOtPXGbyHBazVQ0DdCQlhhguunWGebxz2ACXgyyvl 1/eKzcB6wmxJfE38tFLxPKb25ouyMhUz7JzrzSVtVJbowcmEieCrClp7JVJ+OY68s/aa OtrCfYoDxKZQuXXOLp+SfAFjgcKrylB9LkYGej90QEgMnDMRPIxaTZkbabumkstbFMMf 9IMl5Ev3UxumNNBxJiGNYrUccyRuZEj2CXzeupCgZDn0YxOFm0816/TuR9JMR/U+kTAe tShQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:date:message-id:subject:from:to :content-type; bh=CRWXA6+hFMP0ll+JvB47RW8JoKvK/8Jvtt4TNSLGerg=; b=moPMMnVKSxNl0DQa20AFJjHn6nIpStK7DQMxIdw8H+GkrXjpXZyUgoQQKH2XWbvouG O0EG0MpHiVQvh2nWRGGWFZt7sA6in8hqQoeY1ceRMQCp5vK8mMZY/xJE+/4OCAX8D9Mg NjJUA6Q6KlawciEiBgaRXdbnt8PmAgju99uEDz0TI0LZhl/lmMfDj0YONPxAhq6SkpJI uV57bfRA02YWfCvPkSc2gjOsYPj9jI5dNvN+z+DKq0wk6Vl+b/SJch7drB888l2uVcl7 xnT1DJryJMFQLyMsgQKtV/1VTXkqMKOMiYZCf0lHzL/B1cCpQOKJh6SpUOIkZ8Tzrqk3 mRoQ== X-Gm-Message-State: ALoCoQkMm5J6jpgdXM4NTN00StmKAa37Bb4EYwyipukqRIeLs/SuhZQk2TCQsMKR5qSajoCh6U1jrKX1bPkNRp8gO9whqgGhUXMdGqiUN+2ejN2VlPRt8PrG5WNOfhXrfLXgMFaq2TGvLYkCsOsFniNGI8+v0APTuT3V47Td9rILwpmpYNj+UF7XeD1fMiuz5dRywU4YwzKkWlnIMNxLt3Zm75iJ3uiDaw== MIME-Version: 1.0 X-Received: by 10.50.176.201 with SMTP id ck9mr5300948igc.46.1389381313892; Fri, 10 Jan 2014 11:15:13 -0800 (PST) Received: by 10.64.227.230 with HTTP; Fri, 10 Jan 2014 11:15:13 -0800 (PST) Date: Fri, 10 Jan 2014 11:15:13 -0800 Message-ID: Subject: Re: UFS panic on Google Compute Engine From: Venkatesh Srinivas To: freebsd-stable@freebsd.org Content-Type: text/plain; charset=UTF-8 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 10 Jan 2014 19:15:14 -0000 We are looking in to this issue as well. Could you try setting the sysctl kern.cam.da..minimum_cmd_size to 10 and see if that works any better for you? On 10 Jan 2014 Bryan Venteicher wrote: > On 9 Jan 2014 Julian Stecklina wrote: >> Also weird is that the same virtual disk pops up two times: ... > Odd, but they're different LUNs. The doubled LUNs issue is actually a bug in the FreeBSD virtio-scsi driver, masked in QEMU but not in GCE; see kern pr/185626. -- vs;