On Wed, 2014-07-02 at 17:19 -0600, Alex Williamson wrote:
> On Wed, 2014-07-02 at 15:52 -0700, James Bottomley wrote:
> > On Wed, 2014-07-02 at 17:44 -0500, Mike Christie wrote:
> > > On 07/02/2014 05:15 PM, Alex Williamson wrote:
> > > > On Sat, 2014-06-28 at 10:47 -0700, Greg Kroah-Hartman wrote:
> > > >> > 3.15-stable review patch.  If anyone has any objections, please let 
> > > >> > me know.
> > > >> > 
> > > >> > ------------------
> > > >> > 
> > > >> > From: Sagi Grimberg <sa...@mellanox.com>
> > > >> > 
> > > >> > commit d77e65350f2d82dfa0557707d505711f5a43c8fd upstream.
> > > >> > 
> > > >> > In case protection information exists over the wire
> > > >> > iscsi header data length is required to include it.
> > > >> > Use protection information aware scsi helpers to set
> > > >> > the correct transfer length.
> > > >> > 
> > > >> > In order to avoid breakage, remove iser transfer length
> > > >> > checks for each task as they are not always true and
> > > >> > somewhat redundant anyway.
> > > >> > 
> > > >> > Signed-off-by: Sagi Grimberg <sa...@mellanox.com>
> > > >> > Reviewed-by: Mike Christie <micha...@cs.wisc.edu>
> > > >> > Acked-by: Mike Christie <micha...@cs.wisc.edu>
> > > >> > Signed-off-by: Nicholas Bellinger <n...@linux-iscsi.org>
> > > >> > Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>
> > > >> > 
> > > >> > ---
> > > >> >  drivers/infiniband/ulp/iser/iser_initiator.c |   34 
> > > >> > +++++++--------------------
> > > >> >  drivers/scsi/libiscsi.c                      |   18 +++++++-------
> > > >> >  2 files changed, 19 insertions(+), 33 deletions(-)
> > > > I'm a bit late to object, but this is causing a regression for me on
> > > > 3.15.3 and 3.16-rc.  Using an iscsi_tcp rootfs, I'm seeing the NULL
> > > 
> > > 
> > > A fix for this is in Christoph's tree. Here is the status of the patch.
> > > 
> > > http://marc.info/?l=linux-kernel&m=140432482527273&w=2
> > 
> > I assume it's this fix:
> > 
> > commit 7bafc240e126c37f60b040fa429ae4a710b88ab5
> > Author: Martin K. Petersen <martin.peter...@oracle.com>
> > Date:   Tue Jun 24 16:59:35 2014 +0200
> > 
> >     scsi: use the scsi data buffer length to extract transfer size
> >  
> > In which case it's not marked for stable backport ... I assume it should
> > be?
> 
> Yes, that's the one.  It definitely needs a 3.15 stable backport.
> Thanks,
> 

Yes.  James, please mark this for v3.15.y and push to Linus ASAP.

Thank you,

--nab

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