Kernel
59
MENTIONS
11
EPISODES
7
PODCASTS
Search complete. 59 mentions across 11 episodes found for "Kernel".
Oct 16, 2026
speaker_0HOST
Operating system, Betriebssystem.
speaker_0HOST
Kernel is the central part of an OS that controls resources and processes.
speaker_0HOST
It's what runs beneath user programs.
speaker_0HOST
Kernel, Kernel.
speaker_0HOST
Shell is a command line interface used to interact directly with the OS.
speaker_0HOST
Use it for scripting or advanced tasks.
Herman PoppleberryHOST
The temptation is always the same.
Herman PoppleberryHOST
You're on a stable release, everything works, and then you read about a newer kernel, a newer driver, a newer version of something you use every day, and you start thinking about how much better your life would be if you just upgraded.
CornHOST
Right? And then you do it, and you spend the weekend fixing things that weren't broken.
Herman PoppleberryHOST
Daniel's been running Linux desktops for almost 20 years, mostly Ubuntu, and he just moved to 26.04 LTS.
CornHOST
So the picture is complete now.
CornHOST
The launch stack is settled.
CornHOST
The hardware enablement kernel is available, and we can actually see what Canonical is doing with the maintenance model.
Herman PoppleberryHOST
So the question splits into four.
Herman PoppleberryHOST
20 years of desktop Linux, and there's still one part of the stack that nobody ever sat me down and explained properly.
Herman PoppleberryHOST
People will explain the kernel to you for six hours.
Herman PoppleberryHOST
Nobody explains the firmware.
CornHOST
It's the part you only meet when something has already gone wrong.
8 MINS LATER
CornHOST
Firmware validates the Microsoft signed shim.
CornHOST
Shim validates a canonical signed grub or mock manager.
CornHOST
Grub loads and validates the canonical signed kernel.
CornHOST
Ubuntu has supported this since 12.04 LTS, and since 18.04 it verifies the bootloader, the kernel, and the kernel modules.
Herman PoppleberryHOST
And the governor question is a good place to start because there's a clean sweep that settles a lot of arguments.
Herman PoppleberryHOST
A Framework 13, Ryzen 7 7840U, Arch, kernel 6.75, tested across every combination of AMD deep state mode, frequency governor, and ACPI platform profile.
Herman PoppleberryHOST
Four scenarios, every permutation.
CornHOST
And the results surprise people.
Herman PoppleberryHOST
Nothing in the reclaim path compares swappiness against a quantity of memory, a fraction of memory, or a percentage of anything.
CornHOST
So everyone who's been setting it to 10 for 15 years had the wrong reason.
Herman PoppleberryHOST
Right reason, wrong mechanism, and the kernel documentation carried wording that suggested otherwise for over a decade before it was corrected in Linux 5.28 in June 2020.
Herman PoppleberryHOST
That's how these things survive.
Casey MuratoriGUEST
Is this part of
ThePrimeagenHOST
the problem why Linux doesn't have an anti-cheat is that you can just modify the kernel so theoretically someone could just be like, oh yeah, totally at a kernel level anti-cheat.
ThePrimeagenHOST
Kernel now responds always the right way to you.
ThePrimeagenHOST
They could just cheat around.
ThePrimeagenHOST
I don't know how they work.
Steve GibsonHOST
Every action or piece of data that goes out to the network has to be approved by the sentinel.
Steve GibsonHOST
The kernel enforces that, and it knows..." It's too bad it's spelled K-E-R-N-E-L, 'cause, you know, if it was K-O-L, uh, uh-
Leo LaporteHOST
[laughs]
Steve GibsonHOST
... that'd be kind of fun.
Steve GibsonHOST
Every action or piece of data that goes out to the network has to be approved by the sentinel.
Steve GibsonHOST
The kernel enforces that, and it knows..." It's too bad it's spelled K-E-R-N-E-L, 'cause, you know, if it was K-O-L, that would, uh-
Leo LaporteHOST
[laughs]
Steve GibsonHOST
... be kind of fun.
Steve GibsonHOST
Every action or piece of data that goes out to the network has to be approved by the Sentinel.
Steve GibsonHOST
The kernel enforces that, and it knows – it's too bad it's spelled K-E-R-N-E-L because, you know, if it was K-O-L, that would be kind of fun.
Steve GibsonHOST
Anyway, the kernel – The kernel enforces that, and it knows when it needs to get your permission to proceed, except apparently not in that case of the thing that did all that without the user's permission.
Steve GibsonHOST
The model, the MuseHarness deterministic code, and an ensemble of classifiers all work together to detect threats like prompt injections.
Steve GibsonHOST
Every action or piece of data that goes out to the network has to be approved by the Sentinel.
Steve GibsonHOST
The kernel enforces that, and it knows – it's too bad it's spelled K-E-R-N-E-L because, you know, if it was K-O-L, that would be kind of fun.
Steve GibsonHOST
Anyway, the kernel – The kernel enforces that, and it knows when it needs to get your permission to proceed, except apparently not in that case of the thing that did all that without the user's permission.
Steve GibsonHOST
The model, the MuseHarness deterministic code, and an ensemble of classifiers all work together to detect threats like prompt injections.
SheckyGUEST
Then you run into problem number two is to try and mitigate something around that.
SheckyGUEST
For instance, with Linux, you use something like kernel care.
SheckyGUEST
Yeah, yeah.
SheckyGUEST
Kernel care, depending upon what you're using for your volume management, the volume management software won't see that you've patched it because it's running off of which KernelCare doesn't update the Kernel version on it.
SheckyGUEST
It just patches and it just puts the patch in place.
Jake WilliamsHOST
Yeah.
Jake WilliamsHOST
So real quick, for those that don't know or aren't familiar with this technology, KernelCare is one of the many competitors, or I wouldn't say many competitors, one of the many vendors in the space that's doing live hot patching.
Jake WilliamsHOST
of Linux systems, right? And of course, there are folks, does kernel care do anything with Windows? I don't think they do.
1 more episode mentions Kernel.
Create an account to see the whole feed, search across every transcript, and follow the entities you care about.