A new XanMod Linux Kernel based on  Linux Kernel 5.14 has been released. XanMod is a general-purpose Linux kernel distribution with custom settings and new features. The real-time version is recommended for critical runtime applications such as Linux gaming eSports, streaming, live productions and ultra-low latency enthusiasts.

XanMod is a general-purpose Linux kernel distribution with custom settings and new features. Built to provide a stable, responsive and smooth desktop experience.

The real-time version is recommended for critical runtime applications such as Linux gaming eSports, streaming, live productions and ultra-low latency enthusiasts.

Supports all recent 64-bit versions of Debian and Ubuntu-based systems.

Main Features

• Preemptive Full Tickless Kernel at 500Hz w/ Tuned CPU Core Scheduler.
• RCU Boost for better responsiveness and lower overall system latency.
• Block Layer w/ multi-threaded runqueue for high I/O throughput.
• Caching, Virtual Memory Manager and CPUFreq Governor improvements.
• BBR TCP Congestion Control + FQ-PIE Packet Scheduling and AQM Algorithm [5.8].
• ORC Unwinder for Kernel Stack Traces (debuginfo) implementation.
• Third-party patchset available: ZSTD kernel, initrd and modules support [5.8][5.6-rt], Full x86_64 FSGSBASE instructions [5.8], Clear Linux [partial], CK's Hrtimer Patchset [5.8][5.4], Wine / Proton Fsync, PCIe ACS Override, BMQ Process Scheduler [5.4 stock disabled], Aufs [5.4] and GCC graysky's.
• Real-time Linux kernel (PREEMPT_RT) build available [5.6-rt][5.4-rt].
• Generic kernel package for compatibility with most Debian & Ubuntu based distributions. Built on the latest GCC 10.2 and Binutils 2.35.
• GPLv2 license. Can be built for any distribution or purpose.

Install via Terminal

echo 'deb  http://deb.xanmod.org releases main' | sudo tee /etc/apt/sources.list.d/xanmod-kernel.list && wget -qO -  https://dl.xanmod.org/gpg.key | sudo apt-key add -

Then update and install:

sudo apt update && sudo apt install linux-xanmod

Reboot.

Meta packages available: linux-xanmod, linux-xanmod-edge, linux-xanmod-lts, linux-xanmod-rt-edge and linux-xanmod-rt.

To try without adding the repository

Download from Sourceforge and install:
https://sourceforge.net/projects/xanmod/files/

1. In terminal:

   sudo dpkg -i linux-image-*xanmod*.deb linux-headers-*xanmod*.deb

2. Reboot.

• Check it:

  cat /proc/version

* linux-firmware-image package is optional

Linux 5.14.0-xanmod1

• 8c839bf Linux 5.14.0-xanmod1
• 6317b65 netfilter: Add full cone NAT support
• 74a2070 fs/ntfs3: Restyle comments to better align with kernel-doc
• cdba19c fs/ntfs3: Rework file operations
• 46a09b9 fs/ntfs3: Remove fat ioctl's from ntfs3 driver for now
• a150864 fs/ntfs3: Restyle comments to better align with kernel-doc
• 8238069 fs/ntfs3: Fix error handling in indx_insert_into_root()
• ecda7a7 fs/ntfs3: Potential NULL dereference in hdr_find_split()
• df5d9bb fs/ntfs3: Fix error code in indx_add_allocate()
• 548f3a8 fs/ntfs3: fix an error code in ntfs_get_acl_ex()
• a84a0bb fs/ntfs3: add checks for allocation failure
• 582437a fs/ntfs3: Use kcalloc/kmalloc_array over kzalloc/kmalloc
• 3d45b18 fs/ntfs3: Do not use driver own alloc wrappers
• 7b2edf8 fs/ntfs3: Use kernel ALIGN macros over driver specific
• 6071926 fs/ntfs3: Restyle comment block in ni_parse_reparse()
• 75d85f8 fs/ntfs3: Remove unused including
• 208e2b5 fs/ntfs3: Fix fall-through warnings for Clang
• dba4116 fs/ntfs3: Fix one none utf8 char in source file
• 448da00 fs/ntfs3: Remove unused variable cnt in ntfs_security_init()
• 7848a6f fs/ntfs3: Fix integer overflow in multiplication
• 9457b12 fs/ntfs3: Add ifndef + define to all header files
• cfab079 fs/ntfs3: Use linux/log2 is_power_of_2 function
• 6ac3cde fs/ntfs3: Fix various spelling mistakes
• 7aeab99 fs/ntfs3: Add MAINTAINERS
• 9e3c3d0 fs/ntfs3: Add NTFS3 in fs/Kconfig and fs/Makefile
• 93ead8f fs/ntfs3: Add Kconfig, Makefile and doc
• fd63d37 fs/ntfs3: Add NTFS journal
• d3f5f3a fs/ntfs3: Add compression
• cb25eb8 fs/ntfs3: Add attrib operations
• 9d01713 fs/ntfs3: Add file operations and implementation
• 018d792 fs/ntfs3: Add bitmap
• 5bf9cd7 fs/ntfs3: Add initialization of super block
• 7f3f485 fs/ntfs3: Add headers and misc files
• 418f552 pci: Enable overrides for missing ACS capabilities
• 0803441 x86/kconfig: more uarches for kernel 5.8+
• af2d931 init: wait for partition and retry scan
• a41a87f drivers: initialize ata before graphics
• 80e01b0 locking: rwsem: spin faster
• 5948ca1 firmware: Enable stateless firmware loading
• 09e053e intel_rapl: Silence rapl trace debug
• 0196fd6 SAUCE: binder: give binder_alloc its own debug mask file
• 0470962 SAUCE: binder: turn into module
• 7183da0 SAUCE: ashmem: turn into module
• 97e857f sysctl: add sysctl to disallow unprivileged CLONE_NEWUSER by default
• f6002a6 net-tcp_bbr: v2: Fix missing ECT markings on retransmits for BBRv2
• 68856d4 net-tcp_bbr: v2: don't assume prior_cwnd was set entering CA_Loss
• 7de3f36 net-tcp_bbr: v2: remove cycle_rand parameter that is unused in BBRv2
• dfedade net-tcp_bbr: v2: remove field bw_rtts that is unused in BBRv2
• 7882fdd net-tcp_bbr: v2: remove unnecessary rs.delivered_ce logic upon loss
• 7292373 net-tcp_bbr: v2: BBRv2 ("bbr2") congestion control for Linux TCP
• 002c56a net-tcp: add fast_ack_mode=1: skip rwin check in tcp_fast_ack_mode__tcp_ack_snd_check()
• aaac92a net-tcp: re-generalize TSO sizing in TCP CC module API
• 7df691b net-tcp: add new ca opts flag TCP_CONG_WANTS_CE_EVENTS
• 358fdae net-tcp_bbr: v2: set tx.in_flight for skbs in repair write queue
• 88004ea net-tcp_bbr: v2: adjust skb tx.in_flight upon split in tcp_fragment()
• 817fad8 net-tcp_bbr: v2: adjust skb tx.in_flight upon merge in tcp_shifted_skb()
• 3fe3672 net-tcp_bbr: v2: factor out tx.in_flight setting into tcp_set_tx_in_flight()
• 1a21903 net-tcp_bbr: v2: introduce ca_ops->skb_marked_lost() CC module callback API
• a88fb3d net-tcp_bbr: v2: export FLAG_ECE in rate_sample.is_ece
• 3c836d6 net-tcp_bbr: v2: count packets lost over TCP rate sampling interval
• a9dca3c net-tcp_bbr: v2: snapshot packets in flight at transmit time and pass in rate_sample
• 72b3d52 net-tcp_bbr: v2: shrink delivered_mstamp, first_tx_mstamp to u32 to free up 8 bytes
• 4beae98 net-tcp_rate: account for CE marks in rate sample
• e1fa0b1 net-tcp_rate: consolidate inflight tracking approaches in TCP
• e99a898 net-tcp_bbr: broaden app-limited rate sample detection
• 50bc1ff lib: zstd: Upgrade to latest upstream zstd version 1.4.10
• 2f70151 lib: zstd: Add decompress_sources.h for decompress_unzstd
• 041ebfb lib: zstd: Add kernel-specific API
• 965d7f4 futex: Implement mechanism to wait on any of several futexes
• 6e77d35 futex2: proton
• b1a704d futex2: Add sysfs entry for syscall numbers
• fd4d81c perf bench: Add futex2 benchmark tests
• 8d639ea selftests: futex2: Add waitv test
• 81056be selftests: futex2: Add wouldblock test
• 33eaaee selftests: futex2: Add timeout test
• ed8b670 selftests: futex2: Add wake/wait test
• c98b09c docs: locking: futex2: Add documentation
• a1fa8fc futex2: Implement vectorized wait
• 60e07a8 futex2: Implement wait and wake functions
• b0a3be5 mm/vmscan: add sysctl knobs for protecting the working set
• fd0956e mm: multigenerational lru: documentation
• 5b37aed mm: multigenerational lru: Kconfig
• 29c00f0 mm: multigenerational lru: user interface
• 1d0e609 mm: multigenerational lru: eviction
• b87b0bd mm: multigenerational lru: aging
• 6658557 mm: multigenerational lru: mm_struct list
• 047aa50 mm: multigenerational lru: protection
• 6016b64 mm: multigenerational lru: groundwork
• e224026 mm/vmscan.c: refactor shrink_node()
• 350e350 mm: x86: add CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG
• 3bdf11d mm: x86, arm64: add arch_has_hw_pte_young()
• 81632bc char/lrng: add power-on and runtime self-tests
• d3c8b63 char/lrng: add interface for gathering of raw entropy
• c635a8a char/lrng: add SP800-90B compliant health tests
• 3172048 char/lrng: add Jitter RNG fast noise source
• 413a247 crypto: provide access to a static Jitter RNG state
• b73b936 char/lrng: add kernel crypto API PRNG extension
• 3c8d958 char/lrng: add SP800-90A DRBG extension
• 772b435 crypto: drbg - externalize DRBG functions for LRNG
• 289ae6f char/lrng: add common generic hash support
• 255b2f8 char/lrng: add switchable DRNG support
• 44dab88 char/lrng: sysctls and /proc interface
• 70d7ec6 char/lrng: allocate one DRNG instance per NUMA node
• 80dde18 drivers: Introduce the Linux Random Number Generator
• 072a55e clockevents, hrtimer: Make hrtimer granularity and minimum hrtimeout configurable in sysctl. Set default granularity to 100us and min timeout to 500us
• 4c9484b time: Don't use hrtimer overlay when pm_freezing since some drivers still don't correctly use freezable timeouts.
• 33c7803 hrtimer: Replace all calls to schedule_timeout_uninterruptible of potentially under 50ms to use schedule_msec_hrtimeout_uninterruptible
• 1db9c63 hrtimer: Replace all calls to schedule_timeout_interruptible of potentially under 50ms to use schedule_msec_hrtimeout_interruptible.
• 9de56a6 hrtimer: Replace all schedule timeout(1) with schedule_min_hrtimeout()
• d12a11b timer: Convert msleep to use hrtimers when active.
• 489c979 time: Special case calls of schedule_timeout(1) to use the min hrtimeout of 1ms, working around low Hz resolutions.
• d918ad3 hrtimer: Create highres timeout variants of schedule_timeout functions.
• 0f18402 XANMOD: fair: Remove all energy efficiency functions
• fc28a76 XANMOD: Makefile: Turn off loop vectorization for GCC -O3 optimization level
• ad53ae3 XANMOD: init/Kconfig: Enable -O3 KBUILD_CFLAGS optimization for all architectures
• 441d0b8 XANMOD: lib/kconfig.debug: disable default CONFIG_SYMBOLIC_ERRNAME and CONFIG_DEBUG_BUGVERBOSE
• 19dc971 XANMOD: scripts: disable the localversion "+" tag of a git repo
• 933a3df XANMOD: cpufreq: tunes ondemand and conservative governor for performance
• f76b203 XANMOD: mm/vmscan: vm_swappiness = 30 decreases the amount of swapping
• 9171c3f XANMOD: sched/autogroup: Add kernel parameter and config option to enable/disable autogroup feature by default
• 0f67d47 XANMOD: dcache: cache_pressure = 50 decreases the rate at which VFS caches are reclaimed
• 7fb8252 XANMOD: kconfig: set PREEMPT and RCU_BOOST without delay by default
• aeadb68 XANMOD: kconfig: add 500Hz timer interrupt kernel config option
• 1330aad XANMOD: block: set rq_affinity to force full multithreading I/O requests
• ad0a45a XANMOD: block, bfq: change BLK_DEV_ZONED depends to IOSCHED_BFQ
• 570e1b5 XANMOD: elevator: set default scheduler to bfq for blk-mq
• 7d2a07b Linux 5.14

Homepage
Download Linux 5.14.0-xanmod1 source from GitHub