Windows Server 2008 R2 Reboots Unexpectedly
I have a Windows Server 2008 R2 that has unexpectedly rebooted twice. I have looked for a memory dump, but there is't one. There are only two entries in the Event Viewer that indicated the host rebooted. The Even Log online help doesn't have any information on this event. How can I track down what is causing this host to reboot? I've run hardware diags on the host and everything comes back clean. Event ID: 6008 Source: EventLog Event ID: 41 Source Kernel-Power BODY{font:x-small 'Verdana';margin-right:1.5em} .c{cursor:hand} .b{color:red;font-family:'Courier New';font-weight:bold;text-decoration:none} .e{margin-left:1em;text-indent:-1em;margin-right:1em} .k{margin-left:1em;text-indent:-1em;margin-right:1em} .t{color:#990000} .xt{color:#990099} .ns{color:red} .dt{color:green} .m{color:blue} .tx{font-weight:bold} .db{text-indent:0px;margin-left:1em;margin-top:0px;margin-bottom:0px;padding-left:.3em;border-left:1px solid #CCCCCC;font:small Courier} .di{font:small Courier} .d{color:blue} .pi{color:blue} .cb{text-indent:0px;margin-left:1em;margin-top:0px;margin-bottom:0px;padding-left:.3em;font:small Courier;color:#888888} .ci{font:small Courier;color:#888888} PRE{margin:0px;display:inline} <script><!-- function f(e){ if (e.className=="ci"){if (e.children(0).innerText.indexOf("\n")>0) fix(e,"cb");} if (e.className=="di"){if (e.children(0).innerText.indexOf("\n")>0) fix(e,"db");} e.id=""; } function fix(e,cl){ e.className=cl; e.style.display="block"; j=e.parentElement.children(0); j.className="c"; k=j.children(0); k.style.visibility="visible"; k.href="#"; } function ch(e){ mark=e.children(0).children(0); if (mark.innerText=="+"){ mark.innerText="-"; for (var i=1;i<e.children.length;i++) e.children(i).style.display="block"; } else if (mark.innerText=="-"){ mark.innerText="+"; for (var i=1;i<e.children.length;i++) e.children(i).style.display="none"; }} function ch2(e){ mark=e.children(0).children(0); contents=e.children(1); if (mark.innerText=="+"){ mark.innerText="-"; if (contents.className=="db"||contents.className=="cb") contents.style.display="block"; else contents.style.display="inline"; } else if (mark.innerText=="-"){ mark.innerText="+"; contents.style.display="none"; }} function cl(){ e=window.event.srcElement; if (e.className!="c"){e=e.parentElement;if (e.className!="c"){return;}} e=e.parentElement; if (e.className=="e") ch(e); if (e.className=="k") ch2(e); } function ex(){} function h(){window.status=" ";} document.onclick=cl; --></script> - < Event xmlns =" http://schemas.microsoft.com/win/2004/08/events/event " > - < System > < Provider Name =" Microsoft-Windows-Kernel-Power " Guid =" {331C3B3A-2005-44C2-AC5E-77220C37D6B4} " /> < EventID > 41 </ EventID > < Version > 2 </ Version > < Level > 1 </ Level > < Task > 63 </ Task > < Opcode > 0 </ Opcode > < Keywords > 0x8000000000000002 </ Keywords > < TimeCreated SystemTime =" 2010-06-04T10:22:13.788409300Z " /> < EventRecordID > 16251 </ EventRecordID > < Correlation /> < Execution ProcessID =" 4 " ThreadID =" 8 " /> < Channel > System </ Channel > < Computer > SGP2RYC11S03.hosting </ Computer > < Security UserID =" S-1-5-18 " /> </ System > - < EventData > < Data Name =" BugcheckCode " > 0 </ Data > < Data Name =" BugcheckParameter1 " > 0x0 </ Data > < Data Name =" BugcheckParameter2 " > 0x0 </ Data > < Data Name =" BugcheckParameter3 " > 0x0 </ Data > < Data Name =" BugcheckParameter4 " > 0x0 </ Data > < Data Name =" SleepInProgress " > false </ Data > < Data Name =" PowerButtonTimestamp " > 0 </ Data > </ EventData > </ Event >
June 5th, 2010 12:38am

Hi, As there is no dump file generated after the system restart, the cause of the issue could be hardware issue or power failure. As a result, I suggest that you involve hardware vendor to check the issue. To narrow down the cause, we can disable the Automatic Restart feature on the server: AutoReboot http://technet.microsoft.com/en-us/library/cc976049.aspx Note: Please also temporarily disable other similar services such as HP ProLiant System Shutdown Service if they are installed on the server. After we disable the feature, the server will not restart automatically and therefore we will see the blue screen if it is really a blue screen stop.This posting is provided "AS IS" with no warranties, and confers no rights.
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June 7th, 2010 8:37am

Hi, There is also a KB article for this issue: Windows Kernel event ID 41 error in Windows 7 or in Windows Server 2008 R2: “The system has rebooted without cleanly shutting down first” http://support.microsoft.com/kb/2028504This posting is provided "AS IS" with no warranties, and confers no rights.
June 8th, 2010 11:01am

Yeah, I was wondering if it might be power related. I'll see if disabling Automatic Restart helps expose what might be going on. Thanks.
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June 10th, 2010 8:54pm

Hi, Thanks for your response. If you need any further assistance from our side, please feel free to respond back. This posting is provided "AS IS" with no warranties, and confers no rights.
June 11th, 2010 4:43am

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