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The UEFI specification requires the EFI_SIMPLE_NETWORK_PROTOCOL GetStatus() method to set TxBuf to NULL if there are no transmit buffers to recycle. Some implementations (observed with Lan9118Dxe in EDK2) fill in TxBuf only when there is a transmit buffer to recycle, which leads to large numbers of "spurious TX completion" errors. Work around this problem by initialising TxBuf to NULL before calling the GetStatus() method. Signed-off-by: Michael Brown <mcb30@ipxe.org>
iPXE README File Quick start guide: cd src make For any more detailed instructions, see http://ipxe.org