What does errno 79 (EOVERFLOW) in Solaris mean?

EOVERFLOW

Data type representability

EOVERFLOW is Solaris errno 79 (value too large to be stored in data type). Solaris could not store a value in the requested data type without overflow.

Keep the source value and destination type or structure version that could not represent it. The correct repair may be a wider interface or large-file variant; truncating the value can silently point at the wrong file offset, size, or identifier.

What to check

• Capture the exact interface, structure type, and ABI width used by the process.
• for path failures, record both full pathname length and individual component length.
• for representability failures, compare large-file, 32-bit, and 64-bit build modes.

References

• Oracle Solaris intro(2): error numbers
• illumos errno.h definitions
• POSIX errno.h