On Sat, Oct 12, 2013 at 09:25:17AM +0200, Marcus Meissner wrote: > Hi Sarah, > > I built: > > - current kernel git with SUSE config > - libgphoto2 with the clear_halt reenabled > - rebooted > > gphoto2 now hangs on the second try > > - only applied both patches referenced. > I need to whack them a bit as xhci_giveback_urb_in_irq got a new parameter > - rebuilt, rebooted > > gphoto2 now works on multiple tries. > > So the patches seem to fix the issue for my usecase.
Great! Can you also try it without the second patch? It's not needed, but I want to double check that the code still works without it. Thanks, Sarah Sharp > On Thu, Oct 10, 2013 at 02:43:49PM -0700, Sarah Sharp wrote: > > Hi Sipter and Marcus, > > > > Xenia has a potential fix for a long-standing bug in the xHCI driver, > > and I need your help testing it. You ran into that bug back in Feb > > 2013: > > > > http://sourceforge.net/mailarchive/forum.php?thread_name=CAGjSPUAQ8phZFu9dj60wt9zZpoghcQMVUAwgd2y3NvLmiAZH7Q%40mail.gmail.com&forum_name=libusbx-devel > > > > The issue was that gphoto2 unconditionally cleared a halt on all > > endpoints after the camera was closed. This triggered a bug in the xHCI > > driver, making it so gphoto2 couldn't talk to the device on a subsequent > > open. You worked around the issue by removing the clear halt in > > gphoto2. > > > > Now Xenia has a potential fix for that bug, and she needs help testing > > that fix. Would it be possible to add that clear halt back into > > gphoto2, apply the following two kernel patches, and make sure gphoto2 > > still works? > > > > http://marc.info/?l=linux-usb&m=138116117104619&w=2 > > http://marc.info/?l=linux-usb&m=138116117204620&w=2 > > > > > > Hi Pratyush, > > > > I believe you also ran into this issue back in Sept 2012, when you were > > running usbtest #13 (Endpoint Halt Test) under a TI xHCI host. The > > tests failed for devices under xHCI. If you can still reproduce that > > issue, can you try the test again with the two patches? > > > > > > Hi Yuliya, > > > > You ran into this issue as well, back in Oct 2012. You added a set > > interface to your driver to work around the issue. If you're still > > working on that code, can you take the set interface out, test these two > > patches, and let me know if your device works? > > > > Thanks, > > Sarah Sharp > > ------------------------------------------------------------------------------ October Webinars: Code for Performance Free Intel webinars can help you accelerate application performance. Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from the latest Intel processors and coprocessors. See abstracts and register > http://pubads.g.doubleclick.net/gampad/clk?id=60135031&iu=/4140/ostg.clktrk _______________________________________________ libusbx-devel mailing list libusbx-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libusbx-devel
