On Mon, 11 Mar 2013, Sarah Sharp wrote: > > Is this repeatable? It would be more meaningful to see a kmemleak > > report for immediately after the USB-3 card is removed. The leak may > > be related to these two lines in the log (they occurred only once): > > > > [ 8768.825242] xhci_hcd 0000:11:00.0: Abort command ring failed > > [ 8768.825244] xhci_hcd 0000:11:00.0: HC died; cleaning up > > > > Perhaps cleaning up after a dead controller doesn't deallocate all that > > it should. Quite possibly this is connected with the fact that on this > > attempt, you removed the USB-3 card while the WD disk drive was plugged > > into it. > > I have a note to myself that the xHCI driver leaks memory on an endpoint > stall, but I can't remember exactly where. It's possible that the > device stalled, and the host died before we could clean it up. It's > also possible that the memory leak is somewhere else entirely. I don't think this memory leak has anything to do with endpoints. Martin's kmemleak report indicated that the memory was originally allocated near the start of usb_create_shared_hcd(), which means it was a whole usb_hcd structure. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
