A new XanMod Linux Kernel based on Linux Kernel 6.6.42 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.

Linux 6.6.42-xanmod1

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

Change log

• 1d86a31 Linux 6.6.42-xanmod1
• 7c69258 Merge tag 'v6.6.42' into 6.6
• 31cf7eb Linux 6.6.42
• 9e67589 cachefiles: fix slab-use-after-free in cachefiles_withdraw_cookie()
• 9dd7f56 cachefiles: fix slab-use-after-free in fscache_withdraw_volume()
• 5c5a577 netfs, fscache: export fscache_put_volume() and add fscache_try_get_volume()
• 6f1fc7f wifi: iwlwifi: mvm: don't wake up rx_sync_waitq upon RFKILL
• ba780cb wifi: mac80211: disable softirqs for queued frame handling
• de3994a wifi: cfg80211: wext: set ssids=NULL for passive scans
• 9ca15d7 of/irq: Disable "interrupt-map" parsing for PASEMI Nemo
• b0fc1bd Bluetooth: L2CAP: Fix deadlock
• 16380f5 mm: page_ref: remove folio_try_get_rcu()
• 170ce55 ARM: 9324/1: fix get_user() broken with veneer
• c15682e cifs: fix noisy message on copy_file_range
• 05ffaf4 ALSA: hda: Use imply for suggesting CONFIG_SERIAL_MULTI_INSTANTIATE
• dcd61f3 spi: mux: set ctlr->bits_per_word_mask
• e41db26 selftests/bpf: Extend tcx tests to cover late tcx_entry release
• f08956d hfsplus: fix uninit-value in copy_name
• 54f137e selftests/vDSO: fix clang build errors and warnings
• 69f6e9b selftest/timerns: fix clang build failures for abs() calls
• 8a3f2ad ASoC: SOF: Intel: hda-pcm: Limit the maximum number of periods by MAX_BDL_ENTRIES
• d59ccdc ksmbd: return FILE_DEVICE_DISK instead of super magic
• bd3ca9b spi: imx: Don't expect DMA for i.MX{25,35,50,51,53} cspi devices
• 55f6da7 riscv: stacktrace: fix usage of ftrace_graph_ret_addr()
• b0fe6e7 drivers/perf: riscv: Reset the counter to hpmevent mapping while starting cpus
• d454b32 wifi: iwlwifi: properly set WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK
• c09e078 fs: better handle deep ancestor chains in is_subdir()
• f13c96e drm/radeon: check bo_va->bo is non-NULL before using it
• 607731f drm/amd/display: Fix refresh rate range for some panel
• 6ecf239 drm/amd/display: Account for cursor prefetch BW in DML1 mode support
• 531e785 drm/amd/display: Add refresh rate range check
• a2cfe94 erofs: ensure m_llen is reset to 0 if metadata is invalid
• b803f30 bluetooth/l2cap: sync sock recv cb and release
• fb02ce1 Bluetooth: btnxpuart: Enable Power Save feature on startup
• d6cbce1 Bluetooth: hci_core: cancel all works upon hci_unregister_dev()
• 58911b7 tee: optee: ffa: Fix missing-field-initializers warning
• 945658c scsi: libsas: Fix exp-attached device scan after probe failure scanned in again after probe failed
• f23c3d1 powerpc/eeh: avoid possible crash when edev->pdev changes
• e512a59 powerpc/pseries: Whitelist dtl slub object for copying to userspace
• cf3f203 net: mac802154: Fix racy device stats updates by DEV_STATS_INC() and DEV_STATS_ADD()
• 30ac8d5 net: usb: qmi_wwan: add Telit FN912 compositions
• 16cb62c ASoC: amd: yc: Fix non-functional mic on ASUS M5602RA
• c305a70 ALSA: dmaengine_pcm: terminate dmaengine before synchronize
• 85b47cd ALSA: hda/relatek: Enable Mute LED on HP Laptop 15-gw0xxx
• 802a745 ALSA: PCM: Allow resume only for suspended streams
• 267c61c ibmvnic: Add tx check to prevent skb leak
• f88aeff btrfs: qgroup: fix quota root leak after quota disable failure
• 9f25bd7 platform/x86: lg-laptop: Use ACPI device handle when evaluating WMAB/WMBB
• 477112a platform/x86: lg-laptop: Change ACPI device id
• c98123c platform/x86: lg-laptop: Remove LGEX0815 hotkey handling
• cd33734 platform/x86: wireless-hotkey: Add support for LG Airplane Button
• 939f33b platform/mellanox: nvsw-sn2201: Add check for platform_device_add_resources
• 0a31b3f s390/sclp: Fix sclp_init() cleanup on failure
• 38608d0 octeontx2-pf: Fix coverity and klockwork issues in octeon PF driver
• e2ecddd gpio: pca953x: fix pca953x_irq_bus_sync_unlock race
• e4fca9a can: kvaser_usb: fix return value for hif_usb_send_regout
• 528466f Input: ads7846 - use spi_device_id table
• e7ba466 nvme: fix NVME_NS_DEAC may incorrectly identifying the disk as EXT_LBA.
• 21cb9c4 ASoC: rt722-sdca-sdw: add debounce time for type detection
• e18dfef ASoC: SOF: sof-audio: Skip unprepare for in-use widgets on error rollback
• 9d944d4 ASoC: ti: omap-hdmi: Fix too long driver name
• 02c6dd0 ASoC: ti: davinci-mcasp: Set min period size using FIFO config
• 3b0b50a ALSA: dmaengine: Synchronize dma channel after drop()
• e3394dc bytcr_rt5640 : inverse jack detect for Archos 101 cesium
• 1a13bf4 ASoC: topology: Do not assign fields that are already set
• ab5a620 ASoC: topology: Fix references to freed memory
• 423b0c3 Input: xpad - add support for ASUS ROG RAIKIRI PRO
• 57534d8 ASoC: rt722-sdca-sdw: add silence detection register as volatile
• 14f4453 Input: i8042 - add Ayaneo Kun to i8042 quirk table
• 66b1dbc Input: elantech - fix touchpad state on resume for Lenovo N24
• be7b66d mips: fix compat_sys_lseek syscall
• 94288fc ALSA: hda: cs35l56: Select SERIAL_MULTI_INSTANTIATE
• 86a6a39 drm/amdgpu: Indicate CU havest info to CP
• c436a23 selftests: openvswitch: Set value to nla flags.
• b235848 cpumask: limit FORCE_NR_CPUS to just the UP case
• 4bcb8e4 spi: Fix OCTAL mode support
• 9155f76 ALSA: hda/realtek: Add more codec ID to no shutup pins list
• 808e92e drm/vmwgfx: Fix missing HYPERVISOR_GUEST dependency
• 82c7a4c KVM: PPC: Book3S HV: Prevent UAF in kvm_spapr_tce_attach_iommu_group()
• 1d45fff ALSA: hda/realtek: Support Lenovo Thinkbook 16P Gen 5
• fe9644e wifi: cfg80211: wext: add extra SIOCSIWSCAN data check
• 4871dd2 ALSA: hda: cs35l56: Fix lifecycle of codec pointer
• 1096787 nvmet: always initialize cqe.result
• ae84383 nvme: avoid double free special payload
• b241d17 drm/mediatek: Call drm_atomic_helper_shutdown() at shutdown time
• 97f7134 drm: panel-orientation-quirks: Add quirk for Aya Neo KUN
• 208fde6 drm/exynos: dp: drop driver owner initialization
• 24be409 iomap: Fix iomap_adjust_read_range for plen calculation
• 53e0b76 mei: demote client disconnect warning on suspend to debug
• bd56b91 fs/file: fix the check in find_next_fd()
• 7c6ec08 cachefiles: make on-demand read killable
• c32ee78 cachefiles: Set object to close if ondemand_id < 0 in copen
• 36d845c cachefiles: add consistency check for copen/cread
• 3146a6a nfs: don't invalidate dentries on transient errors
• e3adf99 nfs: Avoid flushing many pages with NFS_FILE_SYNC
• 8cebc59 nfs: propagate readlink errors in nfs_symlink_filler
• b980906 NFSv4: Fix memory leak in nfs4_set_security_label
• c7734dd HID: Ignore battery for ELAN touchscreens 2F2C and 4116
• dd93f85 input: Add support for "Do Not Disturb"
• 39bd2e1 input: Add event code for accessibility key
• d9be8ee kconfig: remove wrong expr_trans_bool()
• 737161b kconfig: gconf: give a proper initial state to the Save button
• 08f0318 null_blk: fix validation of block size
• 69a978c arm64: armv8_deprecated: Fix warning in isndep cpuhp starting process
• 522c333 ila: block BH in ila_output()
• 1277071 net: ipv6: rpl_iptunnel: block BH in rpl_output() and rpl_input()
• 9d88edb Input: silead - Always support 10 fingers
• b0f79bd of/irq: Factor out parsing of interrupt-map parent phandle+args from of_irq_parse_raw()
• c9edeb9 selftests/futex: pass _GNU_SOURCE without a value to the compiler
• b182ded selftests/openat2: Fix build warnings on ppc64
• 91bf063 selftests: cachestat: Fix build warnings on ppc64
• a1834cf wifi: mac80211: fix UBSAN noise in ieee80211_prep_hw_scan()
• f5e6b9d wifi: iwlwifi: mvm: Fix scan abort handling with HW rfkill
• 4ae145f wifi: iwlwifi: mvm: properly set 6 GHz channel direct probe option
• ef22737 wifi: iwlwifi: mvm: handle BA session teardown in RF-kill
• 2d3381e wifi: iwlwifi: mvm: Handle BIGTK cipher in kek_kck cmd
• e25fae9 wifi: iwlwifi: mvm: remove stale STA link data during restart
• e34b6aa wifi: iwlwifi: mvm: d3: fix WoWLAN command version lookup
• c084a02 wifi: cfg80211: fix 6 GHz scan request building
• 92df142 wifi: mac80211: handle tasklet frames before stopping
• 8936ae4 wifi: mac80211: apply mcast rate only if interface is up
• dade678 wifi: mac80211: mesh: init nonpeer_pm to active by default in mesh sdata
• 2a6da27 tools/power/cpupower: Fix Pstate frequency reporting on AMD Family 1Ah CPUs
• a0156b8 ACPI: EC: Avoid returning AE_OK on errors in address space handler
• 5e49b9b ACPI: EC: Abort address space access upon error
• 113fa39 efi/libstub: zboot.lds: Discard .discard sections
• b76194f scsi: qedf: Set qed_slowpath_params to zero before use
• e949e39 scsi: qedf: Wait for stag work during unload
• 80c971d scsi: qedf: Don't process stag work during unload and recovery
• 74fac04 scsi: sr: Fix unintentional arithmetic wraparound
• c28ba74 scsi: core: alua: I/O errors for ALUA state transitions
• 5f5d079 filelock: Remove locks reliably when fcntl/close race is detected

Homepage
Download Linux 6.6.42-xanmod1 source from GitHub