Common scenario test for network failed in intel environment

Hi,

I hit some problems when running WHQL common scenario test for network
device on my windows pv network driver, and my windows pv network driver
is based on Xen. The WLK version i use is 1.5.7565.000, the windows
virtual guest is Srv2008 R2 x64 with 4G memory, 4cpus and 50G system disks.

After the Srv2008 R2 vm is hibernated/waked up for several times, it
BSOD with error code 0x3B, or 0x19 caused by ntkrnlmp.exe, or NTFS.sys
etc. I tried to debug this issue with windbg and found all devices on
the vm were resumed successfully, and the network cards started to
send/receive packets properly, and then the VM BSOD suddenly before this
test case start to disable/enable network cards.

However, it seems test result is connected with cpu type and cpu number.
I run this test in both AMD and Intel environment installed with Oracle
VM Server 2.2.x, and got different results. Following is the test results:

machines 1cpu 4cpu
AMD pass pass
Intel pass BSOD

Furthermore, Srv2008 R1 x64 with 4G memory, 4cpus passed this test case
successfully.
I have worked on this issue for several days, but failed to figure out
the root cause. So would you like to help me on this issue? Any help is
appreciated.

Following is the dump information:
*** Fatal System Error: 0x0000003b

(0x00000000C0000005,0xFFFFF800014D0105,0xFFFFF88004FEDE00,0x0000000000000000)

Break instruction exception - code 80000003 (first chance)

A fatal system error has occurred.
Debugger entered on first try; Bugcheck callbacks have not been invoked.

A fatal system error has occurred.

Connected to Windows 7 7600 x64 target at (Wed Apr 21 10:53:42.890 2010
(GMT-7)), ptr64 TRUE
Loading Kernel Symbols

Press ctrl-c (cdb, kd, ntsd) or ctrl-break (windbg) to abort symbol
loads that take too long.
Run !sym noisy before .reload to track down problems loading symbols.

.

Loading User Symbols

Loading unloaded module list

SYMSRV:
c:\windows\websymbols*http"//msdl.microsoft.com/download/symbols needs a
downstream store
Unable to enumerate user-mode unloaded modules, Win32 error 0n30
*******************************************************************************
*
*
* Bugcheck
Analysis *
*
*
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck 3B, {c0000005, fffff800014d0105, fffff88004fede00, 0}

*************************************************************************
*** ***
*** ***
*** Your debugger is not using the correct symbols ***
*** ***
*** In order for this command to work properly, your symbol path ***
*** must point to .pdb files that have full type information. ***
*** ***
*** Certain .pdb files (such as the public OS symbols) do not ***
*** contain the required information. Contact the group that ***
*** provided you with these symbols if you need this command to ***
*** work. ***
*** ***
*** Type referenced: kernel32!pNlsUserInfo ***
*** ***
*************************************************************************
*************************************************************************
*** ***
*** ***
*** Your debugger is not using the correct symbols ***
*** ***
*** In order for this command to work properly, your symbol path ***
*** must point to .pdb files that have full type information. ***
*** ***
*** Certain .pdb files (such as the public OS symbols) do not ***
*** contain the required information. Contact the group that ***
*** provided you with these symbols if you need this command to ***
*** work. ***
*** ***
*** Type referenced: kernel32!pNlsUserInfo ***
*** ***
*************************************************************************
Probably caused by : ntkrnlmp.exe (
nt!ExpInterlockedPopEntrySListFault16+0 )

Followup: MachineOwner

nt!DbgBreakPointWithStatus:
fffff800`014c4f60 cc int 3
3: kd> .load
No extension DLL name provided
3: kd> .reload
Connected to Windows 7 7600 x64 target at (Wed Apr 21 12:13:02.812 2010
(GMT-7)), ptr64 TRUE
Loading Kernel Symbols


Loading User Symbols

Loading unloaded module list
…Unable to enumerate user-mode unloaded modules,
Win32 error 0n30
3: kd> !thread
THREAD fffffa8004d2c680 Cid 02a4.0dfc Teb: 000007fffffd6000
Win32Thread: 0000000000000000 RUNNING on processor 3
Not impersonating
DeviceMap fffff8a000d98960
Owning Process fffffa8004de95f0 Image: svchost.exe
Attached Process N/A Image: N/A
Wait Start TickCount 156102 Ticks: 0
Context Switch Count 9
UserTime 00:00:00.000
KernelTime 00:00:00.000
Win32 Start Address ntdll!TppWorkerThread (0x00000000778a8f00)
Stack Init fffff88004feedb0 Current fffff88004fee7d0
Base fffff88004fef000 Limit fffff88004fe9000 Call 0
Priority 9 BasePriority 8 UnusualBoost 0 ForegroundBoost 0 IoPriority 2
PagePriority 5
Child-SP RetAddr : Args to
Child : Call Site
fffff88004fecdc8 fffff800015c26d2 : 00000000c0000005 fffffa8004d2c680 0000000000000065 fffff8000150b314 :
nt!DbgBreakPointWithStatus
fffff88004fecdd0 fffff800015c34be : fffff88000000003 0000000000000000 fffff80001507ee0 000000000000003b :
nt!KiBugCheckDebugBreak+0x12
fffff88004fece30 fffff800014cd004 : fffffa8000000008 fffffa80050b6b40 fffffa80050b6b40 0000000000000000 : nt!KeBugCheck2+0x71e
fffff88004fed500 fffff800014cc469 : 000000000000003b 00000000c0000005 fffff800014d0105 fffff88004fede00 :
nt!KeBugCheckEx+0x104
fffff88004fed540 fffff800014cbdbc : fffff88004fee5a8 fffff88004fede00 0000000000000000 fffff800014fb450 :
nt!KiBugCheckDispatch+0x69
fffff88004fed680 fffff800014f2bed : fffff800016d5d18 fffff8000161388c fffff8000145b000 fffff88004fee5a8 :
nt!KiSystemServiceHandler+0x7c
fffff88004fed6c0 fffff800014fa250 : fffff8000161b1e8 fffff88004fed738 fffff88004fee5a8 fffff8000145b000 :
nt!RtlpExecuteHandlerForException+0xd
fffff88004fed6f0 fffff800015071b5 : fffff88004fee5a8 fffff88004fede00 fffff88000000000 0000000000000001 :
nt!RtlDispatchException+0x410
fffff88004feddd0 fffff800014cc542 : fffff88004fee5a8 000000000000000c fffff88004fee650 fffff88001ee2900 :
nt!KiDispatchException+0x135
fffff88004fee470 fffff800014cae4a : 0000000000000000 0000000000000000 0000000000000000 0000000000000000 :
nt!KiExceptionDispatch+0xc2
fffff88004fee650 fffff800014d0105 : 000000000000000c fffff800015ff646 fffff8a001984030 0000000000000008 :
nt!KiGeneralProtectionFault+0x10a (TrapFrame @ fffff88004fee650) fffff88004fee7e0 fffff800015ff646 : fffff8a001984030
0000000000000008 fffff88004fee8e0 fffffa800337fa00 : nt!ExpInterlockedPopEntrySListFault16 fffff88004fee7f0 fffff8000179dd47 : fffff8a000000003
000000000000000c 0000000000000293 fffff8000195fdfe : nt!ExAllocatePoolWithTag+0x276 fffff88004fee8e0 fffff80001496419 : 0000000000000000
0000000000020001 fffffa8000000001 fffff88004feeaa0 : nt!SeCaptureSecurityDescriptor+0x502 fffff88004fee9c0 fffff80001496b17 : 00000000002a6530
0000000000000000 0000000000000574 fffff8a000020000 : nt!SeAccessCheckByType+0x368 fffff88004feeb40 fffff800014cc153 : 0000000000000000
0000000001dde240 0000000000000011 00000000002a6530 : nt!NtAccessCheck+0x57 fffff88004feebb0 00000000778e04fa : 000007fefdb55cbb
0000000000217ea0 0000000000217cf0 0000000000000000 : nt!KiSystemServiceCopyEnd+0x13 (TrapFrame @ fffff88004feec20)
000000000190eab8 000007fefdb55cbb : 0000000000217ea0 0000000000217cf0 0000000000000000 0000000000000000 :
ntdll!NtAccessCheck+0xa
000000000190eac0 000007fefdc818a6 : 00000000002102a8 00000000778dcef4 0000000000000000 000007fefdf1fa51 :
KERNELBASE!AccessCheck+0x3b
000000000190eb20 000007fefb1b229c : 0000000000000000 0000000000000001 0000000000000000 00d50104100000d4 :
ADVAPI32!AccessCheckStub+0x36
000000000190eb70 000007fefb1b21e1 : 0000000000000000 000000000190ec88 0000000000000574 00000000778be65a :
mpssvc!FwAPIsIsAccessGranted+0x6c
000000000190ec00 000007fefb1b2343 : 0000000000000000 0000000000000000 0000000000000001 0000000001d56b70 :
mpssvc!FwRpcAPIsIsAccessGranted+0x7d
000000000190ec40 000007fefb1b3a9c : 0000000000000000 0000000000000000 0000000000000009 0000000001d56b70 :
mpssvc!FwRpcAPIsSecModeAccessCheckForClient+0x64
000000000190ec80 000007fefb1b3a0f : 0000000000000009 000000000190eda0 000000000190f198 000007fefdf1f7a1 :
mpssvc!RPC_Hlp_FWGetConfig+0x7c
000000000190ecf0 000007fefdf2c7f5 : 0000000001d56b70 0000000001dde240 0000000000000011 0000000000000001 :
mpssvc!RPC_FWGetConfig+0x4f
000000000190ed50 000007fefdfdb62e : 0000000000000009 000000000000000a 000007fefb240450 0000000001d56cc0 : RPCRT4!Invoke+0x65
000000000190ede0 000007fefdf24070 : 0000000000000000 0000000000000000 0000000001dc6e60 0000000089090080 :
RPCRT4!Ndr64StubWorker+0x61b
000000000190f3a0 000007fefdf29c24 : 0000000000000001 00000000778b537e 0000000000000000 0000000000000000 :
RPCRT4!NdrServerCallAll+0x40
000000000190f3f0 000007fefdf29d86 : 00000000002104e8 000000000021026c 000000000190f5a0 00750000000280a8 :
RPCRT4!DispatchToStubInCNoAvrf+0x14
000000000190f420 000007fefdf2a479 : 0000000000000000 000007fefdf2445d 0000000000000073 0000000001d56b70 :
RPCRT4!RPC_INTERFACE::DispatchToStubWorker+0x146
000000000190f540 000007fefdf2a11d : 00000000002de120 0000000001d0d800 000007fefdf00000 00000000002c8240 :
RPCRT4!LRPC_SCALL::DispatchRequest+0x149
000000000190f620 000007fefdf37ddf : 0000000000030000 0000000000297580 0000000000000000 0000000000000003 :
RPCRT4!LRPC_SCALL::HandleRequest+0x20d
000000000190f750 000007fefdf37995 : 0000000000000000 0000000000000000 0000000000297680 0000000000000000 :
RPCRT4!LRPC_ADDRESS::ProcessIO+0x3bf
000000000190f890 00000000778ab43b : 0000000000000000 0000000000000000 0000000001d38788 0000000000000000 :
RPCRT4!LrpcIoComplete+0xa5
000000000190f920 00000000778a923f : 0000000000000000 0000000000000000 000000000000ffff 0000000000000000 :
ntdll!TppAlpcpExecuteCallback+0x26b
000000000190f9b0 000000007768f56d : 0000000000000000 0000000000000000 0000000000000000 0000000000000000 :
ntdll!TppWorkerThread+0x3f8
000000000190fcb0 00000000778c3281 : 0000000000000000 0000000000000000 0000000000000000 0000000000000000 :
kernel32!BaseThreadInitThunk+0xd
000000000190fce0 0000000000000000 : 0000000000000000 0000000000000000 0000000000000000 0000000000000000 :
ntdll!RtlUserThreadStart+0x1d

Thanks
Annie.

More stack info:

*3: kd> !stacks*
Proc.Thread .Thread Ticks ThreadState Blocker

Max cache size is : 1048576 bytes (0x400 KB)
Total memory in cache : 0 bytes (0 KB)
Number of regions cached: 0
0 full reads broken into 0 partial reads
counts: 0 cached/0 uncached, 0.00% cached
bytes : 0 cached/0 uncached, 0.00% cached
** Prototype PTEs are implicitly decoded
[fffffa80033cc040 System]
SYMSRV:
c:\windows\websymbols*http"//msdl.microsoft.com/download/symbols needs a
downstream store
4.000020 fffffa80033dd040 fffd9ed9 Blocked
Ntfs!NtfsAcquireScbForLazyWrite+0x133
4.000030 fffffa80033deb60 fffd9e3b ??? Ntfs!NtfsFcbTableCompare
4.000078 fffffa80033e7ae0 fffd9ee5 Blocked
nt!ViKeTrimWorkerThreadRoutine+0x1e
4.00007c fffffa80033e7600 fffdf04f Blocked
nt!ViPoolDelayFreeTrimThreadRoutine+0x29
4.000080 fffffa80033e7120 fffda5b0 Blocked
nt!ViPoolDelayFreeTrimThreadRoutine+0x29
4.000084 fffffa80033e9b60 ffffff84 Blocked
nt!ViPendingWorkerThread+0x20
4.000088 fffffa80033e9680 ffffff84 Blocked
nt!ViPendingWorkerThread+0x20
4.00008c fffffa80033e91a0 ffffff84 Blocked
nt!ViPendingWorkerThread+0x20
4.000090 fffffa80033ebb60 ffffff84 Blocked
nt!ViPendingWorkerThread+0x20
4.000094 fffffa80033eb680 ffffff84 Blocked
nt!ViPendingWorkerThread+0x20
4.000098 fffffa80033eb1a0 ffffff84 Blocked
nt!ViPendingWorkerThread+0x20
4.00009c fffffa80033edb60 ffffff84 Blocked
nt!ViPendingWorkerThread+0x20
4.0000a0 fffffa80033ed680 ffffff84 Blocked
nt!ViPendingWorkerThread+0x20
4.0000a8 fffffa80033ee530 fffe0bb7 Blocked
nt!MiModifiedPageWriter+0x5a
4.0000c8 fffffa80033f2380 fffd9e40 Blocked
nt!CcQueueLazyWriteScanThread+0x85
4.0000d8 fffffa8003e904c0 fffd9e40 Blocked nt!EtwpLogger+0xf2
4.0000dc fffffa8003ea1040 fffd9e40 Blocked nt!EtwpLogger+0xf2
4.0000e0 fffffa8003eaa260 fffd9e40 Blocked nt!EtwpLogger+0xf2
4.0000e4 fffffa8003ecbb60 fffd9e40 Blocked nt!EtwpLogger+0xf2
4.0000e8 fffffa8003ef25e0 ffffff6b Blocked nt!EtwpLogger+0xf2
4.0000ec fffffa8003efeb60 fffd9e40 Blocked nt!EtwpLogger+0xf2
4.0000f0 fffffa8003f00b60 fffdeca0 Blocked nt!EtwpLogger+0xf2
4.0000f4 fffffa8003f24b60 fffda5e7 Blocked
nt!WdipSemCheckTimeout+0x12c
4.0000f8 fffffa80033a1710 fffdf07c Blocked ACPI!ACPIWorkerThread+0x74
4.0000fc fffffa8003e1f540 fffdfab5 Blocked
ACPI!PciRootBusBiosMethodDispatcherOnResume+0x51
4.000100 fffffa8003e29950 fffddfb8 Blocked
xenpci!xenwatch_thread+0x88
4.000104 fffffa8003e29470 fffddfb2 Blocked xenpci!xb_read+0x123
4.00010c fffffa8003e2eb60 fffdf70d Blocked
xenpci!BalloonMemoryFunc+0x72
4.000110 fffffa8003f519b0 fffdee8c Blocked
NDIS!ndisThreadPoolTimerHandler+0x10c
4.000118 fffffa8003f97480 fffda05a Blocked NDIS!ndisCmWaitThread+0x6e
4.000124 fffffa800445eb60 fffff928 Blocked
blbdrive!BlbIoWorkerThread+0x33
4.000194 fffffa8004ab7ad0 ffffec86 Blocked
watchdog!SMgrGdiCalloutThread+0x4f
4.0001e0 fffffa8004af7b60 fffe737b Blocked nt!EtwpLogger+0xf2
*** WARNING: Unable to verify timestamp for msrpc.sys
*** ERROR: Module load completed but symbols could not be loaded for
msrpc.sys
4.000204 fffffa8004b02b60 fffddc7c Blocked
nt!IoRemoveIoCompletion+0x47
4.0002cc fffffa8004dbf040 fffdeb84 Blocked
luafv!SynchronousFsControl+0x216
4.000334 fffffa8004dfe060 ffffe8fe Blocked nt!EtwpLogger+0xf2
4.000344 fffffa8004e03660 fffdf07d Blocked nt!EtwpLogger+0xf2
4.000358 fffffa8004e03060 ffffe8f7 Blocked nt!EtwpLogger+0xf2
4.00035c fffffa8004e16b60 ffffe8f5 Blocked nt!EtwpLogger+0xf2
4.000410 fffffa8004a53040 ffffe585 Blocked
mpsdrv!IP6StringToAddress+0x512
4.000464 fffffa8004b0d040 fffdafd9 Blocked
HTTP!UlpScavengerThread+0x81
4.0006a4 fffffa8004f4d540 ffffe11c Blocked
srv2!SrvProcWorkerThread+0xf1
4.0006a8 fffffa8004f4f8f0 ffffe11b Blocked
srv2!SrvProcWorkerThread+0xf1
4.0006ac fffffa8004f4f2e0 ffffe11a Blocked
srv2!SrvProcWorkerThread+0xf1
4.0006b0 fffffa8004f50650 ffffe119 Blocked
srv2!SrvProcWorkerThread+0xf1
4.0006b4 fffffa8004f516f0 ffffe118 Blocked
srv2!SrvProcWorkerThread+0xf1
4.0006b8 fffffa8004f53540 ffffe117 Blocked
srv2!SrvProcWorkerThread+0xf1
4.0006bc fffffa8004f547e0 ffffe116 Blocked
srv2!SrvProcWorkerThread+0xf1
4.0006c0 fffffa8004f55950 ffffe115 Blocked
srv2!SrvProcWorkerThread+0xf1
4.0006c4 fffffa8004f56040 ffffe114 Blocked
srv2!SrvProcWorkerThread+0xf1
4.00044c fffffa8005021060 ffffd733 Blocked nt!EtwpLogger+0xf2
*** ERROR: Module load completed but symbols could not be loaded for
spsys.sys
4.0004dc fffffa800504f660 ffffd636 Blocked spsys+0x255b0
4.0008c0 fffffa8004dd0060 ffffb6ad Blocked nt!EtwpLogger+0xf2
4.000b88 fffffa80049d4b60 fffd9f01 Blocked
Ntfs!NtfsAcquireScbForLazyWrite+0x133
4.000978 fffffa8005116aa0 fffd9ed5 Blocked
Ntfs!NtfsAcquireSharedScbForTransaction+0x50

[fffffa8004471b30 smss.exe]

[fffffa8004aabb30 csrss.exe]
17c.0001a0 fffffa8004aca930 fffd9f85 Blocked
nt!AlpcpReceiveMessagePort+0x189
17c.0001c0 fffffa8004aacb60 fffda0e6 Blocked
nt!AlpcpReceiveMessagePort+0x189
17c.0004b8 fffffa8004b1a380 fffd9f12 Blocked
nt!AlpcpReceiveMessagePort+0x189
17c.000280 fffffa8004a1ab60 fffda10e Blocked
nt!AlpcpReceiveMessagePort+0x189

[fffffa8004ad59c0 wininit.exe]

[fffffa8004ad8b30 csrss.exe]

[fffffa8004af1b30 winlogon.exe]

[fffffa8004b42b30 services.exe]
224.000534 fffffa800482d990 fffda018 Blocked
nt!IoRemoveIoCompletion+0x47

[fffffa8004b52910 lsass.exe]
22c.000248 fffffa8004b8fb60 fffda341 Blocked
nt!ObpWaitForMultipleObjects+0x294
22c.000e78 fffffa8004fea3b0 fffd9e3a Blocked
nt!IoRemoveIoCompletion+0x47

[fffffa8004b59b30 lsm.exe]
234.000908 fffffa8005272b60 fffd9f63 Blocked
nt!IoRemoveIoCompletion+0x47

[fffffa8004be8b30 svchost.exe]
294.000b6c fffffa8004679a40 fffddc4a Blocked
nt!KiAcquireGuardedMutex+0x45
294.000e4c fffffa80049c6320 fffda4d0 Blocked
nt!IoRemoveIoCompletion+0x47

[fffffa8004dc6180 svchost.exe]
2e0.0002f4 fffffa8004dce430 fffda387 Blocked
nt!ObpWaitForMultipleObjects+0x294
2e0.000c2c fffffa8004a6bb60 fffd9e3a Blocked
nt!IoRemoveIoCompletion+0x47
2e0.000408 fffffa80051079a0 fffda387 Blocked
nt!IoRemoveIoCompletion+0x47

[fffffa8004dfe630 svchost.exe]
33c.000360 fffffa8004e16660 fffda09a Blocked
nt!ObpWaitForMultipleObjects+0x294
33c.000378 fffffa8004e29b60 fffda5b0 Blocked
nt!ObpWaitForMultipleObjects+0x294
33c.000f38 fffffa80050d7b60 fffdaad3 Blocked
nt!IoRemoveIoCompletion+0x47
33c.000990 fffffa8004fee420 fffda09a Blocked
nt!IoRemoveIoCompletion+0x47
33c.000c70 fffffa8004fe9b60 fffda09a Blocked
nt!IoRemoveIoCompletion+0x47

[fffffa8004e2fb30 svchost.exe]
380.00038c fffffa8004e35770 fffd9e4e Blocked
nt!ObpWaitForMultipleObjects+0x294
380.0003bc fffffa8004e4c060 fffda52d Blocked
nt!KiSystemServiceCopyEnd+0x13
380.000148 fffffa8004a1d060 fffda2ad Blocked
nt!IoRemoveIoCompletion+0x47
380.00066c fffffa8004f395f0 fffd9e3a Blocked nt!AlpcpSignalAndWait+0x8f
380.0006ec fffffa8004f7aa00 fffda2ad Blocked
nt!ObpWaitForMultipleObjects+0x294
380.00055c fffffa8004a1eb60 fffda2ce Blocked
nt!IoRemoveIoCompletion+0x47
380.000ed8 fffffa8004a65b60 fffd9e4e Blocked
nt!IoRemoveIoCompletion+0x47
380.000a88 fffffa8004faa060 fffd9e4e Blocked
nt!IoRemoveIoCompletion+0x47

[fffffa8004e4c930 svchost.exe]
3c0.00079c fffffa8005277690 fffda1c4 Blocked
nt!KiSystemServiceCopyEnd+0x13
3c0.000f9c fffffa8004648b60 fffda0e6 Blocked
nt!IoRemoveIoCompletion+0x47

[fffffa8004e60b30 svchost.exe]
3e8.0003b4 fffffa80049ffb60 fffddc63 Blocked
nt!KiAcquireGuardedMutex+0x45

[fffffa8004e712c0 svchost.exe]
11c.00013c fffffa8004e78060 fffd9e65 Blocked
nt!ObpWaitForMultipleObjects+0x294
11c.000de4 fffffa80052f7ae0 fffd9ee5 Blocked
nt!IoRemoveIoCompletion+0x47
11c.000f30 fffffa80050f2820 fffd9e65 Blocked
nt!IoRemoveIoCompletion+0x47
11c.000a64 fffffa8004677660 fffd9e65 Blocked
nt!IoRemoveIoCompletion+0x47
11c.000cfc fffffa8004cd7b60 fffda1a5 Blocked
nt!ObpWaitForMultipleObjects+0x294

[fffffa8004de95f0 svchost.exe]
2a4.000448 fffffa8004ac1060 fffda73f Blocked
nt!IoRemoveIoCompletion+0x47
2a4.000f94 fffffa800514cb60 fffda745 Blocked
nt!IoRemoveIoCompletion+0x47
2a4.000dfc fffffa8004d2c680 fffd9e3a ??? nt!DbgBreakPointWithStatus

[fffffa8004b3e340 spoolsv.exe]
468.00047c fffffa8004bc3190 fffda49f Blocked
nt!ObpWaitForMultipleObjects+0x294
468.000f34 fffffa8005005460 fffda49f Blocked
nt!IoRemoveIoCompletion+0x47
468.000e88 fffffa8004cf6b60 fffda49f Blocked
nt!IoRemoveIoCompletion+0x47

[fffffa8004bfe060 ShutdownMonito]
490.0008cc fffffa80051ba5e0 fffd9ff1 Blocked
nt!IoRemoveIoCompletion+0x47

[fffffa8004b17060 taskhost.exe]
52c.000fb8 fffffa8004a76b60 fffdab25 Blocked
nt!IoRemoveIoCompletion+0x47

[fffffa8004f0ab30 svchost.exe]
608.00062c fffffa8004f0c740 fffd9ff1 Blocked
nt!IoRemoveIoCompletion+0x47

[fffffa8004f218b0 WTTSvc.exe]
640.000778 fffffa8004a9d060 fffd9e3a Blocked
nt!KiSystemServiceCopyEnd+0x13
640.00078c fffffa8004a9f270 fffd9f00 Blocked
nt!KiSystemServiceCopyEnd+0x13
640.0000c4 fffffa8005199550 fffdab25 Blocked
nt!IoRemoveIoCompletion+0x47

[fffffa8005014b30 sppsvc.exe]
3a8.000d98 fffffa8004fd5b60 fffda19a Blocked
nt!IoRemoveIoCompletion+0x47

[fffffa800503db30 svchost.exe]
568.000c30 fffffa80047cc890 fffda17e Blocked
nt!IoRemoveIoCompletion+0x47

[fffffa800504bb30 Acmengine.exe]
5f4.0004f0 fffffa8005058b60 fffd9e4e Blocked
nt!ObpWaitForMultipleObjects+0x294
5f4.0005d0 fffffa80050603c0 fffd9e4e Blocked
nt!KiSystemServiceCopyEnd+0x13
5f4.000f68 fffffa80052b0160 fffdaa3d Blocked
nt!IoRemoveIoCompletion+0x47

[fffffa8004ad3060 sysparse.exe]
348.000f74 fffffa8004945b60 fffddc61 Blocked
nt!KiAcquireGuardedMutex+0x45
348.000c10 fffffa8004666b60 fffddc74 Blocked
nt!KiAcquireGuardedMutex+0x45
348.00014c fffffa8005185b60 fffda269 Blocked
nt!IoRemoveIoCompletion+0x47

[fffffa80050d0b30 DisplayGathere]
2d8.000984 fffffa800493e660 fffdab24 Blocked
nt!IoRemoveIoCompletion+0x47

[fffffa80050dab30 WatchdogMgr.ex]
808.0007fc fffffa800508c940 fffda568 Blocked
nt!KiSystemServiceCopyEnd+0x13
808.000bc8 fffffa8004ce8720 fffd9e51 Blocked
nt!IoRemoveIoCompletion+0x47

[fffffa80051eb680 UI0Detect.exe]
994.0009a0 fffffa80051f0b60 fffd9ff1 Blocked
nt!IoRemoveIoCompletion+0x47

[fffffa800520e060 dwm.exe]

[fffffa8005211060 explorer.exe]
ad0.000b48 fffffa80051c1b60 fffda422 Blocked
nt!ObpWaitForMultipleObjects+0x294
ad0.000974 fffffa80050d2740 fffda428 Blocked
nt!ObpWaitForMultipleObjects+0x294
ad0.00097c fffffa8005284aa0 fffd9e58 Blocked
nt!ObpWaitForMultipleObjects+0x294
ad0.0009c8 fffffa80050cd630 fffd9e54 Blocked
nt!ObpWaitForMultipleObjects+0x294

[fffffa8004e00b30 msdtc.exe]
bcc.000964 fffffa80051c1060 fffd9ff0 Blocked
nt!IoRemoveIoCompletion+0x47

[fffffa80052697e0 mmc.exe]
9e4.000150 fffffa80052e5450 fffda568 Blocked
nt!KiSystemServiceCopyEnd+0x13
9e4.000388 fffffa80052f8990 fffd9e55 Blocked
win32k!xxxRealSleepThread+0x257
9e4.00073c fffffa80052f8490 fffd9e55 Blocked
nt!KiSystemServiceCopyEnd+0x13
9e4.0003fc fffffa800537e3e0 fffd9e4e Blocked
nt!KiSystemServiceCopyEnd+0x13
9e4.00049c fffffa8004a54b60 fffddbbf Blocked
nt!KiAcquireGuardedMutex+0x45
9e4.0004d0 fffffa8004962060 fffd9e3a Blocked
nt!KiSystemServiceCopyEnd+0x13
9e4.000dd4 fffffa800537d060 fffd9e55 Blocked
nt!KiSystemServiceCopyEnd+0x13
9e4.000d48 fffffa8004e228e0 fffd9e55 Blocked
nt!KiSystemServiceCopyEnd+0x13
9e4.000ef4 fffffa80052b0b60 fffda19a Blocked
nt!IoRemoveIoCompletion+0x47

[fffffa80051c83a0 cmd.exe]

[fffffa80051e26a0 conhost.exe]
a00.000774 fffffa80050c3370 fffd9e56 Blocked
win32k!xxxRealSleepThread+0x257

[fffffa80052b2060 cscript.exe]
860.000a38 fffffa80052d7b60 fffdb078 Blocked
nt!NtInitiatePowerAction+0x1af
860.000c38 fffffa80052a7b60 fffdab68 Blocked
nt!IoRemoveIoCompletion+0x47

[fffffa80051482d0 TrustedInstall]
180.00095c fffffa80051643d0 fffdab26 Blocked
nt!IoRemoveIoCompletion+0x47

[fffffa80052c7670 wuauclt.exe]
9d0.000398 fffffa8004fbf740 fffdab26 Blocked
nt!IoRemoveIoCompletion+0x47

[fffffa8005183b30 WmiPrvSE.exe]
820.0001a8 fffffa800483b480 fffdab23 Blocked
nt!IoRemoveIoCompletion+0x47

[fffffa800515cb30 slui.exe]
df4.000b58 fffffa80048395c0 fffd9eeb Blocked
Ntfs!NtfsAcquireExclusiveFcb+0x73

Threads Processed: 477

Max cache size is : 1048576 bytes (0x400 KB)
Total memory in cache : 0 bytes (0 KB)
Number of regions cached: 0
0 full reads broken into 0 partial reads
counts: 0 cached/0 uncached, 0.00% cached
bytes : 0 cached/0 uncached, 0.00% cached
** Transition PTEs are implicitly decoded
** Prototype PTEs are implicitly decoded

Thanks
Annie.