Messages in this thread |  | | Date | Wed, 5 Sep 2001 00:34:57 +0200 (MET DST) | From | Mikael Pettersson <> | Subject | Re: idetape broke in 2.4.x-2.4.9-ac5 (write OK but not read) ide-scsi works in 2.4.4 |
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On Mon, 3 Sep 2001 20:14:06 -0400, Pete Zaitcev wrote:
>> - block size: The 2.4 ide-tape driver only works reliably if you >> write data with the correct block size. If you don't write full >> blocks the last block of data may not be readable. > >I fixed that some time ago, it's in current -ac >if not in Linus's tree.
Sorry, but that's not correct. I just ran a test, and the bug is still there in 2.4.9-ac7. Maybe you're thinking of some other bug?
ide-tape tells me it uses a 14*26KB buffer for my Seagate STT8000A. If I dd a 39KB (1.5 "buffer units") file with bs=1k to /dev/ht0 it tells me it wrote 39 blocks. If I then rewind and dd with bs=1k from /dev/ht0 it only reads 26 blocks. The same happens in 2.2 + Hedrick's IDE patch.
2.2 vanilla reads 56 blocks, of which the first 39 are identical to what I initially wrote. The last 13 contain junk but that's not a big problem since I back up with tar which writes its own EOF mark.
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