On Thu, Mar 30, 2017 at 10:29:41AM +0200, Christian Gromm wrote: > > > On 03/27/2017 11:31 AM, Felipe Balbi wrote: > > > > Hi, > > > > Christian Gromm <christian.gromm@xxxxxxxxxxxxx> writes: > > > we observe an issue with a td_list running empty and an > > > endpoint being stalled at the same time on > > > > > > Linux ihu-low 4.1.27-abl #1 SMP PREEMPT Mon Mar 20 13:51:51 CET 2017 > > > x86_64 x86_64 x86_64 GNU/Linux. > > > > this is one old kernel. Please upgrade to v4.11-rc4 or v4.10 and try again. > > > > Unfortunately, the system is Yocto based and cannot be updated to 4.10+. > > We applied the following patches to have the xhci code at 4.1.39 > > $ git log --oneline v4.1.27..v4.1.39 -- drivers/usb/host/xhci-* > c068da4 xhci: fix deadlock at host remove by running watchdog correctly > 8e77b80 usb: xhci: apply XHCI_PME_STUCK_QUIRK to Intel Apollo Lake > 18ee106 usb: xhci: hold lock over xhci_abort_cmd_ring() > af7f5bf xhci: Handle command completion and timeout race > adae871 usb: host: xhci: Fix possible wild pointer when handling abort > command > 073dd4e usb: xhci: fix possible wild pointer > 4b6ac34 xhci: free xhci virtual devices with leaf nodes first > 605a696 xhci: workaround for hosts missing CAS bit > c23a6dc xhci: add restart quirk for Intel Wildcatpoint PCH > 3b244a6 xhci: fix usb2 resume timing and races. > 631f063 xhci: fix null pointer dereference in stop command timeout function > e1052fb usb: xhci: Fix panic if disconnect > 23c50b2 xhci: always handle "Command Ring Stopped" events > 95cb83b USB: xhci: Add broken streams quirk for Frescologic device id 1009 > 0c3f25d usb: xhci-plat: properly handle probe deferral for devm_clk_get() > e78c8a5 xhci: Fix handling timeouted commands on hosts in weird states. > > > The issue is still there. Any other recommendation? Use a newer kernel, 4.1 is not supported at all. If you are stuck with that kernel, go get support from the company that you are paying for support from for that kernel release. good luck! greg k-h -- 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
