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?
Thanks,
Chris
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