cdns: device mode: Linux hangs when USB cable is disconnected

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    • Type: Bug
    • Resolution: Unresolved
    • Priority: Medium
    • Linux Core SDK
    • LCPD-38007
    • 09.02.01
    • 11.02
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      Disconnecting USB cable causes Linux hangs. The procedure to reproduce the issue:

      • connect AM64x GPEVM USB0 port to a PC USB host port;
      • load g_printer driver on GPEVM;
      • sending a big file to /dev/g_printer0 on GPEVM;
      • disconnect the USB cable;
      • the GPEVM serial console and telnet session all hang immediately.

      The issue is on Cadence USB controller specific. It doesn't happen on AM62x or AM335x, which use different USB controllers.

      Customer report:

      https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1339889/am6442-linux-console-locks-when-usb-cable-is-disconnected
       

            Assignee:
            TI User
            Reporter:
            TI User
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              Created:
              Updated:

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