>
> If you look at the dumps the requirements are
>
> 2.2
> Symbios controller
> Right IBM disk (and the cases so far have a pair of adjacent firmware
> revisions)
>
> 2.0 defaults to a lower bus speed and to a smaller command queue. The obvious
> thing for these two victims to do is therefore to try 5MHz and the smaller
> queue.
>
I have now identified a hard error which I can reproduce in about 1
minute.
May 6 16:19:58 leaf kernel: sym53c860-0-<4,0>: phase change 2-3
6@07feba45 resid=2.
This occurs at the same place each time I try to copy from the FAT32
partition to ide tape.
I tried to boot with safe:y and got:
Linux version 2.2.7 (root@leaf) (gcc version 2.7.2.3) #5 Thu May 6 16:33:22 GMT+0100 1999
sym53c8xx: setup=disc:n,specf:0,ultra:0,tags:0,sync:255,burst:255,wide:n,diff:1,revprob:n,buschk:0x1
sym53c8xx: setup=mpar:n,spar:y,fsn=n,verb:2,debug:0x0,led:n,settle:10,irqm:0x1,nvram:0x1,pcifix:0x0
sym53c8xx: at PCI bus 0, device 9, function 0
sym53c8xx: setting PCI_COMMAND_PARITY...(fix-up)
sym53c8xx: 53c860 detected with Symbios NVRAM
sym53c860-0: rev=0x02, base=0xdf000000, io_port=0xb000, irq=12
sym53c860-0: using memory mapped IO
sym53c860-0: Symbios format NVRAM, ID 7, Fast-10, Parity Checking
sym53c860-0: initial SCNTL3/DMODE/DCNTL/CTEST3/4/5 = (hex) 05/ce/a0/01/00/00
sym53c860-0: final SCNTL3/DMODE/DCNTL/CTEST3/4/5 = (hex) 05/c0/00/00/00/00
sym53c860-0: resetting, command processing suspended for 10 seconds
sym53c860-0: restart (scsi reset).
sym53c860-0: waiting 10 seconds for scsi devices to settle...
scsi0 : sym53c8xx - version 1.3c
scsi : 1 host.
sym53c860-0: command processing resumed
scsi : aborting command due to timeout : pid 0, scsi0, channel 0, id 0, lun 0 Test Unit Ready 00 00 00 00 00
sym53c8xx_abort: pid=0 serial_number=1 serial_number_at_timeout=1
sym53c860-0: abort ccb=c7fec000 (cancel)
Vendor: IBM Model: DDRS-34560 Rev: S92A
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 4, lun 0
scsi : detected 1 SCSI disk total.
sym53c860-0-<4,*>: FAST-10 SCSI 10.0 MB/s (100 ns, offset 8)
SCSI device sda: hdwr sector= 512 bytes. Sectors= 8925000 [4357 MB] [4.4 GB]
The error occured with this safe setup in almost the same place.
Have to break off now, but will continue test later.
-- Shaw Carruthers - shaw@shawc.demon.co.uk London SW14 7JW UK This is not a sig( with homage to Magritte).
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