Software Diagnostics Library

Noticed UnusualBoost in !process WinDbg command output from the complete memory dump taken from Windows 7 Beta which I’m evaluating for the purposes of memory dump analysis:

THREAD 852b5d48  Cid 071c.0950  Teb: 7ff9c000 Win32Thread: fe1fc008 WAIT: (WrUserRequest) UserMode Non-Alertable
    853e0690  SynchronizationEvent
Not impersonating
DeviceMap                 8f909fc8
Owning Process            8538a030       Image:         explorer.exe
Attached Process          N/A            Image:         N/A
Wait Start TickCount      47057          Ticks: 9460 (0:00:02:27.812)
Context Switch Count      61            
UserTime                  00:00:00.000
KernelTime                00:00:00.046
Win32 Start Address WINMM!mciwindow (0x73942761)
Stack Init 904b9fd0 Current 904b9a60 Base 904ba000 Limit 904b7000 Call 0
Priority 13 BasePriority 10 UnusualBoost 0 ForegroundBoost 2 IoPriority 2 PagePriority 5
Kernel stack not resident.
ChildEBP RetAddr 
904b9a78 8268951d nt!KiSwapContext+0×26
904b9abc 826cf460 nt!KiSwapThread+0×57b
904b9b10 8268ccaf nt!KiCommitThreadWait+0×340
904b9be8 8e50c768 nt!KeWaitForSingleObject+0×3ee
904b9c44 8e50c575 win32k!xxxRealSleepThread+0×1d7
904b9c60 8e508379 win32k!xxxSleepThread+0×2d
904b9cb8 8e50cf9a win32k!xxxRealInternalGetMessage+0×4b2
904b9d1c 8269066a win32k!NtUserGetMessage+0×3f
904b9d1c 771e5704 nt!KiFastCallEntry+0×12a
053af7e8 76fdbb29 ntdll!KiFastSystemCallRet
053af7ec 76fd3f49 USER32!NtUserGetMessage+0xc
053af810 739427e0 USER32!GetMessageA+0×8d
053af848 76f536d6 WINMM!mciwindow+0×102
053af854 771c883c kernel32!BaseThreadInitThunk+0xe
053af894 771c880f ntdll!__RtlUserThreadStart+0×70
053af8ac 00000000 ntdll!_RtlUserThreadStart+0×1b

There is also ForegroundBoost but its meaning is obvious to me.

- Dmitry Vostokov @ DumpAnalysis.org -

This entry was posted on Friday, April 24th, 2009 at 11:27 am and is filed under Crash Dump Analysis, Windows 7. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.