Mmap Invalid Argument. The prot argument describes the desired memory protection of the mapping (and must not conflict with the open mode of the file). EINVAL We don't like start or length or offset. (E.g., they are too large, or not aligned on a page boundary.) Perhaps you didn't page align your memory? As a first test, I use some code based on example-code found everywhere in the net and SO. When I do mmap () the error "Invalid argument" (in C\+\+ program) or "Permission denied" (in C program) appears. A little detour from your question, you may want to check both your addr and len fed to mmap, because it want your required address to be page-aligned. Memory-mapped file objects behave like both bytearray and like file objects.
Mmap Invalid Argument. EINVAL We don't like start or length or offset. (E.g., they are too large, or not aligned on a page boundary.) Perhaps you didn't page align your memory? See WebAssembly platforms for more information. When I do mmap () the error "Invalid argument" (in C\+\+ program) or "Permission denied" (in C program) appears. You signed out in another tab or window. Memory-mapped file objects behave like both bytearray and like file objects. A little detour from your question, you may want to check both your addr and len fed to mmap, because it want your required address to be page-aligned. Mmap Invalid Argument.
As a first test, I use some code based on example-code found everywhere in the net and SO.
The prot argument describes the desired memory protection of the mapping (and must not conflict with the open mode of the file).
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Mmap Invalid Argument. EMFILE Before we dive into the causes and solutions of the "mmap invalid argument" error, let's first understand what mmap is. mmap stands for "memory mapped files," a technique used to access files in a more efficient manner. A little detour from your question, you may want to check both your addr and len fed to mmap, because it want your required address to be page-aligned. From the mmap () documentation that tells you. Here is my code: After the mmap () call has returned, the file descriptor, fd, can be closed immediately without invalidating the mapping. EINVAL The addr argument (if MAP_FIXED was specified) or off is not a multiple of the page size as returned by sysconf(), or are considered invalid by the implementation. The value of flags is invalid (neither MAP_PRIVATE nor MAP_SHARED is set).
Mmap Invalid Argument.