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 181 <tr bgcolor=#666699><td><font size=2 color=#ffffff><b>SRDB ID</b></font></td>
 182 <td bgcolor=#ffffff><font size=2>&nbsp;</font></td>
 183 <td><font size=2 color=#ffffff><b>Synopsis</b></font></td>
 184 <td bgcolor=#ffffff><font size=2>&nbsp;</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>&nbsp;</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>&nbsp;</font></td>
 191 <td><font size=2><b>4 Sep 1999</b></font></td>
 192 </tr>
 193 </table><br clear>
 194 <table width=100%><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
 198 there are messages like 'synchronisation lost', 'Previous time adjustment
 199 didn''t complete' and 'time reset (step)' a lot in the /var/adm/messages
 200 file. The system either was previously working fine with the freeware
 201 xntpd or the configuration was copied from another system that was
 202 using the freeware version.
 203 -- 23-Apr-99 08:22 US/Eastern --</pre><table width=100%><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
 207 the freeware version included the warning to set the
 208 kernel variable <font color=red>dosynctodr</font> to 0 in the /etc/system
 209 file thus: set <font color=red>dosynctodr</font>=0
 210
 211 When using NTP on Solaris 2.6 or later, the kernel
 212 variable MUST be left at the default value of 1. Prior
 213 to 2.6 this variable controlled whether or not to rein
 214 in the softclock using the hardware clock, with the result
 215 that NTP and the hardware clock would fight for control of
 216 the soft clock; thus before 2.6 you had to set <font color=red>dosynctodr</font>
 217 to 0. At 2.6, every system call that adjusts the softclock
 218 also sets the hard clock, thus while NTP controls the soft
 219 clock, the hard clock is also controlled. Setting
 220 <font color=red>dosynctodr</font> to 0 reverts the behavior back to the pre 2.6
 221 defaulkt behavior, having exactly the opposite effect
 222 as that intended.
 223
 224 Do not set <font color=red>dosynctodr</font> to 0.</pre><table width=100%>
 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
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