** Also affects: linux-bluefield (Ubuntu Jammy)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2085561
Title:
bluefield_edac: replace SAUCE patches with upstream content
Status in linux-bluefield package in Ubuntu:
New
Status in linux-bluefield source package in Jammy:
New
Bug description:
SRU Justification:
[Impact]
The BlueField-1/BlueField-2 EDAC driver in Jammy repo consists of several
SAUCE patches.
There are now equivalent upstream patches that should be used instead.
[Fix]
1) Revert the three SAUCE patches for bluefield_edac driver
2) Cherry pick four upstream patches for bluefield_edac driver
[Test Case]
1) Boot BlueField-2 with relevant software
2) Check initial state of correctable error count, should be 0
$ cat /sys/devices/system/edac/mc/mc0/ce_count
3) Find sysfs entry for DRAM ECC injection
$ find / -name 'DRAM_ECC_INJECT'
4) Inject ECC error
$ echo 1 > OUTPUT-FROM-STEP3-ABOVE
5) Repeat step 4 until this error message appears on console
"ERROR: BL31: MSS0 EMEM MI Single bit ECC detected"
6) Check new state of correctable error count, should be non-zero
$ cat /sys/devices/system/edac/mc/mc0/ce_count
[Regression Potential]
Low potential, as upstream commits have been tested and vetted by
upstream maintainers.
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