I am running 23k8r2 7601 (sp1 build) on my asus laptop with 16gb memory. The lapop runs just fine for days without a restart, where as w2k8r2 restarts sporadically atleast once in 36hrs or so. I did use whocrashed but it wasnt of much help as it wasnt able to single out the driver issue On Tue 8/2/2011 3:56:55 AM GMT your computer crashed crash dump file: C:\Windows\Minidump\080111-16582-01.dmp This was probably caused by the following module: ntoskrnl.exe (nt+0x7FD00) Bugcheck code: 0xC00002CB (0xFFFFF8A000300C10, 0xFFFFFFFFC00002E1, 0x0, 0x0) Error: CUSTOM_ERROR file path: C:\Windows\system32\ntoskrnl.exe product: Microsoft® Windows® Operating System company: Microsoft Corporation description: NT Kernel & System The crash took place in the Windows kernel. Possibly this problem is caused by another driver which cannot be identified at this time. On Tue 8/2/2011 3:56:55 AM GMT your computer crashed crash dump file: C:\Windows\memory.dmp This was probably caused by the following module: ntkrnlmp.exe (nt!KeBugCheckEx+0x0) Bugcheck code: 0xC00002CB (0xFFFFF8A000300C10, 0xFFFFFFFFC00002E1, 0x0, 0x0) Error: CUSTOM_ERROR The crash took place in the Windows kernel. Possibly this problem is caused by another driver which cannot be identified at this time. On Mon 8/1/2011 11:59:36 PM GMT your computer crashed crash dump file: C:\Windows\Minidump\080111-18891-01.dmp This was probably caused by the following module: ntoskrnl.exe (nt+0x7FD00) Bugcheck code: 0xC00002E2 (0xFFFFF8A00061F450, 0xFFFFFFFFC000018E, 0x0, 0x0) Error: CUSTOM_ERROR file path: C:\Windows\system32\ntoskrnl.exe product: Microsoft® Windows® Operating System company: Microsoft Corporation description: NT Kernel & System The crash took place in the Windows kernel. Possibly this problem is caused by another driver which cannot be identified at this time. Upon some research Im starting to feel its the ATI Radeon 5870 card that might be interfering with Hyper-V, but Im no guru in that space When time permits kindly help me out Thx Nitin

I would look at getting a "server" laptops are not built to function as full time equipment. Off the top of my head, you are probably overheating the system, laptops just do not do a good job of dumping heat for days on end with no break, the fans and cooling systems are not designed to perform like that. As the system overheats, you memory and onboard system cache will become impared and probably the results of your errors. Higher end latop video cards are heat monsters.:P Advice offered, If you need more help it is advised to seek the council and advice of paid professionals. The answer is always 42, or reboot.

I periodically monitor the temperature thru CPUThermometer. I also tried disabling the turbo boost for i7. But The same system runs on W7 flawlessly. The problem occurs whenever I shutdown as well. Work around: while powering up i press f8 and select disable driver signature enforcement

Hello, please use Microsoft Skydrive to upload dump files (c:\windows\minidumps) and post a link here. Normally this forum is not for debugging but I will do that for you. You can also contact Microsoft CSS. This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Microsoft Student Partner 2010 / 2011 Microsoft Certified Professional Microsoft Certified Systems Administrator: Security Microsoft Certified Systems Engineer: Security Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Applications Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows 7, Configuring Microsoft Certified IT Professional: Enterprise Administrator

Hi, Besides the above suggestions, if you need further assistance, we may have to analyze memory dump file to narrow down the cause of this issue. Forum is not the best place for analyzing dump. It’s suggested to contact Microsoft Customer Support Services (CSS) so that a dedicated Support Professional can help you on this issue. To obtain the phone numbers for specific technology request please take a look at the web site listed below. http://support.microsoft.com/default.aspx?scid=fh;EN-US;PHONENUMBERS If you are outside the US please see http://support.microsoft.com for regional support phone numbers. Regards, Bruce Forum Support Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

to find the root cause for the behavior you have posted above a memory dump file should be examined. http://support.microsoft.com/kb/315263 and http://support.microsoft.com/kb/254649 However, if all of these steps do not work, an analysis of the crash dump file may be needed. To trouble shoot this problem efficiently, I suggest that you speak directly with a Microsoft Support Professional so that the crash dump can be analyzed. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, please go to the following address on the World Wide Web: http://support.microsoft.com/directory/overview.asp Thank you for your understanding and I hope this will be resolved soon.http://www.virmansec.com/blogs/skhairuddin

Here it is https://skydrive.live.com/redir.aspx?cid=b5881df27f02751c&resid=B5881DF27F02751C!1841 Im going to give another few days before opening a ticket with css. TIA!

Thanks Bruce. Im going to give a few more days before opening an incident with Microsoft CSS

******************************************************************************* * * * Bugcheck Analysis * * * ******************************************************************************* Unknown bugcheck code (c00002e2) Unknown bugcheck description Arguments: Arg1: fffff8a0000a3c10 Arg2: ffffffffc000018e Arg3: 0000000000000000 Arg4: 0000000000000000 Debugging Details: ------------------ CUSTOMER_CRASH_COUNT: 1 DEFAULT_BUCKET_ID: DRIVER_FAULT_SERVER_MINIDUMP BUGCHECK_STR: 0xC00002E2 PROCESS_NAME: lsass.exe CURRENT_IRQL: 0 LAST_CONTROL_TRANSFER: from fffff8000292c83e to fffff800024d2d00 STACK_TEXT: fffff880`04fc64e8 fffff800`0292c83e : 00000000`0000004c 00000000`c00002e2 fffff880`04fc6608 fffffa80`0da10e30 : nt!KeBugCheckEx fffff880`04fc64f0 fffff800`027192c1 : fffffa80`0d5b6ca4 fffff880`04fc6ca0 00000000`00000100 fffffa80`0ceb7980 : nt!PoShutdownBugCheck+0xae fffff880`04fc6570 fffff800`0251f7cd : 00000000`00000000 00000000`00000002 00000000`00000000 00000000`001df601 : nt!ExpSystemErrorHandler2+0x5e1 fffff880`04fc67a0 fffff800`028ff4a1 : 00000000`c00002e2 00000000`00000002 00000000`00000001 fffff880`04fc6b58 : nt!ExpSystemErrorHandler+0xdd fffff880`04fc67e0 fffff800`02901223 : 00000000`c00002e2 fffffa80`00000002 fffff8a0`00000001 fffff880`04fc6b58 : nt!ExpRaiseHardError+0xe1 fffff880`04fc6b10 fffff800`024d1f93 : fffffa80`0e03ab60 00000000`00000001 00000000`001df628 fffff800`027c9bc4 : nt!NtRaiseHardError+0x1a1 fffff880`04fc6bb0 00000000`76ff264a : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : nt!KiSystemServiceCopyEnd+0x13 00000000`001df608 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : 0x76ff264a STACK_COMMAND: kb FOLLOWUP_IP: nt!ExpSystemErrorHandler2+5e1 fffff800`027192c1 cc int 3 SYMBOL_STACK_INDEX: 2 SYMBOL_NAME: nt!ExpSystemErrorHandler2+5e1 FOLLOWUP_NAME: MachineOwner MODULE_NAME: nt IMAGE_NAME: ntkrnlmp.exe DEBUG_FLR_IMAGE_TIMESTAMP: 4d9fdd5b FAILURE_BUCKET_ID: X64_0xC00002E2_nt!ExpSystemErrorHandler2+5e1 BUCKET_ID: X64_0xC00002E2_nt!ExpSystemErrorHandler2+5e1 Followup: MachineOwner --------- ------------------------------------------------------- The BSOD occured when lsass.exe was running. Please perform a full scan on your disks to identify and uninstall malware programs. Also, update all possible drivers as I have seen drivers that have not been updated since 2009. You can also contact Microsoft CSS for more information. This posting is provided "AS IS" with no warranties or guarantees , and confers no rights. Microsoft Student Partner 2010 / 2011 Microsoft Certified Professional Microsoft Certified Systems Administrator: Security Microsoft Certified Systems Engineer: Security Microsoft Certified Technology Specialist: Windows Server 2008 Active Directory, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Network Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows Server 2008 Applications Infrastructure, Configuration Microsoft Certified Technology Specialist: Windows 7, Configuring Microsoft Certified IT Professional: Enterprise Administrator Microsoft Certified IT Professional: Server Administrator