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SubjectRe: unused shared memory is written into core dump - bug or feature?
Date
Hi Peter,

On Tue, 12 Jun 2001, Peter Niemayer wrote:
> I just noticed that when I attach some SYSV shared memory segments
> to my process and then that process dies from a SIGSEGV that _all_
> the shared memory is dumped into the core file, even if it was never
> used and therefore didn't show up in any of the memory statistics.

Fixed in recent kernel versions (2.2 and 2.4). It will create sparse
files and not touch the unused address space.

Greetings
Christoph


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