Hi, Thanks for debugging this!
On Tue, Mar 27 2012, Sascha Silbe wrote: > Excerpts from Chris Ball's message of 2012-03-26 20:36:21 +0200: > >> > I'm specifically asking because recent kernels don't like my SD card >> > (only one in about twenty or fifty boots succeeds; two different >> > failure modes), so I'd need to make sure I diagnose and fix that >> > before upgrading OFW the next time. >> >> That sounds bad, what are the failure modes? > > The first, more common one is that the card is detected, but cannot be > read from: > > [ 664.720232] mmc0: new ultra high speed SDHC card at address e624 I haven't used a UHS-I card before, so you're in uncharted territory. :) > git bisect blames the following OLPC commit: > > 39fc327e8d541d146528f03150fec36189e4dac5 is the first bad commit > commit 39fc327e8d541d146528f03150fec36189e4dac5 > Author: Andres Salomon <dilin...@queued.net> > Date: Thu Dec 22 16:28:55 2011 -0800 > > sdhci-pxa: add retuning of timing in the case of CRC errors > > This is only for the !wlan devices. > > Signed-off-by: Andres Salomon <dilin...@queued.net> That's very interesting. Does reverting this commit result in a kernel that boots every time, then? - Chris. -- Chris Ball <c...@laptop.org> <http://printf.net/> One Laptop Per Child _______________________________________________ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
