Date: Wed, 22 Jun 2011 02:05:14 +0000 From: "Dieter BSD" <dieterbsd@engineer.com> To: freebsd-questions@freebsd.org Subject: Re: FreeBSD reports incorrect amount of memory Message-ID: <20110622020516.320560@gmx.com>
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# dmidecode 2.11 SMBIOS 2.2 present. Handle 0x0005, DMI type 5, 24 bytes Memory Controller Information Error Detecting Method: 64-bit ECC Error Correcting Capabilities: None Supported Interleave: One-way Interleave Current Interleave: One-way Interleave Maximum Memory Module Size: 4096 MB Maximum Total Memory Size: 16384 MB Supported Speeds: 70 ns 60 ns 50 ns Supported Memory Types: Standard DIMM Memory Module Voltage: 2.9 V Associated Memory Slots: 4 0x0006 0x0007 0x0008 0x0009 Enabled Error Correcting Capabilities: None Handle 0x0006, DMI type 6, 12 bytes Memory Module Information Socket Designation: A0 Bank Connections: 0 1 Current Speed: 5 ns Type: Unknown EDO Installed Size: 8192 MB (Double-bank Connection) Enabled Size: 8192 MB (Double-bank Connection) Error Status: OK Handle 0x0007, DMI type 6, 12 bytes Memory Module Information Socket Designation: A1 Bank Connections: 2 3 Current Speed: 5 ns Type: Unknown EDO Installed Size: 8192 MB (Double-bank Connection) Enabled Size: 8192 MB (Double-bank Connection) Error Status: OK Handle 0x0008, DMI type 6, 12 bytes Memory Module Information Socket Designation: A2 Bank Connections: 4 5 Current Speed: 5 ns Type: Unknown EDO 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: A3 Bank Connections: 6 7 Current Speed: 5 ns Type: Unknown EDO Installed Size: 8192 MB (Double-bank Connection) Enabled Size: 8192 MB (Double-bank Connection) Error Status: OK Handle 0x001B, DMI type 16, 15 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 0x001C, DMI type 17, 21 bytes Memory Device Array Handle: 0x001B Error Information Handle: Not Provided Total Width: 64 bits Data Width: 64 bits Size: 8192 MB Form Factor: DIMM Set: None Locator: A0 Bank Locator: Bank0/1 Type: Unknown Type Detail: None Handle 0x001D, DMI type 17, 21 bytes Memory Device Array Handle: 0x001B Error Information Handle: Not Provided Total Width: 64 bits Data Width: 64 bits Size: 8192 MB Form Factor: DIMM Set: None Locator: A1 Bank Locator: Bank2/3 Type: Unknown Type Detail: None Handle 0x001E, DMI type 17, 21 bytes Memory Device Array Handle: 0x001B Error Information Handle: Not Provided Total Width: 64 bits Data Width: 64 bits Size: 8192 MB Form Factor: DIMM Set: None Locator: A2 Bank Locator: Bank4/5 Type: Unknown Type Detail: None Handle 0x001F, DMI type 17, 21 bytes Memory Device Array Handle: 0x001B Error Information Handle: Not Provided Total Width: 64 bits Data Width: 64 bits Size: 8192 MB Form Factor: DIMM Set: None Locator: A3 Bank Locator: Bank6/7 Type: Unknown Type Detail: None Assuming that dmidecode isn't buggy, the firmware is internally inconsistant, and very wrong. Not a surprise, the firmware is crap. Surely the kernel doesn't just believe whatever random garbage the firmware says?
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