Hello Pratyush, A kernel bug report was opened against Ubuntu [0]. After a kernel bisect, it was found that reverting the following commit resolved this bug: commit a40178b2fa6ad87670fb1e5fa4024db00c149629 Author: Pratyush Anand <pratyush.anand@xxxxxx> Date: Fri Jul 18 12:37:10 2014 +0530 USB: Fix persist resume of some SS USB devices The regression was introduced as of v3.17-rc1. The regression still exists in the 3.18-rc3 mainline kernel, and has made it's way into the stable kernels. I was hoping to get your feedback, since you are the patch author. Do you think gathering any additional data will help diagnose this issue, or would it be best to submit a revert request? Thanks, Joe [0] http://pad.lv/1384041 -- 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