Messages in this thread | | | Date | Thu, 14 Mar 2013 16:32:46 -0400 (EDT) | From | Alan Stern <> | Subject | Re: [PATCH] USB: EHCI: fix for leaking isochronous data |
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On Thu, 14 Mar 2013, Soeren Moch wrote:
> >> I added a debug message to > >> drivers/usb/host/ehci-sched.c:itd_urb_transaction() to log the > >> allocation flags, see log below. > > > > But it looks like you didn't add a message to end_free_itds(), so we > > don't know when the memory gets deallocated. And you didn't print out > > the values of urb, num_itds, and i, or the value of itd (so we can > > match up allocations against deallocations). > > OK, I will implement this more detailed logging. But with several > allocations per second and runtime of several hours this will result in > a very long logfile.
If the memory really is being leaked here in some sort of systematic way, we may be able to see it in your debugging output after a few seconds.
Alan Stern
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