Seeing weird behaviour in WinDBG. !process etc fail to work

WINDBG
1

I have WinDBG’s 6.0.0007 version. For the past few days, sometimes when I
break into the target to debug something, I find that !process 0 7 fails
with “Unable to get value of PsActiveProcessHead”, !irp fails with “IRP
signature does not match, probably not an IRP”. lm etc are also not
working. Any insight would be helpful.

Thanks,

Rini

2

wrote in message news:xxxxx@windbg…
>
> I have WinDBG’s 6.0.0007 version.
Why not update? It’s free.

> For the past few days, sometimes when I
> break into the target to debug something, I find that !process 0 7 fails
> with “Unable to get value of PsActiveProcessHead”, !irp fails with “IRP
> signature does not match, probably not an IRP”. lm etc are also not
> working. Any insight would be helpful.
>
> Thanks,
>
> Rini
>
>

3

This behaviour is not related to the version of WinDBG as I have been
using the 6.0.7 version for almost a year now. In any case I did update my
WinDbg, but I still have the same problem. Any ideas on how to debug in
such a situation when I can not look at the process stacks.