WinDbg fails to find symbol file reporting 'unrecognized OMF sig'
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Published on 2010-05-01T23:52:10Z
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I have received a 64bit dump of a 32bit app that was running on Win7 x64. I am able to load it in WinDbg (hint: !wow64exts.sw
) running on a 64bit OS. The symbols for most of my dlls are loaded properly. The pdb for one though does not load. The same pdb does load properly for the same dll when reading a 32bit dump on a different system. I've also confirmed that the dll and pdb match each other via the chkmatch utility.
I tried .symopt +40
but the pdb still didn't load.
I did !sym noisy
then .reload
- WinDbg reported:
DBGHELP: unrecognized OMF sig: 811f1121 *** ERROR: Symbol file could not be found. Defaulted to export symbols
Any ideas on what to try to get WinDbg to load my pdb when reading a 64bit dump?
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