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Date:	Sun, 26 Feb 2012 14:18:02 +0200
From:	Nanakos Chrysostomos <>
Subject:  Re: Ext4 Kernel Crash

Hi Ted,
I tried a newer kernel and for the moment there are no problems.
I am testing our systems this weekend and the new week. I will
let you know the results.

Kind regards,

On Mon, Jan 30, 2012 at 12:26:59PM -0500, Ted Ts'o wrote:
> On Sun, Jan 29, 2012 at 07:50:57PM +0200, Nanakos Chrysostomos wrote:
> > Dear Linux Kernel Developers,
> > I am writing to report a kernel or ext4 bug.
> Hi Nanakos,
> My apologies for not responding to the message that you sent to me
> personally three days ago, but I was on vacation in Hawaii; the best
> place to send queries about ext4 file systems is to use the
> mailing list.
> One thing that I would immediately suggest is to see whether you can
> reproduce this bug using a modern kernel.  You are currently using a
> RHEL6-derived kernel (2.6.32-220.4.1.el6.x86_64).  The ext4 file
> system in such a kernel is quite different from what is in upstream,
> and there were a large number of bugs that have been fixed in ext4
> since 2.6.32.  Many of these fixes were backported into the RHEL6
> kernel, but I'm not an expert on which fixes have been backported into
> RHEL6 and which haven't.  (Especially since Red Hat doesn't release
> broken-out patches for their RHEL kernels....)
> My understanding is that Gluster doesn't require any kernel-side
> patches, so it should be OK to run Gluster on a v3.2 kernel.
> Alternatively, if you are a paid customer of RHEL6, I'd suggest
> sending a support request to Red Hat.
> Best regards,
>                                       - Ted
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