Hi

For some reason i was unable to configue symbols on windbg
so i didn't post the !analyze -v output.
I got a UNEXPECTED_KERNEL_MODE_TRAP (7f) Parameter 1 : 0x8 Double
Fault.

Any idea what can be the cause ?
nt!Kei386EoiHelper+0x173d is the only function i saw in the stack
trace, i didn't even see my driver's function.


Thanks

Re: Stack overflow in nt!Kei386EoiHelper+0x173d by Maxim

Maxim
Wed Aug 10 16:26:26 CDT 2005

Kernel stack overflow.

--
Maxim Shatskih, Windows DDK MVP
StorageCraft Corporation
maxim@storagecraft.com
http://www.storagecraft.com

"Omer" <Omerb99@gmail.com> wrote in message
news:1123701498.515914.229690@g47g2000cwa.googlegroups.com...
> Hi
>
> For some reason i was unable to configue symbols on windbg
> so i didn't post the !analyze -v output.
> I got a UNEXPECTED_KERNEL_MODE_TRAP (7f) Parameter 1 : 0x8 Double
> Fault.
>
> Any idea what can be the cause ?
> nt!Kei386EoiHelper+0x173d is the only function i saw in the stack
> trace, i didn't even see my driver's function.
>
>
> Thanks
>



Re: Stack overflow in nt!Kei386EoiHelper+0x173d by James

James
Wed Aug 10 18:13:33 CDT 2005

If you have a recent drop of the debugger, look at "'Short' call stacks" in
<debugger installation directory>\kernel_debugging_tutorial.doc for some
hints for what is probably a stack overflow (as Max indicated).

--
James Antognini
Windows DDK and WDK Support


This posting is provided "AS IS" with no warranties, and confers no rights.



"Omer" <Omerb99@gmail.com> wrote in message
news:1123701498.515914.229690@g47g2000cwa.googlegroups.com...
> Hi
>
> For some reason i was unable to configue symbols on windbg
> so i didn't post the !analyze -v output.
> I got a UNEXPECTED_KERNEL_MODE_TRAP (7f) Parameter 1 : 0x8 Double
> Fault.
>
> Any idea what can be the cause ?
> nt!Kei386EoiHelper+0x173d is the only function i saw in the stack
> trace, i didn't even see my driver's function.
>
>
> Thanks
>



Re: Stack overflow in nt!Kei386EoiHelper+0x173d by Omer

Omer
Thu Aug 11 07:34:16 CDT 2005

Hi

didn't find any kernel_debugging_tu=ADtorial.doc in windbg's install
dir..
Where/How can i get it ?

It's wierd, but it only occures on win2k sp4 and not on winxp sp2...
Does changing the allocation of local varibles from stack to heap will
help ?
Also, how can it be that i don't see any of my driver's functions if he
is the cause ?
(i mean that nt!Kei386EoiHelper+0x173d is supposed to run from the same
thread that my drivers is running, isn't it?)


Re: Stack overflow in nt!Kei386EoiHelper+0x173d by pavel_a

pavel_a
Thu Aug 11 12:41:05 CDT 2005

"Omer" wrote:
> Hi
>
> didn't find any kernel_debugging_tu­torial.doc in windbg's install
> dir..
> Where/How can i get it ?

Look again in \Program Files\Debugging Tools for Windows

> It's wierd, but it only occures on win2k sp4 and not on winxp sp2...

So there is a visible progress...

--PA