vchikarin

Имеем тачку с 4 Gb ОЗУ 4 планки по 1 Гб. На машине стоит Debian 4.0 Сначала заметили, что машина видит всего 3 Гб памяти, стали разбираться выяснилось что в биос необходимо было включить Remap памяти. После включения этой опции биос стал видеть 4 Гб, однако в Debian стало всего 2. команда dsmsg выводит вот что Linux version 2.6.18-5-686 (Debian 2.6.18.dfsg.1-17) (dannf@debian.org) (gcc ver sion 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)) #1 SMP Mon Dec 24 16:41:07 U TC 2007 BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 000000000009fc00 (usable) BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved) BIOS-e820: 00000000000e4000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 000000007ff90000 (usable) BIOS-e820: 000000007ff90000 - 000000007ff9e000 (ACPI data) BIOS-e820: 000000007ff9e000 - 000000007ffe0000 (ACPI NVS) BIOS-e820: 000000007ffe0000 - 0000000080000000 (reserved) BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved) BIOS-e820: 00000000ffb00000 - 0000000100000000 (reserved) BIOS-e820: 0000000100000000 - 0000000180000000 (usable) Warning only 4GB will be used. Use a PAE enabled kernel. 3200MB HIGHMEM available. 896MB LOWMEM available. found SMP MP-table at 000ff780 On node 0 totalpages: 1048576 DMA zone: 4096 pages, LIFO batch:0 Normal zone: 225280 pages, LIFO batch:31 HighMem zone: 819200 pages, LIFO batch:31 DMI 2.4 present. ACPI: RSDP (v000 ACPIAM ) @ 0x000fa9b0 ACPI: RSDT (v001 MSTEST TESTONLY 0x11000709 MSFT 0x00000097) @ 0x7ff90000 ACPI: FADT (v002 MSTEST OEMFACP 0x11000709 MSFT 0x00000097) @ 0x7ff90200 ACPI: MADT (v001 MSTEST OEMAPIC 0x11000709 MSFT 0x00000097) @ 0x7ff90390 ACPI: MCFG (v001 MSTEST OEMMCFG 0x11000709 MSFT 0x00000097) @ 0x7ff90400 ACPI: OEMB (v001 MSTEST AMI_OEM 0x11000709 MSFT 0x00000097) @ 0x7ff9e040 ACPI: HPET (v001 MSTEST OEMHPET 0x11000709 MSFT 0x00000097) @ 0x7ff99550 ACPI: DSDT (v001 A0545 A0545000 0x00000000 INTL 0x20060113) @ 0x00000000 ACPI: PM-Timer IO Port: 0x808 ACPI: Local APIC address 0xfee00000 ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled) Processor #0 6:15 APIC version 20 ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled) Processor #1 6:15 APIC version 20 ACPI: LAPIC (acpi_id[0x03] lapic_id[0x82] disabled) ACPI: LAPIC (acpi_id[0x04] lapic_id[0x83] disabled) ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0]) IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-23 ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) ACPI: IRQ0 used by override. ACPI: IRQ2 used by override. ACPI: IRQ9 used by override. Enabling APIC mode: Flat. Using 1 I/O APICs ACPI: HPET id: 0x8086a202 base: 0xfed00000 Using ACPI (MADT) for SMP configuration information Allocating PCI resources starting at 88000000 (gap: 80000000:7ee00000) Detected 2662.582 MHz processor. Built 1 zonelists. Total pages: 1048576 Kernel command line: root=/dev/sda1 ro mapped APIC to ffffd000 (fee00000) mapped IOAPIC to ffffc000 (fec00000) Enabling fast FPU save and restore... done. Enabling unmasked SIMD FPU exception support... done. Initializing CPU#0 PID hash table entries: 4096 (order: 12, 16384 bytes) Console: colour VGA+ 80x25 Dentry cache hash table entries: 131072 (order: 7, 524288 bytes) Inode-cache hash table entries: 65536 (order: 6, 262144 bytes) Memory: 2054716k/4194304k available (1541k kernel code, 40680k reserved, 576k data, 196k init, 1179200k highmem) ... Подскажите в чем проблема, я в Линуксе новичок, может какую опцию в ядре включить надо?