On Wed, 9 Oct 2002, David O'Brien wrote: > Also SCSI CDROM's are now only mountable as /dev/cd0, not /dev/cd0a as > before. I wonder how many others got hit by that.
Apparently not as many as got hit by the block number scaling bug. I guess most users only have atapi cdroms. This is a good change, but needs time for conversion. The SCSI CDROM driver has some very nice new bugs apart from broken label contents. I have noticed the following so far: - b_pblkno seems to be unitialized. I think it is always 0, This affects mainly disksort^Wbioq_disksort(). The driver used to use b_pblkno internally and the scaling bug was introduced by replacing this by b_blkno and fixed by scaling b_blkno to the value that b_pblkno should be set to. - block sizes and offsets that are not a multiple of the sector size are now accepted, but don't work. E.g., dd with a block size of 1 byte doesn't fail, but produces garbage. - offsets beyond EOF are now accepted in software and are only rejected in hardware. This spams the console with error messages and gives wrong error handling (EIO; should be EOF (no error)). Bruce To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
