I have some idea about the problem.
The driver renegotiates on auto request sense following a check condition.
Given the default verbosity of the driver, if you are using variable
blocks with the device returning check condition status on each I/O in
order to allow to retrieve the actual block size using a request sense,
then the problem gets clear.
Could you for now try the following boot options:
sym53c8xx=verb:0,debug:0
Thanks for the report.
G�rard.
On Wed, 12 Jul 2000, Hartwig Felger wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Salut,
> as I made a backup on my tape, I tryed to get an index in a second run. I
> do that with dds2index (Version 2.4.12 pretty old...). It took a huge
> amount of time. Later I found out, that it had filled my /var/log/message
> - -----------o<----------
> Jul 7 00:01:18 dog kernel: scntl3=0x30 scntl4=0x0 ofs=15 fak=2 chg=0.
> Jul 7 00:01:18 dog kernel: sym53c875-0-<6,0>: sync msgout: 1-3-1-c-10.
> Jul 7 00:01:18 dog kernel: sym53c875-0-<6,0>: sync msg in: 1-3-1-20-f.
> Jul 7 00:01:18 dog kernel: sym53c875-0-<6,0>: sync: per=32 scntl3=0x30
> scntl4=0x0 ofs=15 fak=2 chg=0.
> Jul 7 00:01:18 dog kernel: sym53c875-0-<6,0>: sync msgout: 1-3-1-c-10.
> Jul 7 00:01:18 dog kernel: sym53c875-0-<6,0>: sync msg in: 1-3-1-20-f.
> Jul 7 00:01:18 dog kernel: sym53c875-0-<6,0>: sync: per=32 scntl3=0x30
> scntl4=0x0 ofs=15 fak=2 chg=0.
> ...
> got 316 lines a second!!!
> - --------------------->o-------------
>
> Today I tryed to do a tar behind the backup, just to watch what the log
> may say - for that I did a "mtst fsf 2":
> - -------------------o<--------------------
> Jul 12 20:38:37 dog kernel: Detected scsi tape st0 at scsi0, channel 0, id
> 6, lun 0
> Jul 12 20:38:37 dog kernel: st: bufsize 32768, wrt 30720, max init.
> buffers 4, s/g segs 16.
> Jul 12 20:38:37 dog kernel: sym53c875-0-<6,0>: sync msgout: 1-3-1-c-10.
> Jul 12 20:38:37 dog kernel: sym53c875-0-<6,0>: sync msg in: 1-3-1-20-f.
> Jul 12 20:38:37 dog kernel: sym53c875-0-<6,0>: sync: per=32 scntl3=0x30
> scntl4=0x0 ofs=15 fak=2 chg=0.
> Jul 12 20:38:37 dog kernel: sym53c875-0-<6,*>: FAST-10 SCSI 6.7 MB/s (150
> ns, offset 15)
> Jul 12 20:38:37 dog kernel: sym53c875-0-<6,0>: sync msgout: 1-3-1-c-10.
> Jul 12 20:38:37 dog kernel: sym53c875-0-<6,0>: sync msg in: 1-3-1-20-f.
> Jul 12 20:38:37 dog kernel: sym53c875-0-<6,0>: sync: per=32 scntl3=0x30
> scntl4=0x0 ofs=15 fak=2 chg=0.
> Jul 12 20:38:37 dog kernel: st0: Block limits 1 - 16777215 bytes.
> - ----------------->o------------------
> tar did not produce a line in the log (fine!). So I think, it has
> something to do with positioning.
>
> hartwig :-(
>
> - --
> 1024D/339FD693 Hartwig Felger <[EMAIL PROTECTED]>
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> For the pulic keys, please visit my page.
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