On Fri, 07 Dec 2007 22:01:33 -0700 Zan Lynx <[email protected]> wrote:
>
> On Fri, 2007-12-07 at 15:22 -0800, Andrew Morton wrote:
> > On Fri, 07 Dec 2007 23:09:43 +0000
> > Zan Lynx <[email protected]> wrote:
> [cut]
> > > > > Now with MM kernels 2.6.24 rc1-4 the PCMCIA adapter works again, but I
> > > > > only get read rates of 1.6 MB/s. When it used to work in 2.6.20 I got
> > > > > at least 16 MB/s. The card itself is capable of 30+ in the USB-2
> > > > > reader.
> [cut]
> > Maybe pata_pcmcia-minor-cleanups-and-support-for-dual-channel-cards.patch?
> >
> > Could you try a `patch -R' of the below?
> >
> >
> > From: Alan Cox <[email protected]>
> >
> > Signed-off-by: Alan Cox <[email protected]>
> > Signed-off-by: Andrew Morton <[email protected]>
> > ---
> >
> > drivers/ata/pata_pcmcia.c | 31 +++++++++++++++++--------------
> > 1 file changed, 17 insertions(+), 14 deletions(-)
> >
> > diff -puN drivers/ata/pata_pcmcia.c~pata_pcmcia-minor-cleanups-and-support-for-dual-channel-cards drivers/ata/pata_pcmcia.c
> [cut]
>
> Nope, that did not change anything. It still detects as PIO0 and still
> runs at 1.6 MB/s.
argh. OK. And Linus's current tree is OK, yes?
In which case we should be OK for 2.6.24 and I guess we can hope like heck
that the dud patch doesn't leak into mainline. Hopefully Alan will get
some time to look into it before 2.6.25 opens.
<looks>
OK, there's a patch in Jeff's tree "pata_pcmcia: Add support for dumb 8bit
IDE emulations" which could be our guy.
I've uploaded two patches, against 2.6.24-rc4:
http://userweb.kernel.org/~akpm/zl.with.gz
origin.patch + git-libata-all.patch
http://userweb.kernel.org/~akpm/zl.without.gz
origin.patch + git-libata-all.patch - 5ddcddd4dfeb16a9509dad647f509828d6fee605
It would be great if you could test both. If zl.with is bad and zl.without
is good then we know that 5ddcddd4dfeb16a9509dad647f509828d6fee605 caused
this problem.
Thanks.
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