[plug] 2.4.24 mremap root exploit

[Bernd Felsche]

On Thu, Feb 19, 2004 at 07:31:52AM +0800, Craig Ringer wrote:
> Our I/O stalling issues under heavy write loads still appear to be
> present. Writes appear to be somewhat faster and generally bog the
> system less, but still cause long delays in read service. As I gather
> 2.6 has pluggable I/O schedulers, so some investigation may be needed
> there.

Look at "cfqioprio". I don't have a spare system on which to test.
The scheduler can be chosen/tuned at runtime, AFAICT from
http://lwn.net/Articles/50695/

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