On Thu, 13 May 2010 09:16:31 -0700 (PDT) Linus Torvalds wrote: > > > On Thu, 13 May 2010, Dmitry Torokhov wrote: > > > > From what I remember (it was a few weeks old thread) we were hanging > > when trying to read from the controller in i8042_flush(). Normally, if > > controller isn't there we'd get a stream of 0xff which will never > > "clear" and so after 32 reads we give up and abort controller > > initialization. But on Bastien's box it just sits there. > > Is there a web interface to some archive for linux-input (or was this > thread on lkml)? >From Jan. 20, on lkml. See http://lkml.org/lkml/2010/1/20/254 > Anyway, the fact that apparently pressing the power button makes it come > alive again implies that it's likely SCI/SMI-related. Which is not > entirely unexpected if there is some crazy SMM thing going on. But > presumably whatever buggy Apple code is _supposed_ to work for Windows, so > I wonder what bug that quite simple status/data register read could > possibly trigger. > > Is it the status read or the data read that causes problems, and is it the > first one or after doing a few? A couple of printk's in that i8042_flush() > routine should tell us. --- ~Randy *** Remember to use Documentation/SubmitChecklist when testing your code *** -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
