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Re: Data loss XFS with RT kernel on Debian.

To: Jan de Kruyf <jan.de.kruyf@xxxxxxxxx>
Subject: Re: Data loss XFS with RT kernel on Debian.
From: Dave Chinner <david@xxxxxxxxxxxxx>
Date: Mon, 7 Jul 2014 09:57:01 +1000
Cc: xfs@xxxxxxxxxxx
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <CAA85NCjXU7rK8C4AcQ4Tnxowx5MFBUyAoLW_nuwmKyOFL-_PgQ@xxxxxxxxxxxxxx>
References: <CAA85NCjXU7rK8C4AcQ4Tnxowx5MFBUyAoLW_nuwmKyOFL-_PgQ@xxxxxxxxxxxxxx>
User-agent: Mutt/1.5.21 (2010-09-15)
On Sat, Jul 05, 2014 at 02:41:06PM +0200, Jan de Kruyf wrote:
> Hallo,
> While doing a reasonably high density job like rsynching a subdirectory
> from one place to another, or tarring it to a pipe and untarring it at the
> other end, I note that the cpu usage goes practically to 100% and when I
> after 5 minutes or so I reset the computer the writing has not finished at
> all.
> However on the stock Debian kernel it works without a problem.

Which says that it's a RT kernel problem, not an XFS issue. There
have been other recent reports of issues with RT kernels, and they
have proven to be core RT kernel bugs, not filesystem issues. I'd
suggest that you are likely to be seeing the same RT issues....


Dave Chinner

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