Rob MacKinnon rmackinnon

Managing Linux AER Correctable Errors For Devices

Problem Space

Some devices are noisy AER correctable error devices. While notification is needed to diagnose potential future problems, warning/error fatigue is a legitimate concern, with a considerable issue of storage of repeated errors that are correctable (e.g. Replay Timer Timeout, Bad Data Link Layer Protocol, etc). You might have found Brainiarc7's gist regarding this topic. We'll dive a little deeper into the how and why here.

Here is a great example in the following kernel error message:

Creating a Fully Encrypted Filesystem

with GRUB, LUKS, and LVM under the Gentoo Linux Distribution

Intended Audience

This document is intended to help others achieve a fully encrypted platform, with lowered attack surface for at-rest data. The following text is designed and tailored for the Framework laptop, but should be applicable to most platforms. We will not be covering nested decryption nor the security implications of using TRIM/Discard, there are numerous documents that cover this thuroughly. You should be comfortable with filesystem and storage management.

Requirements

General understanding of the Linux commandline interface.
General understanding of LUKS and LVM partitioning.

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I hereby claim:

I am rmackinnon on github.
I am robmackinnon (https://keybase.io/robmackinnon) on keybase.
I have a public key whose fingerprint is A77C 9782 ECDF 2E43 6D24 82DB 6534 E1C3 5550 2A5E

To claim this, I am signing this object:

	* Rebuild all packages depending on `${target_atom}`
	Warning: Depending on the package being rebuilt...downloads and rebuild lists could
	be extraordinarily large. YMMV

	```emerge $(for pkg in `equery d =${target_atom} \| awk '{print $1}'`; do qlist -qIe ${pkg} 2> /dev/null; done )```

	- Description: This gets around some issues of packages being stuck with a version conflict, where a new version is pulled
	in to build/install with existing packages still requiring the old version. Replace '$target_atom' with the package that is stuck.

	- What's going on here/Why does this work? The sub-command runs a for loop where the input of the for loop pipes the output

	from memory_profiler import profile

	@profile(precision=4)
	def main():
	_v = "valuestring"
	_a = [_v] * 100000
	del _a

	main()

	from memory_profiler import profile

	@profile(precision=4)
	def main():
	_v = "valuestring"
	_a = [_v for _t in range(0,10000)]
	del _a

	main()

	rmackinnon@ginka ~/Develop/signal-desktop $ yarn test
	yarn run v1.9.4
	$ yarn test-node && yarn test-electron
	$ mocha --recursive test/app test/modules ts/test


	Attachments
	createWriterForNew
	✓ should write file to disk and return path
	createWriterForExisting

	#!/bin/bash

	# Reverse Find: Recurse upward from CWD to root and list any files matching.

	if [ $# -eq 0 ]; then
	echo "Usage: revfind [-d dir] <filename>"
	exit 1
	fi

	if [ $1 == '-d' ]; then

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