It looks to me like if you Free pages, after you free pages you hit this DEBUG message.
https://github.com/tianocore/edk2/blob/master/MdeModulePkg/Core/Dxe/Mem/Page.c#L790 if (!(NewType == EfiConventionalMemory ? 1 : 0) ^ (Entry->Type == EfiConventionalMemory ? 1 : 0)) { DEBUG ((DEBUG_ERROR | DEBUG_PAGE, "ConvertPages: Incompatible memory types\n")); return EFI_NOT_FOUND; } I'm not sure I've thought out all the paths, but would it make more sense if you are trying to convert EfiConventionalMemory to EfiConventionalMemory that you are trying to free pages that are already freed. That is not very obvious from the above DEBUG print. Could there be an if in the error path to print a better DEBUG message for a free pages bug? Also to be pedantic the function change names to: CoreConvertPagesEx(). Thanks, Andrew Fish _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel

