Messages in this thread | | | Subject | Re: 2.6.24-rc4-mm1 and Very Slow PCMCIA Compact Flash | From | Zan Lynx <> | Date | Fri, 07 Dec 2007 23:39:04 +0000 |
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On Fri, 2007-12-07 at 15:22 -0800, Andrew Morton wrote: > On Fri, 07 Dec 2007 23:09:43 +0000 > Zan Lynx <zlynx@acm.org> wrote: > > > > > On Fri, 2007-12-07 at 15:02 -0800, Andrew Morton wrote: > > > On Fri, 07 Dec 2007 20:38:24 +0000 > > > Zan Lynx <zlynx@acm.org> wrote: > > > > > > > While I'm reporting problems I'll get this one out there. > > > > > > > > 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. > > > > > > > > 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] > Oh, OK. Hopefully the ata guys can help out with this. > > I don't know if it actually strictly a regression? Did libata ever support > 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. -- Zan Lynx <zlynx@acm.org> [unhandled content-type:application/pgp-signature]
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