From owner-freebsd-current@FreeBSD.ORG  Mon Oct  7 20:35:35 2013
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Delivered-To: freebsd-current@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 ESMTP id 43EB7BC5
 for <freebsd-current@freebsd.org>; Mon,  7 Oct 2013 20:35:35 +0000 (UTC)
 (envelope-from cochard@gmail.com)
Received: from mail-wg0-x22f.google.com (mail-wg0-x22f.google.com
 [IPv6:2a00:1450:400c:c00::22f])
 (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits))
 (No client certificate requested)
 by mx1.freebsd.org (Postfix) with ESMTPS id D65422137
 for <freebsd-current@freebsd.org>; Mon,  7 Oct 2013 20:35:34 +0000 (UTC)
Received: by mail-wg0-f47.google.com with SMTP id f12so7634723wgh.26
 for <freebsd-current@freebsd.org>; Mon, 07 Oct 2013 13:35:33 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113;
 h=mime-version:sender:in-reply-to:references:from:date:message-id
 :subject:to:content-type;
 bh=dty5i3wPoHKh6cfAGjiUFcQ+mxTMF81bPviNxh1dLPM=;
 b=JiRoOTFg8ZeP+a8+lZfLoUOLlucH+YLfd5IrKfT9ZggooJdV6MutC58WalVlJV95+F
 mDTF8ZN7SzwZK41Mb6pV5idnAREA7YnJL2Xabm//vhGNsbVp0XcpcsatUtRdEObnzjXw
 iYTDqYiHY46q6NSrIi0n88Sjky5KvzvZTarzFp1xJjKELXRD9b6SiBttmZKiu3xDGW0/
 KzwKS0MKpNcC5ibLrgqWQuT7Dv6wRStpxQBpJdN4Eg52TqGBJSrETf9nNzTECksyV+Ft
 CyftKvaNhAR426kGpelHbsnGwlkCFAQoKmKnJ8aG/kuWCKc2Sq4FEL4deWIC3GebSMoz
 v37A==
X-Received: by 10.180.189.205 with SMTP id gk13mr20441140wic.12.1381178133285; 
 Mon, 07 Oct 2013 13:35:33 -0700 (PDT)
MIME-Version: 1.0
Sender: cochard@gmail.com
Received: by 10.194.236.131 with HTTP; Mon, 7 Oct 2013 13:35:13 -0700 (PDT)
In-Reply-To: <CA+q+Tcr+3AQGwO739u4mkfESeh=yeDU_FKfL8ukEyvbpZrdNzQ@mail.gmail.com>
References: <CA+q+Tcr+3AQGwO739u4mkfESeh=yeDU_FKfL8ukEyvbpZrdNzQ@mail.gmail.com>
From: =?ISO-8859-1?Q?Olivier_Cochard=2DLabb=E9?= <olivier@cochard.me>
Date: Mon, 7 Oct 2013 22:35:13 +0200
X-Google-Sender-Auth: 7x1jv9ZvxUFDZfYRQzdiib8NHn4
Message-ID: <CA+q+TcoLqfOMQzXzeoJiJh_CdGjRDfU3oo-nVp3iuLZsSWOetA@mail.gmail.com>
Subject: Re: unionfs related panic on 10.0-ALPHA4
To: "freebsd-current@freebsd.org" <freebsd-current@freebsd.org>
Content-Type: text/plain; charset=ISO-8859-1
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
 <freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-current>, 
 <mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
 <mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 07 Oct 2013 20:35:35 -0000

I've just have another crash related to mount_unionfs but on sparc64
arch this time  ( 10.0-ALPHA4 #2 r255947).

Still no core dump:

panic: vm_fault: fault on nofault entry, addr: 1c05f2000
cpuid = 0
KDB: stack backtrace:
panic() at panic+0x1d4
vm_fault_hold() at vm_fault_hold+0x174
vm_fault() at vm_fault+0x88
trap_pfault() at trap_pfault+0x2e4
trap() at trap+0x308
-- fast instruction access mmu miss tar=0x1c05f2000 %o7=0x17ae23b4c --
_end() at 0x1c05f21a0
vfs_donmount() at vfs_donmount+0x1958
sys_nmount() at sys_nmount+0x78
syscall() at syscall+0x320
-- syscall (378, FreeBSD ELF64, sys_nmount) %o7=0x10141c --
userland() at 0x4047f968
user trace: trap %o7=0x10141c
pc 0x4047f968, sp 0x7fdffffcff1
pc 0x100e24, sp 0x7fdffffda01
pc 0x402058f4, sp 0x7fdffffdac1
done
KDB: enter: panic
[ thread pid 73492 tid 100396 ]
Stopped at      kdb_enter+0x80: ta              %xcc, 1

db> show thread
Thread 100396 at 0xfffff80005598920:
 proc (pid 73492): 0xfffff8000591c4b0
 name: mount_unionfs
 stack: 0xed2aa000-0xed2b1fff
 flags: 0x4  pflags: 0
 state: RUNNING (CPU 0)
 priority: 152
 container lock: sched lock 0 (0xc0c4a800)
db> show all trace

Tracing command mount_unionfs pid 73492 tid 100396 td 0xfffff80005598920
panic() at panic+0x218
vm_fault_hold() at vm_fault_hold+0x174
vm_fault() at vm_fault+0x88
trap_pfault() at trap_pfault+0x2e4
trap() at trap+0x308
-- fast instruction access mmu miss tar=0x1c05f2000 %o7=0x17ae23b4c --
_end() at 0x1c05f21a0
vfs_donmount() at vfs_donmount+0x1958
sys_nmount() at sys_nmount+0x78
syscall() at syscall+0x320
-- syscall (378, FreeBSD ELF64, sys_nmount) %o7=0x10141c --
userland() at 0x4047f968
user trace: trap %o7=0x10141c
pc 0x4047f968, sp 0x7fdffffcff1
pc 0x100e24, sp 0x7fdffffda01
pc 0x402058f4, sp 0x7fdffffdac1
done
...