sbrk(2) broken

Robert Watson rwatson at
Fri Jan 4 03:06:04 PST 2008

On Fri, 4 Jan 2008, Dag-Erling Smørgrav wrote:

> Robert Watson <rwatson at> writes:
>> The right answer is presumably to introduce a new LIMIT_SWAP, which
>> limits the allocation of anonymous memory by processes, and size it to
>> something like 90% of swap space by default.
> Not a good solution on its own.  You need a per-process limit as well, 
> otherwise a malloc() bomb will still cause other processes to fail randomly.

That was what I had in mind, the above should read RLIMIT_SWAP.

Robert N M Watson
Computer Laboratory
University of Cambridge

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