From owner-freebsd-geom@FreeBSD.ORG Tue Jan 11 20:18:16 2011 Return-Path: Delivered-To: freebsd-geom@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 24E621065693; Tue, 11 Jan 2011 20:18:16 +0000 (UTC) (envelope-from steveprice67@gmail.com) Received: from mail-fx0-f54.google.com (mail-fx0-f54.google.com [209.85.161.54]) by mx1.freebsd.org (Postfix) with ESMTP id 46A828FC12; Tue, 11 Jan 2011 20:18:15 +0000 (UTC) Received: by fxm16 with SMTP id 16so20344333fxm.13 for ; Tue, 11 Jan 2011 12:18:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:sender:received :in-reply-to:references:date:x-google-sender-auth:message-id:subject :from:to:cc:content-type; bh=usEUWeTggOWuiGzBkSj/ePm1um0BSapTQwrsQTBaqOI=; b=vNTSz/eOelH6Q+EVd/6dwfDx82v0BHhKNO90+cdQM9L2xicLkvda1qfcN9dOCo2fpc BftdbyRM8CFjkdpZ0TLUMTvdvXwCuJH3dUsQttROppC4vsjbezvBpxl5rXl4TldJuXIO z+7KI0B5JY1vQbwgQBlCuqHeIEILXgNqCpL0Y= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type; b=bCCazrjoVgToO9EVs/OrF5YH/zsgaCsz1r+iHLz95sytzzmv3q4EjWg+pU9LUl/xuq Re5L3AhMPTsBTgF+ErgZ9aZohfWOo3+W7NfLTEC9rg0AMmff+vxrXNeUrVga91NJter1 wBRzg1+2peGYMVrsYS3wTYWYfUxqYEb5vVdkY= MIME-Version: 1.0 Received: by 10.223.101.134 with SMTP id c6mr84973fao.12.1294777094499; Tue, 11 Jan 2011 12:18:14 -0800 (PST) Sender: steveprice67@gmail.com Received: by 10.223.74.138 with HTTP; Tue, 11 Jan 2011 12:18:14 -0800 (PST) In-Reply-To: <20110111182302.GB1812@garage.freebsd.pl> References: <4D2C546D.8010604@quip.cz> <20110111182302.GB1812@garage.freebsd.pl> Date: Tue, 11 Jan 2011 14:18:14 -0600 X-Google-Sender-Auth: ZisxRPoXU62cGnE_VxaucaPJ0Qc Message-ID: From: Steve Price To: Pawel Jakub Dawidek Content-Type: text/plain; charset=ISO-8859-1 Cc: Miroslav Lachman <000.fbsd@quip.cz>, freebsd-geom@freebsd.org Subject: Re: gmirror panic on RELENG_8 X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 11 Jan 2011 20:18:16 -0000 On Tue, Jan 11, 2011 at 12:23 PM, Pawel Jakub Dawidek wrote: > > This is very bad idea to turn live disk into a mirror, but I don't > expect this is the reason of the panic. Agreed. This is a dev machine with a fresh install - only 300M used of a 300GB drive so the likelihood of something being in the last sector of da0 is near zero. Just to be safe though I usually dd the last sector to file just to make sure. > Panic message and backtrace is minimum what you need to provide. > Really, even taking photo of your screen with panic message and > backtrace might be enough. I'm unable to get a coredump at the moment but here's what I typed in from a couple of screenshots I took. SMP: AP CPU #1 Launched! SMP: AP CPU #2 Launched! SMP: AP CPU #3 Launched! Fatal trap 12 with interrupts disabled Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0x8 fault code = supervisor read, page not present instruction pointer = 0x20:0xc0bd0c22 stack pointer = 0x28:0xc1020c7c frame pointer = 0x28:0xc1020c94 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = resume, IOPL = 0 current process = 0 (swapper) trap number = 12 panic: page fault cpuid = 0 KDB: stack backtrace: #0 0xc08e0ef7 at kdb_backtrace+0x47 #1 0xc08b1fb7 at panic+0x117 #2 0xc0be4c93 at trap_fatal+0x323 #3 0xc0be4f10 at trap_pfault+0x270 #4 0xc0be5455 at trap+0x465 #5 0xc0bcc08c at calltrap+0x6 #6 0xc0bd45dc at lapic_handle_intr+0x4c #7 0xc0bcc455 at Xapic_isr1+0x35 #8 0xc0bd2180 at ioapic_assign_cpu+0x230 #9 0xc0bd0e6a at intr_shuffle_irqs+0xba #10 0xc08690bc at mi_startup+0xac #11 0xc0474885 at begin+0x2c Uptime: 9s Cannot dump. Device not defined or unavailable. Automatic reboot in 15 seconds - press a key on the console to abort -steve