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    DMA error on NIC card

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    • C
      cjbujold
      last edited by

      We are getting occasionally the following error (Pfsense 2.2.5-RELEASE (amd64) )

      alc0: DMA read error - resetting
      alc0 : could not disable RxQ/TxQ ( 0x00000008)
      alc0: could not disable Rx/Tx Mac (0x00000008)

      What does this error indicate and is it critical and how can we fix it?

      Thanks

      cjb

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