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Hi
<p>This sounds suspiciously like the problem that I have been having with
3940s. I believe that the current aic drivers are broken for 3940s
- As soon as I try to use 2 hds at the same time (either on the same
or different channels) my machine hangs. I am currently using only one
drive on the 3940 and the others on a 2940 which is fine.
<p>Hoping for someone to address this problem soon.
<p>Nick
<br>----
<p>Jeffrey Veiss wrote:
<blockquote TYPE=CITE>Calling all SCSI experts:
<p>I have a bit of a challenge with an Adaptec 3940UW SCSI card.
To start off,
<br>here's the specs:
<p> Tyan Trinity 1590 Motherboard v1.16
<br> AMD K6 233MHz CPU
<br> 128M SDRAM
<br> Windows 98 loaded on a Western Digital 4G EIDE drive (4
part VFAT)
<br> Redhat 6 loaded on Seagate Cheetah (3 part VFAT, 4 part
ext2, 1 part swap)
<br> See below for more info
<p>The Problem:
<p> I was happily computing along, backing up my laptop to
the /home partition
<br> on the above machine (hostname = fuzzy) using rdist when
fuzzy restarted.
<br> This happened three times before I decided to do something
else and work
<br> on why later. The next day (I don't remember what
i was doing), fuzzy
<br> was rebooting into linux and needed to fsck the / partition
(sda5). As
<br> it was trying to fsck, it crashed/rebooted with no errors.
Every reboot
<br> has the same result. The only major change to the
system was a
<br> motherboard BIOS update.
<br>
<p>Things I tried:
<p> o Booting from Slackware 3.5 SCSI boot/rescue root floppies
and running
<br> fsck on sda5.
<p> o Booting from Slackware 4.0 aic7xxx boot/rescue root floppies
and running
<br> fsck on sda5.
<p> o When booting/rooting from floppy, I can mount sda5 but
if I poke
<br> around too much (cd's & ls's), it eventually
crashes/reboots.
<p> o I can fsck the other ext2 sda* partitions, but poking
around too much
<br> eventually crashes/reboots (tar'ing each partition
causes a crash).
<p> o Tar'ing a CD from either CD-ROM drive doesn't cause a
crash.
<p> o Setting Bus A termination to Disabled and Bus B termination
to Enabled.
<p> o I booted with aic7xxx=panic_on_abort,verbose and it still
rebooted.
<p> o I downgraded the motherboard BIOS to the original version
and it still
<br> crashes.
<p> o Windows 98 (scarily enough) works fine. I did a
thorough scandisk on
<br> all EIDE & SCSI partitions with no problem.
Both CD-ROM's work fine.
<p> o The cheetah was repartitioned and installed with Redhat
6 a few weeks ago
<br> and except when I had to turn off wide negotiation
on the CD-ROM and Zip
<br> drives, has been working fine.
<p>At this point, I'm at a loss as to what to try next. Possibilities
include
<br>hardware failure on either the SCSI Card or Seagate Cheetah or a SCSI
BIOS
<br>mis-configuration, but then why does Windows 98 work? (No really,
why
<br>does Windows 98 work? :-) )
<p>Any assistance would be gratefully appreciated!
<p>Please contact me if there are any further questions via internet mail
at
<br>jsv@sirveiss.com. Thank you very much!
<p>Jeffrey Veiss (jsv@NOSPAMsirveiss.com)
13 Lynn Court
<br>Network Engineer/System Administrator
Somerville, NJ 08876
<br>Sir Veiss, Inc.
(908) 431-1318
<p>----------------------------------------
<br>Here's some other useful info:
<p>Significant IRQ's:
<p> 3 COM2
<br> 4 COM1
<br> 5 IDE Creative Labs AWE32
<br> 7 PCI Adaptec AHA-3940 Ultra/Ultra Wide v1.25
<br>10 PCI Adaptec AHA-3940 Ultra/Ultra Wide v1.25
<br>11 PCI 3Com Fast Ethernet
<br>14 Enhanced IDE Bus
<br>15 USB
<br>NA PCI Creative Labs Voodoo 2
<br>NA AGP ATI All-In-Wonder Pro 8M
<p>(Parallel and 2nd IDE ports turned on in the CMOS)
<p> - - - - - - - - - - - - - - - - - - - - -
<p>Adaptec AHA-3940UW BIOS Settings:
<p>A:
<br> ID 0: Seagate Cheetah ST19101W Ultra 9G Internal
(Terminated)
<br> ID 5: External Iomega Zip Drive (Terminated)
<br> SCSI Bus Interface Definitions
<br> Host Adapter SCSI ID...............
7
<br> SCSI Parity Checking...............
Enabled
<br> Host Adapter SCSI Termination......
Automatic
<br> Additional Options
<br> Boot Device Options
<br> Boot Channel....................
B First
<br> Boot Target ID..................
0
<br> Boot LUN Number.................
0
<br> SCSI Device Configuration
<br> Initiate Sync Negotation........
yes to all id's
<br> Maximum Sync Xfer
Rate.......... 40 for all except 20 for id 5
<br> Enable Disconnection............
yes for all id's
<br> Initiate Wide Negotiation.......
no for all id's except 0 & 7
<br> Send Start Unit Command.........
no for all id's
<br> Include in BIOS Scan............
yes for all id's
<br> Advanced Configuration Options
<br> Reset SCSI Bus at
IC Initalization....... Enabled
<br> Channel A BIOS...........................
Enabled
<br> Support Removable
Disks as Fixed Disks... Boot Only
<br> Extended Translation
for DOS Drives >1G.. Enabled
<br> Channel A Display
<Ctrl-A> Msg........... Enabled
<br> Multiple LUN Support.....................
Disabled
<br> BIOS Support for Bootable
CD-ROM......... Disabled
<br> BIOS Support for Int13
Extensions........ Enabled
<br> Support for Ultra
SCSI Speed............. Enabled
<p>B:
<br> ID 2: Plextor 8plex CD-ROM Drive
<br> ID 4: Plextor 4/12 CD Writer (Terminated)
<br> SCSI Bus Interface Definitions
<br> Host Adapter SCSI ID...............
7
<br> SCSI Parity Checking...............
Enabled
<br> Host Adapter SCSI Termination......
Automatic
<br> Additional Options
<br> Boot Device Options
<br> Boot Channel....................
B First
<br> Boot Target ID..................
0
<br> Boot LUN Number.................
0
<br> SCSI Device Configuration
<br> Initiate Sync Negotation........
yes to all id's
<br> Maximum Sync Xfer
Rate.......... 20 for all id's
<br> Enable Disconnection............
yes for all id's
<br> Initiate Wide Negotiation.......
no for all id's
<br> Send Start Unit Command.........
no for all id's
<br> Include in BIOS Scan............
yes for all id's
<br> Advanced Configuration Options
<br> Reset SCSI Bus at
IC Initalization....... Enabled
<br> Channel A BIOS...........................
Enabled
<br> Support Removable
Disks as Fixed Disks... Boot Only
<br> Extended Translation
for DOS Drives >1G.. Enabled
<br> Channel A Display
<Ctrl-A> Msg........... Enabled
<br> Multiple LUN Support.....................
Disabled
<br> BIOS Support for Bootable
CD-ROM......... Enabled
<br> BIOS Support for Int13
Extensions........ Enabled
<br> Support for Ultra
SCSI Speed............. Disabled
<p> - - - - - - - - - - - - - - - - - - - - -
<p>dmesg output (whilst booting with Slackware 4.0 aic7xxx boot disk):
<p>Linux version 2.2.6 (root@zap) (gcc version 2.7.2.3) #14 Tue Apr 27
15:06:58 CDT 1999
<br>Detected 233865908 Hz processor.
<br>Console: colour VGA+ 80x25
<br>Calibrating delay loop... 466.94 BogoMIPS
<br>Memory: 127752k/131072k available (1280k kernel code, 408k reserved,
1576k data, 56k init)
<br>VFS: Diskquotas version dquot_6.4.0 initialized
<br>CPU: AMD AMD-K6tm w/ multimedia extensions stepping 02
<br>Checking 386/387 coupling... OK, FPU using exceptoin 16 error reporting.
<br>Checking 'hlt' instruction... OK.
<br>POSIX conformance testing by UNIFIX
<br>PCI: PCI BIOS revision 2.10 entry at 0xfb4d0
<br>PCI: Using configuration type 1
<br>PCI: Probing PCI hardware
<br>PCI: 00:38 [1106/0586]: Work around ISA DMA hangs (00)
<br>Activating ISA DMA hang workarounds.
<br>Linux NET 4.0 for Linux 2.2
<br>Based upon Swansea University Computer Society NET3.039
<br>NET4: Unix domain sockets 1.0 for Linux NET4.0.
<br>NET4: Linux TCP/IP 1.0 for NET4.0
<br>IP Protocols: ICMP, UDP, TCP, IGMP
<br>Initializing RT netlink socket
<br>Starting kswapd v 1.5
<br>Detected PS/2 Mouse Port.
<br>Serial driver version 4.27 with HUB-6 MANY_PORTS MULTIPORT SHARE_IRQ
enabled
<br>ttyS00 at 0x03f8 (irq = 4) is a 16550A
<br>ttyS01 at 0x02f8 (irq = 3) is a 16550A
<br>Real Time Clock Driver v1.09
<br>RAM disk driver initialized: 16 RAM disks of 49152K size
<br>loop: registered device at major 7
<br>VP_IDE: IDE controller on PCI bus 00 dev 39
<br>VP_IDE: not 100% native mode: will probe irqs later
<br> ide0: BM-DMA at 0xe400-0xe407, BIOS settings: hda:DMA,
hdb:DMA
<br>hda: WDC AC24300L, ATA DISK drive
<br>ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
<br>hda: WDC AC24300L, 4112MB w/256kB Cache, CHS=524/255/63, UDMA
<br>Floppy drive(s): fd0 is 1.44M
<br>FDC 0 is a post-1991 82077
<br>md driver 0.36.6 MAX_MD_DEV=4, MAX_REAL=8
<br>linear personality registered
<br>raid0 personality registered
<br>(scsi0) <Adaptec AHA-394X Ultra SCSI host adapter> found at PCI
4/0
<br>(scsi0) Wide Channel A, SCSI ID=7, 16/255 SCBs
<br>(scsi0) Warning - detected auto-termination
<br>(scsi0) Please verify driver detected settings are correct.
<br>(scsi0) If not, then please properly set the device termination
<br>(scsi0) in the Adaptec SCSI BIOS by hitting CTRL-A when prompted
<br>(scsi0) during machine bootup.
<br>(scsi0) Cables present (Int-50 NO, Int-68 YES, Ext-68 NO)
<br>(scsi0) Downloading sequencer code... 419 instructions downloaded
<br>(scsi1) <Adaptec AHA-394X Ultra SCSI host adapter> found at PCI
5/0
<br>(scsi1) Wide Channel B, SCSI ID=7, 16/255 SCBs
<br>(scsi1) Warning - detected auto-termination
<br>(scsi1) Please verify driver detected settings are correct.
<br>(scsi1) If not, then please properly set the device termination
<br>(scsi1) in the Adaptec SCSI BIOS by hitting CTRL-A when prompted
<br>(scsi1) during machine bootup.
<br>(scsi1) Cables present (Int-50 NO, Int-68 YES, Ext-68 NO)
<br>(scsi1) Downloading sequencer code... 419 instructions downloaded
<br>scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 5.1.10/3.2.4
<br> <Adaptec AHA-394X Ultra SCSI
host adapter>
<br>scsi1 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 5.1.10/3.2.4
<br> <Adaptec AHA-394X Ultra SCSI
host adapter>
<br>scsi : 2 hosts.
<br> Vendor: SEAGATE Model: ST19101W
Rev: 0014
<br> Type: Direct-Access
ANSI SCSI revision: 02
<br>Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
<br> Vendor: IOMEGA Model: ZIP 100
Rev: D.09
<br> Type: Direct-Access
ANSI SCSI revision: 02
<br>Detected scsi removable disk sdb at scsi0, channel 0, id 5, lun 0
<br> Vendor: PLEXTOR Model: CD-ROM PX-8XCS
Rev: 1.03
<br> Type: CD-ROM
ANSI SCSI revision: 02
<br>Detected scsi CD-ROM sr0 at scsi1, channel 0, id 2, lun 0
<br> Vendor: PLEXTOR Model: CD-R PX-R412C
Rev: 1.06
<br> Type: CD-ROM
ANSI SCSI revision: 02
<br>Detected scsi CD-ROM sr1 at scsi1, channel 0, id 4, lun 0
<br>scsi : detected 2 SCSI cdroms 2 SCSI disks total.
<br>(scsi1:0:2:0) Synchronous at 10.0 Mbyte/sec, offset 15.
<br>Uniform CDROM driver Revision: 2.54
<br>(scsi1:0:4:0) Synchronous at 10.0 Mbyte/sec, offset 8.
<br>sr1: scsi3-mmc drive: 12x/12x writer cd/rw xa/form2 cdda caddy
<br>(scsi0:0:0:0) Synchronous at 40.0 Mbyte/sec, offset 8.
<br>SCSI device sda: hdwr sector= 512 bytes. Sectors= 17783240 [8683 MB]
[8.7 GB]
<br>SCSI device sdb: hdwr sector= 512 bytes. Sectors= 196608 [96 MB] [0.1
GB]
<br>sdb: Write Protect is off
<br>Partition check:
<br> sda: sda1 < sda5 sda6 sda7 sda8 sda9 sda10 sda11 sda12 >
<br> sdb: sdb4
<br> hda: hda1 hda2 < hda5 hda6 hda7 >
<br>VFS: Insert root floppy disk to be loaded into RAM disk and press ENTER
<br>VFS: Disk change detected on device fd(2,0)
<br>RAMDISK: Compressed image found at block 0
<br>VFS: Mounted root (ext2 filesystem).
<br>Freeing unused kernel memory: 56k freed
<br>UMSDOS dentry-pre 0.84 (compatibility level 0.4, fast msdos)
<p>To Unsubscribe: send mail to majordomo@FreeBSD.org
<br>with "unsubscribe aic7xxx" in the body of the message</blockquote>
<pre>--
Nick Taylor <A HREF="mailto://nt@dataskill.co.uk">mailto://nt@dataskill.co.uk</A> Dataskill, London, England
<A HREF="mailto://webmaster@reflexology.org">mailto://webmaster@reflexology.org</A>
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