Date: Tue, 24 Apr 2007 09:29:53 -0700 From: "Josh Carroll" <josh.carroll@gmail.com> To: "Thomas Quinot" <thomas@freebsd.org> Cc: freebsd-scsi@freebsd.org, bug-followup@freebsd.org Subject: Re: kern/103602: drive gets wedged on READ CD CAPACITY if no disc is in Message-ID: <8cb6106e0704240929j38178df6k1b6391446c69a2ae@mail.gmail.com> In-Reply-To: <20070424162008.GA7087@melamine.cuivre.fr.eu.org> References: <20070326180018.GA23771@melamine.cuivre.fr.eu.org> <8cb6106e0703261318o120c620ar6b2461802632fc01@mail.gmail.com> <8cb6106e0703262119g5a9afd4m2c3d5665c85c4969@mail.gmail.com> <4608A35E.3010404@samsco.org> <8cb6106e0703262157m7fd0ae96p3bb5368af797dc6b@mail.gmail.com> <460AA9E3.4030106@samsco.org> <8cb6106e0703281531k4c5bebecp5566c64c8f458a74@mail.gmail.com> <8cb6106e0704030039if46397fvfc993d9c9e19e1fc@mail.gmail.com> <8cb6106e0704032107w457026b1t1e04ed11008af48a@mail.gmail.com> <20070424162008.GA7087@melamine.cuivre.fr.eu.org>
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> Here's what I observe here, first with no disk in the drive (the > important item is sk=02, NOT READY), second with a disk in the drive. Here is my output (first with no disk, second with). I see sk=02 here as well: % ./readcap /dev/acd0 ioctl returned error 5 Input/output error Sense data: error=70 sk=02 asc=3a ascq=00 % ./readcap /dev/acd0 ioctl returned error 0 Unknown error: 0 Sense data: error=00 sk=00 asc=00 ascq=00 LBA of last sector in last session: 185805 Sector size: 2048 So it looks like directly talking to the ATAPI layer works ok here as well. At least, my results look the same as yours. > > Interestingly, the sg_vpd command fails to read the serial # as well, > > so that is definitely a known bug with this drive I think. Here is the > > sg_vpd output on Knoppix: > > OK, so ultimately we might need to include this quirk anyway. We'll see. I was able to boot into Windows XP and run sg_vpd in there as well, and it also fails to read the serial number. Just some additional info on that. :) Thanks, Josh
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