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Subject2.1.9[67] SCSI problem, maybe aic7xxx module
When booting  the 2.1.96 or 2.1.97 kernel  the screen is filled with the
following message:

(scsi0:0:6:-1) Unexpected bus free, LASTPHASE=0xa0, SEQADDR=0xa5

This happens after my Adaptec 2940UW has been initialized and the SCSI
bus has been scaned for devices.
I never had any problems like that, until kernel 2.1.96.
The 2.1.95 works fine with the same hardware and the same compile and
library platform.
Below some info about my system (analyzed with the 2.1.95 kernel)

Help would be appreciated!

Kind regards

Thomas


cat /proc/pci
PCI devices found:
Bus 0, device 0, function 0:
Host bridge: Intel 82439TX (rev 1).
Medium devsel. Master Capable. Latency=32.
Bus 0, device 7, function 0:
ISA bridge: Intel 82371AB PIIX4 ISA (rev 1).
Medium devsel. Fast back-to-back capable. Master Capable. No bursts.
Bus 0, device 7, function 1:
IDE interface: Intel 82371AB PIIX4 IDE (rev 1).
Medium devsel. Fast back-to-back capable. Master Capable. Latency=32.
I/O at 0xf000 [0xf001].
Bus 0, device 7, function 2:
USB Controller: Intel 82371AB PIIX4 USB (rev 1).
Medium devsel. Fast back-to-back capable. IRQ a. Master Capable. Latency=32.
I/O at 0x6700 [0x6701].
Bus 0, device 7, function 3:
Bridge: Intel 82371AB PIIX4 ACPI (rev 1).
Medium devsel. Fast back-to-back capable.
Bus 0, device 8, function 0:
SCSI storage controller: Adaptec AIC-7881U (rev 0).
Medium devsel. Fast back-to-back capable. IRQ 9. Master Capable. Latency=32. Min Gnt=8.Max Lat=8.
I/O at 0x6300 [0x6301].
Non-prefetchable 32 bit memory at 0xe4000000 [0xe4000000].
Bus 0, device 9, function 0:
VGA compatible controller: S3 Inc. Vision 968 (rev 0).
Medium devsel. IRQ c.
Non-prefetchable 32 bit memory at 0xe0000000 [0xe0000000].

A part of my /var/log/messages file:

Apr 20 19:23:08 marvin kernel: aic7xxx: <Adaptec AHA-294X Ultra SCSI host adapter> at PCI 8
Apr 20 19:23:08 marvin kernel: aic7xxx: BIOS enabled, IO Port 0x6300, IO Mem 0xe4000000, IRQ 9, Revision B
Apr 20 19:23:08 marvin kernel: aic7xxx: Wide Channel, SCSI ID 7, 16/255 SCBs, QFull 16, QMask 0x1f
Apr 20 19:23:08 marvin kernel: scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 4.1/3.2
Apr 20 19:23:08 marvin kernel: scsi : 1 host.
Apr 20 19:23:08 marvin kernel: scsi0: Scanning channel A for devices.
Apr 20 19:23:08 marvin kernel: Vendor: IBM Model: DCAS-32160W Rev: S65A
Apr 20 19:23:08 marvin kernel: Type: Direct-Access ANSI SCSI revision: 02
Apr 20 19:23:08 marvin kernel: Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
Apr 20 19:23:08 marvin kernel: Vendor: IBM Model: DCAS-34330W Rev: S65A
Apr 20 19:23:08 marvin kernel: Type: Direct-Access ANSI SCSI revision: 02
Apr 20 19:23:08 marvin kernel: Detected scsi disk sdb at scsi0, channel 0, id 1, lun 0
Apr 20 19:23:08 marvin kernel: Vendor: IBM Model: DCAS-34330W Rev: S65A
Apr 20 19:23:08 marvin kernel: Type: Direct-Access ANSI SCSI revision: 02
Apr 20 19:23:08 marvin kernel: Detected scsi disk sdc at scsi0, channel 0, id 2, lun 0
Apr 20 19:23:08 marvin kernel: scsi0: Target 3, channel A, refusing WIDE negotiation; using 8 bit transfers.
Apr 20 19:23:08 marvin kernel: Vendor: QUANTUM Model: FIREBALL_TM3200S Rev: 300N
Apr 20 19:23:08 marvin kernel: Type: Direct-Access ANSI SCSI revision: 02
Apr 20 19:23:08 marvin kernel: Detected scsi disk sdd at scsi0, channel 0, id 3, lun 0
Apr 20 19:23:08 marvin kernel: Vendor: HP Model: C3325A Rev: 4299
Apr 20 19:23:08 marvin kernel: Type: Direct-Access ANSI SCSI revision: 02
Apr 20 19:23:08 marvin kernel: Detected scsi disk sde at scsi0, channel 0, id 4, lun 0
Apr 20 19:23:08 marvin kernel: scsi0: Target 6, channel A, refusing WIDE negotiation; using 8 bit transfers.
Apr 20 19:23:08 marvin kernel: Vendor: SONY Model: CD-ROM CDU-415 Rev: 1.1g
Apr 20 19:23:08 marvin kernel: Type: CD-ROM ANSI SCSI revision: 02
Apr 20 19:23:08 marvin kernel: scsi : detected 5 SCSI disks total.

software platform

gcc version 2.8.1
ldd (GNU libc) 2.0.5
binutils-2.9.0.2

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