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Beiträge die mit kernel getaggt sind


 
Hey followers, do you know an easy & universal way how inexperienced users can decode why their #linux #kernel got tainted? Dmesg might not have all the reasons anymore, journalctl might not be in use, and /proc/sys/kernel/tainted is hard to decode if tainted for multiple reasons .

Asking for a friend stupid enough to do regression tracking for the #Linux #kernel now and then in his rare spare time. That's why he is writing a major update for https://www.kernel.org/doc/html/latest/admin-guide/reporting-bugs.html currently. Screenshot from https://www.kernel.org/doc/html/latest/admin-guide/tainted-kernels.html


 
"[…] We are trialing out a new feature that can send you a notification when the patches you send to the #LKML are applied to linux-next or to the mainline git trees. If you are interested in trying it out, here are the details: […]" #linux #kernel kernel.org/get-notificati…


 

 
#Linux #Kernel 4.19.9, 4.14.88, 4.9.145, 4.4.167, 3.18.129 are out, bringing the usual pile of fixes and small improvements along with the "you just update" advice. Among the changes in 4.19.9 are a few #Amdgpu patches that improve support for the #Radeon RX 590.


 
Bild/FotoThorsten 'the Linux kernel logger' Leemhuis(6/6) wrote the following post Sat, 08 Dec 2018 13:31:34 +0100

#Linux #kernel 4.19.8 is out. It fixes the data corruption issue in blk-mq that made the news recently and was alleged to ext4 in the beginning.

Note: The fix applied on Wednesday was basically reverted today and replaced by a better one. For details see git.kernel.org/pub/scm/linux/…



kernel/git/stable/linux.git - Linux kernel stable tree #Linux

 
#Linux 4.19.8 with the new fix for the data corruption issue in blk-mq is now available in my #Kernel vanilla repositories for #Fedora 28 and 29: fedoraproject.org/wiki/Kernel_Va…
Side note TWIMC: The current kernel from updates-testing contains a fix, too, but it's the older one.

 
BTW, #Linux 4.14.87 and 4.9.144 are out, too. All those new #Longterm #kernel bring the usual pile of fixes and small improvements, so you must update.

Site node: If you do not know which kernel version line is the best for your machines go and read kroah.com/log/blog/2018/…

 
#Linux #kernel 4.19.8 is out. It fixes the data corruption issue in blk-mq that made the news recently and was alleged to ext4 in the beginning.

Note: The fix applied on Wednesday was basically reverted today and replaced by a better one. For details see git.kernel.org/pub/scm/linux/…


 
Bringing the Android kernel back to the mainline

https://lwn.net/SubscriberLink/771974/ade4e5fb18058302
The dream of running mainline kernels on #Android devices has not yet been achieved, but it may be closer than many people think.
#kernel #linux

 
Bringing the Android kernel back to the mainline

https://lwn.net/SubscriberLink/771974/ade4e5fb18058302
The dream of running mainline kernels on #Android devices has not yet been achieved, but it may be closer than many people think.
#kernel #linux

 
The fix for the data corruption in blk-mq (alleged to #ext4 earlier) was "basically reverted" by a newer fix in #linux mainline; it takes a different angle and fixes a livelock the earlier patch created: "blk-mq: punt failed direct issue to dispatch list" git.kernel.org/torvalds/c/c61…

 
The latest DRM merge in #Linux #kernel mainline (and thus for 4.20) contains a few patches that are supposed to make Radeon RX 590 cards work better. There are also some fixes for Vega20. git.kernel.org/torvalds/c/d38…

 
#Linux 4.19.7 since earlier today is available in my #Kernel #Vanilla repositories for #Fedora: fedoraproject.org/wiki/Kernel_Va…

One of the changes fixes a PCIe problem that can hit #Amdgpu: twitter.com/kernellogger/s…

Looks like the fix for the data corruption problems will be in 4.19.8.

 
The fix for the block issue that among others resulted in #ext4 filesystems errors is now in the #Linux mainline #kernel; it's tagged stable and thus should soon get merged to 4.19.x:
git.kernel.org/torvalds/c/4ea…
git.kernel.org/torvalds/c/ffe…

 
IWD (iNet wireless daemon)

"iNet Wireless Daemon (iwd) project aims to provide a comprehensive Wi-Fi connectivity solution for Linux based devices. The core goal of the project is to optimize resource utilization: storage, runtime memory and link-time costs. This is accomplished by not depending on any external libraries and utilizes features provided by the Linux Kernel to the maximum extent possible. The result is a self-contained environment that only depends on the Linux Kernel and the runtime C library."

https://iwd.wiki.kernel.org
https://wiki.debian.org/NetworkManager/iwd
https://wiki.archlinux.org/index.php/Iwd
http://www.linux-community.de/ausgaben/linuxuser/2018/11/fiat-wi-fi

#Linux #IWD #kernel #WLan

 
#Linux #Kernel 4.19.7 and 4.14.86 are out. They contain the improved #spectre v2 mitigation that has no big negative performance impact unless you activate the best protection. For details about these changes including new and improved kernel boot parameters see below thread.

 

Using Zig to Provide Stack Traces on Kernel Panic for a Bare Bones OS


Last week, I reached an exciting milestone in my career as a programmer. For the first time in my life, I ran code directly on hardware, with no Operating System sitting between the bare metal and my…
Article word count: 1862

HN Discussion: https://news.ycombinator.com/item?id=18603632
Posted by andreaorru (karma: 508)
Post stats: Points: 112 - Comments: 16 - 2018-12-04T21:10:47Z

\#HackerNews #bare #bones #for #kernel #... mehr anzeigen

 
Looks like the (in)famous "#ext4 problems" in the #linux #kernel 4.19.x series happen due to a problem in the block layer (blk-mq to be precise). See
lore.kernel.org/linux-block/1d… for the patch that fixes it and bugzilla.kernel.org/show_bug.cgi?i… for some more details.


 
Linus complained about naming in one of the patches from the recent #Linux #kernel spectre v2 mitigation rework (): '[…] The above is not STIBP. It's just "disable IB". There's nothing "ST" about it.[…]' Here is Intels explanation: lore.kernel.org/lkml/84a1bd5c-…





 
For those that missed it over the weekend: The performance problem in the #Linux mainline #Kernel that happened due to improved #Spectre v2 protection was fixed over the weekend. A lot more details about this can be found in below thread from my Alter Ego @kernellogger

 
Bild/Foto
Bild/Foto

WTF... or #Linus, there are my comments "nigger", "faggot", "bitch" and "fucking feminists"?

Do you remember my previous article Politically correct Python… The next station is Linux? So, I am a prophet! :) Really!


https://lkml.org/lkml/2018/12/1/133
From Kees Cook <>
Date Fri, 30 Nov 2018 11:40:17 -0800
Subject Re: [PATCH RFC 00/15] Zero ****s, hugload of hugs wrote:
In order to comply with the CoC, replace **** with a hug.

Heh. I support the replacement of the stronger language, but I find
"hug", "hugged", and "hug
... mehr anzeigen

 
Das durch verbesserte #Spectre-v2 Gegenmaßnahmen entstandene Performance-Problem im #Linux mainline #Kernel sollte im Entwicklerzweig bzw. mit dem heute erwarteten 4.20-rc5 aus der Welt sein. Details dazu finden sich in folgendem Thread meines Alter Ego @kernellogger

 
The (in)famous #kernel performance regression in #Linux mainline/4.20-rc got fixed, as Linus merged the patch series that reworks the #STIBP stuff that helps mitigating #spectre v2. It's CCed stable and thus will show up in stable & longterm kernels, too. git.kernel.org/torvalds/c/4b7…


 
How we #spent two #weeks #hunting an #NFS #bug in the #Linux #kernel


Here's an in-depth recap of debugging a GitLab issue that culminated in a patch for the Linux kernel.
https://about.gitlab.com/2018/11/14/how-we-spent-two-weeks-hunting-an-nfs-bug/

 
Block/XFS: Support alternative mirror device retry "[…]If #XFS successfully reads a metadata buffer off a raid1 but decides that [it]is garbage, today it will shut down the entire fs without trying any of the other mirrors. This patch[…]" #linux #kernel
lore.kernel.org/linux-block/15…


 
"[…] The error message persisted for a long time, […]unless a system administrator […] by running ls in the directory itself. […] This post describes the journey of investigating the issue […] by which we tracked down the bug […]" #nfs #linux #kernel
about.gitlab.com/2018/11/14/how…


 

How we spent two weeks hunting an NFS bug in the Linux kernel


Here's an in-depth recap of debugging a GitLab issue that culminated in a patch for the Linux kernel.
Article word count: 2915

HN Discussion: https://news.ycombinator.com/item?id=18556775
Posted by fanf2 (karma: 11314)
Post stats: Points: 129 - Comments: 10 - 2018-11-28T23:43:04Z

\#HackerNews #bug #how #hunting #kernel #linux #... mehr anzeigen

 
#Linux #kernel

 
#Linux #Kernel 4.19.4 is under review now (till at least Friday) and will revert the #spectre v2 #STIBP mitigation patches which are responsible for the big #performance impact a lot news websites wrote about in the past few days. lore.kernel.org/lkml/201811211…


#Linux

 
A bunch of new Stable and Longterm #Linux #Kernel got released today. With those 4.18 is EOL now: "Note, this is the LAST 4.18.y kernel release. 4.18 is now end-of-life, please move to 4.19.y at this point in time." lore.kernel.org/lkml/201811211…


 

“The 's' is sad”: 4-year-old submits Linux kernel doc patch (2014)


diff options Documentation: fix formatting to make 's' happy"That letter [the last s] is sad because all the others have those things [=] below them and it does not." This patch fixes the tragedy so…
Article word count: 99

HN Discussion: https://news.ycombinator.com/item?id=18496471
Posted by wolfgang42 (karma: 1043)
Post stats: Points: 186 - Comments: 37 - 2018-11-20T18:46:14Z

\#HackerNews #2014 #4-year-old #doc #kernel #... mehr anzeigen

 
#DTrace based on #eBPF and other #Linux #kernel tracing facilities
lore.kernel.org/lkml/201811160…
"[…]We are envisioning a future for DTrace where we can leverage its strengths in the areas where it matters most […]while building on the existing tracing infrastructure in Linux. […]"


#DTrace

 
#Linux #kernel 4.20-rc2 is out lore.kernel.org/lkml/CAHk-=wiW… "[…] Fairly normal week […] about half drivers, wih the rest being the usual architecture updates, ooling, networking, and some filesystem updates. […] Go forth and test, […]"


#Linux

 
Pull Request tracker bot korg.wiki.kernel.org/userdoc/prtrac… "[…] sends automatic notifications when a pull request submitted to a mailing list has been merged to one of the #Linux #kernel repositories. […]at this time, it is only used to track mainline […] #LKML […]" Thx @monsieuricon!)


 
RHEL 7.6 based #Oracle #Linux 7 Update 6 is out: blogs.oracle.com/linux/announci… … Ships with Unbreakable Enterprise Kernel Release 5, released in June and based on #Linux #kernel 4.14: blogs.oracle.com/linux/announci…


 
#Linux #Kernel

 
As far as I can tell, people who pushed the HARDEST for the #linux COC had NEVER submitted ANY code for the #kernel

Never

Same with people who later complained about the COC and reportedly threatened to pull out their code (which they DO NOT HAVE)

 

Two Objects Not Namespaced by the Linux Kernel (2017)


Covers two Linux primitives that are not namespaced by the current set of Linux kernel namespaces.

HN Discussion: https://news.ycombinator.com/item?id=18349177
Posted by setra (karma: 3938)
Post stats: Points: 136 - Comments: 36 - 2018-10-31T20:49:02Z

\#HackerNews #2017 #kernel #linux #namespaced #not #objects #... mehr anzeigen

 

Kernel RCE in iOS/macOS with ICMP


The networking implementation in iOS and macOS contained a heap buffer overflow, which could be triggered by sending a malicious packet to the device. No user interaction was required. This post…
Article word count: 42

HN Discussion: https://news.ycombinator.com/item?id=18349942
Posted by dogecoinbase (karma: 1527)
Post stats: Points: 110 - Comments: 31 - 2018-10-31T23:04:34Z

\#HackerNews #icmp #ios #kernel #macos #... mehr anzeigen

 
- #Facebook #opensources new #suite of #Linux #kernel #components and #tools



An integral part of Facebook’s engineering culture has always been our development work on open source solutions that solve real-world production issues and address key challenges in modern large-scale cloud computing.
https://code.fb.com/open-source/linux/

 
"[…] we [Facebook]are announcing a suite of open source #Linux #kernel components and related tools that address critical fleet management issues. These include resource control, resource utilization, workload isolation, load balancing, measuring, […]" code.fb.com/open-source/li…

Facebook open-sources new suite of Linux kernel components and tools

 

Global Kernel Locks in APFS


HN Discussion: https://news.ycombinator.com/item?id=18332260
Posted by indygreg2 (karma: 539)
Post stats: Points: 132 - Comments: 43 - 2018-10-29T22:38:49Z

\#HackerNews #apfs #global #kernel #locks
Article content:

Over the past several months, a handful of people had been complaining that Mercurialʼs test harness was executing much slower on Macs. But this slowdown seemingly wasnʼt occurring on Linux or Windows. And not every Mac user experienced th... mehr anzeigen

 

One Windows Kernel


Windows is one of the most versatile and flexible operating systems out there, running on a variety of machine architectures and available in multiple SKUs. It currently supports x86, x64, ARM and…
Article word count: 2173

HN Discussion: https://news.ycombinator.com/item?id=18310035
Posted by MikusR (karma: 4541)
Post stats: Points: 181 - Comments: 97 - 2018-10-26T15:18:47Z

\#HackerNews #kernel #one #windows
Article content:

... mehr anzeigen

 
Laut Konferenzvorträgen sollen die Echtzeit-Patches (aka RT-Tree/PREEMPT_RT) bald in den #Linux #Kernel einfließen. Beim Handling von CPU-Lücken gab es Schwierigkeiten beim Zusammenspiel mit den Prozessorherstellern, die angegangen wurden. #meingeschreibsel

 
Zeit mitbringen, es wird umfangreich
#Linux 4.19 (Codename: "People's Front") ist da. Es kann schöner Booten und bekommt Langzeitpflege. Außerdem sollte der neue #Kernel die Akkulaufzeit einiger Notebooks verbessern. Das umstrittene Speck ist weiter dabei, steht aber auf der Abschussliste. Mit der Freigabe von 4.19 übernimmt Linus Torvalds wie erwartet wieder die Leitung der Entwicklung. Und BTW: ja, der Codename ist eine Monty-Python-Anspielung ;-)

 
Linux kernel 4.19 “People’s Front” released.

The fiery Finn and boss Linus Torvalds will be back for 4.20 development

This is going to be one of the "Long Term Supports" kernels to be maintained for a many years, that's
good news for everyone. Latest LTS was Linux 4.14 kernel.

Developer Greg Kroah-Hartman: "We used to joke that our goal was "Total World Domination", but it really wasn't a joke. We achieved that goal, Linux really does rule the
world. All companies use it, contribute to it, and it has ended up making the world a much better place because of all of us working on it."

==> https://fossbytes.com/linux-kernel-4-19-released-linus-torvalds-back/

#Linux #kernel #LTS #LongTerm #LinusTorvalds #HYPE
Linux Kernel 4.19 “People’s Front” Released; Linus Torvalds Back For 4.20 Development