On Mon 26-05-14 11:26:57, Doug Morse wrote: [...] > [ 0.000000] e820: BIOS-provided physical RAM map: > [ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009e7ff] usable > [ 0.000000] BIOS-e820: [mem 0x000000000009e800-0x000000000009ffff] reserved > [ 0.000000] BIOS-e820: [mem 0x00000000000e0000-0x00000000000fffff] reserved > [ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000ae482fff] usable > [ 0.000000] BIOS-e820: [mem 0x00000000ae483000-0x00000000aea40fff] reserved > [ 0.000000] BIOS-e820: [mem 0x00000000aea41000-0x00000000aee38fff] ACPI NVS > [ 0.000000] BIOS-e820: [mem 0x00000000aee39000-0x00000000af158fff] reserved > [ 0.000000] BIOS-e820: [mem 0x00000000af159000-0x00000000af159fff] usable > [ 0.000000] BIOS-e820: [mem 0x00000000af15a000-0x00000000af35ffff] ACPI NVS > [ 0.000000] BIOS-e820: [mem 0x00000000af360000-0x00000000af7fffff] usable > [ 0.000000] BIOS-e820: [mem 0x00000000f8000000-0x00000000fbffffff] reserved > [ 0.000000] BIOS-e820: [mem 0x00000000fec00000-0x00000000fec00fff] reserved > [ 0.000000] BIOS-e820: [mem 0x00000000fec10000-0x00000000fec10fff] reserved > [ 0.000000] BIOS-e820: [mem 0x00000000fec20000-0x00000000fec20fff] reserved > [ 0.000000] BIOS-e820: [mem 0x00000000fed00000-0x00000000fed00fff] reserved > [ 0.000000] BIOS-e820: [mem 0x00000000fed61000-0x00000000fed70fff] reserved > [ 0.000000] BIOS-e820: [mem 0x00000000fed80000-0x00000000fed8ffff] reserved > [ 0.000000] BIOS-e820: [mem 0x00000000fef00000-0x00000000ffffffff] reserved > [ 0.000000] BIOS-e820: [mem 0x0000000100001000-0x000000024fffffff] usable > [ 0.000000] NX (Execute Disable) protection: active > [ 0.000000] SMBIOS 2.7 present. > [ 0.000000] DMI: Gigabyte Technology Co., Ltd. To be filled by O.E.M./970A-UD3, BIOS FC 01/28/2013 > [ 0.000000] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved > [ 0.000000] e820: remove [mem 0x000a0000-0x000fffff] usable > [ 0.000000] No AGP bridge found > [ 0.000000] e820: last_pfn = 0x250000 max_arch_pfn = 0x400000000 last_pfn (last page frame number) is 0x250000 which means that ~9GB worth of pages can be present at maximum. The value is derived from the e820 map provided by the kernel. So I would check the BIOS why it doesn't tell the system about addresses above 9GB. I am not familiar with lshw to tell you why it sees more memory. -- Michal Hocko SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>