James Bottomley wrote:
On Wed, 2008-03-05 at 06:58 -0500, Mark Hounschell wrote:
Mike Christie wrote:
Mark Hounschell wrote:
Mark Hounschell wrote:
Mike Christie wrote:
Mike Christie wrote:
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)?
If you are doing SG_IO to the sg device, then I know of one regression
(well not regression exactly, but I fixed a bug but the patch got
partially overwritten by another patch and that caused a new bug). Both
bugs are fixed in 2.6.25-rc2. Could you try that out if you are doing
SG_IO to the sg device.
Yes, I'm using /dev/sg*. And yes again I'll checkout 2.6.25-rc2 ASIC.
Thanks
Mark
-
2.6.25-rc2 does fix the problem I'm having. I don't suppose there is a
patch
lying around for 2.6.24.2??
I attached a backport of the patch from Tony (added as cc) that is in
2.6.25-rc2. Could you try it out against 2.6.24.2 just to make sure it
was this patch, then we can send it to stable.
Mark Hounschell wrote:
Sorry it took so long. This does fix my problem. I hope it's not to
late for 2.6.24.3
Backport
76d78300a6eb8b7f08e47703b7e68a659ffc2053
to 2.6.24
Erm, I think you mean:
You are right.
commit 4d2de3a50ce19af2008a90636436a1bf5b3b697b
Author: Tony Battersby <tonyb@xxxxxxxxxxxxxxx>
Date: Tue Feb 5 10:36:10 2008 -0500
[SCSI] fix BUG when sum(scatterlist) > bufflen
I can send it ... I thought the error was introduced post 2.6.24, but it
was actually in 2.6.24-rc1
Ok thanks.
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