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Date:      Wed, 8 Jun 2005 13:16:59 +0200
From:      Jean-Yves Lefort <jylefort@FreeBSD.org>
To:        Simon Barner <barner@FreeBSD.org>
Cc:        jroberson@chesapeake.net, current@freebsd.org
Subject:   Re: Sound skipping problems
Message-ID:  <20050608131659.2f05a1d9.jylefort@FreeBSD.org>
In-Reply-To: <20050608104844.GA24060@zi025.glhnet.mhn.de>
References:  <20050607210453.S16943@mail.chesapeake.net> <20050608104844.GA24060@zi025.glhnet.mhn.de>

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On Wed, 8 Jun 2005 12:48:44 +0200
Simon Barner <barner@FreeBSD.org> wrote:

> Jeff Roberson wrote:
> > I have a patch that should greatly improve the sound skipping problems
> > people have under heavy io load.  Several people sent me traces that
> > showed the buf daemon running for hundreds of milliseconds with Giant
> > held, which can hold up the pcm code.  The patch is available at:
> >=20
> > http://www.chesapeake.net/~jroberson/flushbuf.diff
>=20
> [...]
>=20
> Can I use the patch on 5.4-STABLE? It applies cleanly (with offset,
> though), but I prefer to ask before doing useless tests.

I've just tested it on 5.4-RELEASE, and it causes the system to hang
after a few seconds of heavy disk I/O.

--=20
Jean-Yves Lefort

jylefort@FreeBSD.org
http://lefort.be.eu.org/

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