<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> <HTML ><HEAD ><TITLE >Known Problems and Bugs</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK REL="HOME" TITLE="SiS 900/7016 Fast Ethernet Device Driver" HREF="book1.html"><LINK REL="PREVIOUS" TITLE="Building the driver into kernel" HREF="x159.html"><LINK REL="NEXT" TITLE="Revision History" HREF="c183.html"></HEAD ><BODY CLASS="CHAPTER" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >SiS 900/7016 Fast Ethernet Device Driver</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="x159.html" ACCESSKEY="P" ><<< Previous</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="c183.html" ACCESSKEY="N" >Next >>></A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="CHAPTER" ><H1 ><A NAME="PROBLEMS" ></A >Known Problems and Bugs</H1 ><P >There are some known problems and bugs. If you find any other bugs please mail to <A HREF="mailto:lcchang@sis.com.tw" TARGET="_top" >lcchang@sis.com.tw</A > <P ></P ><OL TYPE="1" ><LI ><P >AM79C901 HomePNA PHY is not thoroughly tested, there may be some bugs in the <SPAN CLASS="QUOTE" >"on the fly"</SPAN > change of transceiver. </P ></LI ><LI ><P >A bug is hidden somewhere in the receive buffer management code, the bug causes NULL pointer reference in the kernel. This fault is caught before bad things happen and reported with the message: <TT CLASS="COMPUTEROUTPUT" >eth0: NULL pointer encountered in Rx ring, skipping </TT > which can be viewed with <TT CLASS="LITERAL" >dmesg</TT > or <TT CLASS="LITERAL" >cat /var/log/message</TT >.</P ></LI ><LI ><P >The media type change from 10Mbps to 100Mbps twisted-pair ethernet by ifconfig causes the media link down.</P ></LI ></OL ></P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="x159.html" ACCESSKEY="P" ><<< Previous</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="book1.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="c183.html" ACCESSKEY="N" >Next >>></A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Building the driver into kernel</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" > </TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Revision History</TD ></TR ></TABLE ></DIV ></BODY ></HTML >
