[ros-dev] Vfatfs Bug

[James Tabor]

Hi,
Is this bug Hartmut was referring to?

Entered debugger on last-chance exception number 14 (Page Fault)
Memory at 0x4 could not be read: Page not present.
kdb:> bt
Eip:
<vfatfs.sys:7fc2 (fcb.c:224 (vfatReleaseFCB))>
Frames:
<vfatfs.sys:1937 (close.c:59 (VfatCloseFile))>
<vfatfs.sys:19d8 (close.c:100 (VfatClose))>
<vfatfs.sys:d1c8 (misc.c:106 (VfatDispatchRequest))>
<vfatfs.sys:d3ee (misc.c:168 (VfatBuildRequest))>
<ntoskrnl.exe:4c8f8 (io/irp.c:1009 (IofCallDriver))>
<ntoskrnl.exe:4c870 (io/irp.c:954 (IoCallDriver))>
<ntoskrnl.exe:45829 (io/file.c:213 (IopDeleteFile))>
<ntoskrnl.exe:7aa8c (ob/object.c:807 (ObpDeleteObject))>
<ntoskrnl.exe:7abd5 (ob/object.c:879 (ObpDeleteObjectDpcLevel))>
<ntoskrnl.exe:7ada2 (ob/object.c:988 (ObfDereferenceObject))>
<ntoskrnl.exe:1afc1 (cc/view.c:964 (CcRosDeleteFileCache))>
<ntoskrnl.exe:1b5e6 (cc/view.c:1232 (CmLazyCloseThreadMain))>
<ntoskrnl.exe:86185 (ps/thread.c:88 (PspSystemThreadStartup))>
<ntoskrnl.exe:3885 (/tmp/ccsgLh0O.s:83 (KiThreadStartup))>
kdb:> cont
KeBugCheckWithTf at ke/catch.c:217
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: vfatfs.sys

KMODE_EXCEPTION_NOT_HANDLED

Technical information:

*** STOP: 0x0000001E (0xc0000005,0x9d538fc2,0x00000000,0x00000004)

***    vfatfs.sys - Address 0x9d538fc2 base at 0x9d531000, DateStamp 0x0

Page Fault Exception: 14(0)
Processor: 0 CS:EIP 8:9d538fc2 <vfatfs.sys:7fc2 (fcb.c:224 (vfatReleaseFCB))>
cr2 4 cr3 26000 Proc: 80c47364 Pid: 4 <System> Thrd: 80c57874 Tid: 54
DS 10 ES 10 FS 30 GS 23
EAX: 00000000   EBX: 00000000   ECX: 818b00dc
EDX: 00031380   EBP: 9d4a0b9c   ESI: 0001fef4   ESP: 9d4a0b10
EDI: 00000000   EFLAGS: 00010206 kESP 9d4a0b10 kernel stack base 9d49e000
Frames:
<vfatfs.sys:1937 (close.c:59 (VfatCloseFile))>
<vfatfs.sys:19d8 (close.c:100 (VfatClose))>
<vfatfs.sys:d1c8 (misc.c:106 (VfatDispatchRequest))>
<vfatfs.sys:d3ee (misc.c:168 (VfatBuildRequest))>
<ntoskrnl.exe:4c8f8 (io/irp.c:1009 (IofCallDriver))>
<ntoskrnl.exe:4c870 (io/irp.c:954 (IoCallDriver))>
<ntoskrnl.exe:45829 (io/file.c:213 (IopDeleteFile))>
<ntoskrnl.exe:7aa8c (ob/object.c:807 (ObpDeleteObject))>
<ntoskrnl.exe:7abd5 (ob/object.c:879 (ObpDeleteObjectDpcLevel))>
<ntoskrnl.exe:7ada2 (ob/object.c:988 (ObfDereferenceObject))>
<ntoskrnl.exe:1afc1 (cc/view.c:964 (CcRosDeleteFileCache))>
<ntoskrnl.exe:1b5e6 (cc/view.c:1232 (CmLazyCloseThreadMain))>
<ntoskrnl.exe:86185 (ps/thread.c:88 (PspSystemThreadStartup))>
<ntoskrnl.exe:3885 (/tmp/ccsgLh0O.s:83 (KiThreadStartup))>

Entered debugger on embedded INT3 at 0x0008:0x800058ee.
kdb:>