Overrun Screw N.
[C Programming] A Variety Of Fandango On Core Produced By Scribbling Past The End Of
Implementations Typically Have No Checks For This Error).
[C programming] A variety of fandango on core produced by scribbling past the end of
implementations typically have no checks for this error). This is
relatively benign and easy to spot if the array is static; if it is
auto, the result may be to smash the stack -- often resulting
in heisenbugs of the most diabolical subtlety. The term
`overrun screw' is used esp. of scribbles beyond the end of
arrays allocated with malloc(3); this typically trashes the
allocation header for the next block in the arena, producing
massive lossage within malloc and often a core dump on the next
operation to use stdio(3) or malloc(3) itself. See
spam, overrun; see also memory leak
aliasing bug: n. A class of subtle programming errors that can
arise in code that does dynamic allocation, esp. via
`malloc(3)' or equivalent. If several pointers address
(`aliases for') a given hunk of storage, it may happen that the
storage is freed or reallocated (and thus moved) through one alias
and then referenced through another, which may lead to subtle (and
possibly intermittent) lossage depending on the state and the
allocation history of the malloc {arena}....
aliasing bug n.
A class of subtle programming errors that
can arise in code that does dynamic allocation, esp. via
malloc(3) or equivalent. If several pointers address
(`aliases for') a given hunk of storage, it may happen that the
storage is freed or reallocated (and thus moved) through one alias
and then referenced through another, which may lead to subtle (and
possibly intermittent) lossage depending on the state and the
allocation history of the malloc arena....
fandango on core n.
[Unix/C hackers, from the Iberian
dance] In C a wild pointer that runs out of bounds, causing a
core dump, or corrupts the malloc(3) arena in such
a way as to cause mysterious failures later on, is sometimes said
to have `done a fandango on core'....
fandango on core: [UNIX/C hackers, from the Mexican dance] n.
In C, a wild pointer that runs out of bounds, causing a {core
dump}, or corrupts the `malloc(3)' {arena} in such a way as
to cause mysterious failures later on, is sometimes said to have
`done a fandango on core'....
