Re: 2.6.22.14 oops msg with commvault galaxy ?

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On Fri, Dec 14, 2007 at 10:37:39PM +0530, Dhaval Giani wrote:
> On Fri, Dec 14, 2007 at 08:26:42AM -0800, Greg KH wrote:
> > On Thu, Dec 13, 2007 at 09:21:26PM +0100, Ingo Molnar wrote:
> > > 
> > > * Kay Sievers <[email protected]> wrote:
> > > 
> > > > > > > This one also fails to apply properly at the exact same place 
> > > > > > > has Ingo's previously posted patch.  Would need to backport his 
> > > > > > > one.
> > > > > > 
> > > > > > It depends on a completely reworked sysfs logic, I don't think it 
> > > > > > makes any sense to backport that.
> > > > > 
> > > > > well, if it fixes a live bug in a still supported stable kernel 
> > > > > release...
> > > > > 
> > > > > Vincent, could you try to just get rid of all actual uses of 
> > > > > se->attr.owner, within fs/sysfs/*.c? Something like the patch below. 
> > > > > (totally untested - might be fatally broken as well)
> > > > 
> > > > How can you think that this is not needed? You can not remove it with 
> > > > sysfs you are patching. Hope this explains it: 
> > > > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0ab66088c855eca68513bdd7442a426c4b374ced
> > > 
> > > yeah - as i said it might be fatally broken (in fact it is). Do we 
> > > understand why Vincent got the crashes with vanilla 2.6.22.14 ?
> > 
> > No, and I can't seem to duplicate them here at all.
> > 
> > Does anyone have a test case for this that I can work on trying to
> > duplicate?
> > 
> 
> If you apply CFS without my fix, and try to constantly check cpu_shares
> for a user who is logging and logging out, you should hit it. (That's
> what I was doing).

Hm, how about a "vanilla 2.6.22.14 kernel _without_ any patches".
That's what I am most worried about :)

thanks,

greg k-h
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