Messages in this thread | ![/](/images/icornerl.gif) | | From | "Eric Youngdale" <> | Date | Fri, 8 Mar 1996 11:09:09 -0500 | Subject | Re: SCSI Kernel Problem - BAD |
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>Well, actually I believe there are presently problems with abort and reset >handling that are inherent in the current interfaces, and so there is no way >the drivers can work correctly. I described one of these problems last week >but I haven't seen any discussion so perhaps that message was swallowed >somewhere. More on these issues in a subsequent message.
While you are right that there are problems with abort and reset, I believe that they have always been there. In general, fault handling should have been slowly been improving as time has gone on (and I get ideas as to how to handle some of these situations).
I cannot think of anything that has changed at the scsi level which could explain this sort of problem - I guess my inclination is to wonder whether the new page cache stuff is related.
One thing to keep in mind that may be related - I have discovered that with some disk drives, attempts to access beyond the end of the disk will lock the thing up. It is possible that with the new page cache we are inadvertently requesting a sector that is beyond the end, and this is leading to a lockup. One way to test this is to simply look at the messages logged to the console and see what sectors we are trying to access when the thing locks up.
-Eric
-- "The woods are lovely, dark and deep. But I have promises to keep, And lines to code before I sleep, And lines to code before I sleep."
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