> -----Original Message----- > From: Lan Tianyu [mailto:lantianyu1...@gmail.com] > Sent: Wednesday, February 20, 2013 4:14 PM > To: Soar Hung > Cc: Alan Stern; Sarah Sharp; linux-usb@vger.kernel.org > Subject: Re: Not enough resource for old configuration after > USB bus reset > > 2013/2/19 Soar Hung <soarh...@realtek.com>: > > Hi all, > > > > I checkout the usb-next branch (on 2/18) and following the > https://wiki.ubuntu.com/KernelTeam/GitKernelBuild to build the kernel. > > > > After reboot, the new kernel version is Linux dev > 3.8.0-rc5-usbnext #1 SMP Mon Feb 18 18:04:02 CST 2013 i686 > i686 i386 GNU/Linux. > > > > I try the same operation to produce the issue, and it also fails. > Please attach the output of dmesg with CONFIG_USB_DEBUG and > XHCI_DEBUG.
With these two debug config on, the dmesg buffer even can not log one reset operation. What information do we want from these two debug config? We currently know that the issue is fail at the configure endpoint command after bus reset. The failing reason is the reset operation make the endpoint state disabled, and HCD still try to drop the disabled endpoint. This cause the host can not manage its resouce correctly. As a result, the last configure command fail with not enough bandwidth. Soar-- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
