[SOLVED] strange behavior with kernel-4.14.x

Darth Vader · 12-17-2017, 01:38 PM

Quote:

Originally Posted by dracolich

Dang, that sounds discouraging about .7. I might just go back to .5 and wait a while

Do not be too disappointed, it could work much better in your system than in my system.

That's the magic of 4.14.x series...

In fact I have other three systems where it works like a charm, under x86_64. OK, I do not forced my luck trying the Patrick's loop.

dracolich · 12-17-2017, 01:56 PM

Just installed .7 and booted twice. Ok so far ...

@Drakeo
Forgot to add earlier, my only custom udev rules are creating symlinks for some removable drives and a multi-card reader.

aaazen · 12-20-2017, 03:21 PM

Patrick recently built new patched 4.14.7 kernels in the current testing/ directories.

Code:

Wed Dec 20 03:05:58 UTC 2017
...
testing/packages/linux-4.14.7/kernel-generic-4.14.7-x86_64-1.txz: Upgraded.
testing/packages/linux-4.14.7/kernel-headers-4.14.7-x86-1.txz: Upgraded.
testing/packages/linux-4.14.7/kernel-huge-4.14.7-x86_64-1.txz: Upgraded.
testing/packages/linux-4.14.7/kernel-modules-4.14.7-x86_64-1.txz: Upgraded.
testing/packages/linux-4.14.7/kernel-source-4.14.7-noarch-1.txz: Upgraded.
       These sources have been patched with two patches that have been submitted
       upstream but have yet to appear in the mainline or stable kernels. With the
       patches applied this kernel seems stable now on both 32 and 64-bit x86.
       Thanks to Michele Ballabio for reporting the issue to the upstream kernel
       developers, and to Ming Lei for the fix. Once these patches appear in the
       4.14.x kernel series (and barring any other major regressions), we'll be
       moving these kernels back into the main tree.

My 32-bit current system running 4.14.7-smp now passes "Patrick's Test"

Code:

while true
do
        /sbin/udevadm trigger --type=subsystems --action=change
        /sbin/udevadm trigger --type=devices --action=change
        /sbin/udevadm settle --timeout=120
done

It ran for over 10 minutes without crashing.

I was curious if the two patches would fix the mainline Linux too, 4.15-rc4.

They did! My 32-bit Linux 4.15-rc4-smp now runs Patrick's Test for over 10 minutes.

Here are the two patches:

https://marc.info/?l=linux-block&m=151358286916766&w=2

https://marc.info/?l=linux-block&m=151358288016771&w=2

Now we have to wait until the kernel developers add it the mainline (4.15) and then patch 4.14...

USUARIONUEVO · 12-20-2017, 05:52 PM

4.14.8 is available for test
https://www.kernel.org/

Darth Vader · 12-21-2017, 01:14 AM

The patched 4.14.7 works like a charm in my mini-PC too, at least until now. Congratulations, Patrick!

So far, so good.

Drakeo · 12-21-2017, 02:01 AM

Quote:

Originally Posted by dracolich

Just installed .7 and booted twice. Ok so far ...

@Drakeo
Forgot to add earlier, my only custom udev rules are creating symlinks for some removable drives and a multi-card reader.

Well you got it sorted out, I use real time for media and usb for programs to hardware thats why I brought that up .

nobodino · 12-23-2017, 02:09 AM

Linus Torvald kernel git tree has been updated with the modifications included in the Slackware kernel-4.14.7 patches, so it's just a matter of patience to see them in next stable kernel.
Not yet in the linux-stable tree so far.
Once done we'll close that thread!

GazL · 12-23-2017, 07:57 AM

I didn't see any mention of them in greg's 4.14.9-stable review post, so I suspect we'll be waiting for at least 4.14.10.

Nille_kungen · 12-23-2017, 10:56 AM

I want to add this to this thread.
https://www.linuxquestions.org/quest...nt-4175618627/

Darth Vader · 12-23-2017, 11:11 AM

Yep, looks like you raised a legit "strange behavior" even it does not end in a glorious crash.

willysr · 12-23-2017, 02:29 PM

The patches in stable MUST have been included in the Linus' main tree first, so it's common thing for all patch goes through Linus tree and then backported back to stable or older kernel releases

aaazen · 12-24-2017, 08:58 AM

Quote:

Originally Posted by aaazen

...
I was curious if the two patches would fix the mainline Linux too, 4.15-rc4.

They did! My 32-bit Linux 4.15-rc4-smp now runs Patrick's Test for over 10 minutes.

Here are the two patches:

https://marc.info/?l=linux-block&m=151358286916766&w=2

https://marc.info/?l=linux-block&m=151358288016771&w=2

Now we have to wait until the kernel developers add it the mainline (4.15) and then patch 4.14...

The new 4.15-rc5 kernel contains the 2 patches and now passes "Patrick's Test" on my 32-bit smp machine.

https://www.kernel.org/

So the next step will be for the developers to copy the patches to 4.14...

nobodino · 12-25-2017, 10:28 AM

As for now, linux-stable has been updated as linux-4.15-rc5.
It can't be too long before we can close that thread.
Maybe the next kernel-4.14.x release?

cwizardone · 12-25-2017, 11:31 AM

Quote:

Originally Posted by nobodino

As for now, linux-stable has been updated as linux-4.15-rc5.
It can't be too long before we can close that thread.
Maybe the next kernel-4.14.x release?

Well... I understand what you are sayinng and I don't mean to nitpick, but the latest "stable" kernel, as of 24 Dec. 2017, is 4.14.9.
https://www.kernel.org/

The 4.15-rcx kernel is the current development kernel and called the "mainline" kernel.
Again, see the link above.

nobodino · 12-25-2017, 11:45 AM

"git clone linux-stable" : is up to date (today) with the patches included, is just what I meant, nothing else.
I'm not referring to kernel.org for which I read the kernel-4.14.9 changelog.