A new XanMod Linux Kernel based on Linux Kernel 5.9.3 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 [5.8], linux-xanmod-edge [5.8], linux-xanmod-lts [5.4], linux-xanmod-rt-edge [5.6-rt] and linux-xanmod-rt [5.4-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 5.9.3-xanmod1

• c3b3581 Linux 5.9.3-xanmod1
• 321d720 Merge tag 'v5.9.3' into 5.9
  |\
  | *  36a4324 Linux 5.9.3
  | *  2e9e042 phy: marvell: comphy: Convert internal SMCC firmware return codes to errno
  | *  0aa1346 misc: rtsx: do not setting OC_POWER_DOWN reg in rtsx_pci_init_ocp()
  | *  753456e io_uring: don't reuse linked_timeout
  | *  4683c54 xen/gntdev.c: Mark pages as dirty
  | *  95528c8 mm: mark async iocb read as NOWAIT once some data has been copied
  | *  90adb2b ata: sata_rcar: Fix DMA boundary mask
  | *  70ed5fd PM: runtime: Fix timer_expires data type on 32-bit arches
  | *  43a6a86 serial: pl011: Fix lockdep splat when handling magic-sysrq interrupt
  | *  9b08729 serial: qcom_geni_serial: To correct QUP Version detection logic
  | *  124fff2 drm/i915/gem: Serialise debugfs i915_gem_objects with ctx->mutex
  | *  d07ca3e mtd: lpddr: Fix bad logic in print_drs_error
  | *  35a1d62 RDMA/addr: Fix race with netevent_callback()/rdma_addr_cancel()
  | *  0f6dd1b cxl: Rework error message for incompatible slots
  | *  15cb0bd p54: avoid accessing the data mapped to streaming DMA
  | *  7ee1fb6 evm: Check size of security.evm before using it
  | *  ac35c64 bpf: Fix comment for helper bpf_current_task_under_cgroup()
  | *  ddd1165 fuse: fix page dereference after free
  | *  4e4b514 ata: ahci: mvebu: Make SATA PHY optional for Armada 3720
  | *  be78d46 PCI: aardvark: Fix initialization with old Marvell's Arm Trusted Firmware
  | *  68cd475 x86/xen: disable Firmware First mode for correctable memory errors
  | *  f896655 x86/traps: Fix #DE Oops message regression
  | *  f8326b0 arch/x86/amd/ibs: Fix re-arming IBS Fetch
  | *  5929270 erofs: avoid duplicated permission check for "trusted." xattrs
  | *  a74045f net: protect tcf_block_unbind with block lock
  | *  bddce77 net/smc: fix suppressed return code
  | *  e7935fa net/smc: fix invalid return code in smcd_new_buf_create()
  | *  edb2c93 tipc: fix memory leak caused by tipc_buf_append()
  | *  fcd0345 tcp: Prevent low rmem stalls with SO_RCVLOWAT.
  | *  015b4a1 ravb: Fix bit fields checking in ravb_hwtstamp_get()
  | *  434b20a r8169: fix issue with forced threading in combination with shared interrupts
  | *  196cec6 net/sched: act_mpls: Add softdep on mpls_gso.ko
  | *  50dd09c net: ipa: command payloads already mapped
  | *  fb596e9 net: hns3: Clear the CMDQ registers before unmapping BAR region
  | *  b8858e0 netem: fix zero division in tabledist
  | *  d021dd2 mlxsw: Only advertise link modes supported by both driver and device
  | *  f267b0a mlxsw: core: Fix memory leak on module removal
  | *  8cf5f59 ibmvnic: fix ibmvnic_set_mac
  | *  fa14e0a ibmveth: Fix use of ibmveth in a bridge.
  | *  d0cf5ae gtp: fix an use-before-init in gtp_newlink()
  | *  185161b cxgb4: set up filter action after rewrites
  | *  676a2b8 chelsio/chtls: fix tls record info to user
  | *  a368a6e chelsio/chtls: fix memory leaks in CPL handlers
  | *  6e3163c chelsio/chtls: fix deadlock issue
  | *  c4fd583 bnxt_en: Send HWRM_FUNC_RESET fw command unconditionally.
  | *  c32f632 bnxt_en: Re-write PCI BARs after PCI fatal error.
  | *  0123694 bnxt_en: Invoke cancel_delayed_work_sync() for PFs also.
  | *  9959fda bnxt_en: Fix regression in workqueue cleanup logic in bnxt_remove_one().
  | *  524dfe6 bnxt_en: Check abort error state in bnxt_open_nic().
  | *  4e6767c efivarfs: Replace invalid slashes with exclamation marks in dentries.
  | *  4f28b1f x86/copy_mc: Introduce copy_mc_enhanced_fast_string()
  | *  a85748e x86, powerpc: Rename memcpy_mcsafe() to copy_mc_to_{user, kernel}()
  | *  ff0028e x86/PCI: Fix intel_mid_pci.c build error when ACPI is not enabled
  | *  4497727 arm64: link with -z norelro regardless of CONFIG_RELOCATABLE
  | *  0c4636d arm64: Run ARCH_WORKAROUND_2 enabling code on all CPUs
  | *  32b38af arm64: Run ARCH_WORKAROUND_1 enabling code on all CPUs
  | *  0baaa4a fs/kernel_read_file: Remove FIRMWARE_EFI_EMBEDDED enum
  | *  5a91009 efi/arm64: libstub: Deal gracefully with EFI_RNG_PROTOCOL failure
  | *  fb66242 scripts/setlocalversion: make git describe output more reliable
  | *  db4d1a3 io_uring: Convert advanced XArray uses to the normal API
  | *  a05b5f7 io_uring: Fix XArray usage in io_uring_add_task_file
  | *  4f0cc46 io_uring: Fix use of XArray in __io_uring_files_cancel
  | *  f048478 io_uring: no need to call xa_destroy() on empty xarray
  | *  36a44d2 io-wq: fix use-after-free in io_wq_worker_running
  | *  89e5193 io_wq: Make io_wqe::lock a raw_spinlock_t
  | *  bfa36f7 io_uring: reference ->nsproxy for file table commands
  | *  adb6bf5 io_uring: don't rely on weak ->files references
  | *  eeb3eb7 io_uring: enable task/files specific overflow flushing
  | *  776dcd2 io_uring: return cancelation status from poll/timeout/files handlers
  | *  30db0a0 io_uring: unconditionally grab req->task
  | *  89197cd io_uring: stash ctx task reference for SQPOLL
  | *  cf38360 io_uring: move dropping of files into separate helper
  | *  2c54017 io_uring: allow timeout/poll/files killing to take task into account
  | *  10cf2d8 netfilter: nftables_offload: KASAN slab-out-of-bounds Read in nft_flow_rule_create
  | *  0e26e64 cpufreq: Improve code around unlisted freq check
• fc12d8f Revert "mm: set 2 megabytes for address_space-level file read-ahead pages size"
• 5cbd798 Revert "mm: set to 8 megabytes for address_space-level file read-ahead pages size"
• aaf08d2 builddeb: Add linux-tools package with perf

Homepage
Download Linux 5.9.3-xanmod1 source from GitHub