Date: Sun, 28 Aug 2005 09:52:54 +0200 From: Fabian Keil <freebsd-listen@fabiankeil.de> To: Gavin Atkinson <gavin.atkinson@ury.york.ac.uk> Cc: freebsd-current@freebsd.org Subject: Re: Reproducible FreeBSD 6.0-BETA2 panic - probably ATA-ng related Message-ID: <20050828095254.3de97e88@localhost> In-Reply-To: <20050823133046.Q73182@ury.york.ac.uk> References: <20050821150125.56f992e0@localhost> <20050823133046.Q73182@ury.york.ac.uk>
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--Signature_Sun__28_Aug_2005_09_52_54_+0200_5Dx/n+d95+o7E4jE Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Gavin Atkinson <gavin.atkinson@ury.york.ac.uk> wrote: > On Sun, 21 Aug 2005, Fabian Keil wrote: > > I own a Plextor PlexWriter Premium, the drive has a buggy firmware > > which crashes if you try to burn multi session in SAO mode. > > On FreeBSD 6.0-BETA2 a panic is caused: >=20 > [snip the CD ROM drive detaching...] =20 > It's a known issue. I see exactly this same panic 80% of the time on my= =20 > laptop on resume from ACPI suspend. I believe it was introduced during=20 > the newbus-ification of ATA-mk3. On the call to acd_geom_detach,=20 > acd_softc is already null. >=20 > (kgdb) f 23 > #23 0xc04dd936 in acd_geom_detach (arg=3D0xc16dd680, flag=3D0) > at /usr/src/sys/dev/ata/atapi-cd.c:199 > 199 g_wither_geom(cdp->gp, ENXIO); > (kgdb) list > 194 acd_geom_detach(void *arg, int flag) > 195 { > 196 struct acd_softc *cdp =3D device_get_ivars(arg); > 197 > 198 /* signal geom so we dont get any further requests */ > 199 g_wither_geom(cdp->gp, ENXIO); > 200 > 201 /* fail requests on the queue and any thats "in flight" for t= his device */ > 202 ata_fail_requests(arg); > 203 > (kgdb) p cdp > $5 =3D (struct acd_softc *) 0x0 Thanks for the information. Is this the problem you described in <http://lists.freebsd.org/pipermail/cvs-src/2005-May/045876.html> and did you already find the causing commit? Fabian --=20 http://www.fabiankeil.de/ --Signature_Sun__28_Aug_2005_09_52_54_+0200_5Dx/n+d95+o7E4jE Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (FreeBSD) iD8DBQFDEW1kjV8GA4rMKUQRAg2YAKDYgMIEBvaPQAVoN5EzCtJe0X5J/wCgpTVZ G3suL7JkztnR2SJS1cgKdK4= =gSG0 -----END PGP SIGNATURE----- --Signature_Sun__28_Aug_2005_09_52_54_+0200_5Dx/n+d95+o7E4jE--
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