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. Ciao, Marcus 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
