Date: Fri, 16 Apr 2004 14:14:16 +0200 From: Pawel Jakub Dawidek <pjd@FreeBSD.org> To: Julien Gabel <jpeg@thilelli.net> Cc: freebsd-current@freebsd.org Subject: Re: Can't *write* to a hard disk, problem related to GEOM(4)? Message-ID: <20040416121416.GG24376@darkness.comp.waw.pl> In-Reply-To: <50219.192.168.0.105.1082116474.squirrel@webmail.thilelli.net> References: <50267.192.168.0.105.1082054761.squirrel@webmail.thilelli.net> <5236.1082057026@critter.freebsd.dk> <49481.192.168.0.105.1082110471.squirrel@webmail.thilelli.net> <20040416113702.GF24376@darkness.comp.waw.pl> <50219.192.168.0.105.1082116474.squirrel@webmail.thilelli.net>
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On Fri, Apr 16, 2004 at 01:54:34PM +0200, Julien Gabel wrote:
+> >>>> /dev/ad10 was previously part of a hardware miror (ar(4) device with
+> >>>> a HighPoint HPT374 (channel 2+3) UDMA133 controller), but since it =
was
+> >>>> broken for an unknown reason, thid drive is no more usable, even
+> >>>> alone. For example, I am not be able to create a new slice on it.
+>=20
+> >>> Could you try to compile a kernel without the ar(4) driver in it ?
+> >>> It may still be latching on to this disk...
+>=20
+> >> Since the ar(4) driver is part of ata(4) generic ATA/ATAPI disk
+> >> controller driver, I don't think it is possible to do that without
+> >> shooting myself on the foot. Any ideas?
+>=20
+> > Could you post output from:
+> > # sysctl -b kern.geom.confxml
+>=20
+> Sure. Because the output is 1128 lines long, the output is attached.
It doesn't look like a GEOM problem:
<provider id=3D"0xc6cad980">
<geom ref=3D"0xc6cad880"/>
<mode>r0w0e0</mode>
<name>ad10</name>
<mediasize>122942324736</mediasize>
<sectorsize>512</sectorsize>
<config>
<fwheads>16</fwheads>
<fwsectors>63</fwsectors>
</config>
</provider>
As you can see, this provider is not opened (r0w0e0).
Try to set kern.geom.debugflags to 4. It will show you all access requests.
--=20
Pawel Jakub Dawidek http://www.FreeBSD.org
pjd@FreeBSD.org http://garage.freebsd.pl
FreeBSD committer Am I Evil? Yes, I Am!
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