[ros-bugs] [Bug 1093] New: random startup bugcheck in win32k

[ReactOS.Bugzilla at reactos.org]

http://www.reactos.org/bugzilla/show_bug.cgi?id=1093

           Summary: random startup bugcheck in win32k
           Product: ReactOS
           Version: TRUNK
          Platform: x86 Hardware
        OS/Version: ReactOS
            Status: NEW
          Severity: normal
          Priority: P3
         Component: Kernel
        AssignedTo: ros-bugs at reactos.org
        ReportedBy: sedwards at reactos.com
         QAContact: ros-bugs at reactos.org


I have seen this once every 5 or 6 boots

(./subsys/win32k/ntuser/winsta.c:108) IntWinStaObjectOpen
(./subsys/win32k/ntuser/winsta.c:118) Create winsta atomtable
(./subsys/win32k/ntuser/desktop.c:812) Trying to open desktop (\Windows\WindowSt
ations\WinSta0\Default)
KeBugCheckWithTf at ntoskrnl\ke\i386\exp.c:1242
A problem has been detected and ReactOS has been shut down to prevent damage to
your computer.

The problem seems to be caused by the following file: win32k.sys

Technical information:

*** STOP: 0x0000001E (0xc0000005,0x9d972a90,0x00000000,0x00000004)

***    win32k.sys - Address 0x9d972a90 base at 0x9d904000, DateStamp 0x0

Page Fault Exception: 14(2)
Processor: 0 CS:EIP 8:9d972a90 <win32k.sys:6ea90 (w32api/include/ddk/winddk.h:0
())>
cr2 4 cr3 aa84000 Proc: 80d04238 Pid: 9c <winlogon.exe> Thrd: 80d08090 Tid: a0
DS 23 ES 23 FS 30 GS 0
EAX: 00000000   EBX: 9d97b352   ECX: 80d4c4a0
EDX: 00000000   EBP: 9e1b2bb8   ESI: 0062fec4   ESP: 9e1b2b3c
EDI: 9e1b2d64   EFLAGS: 00010282 kESP 9e1b2b3c kernel stack base 9e1b0000
Frames:
<win32k.sys:76651 (./subsys/win32k/ntuser/desktop.c:123 (IntDesktopObjectDelete)
)>
<ntoskrnl.exe:2a789 (./ntoskrnl/ex/win32k.c:121 (ExpDesktopDelete))>
<ntoskrnl.exe:7c227 (./ntoskrnl/ob/object.c:959 (ObpDeleteObject))>
<ntoskrnl.exe:7c447 (./ntoskrnl/ob/object.c:1044 (ObpDeleteObjectDpcLevel))>
<ntoskrnl.exe:7c623 (./ntoskrnl/ob/object.c:1155 (ObfDereferenceObject))>
<win32k.sys:776d6 (./subsys/win32k/ntuser/desktop.c:880 (NtUserCreateDesktop))>
<ntoskrnl.exe:9a28a (ntoskrnl\ke\i386\syscall.S:372 (KiSystemService))>
<user32.dll:25f2c (lib/user32/misc/desktop.c:382 (CreateDesktopW))>

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