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	Fri, 14 Nov 1997 10:11:14 -0500 (EST)
Date: Fri, 14 Nov 1997 10:11:14 -0500 (EST)
From: Garrett Wollman <wollman@khavrinen.lcs.mit.edu>
Message-Id: <199711141511.KAA23698@khavrinen.lcs.mit.edu>
To: Steve Hovey <shovey@buffnet.net>
Cc: bugs@FreeBSD.ORG
Subject: AHC_* problems
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<<On Fri, 14 Nov 1997 03:08:21 -0500 (EST), Steve Hovey <shovey@buffnet.net> said:

> Ive tried the 3 AHC_ options, and if the controller is a wide or ultra
> wide scsi adapter - it hangs with errors within a day or so

Perhaps I'm missing some vital context, but that's certainly not my
experience.  I've got a machine (running 2.2.5++) configured thusly:

controller      ahc0
options         AHC_TAGENABLE
options         AHC_ALLOW_MEMIO
controller      scbus0 at ahc0 bus 0

device          sd0 at scbus0 target 0
device          sd1 at scbus0 target 4
device          sd2 at scbus0 target 10
device          st0 at scbus0 target 3
device          cd0 at scbus0 target 5
device          pt0 at scbus0 target 6

and uptime says:
10:03AM  up 4 days, 19:39, 1 user, load averages: 0.11, 0.19, 0.18

and my log-file analyzer says (just since this morning):

      Total articles accepted:    180618 (mci 34.6%, maxwell 30.0%)
      Total articles rejected:     81020 (mci 61.4%, netnews.com 29.6%)
          Total spam filtered:     75965 (mci 62.1%, netnews.com 31.1%)
    Spam with bad message-ids:     11760
   Duplicate articles offered:    865957
   Peer synchronization ratio:      84.3%

So, I'd venture to say that this machine, which has an ultra-wide
controller and does disk I/O continuously, does not `hang with errors
within a day or so'.  In fact, it has never crashed, and only once has
it spontaneously rebooted, in the two months it's been operating.

-GAWollman

OBTW, over the entire 4 days and change:

      Total articles accepted:   2155199 (maxwell 35.8%, mci 23.2%)
      Total articles rejected:    764695 (mci 43.6%, netnews.com 38.7%)
          Total spam filtered:    702491 (mci 44.9%, netnews.com 41.0%)
    Spam with bad message-ids:     94234
   Duplicate articles offered:  10190921
   Peer synchronization ratio:      76.4%

--
Garrett A. Wollman   | O Siem / We are all family / O Siem / We're all the same
wollman@lcs.mit.edu  | O Siem / The fires of freedom 
Opinions not those of| Dance in the burning flame
MIT, LCS, CRS, or NSA|                     - Susan Aglukark and Chad Irschick