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Date:      Thu, 17 Sep 1998 12:49:45 +0200
From:      Joakim Henriksson <murduth@ludd.luth.se>
To:        freebsd-scsi@FreeBSD.ORG
Subject:   CAM and the amazing locking scsi bus
Message-ID:  <199809171049.KAA01448@rmstar.campus.luth.se>

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Hi! When i tried CAM today after the integration i get a locked SCSI bus when 
doing lots of seeks (fts on whole filesystems). Here comes some outputs from 
my logs. It doesnt seem serious and probably is me shooting myself in the 
foot. Could someone tell me how not to, or is more data needed? :) I run 
current as of yesterday if that makes any difference.

Sep 17 07:39:30 rmstar /kernel: (da0:ncr0:0:0:0): tagged openings now 25
Sep 17 07:40:32 rmstar /kernel: ncr0: timeout nccb=f0bcda00 (skip)
Sep 17 07:40:32 rmstar /kernel: ncr0: timeout nccb=f0c63800 (skip)
Sep 17 07:40:32 rmstar /kernel: ncr0: timeout nccb=f0c47e00 (skip)
.
.
.


<dmesg from an older (working) kernel>
ncr0: <ncr 53c810 fast10 scsi> rev 0x02 int a irq 12 on pci0.10.0
ncr0: waiting for scsi devices to settle
scbus0 at ncr0 bus 0
sd0 at scbus0 target 0 lun 0
sd0: <IBM DPES-31080 S31Q> type 0 fixed SCSI 2
sd0: Direct-Access 
sd0: 10.0 MB/s (100 ns, offset 8)
1034MB (2118144 512 byte sectors)
sd0: with 4903 cyls, 4 heads, and an average 108 sectors/track
sd1 at scbus0 target 2 lun 0
sd1: <CONNER CFP2107S  2.14GB 1524> type 0 fixed SCSI 2
sd1: Direct-Access 
sd1: 10.0 MB/s (100 ns, offset 8)
2048MB (4194304 512 byte sectors)
sd1: with 3999 cyls, 10 heads, and an average 104 sectors/track
st0 at scbus0 target 4 lun 0
st0: <EXABYTE EXB-8500SMBANXH1 0458> type 1 removable SCSI 2
st0: Sequential-Access 
st0: 4.0 MB/s (250 ns, offset 8)
density code 0x15,  drive empty
cd0 at scbus0 target 6 lun 0
cd0: <MATSHITA CD-R   CW-7502 4.10> type 5 removable SCSI 2
cd0: CD-ROM 
cd0: 10.0 MB/s (100 ns, offset 8)

-- 
mvh/ Joakim



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