Archive for January 26th, 2007

Note: 32-bit stack from 64-bit dump

Friday, January 26th, 2007

Just a short note that might be useful if you get a 64-bit dump of a 32-bit process from x64 Windows. As a reminder I wrote already about separate dump types and tools for 32-bit and 64-bit processes.

Since then I’ve been looking for a simple solution in case we get a 64-bit dump so we could look at 32-bit thread stacks, etc. Yesterday I accidentally found wow64exts.dll extension in 64-bit WinDbg. I should have been looked at \winxp folder before :-) 

The whole discussion and solution can be found on Crash Dump Analysis forum:

http://www.dumpanalysis.org/forum/viewtopic.php?t=39

Now if by accident a customer sends a 64-bit dump of a 32-bit process (some Citrix services like IMA service are still 32-bit in x64 CPS4) then we can look at threads without asking for a new dump and therefore avoid roundtrips and shorten time to problem resolution.

- Dmitry Vostokov -