Hi Andiry, After my two week holiday, i would like to resume my quest in finding my problem where my USB3 passthrough on Xen seems to freeze my complete system. It seems to be DMA related, although after consulting with the guy who works on the pci passthrough / swiotlb on Xen he couldn't find Xen related problems at first hand. Of special interest to me is the thread by "Paul Zimmerman" on the usb-devel mailing list. Also reporting a freeze. I didn't see any outcome of that discussion. Is there somewhere were i can get the most recent set of patches for xhci/isoc, or is linus 2.6.36-rc4 tree up to date ? -- Sander -- 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