David Brownell wrote: > So, trying for some (bad) ASCII art here > > TDs 1-4 submitted to ED, > HC completed a few (say, 1 & 2) > > ed.tail ---------------------------+ > ed.head ----------+ I > I I > v v > td1 --> td2 --> td3 --> td4 --> dummy > > Where "td" is like td1, and clearly is not the first TD in > the queue. > > One problem being that by now td1 and td2 should have shown up in > the donelist, through an IRQ. That would explain the symprom of > data transfers seeming to stop. > > It'd be interesting to see whether there's anything in that donelist; > if so, that might suggest that the driver somehow lost an IRQ. Try > printing its value in that "sanitize" path.
It looks like the donelist is empty. user.warn kernel: ohci_hcd 0000:00:13.0: IRQ INTR_SF lossage user.err kernel: ohci_hcd 0000:00:13.0: done_head:0 user.warn kernel: finish_unlinks user.warn kernel: finish_unlinks: 0x2daa480 != 0x2daa440 user.warn kernel: finish_unlinks:skip ed user.err kernel: ohci_hcd 0000:00:13.0: leak ed c2b8f140 (#82) state 0 (has tds) user.err kernel: ohci_hcd 0000:00:13.0: free td c2daa440 Mike ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
