Messages in this thread | | | From | "Benjamin Herrenschmidt" <> | Subject | Re: 2.4.19 SCSI core bug? | Date | Thu, 12 Sep 2002 11:41:17 +0200 |
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>1. we need to come up with a way of reasonably handing SCSI medium > errors if we are going to use the READ10 command with the FUA > bit clear. > >2. we could just set the FUA bit and bypass the drives on-board > cache completely. > >Note that the only reason I've found this is because my HBA drives >are _really_ pedantic about checking that all expected data does >in fact get transferred by the drive. > >I wonder how many other drives out there are buggy like this. 8/
What about setting FUA on the next command after an error ?
Would this work or may the disk really keep stale data around ?
I don't have a recent SCSI spec at hand, but is there a command we can send after an error to force a cache flush & invalidate or will it only flush dirty datas to platter and not invalidate ?
Ben.
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