Messages in this thread | | | Subject | Re: AIC7XXX oddities | Date | Tue, 10 Apr 2001 06:32:40 -0600 | From | "Justin T. Gibbs" <> |
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>An invocation of hdparm -Tt /dev/sda (id 5) does this: > >(scsi1:A:1): 5.000MB/s transfers (5.000MHz, offset 15) >(scsi1:A:6): 20.000MB/s transfers (20.000MHz, offset 15) >(scsi0:A:5): 3.300MB/s transfers
The situation might be clearer if you run with aic7xxx=verbose. My guess is that the target detected a CRC error a transaction and negotiated async as an indication that the initiator should perform domain validation on this bus segment again. Unfortunatly, the driver doesn't yet support domain validation, so you end up being stuck at 3.3MB/s. I would suggest looking for problems with your cabling or termination on that controller.
-- Justin - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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