From owner-freebsd-questions  Fri Nov  6 00:41:49 1998
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Date: Fri, 06 Nov 1998 08:42:23 +0000
From: Elaine Wearing <ejw@community.co.uk>
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Subject: DPT Driver errors
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We are using a DPT Smart Raid IV Card, PM3334UW on a RAID5 to run a news
server. Although the CPU percentage is not too high the SCSI disks can
hammer quite violently!
The problem that is occuring is that in the /var/log/messages file (and
on the console) we are getting the following errors:

dpt0: At the age of 45919us, 227372756 is a stale transaction
dpt0 ERROR: Marking 227372756 (Read (10) [6.1.5]) on c0b0t0u0
            as late after 10616074usec
dpt0 ERROR: Destroying stale 227372756 (Read (10) [6.1.5])
                on c0b0t0u0 (20618454/23)
dpt0: At the age of 82720us, 227373240 is a stale transaction
dpt0 ERROR: Marking 227373240 (Write (10) [6.1.18]) on c0b0t0u0
            as late after 10841052usec
dpt0 ERROR: Destroying stale 227373240 (Write (10) [6.1.18])
                on c0b0t0u0 (20843439/24)
dpt0: At the age of 1186476us, 227379992 is a stale transaction
dpt0 ERROR: Marking 227379992 (Read (10) [6.1.5]) on c0b0t0u0
            as late after 10856070usec
dpt0 ERROR: Destroying stale 227379992 (Read (10) [6.1.5])
                on c0b0t0u0 (20858448/25)
dpt0: At the age of 212133us, 227382097 is a stale transaction
dpt0 ERROR: Marking 227382097 (Read (10) [6.1.5]) on c0b0t0u0
            as late after 10752663usec
dpt0 ERROR: Destroying stale 227382097 (Read (10) [6.1.5])
                on c0b0t0u0 (20755042/26)
dpt0: At the age of 11542us, 227386561 is a stale transaction
dpt0 ERROR: Marking 227386561 (Read (10) [6.1.5]) on c0b0t0u0
            as late after 10569146usec
dpt0 ERROR: Destroying stale 227386561 (Read (10) [6.1.5])
                on c0b0t0u0 (20571525/27)
dpt0: At the age of 69138us, 227386733 is a stale transaction
dpt0 ERROR: Marking 227386733 (Read (10) [6.1.5]) on c0b0t0u0
            as late after 10664800usec
dpt0 ERROR: Destroying stale 227386733 (Read (10) [6.1.5])
                on c0b0t0u0 (20667182/28)
dpt0: At the age of 82629us, 227387746 is a stale transaction

Also the news server is very slow at collating the headers before
downloading them!!
Can anyone help??

Thanks in advance for any help

Elaine Wearing


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