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 > > -- 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
