Public bug reported:
[Impact]
To properly support instance types in AWS with > 255 cores we need to
make sure that commit c40aaaac1018ff1382f2d35df5129a6bcea3df6b
("iommu/vt-d: Gracefully handle DMAR units with no supported address
widths") is applied across all our linux-aws kernels.
[Test Case]
Tests performed by AWS.
[Fix]
Apply/backport commit c40aaaac1018ff1382f2d35df5129a6bcea3df6b.
[Regression potential]
The fix is affecting only intel IOMMU and it is an upstream fix, so the
regression potential is minimal.
** Affects: linux-aws (Ubuntu)
Importance: Undecided
Status: New
** Affects: linux-aws (Ubuntu Xenial)
Importance: Undecided
Status: New
** Affects: linux-aws (Ubuntu Bionic)
Importance: Undecided
Status: New
** Affects: linux-aws (Ubuntu Focal)
Importance: Undecided
Status: New
** Affects: linux-aws (Ubuntu Groovy)
Importance: Undecided
Status: New
** Affects: linux-aws (Ubuntu Hirsute)
Importance: Undecided
Status: New
** Also affects: linux-aws (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: linux-aws (Ubuntu Xenial)
Importance: Undecided
Status: New
** Also affects: linux-aws (Ubuntu Groovy)
Importance: Undecided
Status: New
** Also affects: linux-aws (Ubuntu Hirsute)
Importance: Undecided
Status: New
** Also affects: linux-aws (Ubuntu Bionic)
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-aws in Ubuntu.
https://bugs.launchpad.net/bugs/1913739
Title:
aws: properly support instance types with > 255 cpu cores
Status in linux-aws package in Ubuntu:
New
Status in linux-aws source package in Xenial:
New
Status in linux-aws source package in Bionic:
New
Status in linux-aws source package in Focal:
New
Status in linux-aws source package in Groovy:
New
Status in linux-aws source package in Hirsute:
New
Bug description:
[Impact]
To properly support instance types in AWS with > 255 cores we need to
make sure that commit c40aaaac1018ff1382f2d35df5129a6bcea3df6b
("iommu/vt-d: Gracefully handle DMAR units with no supported address
widths") is applied across all our linux-aws kernels.
[Test Case]
Tests performed by AWS.
[Fix]
Apply/backport commit c40aaaac1018ff1382f2d35df5129a6bcea3df6b.
[Regression potential]
The fix is affecting only intel IOMMU and it is an upstream fix, so
the regression potential is minimal.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-aws/+bug/1913739/+subscriptions
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