Re: BUG 2.6.24-rc4-mm1 -- Boot still hangs w/ async scsi scan

[Lee Schermerhorn <Lee.Schermerhorn@hp.com>]

On Thu, 2007-12-06 at 10:35 -0800, Andrew Morton wrote:
> On Thu, 06 Dec 2007 13:14:22 -0500 Lee Schermerhorn <Lee.Schermerhorn@hp.com> wrote:
> 
> > On Wed, 2007-12-05 at 13:20 -0800, Andrew Morton wrote:
> > > On Wed, 05 Dec 2007 11:36:39 -0500
> > > Lee Schermerhorn <Lee.Schermerhorn@hp.com> wrote:
> > > 
> > > > As reported here:
> > > > 
> > > > 	http://marc.info/?l=linux-scsi&m=119645761124683&w=4
> > > > 
> > > > against 24-rc3-mm2, I'm still seeing the hang on my HP ia64 NUMA
> > > > platform under 24-rc4-mm1 with async scsi scan enabled.  I'm still
> > > > seeing the message  "mptspi: ioc#: mpt_config failed" when it hangs. 
> > > > 
> > > > I can boot by disabling async scan.  However, I've also noticed some
> > > > disks attached via one of the "mpt" adapters ["scsi8" in console long in
> > > > message linked above] going "off-line" during stress tests.  This was
> > > > under 24-rc3-mm2.  Haven't got that far yet with 24-rc4-mm1.
> > > > 
> > > 
> > > Is ther any way of tricking you into
> > > http://www.zip.com.au/~akpm/linux/patches/stuff/bisecting-mm-trees.txt?
> > > 
> > > Obvious culprits to start with would be git-scsi-misc and maybe
> > > scsi-early-detection-of-medium-not-present-updated.patch.  But there are
> > > only 20-odd scsi patches in there.
> > 
> > The reported hang occurs after pushing the git-scsi-misc patch.
> 
> OK, thanks.
> 
> >  I'm
> > looking into it now, but it's rather large and I'm a neophyte in this
> > area.  If James can point me at a broken-out quilt series for this
> > patch, I'd be willing to try to bisect that--
> 
> I doubt if such a thing exists.
> 
> > assuming that it IS
> > bisectable.
> 
> Often git trees are not bisectable.  But they should be.
> 
> Your best bet is to do a git-bisect on
> git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6.git
> 
> http://www.kernel.org/doc/local/git-quick.html
> 

Ah, well... Can't promise that will happen any time soon...

Lee