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