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Date:      Fri, 22 Feb 2019 20:55:21 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 235944] jedec_dimm(4) does not attach to KFA2 (aka Galax) Hall of Fame DDR4 sticks
Message-ID:  <bug-235944-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D235944

            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: bugs@FreeBSD.org
          Reporter: greg@unrelenting.technology

Created attachment 202271
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D202271&action=
=3Dedit
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)

--=20
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