#pragma section-numbers on #pragma keywords Linux, Kernel, Operative System, Linus Torvalds, Open Source, drivers #pragma description Summary of the changes and new features merged in the Linux Kernel during the 2.6.36 development cycle Linux 2.6.36 /!\ /!\ /!\ '''Warning: 2.6.36 has not been released''' /!\ /!\ /!\ '''Summary''': Linux 2.6.36 includes support for AppArmor, fanotify, a new out-of-memory killer, and concurrency-managed workqueues. (Note: Details on architecture-specific and driver changes have been moved to this page: [wiki:Linux_2_6_36-DriversArch Linux_2_6_36-DriversArch]) [[TableOfContents()]] = Prominent features (the cool stuff) = == AppArmor == The AppArmor security module. AppArmor provides pathname-based mandatory access control; it was initially championed by Novell some years ago. Novell has moved on, but Canonical has picked this code up, integrated it into the Ubuntu distribution, and (now) merged it into the mainline kernel. Code: [http://git.kernel.org/linus/cdff264264254e0fabc8107a33f3bb75a95e981f (commit 1], [http://git.kernel.org/linus/67012e8209df95a8290d135753ff5145431a666e 2], [http://git.kernel.org/linus/c75afcd153f6147d3b094f45a1d87e5df7f4f053 3], [http://git.kernel.org/linus/e06f75a6a2b43bd3a7a197bd21466f9da130e4af 4], [http://git.kernel.org/linus/63e2b423771ab0bc7ad4d407f3f6517c6d05cdc0 5], [http://git.kernel.org/linus/6380bd8ddf613b29f478396308b591867d401de4 6], [http://git.kernel.org/linus/898127c34ec03291c86f4ff3856d79e9e18952bc 7], [http://git.kernel.org/linus/c1c124e91e7c6d5a600c98f6fb5b443c403a14f4 8], [http://git.kernel.org/linus/f9ad1af53d5232a89a1ff1827102843999975dfa 9], [http://git.kernel.org/linus/b5e95b48685e3481139a5634d14d630d12c7d5ce 10], [http://git.kernel.org/linus/0ed3b28ab8bf460a3a026f3f1782bf4c53840184 11], [http://git.kernel.org/linus/736ec752d95e91e77cc0e8c97c057ab076ac2f51 12], [http://git.kernel.org/linus/c88d4c7b049e87998ac0a9f455aa545cc895ef92 13], [http://git.kernel.org/linus/4d6ec10bb4461fdc9a9ab94ef32934e13564e873 13], [http://git.kernel.org/linus/016d825fe02cd20fd8803ca37a1e6d428fe878f6 14], [http://git.kernel.org/linus/44672e4fbd40e2dda8bbce7d0f71d24dbfc7e00e 15)] == Tilera architecture support == The [http://en.wikipedia.org/wiki/TILE64 Tile processor] is a new cpu manufactured by [http://www.tilera.com/ Tilera Corporation]. It's a multicore design intended to scale to hundreds of cores on a single chip. The goal is to provide a high-performance CPU, with good power efficiency, and with greater flexibility than special-purpose processors such as DSPs. The chip consists of a mesh network of 64 "tiles", where each tile houses a general purpose processor, cache, and a non-blocking router, which the tile uses to communicate with the other tiles on the processor. Code: [http://git.kernel.org/linus/867e359b97c970a60626d5d76bbe2a8fadbf38fb (commit)], [http://git.kernel.org/linus/9f9c0382cda2334b35b40b00f4ed9d6f89f37a7b (commit)] == fanotify == fanotify - a mechanism allowing anti-malware scanning software to intercept file-oriented system calls and optionally block access to undesirable data. == New suspend mechanism == A new suspend mechanism intended to address the needs of the Android project (but which Android has not committed to using). == New infrared controller drivers == A number of infrared controller drivers from the LIRC project; these drivers have long been shipped by distributions despite their out-of-tree status, so this is a good development. == New out-of-memory killer == A new out-of-memory killer which, with luck, will improve the kernel's response when it runs completely out of RAM. == Concurrency-managed workqueues == Concurrency-managed workqueues have been merged; this is an important scalability patch which should reduce kernel threads and reduce CPU contention on larger systems. == Graphic improvements == * Kernel mode-setting support (but no form of 2D/3D/video acceleration) for the NVIDIA GeForce GTX 400 "Fermi" graphics cards via the Nouveau DRM driver * R300 through R500 Hyper-Z support for ATI graphics cards * R600 through R700 tiling support for ATI hardware * Intel driver has more Embedded DisplayPort enhancements * Support for reading thermal sensors on most R600 ASIC * R600 kernel bit state emission minimization * Improved suspend-and-resume support for the NV10 through NV40 GPUs * Improved NV50 DisplayPort along with hot-plug support = Various core changes = * fuse: add retrieve request [http://git.kernel.org/linus/2d45ba381a74a743eeaa2b06c7c5c0d2bf73ba1a (commit)], add store request [http://git.kernel.org/linus/a1d75f258230b75d46aecdf28b2e732413028863 (commit)] = Security = * TOMOYO * Add interactive enforcing mode. [http://git.kernel.org/linus/17fcfbd9d45b57f38d40e31f9d28db53f4af5c88 (commit)] * Add numeric values grouping support. [http://git.kernel.org/linus/4c3e9e2ded48bcf696a45945ea7d25bb15b873fd (commit)] * Add pathname aggregation support. [http://git.kernel.org/linus/1084307ca097745ed6e40a192329b133a49271ac (commit)] * Support longer pathname. [http://git.kernel.org/linus/c8c57e842720d8cc92ac8607f2d1c16d92314573 (commit)] = Filesystems = * Ext4 * Add mount options in superblock [http://git.kernel.org/linus/8b67f04ab9de5d8f3a71aef72bf02c995a506db5 (commit)], * Once a day, printk file system error information to dmesg [http://git.kernel.org/linus/66e61a9e9504f61b9a928c9055368c81da613a50 (commit)] * Save error information to the superblock for analysis [http://git.kernel.org/linus/1c13d5c0872870cca3e612aa045d492ead9ab004 (commit)] * Support discard requests when running in no-journal mode [http://git.kernel.org/linus/5c521830cf3dfcf7638d409d8e02ed21020c064f (commit)] * NILFS2 * Add barrier mount option [http://git.kernel.org/linus/773bc4f3b6898634a80a41c72a1f34cb89992dcd (commit)] * Add nodiscard mount option [http://git.kernel.org/linus/802d31775404ee335ca1e97a82e1e706a4c843be (commit)] * Add feature set fields to super block [http://git.kernel.org/linus/1a80a1763fb760b3a84a28df87515f7cdc07a4f4 (commit)] * Reject incompatible filesystem [http://git.kernel.org/linus/c5ca48aabe8b11674bf1102abe52d17ecc053f9c (commit)] * XFS * Simplify and speed up direct I/O completions [http://git.kernel.org/linus/209fb87a259ead17e966627b7f053d16a96898da (commit)] * Remove obsolete osyncisosync mount option [http://git.kernel.org/linus/a64afb057b607c04383ab5fb53c51421ba18c434 (commit)] * CEPH * Add flock/fcntl lock support [http://git.kernel.org/linus/40819f6fb227c1832935b775ac22aef10aa6f6dd (commit)] * Add LAZYIO ioctl to mark a file description for lazy consistency [http://git.kernel.org/linus/8c6e9229fc1989cf263a6fcd4ff406d7f473f966 (commit)] * CIFS: Support local caching [http://git.kernel.org/linus/fa1df75d4debde6d843e616df656f50a92958737 (commit)] * Ext3: default to ordered mode [http://git.kernel.org/linus/aa32a796389bedbcf1c7714385b18714a0743810 (commit)] * Squashfs: Add LZO compression support [http://git.kernel.org/linus/79cb8ced7eef53856b5a877db0544acf52e00c80 (commit)] * AFS: Implement an autocell mount capability [http://git.kernel.org/linus/bec5eb6141308a30a73682330cb045a40e442b8c (commit)] = Networking = * Add getsockopt support for TCP thin-streams [http://git.kernel.org/linus/3c0fef0b7d36e5f8d3ea3731a8228102274e3c23 (commit)] * Enable 64-bit net device statistics on 32-bit architectures [http://git.kernel.org/linus/be1f3c2c027cc5ad735df6a45a542ed1db7ec48b (commit)] * Optimize Berkeley Packet Filter (BPF) processing [http://git.kernel.org/linus/01f2f3f6ef4d076c0c10a8a7b42624416d56b523 (commit)] * Netfilter * Add CHECKSUM target [http://git.kernel.org/linus/edf0e1fb0d0910880881523cfaaabcec06a2c0d5 (commit)] * Add xt_cpu match [http://git.kernel.org/linus/e8648a1fdb54da1f683784b36a17aa65ea56e931 (commit)] * ipt_LOG/ip6t_LOG: add option to print decoded MAC header [http://git.kernel.org/linus/7eb9282cd0efac08b8377cbd5037ba297c77e3f7 (commit)] * xtables: idletimer target implementation [http://git.kernel.org/linus/0902b469bd25065aa0688c3cee6f11744c817e7c (commit)] * xt_ipvs (netfilter matcher for IPVS) [http://git.kernel.org/linus/9c3e1c39679144c250dda95098333ecb5f1f407a (commit)] * 9p: Define and implement TLINK for 9P2000.L [http://git.kernel.org/linus/09d34ee5f93b2e53b64ffba27bc18731e31154e1 (commit)], [http://git.kernel.org/linus/652df9a7fd03cb47a3f663f0c08a2bd086505e9b (commit)], define and implement TSYMLINK for 9P2000.L [http://git.kernel.org/linus/50cc42ff3d7bc48a436c5a0413459ca7841b505f (commit)], getattr client implementation for 9P2000.L protocol. [http://git.kernel.org/linus/f085312204f384a0277a66c3c48ba8f9edcd58f2 (commit)], client side of setattr for 9P2000.L protocol. [http://git.kernel.org/linus/87d7845aa0b157a62448dd3e339856f28befe1f4 (commit)], implement LOPEN [http://git.kernel.org/linus/ef56547efa3c88609069e2a91f46e25c31dd536e (commit)], implement TMKDIR [http://git.kernel.org/linus/01a622bd7409bb7af38e784cff814e5e723f7951 (commit)], implement TMKNOD [http://git.kernel.org/linus/4b43516ab19b748b48322937fd9307af17541c4d (commit)], readdir implementation for 9p2000.L [http://git.kernel.org/linus/7751bdb3a095ad32dd4fcff3443cf8dd4cb1e748 (commit)], implement attrwalk 9p call [http://git.kernel.org/linus/0ef63f345c48afe5896c5cffcba57f0457d409b9 (commit)], implement TXATTRCREATE 9p call [http://git.kernel.org/linus/eda25e46161527845572131b37706a458d9270ef (commit)] * bonding: allow user-controlled output slave selection [http://git.kernel.org/linus/bb1d912323d5dd50e1079e389f4e964be14f0ae3 (commit)] * ipv4: add LINUX_MIB_IPRPFILTER snmp counter [http://git.kernel.org/linus/b5f7e7554753e2cc3ef3bef0271fdb32027df2ba (commit)] * IPVS: make FTP work with full NAT support [http://git.kernel.org/linus/7f1c407579519e71a0dcadc05614fd98acec585e (commit)], one-packet scheduling [http://git.kernel.org/linus/26ec037f9841e49cc5c615deb8e1e73e5beab2ca (commit)] * nl80211: Add option to adjust transmit power [http://git.kernel.org/linus/98d2ff8bec82fc35fe2008a187a5fef9241dab10 (commit)] * syncookies: add support for ECN [http://git.kernel.org/linus/172d69e63c7f1e8300d0e1c1bbd8eb0f630faa15 (commit)] * vlan: allow TSO setting on vlan interfaces [http://git.kernel.org/linus/a204b48ed4dc31acf61090e530430ce3272b6aab (commit)] = DM = * delay: support discard [http://git.kernel.org/linus/3fd5d48027181168ce85e8094b926aeb9f34c556 (commit)] * linear support discard [http://git.kernel.org/linus/5ae89a8720c28caf35c4e53711d77df2856c404e (commit)] * mpath: support discard [http://git.kernel.org/linus/959eb4e5592cc0b0b07db0ca30d2b1efd790020f (commit)] * dm stripe: support discards [http://git.kernel.org/linus/7b76ec11fec40203836b488496d2df082d5b2022 (commit)] * snapshot: implement merge method for the snapshot origin to improve read performance [http://git.kernel.org/linus/b1d5552838334c600b068c9c8cc18638e5a8cb47 (commit)]