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Re: [dm-devel] [RFC PATCH 0/3] differentiate between I/O errors

On Fri, Dec 10 2010 at  6:40pm -0500,
Malahal Naineni <malahal us ibm com> wrote:

> Mike Snitzer [snitzer redhat com] wrote:
> > Refreshed Hannes' initial "scsi: Detailed I/O errors" patch against
> > v2.6.37-rc5.  v2 introduces __scsi_error_from_host_byte to avoid
> > the duplicate switch statement.  Also a few whitespace and comment
> > changes.
> > 
> > Split DM mpath change out to separate v2 patch; failed discard is now
> > retryable in the face of a non-target IO error.
> > 
> > Added improved block layer's I/O error message (based on the finer
> > grained I/O error returns afforded by SCSI).
> > 
> > Comments/suggestions are welcome.
> I did test the Hannes original patch with the latest Linus' git tree! I
> used scsi_debug to simulate path failures as well as 'Media' failures
> and it did work as expected. I will test your patches soon.

Hi Malahal,

I was wondering if you had any feedback (testing or otherwise) for these


We haven't heard from Hannes in a bit but I was hoping we could at least
understand that the few changes I made are agreeable and working as


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