Hi all,
I experienced problems with kernel 2.2.15 with the latest aic7xxx driver
added (5.1.29). My external 100M ZIP drive is attached to the external port
of my adaptec 2940 (no ultra, just fast, bios 1.23). It hangs the SCSI bus
when I attempt to access it. I can hear the CD ROM resetting so I think the
driver resets the bus - but no messages (anymore?) in /var/log/messages or
/var/log/warn.
/proc/scsi/scsi/aic7xxx/0 shows that during that period (1-2 minutes, I was
too alerted to time it ;-) no interrupts are occuring on the adaptec and I
can no longer access anything on the scsi bus. It recovers after some
minutes or when I eject the ZIP disk (the driver then starts to flood
/var/log/messages and /var/log/warn about timeouts and inaccessible
sectors).
Think I need to add that the ZIP drive uses 5 MB/s async transfers and yes
- I disabled bus termination on the 2940. The are absolutely no problems
with the internal scsi devices (disks, CD ROM, DAT).
Kernel 2.2.14 (with aic7xxx 2.1.25) is ***NOT*** exhibiting this problem
(so I think this is not a termination/bus issue), and I do ***NOT*** think
this is a kernel issue but an aic7xxx driver problem.
Next I'm going to try plain 2.2.15 w/ aic7xxx 5.1.28.
- Is anybody else also experiencing this problem?
- Anything else I can provide to help analyzing/fixing this problem?
Thanks is advance.
Mit freundlichen Gruessen / best regards
Michael Kwasigroch
FaxPlus/Open Development
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INTERCOPE GmbH
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