problems with single speed CD ROMs and Addaptec 2842A

problems with single speed CD ROMs and Addaptec 2842A

Post by Christof Jun » Wed, 08 Nov 1995 04:00:00



Hello,

I have tried to install the aha2842a based of a Linux Kernel 1.3.37.
With my SCSI harddisk all thinks worket ok. But if I tried to mount
a CD ROM, the SCSI bus hang. I don't have this problems with my aha1542
controler.
I have tried to set the Sync tranfer for the cdrom rate to 5 MB, setting
J5 on/off at the controler an setting fifo.
The CD ROM is a old APPLE single speed CD-150. It is conectet to the
internal SCSI. Very slow but ok for archive Cd's :-)
The aha2842a version is REV D, Bios form 1993
Hardware: VLB Bus, 486 DX/4, 33 Mhz Bustackt.

please help             - chris

/proc/scsi:
Adaptec AIC7xxx driver version: 2.5/2.2/2.1

Compile Options:
  AIC7XXX_RESET_DELAY    : 15
  AIC7XXX_TWIN_SUPPORT   : Enabled
  AIC7XXX_TAGGED_QUEUEING: Disabled
  AIC7XXX_SHARE_IRQS     : Enabled
  AIC7XXX_PROC_STATS     : Disabled
  AIC7XXX_POLL           : Disabled

Adapter Configuration:
          SCSI Adapter: 284x
              Host Bus: Single
               Base IO: 0x1000
                   IRQ: 11
                   SCB: 2 (4)
            Interrupts: 8977 (Level Sensitive)
         Serial EEPROM: False
         Pause/Unpause: 0x0e/0x02
  Extended Translation: Disabled
        SCSI Bus Reset: Enabled

mount -t -r iso9660 /dev/scd0 /cdrom
aic7xxx_isr: referenced scb not valid during seqint 0x81 scb(1) state(0), cmd(0)
aic7xxx warning: no command for scb 1 (cmdcmplt)
QOUTCNT=1, SCBSTATE = 0x0, CMD = 0x0, pos=0
scsi: aborting command due to timeout: pid 2848, scsi0, channal 0, id1, lun0 UNKNOWN 00 00 00 00 00 00 00 0C 40
scsi: aborting command due to timeout: pid 2848, scsi0, channal 0, id1, lun0 UNKNOWN 00 00 00 00 00 00 00 0C 40
scsi host 0 abort times out - reseting
Unable to reset scsi host 0 - probably a SCSI bus hang

Nov  5 06:52:59 cj syslogd: restart
Nov  5 06:53:01 cj kernel: Kernel logging (proc) started.
Nov  5 06:53:01 cj kernel: Console: 16 point font, 400 scans
Nov  5 06:53:01 cj kernel: Console: colour VGA+ 80x25, 1 virtual console (max 63)
Nov  5 06:53:01 cj kernel: Calibrating delay loop.. ok - 49.87 BogoMIPS
Nov  5 06:53:01 cj kernel: Memory: 19088k/20480k available (704k kernel code, 384k reserved, 304k data)
Nov  5 06:53:01 cj kernel: This processor honours the WP bit even when in supervisor mode. Good.
Nov  5 06:53:01 cj kernel: Swansea University Computer Society NET3.032 for Linux 1.3.35
Nov  5 06:53:01 cj kernel: NET3: Unix domain sockets 0.10 BETA for Linux NET3.031.
Nov  5 06:53:01 cj kernel: Swansea University Computer Society TCP/IP for NET3.032
Nov  5 06:53:01 cj kernel: IP Protocols: ICMP, UDP, TCP
Nov  5 06:53:01 cj kernel: Swansea University Computer Society IPX 0.33 for NET3.032
Nov  5 06:53:01 cj kernel: IPX Portions Copyright (c) 1995 Caldera, Inc.
Nov  5 06:53:01 cj kernel: Checking 386/387 coupling... Ok, fpu using exception 16 error reporting.
Nov  5 06:53:01 cj kernel: Checking 'hlt' instruction... Ok.

Nov  5 06:53:01 cj kernel: Serial driver version 4.11 with no serial options enabled
Nov  5 06:53:01 cj kernel: tty00 at 0x03f8 (irq = 4) is a 16450
Nov  5 06:53:01 cj kernel: tty01 at 0x02f8 (irq = 3) is a 16450
Nov  5 06:53:01 cj kernel: lp1 at 0x0378, (polling)
Nov  5 06:53:01 cj kernel: lp2 at 0x0278, (polling)
Nov  5 06:53:01 cj kernel: Sound initialization started
Nov  5 06:53:01 cj kernel: snd2 <SoundBlaster 2.1> at 0x220 irq 7 drq 1
Nov  5 06:53:01 cj kernel: snd1 <Yamaha 2-OP FM> at 0x388 irq 0 drq 0
Nov  5 06:53:01 cj kernel: Sound initialization complete
Nov  5 06:53:01 cj kernel: Floppy drive(s): fd0 is 1.44M
Nov  5 06:53:01 cj kernel: FDC 0 is a post-1991 82077
Nov  5 06:53:01 cj kernel: aha284x: extended translation disabled
Nov  5 06:53:01 cj kernel: aic7770: Rev E and subsequent; using 4 SCB's
Nov  5 06:53:01 cj kernel: aic7xxx: Using Level Sensitive Interrupts
Nov  5 06:53:01 cj kernel: AIC7770 AT VLB SLOT 1:
Nov  5 06:53:01 cj kernel:     irq 11
Nov  5 06:53:01 cj kernel:     bus release time 40 bclks
Nov  5 06:53:01 cj kernel:     data fifo threshold 100
Nov  5 06:53:01 cj kernel:     SCSI CHANNEL A:
Nov  5 06:53:01 cj kernel:         scsi id 7
Nov  5 06:53:01 cj kernel:         scsi selection timeout 256 ms
Nov  5 06:53:01 cj kernel:         scsi bus reset at power-on enabled
Nov  5 06:53:01 cj kernel:         scsi bus parity enabled
Nov  5 06:53:01 cj kernel: aic7xxx: Downloading sequencer code..done.
Nov  5 06:53:01 cj kernel: Resetting the SCSI bus...
Nov  5 06:53:01 cj kernel: scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 2.5/2.2/2.1
Nov  5 06:53:01 cj kernel: scsi : 1 host.
Nov  5 06:53:01 cj kernel: aic7xxx: Scanning channel A for devices.
Nov  5 06:53:01 cj kernel: aic7xxx: target 0, channel A, now synchronous at 10.0Mb/s, offset = 0xf
Nov  5 06:53:01 cj kernel:   Vendor: FUJITSU   Model: M2694ES-512       Rev: 811F
Nov  5 06:53:01 cj kernel:   Type:   Direct-Access                      ANSI SCSI revision: 02
Nov  5 06:53:01 cj kernel: Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
Nov  5 06:53:01 cj kernel:   Vendor: SONY      Model: CD-ROM CDU-8002   Rev: 1.8g
Nov  5 06:53:01 cj kernel:   Type:   CD-ROM                             ANSI SCSI revision: 01 CCS
Nov  5 06:53:01 cj kernel: Detected scsi CD-ROM sr0 at scsi0, channel 0, id 1, lun 0
Nov  5 06:53:01 cj kernel:   Vendor: SONY      Model: CD-ROM CDU-8002   Rev: 1.8g
Nov  5 06:53:01 cj kernel:   Type:   CD-ROM                             ANSI SCSI revision: 01 CCS
Nov  5 06:53:01 cj kernel: Detected scsi CD-ROM sr1 at scsi0, channel 0, id 3, lun 0
Nov  5 06:53:01 cj kernel: scsi : detected 2 SCSI cdroms 1 SCSI disk total.
Nov  5 06:53:01 cj kernel: SCSI Hardware sector size is 512 bytes on device sda
Nov  5 06:53:01 cj kernel: NE*000 ethercard probe at 0x340: 00 00 01 00 02 85
Nov  5 06:53:01 cj kernel: eth0: NE2000 found at 0x340, using IRQ 10.

Nov  5 06:53:01 cj kernel: Partition check:
Nov  5 06:53:01 cj kernel:   sda: sda1 sda2 sda3 sda4 < sda5 sda6 sda7 sda8 >
Nov  5 06:53:01 cj kernel: VFS: Mounted root (ext2 filesystem) readonly.
Nov  5 06:53:01 cj kernel: Adding Swap: 20476k swap-space

--
Christof Junge                  | Tel.: +49 30 8647290  [Voice]
Holsteinische Str. 17           |       +49 30 86472334 [Fax]
D 10717 Berlin (Wilmersdorf)    |
Germany                         |

 
 
 

1. Those old NEC single-speed CD-ROMs...

I know that this has already been hashed, re-hashed, diced, filleted, minced,
cooked, boiled, and served with garlic bread, rice, salad, and beans, but I'm
going to ask *again*...

There was a multimedia kit that NEC was selling a while ago that had an
external SCSI single-speed CD-ROM that was controlled by a Trantor T130B SCSI
card (if I remember correctly).  So I guess I actually have two questions:

        1)  What is the driver needed (if any) to specifically support that
CD-ROM, beyond the driver for the SCSI controller.

        2)  Am I going to need to do anything besides connect the cable if I
already have an Adaptec 1520 SCSI controller with support already compiled into
the kernel for both hard disks and CD-ROMs (I'm already using a bunch of SCSI
hard drives), and also ISO9660 file system support?  Anything I'm forgetting?

Thanks for any help I get, and please send E-mail.  I don't get a chance to
read the news very often.  Thanks again!

                                                        --S.S.

--

--
A thousand pictures is worth ten lines of code.

#include <std.dsclmr.h>

main()
{
        while ( noOfIdiots >= 1 )
                {
                        getInput();
                        routeInputToNullDevice();
                }
        rejoice();

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