On Tue, 19 Jul 2011, Ed Endejan wrote: > Thanks to Ajay Kumar Gupta from TI for pointing me to a patch > which I believe has resolved this issue. The patch is referenced here: > http://www.spinics.net/lists/stable-commits/msg11219.html > This patch was for 2.6.38, but it applies cleanly without modification > to the 2.6.32 kernel we are using. Good news! By the way, this illustrates one of the reasons we keep advising people to use the most recent kernel version they can. > Hopefully this will help others who might be experiencing this issue. > > Based on my previous test results, I was focusing on HCD source code > which was unique to the TI EHCI, but this patch applies to the > mainline EHCI code. So I would not have found this problem for a long time. > > Can someone explain how the root cause of this bug was discovered? > In hindsight, I'm wondering if I missed something in my analysis > or if there were better tools that I should have been using > which would have helped me to isolate it more quickly. > Any thoughts/suggestions? The original problem was tracked down by Andiry Xu. See the email thread starting here: http://marc.info/?l=linux-usb&m=129860335026518&w=2 Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
