Re: SCSI Bus Parity errors with all Kernels after 2.4.26

["Robert K. Nelson" <rnelson@airflowsciences.com>]

 >> I have a machine conf. which runs fine under a variety of older
 >> kernels and fails under a variety of newer ones. I was hoping someone
 >> could direct me to a person who would like to look further into this.
...

 >What are the exact error messages? CC linux-scsi@xxxxxxxxxxxxxxx

Under SuSE 9.1 the output during module loading is as follows:
-------------------------------------------------------
SCSI subsystem initialized
PCI: Found IRQ 5 for device 0000:00:0a.0
sym0: <875> rev 0x4 at pci 0000:00:0a.0 irq 5
sym0: Symbios NVRAM, ID 7, Fast-20, SE, parity checking
sym0: open drain IRQ line driver, using on-chip SRAM
sym0: using LOAD/STORE-based firmware.
sym0: SCSI BUS has been reset.
scsi0 : sym-2.1.18i
   Vendor: IOMEGA    Model: ZIP 100           Rev: J.03
   Type:   Direct-Access                      ANSI SCSI revision: 02
sym0:5:0:phase change 6-7 6@3738cf84 resid=4.
Attached scsi removable disk sda at scsi0, channel 0, id 5, lin0
Attached scsi generic sg0 at scsi0, channel 0, id 5, lun 0,  type 0
   Vendor: PIONEER   Model: CD-ROM DR-U065    Rev: 1.05
   Type:  CD-ROM                              ANSI SCSI revision: 02
sym0:6: FAST-20 SCSI 19.2 MB/s ST (52.0 ns, offset 16)
Uniform CD-ROM driver Revision: 3.20
Attached scsi generic sg1 at scsi0, channel 0, id 6, lun 0,  type 5
PCI: Found IRQ 11 for device 0000:00:0c.0
sym1: <895> rev 0x1 at pci 0000:00:0c.0 irq 11
sym1: Symbios NVRAM, ID 7, Fast-40, LVD, parity checking
sym1: open drain IRQ line driver, using on-chip SRAM
sym1: using LOAD/STORE-based firmware.
sym1: SCSI BUS has been reset.
scsi1 : sym-2.1.18i
   Vendor: QUANTUM   Model: VIKING II 4.5WLS  Rev: 4110
   Type:   Direct-Access                      ANSI SCSI revision: 02
sym1:0:0: tagged command queuind enabled, command queue depth 16.
sym1:0: FAST-40 WIDE SCSI 80.0 MB/s ST (25.0 ns, offset 31)
SCSI device sdb: 8910423 512-byte hdwr sectors (4562 MB)
SCSI device sdb: drive cache: write back
  sdb: sdb1 sdb2
Attached scsi disk sdb at scsi1, channel 0, id 0, lun 0
Attached scsi generic sg2 at scsi1, channel 0, id 0, lun 0,  type 0
   Vendor: IBM       Model: DNES-309170W      Rev: SAH0
   Type:   Direct-Access                      ANSI SCSI revision: 03
sym1:6:0: tagged command queuing enabled, command queue depth 16.
sym1:6: FAST-40 WIDE SCSI 80.0 MB/s ST (25.0 ns, offset 30)
SCSI: device sdc: 17916240 512-byte hdwr sectors (9173 MB)
SCSI device sdc: drive cache: write back
  sdc: sdc1 sdc2
Attached scsi disk sdc at scsi1, channel 0, id 6, lun 0
Attached scsi generic sg3 at scsi1, channel 0, id 6, lun 0,  type 0
sym0: SCSI parity error detected: SCR1=1 DBC=50000000 SBCL=0
sym0:15: ERROR (a0:0) (8-0-0) (0/5/0) @ (mem cd800020:cd800020).
sym0: regdump: da 00 00 05 47 00 0f 0e 00 08 00 00 80 00 0f 02 ff ff ff 
00 02 ff ff ff.
sym0: PCI STATUS = 0x20000
sym0: SCSI BUS reset detected.
sym0: SCSI BUS has been reset.
sym1: SCSI parity error detected: SCR1=1 DBC=50000000 SBCL=0
sym1: SCSI phase error fixup: CCB already dequeued.
sym1:15: ERROR (81:0) (8-0-0) (0/7/0) @ (scripta 48:a9100786).
sym1: script cmd = f31c0004
sym1: regdump: da 00 00 07 47 00 0f 0a 00 08 86 00 80 00 0f 02 28 71 01 
37 02 ff ff ff.
sym1: SCSI BUS reset detected.
sym1: SCSI BUS has been reset.
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Please cc: rnelson@airflwosciences.com since I do not subscribe.  Note 
that I will be out of town for the next 5 days.

Bob Nelson