Messages in this thread | | | Date | Fri, 14 Sep 2007 10:50:24 +0200 | From | Wojciech Kromer <> | Subject | Intel-Quad on GA-P35-S3 motherboard with 4*2GB |
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I can't see whole 8GB of ram.
With F2 BIOS release i can only work with kernel param mem=4G. After updating to F4 BIOS release I can work with mem=8G, but I see this:
# free -m total used free shared buffers cached Mem: 6473 474 5999 0 29 278
Without mem=8G kernel starts to slow down and hangs while starting filesystem. There is no message.
My whole memory was tested with memtest. Full test took about 48hour. Is it wrong?
I have: Intel(R) Core(TM)2 Quad CPU @ 2.40GHz There are 4 * 2GB / 667MHz DIMMs.
# cat /proc/iomem |grep RAM 00000000-0009f7ff : System RAM 00100000-9fedffff : System RAM 100000000-25fffffff : System RAM
# dmesg|grep BIOS-e820 BIOS-e820: 0000000000000000 - 000000000009f800 (usable) BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved) BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 000000009fee0000 (usable) BIOS-e820: 000000009fee0000 - 000000009fee3000 (ACPI NVS) BIOS-e820: 000000009fee3000 - 000000009fef0000 (ACPI data) BIOS-e820: 000000009fef0000 - 000000009ff00000 (reserved) BIOS-e820: 00000000c0000000 - 00000000c4000000 (reserved) BIOS-e820: 00000000fec00000 - 0000000100000000 (reserved) BIOS-e820: 0000000100000000 - 0000000260000000 (usable)
I can see that higer memory range was remmaped, by why accesing something greater than 100000000 is problematic? Do I need to change something i kernel configuration?
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