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

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Date:	Thu, 13 Dec 2007 13:24:26 +0000
From:	Vincent Fortier <vincent.fortier1@...gc.ca>
To:	Dhaval Giani <dhaval@...ux.vnet.ibm.com>,
	Ingo Molnar <mingo@...e.hu>
Cc:	Greg KH <gregkh@...e.de>, Randy Dunlap <randy.dunlap@...cle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org,
	Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>,
	kay.sievers@...y.org, Balbir Singh <balbir@...ibm.com>,
	maneesh@...ibm.com
Subject: Re: 2.6.22.14 oops msg with commvault galaxy ?

On Thu, 2007-12-13 at 18:32 +0530, Dhaval Giani wrote:
> On Thu, Dec 13, 2007 at 01:55:09PM +0100, Ingo Molnar wrote:
> > 
> > * Dhaval Giani <dhaval@...ux.vnet.ibm.com> wrote:
> > 
> > > Could you please see if the following patch removes the oops due to 
> > > CFS sysfs files? (There might still be the other oops due to the 
> > > floppy sysfs files)
> > > 
> > > Ingo, could you please add this patch in your CFS backport to 2.6.22 
> > > and older kernels?
> > 
> > sure - i've updated the backport patches with this fix.
> > 
> 
> Thanks!

CFS v24 now does not apply correctly on a 2.6.22.15-rc1 here:
--- 31,43 ----
  #include <linux/cn_proc.h>
  #include <linux/getcpu.h>
  #include <linux/task_io_accounting_ops.h>
+ #include <linux/seccomp.h>
  #include <linux/cpu.h>

  #include <linux/compat.h>
  #include <linux/syscalls.h>
  #include <linux/kprobes.h>
+ #include <linux/user_namespace.h>

  #include <asm/uaccess.h>
  #include <asm/io.h>


due to [patch 31/36] Revert "Fix SMP poweroff hangs
which removes:
-#include <linux/cpu.h>


About to build/test this morning.

thnx.

- vin


> 
> > >  static void user_attr_init(struct subsys_attribute *sa, char *name, int mode)
> > >  {
> > > +	sa->attr.owner = NULL;
> > >  	sa->attr.name = name;
> > 
> > i'm wondering why doesnt this affect 2.6.23 and later? Does sysfs 
> > initialize the owner field to NULL automatically?
> > 
> 
> Going through git log, it seems that commit
> 7b595756ec1f49e0049a9e01a1298d53a7faaa15 deemed attribute->owner as
> unnecessary. I guess that answers the question.
> 
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