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Re: XFS umount issue

To: Dave Chinner <david@xxxxxxxxxxxxx>
Subject: Re: XFS umount issue
From: Nuno Subtil <subtil@xxxxxxxxx>
Date: Wed, 25 May 2011 01:08:11 -0700
Cc: Paul Anderson <pha@xxxxxxxxx>, xfs-oss <xfs@xxxxxxxxxxx>
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On Tue, May 24, 2011 at 17:29, Dave Chinner <david@xxxxxxxxxxxxx> wrote:
...
>> Mine is a Netgear Stora. The interesting bit is that the stock
>> firmware runs kernel 2.6.22.18 and uses XFS as well, but I don't know
>> how stable it was to begin with.
>
> Have you checked to see whether there are extra patches added to
> that kernel by Netgear? It's not uncommon for these embedded systems
> to run a kernel that has been patched to fix problems that you are
> seeing.

I looked through it and didn't see anything that stood out, although I
could have easily missed it (the diff is quite noisy, plus it sounds
like the vmap cache invalidation functions have changed names in the
meantime?).

The one interesting bit that I found was that the Netgear kernel
comments out the test that disables write barriers at mount time,
which I found quite odd, but it sounds unrelated to this issue.

Nuno

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