This bug was fixed in the package linux-aws - 6.8.0-1018.20
---------------
linux-aws (6.8.0-1018.20) noble; urgency=medium
* perf build disables tracepoint support (LP: #2076190)
- [Packaging] update dependencies to add libtraceevent
-- Philip Cox <[email protected]> Thu, 10 Oct 2024 12:14:33
-0400
** Changed in: linux-aws (Ubuntu Noble)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/2080414
Title:
[N][AWS]Backport x86/kaslr fix impacting ML/HPC workloads
Status in linux-aws package in Ubuntu:
Fix Released
Status in linux-aws source package in Noble:
Fix Released
Bug description:
SRU Justification:
[Impact]
EC2 team discovered a Linux bug during ML/HPC workload testing on P5
instances. The issue is described at
https://lore.kernel.org/all/87ed6soy3z.ffs@tglx/ ("iounmap() on x86
occasionally fails to unmap because the provided valid ioremap address
is not below high_memory.").
[Fix]
This is fixed by upstream commit
ea72ce5da22806d5713f3ffb39a6d5ae73841f93:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ea72ce5da22806d5713f3ffb39a6d5ae73841f93
[Test Plan]
AWS tested
[Where problems could occur]
If there was code that made incorrect assumptions on how memory was
laid out and used, it might break the functionality, but seeing as
this is fixing an error, the chances of that should be fairly low.
[Other Info]
SF #00392654
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