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Date: Mon, 17 Apr 2006 21:03:08 -0700
From: Andrew Morton <akpm@osdl.org>
To: Srihari Vijayaraghavan <sriharivijayaraghavan@yahoo.com.au>
Cc: linux-kernel@vger.kernel.org
Subject: Re: 2.6.16.1 & D state processes
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Srihari Vijayaraghavan <sriharivijayaraghavan@yahoo.com.au> wrote:
>
> I've reported the same problem on FC5 kernels
>  (https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=186856)
>  too, assuming it was an FC only problem. But as it
>  turns out, kernel.org kernels too suffer from this,
>  though it took a while to prove that :(.

Your I/O system has lost some I/O requests: we sent write requests down,
and no completion ever came back.

It could be a broken device driver - please describe the I/O stack.

Or it could be lost interrupts - could be broken platform interrupt setup,
or broken hardware.