Re: unused shared memory is written into core dump - bug or feature?

Alan Cox (alan@lxorguk.ukuu.org.uk)
Tue, 12 Jun 2001 17:01:09 +0100 (BST)

> you can be sure to never happen :-), it stymies the whole system,
> as the kernel first seems to map all the 512MB, then dumps them
> into the core file.

2.2.20pre dumps only the non zero pages and leaves holes for empty pages
2.4 likewise

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