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Date: Fri, 22 Feb 2008 10:50:19 -0600
From: Mike Christie <michaelc@cs.wisc.edu>
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Subject: Re: New 2.6.24.2 SG_IO SCSI problems
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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.
> 

Are you doing SG_IO to the sg device (/dev/sg*) or to the block device 
(/dev/sdX)?