From owner-freebsd-stable@FreeBSD.ORG  Tue Nov 18 16:17:56 2014
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
Delivered-To: stable@FreeBSD.org
Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115])
 (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id 02FBA1BE
 for <stable@FreeBSD.org>; Tue, 18 Nov 2014 16:17:56 +0000 (UTC)
Received: from woozle.rinet.ru (woozle.rinet.ru [195.54.192.68])
 (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id 778F5C6C
 for <stable@FreeBSD.org>; Tue, 18 Nov 2014 16:17:54 +0000 (UTC)
Received: from localhost (localhost [127.0.0.1])
 by woozle.rinet.ru (8.14.5/8.14.5) with ESMTP id sAIGHPIV004003
 for <stable@FreeBSD.org>; Tue, 18 Nov 2014 19:17:25 +0300 (MSK)
 (envelope-from marck@rinet.ru)
Date: Tue, 18 Nov 2014 19:17:25 +0300 (MSK)
From: Dmitry Morozovsky <marck@rinet.ru>
To: stable@FreeBSD.org
Subject: stab;e/10 panic under disk load
Message-ID: <alpine.BSF.2.00.1411181913110.2113@woozle.rinet.ru>
User-Agent: Alpine 2.00 (BSF 1167 2008-08-23)
X-NCC-RegID: ru.rinet
X-OpenPGP-Key-ID: 6B691B03
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.4.3
 (woozle.rinet.ru [0.0.0.0]); Tue, 18 Nov 2014 19:17:25 +0300 (MSK)
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.18-1
Precedence: list
List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-stable>,
 <mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable/>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
 <mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 18 Nov 2014 16:17:56 -0000

Dear colleagues,

my backup server after updrade to frest stable/10

start panicing on heavy disk load like rsync at

FreeBSD whale.rinet.ru 10.1-STABLE FreeBSD 10.1-STABLE #195 r274646: Tue Nov 18 
12:15:24 MSK 2014     
marck@castor.rinet.ru:/usr/obj/FreeBSD/pristine/src.10/sys/GENERIC  amd64


panic: vm_fault: fault on nofault entry, addr: fffffe001805b000
cpuid = 0
KDB: stack backtrace:
#0 0xffffffff80964fa0 at kdb_backtrace+0x60
#1 0xffffffff8092a085 at panic+0x155
#2 0xffffffff80ba168e at vm_fault_hold+0x1b6e
#3 0xffffffff80b9fad7 at vm_fault+0x77
#4 0xffffffff80d2861c at trap_pfault+0x19c
#5 0xffffffff80d27dea at trap+0x47a
#6 0xffffffff80d0db92 at calltrap+0x8
#7 0xffffffff819df8ee at fzap_cursor_retrieve+0x16e
#8 0xffffffff819e4c97 at zap_cursor_retrieve+0x1f7
#9 0xffffffff81a1fed6 at zfs_freebsd_readdir+0x426
#10 0xffffffff80e456b7 at VOP_READDIR_APV+0xa7
#11 0xffffffff809d68cc at kern_getdirentries+0x21c
#12 0xffffffff809d6688 at sys_getdirentries+0x28
#13 0xffffffff80d28da1 at amd64_syscall+0x351
#14 0xffffffff80d0de7b at Xfast_syscall+0xfb
Uptime: 1m51s

Unfortunately it's ZFS only, so I have no space to white panic dump.

I'm now trying to rebuild kernel with debugger turned on, as luckily I have 
working console@SOL...

Any preliminary hints?

-- 
Sincerely,
D.Marck                                     [DM5020, MCK-RIPE, DM3-RIPN]
[ FreeBSD committer:                                 marck@FreeBSD.org ]
------------------------------------------------------------------------
*** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck@rinet.ru ***
------------------------------------------------------------------------