From mboxrd@z Thu Jan 1 00:00:00 1970 From: Justin Piszcz Subject: Re: Kernel 3.0: Instant kernel crash when mounting CIFS (also crashes with linux-3.1-rc2 Date: Thu, 18 Aug 2011 08:14:01 -0400 (EDT) Message-ID: References: <20110815064734.403b630f@corrin.poochiereds.net> <3300.1313637592@jrobl> Mime-Version: 1.0 Content-Type: TEXT/PLAIN; format=flowed; charset=US-ASCII Cc: Jeff Layton , Jesper Juhl , linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Alan Piszcz , Steve French , linux-cifs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: "J. R. Okajima" Return-path: In-Reply-To: Sender: linux-cifs-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: On Thu, 18 Aug 2011, Justin Piszcz wrote: > > > On Thu, 18 Aug 2011, J. R. Okajima wrote: > >> >> Justin Piszcz: >>> Does anyone know if any kernel supports CIFS w/out crashing? I'd like to >>> backup some CIFS shares, thanks. >>> >>> >>> mount -t cifs //w2/x /mnt -o user=user,pass=pass >>> >>> [ 881.388836] CIFS VFS: cifs_mount failed w/return code = -22 >> ::: >> >> Since it failed mounting, this patch will help you. Although the patch >> will fix one bug, there still may exist another problem. >> >> http://marc.info/?l=linux-cifs&m=131345112022031&w=2 > > Hi, > > Latest patch (this one) applied to linux-3.1-rc2 works, at least it mounted > this time and did not instantly crash the kernel! > > I also tried the hostname again (and it did not crash the kernel, but it > failed to mount). > > Used the IP and it mounted successfully: > //10.0.0.11/x 28T 5.0T 23T 19% /mnt > //10.0.0.11/y 19T 1.2T 18T 7% /mnt2 > > It has not crashed yet (which is good), I'll apply this patch to my > production machine and test taking backups of this data and let you know > if it crashes again, thanks! > > Justin. Hello, It is working but very slowly: Device eth6 [10.0.1.2] (1/1): ================================================================================ Incoming: Outgoing: Curr: 37.60 MByte/s Curr: 0.44 MByte/s Avg: 4.98 MByte/s Avg: 0.09 MByte/s Min: 0.00 MByte/s Min: 0.00 MByte/s Max: 40.79 MByte/s Max: 0.48 MByte/s Ttl: 1.45 GByte Ttl: 26.77 MByte Over 10GbE the other direction (Linux -> Windows (via Samba)) I get 500MiB/s, is CIFS slow? I'll look into options to tweak the speed but this is very poor speed when you have to transfer 5-10TB. However, it is not crashing anymore, so any speed is better than that :) Justin. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755838Ab1HRMOG (ORCPT ); Thu, 18 Aug 2011 08:14:06 -0400 Received: from lucidpixels.com ([72.73.18.11]:39271 "EHLO lucidpixels.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755788Ab1HRMOD (ORCPT ); Thu, 18 Aug 2011 08:14:03 -0400 Date: Thu, 18 Aug 2011 08:14:01 -0400 (EDT) From: Justin Piszcz To: "J. R. Okajima" cc: Jeff Layton , Jesper Juhl , linux-kernel@vger.kernel.org, Alan Piszcz , Steve French , linux-cifs@vger.kernel.org Subject: Re: Kernel 3.0: Instant kernel crash when mounting CIFS (also crashes with linux-3.1-rc2 In-Reply-To: Message-ID: References: <20110815064734.403b630f@corrin.poochiereds.net> <3300.1313637592@jrobl> User-Agent: Alpine 2.02 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; format=flowed; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 18 Aug 2011, Justin Piszcz wrote: > > > On Thu, 18 Aug 2011, J. R. Okajima wrote: > >> >> Justin Piszcz: >>> Does anyone know if any kernel supports CIFS w/out crashing? I'd like to >>> backup some CIFS shares, thanks. >>> >>> >>> mount -t cifs //w2/x /mnt -o user=user,pass=pass >>> >>> [ 881.388836] CIFS VFS: cifs_mount failed w/return code = -22 >> ::: >> >> Since it failed mounting, this patch will help you. Although the patch >> will fix one bug, there still may exist another problem. >> >> http://marc.info/?l=linux-cifs&m=131345112022031&w=2 > > Hi, > > Latest patch (this one) applied to linux-3.1-rc2 works, at least it mounted > this time and did not instantly crash the kernel! > > I also tried the hostname again (and it did not crash the kernel, but it > failed to mount). > > Used the IP and it mounted successfully: > //10.0.0.11/x 28T 5.0T 23T 19% /mnt > //10.0.0.11/y 19T 1.2T 18T 7% /mnt2 > > It has not crashed yet (which is good), I'll apply this patch to my > production machine and test taking backups of this data and let you know > if it crashes again, thanks! > > Justin. Hello, It is working but very slowly: Device eth6 [10.0.1.2] (1/1): ================================================================================ Incoming: Outgoing: Curr: 37.60 MByte/s Curr: 0.44 MByte/s Avg: 4.98 MByte/s Avg: 0.09 MByte/s Min: 0.00 MByte/s Min: 0.00 MByte/s Max: 40.79 MByte/s Max: 0.48 MByte/s Ttl: 1.45 GByte Ttl: 26.77 MByte Over 10GbE the other direction (Linux -> Windows (via Samba)) I get 500MiB/s, is CIFS slow? I'll look into options to tweak the speed but this is very poor speed when you have to transfer 5-10TB. However, it is not crashing anymore, so any speed is better than that :) Justin.