Date: Mon, 20 Sep 2004 17:16:30 +0100 From: Nik Clayton <nik@FreeBSD.ORG> To: Nik Clayton <nik@FreeBSD.ORG>, current@FreeBSD.ORG Subject: Re: Brief freezes with -current as of early last week Message-ID: <20040920161628.GG30307@clan.nothing-going-on.org> In-Reply-To: <20040920160019.GA3403@VARK.MIT.EDU> References: <20040920100038.GA30307@clan.nothing-going-on.org> <20040920160019.GA3403@VARK.MIT.EDU>
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--TmwHKJoIRFM7Mu/A Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Sep 20, 2004 at 12:00:19PM -0400, David Schultz wrote: > This sounds like an I/O hang. I've been having similar problems > related to WRITE_DMA and READ_DMA timeouts from the ata driver in > the last week or so, as discussed last week on this list. Are you > seeing these messages from the kernel? =20 Like these? ad0: TIMEOUT - READ_DMA retrying (2 retries left) LBA=3D47240127 ad0: WARNING - READ_DMA no interrupt but good status ad1: TIMEOUT - READ_DMA retrying (2 retries left) LBA=3D165370263 ad1: WARNING - READ_DMA no interrupt but good status ad0 is a 2 year old 40GB disk, ad1 is 1 week old 120GB disk. > Julian suggested disabling > preemption, which I haven't tried yet, but other people report > limited success. I'm not running a kernel with 'options PREEMPTION' compiled in... N --=20 FreeBSD: The Power to Serve http://www.freebsd.org/ (__) FreeBSD Documentation Project http://www.freebsd.org/docproj/ \\\'',) \/ \= ^ --- 15B8 3FFC DDB4 34B0 AA5F 94B7 93A8 0764 2C37 E375 --- .\._/= _) --TmwHKJoIRFM7Mu/A Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.6 (FreeBSD) iD8DBQFBTwJck6gHZCw343URAvAtAKCEMkn8vaDPuKGeu+riB7Zy+C7E/gCggep1 cnuGkq9pToTBAG7v/W2H5vU= =hH86 -----END PGP SIGNATURE----- --TmwHKJoIRFM7Mu/A--
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