Hi Shuah, Thanks for your response. It's on KVM hypervisor platform, while the Dom0 is the usbip server, and a DomU act as the client. This issue could be 100% reproduced with the specified devices referred in my patch comment.
I will prepare the environment and then send you related information later. ********* ***** BRs, Pei Zhang > -----Original Message----- > From: Shuah Khan [mailto:sh...@kernel.org] > Sent: Wednesday, January 10, 2018 1:44 AM > To: Zhang, Pei <pei.zh...@intel.com>; valentina.mane...@gmail.com; > gre...@linuxfoundation.org > Cc: linux-usb@vger.kernel.org; linux-ker...@vger.kernel.org; Shuah Khan > <shua...@osg.samsung.com>; Shuah Khan <sh...@kernel.org> > Subject: Re: [PATCH V2] USBIP: return correct port ENABLE status > > On 12/18/2017 11:00 PM, pei.zh...@intel.com wrote: > > From: Pei Zhang <pei.zh...@intel.com> > > > > USB system will clear port's ENABLE feature for some USB devices when > > vdev is already assigned port address. This cause getPortStatus > > reports to system that this device is not enabled, client OS will > > failed to use this usb device. > > > > The failure devices include a SAMSUNG SSD storage, Logitech webcam > C920. > > > > V2: send again to all related maintainers. > > > > Signed-off-by: Pei Zhang <pei.zh...@intel.com> > > Hi Pei Zhang, > > Can you elaborate on how you can trigger this condition? Can you send me > more information on how to recreate the problem and demsg from server > and client side when this problem happens. > > thanks, > -- Shuah
