Hello Andrew, Could you apply my patches to your tree? These patches are an enhancement of OVERCOMMIT_GUESS algorithm in __vm_enough_memory(). The detailed description is in attached patch. Actually, these are the revised patch which I sent to lkml in the last year. http://marc.theaimsgroup.com/?l=linux-kernel&m=112993489022427&w=2 I wrote a test kernel module to show the result of the patches. For your information, I also would like to send the module in later e-mail. Best regards, Hideo Aoki --- Hideo Aoki, Hitachi Computer Products (America) Inc.