Re: Avoiding OOM on overcommit...?

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Fri Mar 24 2000 - 12:00:13 EST


> The explanation is not the issue. The issue is having programs that
> act correctly (check malloc() returns, don't follow null pointers,
> etc.) fail in ways that are quite difficult for their programmers
> to prevent.

Indeed. And its completely valid to kill them off. Right now nobody has
a serious commercial requirement for non-overcommit on Linux.

> For example, this implies one should not run a production database on
> a multi-user Linux machine since it could crash in non-recoverable
> ways.

Database people don't care. Firstly you dont run the machine out of memory.
Secondly their data has to be robust against people tripping over the
power cord which is probably the more common event.

Alan

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