Hi Alan- This fix seems to have worked as well. One of my cameras did suffer a glitch during a 2 hour run, but dmesg was clean and I was able to recover from it, so it might have been something unrelated. Anyway like I said one of the hunks failed because of a code change in rc9 i guess, here's the hunk that failed, I changed the line manually and that's what I've been testing. @@ -2275,7 +2296,7 @@ scan_periodic (struct ehci_hcd *ehci) */ now_uframe = ehci->next_uframe; if (ehci->rh_state == EHCI_RH_RUNNING) { - clock = ehci_readl(ehci, &ehci->regs->frame_index); + clock = ehci_read_frame_index(ehci); clock_frame = (clock >> 3) & (ehci->periodic_size - 1); } else { clock = now_uframe + mod - 1; -thanks again jason ----- Original Message ----- From: "Alan Stern" <stern@xxxxxxxxxxxxxxxxxxx> To: "Jason N Pitt" <jpitt@xxxxxxxxx> Cc: "USB list" <linux-usb@xxxxxxxxxxxxxxx> Sent: Tuesday, October 11, 2011 8:11:15 AM Subject: Re: uvcvideo: Failed to resubmit video URB (-27) On Mon, 3 Oct 2011, Alan Stern wrote: > On Mon, 3 Oct 2011, Pitt, Jason N wrote: > > > jpitt@selenide:~/run1/cam12$ lspci -n -s 7:00.1 > > 07:00.1 0c03: 9710:9990 > > Ah, good, that's what I expected. > > Okay, below is a real patch to fix this problem. It's meant to be > applied without any of the earlier patches. If it works for you, I'll > submit it for inclusion in the upcoming kernel releases (including the > stable kernels). Jason: Have you been able to test this final patch yet? Alan Stern -- /* Jason Pitt PhD 206.667.5603 Roth Lab jpitt@xxxxxxxxx Basic Sciences Division Fred Hutchinson Cancer Research Center 1100 Fairview Ave N A3-135 Seattle, WA 98109 */ -- 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