[Bug 219399] System panics after several hours of 14-threads-compilation orgies using poudriere on AMD Ryzen...

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219399

--- Comment #163 from Don Lewis <truckman at FreeBSD.org> ---
(In reply to Mark Millard from comment #159)
This is what dmidecode reports on my machine:
Handle 0x0027, DMI type 16, 23 bytes
Physical Memory Array
        Location: System Board Or Motherboard
        Use: System Memory
        Error Correction Type: Multi-bit ECC
        Maximum Capacity: 64 GB
        Error Information Handle: 0x0026
        Number Of Devices: 4

Handle 0x002E, DMI type 17, 40 bytes
Memory Device
        Array Handle: 0x0027
        Error Information Handle: 0x002D
        Total Width: 128 bits
        Data Width: 64 bits
        Size: 16384 MB
        Form Factor: DIMM
        Set: None
        Locator: DIMM 0
        Bank Locator: CHANNEL A
        Type: DDR4
        Type Detail: Synchronous Unbuffered (Unregistered)
        Speed: 2400 MHz
        Manufacturer: Micron Technology
        Serial Number: 14C07593
        Asset Tag: Not Specified
        Part Number: 18ASF2G72AZ-2G3B1   
        Rank: 2
        Configured Clock Speed: 2400 MHz
        Minimum Voltage: 1.2 V
        Maximum Voltage: 1.2 V
        Configured Voltage: 1.2 V
[snip]

Note the "Error Correction Type: Multi-bit ECC".  The individual DIMMs are a
bit strange.  On my other machines the ECC bits are included in "Total Width". 
I have visually verified the extra RAM chips for the ECC bits are present.

This is what I see on my FX-8320E machine:

Handle 0x002C, DMI type 16, 23 bytes
Physical Memory Array
        Location: System Board Or Motherboard
        Use: System Memory
        Error Correction Type: Multi-bit ECC
        Maximum Capacity: 32 GB
        Error Information Handle: Not Provided
        Number Of Devices: 4

Handle 0x002E, DMI type 17, 34 bytes
Memory Device
        Array Handle: 0x002C
        Error Information Handle: Not Provided
        Total Width: 72 bits
        Data Width: 64 bits
        Size: 8192 MB
        Form Factor: DIMM
        Set: None
        Locator: DIMM0
        Bank Locator: BANK0
        Type: DDR3
        Type Detail: Synchronous Unbuffered (Unregistered)
        Speed: 1600 MT/s
        Manufacturer: Micron       
        Serial Number: 0D43FEC
        Asset Tag: AssetTagNum0
        Part Number: 18JSF1G72AZ-1G6E1 
        Rank: 2
        Configured Clock Speed: 800 MT/s

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