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Meekrotoday at 1:28 AM4 repliesview on HN

> Nobody sensible runs the latest kernel

From the article: "Linux 7.0 stable is due out in about two weeks. This is also the kernel version powering Ubuntu 26.04 LTS to be released later in April."

Unfortunately, lots of people will be running it in less than a month. At the moment, it'll take a kernel patch (not a sysctl) to undo this-- hopefully something changes.


Replies

Neywinytoday at 1:44 AM

Not nobody but not everybody upgrades to the newest distros immediately. That's the advantage of LTS. I've even found that a lot of programs have poorer support on 24.04 than 22.04 due to security changes, so I'm fine sticking with 22.04 as my main dev system.

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teekerttoday at 8:46 AM

I think most people on enterprise-y systems wait for (at least) 26.04.1, the window is 3 years (when on 24.04, which is supported until ~2029-04-30, it's 1 year when on 22.04) starting now, hardly anyone switches immediately.

tankenmatetoday at 10:31 AM

Not necessarily;

``` $ grep PREEMPT_DYNAMIC /boot/config-$(uname -r) CONFIG_PREEMPT_DYNAMIC=y CONFIG_HAVE_PREEMPT_DYNAMIC=y CONFIG_HAVE_PREEMPT_DYNAMIC_CALL=y ```

if your kernel has CONFIG_PREEMPT_DYNAMIC then you can go back to the pre 7.0 default by adding preempt=none to your grub config. I haven't seen any plans by Ubuntu to drop CONFIG_PREEMPT_DYNAMIC from the default kernel config.

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999900000999today at 3:40 AM

Depends on your shop.

As someone with a heavy QA/Dev Opps background I don't think we have enough details.

Is it only ARM64 ? How many ARM64 PG DBs are running 96 cores?

However...

This is the most popular database in the world. Odds are this will effect a bunch of other lesser known applications.

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