왜 16GB RAM 중 7개에만 액세스할 수 있나요?

왜 16GB RAM 중 7개에만 액세스할 수 있나요?

FM2+ AMD A10-7700K APU 빌드가 있습니다.

4개의 물리적 RAM 슬롯이 각각 4GB로 채워집니다. 총 16GB

SSD 드라이브 2개; 120GB(OS 포함) 및 256GB 데이터

나는 몇 년 동안 이 컴퓨터에서 Cinnamon Mint 데스크톱을 실행해 왔습니다.

방금 OS가 포함된 120GB 드라이브를 새 장치로 교체했습니다.

Mint 19를 다시 설치했습니다. 표준 정상.

이제 나는 / 시스템이 내 16GB RAM 중 6.9GB를 사용하고 있음을 확인했습니다.

즉, 터미널 htop/top 또는 데스크탑 "시스템 모니터"를 통해 6.9Gib가 표시됩니다.

여기에 이미지 설명을 입력하세요 여기에 이미지 설명을 입력하세요

여기에 이미지 설명을 입력하세요

신기하게도...

lshw6909MiB를 반환합니다.

반면 sudo lshw16GiB를 반환합니다.

RAM의 전체 용량을 다시 사용할 수 있도록 이 문제를 어떻게 해결해야 합니까?

관련 진단은 다음과 같습니다.

oracle@oracle:~$ lshw -C memory


WARNING: you should run this program as super-user.
  *-memory                  
       description: System memory
       physical id: 0
       size: 6909MiB
WARNING: output may be incomplete or inaccurate, you should run this program as super-user.


oracle@oracle:~$ sudo lshw -C memory

  *-memory
       description: System Memory
       physical id: 24
       slot: System board or motherboard
       size: 16GiB
     *-bank:0
          description: DIMM DDR3 Synchronous Unbuffered (Unregistered) 1600 MHz (0.6 ns)
          product: BLS4G3D18ADS3.16FE
          vendor: Undefined
          physical id: 0
          serial: 5951031B
          slot: DIMM_A1
          size: 4GiB
          width: 64 bits
          clock: 1600MHz (0.6ns)
     *-bank:1
          description: DIMM DDR3 Synchronous Unbuffered (Unregistered) 1866 MHz (0.5 ns)
          product: BLS4G3D18ADS3.16FE
          vendor: Undefined
          physical id: 1
          serial: 5951034A
          slot: DIMM_A2
          size: 4GiB
          width: 64 bits
          clock: 1866MHz (0.5ns)
     *-bank:2
          description: DIMM DDR3 Synchronous Unbuffered (Unregistered) 1600 MHz (0.6 ns)
          product: BLS4G3D1609DS1S00.
          vendor: Undefined
          physical id: 2
          serial: AD0195EA
          slot: DIMM_B1
          size: 4GiB
          width: 64 bits
          clock: 1600MHz (0.6ns)
     *-bank:3
          description: DIMM DDR3 Synchronous Unbuffered (Unregistered) 1866 MHz (0.5 ns)
          product: BLS4G3D1609DS1S00.
          vendor: Undefined
          physical id: 3
          serial: A015A6F5
          slot: DIMM_B2
          size: 4GiB
          width: 64 bits
          clock: 1866MHz (0.5ns)
  *-cache:0
       description: L1 cache
       physical id: 32
       slot: L1 CACHE
       size: 256KiB
       capacity: 256KiB
       clock: 1GHz (1.0ns)
       capabilities: pipeline-burst internal write-back unified
       configuration: level=1
  *-cache:1
       description: L2 cache
       physical id: 33
       slot: L2 CACHE
       size: 4MiB
       capacity: 4MiB
       clock: 1GHz (1.0ns)
       capabilities: pipeline-burst internal write-back unified
       configuration: level=2


oracle@oracle:~$ cat /proc/meminfo


MemTotal:        7075532 kB
MemFree:         1287176 kB
MemAvailable:    3876744 kB
Buffers:          132812 kB
Cached:          2756456 kB
SwapCached:            0 kB
Active:          2950656 kB
Inactive:        2380020 kB
Active(anon):    2397828 kB
Inactive(anon):   205576 kB
Active(file):     552828 kB
Inactive(file):  2174444 kB
Unevictable:          48 kB
Mlocked:              48 kB
SwapTotal:       7519228 kB
SwapFree:        7519228 kB
Dirty:               640 kB
Writeback:             0 kB
AnonPages:       2441496 kB
Mapped:           554940 kB
Shmem:            228476 kB
Slab:             219512 kB
SReclaimable:     159268 kB
SUnreclaim:        60244 kB
KernelStack:       10752 kB
PageTables:        65192 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    11056992 kB
Committed_AS:    9344292 kB
VmallocTotal:   34359738367 kB
VmallocUsed:           0 kB
VmallocChunk:          0 kB
HardwareCorrupted:     0 kB
AnonHugePages:     14336 kB
ShmemHugePages:        0 kB
ShmemPmdMapped:        0 kB
CmaTotal:              0 kB
CmaFree:               0 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:      352868 kB
DirectMap2M:     6926336 kB
DirectMap1G:           0 kB



oracle@oracle:~$ egrep "model name|address" /proc/cpuinfo


model name  : AMD A10-7700K APU with Radeon(TM) R7 Graphics
address sizes   : 48 bits physical, 48 bits virtual
model name  : AMD A10-7700K APU with Radeon(TM) R7 Graphics
address sizes   : 48 bits physical, 48 bits virtual
model name  : AMD A10-7700K APU with Radeon(TM) R7 Graphics
address sizes   : 48 bits physical, 48 bits virtual
model name  : AMD A10-7700K APU with Radeon(TM) R7 Graphics
address sizes   : 48 bits physical, 48 bits virtual


oracle@oracle:~$ uname -a


Linux oracle 4.15.0-70-generic #79-Ubuntu SMP Tue Nov 12 10:36:11 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
oracle@oracle:~$ cat /etc/*release
DISTRIB_ID=LinuxMint
DISTRIB_RELEASE=19
DISTRIB_CODENAME=tara
DISTRIB_DESCRIPTION="Linux Mint 19 Tara"
NAME="Linux Mint"
VERSION="19 (Tara)"
ID=linuxmint
ID_LIKE=ubuntu
PRETTY_NAME="Linux Mint 19"
VERSION_ID="19"
HOME_URL="https://www.linuxmint.com/"
SUPPORT_URL="https://forums.ubuntu.com/"
BUG_REPORT_URL="http://linuxmint-troubleshooting-guide.readthedocs.io/en/latest/"
PRIVACY_POLICY_URL="https://www.linuxmint.com/"
VERSION_CODENAME=tara
UBUNTU_CODENAME=bionic
cat: /etc/upstream-release: Is a directory


oracle@oracle:~$ free


              total        used        free      shared  buff/cache   available
Mem:        7075532     2759988     1274080      218636     3041464     3866492
Swap:       7519228           0     7519228



oracle@oracle:~$ sudo dmidecode -t memory


# dmidecode 3.1
Getting SMBIOS data from sysfs.
SMBIOS 2.7 present.

Handle 0x0024, DMI type 16, 23 bytes
Physical Memory Array
    Location: System Board Or Motherboard
    Use: System Memory
    Error Correction Type: None
    Maximum Capacity: 16 GB
    Error Information Handle: Not Provided
    Number Of Devices: 4

Handle 0x0026, DMI type 17, 34 bytes
Memory Device
    Array Handle: 0x0024
    Error Information Handle: Not Provided
    Total Width: 64 bits
    Data Width: 64 bits
    Size: 4096 MB
    Form Factor: DIMM
    Set: None
    Locator: DIMM_A1
    Bank Locator: A1_BANK0
    Type: DDR3
    Type Detail: Synchronous Unbuffered (Unregistered)
    Speed: 1600 MT/s
    Manufacturer: Undefined       
    Serial Number: 5951031B  
    Asset Tag: A1_AssetTagNum1
    Part Number: BLS4G3D18ADS3.16FE
    Rank: 2
    Configured Clock Speed: 1600 MT/s

Handle 0x0028, DMI type 17, 34 bytes
Memory Device
    Array Handle: 0x0024
    Error Information Handle: Not Provided
    Total Width: 64 bits
    Data Width: 64 bits
    Size: 4096 MB
    Form Factor: DIMM
    Set: None
    Locator: DIMM_A2
    Bank Locator: A1_BANK1
    Type: DDR3
    Type Detail: Synchronous Unbuffered (Unregistered)
    Speed: 1866 MT/s
    Manufacturer: Undefined       
    Serial Number: 5951034A  
    Asset Tag: A1_AssetTagNum0
    Part Number: BLS4G3D18ADS3.16FE
    Rank: 2
    Configured Clock Speed: 1600 MT/s

Handle 0x002A, DMI type 17, 34 bytes
Memory Device
    Array Handle: 0x0024
    Error Information Handle: Not Provided
    Total Width: 64 bits
    Data Width: 64 bits
    Size: 4096 MB
    Form Factor: DIMM
    Set: None
    Locator: DIMM_B1
    Bank Locator: A1_BANK2
    Type: DDR3
    Type Detail: Synchronous Unbuffered (Unregistered)
    Speed: 1600 MT/s
    Manufacturer: Undefined       
    Serial Number: AD0195EA  
    Asset Tag: A1_AssetTagNum2
    Part Number: BLS4G3D1609DS1S00.
    Rank: 2
    Configured Clock Speed: 1600 MT/s

Handle 0x002C, DMI type 17, 34 bytes
Memory Device
    Array Handle: 0x0024
    Error Information Handle: Not Provided
    Total Width: 64 bits
    Data Width: 64 bits
    Size: 4096 MB
    Form Factor: DIMM
    Set: None
    Locator: DIMM_B2
    Bank Locator: A1_BANK3
    Type: DDR3
    Type Detail: Synchronous Unbuffered (Unregistered)
    Speed: 1866 MT/s
    Manufacturer: Undefined       
    Serial Number: A015A6F5  
    Asset Tag: A1_AssetTagNum3
    Part Number: BLS4G3D1609DS1S00.
    Rank: 2
    Configured Clock Speed: 1600 MT/s


oracle@oracle:~$ lspci


00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) Processor Root Complex
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Kaveri [Radeon R7 Graphics]
00:01.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Kaveri HDMI/DP Audio Controller
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) Processor Root Port
00:02.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1425
00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) Processor Root Port
00:04.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) Processor Root Port
00:10.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller (rev 09)
00:10.1 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI Controller (rev 09)
00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] (rev 40)
00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB OHCI Controller (rev 11)
00:12.2 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller (rev 11)
00:13.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB OHCI Controller (rev 11)
00:13.2 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI Controller (rev 11)
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 16)
00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD] FCH Azalia Controller (rev 01)
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge (rev 11)
00:14.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] FCH PCI Bridge (rev 40)
00:15.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] Hudson PCI to PCI bridge (PCIE port 0)
00:15.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] Hudson PCI to PCI bridge (PCIE port 2)
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) Processor Function 0
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) Processor Function 1
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) Processor Function 2
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) Processor Function 3
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) Processor Function 4
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Family 15h (Models 30h-3fh) Processor Function 5
01:00.0 VGA compatible controller: NVIDIA Corporation GP107 [GeForce GTX 1050] (rev a1)
01:00.1 Audio device: NVIDIA Corporation GP107GL High Definition Audio Controller (rev a1)
04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)


oracle@oracle:~$ lspci -v -s 01:00.0


01:00.0 VGA compatible controller: NVIDIA Corporation GP107 [GeForce GTX 1050] (rev a1) (prog-if 00 [VGA controller])
    Subsystem: Gigabyte Technology Co., Ltd GP107 [GeForce GTX 1050]
    Flags: bus master, fast devsel, latency 0, IRQ 42
    Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
    Memory at e0000000 (64-bit, prefetchable) [size=256M]
    Memory at f0000000 (64-bit, prefetchable) [size=32M]
    I/O ports at e000 [size=128]
    [virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
    Capabilities: <access denied>
    Kernel driver in use: nvidia
    Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia


oracle@oracle:~$ sudo lspci -v -s 01:00.0


01:00.0 VGA compatible controller: NVIDIA Corporation GP107 [GeForce GTX 1050] (rev a1) (prog-if 00 [VGA controller])
    Subsystem: Gigabyte Technology Co., Ltd GP107 [GeForce GTX 1050]
    Flags: bus master, fast devsel, latency 0, IRQ 42
    Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
    Memory at e0000000 (64-bit, prefetchable) [size=256M]
    Memory at f0000000 (64-bit, prefetchable) [size=32M]
    I/O ports at e000 [size=128]
    [virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
    Capabilities: [60] Power Management version 3
    Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
    Capabilities: [78] Express Legacy Endpoint, MSI 00
    Capabilities: [100] Virtual Channel
    Capabilities: [250] Latency Tolerance Reporting
    Capabilities: [128] Power Budgeting <?>
    Capabilities: [420] Advanced Error Reporting
    Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1 Len=024 <?>
    Kernel driver in use: nvidia
    Kernel modules: nvidiafb, nouveau, nvidia_drm, nvidia


oracle@oracle:~$ glxinfo | egrep -i 'device|memory'


    GLX_NV_robustness_video_memory_purge, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer, 
    GLX_NV_robustness_video_memory_purge, GLX_NV_swap_group, 
    GLX_NV_robustness_video_memory_purge, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer, 
Memory info (GL_NVX_gpu_memory_info):
    Dedicated video memory: 2048 MB
    Total available memory: 2048 MB
    Currently available dedicated video memory: 516 MB
    GL_EXT_import_sync_object, GL_EXT_memory_object, GL_EXT_memory_object_fd, 
    GL_NVX_conditional_render, GL_NVX_gpu_memory_info, GL_NVX_nvenc_interop, 
    GL_NV_light_max_exponent, GL_NV_memory_attachment, 
    GL_NV_register_combiners2, GL_NV_robustness_video_memory_purge, 
    GL_NV_transform_feedback2, GL_NV_uniform_buffer_unified_memory, 
    GL_NV_vertex_buffer_unified_memory, GL_NV_vertex_program, 
    GL_EXT_import_sync_object, GL_EXT_memory_object, GL_EXT_memory_object_fd, 
    GL_NVX_conditional_render, GL_NVX_gpu_memory_info, GL_NVX_nvenc_interop, 
    GL_NV_light_max_exponent, GL_NV_memory_attachment, 
    GL_NV_register_combiners2, GL_NV_robustness_video_memory_purge, 
    GL_NV_transform_feedback2, GL_NV_uniform_buffer_unified_memory, 
    GL_NV_vertex_buffer_unified_memory, GL_NV_vertex_program, 
    GL_EXT_map_buffer_range, GL_EXT_memory_object, GL_EXT_memory_object_fd, 
    GL_NV_internalformat_sample_query, GL_NV_memory_attachment, 


oracle@oracle:~$ grep -i memory /var/log/Xorg.0.log


[     8.238] (--) NVIDIA(0): Memory: 2097152 kBytes
[     8.284] (II) NVIDIA: Using 24576.00 MB of virtual memory for indirect memory
[     8.372] (==) NVIDIA(0): Disabling shared memory pixmaps

답변1

결국... 문제의 RAM을 다른 컴퓨터로 교체했습니다. 거기도 죽었어. 물리적 하드웨어 문제였던 것 같습니다. 아무래도 SSD 교체를 하면서 토스트한 게 틀림없죠? 기이한. 도와 주셔서 감사합니다!

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