A new XanMod Linux Kernel based on Linux Kernel 6.8.6 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 6.8.6-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

• b557e91 Linux 6.8.6-xanmod1
• c92d295 XANMOD: config: Change to full preemption by default
• cb35f8b mm/vmscan: vm.workingset_protection: Update to linux6.9-le9uo-1.6
• ee4bdd6 Merge tag 'v6.8.6' into 6.8
• 1f7d392 Linux 6.8.6
• aa665c3 Revert "drm/amd/amdgpu: Fix potential ioremap() memory leaks in amdgpu_device_init()"
• dd0ad48 x86/vdso: Fix rethunk patching for vdso-image-x32.o too
• f4bcada VMCI: Fix possible memcpy() run-time warning in vmci_datagram_invoke_guest_handler()
• 07a5449 net: mpls: error out if inner headers are not set
• 4a9abbc Bluetooth: btintel: Fixe build regression
• 4d5ee18 nouveau: fix devinit paths to only handle display on GSP.
• 96e08fb platform/x86: intel-vbtn: Update tablet mode switch at end of probe
• 3fe68ad platform/x86/intel/hid: Don't wake on 5-button releases
• 6be74b1 randomize_kstack: Improve entropy diffusion
• 51c84a8 media: mediatek: vcodec: adding lock to protect encoder context list
• 23aaf82 media: mediatek: vcodec: adding lock to protect decoder context list
• 521ce0e media: mediatek: vcodec: Fix oops when HEVC init fails
• 2d38d16 gcc-plugins/stackleak: Avoid .head.text section
• 4f8154f drm/amdgpu: Init zone device and drm client after mode-1 reset on reload
• 8cae460 ALSA: hda/realtek: Add quirks for some Clevo laptops
• 1b107d6 fbmon: prevent division by zero in fb_videomode_from_videomode()
• de009f4 drivers/nvme: Add quirks for device 126f:2262
• b741f93 modpost: fix null pointer dereference
• cb1cd17 io_uring: clear opcode specific data for an early failure
• c818cb6 fbdev: viafb: fix typo in hw_bitblt_1 and hw_bitblt_2
• 6590199 x86/xen: attempt to inflate the memory balloon on PVH
• ac372b7 ASoC: soc-core.c: Skip dummy codec when adding platforms
• a2a46bb thermal/of: Assume polling-delay(-passive) 0 when absent
• 093924a ASoC: amd: yc: Fix non-functional mic on ASUS M7600RE
• e149466 usb: sl811-hcd: only defined function checkdone if QUIRK2 is defined
• 1bbeb31 usb: typec: tcpci: add generic tcpci fallback compatible
• 389c06c thunderbolt: Keep the domain powered when USB4 port is in redrive mode
• 9440179 serial: 8250_of: Drop quirk fot NPCM from 8250_port
• 0defcaa usb: typec: ucsi: Limit read size on v1.2
• 4664aa8 usb: gadget: uvc: mark incomplete frames with UVC_STREAM_ERR
• f3ad2c9 usb: gadget: uvc: refactor the check for a valid buffer in the pump worker
• 598a5ff thunderbolt: Calculate DisplayPort tunnel bandwidth after DPRX capabilities read
• aa4d55e usb: typec: ucsi: Add qcm6490-pmic-glink as needing PDOS quirk
• 10b1202 kernfs: RCU protect kernfs_nodes and avoid kernfs_idr_lock in kernfs_find_and_get_node_by_id()
• a2ce11b bus: mhi: host: Add MHI_PM_SYS_ERR_FAIL state
• 86a5318 tools: iio: replace seekdir() in iio_generic_buffer
• 67ef2f3 ring-buffer: use READ_ONCE() to read cpu_buffer->commit_page in concurrent environment
• 90371bb Input: xpad - add support for Snakebyte GAMEPADs
• 580815f ktest: force $buildonly = 1 for 'make_warnings_file' test type
• 17e7702 ALSA: hda/realtek: Add quirk for Lenovo Yoga 9 14IMH9
• 20e9bdf perf/x86/amd/lbr: Discard erroneous branch entries
• 53d57bc platform/x86: touchscreen_dmi: Add an extra entry for a variant of the Chuwi Vi8 tablet
• 71dce80 platform/x86: acer-wmi: Add predator_v4 module parameter
• 82e4ead platform/x86: acer-wmi: Add support for Acer PH16-71
• c217305 Input: allocate keycode for Display refresh rate toggle
• 751cabd Input: imagis - use FIELD_GET where applicable
• c20331b RDMA/cm: add timeout to cm_destroy_id wait
• 98ddf26 block: prevent division by zero in blk_rq_stat_sum()
• 479b868 drivers/perf: hisi: Enable HiSilicon Erratum 162700402 quirk for HIP09
• 8616bc3 input/touchscreen: imagis: Correct the maximum touch area value
• d994f7d crypto: iaa - Fix async_disable descriptor leak
• 0fc5116 libperf evlist: Avoid out-of-bounds access
• 80b4355 Revert "ACPI: PM: Block ASUS B1400CEAE from suspend to idle by default"
• fb2b8b5 PCI: Disable D3cold on Asus B1400 PCI-NVMe bridge
• d338234 SUNRPC: increase size of rpc_wait_queue.qlen from unsigned short to unsigned int
• 956d840 drm: Check polling initialized before enabling in drm_helper_probe_single_connector_modes
• 1845179 drm: Check output polling initialized before disabling
• 58edb8a drm/amd/amdgpu: Fix potential ioremap() memory leaks in amdgpu_device_init()
• 314e66e HID: input: avoid polling stylus battery on Chromebook Pompom
• c9f1010 i2c: designware: Fix RX FIFO depth define on Wangxun 10Gb NIC
• 88d6a73 accel/habanalabs: increase HL_MAX_STR to 64 bytes to avoid warnings
• fc04b1b drm/amd/display: Fix nanosec stat overflow
• 27ccb0d ext4: forbid commit inconsistent quota data when errors=remount-ro
• 59813a6 ext4: add a hint for block bitmap corrupt state in mb_groups
• 0b55c67 ASoC: Intel: avs: Populate board selection with new I2S entries
• 9146ef7 x86/vdso: Fix rethunk patching for vdso-image-{32,64}.o
• e125336 drm/panel: simple: Add BOE BP082WX1-100 8.2" panel
• 3c4d179 ALSA: firewire-lib: handle quirk to calculate payload quadlets as data block counter
• 3b028b9 media: sta2x11: fix irq handler cast
• b972e8a Julia Lawall reported this null pointer dereference, this should fix it.
• d3361f0 rcu-tasks: Repair RCU Tasks Trace quiescence check
• 927d1f4 rcu/nocb: Fix WARN_ON_ONCE() in the rcu_nocb_bypass_lock()
• bfcc9af ASoC: Intel: common: DMI remap for rebranded Intel NUC M15 (LAPRC710) laptops
• 28cacd3 ASoC: Intel: sof_rt5682: dmi quirk cleanup for mtl boards
• 971e7ba isofs: handle CDs with bad root inode but good Joliet root directory
• 2aac387 drm/amd/display: Disable idle reallow as part of command/gpint execution
• 3320126 scsi: lpfc: Fix possible memory leak in lpfc_rcv_padisc()
• a692242 sysv: don't call sb_bread() with pointers_lock held
• b02945e pinctrl: renesas: checker: Limit cfg reg enum checks to provided IDs
• bd72c52 drm/amd/display: increased min_dcfclk_mhz and min_fclk_mhz
• d15def2 scsi: ufs: qcom: Avoid re-init quirk when gears match
• b788c74 drm/ttm: return ENOSPC from ttm_bo_mem_space v3
• 1253b07 ASoC: SOF: amd: Optimize quirk for Valve Galileo
• 1116699 drm: panel-orientation-quirks: Add quirk for GPD Win Mini
• f2e638b Input: synaptics-rmi4 - fail probing if memory allocation for "phys" fails
• 395ca10 drm/amdgpu: Skip do PCI error slot reset during RAS recovery
• 1d6a47d drm/ci: uprev mesa version: fix kdl commit fetch
• 5343f72 drm/vc4: don't check if plane->state->fb == state->fb
• f37515d Bluetooth: Add new quirk for broken read key length on ATS2851
• 591a048 Bluetooth: btmtk: Add MODULE_FIRMWARE() for MT7922
• 22d3053 Bluetooth: btintel: Fix null ptr deref in btintel_read_version
• e8c1129 netdev: let netlink core handle -EMSGSIZE errors
• 6e92042 net/smc: reduce rtnl pressure in smc_pnet_create_pnetids_list()
• d3da0d4 ice: use relative VSI index for VFs instead of PF VSI number
• 0393861 btrfs: send: handle path ref underflow in header iterate_inode_ref()
• 484cb95 btrfs: export: handle invalid inode or root reference in btrfs_get_parent()
• 1f9212c btrfs: handle chunk tree lookup error in btrfs_relocate_sys_chunks()
• 16da1e1 wifi: cfg80211: check A-MSDU format more carefully
• 78c30f6 wifi: iwlwifi: Add missing MODULE_FIRMWARE() for *.pnvm
• c0d597e overflow: Allow non-type arg to type_max() and type_min()
• 804f5b3 cpufreq: Don't unregister cpufreq cooling on CPU hotplug
• 916f095 iommu/arm-smmu-v3: Hold arm_smmu_asid_lock during all of attach_dev
• ae5876b wifi: ath11k: decrease MHI channel buffer length to 8KB
• b57326c dma-direct: Leak pages on dma_set_decrypted() failure
• 0f53675 net: pcs: xpcs: Return EINVAL in the internal methods
• 4b0df9b tools/power x86_energy_perf_policy: Fix file leak in get_pkg_num()
• 6f9f2e4 pstore/zone: Add a null pointer check to the psz_kmsg_read
• 4af6a20 ACPI: x86: Add DELL0501 handling to acpi_quirk_skip_serdev_enumeration()
• 6998229 ACPI: x86: Move acpi_quirk_skip_serdev_enumeration() out of CONFIG_X86_ANDROID_TABLETS
• 7a749b8 wifi: mt76: mt7996: add locking for accessing mapped registers
• 6f4d5f9 wifi: mt76: mt7996: disable AMSDU for non-data frames
• 9864f58 wifi: mt76: mt7915: add locking for accessing mapped registers
• 2505a75 wifi: brcmfmac: Add DMI nvram filename quirk for ACEPC W5 Pro
• 3fe40a6 firmware: tegra: bpmp: Return directly after a failed kzalloc() in get_filename()
• fff05b2 net: skbuff: add overflow debug check to pull/push helpers
• 69a9604 ionic: set adminq irq affinity
• e4ede18 ACPI: resource: Add IRQ override quirk for ASUS ExpertBook B2502FBA
• b13c0d8 pmdomain: imx8mp-blk-ctrl: imx8mp_blk: Add fdcc clock to hdmimix domain
• 04f2351 pmdomain: ti: Add a null pointer check to the omap_prm_domain_init
• 54f1341 arm64: dts: qcom: qcs6490-rb3gen2: Declare GCC clocks protected
• 0981ac2 net: add netdev_lockdep_set_classes() to virtual drivers
• 60b3f5f arm64: dts: rockchip: fix rk3399 hdmi ports node
• dde7c81 arm64: dts: rockchip: fix rk3328 hdmi ports node
• e5adbf6 ARM: dts: rockchip: fix rk322x hdmi ports node
• 2bf0625 ARM: dts: rockchip: fix rk3288 hdmi ports node
• 35b5f8e cpuidle: Avoid potential overflow in integer multiplication
• 6b8cd2b wifi: iwlwifi: pcie: Add new PCI device id and CNVI
• a63a05d dump_stack: Do not get cpu_sync for panic CPU
• 365224c panic: Flush kernel log buffer at the end
• 22a1194 printk: For @suppress_panic_printk check for other CPU in panic
• 3da0a5d arm64: dts: qcom: qrb2210-rb1: disable cluster power domains
• 8d390b8 net: dsa: qca8k: put MDIO controller OF node if unavailable
• 649e24f arm64: dts: qcom: qcm6490-idp: Add definition for three LEDs
• 87ce89b wifi: iwlwifi: pcie: Add the PCI device id for new hardware
• 491a1eb VMCI: Fix memcpy() run-time warning in dg_dispatch_as_host()
• 3fb9722 wifi: rtw89: pci: enlarge RX DMA buffer to consider size of RX descriptor
• c7ac2f9 wifi: rtw89: pci: validate RX tag for RXQ and RPQ
• 3419ee3 net: phy: phy_device: Prevent nullptr exceptions on ISR
• cce9340 net: stmmac: dwmac-starfive: Add support for JH7100 SoC
• 790ad96 bnx2x: Fix firmware version string character counts
• 4f11c74 wifi: rtw89: fix null pointer access when abort scan
• 30c09fb wifi: ath9k: fix LNA selection in ath_ant_try_scan()
• 0c33d11 amdkfd: use calloc instead of kzalloc to avoid integer overflow

Homepage
Download Linux 6.8.6-xanmod1 source from GitHub