From owner-freebsd-current@freebsd.org Fri Oct 13 06:29:35 2017 Return-Path: Delivered-To: freebsd-current@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 C4A9BE3E3D0 for ; Fri, 13 Oct 2017 06:29:35 +0000 (UTC) (envelope-from grarpamp@gmail.com) Received: from mail-ua0-x22c.google.com (mail-ua0-x22c.google.com [IPv6:2607:f8b0:400c:c08::22c]) (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 7010A75AE8 for ; Fri, 13 Oct 2017 06:29:35 +0000 (UTC) (envelope-from grarpamp@gmail.com) Received: by mail-ua0-x22c.google.com with SMTP id f46so4633948uae.1 for ; Thu, 12 Oct 2017 23:29:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=he1zC/Tikn3pPPFqG9E6A2BvxGA5Jl1VDSi4/dCkWvo=; b=nLYIEmC6AzdjFz4rc4mYAX7iixqkvNuXLQFa2wurdS1MPVJYTSq980Z8Ark3O2ANm0 fc8agtikrM2J5Vw9qW0QkOAOagZC43MFlB45bV7kbJ7wjvbyiZgdfwhdv16Y6nvMDxv0 pooq58L6YpPL0pOJNX9qiUy1v8X2Ad/EcTAy4pICYxPFaTEv3795rryoimxXcHlE115P a0pRK6kWaFTp/IK33GcwqoHPcitfLDO5fxPjvUJJcR0mhAGWW8d38HLaW5aeQ3x/tRZd pvZ1zRdWkrC0/xoO9KHaNulN2m0VXAVQGUncLgXfMsOuoO03mbGVqoOprg0BsSmatTDh Br6Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to; bh=he1zC/Tikn3pPPFqG9E6A2BvxGA5Jl1VDSi4/dCkWvo=; b=C0z9xAOLpFgBWRTQVX4ByOidfFPJumVoicpxpl4ZhgEVVerjnLsiYIl5bsa1FLzIOl nKKJZdpAU2fUE3LQ/eZIgGsHBnBws782ukHQQo0cmnSffpGAD7GOXNxjzA+pzU0l1Rpz djvUIJV083cGyEKZxWegz8z8JFODIhSN3fH1/4luGQME4Tsvn+IbvwjhO+6rhCqSFoxu J3ItkUy+4Nd+3cE2Qi6N643h0UjkL/D9WvqEi4pE5KC8RdzGD/rTsHiAkyZUES851lMu /uGdFe8Awx+H7ti+CO0h9pNZ8GuPFwshwBL0WkDRoMfUXdRHFosZOuEEuJWQk89tevlF fWOQ== X-Gm-Message-State: AMCzsaVKdW9TSSKncQqxbtJr/izkaqFKvX1sOFEp9pJ0bwpcgoLadukw sn8hOfkaPhpLBSc/jLtpDoNjsEdKfqvoELHSTly20Q== X-Google-Smtp-Source: AOwi7QCp0Yc7b1moVctLI3fhgz6bROK4AbqczIZQeHXrKNnx57HjslYgqUsfAFkvv2GFcsbczkbdhnDH/xv1pqfce/Y= X-Received: by 10.159.38.196 with SMTP id 62mr346262uay.64.1507876174276; Thu, 12 Oct 2017 23:29:34 -0700 (PDT) MIME-Version: 1.0 Received: by 10.159.50.129 with HTTP; Thu, 12 Oct 2017 23:28:53 -0700 (PDT) In-Reply-To: <2176358.5m1KsgFnXX@ralph.baldwin.cx> References: <2176358.5m1KsgFnXX@ralph.baldwin.cx> From: grarpamp Date: Fri, 13 Oct 2017 02:28:53 -0400 Message-ID: Subject: Re: LOR panic on mount -uw To: freebsd-current@freebsd.org Content-Type: text/plain; charset="UTF-8" X-Mailman-Approved-At: Fri, 13 Oct 2017 10:56:57 +0000 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 13 Oct 2017 06:29:35 -0000 On Thu, Oct 12, 2017 at 11:15 AM, John Baldwin wrote: > In this case the panic is separate from the LOR, and > for a panic we really > need the panic message in addition to the stack trace. With release kernels stack trace appears with this message, then it sits in ddb, forget how to print panic? panic: access but not attached With snapshots, both panic and stacktrace print but it doesn't ddb and goes straight to reboot. I forget how to make those enter ddb or 15sec countdown? In interim.. fatal trap 12 page fault while in kernel mode supervosor read data page not present process = mount I did file a ticket with script so anyone with a blank usb stick can recreate locally. https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=222948