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Old 02-15-2019, 10:57 AM   #1186
bassmadrigal
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Quote:
Originally Posted by blancamolinos View Post
It seems clear that Slackware has a problem taking its kernels from the so-called LTS kernels that are generated by kernel.org.
You'll need to get more specific than vaguely mentioning security problems and graphics problems. Is this for 14.2 or -current?

14.2 has had 14 kernel updates since it was released (search the changelog for "linux-4.4" to help you find them). All of them were pulled from kernel.org and were LTS kernels. -current has had 126 updates to the kernel. Again, all of them were pulled from kernel.org and were LTS kernels.

Pat doesn't modify the kernels, so if anything is broken in them, it is either due to kernel developers or config options. Pat can't test every possible configuration and he's stated many times that he won't test 3rd-party proprietary graphic drivers with his kernels. If kernel developers do something to break support for those drivers, he won't take that into consideration if security updates are needed to be pushed. Pat relies on reports of issues that he doesn't have to determine if he needs to roll back or push on to another version.

This can be seen when they made the initial move to the 4.14 kernel in -current. Once 4.14 was released, Pat switched to it, but users found it was unstable, so he reverted back to the 4.9 series until kernel developers pushed a fix (he kept the 4.14 kernels in testing/ for those that wanted them).

This all comes down to Pat uses the kernels that kernel.org puts out. If they are putting out buggy kernels, your complaint lies with the kernel developers, not with Slackware or Pat. If your complaint is that your 3rd-party proprietary drivers no longer work with a kernel, then that complaint goes to the kernel developers for changing the API on an LTS kernel *AND* that proprietary driver developer for not keeping up with changes in the kernel.
 
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Old 02-15-2019, 11:07 AM   #1187
bassmadrigal
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Quote:
Originally Posted by blancamolinos View Post
This is the exception i remembered, from Slackware64 version 14.0 stable changelog:

+--------------------------+
Mon Jun 3 22:10:16 UTC 2013
patches/packages/linux-3.2.45/*: Rebuilt.
One more reverted commit. This one was leading to hangs on systems with
Intel graphics. The previous revert was also reverted in 3.2.46, but it
seems safer to just get this one manually than to take the newer kernel and
still have to do another patch to it anyway. Hopefully the third time is
the charm.
+--------------------------+
Wed May 22 14:11:13 UTC 2013
patches/packages/linux-3.2.45/*: Rebuilt.
It appears a bad commit slipped into 3.2.45 and it's causing problems on
systems that use Intel graphics. The commit has been reverted in the kernel
source packages and the kernels and modules have been rebuilt. If you ran
into the black screen problem before, this should fix it up.
+--------------------------+
Mon May 20 21:01:33 UTC 2013
patches/packages/linux-3.2.45/*: Upgraded.
Upgraded to new kernels that fix CVE-2013-2094, a bug that can allow local
users to gain a root shell. Be sure to upgrade your initrd and reinstall
LILO after upgrading the kernel packages.
For more information, see:
http://cve.mitre.org/cgi-bin/cvename...=CVE-2013-2094
(* Security fix *)
+--------------------------+
So, you're complaining that Pat isn't doing Slackware justice because of an issue that happened 6 years ago? It is obvious from those changes that those updates couldn't be fully trusted, so Pat decided to just revert the specific problematic commits rather than upgrade and possibly introduce more issues. Have you seen any of these types of issues in 14.2 or -current? I think kernel.org became more stringent in what will be pushed to LTS kernels making issues like this less likely, allowing Pat to be more trusting of updates (although, he still only updates kernels in stable releases when he feels the security issues warrant the possible instability introduced by upgrading to a newer kernel).
 
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Old 02-15-2019, 11:42 AM   #1188
blancamolinos
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I do not have any problem with Slackware. I'm just saying that Patrick trusts the good work of kernel.org but, currently, this work of kernel.org with the LTS kernels does not seem to be taken very seriously. If this kernel.org situation improves it will be good for Slackware.
 
Old 02-15-2019, 12:31 PM   #1189
bassmadrigal
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Quote:
Originally Posted by blancamolinos View Post
I do not have any problem with Slackware. I'm just saying that Patrick trusts the good work of kernel.org but, currently, this work of kernel.org with the LTS kernels does not seem to be taken very seriously. If this kernel.org situation improves it will be good for Slackware.
Slackware is at the mercy of upstream. That's one of the results when you try to provide vanilla packages. On stable releases, Pat, as always, weighs the possible benefits with the possible downsides. This is why we don't see every 4.4 release in 14.2... he only waits until there's enough of a security reason to upgrade, hoping instabilities will be at a minimum. The latest kernel update 14.2 got covered 31 CVEs. I do feel it wasn't the best idea to change the API of an LTS kernel release, but there was probably a good reason behind it. I certainly am no kernel developer, so I have no knowledge of the inner workings of the kernel.
 
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Old 02-15-2019, 01:29 PM   #1190
Petri Kaukasoina
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It was a CVE-2018-1120 fix.

Last edited by Petri Kaukasoina; 02-15-2019 at 01:48 PM.
 
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Old 02-15-2019, 05:24 PM   #1191
cwizardone
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Quote:
Originally Posted by cwizardone View Post
Since installing the 4.19.21 kernel I've been experiencing random complete freezes of the system and have reverted to the 4.19.20 kernel......
On a hunch, late yesterday the 4.19.21 kernel was reinstalled and instead of the Nvidia-418.30-beta driver, the 410.93 "Long Lived Branch driver" was used. There hasn't been a freeze or hiccup since.
Now to try the new 4.19.23 kernel.
 
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Old 02-16-2019, 10:42 AM   #1192
GazL
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HEADS UP! Regressions! Make sure you get the latest if you're building a new kernel.

https://lwn.net/Articles/779934/
 
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Old 02-17-2019, 05:18 AM   #1193
jheengut
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powertop Segmentation fault

hi,

I upgraded to latest Slackware -current and it "`seems`" the kernel has an issue with powertop.

Code:
powertop --html=~/powerreport.html            
modprobe cpufreq_stats failedLoaded 750 prior measurements
RAPL device for cpu 0
RAPL Using PowerCap Sysfs : Domain Mask f
RAPL device for cpu 0
RAPL Using PowerCap Sysfs : Domain Mask f
Devfreq not enabled
glob returned GLOB_ABORTED
Preparing to take measurements
failed to mmap with 12 (Cannot allocate memory)
failed to mmap with 12 (Cannot allocate memory)

failed to mmap with 12 (Cannot allocate memory)
failed to mmap with 12 (Cannot allocate memory)
Segmentation fault
same issue reported here https://bugs.archlinux.org/task/61766

Are you able to reproduce this error ?

Code:
 powertop --debug
modprobe cpufreq_stats failedLoaded 750 prior measurements
RAPL device for cpu 0
RAPL Using PowerCap Sysfs : Domain Mask f
RAPL device for cpu 0
RAPL Using PowerCap Sysfs : Domain Mask f
Devfreq not enabled
glob returned GLOB_ABORTED
Learning debugging enabled
Delta starts at 0.200

Score:    3.0  (44816.1)
Guess:    1.6
Actual:   1.9
----------------------------------
I tried a strace and gdb but could not find the issue.

Any help is greatly welcomed



Cheers

Pritvi
 
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Old 02-17-2019, 09:14 PM   #1194
cwizardone
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5.0-rc7

The newest "mainline" kernel, version 5.0-rc7, has been been made available for testing.

The tarball, https://git.kernel.org/torvalds/t/linux-5.0-rc7.tar.gz

Mr. Torvalds' announcement, http://lkml.iu.edu/hypermail/linux/k...2.2/00519.html
Quote:
Linux 5.0-rc7
From: Linus Torvalds
Date: Sun Feb 17 2019 - 21:57:27 EST

A nice and calm week, with statistics looking normal. Just under half
drivers (gpu, networking, input, md, block, sound, ...), with the rest
being architecture fixes (arm64, arm, x86, kvm), networking and misc
(filesystem etc).

Nothing particularly odd stands out, and everything is pretty small.
Just the way I like it. Shortlog appended,

Linus

---

Last edited by cwizardone; 02-17-2019 at 09:17 PM.
 
Old 02-17-2019, 09:39 PM   #1195
allend
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Quote:
I upgraded to latest Slackware -current and it "`seems`" the kernel has an issue with powertop.
According to the link posted by loqs in the Arch bug, it is a kernel bug.
 
Old 02-18-2019, 06:15 AM   #1196
Petri Kaukasoina
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Quote:
Originally Posted by allend View Post
According to the link posted by loqs in the Arch bug, it is a kernel bug.
The fix is now in the stable queue to be included in the next stable and longterm kernels.
 
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Old 02-18-2019, 10:29 AM   #1197
cwizardone
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Thanks for the information.
There is another round of updates of all the stable and LTS kernels scheduled for early Wednesday afternoon, GMT/UTC.
 
Old 02-18-2019, 09:29 PM   #1198
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Quote:
Originally Posted by Petri Kaukasoina View Post
The fix is now in the stable queue to be included in the next stable and longterm kernels.

thanks
 
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Old 02-20-2019, 07:29 AM   #1199
cwizardone
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Kernel updates 4.20.11, 4.19.24, 4.14.102, 4.9.159, 4.4.175 and 3.18.135 are now available at

https://www.kernel.org/

The change logs,

https://cdn.kernel.org/pub/linux/ker...ngeLog-4.20.11

https://cdn.kernel.org/pub/linux/ker...ngeLog-4.19.24

https://cdn.kernel.org/pub/linux/ker...geLog-4.14.102

https://cdn.kernel.org/pub/linux/ker...ngeLog-4.9.159

https://cdn.kernel.org/pub/linux/ker...ngeLog-4.4.175

https://cdn.kernel.org/pub/linux/ker...geLog-3.18.135


The 4.19.24, 4.14.102 and 4.9.159 change logs show several ARM:Spectre patches.

Both the 4.4.175 and 3.18.135 change logs reference CVE-2019-3819, CVE-2019-7221 and CVE-2019-7222.

Dave's Unofficial Slackbuilt Kernel update for the 4.4.x series can be found at, https://dusk.idlemoor.tk

Last edited by cwizardone; 02-20-2019 at 09:07 AM.
 
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Old 02-21-2019, 09:33 AM   #1200
cwizardone
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While yesterday's updates may still be warm, so to speak , another round of kernel updates has been scheduled for early Saturday afternoon, GMT/UTC.

Last edited by cwizardone; 02-25-2019 at 04:05 PM. Reason: Typo.
 
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