hello, I am not sure if I report to the right place, but I have 4 gb (2x2GB) of ram (also lshw confirms that), but under any ubuntu (including 64 bit, 32 bit -server -generic, and howto here: http://www.kreno.be/2007/11/22/howto-ubuntu-4gb-memory-support/ ) I can see only ~3GB. top says: Mem: 3025656k total i...@most:~$ free -m total used free shared buffers cached Mem: 2954 827 2126 0 92 370 -/+ buffers/cache: 364 2590 Swap: 3906 0 3906 i...@most:~$ cat /proc/meminfo MemTotal: 3025656 kB MemFree: 2193276 kB Buffers: 94804 kB Cached: 379396 kB SwapCached: 0 kB Active: 435060 kB Inactive: 296676 kB Active(anon): 260248 kB Inactive(anon): 8 kB Active(file): 174812 kB Inactive(file): 296668 kB Unevictable: 40 kB Mlocked: 40 kB HighTotal: 2163980 kB HighFree: 1516172 kB LowTotal: 861676 kB LowFree: 677104 kB SwapTotal: 4000176 kB SwapFree: 4000176 kB Dirty: 60 kB Writeback: 0 kB AnonPages: 257652 kB Mapped: 85436 kB Slab: 40120 kB SReclaimable: 28692 kB SUnreclaim: 11428 kB PageTables: 4828 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 5513004 kB Committed_AS: 606120 kB VmallocTotal: 122880 kB VmallocUsed: 12692 kB VmallocChunk: 103924 kB HugePages_Total: 0 HugePages_Free: 0 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 51192 kB DirectMap2M: 858112 kB
dmesg: [ 0.000000] BIOS EBDA/lowmem at: 0009d400/0009d400 [ 0.000000] Initializing cgroup subsys cpuset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Linux version 2.6.28.9-custom (r...@most) (gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4) ) #1 SMP Tue May 12 17:19:25 CEST 2009 (Ubuntu 2.6.28-11.42-generic) [ 0.000000] KERNEL supported cpus: [ 0.000000] Intel GenuineIntel [ 0.000000] AMD AuthenticAMD [ 0.000000] NSC Geode by NSC [ 0.000000] Cyrix CyrixInstead [ 0.000000] Centaur CentaurHauls [ 0.000000] Transmeta GenuineTMx86 [ 0.000000] Transmeta TransmetaCPU [ 0.000000] UMC UMC UMC UMC [ 0.000000] BIOS-provided physical RAM map: [ 0.000000] BIOS-e820: 0000000000000000 - 000000000009d400 (usable) [ 0.000000] BIOS-e820: 000000000009d400 - 00000000000a0000 (reserved) [ 0.000000] BIOS-e820: 00000000000d2000 - 00000000000d4000 (reserved) [ 0.000000] BIOS-e820: 00000000000e4000 - 0000000000100000 (reserved) [ 0.000000] BIOS-e820: 0000000000100000 - 00000000bb6a1000 (usable) [ 0.000000] BIOS-e820: 00000000bb6a1000 - 00000000bb6a7000 (reserved) [ 0.000000] BIOS-e820: 00000000bb6a7000 - 00000000bb7bc000 (usable) [ 0.000000] BIOS-e820: 00000000bb7bc000 - 00000000bb80f000 (reserved) [ 0.000000] BIOS-e820: 00000000bb80f000 - 00000000bb908000 (usable) [ 0.000000] BIOS-e820: 00000000bb908000 - 00000000bbb0f000 (reserved) [ 0.000000] BIOS-e820: 00000000bbb0f000 - 00000000bbb18000 (usable) [ 0.000000] BIOS-e820: 00000000bbb18000 - 00000000bbb1f000 (reserved) [ 0.000000] BIOS-e820: 00000000bbb1f000 - 00000000bbb64000 (usable) [ 0.000000] BIOS-e820: 00000000bbb64000 - 00000000bbb9f000 (ACPI NVS) [ 0.000000] BIOS-e820: 00000000bbb9f000 - 00000000bbbe2000 (usable) [ 0.000000] BIOS-e820: 00000000bbbe2000 - 00000000bbbff000 (ACPI data) [ 0.000000] BIOS-e820: 00000000bbbff000 - 00000000bbc00000 (usable) [ 0.000000] BIOS-e820: 00000000bbc00000 - 00000000bbe00000 (reserved) [ 0.000000] BIOS-e820: 00000000bc000000 - 00000000c0000000 (reserved) [ 0.000000] BIOS-e820: 00000000e0000000 - 00000000f0000000 (reserved) [ 0.000000] BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved) [ 0.000000] BIOS-e820: 00000000fed00000 - 00000000fed00400 (reserved) [ 0.000000] BIOS-e820: 00000000fed10000 - 00000000fed14000 (reserved) [ 0.000000] BIOS-e820: 00000000fed18000 - 00000000fed1a000 (reserved) [ 0.000000] BIOS-e820: 00000000fed1c000 - 00000000fed90000 (reserved) [ 0.000000] BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved) [ 0.000000] BIOS-e820: 00000000ff800000 - 0000000100000000 (reserved) [ 0.000000] DMI present. [ 0.000000] Phoenix BIOS detected: BIOS may corrupt low RAM, working it around. [ 0.000000] last_pfn = 0xbbc00 max_arch_pfn = 0x1000000 [ 0.000000] Scanning 0 areas for low memory corruption [ 0.000000] modified physical RAM map: [ 0.000000] modified: 0000000000000000 - 0000000000010000 (reserved) [ 0.000000] modified: 0000000000010000 - 000000000009d400 (usable) [ 0.000000] modified: 000000000009d400 - 00000000000a0000 (reserved) [ 0.000000] modified: 00000000000d2000 - 00000000000d4000 (reserved) [ 0.000000] modified: 00000000000e4000 - 0000000000100000 (reserved) [ 0.000000] modified: 0000000000100000 - 00000000bb6a1000 (usable) [ 0.000000] modified: 00000000bb6a1000 - 00000000bb6a7000 (reserved) [ 0.000000] modified: 00000000bb6a7000 - 00000000bb7bc000 (usable) [ 0.000000] modified: 00000000bb7bc000 - 00000000bb80f000 (reserved) [ 0.000000] modified: 00000000bb80f000 - 00000000bb908000 (usable) [ 0.000000] modified: 00000000bb908000 - 00000000bbb0f000 (reserved) [ 0.000000] modified: 00000000bbb0f000 - 00000000bbb18000 (usable) [ 0.000000] modified: 00000000bbb18000 - 00000000bbb1f000 (reserved) [ 0.000000] modified: 00000000bbb1f000 - 00000000bbb64000 (usable) [ 0.000000] modified: 00000000bbb64000 - 00000000bbb9f000 (ACPI NVS) [ 0.000000] modified: 00000000bbb9f000 - 00000000bbbe2000 (usable) [ 0.000000] modified: 00000000bbbe2000 - 00000000bbbff000 (ACPI data) [ 0.000000] modified: 00000000bbbff000 - 00000000bbc00000 (usable) [ 0.000000] modified: 00000000bbc00000 - 00000000bbe00000 (reserved) [ 0.000000] modified: 00000000bc000000 - 00000000c0000000 (reserved) [ 0.000000] modified: 00000000e0000000 - 00000000f0000000 (reserved) [ 0.000000] modified: 00000000fec00000 - 00000000fec10000 (reserved) [ 0.000000] modified: 00000000fed00000 - 00000000fed00400 (reserved) [ 0.000000] modified: 00000000fed10000 - 00000000fed14000 (reserved) [ 0.000000] modified: 00000000fed18000 - 00000000fed1a000 (reserved) [ 0.000000] modified: 00000000fed1c000 - 00000000fed90000 (reserved) [ 0.000000] modified: 00000000fee00000 - 00000000fee01000 (reserved) [ 0.000000] modified: 00000000ff800000 - 0000000100000000 (reserved) [ 0.000000] kernel direct mapping tables up to 377fe000 @ 10000-16000 [ 0.000000] NX (Execute Disable) protection: active [ 0.000000] RAMDISK: 352bd000 - 37fef525 [ 0.000000] Allocated new RAMDISK: 0087e000 - 035b0525 [ 0.000000] Move RAMDISK from 00000000352bd000 - 0000000037fef524 to 0087e000 - 035b0524 [ 0.000000] ACPI: RSDP 000F6D60, 0024 (r2 PTLTD ) ... I'd be happy to provide any more info in order to find the solution. Thank you in advance. -- Ubuntu kernel doesn't support >=4GB memory https://bugs.launchpad.net/bugs/74179 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
