[Bug 219924] New: xhci_hcd TRB DMA error and device lockup with AKLOT 2i2 USB audio interface

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=219924

            Bug ID: 219924
           Summary: xhci_hcd TRB DMA error and device lockup with AKLOT
                    2i2 USB audio interface
           Product: Drivers
           Version: 2.5
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: USB
          Assignee: drivers_usb@kernel-bugs.kernel.org
          Reporter: kernel@deimos.ca
        Regression: No

Created attachment 307892
  --> https://bugzilla.kernel.org/attachment.cgi?id=307892&action=edit
'dmesg' output while plugging device through a hub, lsusb -t, uname -a and
lspci | grep -i usb

My USB audio interface (AKLOT 2i2, Vendor 152a, Product 887e) causes a
reproducible failure in the Linux USB subsystem when unplugged during or after
audio activity. The issue is severe enough that the xHCI controller refuses to
re-enumerate the device until a full reboot (or cold plug with hub reset). My
laptop is a Lenovo Slim 7, 

In some cases, the AKLOT interface locks up internally, requiring power-cycle
or connection to another host to recover.

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