dumb question but i can't overlook the obvious, are you sure you are in AMD64 kernel?
2009/5/6 Volker Armin Hemmann <volkerar...@googlemail.com>: > On Mittwoch 06 Mai 2009, Nadav Horesh wrote: >> I recently added 4GB to the existing 2GB I had. The BIOS and lshw recognize >> the memory configuration (2 dimm of 1G and 2 of 2G), but /prc/meminfo and a >> test program I ran recognize 3.2GB. >> >> My system configuration: >> cpu: core2 6600 >> chipset: DP965LT (Intel's motherboard) >> >> $ uname -a >> Linux nadav 2.6.27-gentoo-r8 #1 SMP PREEMPT Wed May 6 16:53:07 IDT 2009 >> x86_64 Intel(R) Core(TM)2 CPU 6600 @ 2.40GHz GenuineIntel GNU/Linux >> >> c$ cat /proc/meminfo >> >> MemTotal: 3347392 kB >> MemFree: 2687760 kB >> Buffers: 22912 kB >> Cached: 350868 kB >> SwapCached: 0 kB >> Active: 315244 kB >> Inactive: 268072 kB >> SwapTotal: 2008116 kB >> SwapFree: 2008116 kB >> Dirty: 24 kB >> Writeback: 0 kB >> AnonPages: 209536 kB >> Mapped: 75700 kB >> Slab: 30152 kB >> SReclaimable: 17292 kB >> SUnreclaim: 12860 kB >> PageTables: 11760 kB >> NFS_Unstable: 0 kB >> Bounce: 0 kB >> WritebackTmp: 0 kB >> CommitLimit: 3681812 kB >> Committed_AS: 473288 kB >> VmallocTotal: 34359738367 kB >> VmallocUsed: 176468 kB >> VmallocChunk: 34359561723 kB >> DirectMap4k: 15360 kB >> DirectMap2M: 3391488 kB >> >> >> Memory report out of lshw: >> >> >> *-memory >> description: System Memory >> physical id: 17 >> slot: System board or motherboard >> size: 6GiB >> *-bank:0 >> description: DIMM Synchronous 667 MHz (1.5 ns) >> product: 0x202020202020202020202020202020202020 >> vendor: 0x7F98000000000000 >> physical id: 0 >> serial: 0xD1CCDFF7 >> slot: J6H1 >> size: 2GiB >> width: 64 bits >> clock: 667MHz (1.5ns) >> *-bank:1 >> description: DIMM Synchronous 667 MHz (1.5 ns) >> product: 0x000000000000000000000000000000000000 >> vendor: 0x7F98000000000000 >> physical id: 1 >> serial: 0x6C06E0E5 >> slot: J6H2 >> size: 1GiB >> width: 64 bits >> clock: 667MHz (1.5ns) >> *-bank:2 >> description: DIMM Synchronous 667 MHz (1.5 ns) >> product: 0x202020202020202020202020202020202020 >> vendor: 0x7F98000000000000 >> physical id: 2 >> serial: 0xD1CCFFF7 >> slot: J6J1 >> size: 2GiB >> width: 64 bits >> clock: 667MHz (1.5ns) >> *-bank:3 >> description: DIMM Synchronous 667 MHz (1.5 ns) >> product: 0x000000000000000000000000000000000000 >> vendor: 0x7F98000000000000 >> physical id: 3 >> serial: 0x660663BC >> slot: J6J2 >> size: 1GiB >> width: 64 bits >> clock: 667MHz (1.5ns) >> >> Any idea? >> >> Nadav > > get a non broken bios? > > >