Thilo Fromm

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Friendly ping - any chance of a review / feedback on the PR? Anything I can do to improve it?

Updated PR branch to latest master.

Closing this as we deployed a mitigation which appears to work. Thank you again for the report! Please re-open if the issue persists / comes back for you.

**Affected** * https://github.com/search?q=org%3Aflatcar-linux+github.com%2Fflatcar-linux&type=code or now https://github.com/search?q=org%3Aflatcar+github.com%2Fflatcar-linux&type=code * https://pkg.go.dev/search?limit=25&m=package&q=github.com%2Fflatcar-linux * https://pkg.go.dev/github.com/flatcar-linux/container-linux-config-transpiler/config?tab=importedby * https://cs.github.com/?scopeName=All+repos&scope=&q=github.com%2Fflatcar-linux+NOT+owner%3Aflatcar-linux+NOT+owner%3Ainvidian+ * https://archlinux.org/packages/community/x86_64/ct/ (maintainer contacted: https://github.com/flatcar/Flatcar/issues/540#issuecomment-1246506581) * https://github.com/kubernetes-sigs/cluster-api/search?l=Go&q=flatcar-linux **Related** * https://github.com/flatcar-linux/flatcar-website/pull/232 * https://github.com/flatcar-linux/scripts/pull/453 * https://github.com/flatcar-linux/coreos-overlay/pull/2132 * https://github.com/flatcar-linux/coreos-overlay/pull/2133 * ~https://github.com/flatcar-linux/ign-converter/pull/8~...

State of our research so far: - syzbot found a potential deadlock and a kernel dev noted there's a likeliness of this being a real issue: https://lore.kernel.org/lkml/20220824100652.227m7eq4zqq7luir@quack3/#t - the commit...

@Champ-Goblem Since we still have trouble reproducing this on our end, would it be possible for you to apply below patch to 5.15.63 (i.e. 3227.2.2) and check if you can...

Awesome, thank you very much for testing! We're discussing this issue with Jan Kara, an Ext4 maintainer, upstream. (https://www.spinics.net/lists/linux-ext4/msg85417.html ff., messages from today will become available in the archive tomorrow)....

@Champ-Goblem Thanks again for getting the list of tasks! This is helpful but we don't have a smoking gun yet. Upstream suspects that additional patches to 6.x mitigate the issue...

Azure marketplace offers `flatcar-container-linux-free` and `flatcar_pro` are published; `flatcar-container-linux` is still in Certification.

I don't think this is a good use case of `kexec` in general - regular production systems' state can become very complex (think driver states, DMA I/O queues, etc.). Merely...