Install Image aarch64 Kernel Memory Leak

[lethedata]

Describe the bug The current install images hosted on IoT Download Page include the 6.8.5-301.fc40.aarch64 kernel which has a known memory leak leading to high memory usage and system crashes.

• Bugzilla Bug Report: Bug 2275290 - memory leak in aarch64 beginning with kernel 6.8.4
• Forums Discussion: High memory usage in F40 on RPi 4, unable to find which process used them

To Reproduce

1. Install Fedora IoT release image on an aarch64 system
   • Note: Systems with low memory such as 1GB rpi3 have system crashes in a few hours
2. Do not update
3. Monitor for increasingly high memory usage

Expected behavior Normal non-leaking memory usage preventing system crashes.

Additional context Updating fixes the issue as the updates include an updated kernel. Currently 6.8.11-300.fc40.aarch64.

[nullr0ute]

2. Do not update

This is the key point, the bug has long been fixed by an update, as have numerous CVEs, so while it's a bug, it is fixed.

[miabbott]

@nullr0ute do we ever entertain rebuilding the install media after GA in the case of a known issue?

[nullr0ute]

@nullr0ute do we ever entertain rebuilding the install media after GA in the case of a known issue?

We rebuild them daily, we do on occasion, it use to be monthly but that's slipped of late, republish them but that requires a full QE because there's always known issues, some like this one are easily fixed with an upgrade.

[lethedata]

That makes sense to me.

The only argument I'd have for the need to republish now is that this known issue could be system crippling and prevent an upgrade. Tho the system I ran into this on was pretty constrained resource wise and was still able to update without issue so it 's probably fine to wait till the next publish.

[nullr0ute]

Even on a RPi3 the memory leak wasn't bad enough you couldn't upgrade before you ran out of memory.

But we do have a process to do updates of releases on the website, we were planning on doing one RSN.