From owner-freebsd-fs@FreeBSD.ORG Thu Dec 5 19:45:19 2013 Return-Path: Delivered-To: freebsd-fs@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 6EA01EF for ; Thu, 5 Dec 2013 19:45:19 +0000 (UTC) Received: from mail1.multiplay.co.uk (mail1.multiplay.co.uk [85.236.96.23]) (using TLSv1 with cipher RC4-MD5 (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 0B5AE169B for ; Thu, 5 Dec 2013 19:45:18 +0000 (UTC) Received: from r2d2 ([82.69.179.241]) by mail1.multiplay.co.uk (mail1.multiplay.co.uk [85.236.96.23]) (MDaemon PRO v10.0.4) with ESMTP id md50006953477.msg for ; Thu, 05 Dec 2013 19:45:16 +0000 X-Spam-Processed: mail1.multiplay.co.uk, Thu, 05 Dec 2013 19:45:16 +0000 (not processed: message from valid local sender) X-MDDKIM-Result: neutral (mail1.multiplay.co.uk) X-MDRemoteIP: 82.69.179.241 X-Return-Path: prvs=105103e53c=killing@multiplay.co.uk X-Envelope-From: killing@multiplay.co.uk X-MDaemon-Deliver-To: freebsd-fs@freebsd.org Message-ID: <1EAAEDBE577F4057ABA61CFF6658580C@multiplay.co.uk> From: "Steven Hartland" To: References: <2D9058D8E6F9483CA1A6C78A2DA6E71B@multiplay.co.uk> <26807186f152d97fe54c4f0e6f888275@cflinux.hu> Subject: Re: zfs deadlock Date: Thu, 5 Dec 2013 19:45:10 -0000 MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="utf-8"; reply-type=response Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5931 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6157 Cc: freebsd-fs@freebsd.org X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Dec 2013 19:45:19 -0000 Change into the directory of the snapshot then try to send the same snapshot and it will deadlock. Regards Steve ----- Original Message ----- From: To: "Steven Hartland" Cc: Sent: Thursday, December 05, 2013 7:26 PM Subject: Re: zfs deadlock > Dear Steven, > > Thanks for your reply. Do you know how to reproduce the bug? Because simply sending a snapshot which is mounted does not > automatically trigger the deadlock. Some special cases needed, or what? > How to prove that the patch fixes this? > > Regards, > 2013-12-05 19:39 időpontban Steven Hartland ezt írta: >> Known issue you want: >> http://svnweb.freebsd.org/changeset/base/258595 >> >> Regards >> Steve >> >> ----- Original Message ----- From: "Richard Kojedzinszky" >> To: >> Sent: Thursday, December 05, 2013 2:56 PM >> Subject: zfs deadlock >> >> >>> Dear fs devs, >>> >>> We have a freenas server, which is basicaly a freebsd. I was trying to look at snapshots using ls .zfs/snapshot/. >>> >>> When I issued it, the system entered a deadlock. An NFSD was running, a zfs send was running when I issued the command. >>> >>> I attached to command outputs while the system was in a deadlock state. I tried to issue >>> # reboot -q >>> But that did not restart the system. After a while (5-10 minutes) the system rebooted, I dont know if the deadman caused that. >>> >>> Now the system is up and running. >>> >>> It is basically a freebsd 9.2 kernel. >>> >>> Do someone has a clue? >>> >>> Kojedzinszky Richard >> >> >> -------------------------------------------------------------------------------- >> >> >>> _______________________________________________ >>> freebsd-fs@freebsd.org mailing list >>> http://lists.freebsd.org/mailman/listinfo/freebsd-fs >>> To unsubscribe, send any mail to "freebsd-fs-unsubscribe@freebsd.org" >> >> ================================================ >> This e.mail is private and confidential between Multiplay (UK) Ltd. >> and the person or entity to whom it is addressed. In the event of >> misdirection, the recipient is prohibited from using, copying, >> printing or otherwise disseminating it or any information contained in >> it. >> >> In the event of misdirection, illegible or incomplete transmission >> please telephone +44 845 868 1337 >> or return the E.mail to postmaster@multiplay.co.uk. > ================================================ This e.mail is private and confidential between Multiplay (UK) Ltd. and the person or entity to whom it is addressed. In the event of misdirection, the recipient is prohibited from using, copying, printing or otherwise disseminating it or any information contained in it. In the event of misdirection, illegible or incomplete transmission please telephone +44 845 868 1337 or return the E.mail to postmaster@multiplay.co.uk.