From owner-freebsd-current@FreeBSD.ORG Fri May 8 02:19:42 2009 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id F4187106564A for ; Fri, 8 May 2009 02:19:41 +0000 (UTC) (envelope-from mat.macy@gmail.com) Received: from yw-out-2324.google.com (yw-out-2324.google.com [74.125.46.28]) by mx1.freebsd.org (Postfix) with ESMTP id AE25D8FC0C for ; Fri, 8 May 2009 02:19:41 +0000 (UTC) (envelope-from mat.macy@gmail.com) Received: by yw-out-2324.google.com with SMTP id 9so686426ywe.13 for ; Thu, 07 May 2009 19:19:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:sender:received:in-reply-to :references:date:x-google-sender-auth:message-id:subject:from:to:cc :content-type:content-transfer-encoding; bh=cIapMll6SKrFtZQNF2yOHn6XWH76olK52KQjycsXFRs=; b=WNnJjsB8KxHCmAAAKjPdyuIsowunkJNfFhPtKgXtocj04C0LdQMPqnZn7f5UnhklxJ cfC9XibBMFNtGMTsSwoRdynTb44DKP7CXQFpMJEMO9Yd1kNMaBO5CrS9Elj8pDkZeOey TcJmoyZIXegT+tGvoKnSj63Fin5xkU9EKUu7A= 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 :content-transfer-encoding; b=Xy1f+WZ2xuizYU5/CMhdPT0DOoZ8wtJDBhiro75Sw3d/tCABAMW1Cp+uNhFRgORcHW skfsQQJNM2ZRsOHdhrGckgZsjk/yrPw0/aKprqyDySOzw7VjDlvYUAkL4SKZRZSF1vs5 0kb9fdWyRxP4cFcAZN3t0MgjAq2ZFQ7S3+q7A= MIME-Version: 1.0 Sender: mat.macy@gmail.com Received: by 10.100.248.4 with SMTP id v4mr7231547anh.57.1241749180920; Thu, 07 May 2009 19:19:40 -0700 (PDT) In-Reply-To: <20090507210516.06331fb2@zelda.local> References: <20090507210516.06331fb2@zelda.local> Date: Thu, 7 May 2009 19:19:40 -0700 X-Google-Sender-Auth: 8fd51aed131761ec Message-ID: <3c1674c90905071919k55e1bf86yc64b54a10b142c8d@mail.gmail.com> From: Kip Macy To: Martin Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: freebsd-current@freebsd.org Subject: Re: ZFS panic space_map.c line 110 X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 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, 08 May 2009 02:19:42 -0000 This panic indicates that the caller expected there to be free space between start and (start + size), but none was found. This could be a locking bug or a space map corruption (depressing). There really isn't enough context here for me to go on. If you can't get a core, please at least provide us with a backtrace from ddb. Thanks, Kip On Thu, May 7, 2009 at 12:05 PM, Martin wrote: > > Hi, > > I have a file server running ZFS on -CURRENT. Someone has tried to > transfer a file with several gigabytes onto the system. The kernel > crashed with a panic and freezed up during spewing the panic. I've only > written down the most important messages: > > solaris assert ss==NULL > zfs/space_map.c line 110 > > process: 160 spa_zio > > I've heard that I can try to move the zpool cache away and import the > zpool with force once again. Will this help? I am asking because I > don't know if the panic is caused by a corrupt cache or corrupt > file system metadata. Maybe someone can explain it. (I had to switch the > server off very ungently and the underlying RAID is rebuilding, so I > can try it out later.) > > Is this issue with inconsistent zpools well known? I've seen some posts > from 2007 and January 2009 that reported similar problems. Apparently > some people have lost their entire zpools multiple times already, as > far as I understood it. > > One more piece of information I can give is that every hour the ZFS file > systems create snapshots. Maybe it triggered some inconsistency between > the writes to a file system and the snapshot, I cannot tell, because I > don't understand the condition. > > -- > Martin > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" > -- All that is necessary for the triumph of evil is that good men do nothing. Edmund Burke