Guten Morgen, ich betreibe KUbuntu 20.04 auf einem Lenovo X201i. Der hatte bisher 4GB, was häufig zum Besuch des OOM-KILLERs geführt hat. Ein Kollege hat mir 2x8GB SO-DIMMs gegeben. Der Memorycontroller des X201i kann aber nur 8GB verwalten. Wenn mehr Speicher benötigt wird, crasht der Laptop. Wahrscheinlich, wenn die 'oberen' 8GB beschrieben werden. Wie kann ich über Kernel-Boot-Parameter bewirken, dass nur die unteren 8GB verwendet werden? Für eine 10J alte Maschine neuen Speicher zu kaufen, erscheint nicht wirklich wirtschaftlich, so dass ich gerne die 16GB mit einer Begrenzung auf 8GB verwenden würde. mem=8G oder memmap=08G@00G hat nicht geholfen. entweder kein Boot oder keine Grafik...
viele Grüße Arno
Experts, I run Kubuntu 20.04, stock kernel on a Lenovo X201i. I have 4G of ram and get frequent visits by the oom-killer. A co-worker gave me two 8G SO-DIMMs. Problem is, the X201i detects 16GB but can only use 8GB due to memory controller not supporting more ram. So, when the X201i starts using more mem, probably reaching the 8GB border, it crashes. Buying 2x4GB SO-DIMM for a 10 year old machine seems not too economical as the mem still costs aroung 40-50 Euros. Is it possible to prevent the usage of the 'upper' 8GB? I tried mem=8GB and memmap=08GB@00GB without success. I either get funny colors or no boot at all.
Best regards, have a nice weekend Arno
dmidecode yields this dmidecode 3.2
Getting SMBIOS data from sysfs. SMBIOS 2.6 present.
Handle 0x0007, DMI type 5, 20 bytes Memory Controller Information Error Detecting Method: None Error Correcting Capabilities: None Supported Interleave: One-way Interleave Current Interleave: One-way Interleave Maximum Memory Module Size: 4096 MB Maximum Total Memory Size: 8192 MB Supported Speeds: Other Supported Memory Types: DIMM SDRAM Memory Module Voltage: 2.9 V Associated Memory Slots: 2 0x0008 0x0009 Enabled Error Correcting Capabilities: Unknown
Handle 0x0008, DMI type 6, 12 bytes Memory Module Information Socket Designation: DIMM Slot 1 Bank Connections: 0 1 Current Speed: 43 ns Type: DIMM SDRAM Installed Size: 8192 MB (Double-bank Connection) Enabled Size: 8192 MB (Double-bank Connection) Error Status: OK
Handle 0x0009, DMI type 6, 12 bytes Memory Module Information Socket Designation: DIMM Slot 2 Bank Connections: 2 3 Current Speed: 43 ns Type: DIMM SDRAM Installed Size: 8192 MB (Double-bank Connection) Enabled Size: 8192 MB (Double-bank Connection) Error Status: OK
Handle 0x002A, DMI type 16, 15 bytes Physical Memory Array Location: System Board Or Motherboard Use: System Memory Error Correction Type: None Maximum Capacity: 8 GB Error Information Handle: Not Provided Number Of Devices: 2
Handle 0x002B, DMI type 17, 28 bytes Memory Device Array Handle: 0x002A Error Information Handle: No Error Total Width: 64 bits Data Width: 64 bits Size: 8192 MB Form Factor: SODIMM Set: None Locator: DIMM 1 Bank Locator: Bank 0/1 Type: DDR3 Type Detail: Synchronous Speed: 1600 MT/s Manufacturer: 0198 Serial Number: 4B057A41 Asset Tag: 1936 Part Number: KHX1600C9S3L/8G Rank: Unknown
Handle 0x002C, DMI type 17, 28 bytes Memory Device Array Handle: 0x002A Error Information Handle: No Error Total Width: 64 bits Data Width: 64 bits Size: 8192 MB Form Factor: SODIMM Set: None Locator: DIMM 2 Bank Locator: Bank 2/3 Type: DDR3 Type Detail: Synchronous Speed: 1600 MT/s Manufacturer: 0198 Serial Number: 4C05AD41 Asset Tag: 1936 Part Number: KHX1600C9S3L/8G Rank: Unknown
uname is Linux arno-ThinkPad-X201 5.4.0-29-generic #33-Ubuntu SMP Wed Apr 29 14:32:27 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
