Hi Andiry, Yes, since i was testing on baremetal instead of in a VM, i had to use another program to do the videograbbing, it turned out I was trying to use the old v4l1 interface instead of v4l2. That should have worked, but resulted in an Oops, using v4l2 (as intended) did work. During my vacation, I have had the grabber passed through to the VM (on USB2) and it is running for +20 days now (24/7 grabbing), the machine had a lot of disk and network access as well. So the setup in essence could work, still having to find out what exactly in passthrough in combination with XHCI makes it freeze completely without any Oops or Trace. That's why I was interessted in the thread with Paul Zimmerman, although i didn't see a conclusion. -- Sander Tuesday, September 14, 2010, 9:53:00 AM, you wrote: > Hi Sander, > As far as I know, there is no recent update patch for xhci isoc. > In your last mail you mentioned you also observed em28xx driver on USB2 > issue. Is that fixed? > Please apply the patch I sent to you last time when you catch the freeze > symptom. > Thanks & Best regards, > Andiry > >> -----Original Message----- >> From: Sander Eikelenboom [mailto:linux@xxxxxxxxxxxxxx] >> Sent: Monday, September 13, 2010 7:32 PM >> To: Xu, Andiry >> Cc: Sarah Sharp; linux-usb@xxxxxxxxxxxxxxx >> Subject: XHCI freezes, most up to date patches / tree ? >> >> 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 >> -- Best regards, Sander mailto:linux@xxxxxxxxxxxxxx -- 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
