Re: New 2.6.24.2 SG_IO SCSI problems

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On Thu, 2008-02-21 at 10:15 -0500, Mark Hounschell wrote:
> I seem to have run into some sort of regression in the SG_IO interface of 2.6.24.2. 
> I have an application that up until 2.6.24 worked fine. The 2.6.23.16 kernel works fine.
> 
> During reads I get these kernel messages. Writes and other functions _seem_ OK. Actually basic
> reads  are working. Its with large BC reads using an io_vec list that the problem shows up.
> 
> Feb 21 09:27:51 harley kernel: (scsi1:A:2:0): data overrun detected in Data-in phase.  Tag == 0x1.
> Feb 21 09:27:51 harley kernel: (scsi1:A:2:0): Have seen Data Phase.  Length = 256.  NumSGs = 1.
> Feb 21 09:27:51 harley kernel: sg[0] - Addr 0x06256100 : Length 256

Help me a little here.  What was the io_vec and command you sent in to
produce this?  The aic debugging information implies a single element sg
list for a 256 byte read.

James


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