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  1. CIFX Driver for QNX
  2. NXDRVQNX-23

DMA not working on QNX system with PAE enabled (physical addresses > 4GB)

          Details

          • Type: Bug
          • Status: Closed
          • Priority: Minor
          • Resolution: Fixed
          • Affects Version/s: V1.1.0.0
          • Fix Version/s: V1.2.0.0
          • Component/s: Driver
          • Labels:
            None
          • Account:
            SDO Driver (SDODRIVER)

            Description

            QNX offers PAE (Process Address Extension) allowing to handle physical memory above 4GB (>32Bit addresses).
            The DMA registers of the netX are limited to 32Bit which is not considered in the cifXAllocDMABuffer() function resulting DMA not working.

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                      • Reporter:
                        RMay Robert M [X] (Inactive)
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                        Dates

                        • Created:
                          Updated:
                          Resolved: