Hi all, I don't know whether I am posting it at right place or not. But one of the crucial servers at my office is crashing again and again and when I check the error log it says the following. I am using RH 7.1 & have tried tuning the kernel virtual memory & page table parameters. Feb 13 18:16:35 sir kernel: __alloc_pages: 4-order allocation failed. Feb 13 18:16:40 svr last message repeated 3 times Feb 13 18:16:45 svr kernel: __alloc_pages: 4-order allocation failed. Please see if any one can suggest something. Thanks Manoj -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/