1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>Chapter 8. Known Bugs And Assumptions</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="Z8530 Programming Guide"><link rel="up" href="index.html" title="Z8530 Programming Guide"><link rel="prev" href="Porting_The_Z8530_Driver.html" title="Chapter 7. Porting The Z8530 Driver"><link rel="next" href="pubfunctions.html" title="Chapter 9. Public Functions Provided"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 8. Known Bugs And Assumptions</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="Porting_The_Z8530_Driver.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="pubfunctions.html">Next</a></td></tr></table><hr></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a name="bugs"></a>Chapter 8. Known Bugs And Assumptions</h1></div></div></div><p> 2 </p><div class="variablelist"><dl class="variablelist"><dt><span class="term">Interrupt Locking</span></dt><dd><p> 3 The locking in the driver is done via the global cli/sti lock. This 4 makes for relatively poor SMP performance. Switching this to use a 5 per device spin lock would probably materially improve performance. 6 </p></dd><dt><span class="term">Occasional Failures</span></dt><dd><p> 7 We have reports of occasional failures when run for very long 8 periods of time and the driver starts to receive junk frames. At 9 the moment the cause of this is not clear. 10 </p></dd></dl></div><p> 11 12 </p></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="Porting_The_Z8530_Driver.html">Prev</a> </td><td width="20%" align="center"> </td><td width="40%" align="right"> <a accesskey="n" href="pubfunctions.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 7. Porting The Z8530 Driver </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> Chapter 9. Public Functions Provided</td></tr></table></div></body></html> 13