On Tue, 2005-11-22 at 18:17 -0500, Anjan Dave wrote: > It's mostly a 'read' application, I increased the vm.max-readahead to > 2048 from the default 256, after which I've not seen the CS storm, > though it could be incidental. Can you verify this, please? Turn it back down again, try the test, then reset and try the test. If that is a repeatable way of recreating one manifestation of the problem then we will be further ahead than we are now. Thanks, Best Regards, Simon Riggs