After applying 2.3.18ac7 patches, the sym53c8xx driver appears to have
been updated to a new version (1.5e). This driver checks the speed of
the PCI bus using the SCSI card and aborts with an error if it is
above 37Mhz.
This is what I see:
sym53c8xx: at PCI bus 0, device 10, function 0
sym53c8xx: setting PCI_COMMAND_PARITY...(fix-up)
sym53c8xx: 53c875 detected with Symbios NVRAM
sym53c875-0: rev=0x03, base=0xe3000000, io_port=0xb400, irq=12
sym53c875-0: Symbios format NVRAM, ID 7, Fast-20, Parity Checking
sym53c875-0: initial SCNTL3/DMODE/DCNTL/CTEST3/4/5 = (hex) 05/0e/a0/01/00/24
sym53c875-0: final SCNTL3/DMODE/DCNTL/CTEST3/4/5 = (hex) 05/46/80/00/08/24
sym53c875-0: on-chip RAM at 0xe2800000
sym53c875-0: Delay (GEN=11): 225 msec, 39503 KHz
sym53c875-0: Delay (GEN=11): 212 msec, 41926 KHz
sym53c875-0: Delay (GEN=11): 213 msec, 41729 KHz
sym53c875-0: PCI clock seems too high (41729 KHz).
[I removed the 'goto abort' in the code so that I could get past here...]
sym53c875-0: resetting, command processing suspended for 2 seconds
sym53c875-0: restart (scsi reset).
sym53c875-0: enabling clock multiplier
sym53c875-0: Downloading SCSI SCRIPTS.
scsi0 : sym53c8xx - version 1.5e
scsi : 1 host.
This is the first time I've actually "measured" the speed of my PCI bus.
My motherboard is an Asus SP97V (SiS 5598 chipset) with a Cyrix M-II
CPU running at 3x 83.3Mhz. The jumper on the motherboard to run the PCI
bus asynchronously -is- set (FS3 on pins 2-3) so I was surprised to see
it running at half my memory bus speed.
I haven't had any problems with the system that I haven't been able to
narrow down to other hardware. Has anyone else had experience with
motherboards running the PCI bus too fast or know anything about my
particular board?
Ultimately I care more about stability than bus speed.
[please cc me in any replies, I'm not on the scsi list]
thanks,
Greg
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