Messages in this thread | | | Date | Thu, 13 Nov 2003 13:20:39 +0100 | From | Jens Axboe <> | Subject | Re: 2.9test9-mm1 and DAO ATAPI cd-burning corrupt |
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On Thu, Nov 13 2003, Bill Davidsen wrote: > On Tue, 11 Nov 2003, Linus Torvalds wrote: > > > > > On Wed, 12 Nov 2003, Pascal Schmidt wrote: > > > > > > My guess would be that an MO drive needs a different way to find out > > > the capacity than a CD-ROM. After all, when using ide-scsi, it is the > > > sd driver and not sr that handles the drive. The rest of the problems > > > could be due to the wrong capacity information? > > > > Yes. That would explain a lot. > > > > The ide-scsi thing never uses "cdrom_get_last_written" crud. It just uses > > the regular READ_CAPACITY command (0x25). > > > > Which is what ide-cd.c will fall back to as well ("cdrom_read_capacity()") > > but I think it should _start_ with that rather than fall back on it. > > That's the simple case, after all. > > Are there any cases when the last_written size is really what's wanted, > rather than the capacity? Such as unclosed multi-session iso9660, ufs, or > whatever else I'm ignoring?
Yes, for packet written media.
-- Jens Axboe
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