When the buffer asserts discontinue (lnk_rdst_dsc_n) signal back to the PHY Rx a cycle before or in the same cycle as an embedded control symbol, the PHY will not properly discontinue the current packet. This will cause the packet to be duplicated upon Retry.
This issue will be fixed in Serial RapidIO v4.1 release expected to be available in February 2007.
If you need a fix for this issue sooner, please contact Xilinx Technical Support at:
Please provide three XCO files from v3.1 core.