[Bug 219039] kernel 6.6.39 freezes with QNAP TL-D800C usb case

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=219039

--- Comment #6 from matthias@bodenbinder.de ---
I created a patch file for 6.6.39 based on Michael's proposal (comment #3):

--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -2657,6 +2657,7 @@
                                 slot_id, ep_index);
                        goto err_out;
                }
+               inc_deq(xhci, ir->event_ring);
                return 0;
        }


I can confirm that this prevents the freezing. The device and the attached hard
discs work normal as far as I can tell. I did a fio benchmark run on one of the
zfs pools in that QNAP case and it executed just fine with the usual results.

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