Date: Thu, 12 Nov 1998 16:00:01 -0800 (PST) From: "Kenneth D. Merry" <ken@plutotech.com> To: freebsd-bugs@FreeBSD.ORG Subject: Re: kern/8671: sd0->da0 change breaks change of media and MSDOS removeable disks (Zip) Message-ID: <199811130000.QAA05119@freefall.freebsd.org>
next in thread | raw e-mail | index | archive | help
The following reply was made to PR kern/8671; it has been noted by GNATS. From: "Kenneth D. Merry" <ken@plutotech.com> To: bad@wireless.net Cc: freebsd-gnats-submit@FreeBSD.ORG Subject: Re: kern/8671: sd0->da0 change breaks change of media and MSDOS removeable disks (Zip) Date: Thu, 12 Nov 1998 16:58:42 -0700 (MST) bad@wireless.net wrote... > >Description: > Under 3.0-SNAP-19980821 Zip disks (Parallel port, but using SCSI protocol) > worked perfectly with the sd0 device driver. > > However, in 3.0-RELEASE the major move from sd0 to {cam}/da0 was made, > and now MSDOS Zip disks cannot be mounted/format, etc. > > The only access that works is with FFS Zip's, and ONLY if you boot up with > the disk inserted. If one mounts and then unmounts the Zip, removes it from > drive, and plugs in a new zip, the system is incapable of reading the > new disklabel, and subsequently crashes, with the dump stating it was > in {cam} at the time of crash. > >How-To-Repeat: > Compile custom kernel with ppbus, vpo0, scsi controller, and device da0. > Boot up with Zip disk in parallel port zip drive, mount, unmount, > remove Zip, reinsert.. Subsequently watch system panic. Please send a stack trace from the panic. Without more information, it's going to be difficult to diagnose your problem. > >Fix: > Temporary fix: Make a config option so that one can use the old sd0 > driver with Parallel port Zip disk, until {cam/da0} properly works > with removeable media. The da driver does work with removable media. Using the old sd driver with CAM would be extremely difficult to implement, and would probably not be a very fruitful endeavor. Ken -- Kenneth Merry ken@plutotech.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199811130000.QAA05119>