Hi, I have a test process which continuously mallocs memory and I find it stops at 2.625Gb. Shouldn't it malloc upto 3Gb (given the standard split is 3/1Gb). Furthermore on that box I ran a kernel compiled with HIGHMEM support (64G,HIGHPTE all options turned on). There was no difference to malloc however and I still errored out at the same limit. Any ideas? Thanks, Vikram -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/