Date: Wed, 08 May 2002 09:14:48 +0800 From: Christopher Hall <hsw@acm.org> To: Dennis Mathiasen <dennis@ny-utica5a-435.aburny.adelphia.net> Cc: FreeBSD-stable@FreeBSD.ORG Subject: Re: ata & mitsumi CD Message-ID: <200205080114.g481EmQ5024846@x4.tucheng.generalresources.com> In-Reply-To: Message from Dennis Mathiasen <dennis@ny-utica5a-435.aburny.adelphia.net> of "Tue, 07 May 2002 12:09:53 -0400." <200205071609.g47G9rSL003024@ny-utica5a-435.aburny.adelphia.net>
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In message <200205071609.g47G9rSL003024@ny-utica5a-435.aburny.adelphia.net>, Dennis Mathiasen writes: > >Running 4.6-PRERELEASE, I can mount a cd ok, but when I try to copy a file fro >m the cd I get: > >acd0: READ_BIG command timeout >ata1: resetting devices > >and then: > >Fatal trap 12 page fault while in kernel mode... >(etc.) >and then a re-boot. There have been several threads related to CD/DVD ROM problems and one pr: i386/37420. Each thread stopped after atacontrol was used to set the drive into dma mode, so I guess this worked for their case. However, since both pio and dma mode give the same error on my CDROM drives I reverted to 4.5-RELEASE-p3 and watch the mailing list to to see if anyone else has the problem and check cvsup to see if sys/dev/ata is modified before I try -stable again on those systems. 4.5-RELEASE-p4 does not have any changes to atapi-cd.c so I would expect that to work (I have not tested this yet). >I have tried reverting to the wd driver and included mcd in the kernel, >but mcd never shows up in dmesg output. How can I (or can I) cause the >use of this driver? I don't know about this, but I am fairly sure that mcd is only for a Mitsumi ISA interface card. >mcd is for Mitsumi drives which apparently use a non-conforming ATAPI >interface. However, until now it has worked. I'd sometimes get IO >timeout messages, but nothing worse. > >Thanks. > >Dennis Mathiasen >dennisma@adelphia.net > >To Unsubscribe: send mail to majordomo@FreeBSD.org >with "unsubscribe freebsd-stable" in the body of the message > --- Christopher Hall <hsw@generalresources.com> Fax: +886-2-2795-3030 Christopher Hall <hsw@acm.org> Phone: +886-2-2795-5799 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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