https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=235944
Bug ID: 235944
Summary: jedec_dimm(4) does not attach to KFA2 (aka Galax) Hall
of Fame DDR4 sticks
Product: Base System
Version: CURRENT
Hardware: Any
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: [email protected]
Reporter: [email protected]
Created attachment 202271
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=202271&action=edit
thaiphoon-smbus.png
intsmb0: <AMD FCH SMBus Controller> at device 20.0 on pci0
smbus0: <System Management Bus> on intsmb0
smbus0: <unknown device> at addr 0xa4
smbus0: <unknown device> at addr 0xa6
smbus0: <unknown device> at addr 0xa2
jedec_dimm0: <DDR4 DIMM> at addr 0xa4 on smbus0
jedec_dimm0: unable to change page for offset 0x0149: 1
jedec_dimm0: unable to restore page for offset 0x0049: 1
jedec_dimm0: unable to change page for offset 0x0145: 1
jedec_dimm0: unable to restore page for offset 0x0045: 1
jedec_dimm0: failed to read TSOD Manufacturer ID
device_attach: jedec_dimm0 attach returned 1
jedec_dimm1: <DDR4 DIMM> at addr 0xa6 on smbus0
jedec_dimm1: unable to change page for offset 0x0149: 1
jedec_dimm1: unable to restore page for offset 0x0049: 1
jedec_dimm1: unable to change page for offset 0x0145: 1
jedec_dimm1: unable to restore page for offset 0x0045: 1
jedec_dimm1: failed to read TSOD Manufacturer ID
device_attach: jedec_dimm1 attach returned 1
(interestingly, Thaiphoon Burner on Windows finds different SMBus addresses for
the SPD EEPROMs: 0x52 and 0x53)
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