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Date:      Tue, 28 Sep 1999 22:11:53 -0400 (EDT)
From:      "Alok K. Dhir" <adhir@forumone.com>
To:        vladimir-scsi@math.uic.edu
Cc:        freebsd-stable@freebsd.org
Subject:   Re: problems with adaptec 2940 cards on 3.3-STABLE
Message-ID:  <Pine.BSF.4.10.9909282207560.42723-100000@orion.forumone.com>
In-Reply-To: <19990929000308.19370.qmail@math.uic.edu>

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I'd suspect the external SCSI cable if disconnecting it (and presumably
enabling termination on the card) fixed the problem...  I wouldn't rule
out cables just because you have 2 machines with the same hardware...  
Could have been a bad run of cables from the same manuf., or just
el-cheapo cables...

On 29 Sep 1999 vladimir-scsi@math.uic.edu wrote:

> Dear STABLE users, 
> below is a copy of my message to comp.unix.bsd.freebsd.misc 
> about the problems with adaptec 2940 UW/U2W cards.     I would
> appreciate if anyone would have some ideas on what might be
> going wrong.   I have observed this problem on 2 machines with
> the same hardware, so termination and cables should not be causing
> that.
> 
> We have a Dell computer with the Phoenix bios and Adaptec 2940 UW
> card.  This computer worked fine until I tried to replace Adaptec
> 2940UW with 2940 U2W.  The card had internal scsi drive connected to
> the internal UW connector, and an external U2W LVD drive connected to
> the external U2W connector.  Both drives were terminated.  During the
> boot, I noticed the following error messages:
> 
> Sep 27 21:59:22 dottie /kernel: (da3:ahc0:0:6:0): WRITE(06). CDB: a 0 8 3f 4 0
> Sep 27 21:59:22 dottie /kernel: (da3:ahc0:0:6:0): ABORTED COMMAND asc:47,0
> Sep 27 21:59:22 dottie /kernel: (da3:ahc0:0:6:0): SCSI parity error field replaceable unit: 3
> 
> (scsi id 6 is the external drive).    I played with various settings of the adaptec bios to no avail.
> 
> First I thought that the card was bad.  But then I tried replacing it
> with 2940 UW Pro (same as 2940UW, but faster transfer rate), and got
> an error on boot saying "Someone reset channel A".  This message
> repeats indefinitely.
> 
> All problems go away if I leave only the internal device on the scsi chain.
> 
> Did anyone else have bad experience with these cards,   or do you think this 
> combination of adapted card + phoenix bios might be causing problems?  Thanks!
> 
> 	Vladimir
> 	vladimir@math.uic.edu
> 
> PS a part of the messages file is below (sorry for a long post).
> 
> Sep 27 21:59:20 dottie /kernel: Copyright (c) 1992-1999 FreeBSD Inc.
> Sep 27 21:59:20 dottie /kernel: Copyright (c) 1982, 1986, 1989, 1991, 1993
> Sep 27 21:59:20 dottie /kernel: The Regents of the University of California. All rights reserved.
> Sep 27 21:59:20 dottie /kernel: FreeBSD 3.3-STABLE #0: Thu Sep 16 21:02:26 CDT 1999
> Sep 27 21:59:20 dottie /kernel: vladimir@dottie.math.uic.edu:/usr/src/sys/compile/DOTTIE
> Sep 27 21:59:20 dottie /kernel: Timecounter "i8254"  frequency 1193182 Hz
> Sep 27 21:59:21 dottie /kernel: CPU: Pentium Pro (198.95-MHz 686-class CPU)
> Sep 27 21:59:21 dottie /kernel: Origin = "GenuineIntel"  Id = 0x619  Stepping = 9
> Sep 27 21:59:21 dottie /kernel: Features=0xfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV>
> Sep 27 21:59:21 dottie /kernel: real memory  = 201326592 (196608K bytes)
> Sep 27 21:59:21 dottie /kernel: avail memory = 191746048 (187252K bytes)
> Sep 27 21:59:21 dottie /kernel: Preloaded elf kernel "kernel" at 0xc037c000.
> Sep 27 21:59:21 dottie /kernel: Pentium Pro MTRR support enabled
> Sep 27 21:59:21 dottie /kernel: Probing for devices on PCI bus 0:
> Sep 27 21:59:21 dottie /kernel: Correcting Natoma config for non-SMP
> Sep 27 21:59:21 dottie /kernel: chip0: <Intel 82440FX (Natoma) PCI and memory controller> rev 0x02 on pci0.0.0
> Sep 27 21:59:21 dottie /kernel: chip1: <Intel 82371SB PCI to ISA bridge> rev 0x01 on pci0.13.0
> Sep 27 21:59:21 dottie /kernel: ide_pci0: <Intel PIIX3 Bus-master IDE controller> rev 0x00 on pci0.13.1
> Sep 27 21:59:21 dottie /kernel: chip2: <PCI to PCI bridge (vendor=1011 device=0021)> rev 0x02 on pci0.14.0
> Sep 27 21:59:21 dottie /kernel: vga0: <S3 Trio graphics accelerator> rev 0x54 int a irq 0 on pci0.16.0
> Sep 27 21:59:21 dottie /kernel: Probing for devices on PCI bus 1:
> Sep 27 21:59:21 dottie /kernel: xl0: <3Com 3c905-TX Fast Etherlink XL> rev 0x00 int a irq 11 on pci1.8.0
> Sep 27 21:59:21 dottie /kernel: xl0: Ethernet address: 00:c0:4f:bf:f6:a8
> Sep 27 21:59:21 dottie /kernel: xl0: autoneg not complete, no carrier (forcing half-duplex, 10Mbps)
> Sep 27 21:59:21 dottie /kernel: ahc0: <Adaptec 2940 Ultra2 SCSI adapter> rev 0x00 int a irq 11 on pci1.9.0
> Sep 27 21:59:21 dottie /kernel: ahc0: aic7890/91 Wide Channel A, SCSI Id=7, 16/255 SCBs
> Sep 27 21:59:21 dottie /kernel: xl1: <3Com 3c905B-TX Fast Etherlink XL> rev 0x30 int a irq 9 on pci1.10.0
> Sep 27 21:59:21 dottie /kernel: xl1: Ethernet address: 00:10:5a:e5:30:ee
> Sep 27 21:59:21 dottie /kernel: xl1: autoneg complete, link status good (half-duplex, 100Mbps)
> Sep 27 21:59:21 dottie /kernel: Probing for PnP devices:
> Sep 27 21:59:21 dottie /kernel: CSN 1 Vendor ID: CTL0054 [0x54008c0e] Serial 0x06b52735 Comp ID: @@@0000 [0x00000000]
> Sep 27 21:59:21 dottie /kernel: Probing for devices on the ISA bus:
> Sep 27 21:59:21 dottie /kernel: sc0 on isa
> Sep 27 21:59:21 dottie /kernel: sc0: VGA color <16 virtual consoles, flags=0x0>
> Sep 27 21:59:21 dottie /kernel: atkbdc0 at 0x60-0x6f on motherboard
> Sep 27 21:59:21 dottie /kernel: atkbd0 irq 1 on isa
> Sep 27 21:59:21 dottie /kernel: psm0 irq 12 on isa
> Sep 27 21:59:21 dottie /kernel: psm0: model Generic PS/2 mouse, device ID 0
> Sep 27 21:59:21 dottie /kernel: sio0 at 0x3f8-0x3ff irq 4 flags 0x10 on isa
> Sep 27 21:59:21 dottie /kernel: sio0: type 16550A
> Sep 27 21:59:21 dottie /kernel: sio1 at 0x2f8-0x2ff irq 3 on isa
> Sep 27 21:59:21 dottie /kernel: sio1: type 16550A
> Sep 27 21:59:21 dottie /kernel: fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
> Sep 27 21:59:21 dottie /kernel: fdc0: FIFO enabled, 8 bytes threshold
> Sep 27 21:59:21 dottie /kernel: fd0: 1.44MB 3.5in
> Sep 27 21:59:21 dottie /kernel: ppc0 at 0x378 irq 7 flags 0x40 on isa
> Sep 27 21:59:21 dottie /kernel: ppc0: Generic chipset (ECP/PS2/NIBBLE) in COMPATIBLE mode
> Sep 27 21:59:21 dottie /kernel: ppc0: FIFO with 16/16/8 bytes threshold
> Sep 27 21:59:21 dottie /kernel: lpt0: <generic printer> on ppbus 0
> Sep 27 21:59:21 dottie /kernel: lpt0: Interrupt-driven port
> Sep 27 21:59:21 dottie /kernel: ppi0: <generic parallel i/o> on ppbus 0
> Sep 27 21:59:21 dottie /kernel: plip0: <PLIP network interface> on ppbus 0
> Sep 27 21:59:21 dottie /kernel: ie0: unknown board_id: f000
> Sep 27 21:59:22 dottie /kernel: vga0 at 0x3b0-0x3df maddr 0xa0000 msize 131072 on isa
> Sep 27 21:59:22 dottie /kernel: npx0 on motherboard
> Sep 27 21:59:22 dottie /kernel: npx0: INT 16 interface
> Sep 27 21:59:22 dottie /kernel: Waiting 15 seconds for SCSI devices to settle
> Sep 27 21:59:22 dottie /kernel: sa0 at ahc0 bus 0 target 4 lun 0
> Sep 27 21:59:22 dottie /kernel: sa0: <HP C1533A 9503> Removable Sequential Access SCSI-2 device 
> Sep 27 21:59:22 dottie /kernel: sa0: 3.300MB/s transfers
> Sep 27 21:59:22 dottie /kernel: da3 at ahc0 bus 0 target 6 lun 0
> Sep 27 21:59:22 dottie /kernel: da3: <SEAGATE ST39175LW 0001> Fixed Direct Access SCSI-2 device 
> Sep 27 21:59:22 dottie /kernel: da3: 40.000MB/s transfers (20.000MHz, offset 15, 16bit), Tagged Queueing Enabled
> Sep 27 21:59:22 dottie /kernel: da3: 8683MB (17783240 512 byte sectors: 255H 63S/T 1106C)
> Sep 27 21:59:22 dottie /kernel: da0 at ahc0 bus 0 target 0 lun 0
> Sep 27 21:59:22 dottie /kernel: da0: <SEAGATE ST34371W 0484> Fixed Direct Access SCSI-2 device 
> Sep 27 21:59:22 dottie /kernel: da0: 3.300MB/s transfers, Tagged Queueing Enabled
> Sep 27 21:59:22 dottie /kernel: da0: 4095MB (8388314 512 byte sectors: 255H 63S/T 522C)
> Sep 27 21:59:22 dottie /kernel: da1 at ahc0 bus 0 target 3 lun 0
> Sep 27 21:59:22 dottie /kernel: da1: <SEAGATE ST15150N 0024> Fixed Direct Access SCSI-2 device 
> Sep 27 21:59:22 dottie /kernel: da1: 10.000MB/s transfers (10.000MHz, offset 15), Tagged Queueing Enabled
> Sep 27 21:59:22 dottie /kernel: da1: 4095MB (8388315 512 byte sectors: 255H 63S/T 522C)
> Sep 27 21:59:22 dottie /kernel: da2 at ahc0 bus 0 target 5 lun 0
> Sep 27 21:59:22 dottie /kernel: da2: <SEAGATE ST15230N 0252> Fixed Direct Access SCSI-2 device 
> Sep 27 21:59:22 dottie /kernel: da2: 10.000MB/s transfers (10.000MHz, offset 15), Tagged Queueing Enabled
> Sep 27 21:59:22 dottie /kernel: da2: 4095MB (8386733 512 byte sectors: 255H 63S/T 522C)
> Sep 27 21:59:22 dottie /kernel: changing root device to da0s1a
> Sep 27 21:59:22 dottie /kernel: (da3:ahc0:0:6:0): WRITE(06). CDB: a 0 8 3f 4 0 
> Sep 27 21:59:22 dottie /kernel: (da3:ahc0:0:6:0): ABORTED COMMAND asc:47,0
> Sep 27 21:59:22 dottie /kernel: (da3:ahc0:0:6:0): SCSI parity error field replaceable unit: 3
> Sep 27 21:59:24 dottie /kernel: (da3:ahc0:0:6:0): WRITE(06). CDB: a 0 8 3f 4 0 
> 
> 
> 
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