Fix C000001D STATUS_ILLEGAL_INSTRUCTION EXCEPTION_ILLEGAL_INSTRUCTION Error

Last Updated on December 12, 2018



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Error C000001D is an illegal declaration. The most common reason is binary corruption, such as a DLL, or in this case cv2.pyd.

There are several ways to damage it. You can have transferred or copied it as a text file, for example. Another common problem is the execution of a 64-bit code file on 32-bit hardware, or perhaps a 64-bit binary file with a 32-bit python, or any combination of the two.

You can also run code on a completely different set of commands or code file format, for example copy ARM code and expect it to run on Intel or Linux (ELF) under Windows (PE COFF).

This problem is usually caused by the use of unsupported hardware, such as a processor that does not support the SIMD Extensions 2 (SSE2) Streaming command set (for example, Intel Pentium III, AMD Athlon 32-bit).



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The problem seems to be limited to these AMD Athlon computers and occurs in both the release and debug configuration (default optimization levels, “Use Intel extensions” set to “None”). The runtime library is statically linked, but multithreaded debugging and multithreaded exhibit have the same behavior.

It is either the compiler that uses SSE2 by default, or at least some functions of the 11.0 runtime library are created with SSE2 instructions that do not seem to be supported by Athlon XP. However, a small test exe works without any problems. The dll crashes in trivial places (either DllMain or a small function that defines a global variable), not during something special.

This means that a trap has occurred in kernel mode, and that it is a trap of a kind that the kernel may not have/catch (bound trap) or the option
is always immediate death (double fault). The first number in the bugcheck settings is the trap number (8 = double error, etc.) Consult an Intel x86 family manual for more information on what these traps are.

https://github.com/mirus77/libeet/issues/1


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