Linux 7.2 has landed, dragging x86 timing clean out of the nineties by making the Time Stamp Counter mandatory.
I wrote up a quick article on why ditching those ancient legacy fallbacks is good housekeeping, plus a few other bits like cache-aware scheduling and memory tweaks worth noting.
Is anyone still using legacy hardware? If so, what do you use it for?
I kinda miss the idea that the kernel would run on literally any hardware it ever did support, but I totally get it, especially now that there’s an emphasis on reducing attack surfaces.
Someone will keep up support and you’re always welcome to merge it and compile your kernel.
I have some xeons in an old server running that I can’t update to the next version of Rocky because the kernel won’t support them :(
Isn’t that just Rocky configuring the kernel that way? You’re free to compile your own kernel and it’ll still support even old pentiums, just not i486 in new versions
Lots of retro enthusiasts still use legacy hardware for all sorts of reasons… I fear that a fork of the kernel will be necessary in the near future to keep these machines running.
The notion of using Linux to revive old hardware and keep it out of the landfill may not last forever…
There are ultra long term support Linux kernels though.
Linux 6.12 will be supported until at least 2036 for instance.
Or just don’t connect to the public internet and continue using a kernel that works? Even with internet, the attack vectors for such a machine are nearly non existent.
And why do they need to use the latest Linux kernel for that hardware, again?
Security updates if you use it online or copy new binaries to run on it. Even if you’re not worried about hackers, there can still be viruses and malware that destroy your data.
There are LTS versions outside of current.
But more importantly, who runs anything remotely critical on a 486 these days? These machines choke to death on TLS handshakes.
Who said anything about critical?
I just don’t want my hard disk wiped when I decide to try a piece of software.
I just don’t want my hard disk wiped when I decide to try a piece of software.
You aren’t running any relatively recent software on a 486, period. Even if you did and it turned out to be a virus, the chances of it hitting a bug in the kernel are extremely low.
This is just grasping at straws.
Industrial machine controllers frequently run on ancient hardware
And they are very notoriously outdated in terms of software.
Do they run the latest Linux kernel?
I do agree. Maybe I’m little paranoid, but I feel like in some years, recycle old chips will be the only IT available
I use a Compaq CQ510-SD for writing. Lovely small keyboard, only has a resolution of 1024x600, but with some zoom configured in autostart that increases to twice that. It works as little more than a glorified text processor, but it suits my needs just fine while I can’t find its equal in the x64 or ARM market.
Use an ultra long support kernel like 6.12
The keyboard does look lovely. Maybe a Chromebook with Linux? I don’t know what the Linux world is like for those. I’m sure you’ve looked at them before.
I did, yes. Finding a 12" or 13" mini-laptop is just tricky. Might need to build one of those custom clamshells.
But why does it need updates if it works? Just don’t connect it to the Internet and you can run it until either it dies or you die.
I tend to write on it on the couch or at the library or wherever, and then use syncthing to sync with my desktop. This does require keeping syncthing updated.
I would recommend looking into the BSD’s, they have stronger support for older and unusual architectures. Something like nomadBSD, uses xfce on freeBSD
The problem is not software but hardware. The Compaq CQ510-SD is a nice compact design with round edges and small enough to fit in most any bag. Finding the same in a x64 system seems impossible. Hard edges, larger screens, flimsy chassis, or unuseable keyboards.
Well if you still like your hardware, and want continued, updated, software support, one of the BSD’s still likely to get you there for a bit longer. NetBSD likely being the one that drops it last.
But at some point, as long as you able to do your work and copy data back and forth, does it matter. Even just running winXP or 7 will get you along for sometime.
FreeDOS will always support x86, lol.
At least you not running something with an old big edian PowerPC machine. Support for those suck!
Does the machine a a socketed CPU, it appeared it runs the Core2 CPUs, if you get a core2duo, those support 64bit. I have a ThinkPad x60 with a 32bit Core2 CPU. It’s odd that there was 32bit only version of that class of CPU. I haven’t bothered to try upgrade it though.
To my knowledge the CPU is soldered to the mainboard, but I haven’t looked inside it for a while now. Mine is running an Intel Atom N455; single core, two threads.
I’ll probably swap to a BSD for it when support ends.
Old news, this was clear in June: https://www.phoronix.com/news/Linux-Kernel-TSC-Unconditional