linux-kernel - Re: sata badness in 2.6.20-rc1? [Was: Re: md patches in -mm]

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Date:	Sun, 17 Dec 2006 12:00:12 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Andrew Morton <akpm@...l.org>
Cc:	Jeff Garzik <jeff@...zik.org>, Neil Brown <neilb@...e.de>,
	Jurriaan <thunder7@...all.nl>, linux-kernel@...r.kernel.org,
	linux-raid@...r.kernel.org, Tejun Heo <htejun@...il.com>,
	Alan <alan@...rguk.ukuu.org.uk>, Luben Tuikov <ltuikov@...oo.com>
Subject: Re: sata badness in 2.6.20-rc1? [Was: Re: md patches in -mm]

On Saturday, 16 December 2006 12:16, Rafael J. Wysocki wrote:
> On Saturday, 16 December 2006 10:56, Rafael J. Wysocki wrote:
> > On Saturday, 16 December 2006 00:38, Rafael J. Wysocki wrote:
> > > On Friday, 15 December 2006 23:24, Jeff Garzik wrote:
> > > > Rafael J. Wysocki wrote:
> > > > > On Friday, 15 December 2006 22:39, Andrew Morton wrote:
> > > > >> On Fri, 15 Dec 2006 13:05:52 -0800
> > > > >> Andrew Morton <akpm@...l.org> wrote:
> > > > >>
> > > > >>> Jeff, I shall send all the sata patches which I have at you one single time
> > > > >>> and I shall then drop the lot.  So please don't flub them.
> > > > >>>
> > > > >>> I'll then do a rc1-mm2 without them.
> > > > >> hm, this is looking like a lot of work for not much gain.  Rafael, are
> > > > >> you able to do a quick chop and tell us whether these:
> > > > >>
> > > > >> pci-move-pci_vdevice-from-libata-to-core.patch
> > > > >> pata_cs5530-suspend-resume-support-tweak.patch
> > > > >> ata-fix-platform_device_register_simple-error-check.patch
> > > > >> initializer-entry-defined-twice-in-pata_rz1000.patch
> > > > >> pata_via-suspend-resume-support-fix.patch
> > > > >> sata_nv-add-suspend-resume-support.patch
> > > > >> libata-simulate-report-luns-for-atapi-devices.patch
> > > > >> user-of-the-jiffies-rounding-patch-ata-subsystem.patch
> > > > >> libata-fix-oops-with-sparsemem.patch
> > > > >> sata_nv-fix-kfree-ordering-in-remove.patch
> > > > >> libata-dont-initialize-sg-in-ata_exec_internal-if-dma_none-take-2.patch
> > > > >> pci-quirks-fix-the-festering-mess-that-claims-to-handle-ide-quirks-ide-fix.patch
> > > > >>
> > > > >> are innocent?
> > > > > 
> > > > > Yes, they are.
> > > > 
> > > > We all really appreciate your patience :)  This is good feedback.
> > > > 
> > > > To narrow down some more, does applying 2.6.20-rc1 + the attached patch 
> > > > work?  (ignoring -mm tree altogether)
> > > 
> > > Yes, it does.
> > 
> > I've applied the patches from -rc1-mm1 up to and including
> > 
> > problem-phy-probe-not-working-properly-for-ibm_emac-ppc4xx.patch
> > 
> > on top of 2.6.20-rc1 and they don't seem to break anything.  Will try some
> > more.
> 
> The patch that breaks things is somewhere between
> 
> dont-export-device-ids-to-userspace.patch
> 
> and
> 
> funsoft-is-bust-on-sparc.patch
> 
> inclusive.
> 
> Now I'll need to resync my disk arrays so if anyone has any suggestions
> what to try next, I'll be grateful. ;-)

Okay, I have identified the patch that causes the problem to appear, which is

fix-sense-key-medium-error-processing-and-retry.patch

With this patch reverted -rc1-mm1 is happily running on my test box.

Greetings,
Rafael


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