From mboxrd@z Thu Jan 1 00:00:00 1970 From: Zan Lynx Subject: Re: 2.6.24-rc4-mm1 and Very Slow PCMCIA Compact Flash Date: Fri, 07 Dec 2007 23:39:04 +0000 Message-ID: <1197070744.15428.33.camel@localhost> References: <1197059904.15428.15.camel@localhost> <20071207150251.a0dbae23.akpm@linux-foundation.org> <1197068983.15428.29.camel@localhost> <20071207152249.360af326.akpm@linux-foundation.org> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="=-DqAwPAeW7Gfhi+oYS+Kg" Return-path: In-Reply-To: <20071207152249.360af326.akpm@linux-foundation.org> Sender: linux-kernel-owner@vger.kernel.org To: Andrew Morton Cc: linux-kernel@vger.kernel.org, linux-pcmcia@lists.infradead.org, linux-ide@vger.kernel.org List-Id: linux-ide@vger.kernel.org --=-DqAwPAeW7Gfhi+oYS+Kg Content-Type: text/plain Content-Transfer-Encoding: quoted-printable On Fri, 2007-12-07 at 15:22 -0800, Andrew Morton wrote: > On Fri, 07 Dec 2007 23:09:43 +0000 > Zan Lynx wrote: >=20 > >=20 > > On Fri, 2007-12-07 at 15:02 -0800, Andrew Morton wrote: > > > On Fri, 07 Dec 2007 20:38:24 +0000 > > > Zan Lynx wrote: > > >=20 > > > > While I'm reporting problems I'll get this one out there. > > > >=20 > > > > I normally use a USB-2 memory card reader but I also have a PCMCIA > > > > CompactFlash adapter that I use occasionally. During the MM series > > > > kernels 2.6.22 and 23 (I am pretty sure) this didn't work at all. = I > > > > don't know about vanilla since I don't run that. > > > >=20 > > > > Now with MM kernels 2.6.24 rc1-4 the PCMCIA adapter works again, bu= t 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. > > > > > >=20 [cut] > Oh, OK. Hopefully the ata guys can help out with this. >=20 > I don't know if it actually strictly a regression? Did libata ever suppo= rt > that device in any earlier kernels? That could be why it didn't work for a few kernel versions. I reconfigured for a libata-only system a while back. And, since I usually use the USB-2 flash reader I didn't care much about the PCMCIA. I will try reverting that patch later tonight, in a few hours. --=20 Zan Lynx --=-DqAwPAeW7Gfhi+oYS+Kg Content-Type: application/pgp-signature; name=signature.asc Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.7 (GNU/Linux) iD8DBQBHWdmYG8fHaOLTWwgRAm8vAKCY1iRViJwnnqs4Q1gu6gR/LZT5awCdHab7 VKBRbOgE/uAmzSeUsngtHU8= =a9VD -----END PGP SIGNATURE----- --=-DqAwPAeW7Gfhi+oYS+Kg--