Date: Sun, 3 Oct 2010 04:28:59 -0700 From: David Wolfskill <david@catwhisker.org> To: Brandon Gooch <jamesbrandongooch@gmail.com>, current@freebsd.org Subject: Re: Hang near end of kernel probes since r213267 (likely earlier) Message-ID: <20101003112859.GW1535@albert.catwhisker.org> In-Reply-To: <20101002033859.GK1535@albert.catwhisker.org> References: <20101001212038.GE1535@albert.catwhisker.org> <20101001233001.GG1535@albert.catwhisker.org> <20101002013344.GI1535@albert.catwhisker.org> <AANLkTiny8TxsT0jObNqF7Jnkp-wrPBSecp_Y3%2BnKazNg@mail.gmail.com> <20101002033859.GK1535@albert.catwhisker.org>
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--Zge/9PCkZKCDTZ2X Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Oct 01, 2010 at 08:38:59PM -0700, David Wolfskill wrote: > On Fri, Oct 01, 2010 at 08:56:13PM -0500, Brandon Gooch wrote: > > ... > > > Any ideas on what mught be causing CURRENT to hang -- sometimes > > > -- given that it appears to involve the Modular Bay (or the specific > > > device that is in the bay during the hang)? > > > > >=20 > > If you haven't already, it may be worth trying 'options ATA_CAM' in > > your kernel config. > ... > And -- probably more important for this discussion -- I was unable to > re-create the failing condition: the machine booted Just Fine every > time I tried it, whether the CD/DVD drive was inserted or not. > ... That assessment (on my part) was premature. The attempt to boot from slice 4, running: FreeBSD g1-222.catwhisker.org. 9.0-CURRENT FreeBSD 9.0-CURRENT #3 r213357: = Sat Oct 2 06:29:23 PDT 2010 root@g1-222.catwhisker.org.:/usr/obj/usr/s= rc/sys/CANARY i386 immediately prior to the one I just did: * was using a kernel with the ATA_CAM enabled, as may be noted by the device name in: g1-222(9.0-C)[2] df -h / Filesystem Size Used Avail Capacity Mounted on /dev/ada0s4a 1.4G 327M 1.0G 25% / g1-222(9.0-C)[3]=20 * hung at the previously-discussed point. It appears that running a kernel with option ATA_CAM may well reduce the probability of this apparently intermittent mode of failure. Peace, david --=20 David H. Wolfskill david@catwhisker.org Depriving a girl or boy of an opportunity for education is evil. See http://www.catwhisker.org/~david/publickey.gpg for my public key. --Zge/9PCkZKCDTZ2X Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.16 (FreeBSD) iEYEARECAAYFAkyoaPoACgkQmprOCmdXAD2iAgCeITG0aLUJ+rrotwEK6kZf5qVs XAAAnRL0liKKQlgO1BGgbcpXCi7wx+wD =hZGU -----END PGP SIGNATURE----- --Zge/9PCkZKCDTZ2X--
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