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165 location.href = ctl.options[ctl.selectedIndex].value; 166 } 167 // End hiding contents --> 168 </SCRIPT> 169<a name="top"> 170<form name="docform"><div align=center><font size=2> Jump to <select name="jumplist" size=1 onchange="jump();"></font><option value="#Hardware">Hardware</option> 171<option value="#Product">Product</option> 172<option value="#Product-Area">Product Area</option> 173<option value="#Synopsis">Synopsis</option> 174<option value="#Problem-Description">Problem Description</option> 175<option value="#Document-Content">Document Content</option> 176<option value="#Problem-Solution">Problem Solution</option> 177<option value="#SRDB-ID">SRDB ID</option> 178<option value="#OS">OS</option> 179</select></div></form> 180<table width=100% cellpadding=2 cellspacing=0 border=0> 181<tr bgcolor=#666699><td><font size=2 color=#ffffff><b>SRDB ID</b></font></td> 182<td bgcolor=#ffffff><font size=2> </font></td> 183<td><font size=2 color=#ffffff><b>Synopsis</b></font></td> 184<td bgcolor=#ffffff><font size=2> </font></td> 185<td><font size=2 color=#ffffff><b>Date</b></font></td> 186</tr> 187<tr bgcolor=#CCCCE7><td><font size=2><b>19195</b></font></td> 188<td bgcolor=#ffffff><font size=2> </font></td> 189<td><font size=2><b>Upgraded to 2.6, using xntpd, but the system clock is drifting. Worked fine</b></font></td> 190<td bgcolor=#ffffff><font size=2> </font></td> 191<td><font size=2><b>4 Sep 1999</b></font></td> 192</tr> 193</table><br clear> 194<table width=100% cellpadding=2 cellspacing=0 border=0><tr bgcolor=#999999> 195<td><font size=2 color=#ffffff><b><a name=Problem-Description>Problem Description</a></b></font></td> 196<td align=right><b><a href="#top"><font size=2 color=#ffffff>Top</font></a></b></td></tr></table> 197<pre>Ever since upgrading to Solaris 2.6, the system clock has been drifting and 198there are messages like 'synchronisation lost', 'Previous time adjustment 199didn''t complete' and 'time reset (step)' a lot in the /var/adm/messages 200file. The system either was previously working fine with the freeware 201xntpd or the configuration was copied from another system that was 202using the freeware version. 203-- 23-Apr-99 08:22 US/Eastern --</pre><table width=100% cellpadding=2 cellspacing=0 border=0><tr bgcolor=#999999> 204<td><font size=2 color=#ffffff><b><a name=Problem-Solution>Problem Solution</a></b></font></td> 205<td align=right><b><a href="#top"><font size=2 color=#ffffff>Top</font></a></b></td></tr></table> 206<pre>The common lore for setting up xntpd on Solaris using 207the freeware version included the warning to set the 208kernel variable <font color=red>dosynctodr</font> to 0 in the /etc/system 209file thus: set <font color=red>dosynctodr</font>=0 210 211When using NTP on Solaris 2.6 or later, the kernel 212variable MUST be left at the default value of 1. Prior 213to 2.6 this variable controlled whether or not to rein 214in the softclock using the hardware clock, with the result 215that NTP and the hardware clock would fight for control of 216the soft clock; thus before 2.6 you had to set <font color=red>dosynctodr</font> 217to 0. At 2.6, every system call that adjusts the softclock 218also sets the hard clock, thus while NTP controls the soft 219clock, the hard clock is also controlled. Setting 220<font color=red>dosynctodr</font> to 0 reverts the behavior back to the pre 2.6 221defaulkt behavior, having exactly the opposite effect 222as that intended. 223 224Do not set <font color=red>dosynctodr</font> to 0.</pre><table width=100% cellpadding=2 cellspacing=0 border=0> 225<tr><td bgcolor=#999999 valign=top width=25%><font color=#ffffff size=2><b><a name=Product-Area>Product Area</a></b></font></td> 226<td bgcolor=#cccccc valign=top width=75%><font size=2>Bundled Network</font></td></tr> 227<tr><td bgcolor=#999999 valign=top width=25%><font color=#ffffff size=2><b><a name=Product>Product</a></b></font></td> 228<td bgcolor=#cccccc valign=top width=75%><font size=2>NTP</font></td></tr> 229<tr><td bgcolor=#999999 valign=top width=25%><font color=#ffffff size=2><b><a name=OS>OS</a></b></font></td> 230<td bgcolor=#cccccc valign=top width=75%><font size=2>Solaris 2.6</font></td></tr> 231<tr><td bgcolor=#999999 valign=top width=25%><font color=#ffffff size=2><b><a name=Hardware>Hardware</a></b></font></td> 232<td bgcolor=#cccccc valign=top width=75%><font size=2>Ultra 2</font></td></tr> 233<tr><td bgcolor=#999999 valign=top width=25%><font color=#ffffff size=2><b><a name=Document-Content>Document Content</a></b></font></td> 234<td bgcolor=#cccccc valign=top width=75%><font size=2>with freeware xntpd.</font></td></tr> 235</table><br clear> 236<font size=2><a href="#top">Top</a></font><br><br> 237</td></tr></table> 238 239 <!-- =================== --> 240 <!-- END OF MAIN CONTENT --> 241 <!-- =================== --> 242 <!--stopindex--> 243 244 <!-- DON'T CHANGE INFORMATION OTHER THAN titlebar BELOW THIS LINE --> 245 246 <!-- Altered Table Structure from Template to format properly with new design --> 247 </TD> 248 </TR> 249 <TR> 250 <TD> </TD> 251 <TD VALIGN="top"> 252 <center> 253 <IMG SRC="/images/cg_grey_line.gif" ALT="" WIDTH="466" HEIGHT="2" BORDER="0"><BR> 254 <IMG SRC="/images/cg_clear.gif" ALT="" WIDTH="1" HEIGHT="2" BORDER="0" HSPACE="0" VSPACE="4"> 255 </center> 256 <CENTER> 257 <FONT FACE="Geneva, Helvetica, Arial, SunSans-Regular" SIZE="2"> 258 [ <A HREF="edit-user-form.pl?viewmode=contractuser">Edit Account</A> ] 259 [ <A HREF="show.pl?target=patches/patch-access">Patches</A> ] 260 [ <A HREF="suncourier.pl">Submit a Service Order</A> ]<br> 261 [ <A HREF="show.pl?target=resources/tools">Diagnostic Tools</A> ] 262 [ <A HREF="show.pl?target=help/collections">Support Docs.</A> ] 263 [ <A HREF="show.pl?target=resources/y2k">Y2K Central</A> ] 264 [ <A HREF="show.pl?target=security/sec">Security Information</A> ] <br> 265 [ <A HREF="show.pl?target=link">SunSolve Servers </A> ] 266 [ <A HREF="show.pl?target=about_sunsolve">About SunSolve</A> ] 267 [ <A HREF="feedback.pl">Contact Us</A> ] 268 [ <A HREF="show.pl?target=help/sitemap">Site Map</A> ] 269 [ <A HREF="show.pl?target=article/article">Articles</A> ] 270 [ <A HREF="show.pl?target=home_con">Home</A> ] 271 [ <A HREF="show.pl?target=help/faq">Help</A> ] 272 </FONT> 273 </CENTER> 274 275<!-- MAPS --> 276<MAP NAME="lefttop"> 277<AREA SHAPE="rect" HREF="http://www.sun.com/MySun/" ALT="My Sun" COORDS="89,0 149,32"> 278<AREA SHAPE="rect" HREF="show.pl?target=home_con" ALT="Home" COORDS="0,0 42,32"> 279<AREA SHAPE="rect" HREF="http://www.sun.com/sales/" ALT="Buy" COORDS="54,0 78,32"> 280</MAP> 281 282 283<MAP NAME="topnav"> 284<AREA SHAPE="rect" HREF="http://www.sun.com/java/" ALT="Java Technologies" COORDS="4,0,67,32"> 285<AREA SHAPE="rect" HREF="http://www.sun.com/products-n-solutions/" ALT="Products and Solutions" COORDS="74,0,141,32"> 286<AREA SHAPE="rect" HREF="http://www.sun.com/service/" ALT="Support, Education, and Consulting" COORDS="148,0,249,32"> 287<AREA SHAPE="rect" HREF="http://www.sun.com/tech/" ALT="Technology and Research" COORDS="261,0,324,32"> 288<AREA SHAPE="rect" HREF="http://www.sun.com/developers/developers.html" ALT="For Developers" COORDS="334,0,396,32"> 289<AREA SHAPE="rect" HREF="http://www.sun.com/corporateoverview/" ALT="Corporate Information" COORDS="406,0,482,32"> 290</MAP> 291 292<!-- INSERT titlebar HREFS BELOW --> 293<MAP NAME="titlebar"> 294<!-- LINK TO SEC HOME Removed because no longer needed on this template --> 295<AREA SHAPE="rect" HREF="/visual/home/" ALT="SunSolve Online(tm)" COORDS="0,21,215,51"> <!-- LINK TO CURRENT PILL HOME --> 296</MAP> 297 298 299<!-- begin copyright notice --> 300 301<BR> 302<CENTER> 303<FONT FACE="Geneva, Helvetica, Arial, SunSans-Regular" COLOR="#999999" SIZE="2"> 304<br> 305Copyright 1994-1999 Sun Microsystems, Inc., 901 San Antonio Road, Palo Alto, CA 94303 USA. 306<br> 307All rights reserved. 308<a href="http://www.sun.com/share/text/SMICopyright.html">Legal Terms</a>. 309<a href="http://www.sun.com/privacy/">Privacy Policy</a>. 310</font> 311</CENTER> 312 313<!-- end copyright notice --> 314 315 </TD> 316 </TR> 317</TABLE> 318 319</BODY> 320</HTML> 321 322
