Linux_4.20 - Linux Kernel Newbies
Linux 4.20 was released on Sun, 23 Dec 2018. Summary: This release includes support for a new way to measure the system load; it adds support for future AMD Radeon Picasso and Raven2 and enables non-experimental support for Radeon Vega20; it adds support for the C-SKY CPU architecture and the x86 Hygon Dhyana CPUs; a TLB microoptimization brings a small performance win in some workloads; TCP has s
Linux_4.19 - Linux Kernel Newbies
Linux 4.19 was released on Monday, 22 October. Summary: This release adds: the CAKE network queue management to fight bufferbloat, it is designed to fight intended to squeeze the most bandwidth and latency out of even the slowest ISP links and routers; support for guaranteeing minimum I/O latency targets for cgroups; experimental support for the future Wi-Fi 6 (802.11ax-drafts); memory usage for o
Linux_4.18 - Linux Kernel Newbies
Linux 4.18 has been released on 12 August, 2018. Summary: This release includes the new "Restartable sequences" system call, which makes easier to write scalable userspace code; support for unprivileged mounts; the beginning of bpfilter project that aims to provide netfilter functionality using BPF; a zero-copy TCP receive API; a new AF_XDP address family for high performance networking; support f
Linux_2_6_32 - Linux Kernel Newbies
Linux 2.6.32 has been released on December 3rd 2009. Summary: This version adds virtualization memory de-duplication, a rewrite of the writeback code which provides noticeable performance speedups, many important Btrfs improvements and speedups, ATI R600/R700 3D and KMS support and other graphic improvements, a CFQ low latency mode, tracing improvements including a "perf timechart" tool that tries
Linux_4.17 - Linux Kernel Newbies
Linux 4.17 has been released on 3 June 2018. Summary: This release adds support for AMD Radeon Vega 12 and it enables the "display code" by default in supported AMD Radeon GPUs; it also adds a kernel TLS receive path; a more efficient idle loop that prevent CPUs from spending too much time in shallow idle states; eight unmaintained architectures have been removed and another, the Andes NDS32 archi
KernelBuild - Linux Kernel Newbies
Guide to building the Linux kernel. Where do I find the kernel? The latest source code for the Linux kernel is kept on kernel.org. You can either download the full source code as a tar ball (not recommended and will take forever to download), or you can check out the code from the read-only git repositories. What tools do I need? To build the Linux kernel from source, you need several tools: git,
Kernel001WalkThrough - Linux Kernel Newbies
Kernel 0.01 Walkthrough. After downloading Kernel 0.01 and unpacking the archive, you'll be facing a directory "linux" containing, in subdirectories, some 5900 lines of (more or less) ANSI C, around 2500 lines of C headers (#include files) and around 1450 lines of i386 assembler. The linux 0.01 kernel source is at http://www.kernel.org/pub/linux/kernel/Historic/ The code directories are as follows
Diff for "OutreachyfirstpatchSetup" - Linux Kernel Newbies
Developing on a native Linux platform These instructions assume you're running a variant of Ubuntu (like 12.04 LTS). Install some packages First, open a terminal. Click the ubuntu logo at the top left corner and type "terminal". Click the terminal screen icon. Tip: You may want to pin the terminal app for easy access. Do that by hitting the Windows logo key, moving your mouse over the terminal ico
Linux_4.16 - Linux Kernel Newbies
Linux 4.16 has been released on Sun, 1 Apr 2018. Summary: Besides the latest code to deal with CPU security bugs, this release declares the reverse mapping and reflink features as stable, membarrier(2) adds expedited support, SMB3 Direct (RDMA) support, adds the x86 jailhouse hypervisor which is able to statically partition a multicore system into multiple so-called cells, support for PowerPC memo
FAQ/DoWhile0 - Linux Kernel Newbies
Why do a lot of #defines in the kernel use do { ... } while(0)? There are a couple of reasons: (from Dave Miller) Empty statements give a warning from the compiler so this is why you see #define FOO do { } while(0). (from Dave Miller) It gives you a basic block in which to declare local variables. (from Ben Collins) It allows you to use more complex macros in conditional code. Imagine a macro of s
LinuxChanges - Linux Kernel Newbies
Changes done in each Linux kernel release. Other places to get news about the Linux kernel are LWN kernel status or the Linux Kernel mailing list (there is a web interface in www.lkml.org or lore.kernel.org/lkml). The lore.kernel.org/lkml/ archive is also available via NTTP if you prefer to use a newsreader: use nntp://nntp.lore.kernel.org/org.kernel.vger.linux-kernel for that. List of changes of
Linux_4.15 - Linux Kernel Newbies
Linux 4.15 has been released on 28 Jan 2018. Summary: Besides the latest code to deal with Meltdown/Spectre, this release includes modesetting and advanced display features for the amdgpu driver; improved power management support of systems with SATA Aggressive Link Power Management; a port for the open RISC-V CPUs; initial support for virtualized memory encryption in AMD CPUs; support for the Int
Linux_3.13 - Linux Kernel Newbies
Linux 3.13 was released on Sun, 19 Jan 2014. Summary: This release includes nftables, the successor of iptables, a revamp of the block layer designed for high-performance SSDs, a power capping framework to cap power consumption in Intel RAPL devices, improved squashfs performance, AMD Radeon power management enabled by default and automatic Radeon GPU switching, improved NUMA performance, improved
Linux_4.14 - Linux Kernel Newbies
Linux 4.14 has been released on 12 Nov 2017. Summary: This release includes support for bigger memory limits in x86 hardware (128PiB of virtual address space, 4PiB of physical address space); support for AMD Secure Memory Encryption; a new unwinder that provides better kernel traces and a smaller kernel size; a cgroups "thread mode" that allows resource distribution across the threads of a group o
Linux_Kernel_Newbies - Linux Kernel Newbies
Kernelnewbies is a community of aspiring Linux kernel developers who work to improve their Kernels and more experienced developers willing to share their knowledge. Kernelnewbies can be found on the MailingList, IRC (irc.oftc.net #kernelnewbies), and this wiki. Outreachy Potential Outreachy applicants, please go to the Outreachyfirstpatch. ChangeLog A human readable changelog for the Linux kernel
Linux_4.13 - Linux Kernel Newbies
Linux 4.13 has been released on Sun, 3 Sep 2017. Summary: This release adds support in Ext4 for very large number of directory entries, support in Ext4 for extended attributes up to 64k, improvements in asynchronous I/O, improved error handling in background writes, improved error handling in the block layer, kernel TLS acceleration, and many other improvements. 1. Prominent features 1.1. Asynchro
Linux_4.12 - Linux Kernel Newbies
Linux 4.12 has been released on Sun, 2 July 2017. Summary: This release includes a new BFQ I/O scheduler which provides a much better interactive experience; it also includes preliminary support for Radeon RX Vega graphic cards and support for USB Type-C connectors; improvements to the live kernel patching feature, support for Intel IMSM's Partial Parity Log which allows to close the RAID5 write h
Linux_3.17 - Linux Kernel Newbies
Linux 3.17 has been released on Sun, 5 Oct Summary: This release adds support for USB device sharing over IP, support for Xbox One controllers, support for Apple's thunderbolt, a new sealing API that restricts operations on shared memory file descriptors that allows easier shared memory programming for developers, support for page fault tracing in perf trace, support for only using signed kernels
Ext4 - Linux Kernel Newbies
WARNING: This page is not up to date, check the official wiki and other documentation Ext4 is part of the Linux 2.6.28 kernel, read the previous link to know more details about that release. 1. Introduction Ext4 is the evolution of the most used Linux filesystem, Ext3. In many ways, Ext4 is a deeper improvement over Ext3 than Ext3 was over Ext2. Ext3 was mostly about adding journaling to Ext2, but
Documents/Kernel-Docbooks - Linux Kernel Newbies
Here you can find the latest Docbooks generated from the Linux kernel source.
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