On 09/13/2011 10:12 AM, Chris Ball wrote: > Hi Jeremy, > > On Tue, Sep 13 2011, Jeremy Fitzhardinge wrote: >>> On Mon, Sep 12 2011, Jeremy Fitzhardinge wrote: >>>> Since 2.6.39, the SD card slot in my Lenovo X220 has stopped working. >>>> When I insert a card with current linux.git kernel (3.1-rc6), I get: >>>> >>>> [ 3891.745549] mmc0: new SDHC card at address b368 >>>> [ 3891.790704] mmcblk0: mmc0:b368 PNY 7.51 GiB >>>> [ 3891.795568] mmc0: Got data interrupt 0x00200000 even though no data >>>> operation was in progress. >>> Please could you try reverting a3c7778f8153b9 "mmc: sdhci: R1B command >>> handling + MMC_CAP_ERASE"? We've had one other similar report that >>> bisected to this patch. >> The revert was not entirely trivial (below), but I'm fairly sure I got >> it right, and it didn't help. > Thanks very much for doing that, sorry it didn't help. > > There's another related patch for your controller: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/773524 > > This was merged as 15bed0f2fa8e1d7db ("mmc: Added quirks for Ricoh > 1180:e823 lower base clock frequency"). Perhaps you could check that > this code is running for you? Yes, that's already there. > If it is running, and not helping, can I persuade you to try a full > bisection? OK, will do. > I don't think we have other reports of this bug, and the > only other person who has reported something like it wasn't a kernel > hacker. That's interesting; the X220 is a pretty common machine these days, I think. I wonder if there's variations in the SD controller or something? > Thanks! J -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
