Public bug reported:
[Impact]
KIOXIA NVMe has a 10% chance to stop working after S3.
[Fix]
Enable ACS quirk on Intel CML root port.
[Test]
With the patch applied, KIOXIA NVMe always works after S3.
[Regression Potential]
ACS works at hardware level, so I can't really assess the risk of
regression. Since Intel confirmed CML also needs ACS quirk, we can only
trust them.
** Affects: hwe-next
Importance: Undecided
Status: New
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Affects: linux-oem-5.6 (Ubuntu)
Importance: Undecided
Status: Invalid
** Affects: linux (Ubuntu Focal)
Importance: Undecided
Status: Confirmed
** Affects: linux-oem-5.6 (Ubuntu Focal)
Importance: Undecided
Status: Confirmed
** Affects: linux (Ubuntu Groovy)
Importance: Undecided
Status: Confirmed
** Affects: linux-oem-5.6 (Ubuntu Groovy)
Importance: Undecided
Status: Won't Fix
** Tags: oem-priority originate-from-1893902 stella
** Also affects: linux (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Groovy)
Importance: Undecided
Status: New
** Also affects: linux-oem-5.6 (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux-oem-5.6 (Ubuntu Groovy)
Status: New => Won't Fix
** Changed in: linux (Ubuntu Focal)
Status: New => Confirmed
** Changed in: linux (Ubuntu Groovy)
Status: New => Confirmed
** Changed in: linux-oem-5.6 (Ubuntu Focal)
Status: New => Confirmed
** Changed in: linux-oem-5.6 (Ubuntu)
Status: New => Invalid
** Tags added: oem-priority originate-from-1893902 stella
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https://bugs.launchpad.net/bugs/1895718
Title:
Fix non-working NVMe after S3
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