From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from astro.wisc.edu (voodoo.astro.wisc.edu [144.92.179.132]) by uwast.astro.wisc.edu (8.10.1/8.10.1) with ESMTP id eB1KSfj4514824 for ; Fri, 1 Dec 2000 14:28:41 -0600 (CST) Message-ID: <3A2809F9.C3360160@astro.wisc.edu> Date: Fri, 01 Dec 2000 14:28:41 -0600 From: jansen MIME-Version: 1.0 Subject: Problems accessing > 2GB RAM per process Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: linux-mm@kvack.org List-ID: Hi, I have just gotten a Intel Linux box with 4GB of RAM and am having problems accessing more than 2 GB of RAM in a single process. I am using 2.2.18pre11-va1.1smp on a VA Linux machine which has the BIGMEM stuff compiled in, and I'm currently using the RedHat 7.0 (and updated) gcc and glibc stuff installed (ie: binutils-2.10.0.18-1,gcc-2.96-54, kgcc-1.1.2-40, gcc-g77-2.96-54, glibc-devel-2.2-5, glibc-2.2-5). I'm compiling simple test programs in C and Fortran with "-static" and still I can't access RAM beyond 2GB (it was about 1.5 GB without the "-static" switch). The symptom is a SEGV when accessing an array in Fortran and in C I am unable to malloc beyond 2GB. Any suggestions on what I'm doing wrong? Is there any way to access more than 3 GB per process with this setup and if so how? Thanks and sorry if this is FAQ, I couldn't find this adequately answered anywhere. Here's what it says in meminfo: #cat /proc/meminfo total: used: free: shared: buffers: cached: Mem: 4160315392 406388736 3753926656 0 71380992 233754624 Swap: 4293509120 0 4293509120 MemTotal: 4062808 kB MemFree: 3665944 kB MemShared: 0 kB Buffers: 69708 kB Cached: 228276 kB BigTotal: 3080188 kB BigFree: 3051196 kB SwapTotal: 4192880 kB SwapFree: 4192880 kB -- ------- Stephan -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux.eu.org/Linux-MM/