From owner-freebsd-questions@FreeBSD.ORG Wed Aug 6 22:45:27 2014 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 36964BCA for ; Wed, 6 Aug 2014 22:45:27 +0000 (UTC) Received: from mail-qg0-f49.google.com (mail-qg0-f49.google.com [209.85.192.49]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id E958C2577 for ; Wed, 6 Aug 2014 22:45:26 +0000 (UTC) Received: by mail-qg0-f49.google.com with SMTP id j107so3451897qga.36 for ; Wed, 06 Aug 2014 15:45:25 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:subject:mime-version:content-type:from :in-reply-to:date:cc:content-transfer-encoding:message-id:references :to; bh=KULdwE3c+BtQvNHiFWRoGgoaybugNBJWgr4/Zsp1mJ4=; b=IEsjnh7NJkA2mfWcqS4+w6ufQqlhp1X72cJk350+yBPbM29OJh2sSM6FqDTESejH36 3FvBCJtNRQJgTgsjwui7KG/8p3X5T0HPfhkk2jIWMmaXvP/04ikEsDStdWweHV6Me+vD 1Ytk1VAUtshCd8pgbHbb5HSQ0j2SoAf8gnOOfI2DQdt4P4HCerAPX2/axVWLMK2vVkYf BoPkRdwpe5ZAB8HjlSX0uYov4a2Tn0nl0jL4tafWE4y1oaObHuW026nknVDf7YEFpICH mo6DhYtTl8rIWmpNoh+t7RV1Adi1t073k7G4SjrD+dCM/R3sz25eJf2Yy1TDEiMPz//U IKbg== X-Gm-Message-State: ALoCoQmt1VS+r8dl4sBwNmyCCXw2hkd+PAZhRDTjJXsIWWb9zK8XcyQeoxZTtdBcUAexEHSbMJxa X-Received: by 10.224.68.65 with SMTP id u1mr21786418qai.9.1407365125341; Wed, 06 Aug 2014 15:45:25 -0700 (PDT) Received: from [192.168.1.127] (c-71-234-255-65.hsd1.vt.comcast.net. [71.234.255.65]) by mx.google.com with ESMTPSA id g3sm3863423qaf.35.2014.08.06.15.45.24 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Wed, 06 Aug 2014 15:45:24 -0700 (PDT) Subject: Re: upgrade to 10 for zfs ? Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.6\)) Content-Type: text/plain; charset=iso-8859-1 From: Paul Kraus In-Reply-To: <20140806135423.GC98168@pcjas.obspm.fr> Date: Wed, 6 Aug 2014 18:45:23 -0400 Content-Transfer-Encoding: quoted-printable Message-Id: References: <20140806135423.GC98168@pcjas.obspm.fr> To: FreeBSD Questions !!!! X-Mailer: Apple Mail (2.1878.6) Cc: Albert Shih X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Aug 2014 22:45:27 -0000 On Aug 6, 2014, at 9:54, Albert Shih wrote: > Since we using zfs send/received from a another server I got daily a = zfs > core dump. I failed to find which process make this core-dump but it's > definitvly zfs :=20 >=20 > pid 23943 (zfs), uid 0: exited on signal 6 (core dumped) > pid 70462 (zfs), uid 0: exited on signal 6 (core dumped) > pid 71042 (zfs), uid 0: exited on signal 6 (core dumped) >=20 > I check every zfs file system and don't find any corup data.=20 >=20 > One of the zfs sender is running FreeBSD 10 the other linux/Debian.=20 Start by halting the zfs send / zfs recv from one of the two senders. = See if you still get the core dump. Since zfs send is based on a = snapshot, just make sure you do not remove the snapshot. Then restart = the first and a stop the second. In other words, determine for sure which of the two zfs send hosts is = sending the stream that is crashing zfs. If the zfs send from the = FreeBSD 10 box is causing the crash, then updating to 10 is likely to = fix the problem. If the cause is the Linux box, then all bets are off as = to whether updating will help. -- Paul Kraus paul@kraus-haus.org