DEADBEEF

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The Jargon File

Parts of this article are based on the Jargon File, v. 4.4.7,
a public domain document of hacker jargon.

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DEADBEEF
/ded·beef/
Usage: n.


DEADBEEF: /ded·beef/ n.

The hexadecimal word-fill pattern for freshly allocated memory under a number of IBM environments, including the RS/6000. Some modern debugging tools deliberately fill freed memory with this value as a way of converting heisenbugs into Bohr bugs. As in "Your program is DEADBEEF" (meaning gone, aborted, flushed from memory); if you start from an odd half-word boundary, of course, you have BEEFDEAD. See also the anecdote under fool and dead beef attack.

Sources

Source: DEADBEEF, in The Jargon File, version 4.4.7.


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