Re: PCI DMA lockups in 3.2 (3.3 maybe?)

[Matthew Dillon]

:I've confirmed that neither problem exists in 4.0.  There are ample
:work-arounds, both hardware and software, including just not using 3.3.
:No fixes, though, just work-arounds...  Workarounds for the NCR/FXP
:issue included:
:
:1) Using 2.2.8 (4.0 isn't a production option).
:2) Using a different NIC (a Tulip worked fine).
:3) Using a different SCSI adapter (Adaptec, as Matt suggested, works fine).
:4) Using a different SCSI driver (Peter managed to get a driver from 4.0
:   hooked up under 3.3, and it survived two days of torture that would
:   have toasted things within an hour using the stock driver; you'll have
:   to ask him for details).

    Ed, this is great stuff!

    Are you sure about #4?  Is that the same ncr.c driver or something
    else?  There are only a few differences between the 3.x and 4.x
    /usr/src/sys/pci/ncr.c drivers.  Which Peter, Peter Wemm?

                                        -Matt
                                        Matthew Dillon 
                                        <[EMAIL PROTECTED]>


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