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кто украл ≈300 MiB оперативной памяти?

 


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Linux sinx 3.17.2-1-ARCH #1 SMP PREEMPT Thu Oct 30 20:49:39 CET 2014 x86_64 GNU/Linux
*-memory
          description: System Memory
          physical id: 5f
          slot: System board or motherboard
          size: 12GiB
        *-bank:0
             description: DIMM DDR3 Synchronous 1600 MHz (0,6 ns)
             product: 9905402-412.A00LF
             vendor: Kingston
             physical id: 0
             serial: 412C2751
             slot: ChannelA-DIMM0
             size: 2GiB
             width: 64 bits
             clock: 1600MHz (0.6ns)
        *-bank:1
             description: DIMM DDR3 Synchronous 1600 MHz (0,6 ns)
             product: KHX1600C9D3/4GX
             vendor: Kingston
             physical id: 1
             serial: D9289AFA
             slot: ChannelA-DIMM1
             size: 4GiB
             width: 64 bits
             clock: 1600MHz (0.6ns)
        *-bank:2
             description: DIMM DDR3 Synchronous 1600 MHz (0,6 ns)
             product: 9905402-412.A00LF
             vendor: Kingston
             physical id: 2
             serial: 412C0583
             slot: ChannelB-DIMM0
             size: 2GiB
             width: 64 bits
             clock: 1600MHz (0.6ns)
        *-bank:3
             description: DIMM DDR3 Synchronous 1600 MHz (0,6 ns)
             product: KHX1600C9D3/4GX
             vendor: Kingston
             physical id: 3
             serial: D6289CFA
             slot: ChannelB-DIMM1
             size: 4GiB
             width: 64 bits
             clock: 1600MHz (0.6ns)

[tm4ig@sinx ~]$ cat /proc/meminfo | head -n 1
MemTotal:       12276492 kB

В биос определяются все 12288MiB
Я так понимаю, вероятно, память на что-то резервируется, как узнать на что именно?

★

Последнее исправление: tm4ig (всего исправлений: 2)
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Ответ на: комментарий от KblCb

видюха дискретная (nvidia GTX670), проц intel i5 2500k содержит графические ядро, но мать это видео не поддерживает (чипсет p67)

tm4ig ★
() автор топика

Ядро под себя какой-то процент памяти резервирует ЕМНИП. Также есть вариант что интеграшка забрала, как собака на сене - сама не может использовать и другим не даст.

peregrine ★★★★★
()
Ответ на: комментарий от tm4ig

Интеграшки нет

Шина памяти как раз в камне. Может Intel гвоздями прибил диапазон для видеопамяти и на возможности чипсета ему забить.

tlx ★★★★★
()
Ответ на: комментарий от tlx

Может здесь есть подсказка? 

[tm4ig@sinx ~]$ dmesg | grep -i 'memory\|reserved'
[    0.000000] BIOS-e820: [mem 0x000000000009f000-0x000000000009ffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000debd1000-0x00000000dec00fff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000dec16000-0x00000000dee08fff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000dee8d000-0x00000000df13ffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000f8000000-0x00000000fbffffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fec00000-0x00000000fec00fff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fed00000-0x00000000fed03fff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1ffff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000fee00000-0x00000000fee00fff] reserved
[    0.000000] BIOS-e820: [mem 0x00000000ff000000-0x00000000ffffffff] reserved
[    0.000000] e820: update [mem 0x00000000-0x00000fff] usable ==> reserved
[    0.000000] e820: update [mem 0xe0000000-0xffffffff] usable ==> reserved
[    0.000000] Scanning 1 areas for low memory corruption
[    0.000000] Base memory trampoline at [ffff880000095000] 95000 size 24576
[    0.000000] init_memory_mapping: [mem 0x00000000-0x000fffff]
[    0.000000] init_memory_mapping: [mem 0x31ee00000-0x31effffff]
[    0.000000] init_memory_mapping: [mem 0x31c000000-0x31edfffff]
[    0.000000] init_memory_mapping: [mem 0x300000000-0x31bffffff]
[    0.000000] init_memory_mapping: [mem 0x00100000-0xdeb8ffff]
[    0.000000] init_memory_mapping: [mem 0xdf408000-0xdf7fffff]
[    0.000000] init_memory_mapping: [mem 0x100000000-0x2ffffffff]
[    0.000000] Early memory node ranges
[    0.000000]   DMA zone: 48 pages reserved
[    0.000000] PM: Registered nosave memory: [mem 0x0009f000-0x0009ffff]
[    0.000000] PM: Registered nosave memory: [mem 0x000a0000-0x000fffff]
[    0.000000] PM: Registered nosave memory: [mem 0xdeb90000-0xdebd0fff]
[    0.000000] PM: Registered nosave memory: [mem 0xdebd1000-0xdec00fff]
[    0.000000] PM: Registered nosave memory: [mem 0xdec01000-0xdec15fff]
[    0.000000] PM: Registered nosave memory: [mem 0xdec16000-0xdee08fff]
[    0.000000] PM: Registered nosave memory: [mem 0xdee09000-0xdee8cfff]
[    0.000000] PM: Registered nosave memory: [mem 0xdee8d000-0xdf13ffff]
[    0.000000] PM: Registered nosave memory: [mem 0xdf140000-0xdf384fff]
[    0.000000] PM: Registered nosave memory: [mem 0xdf385000-0xdf392fff]
[    0.000000] PM: Registered nosave memory: [mem 0xdf393000-0xdf3bffff]
[    0.000000] PM: Registered nosave memory: [mem 0xdf3c0000-0xdf3c4fff]
[    0.000000] PM: Registered nosave memory: [mem 0xdf3c5000-0xdf407fff]
[    0.000000] PM: Registered nosave memory: [mem 0xdf800000-0xf7ffffff]
[    0.000000] PM: Registered nosave memory: [mem 0xf8000000-0xfbffffff]
[    0.000000] PM: Registered nosave memory: [mem 0xfc000000-0xfebfffff]
[    0.000000] PM: Registered nosave memory: [mem 0xfec00000-0xfec00fff]
[    0.000000] PM: Registered nosave memory: [mem 0xfec01000-0xfecfffff]
[    0.000000] PM: Registered nosave memory: [mem 0xfed00000-0xfed03fff]
[    0.000000] PM: Registered nosave memory: [mem 0xfed04000-0xfed1bfff]
[    0.000000] PM: Registered nosave memory: [mem 0xfed1c000-0xfed1ffff]
[    0.000000] PM: Registered nosave memory: [mem 0xfed20000-0xfedfffff]
[    0.000000] PM: Registered nosave memory: [mem 0xfee00000-0xfee00fff]
[    0.000000] PM: Registered nosave memory: [mem 0xfee01000-0xfeffffff]
[    0.000000] PM: Registered nosave memory: [mem 0xff000000-0xffffffff]
[    0.000000] Memory: 12059364K/12549272K available (5381K kernel code, 909K rwdata, 1712K rodata, 1140K init, 1176K bss, 489908K reserved)
[    0.000000] please try 'cgroup_disable=memory' option if you don't want memory cgroups
[    0.233618] Initializing cgroup subsys memory
[    0.233737] Freeing SMP alternatives memory: 20K (ffffffff81a02000 - ffffffff81a07000)
[    0.348018] PCI: MMCONFIG at [mem 0xf8000000-0xfbffffff] reserved in E820
[    0.467178] system 00:00: [mem 0xfed40000-0xfed44fff] has been reserved
[    0.467241] system 00:01: [io  0x0680-0x069f] has been reserved
[    0.467243] system 00:01: [io  0x0200-0x020f] has been reserved
[    0.467244] system 00:01: [io  0xffff] has been reserved
[    0.467247] system 00:01: [io  0xffff] has been reserved
[    0.467248] system 00:01: [io  0x0400-0x0453] could not be reserved
[    0.467250] system 00:01: [io  0x0458-0x047f] has been reserved
[    0.467251] system 00:01: [io  0x0500-0x057f] has been reserved
[    0.467252] system 00:01: [io  0x164e-0x164f] has been reserved
[    0.467313] system 00:03: [io  0x0454-0x0457] has been reserved
[    0.467376] system 00:04: [io  0x0290-0x029f] has been reserved
[    0.467419] system 00:05: [io  0x04d0-0x04d1] has been reserved
[    0.467782] system 00:07: [mem 0xfed1c000-0xfed1ffff] has been reserved
[    0.467784] system 00:07: [mem 0xfed10000-0xfed17fff] has been reserved
[    0.467785] system 00:07: [mem 0xfed18000-0xfed18fff] has been reserved
[    0.467787] system 00:07: [mem 0xfed19000-0xfed19fff] has been reserved
[    0.467788] system 00:07: [mem 0xf8000000-0xfbffffff] has been reserved
[    0.467789] system 00:07: [mem 0xfed20000-0xfed3ffff] has been reserved
[    0.467791] system 00:07: [mem 0xfed90000-0xfed93fff] has been reserved
[    0.467792] system 00:07: [mem 0xfed45000-0xfed8ffff] has been reserved
[    0.467794] system 00:07: [mem 0xff000000-0xffffffff] has been reserved
[    0.467795] system 00:07: [mem 0xfee00000-0xfeefffff] could not be reserved
[    0.467797] system 00:07: [mem 0xe0000000-0xe0000fff] has been reserved
[    0.793120] Freeing initrd memory: 6664K (ffff8800372ec000 - ffff88003796e000)
[    0.793451] Scanning for low memory corruption every 60 seconds
[    0.822441] Freeing unused kernel memory: 1140K (ffffffff818e5000 - ffffffff81a02000)
[    0.825250] Freeing unused kernel memory: 752K (ffff880010544000 - ffff880010600000)
[    0.826412] Freeing unused kernel memory: 336K (ffff8800107ac000 - ffff880010800000)

tm4ig ★
() автор топика
Ответ на: комментарий от tm4ig

Когда-то давно стояла винда второй системой на этом же системнике, там под оборудование было зарезервировано что-то около 20MiB

tm4ig ★
() автор топика
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