= S =
segmentation fault n.
[Unix] 1. techspeak An error in
which a running program attempts to access memory not allocated to
it and core dumps with a segmentation violation error. This
is often caused by improper usage of pointers in the source code,
dereferencing a null pointer, or (in C) inadvertently using a
non-pointer variable as a pointer. The classic example is:
scanf ("%d", i); /* should have used &i */
2. To lose a train of thought or a line of reasoning. Also uttered
as an exclamation at the point of befuddlement.
--The Jargon File version 4.3.1, ed. ESR, autonoded by rescdsk.