aic79xx + tape 2.6.13.5 -> 2.6.15.4 problem

Begin forwarded message:

Date: Mon, 27 Feb 2006 18:45:56 -0800
From: Frithjof Kruggel <[email protected]>
To: [email protected], [email protected]
Subject: aic79xx + tape 2.6.13.5 -> 2.6.15.4 problem

Sorry to bother you with this. I have a server
system equipped with an Adaptec U320 board,
attached a HP Ultrium 2 drive.
Since I upgraded from kernel version 2.6.13.5
to 2.6.15.4, tape write speeds dropped from
22 MB/s to 4.5 MB/s. Looks like asynchonous
write mode is now negotiated.
Any help is appreciated - please, cc to my
address above as I am not a regular reader.
Thanks,

Frithjof
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