The Latest Kernel Release.

marav · 04-11-2021, 09:28 PM

zcat /proc/config.gz from my 5.11.13
make olddefconfig

On -current, everything builds & works well

Code:

root:~/ # uname -sr
Linux 5.12.0-rc7

cwizardone · 04-12-2021, 08:34 AM

FWIW, the second time around 5.12-rc7 built without errors.
The first attempt was at the prompt (out of X) while running the 5.11.12 kernel.
The second attempt was inside a terminal, while in X, and running 5.12-rc6.
Regardless, so far, everything I do with the computer works as it should with 5.12-rc7.

AlleyTrotter · 04-12-2021, 05:16 PM

From the Changelog

Code:

> k/kernel-source-5.10.29-noarch-1.txz:  Upgraded.
>   CC_VERSION_TEXT "gcc (GCC) 10.2.0" -> "gcc (GCC) 10.3.0"
>   GCC_VERSION 100200 -> 100300
>   INTEL_IDXD m -> n

I see PV has started to nix the INTEL_IDXD

marav · 04-13-2021, 06:35 AM

On slackware-current :
kernel 5.11.13 & 5.12-rc7 recompiled with gcc 10.3 without any issues

cwizardone · 04-13-2021, 09:33 AM

Year 2021, Round 26.

Another batch of updates has been scheduled for release on Wednesday, 14 April 2021, at approximately 08:00, GMT. If no problems are found while testing the release candidates, they might be available sometime on Tuesday (depending on your time zone).

The details:

5.11.14-rc1, with 210 patches, http://lkml.iu.edu/hypermail/linux/k...4.1/04873.html

5.10.30-rc1, with 188 patches, http://lkml.iu.edu/hypermail/linux/k...4.1/04691.html

5.4.112-rc1, with 111 patches, http://lkml.iu.edu/hypermail/linux/k...4.1/04563.html

4.19.187-rc1, with 66 patches, http://lkml.iu.edu/hypermail/linux/k...4.1/04511.html

nobodino · 04-13-2021, 11:18 AM

when will we have the capability of upgrading the kernel without rebooting?
With that "never ending" story every two or three days, the uptime isn't very high.

I'm serious when I say this.

LuckyCyborg · 04-13-2021, 11:32 AM

Quote:

Originally Posted by nobodino

when will we have the capability of upgrading the kernel without rebooting?
With that "never ending" story every two or three days, the uptime isn't very high.

I'm serious when I say this.

BUT, is not as simple as you think.

I seen (at a Linux conference) a presentation of methods of upgrading kernels on-fly, and it's basically about a kexec execution followed by a hot reboot, for taking over.

It minimize the down-time on a server, BUT it still counts as a reboot.

So, your uptime would not be saved, but reboot time would be considerable shorten.

ponce · 04-13-2021, 11:45 AM

Quote:

Originally Posted by nobodino

when will we have the capability of upgrading the kernel without rebooting?

that would make every hacker out there very happy!

nobodino · 04-13-2021, 11:45 AM

I didn't say it was easy, but it would be useful.

LuckyCyborg · 04-13-2021, 11:58 AM

Quote:

Originally Posted by nobodino

I didn't say it was easy, but it would be useful.

Did you are aware that what you describe is practically the Holly Grail of web hosting?

I bet that the one who will invent it would become richer than Bill Gates or Elon Musk in no more than one year...

Jan K. · 04-13-2021, 12:02 PM

Ksplice??

LuckyCyborg · 04-13-2021, 12:08 PM

Quote:

Originally Posted by Jan K.

Ksplice??

Ksplice and Kpatch of Linux kernels are about patching on-fly the things.

I do not known well about Ksplice thing, but the kernel patches are basically some kernel modules which are loaded, well... on-fly.

However, this is not an effective kernel upgrade, but more about fixing things on emergency, until a proper reboot is done and a superior version starts.

nobodino · 04-13-2021, 12:08 PM

-ksplice (Oracle)
-kpatch (RHEL)
-Kgraft (Suse SLS)
-livepatch (Canonical)

Any others?

Slackware has already some needs:
root@XXXXXX:~/scripts# zcat /proc/config.gz | grep LIVEPATCH
CONFIG_HAVE_LIVEPATCH=y
CONFIG_LIVEPATCH=y

root@XXXXXX:~/scripts#ls -ld /sys/kernel/livepatch
drwxr-xr-x 2 root root 0 avril 13 19:09 /sys/kernel/livepatch/

Jan K. · 04-13-2021, 01:42 PM

Only vaguely remembered once reading about ksplice and had the impression it could replace/update full kernel et all...

Anyway, always been a fan of shutting down once work is done. Gets rid of temp files, memory leaks and what-not floating around...

Back to topic!

enorbet · 04-13-2021, 02:01 PM

Quote:

Originally Posted by nobodino

when will we have the capability of upgrading the kernel without rebooting?
With that "never ending" story every two or three days, the uptime isn't very high.

I'm serious when I say this.

Unless you have unsupported hardware there is no requirement to regularly upgrade your kernel. You can blacklist it and commented out entries are already there I suppose because it is so common to blacklist kernel updates.

I simply build an even newer kernel and stick with it for a long time. This box running several instances of Current is using 5.11.11. One of the installs will probably try 5.12.1 when it is released.