linux-kernel - RE: 2.6.22.14 oops msg with commvault galaxy ?

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Message-ID: <F1D642E5A91BC94D9504EC83AE19E6B0015201EF@ecqcmtlmail3.quebec.int.ec.gc.ca>
Date:	Tue, 11 Dec 2007 12:47:29 -0500
From:	"Fortier,Vincent [Montreal]" <Vincent.Fortier1@...GC.CA>
To:	"Dhaval Giani" <dhaval@...ux.vnet.ibm.com>,
	"Greg KH" <gregkh@...e.de>
Cc:	"Randy Dunlap" <randy.dunlap@...cle.com>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	<linux-kernel@...r.kernel.org>, <mingo@...e.hu>,
	"Srivatsa Vaddagiri" <vatsa@...ux.vnet.ibm.com>,
	<kay.sievers@...y.org>
Subject: RE: 2.6.22.14 oops msg with commvault galaxy ?

> -----Message d'origine-----
> De : linux-kernel-owner@...r.kernel.org 
> [mailto:linux-kernel-owner@...r.kernel.org] De la part de Dhaval Giani
> 
> On Tue, Dec 11, 2007 at 09:04:00AM -0800, Greg KH wrote:
> > On Tue, Dec 11, 2007 at 10:13:19PM +0530, Dhaval Giani wrote:
> > > On Tue, Dec 11, 2007 at 08:24:37PM +0530, Dhaval Giani wrote:
> > > > On Mon, Dec 10, 2007 at 09:15:01AM -0800, Randy Dunlap wrote:
> > > > > On Mon, 10 Dec 2007 09:03:17 -0500 Fortier,Vincent wrote:
> > > > > 
> > > > > Ingo, can you look at this, please?
> > > > > Vincent is getting oopses on 2.6.22.14-cfs-etch.
> > > > > 
> > > > 
> > > > Hi,
> > > > 
> > > > We are looking into this bug now. I believe that the patch at
> > > > http://marc.info/?l=linux-kernel&m=119404922603293 should help.
> > > > 
> > > > I am working with Kay to get this ported.
> > > > 
> > > 
> > > Hi Vincent,
> > > 
> > > Does the following patch help?
> > > 
> > > Kay/Greg, could you please review and add your Signed-off-by(s) as

> > > required?
> > 
> > Um, why?  What is this patch for?  Where is it to be sent, to Linus 
> > for 2.6.24-final?  Or to the -stable tree?
> > 
> 
> Hi Greg,
> 
> This is for 2.26.24-final, since Fair User scheduling is not 
> yet there in stable.
> 
> > > This is basically a port of the patch at
> > > http://marc.info/?l=linux-kernel&m=119404922603293
> > 
> > Yeah, but that patch needs some other core kobject changes, right?
> > 
> 
> Yep, there are some other changes that patch needed. We have 
> worked around them by using the existing functions in the 
> current Linus tree.
> 
> > What exactly are you trying to fix here, the fact that this code
never 
> > even worked?
> > 
> 
> The code was not using the kobject API. Its been cleaned up now (I
> hope!)

It refused to apply cleanly on a 2.6.22.14 + CFS v24, only one failure
occured.  So I resolved it manually and attached the resulting diff.

My tests with Galaxy 5.9 shows that it still does not work.  Although,
the error seems to have changed a bit (see attached dmesg)

> > And, please, we need some documentation for Documenatation/ABI/ on 
> > exactly what these sysfs files and tree is for.  Please add that now

> > for Linus's tree.
> 
> On to it, will send the patch asap.
> 
> > confused,
> 
> hope i helped (in clearing it :) )

Should this patch eventually be included in?
2.6.25                                                      ?
2.6.24                                                      ?
(-stable 2.6.23 & 2.6.22) || backport CFS v24 -> v25        ?

Thnx,

- vin

Download attachment "dmesg.2.6.22.14-CFSv24-FairUserInterfaceBUGfix" of type "application/octet-stream" (31280 bytes)

Download attachment "FairUserInterface-BugFix.patch" of type "application/octet-stream" (7903 bytes)