A new XanMod Linux Kernel based on the latest Linux Kernel 5.12.7 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 5.12.7-xanmod1

• a46e11b Linux 5.12.7-xanmod1
• b7da6b3 Merge tag 'v5.12.7' into 5.12
• 55c17a6 Linux 5.12.7
• 58cca5e Bluetooth: SMP: Fail if remote and local public keys are identical
• 20a9b9f video: hgafb: correctly handle card detect failure during probe
• cad3ad9 nvmet: use new ana_log_size instead the old one
• 46f5e61 x86/boot/compressed/64: Check SEV encryption in the 32-bit boot-path
• 94d3714 rtc: pcf85063: fallback to parent of_node
• 51a0183 nvme-multipath: fix double initialization of ANA state
• 5f72937 x86/Xen: swap NX determination and GDT setup on BSP
• 03bb192 openrisc: mm/init.c: remove unused memblock_region variable in map_ram()
• 9d95057 drm/i915/gt: Disable HiZ Raw Stall Optimization on broken gen7
• 48c1afb tty: vt: always invoke vc->vc_sw->con_resize callback
• e8263ab vt: Fix character height handling with VT_RESIZEX
• 28cae8a vt_ioctl: Revert VT_RESIZEX parameter handling removal
• 727caaa vgacon: Record video mode changes with VT_RESIZEX
• a31ef3d video: hgafb: fix potential NULL pointer dereference
• c999df3 qlcnic: Add null check after calling netdev_alloc_skb
• 83247d7 leds: lp5523: check return value of lp5xx_read and jump to cleanup code
• 4c1c304 ics932s401: fix broken handling of errors when word reading fails
• 10d0a8d net: rtlwifi: properly check for alloc_workqueue() failure
• 017fb1e scsi: ufs: handle cleanup correctly on devm_reset_control_get error
• a04fe8f net: stmicro: handle clk_prepare() failure during init
• 85eed97 ethernet: sun: niu: fix missing checks of niu_pci_eeprom_read()
• cbc901a Revert "niu: fix missing checks of niu_pci_eeprom_read"
• d55309c Revert "qlcnic: Avoid potential NULL pointer dereference"
• bd9dd0f Revert "rtlwifi: fix a potential NULL pointer dereference"
• 4650e0b Revert "media: rcar_drif: fix a memory disclosure"
• 8713e15 cdrom: gdrom: initialize global variable at init time
• c893524 cdrom: gdrom: deallocate struct gdrom_unit fields in remove_gdrom
• b3f8eec Revert "gdrom: fix a memory leak bug"
• 1ba5c17 Revert "scsi: ufs: fix a missing check of devm_reset_control_get"
• 68f6eee Revert "ecryptfs: replace BUG_ON with error handling code"
• 36398a2 Revert "video: imsttfb: fix potential NULL pointer dereferences"
• f65fe9b Revert "hwmon: (lm80) fix a missing check of bus read in lm80 probe"
• a9a5e6f Revert "leds: lp5523: fix a missing check of return value of lp55xx_read"
• 58673ab Revert "net: stmicro: fix a missing check of clk_prepare"
• 6c8326b Revert "video: hgafb: fix potential NULL pointer dereference"
• 5c65f3a kcsan: Fix debugfs initcall return type
• ac4bf51 dm snapshot: fix crash with transient storage and zero chunk size
• 7c21d01 Revert "mm/gup: check page posion status for coredump."
• 5ce1a85 userfaultfd: hugetlbfs: fix new flag usage in error path
• 807fa14 ipc/mqueue, msg, sem: avoid relying on a stack reference past its expiry
• 6217e54 xen-pciback: reconfigure also from backend watch handler
• 83db6e8 xen-pciback: redo VF placement in the virtual topology
• e8e342d gpio: tegra186: Don't set parent IRQ affinity
• c191a2c mmc: meson-gx: also check SD_IO_RW_EXTENDED for scatterlist size alignment
• 6d8f00a mmc: meson-gx: make replace WARN_ONCE with dev_warn_once about scatterlist offset alignment
• b80010d mmc: sdhci-pci-gli: increase 1.8V regulator wait
• 77a843b powerpc/64s/syscall: Fix ptrace syscall info with scv syscalls
• a1c2e69 powerpc/64s/syscall: Use pt_regs.trap to distinguish syscall ABI difference between sc and scv syscalls
• 9396bad dma-buf: fix unintended pin/unpin warnings
• a50d792 drm/amdgpu: update sdma golden setting for Navi12
• 6c888ba drm/amdgpu: update gc golden setting for Navi12
• 9964c83 drm/amdgpu: disable 3DCGCG on picasso/raven1 to avoid compute hang
• f8baabd drm/amdgpu: Fix GPU TLB update error when PAGE_SIZE > AMDGPU_PAGE_SIZE
• ec1bd01 drm/radeon: use the dummy page for GART if needed
• 3ce618c drm/amd/display: Use the correct max downscaling value for DCN3.x family
• 5645f18 drm/i915/gem: Pin the L-shape quirked object as unshrinkable
• c76c4e3 x86/sev-es: Forward page-faults which happen during emulation
• e2f96ca x86/sev-es: Use __put_user()/__get_user() for data accesses
• efbfc33 x86/sev-es: Don't return NULL from sev_es_get_ghcb()
• da41666 x86/sev-es: Invalidate the GHCB after completing VMGEXIT
• 05e0d82 x86/sev-es: Move sev_es_put_ghcb() in prep for follow on patch
• 60bad83 x86/build: Fix location of '-plugin-opt=' flags
• a37e62e nvme-tcp: fix possible use-after-completion
• d5e9a9f Revert "serial: mvebu-uart: Fix to avoid a potential NULL pointer dereference"
• 19624d8 rapidio: handle create_workqueue() failure
• 68f7238 Revert "rapidio: fix a NULL pointer dereference when create_workqueue() fails"
• b83ad0a platform/x86: ideapad-laptop: fix method name typo
• 5f59240 uio_hv_generic: Fix another memory leak in error handling paths
• 53486c4 uio_hv_generic: Fix a memory leak in error handling paths
• 5e5ee72 uio/uio_pci_generic: fix return value changed in refactoring
• 2754fb4 ALSA: usb-audio: DJM-750: ensure format is set
• ae4248e ALSA: usb-audio: Configure Pioneer DJM-850 samplerate
• 8ede8bc ALSA: hda/realtek: Add fixup for HP Spectre x360 15-df0xxx
• 41a0d2d ALSA: hda/realtek: Add fixup for HP OMEN laptop
• e825729 ALSA: hda/realtek: Fix silent headphone output on ASUS UX430UA
• 97b4051 ALSA: hda/realtek: Add some CLOVE SSIDs of ALC293
• da1fbdf ALSA: hda/realtek: reset eapd coeff to default value for alc287
• ae29eb0 ALSA: firewire-lib: fix check for the size of isochronous packet payload
• 6bd227e Revert "ALSA: sb8: add a check for request_region"
• 55a32b5 ALSA: hda: fixup headset for ASUS GU502 laptop
• 3d913ed ALSA: bebob/oxfw: fix Kconfig entry for Mackie d.2 Pro
• a135a4b ALSA: usb-audio: Validate MS endpoint descriptors
• de73920 ALSA: firewire-lib: fix calculation for size of IR context payload
• 422fecb ALSA: dice: fix stream format at middle sampling rate for Alesis iO 26
• 3aa30f8 ALSA: line6: Fix racy initialization of LINE6 MIDI
• 276f0ff ALSA: firewire-lib: fix amdtp_packet tracepoints event for packet_index field
• 568b301 ALSA: intel8x0: Don't update period unless prepared
• 58a6d26 ALSA: dice: fix stream format for TC Electronic Konnekt Live at high sampling transfer frequency
• 2f0478a misc: eeprom: at24: check suspend status before disable regulator
• 88faee9 fs/mount_setattr: tighten permission checks
• f124e27 cifs: fix memory leak in smb2_copychunk_range
• 6d0924c btrfs: fix removed dentries still existing after log is synced
• 03781d5 btrfs: avoid RCU stalls while running delayed iputs
• 568b414 powerpc: Fix early setup to make early_ioremap() work
• 76aaa05 locking/mutex: clear MUTEX_FLAGS if wait_list is empty due to signal
• 9b83173 locking/lockdep: Correct calling tracepoints
• 173282b perf/x86: Avoid touching LBR_TOS MSR for Arch LBR
• 16e58aa nvmet: seset ns->file when open fails
• ddbf562 ptrace: make ptrace() fail if the tracee changed its pid unexpectedly
• a89e92a powerpc/pseries: Fix hcall tracing recursion in pv queued spinlocks
• f4550f0 drm/ttm: Do not add non-system domain BO into swap list
• 928ffb1 tools/testing/selftests/exec: fix link error
• a666bdf RDMA/uverbs: Fix a NULL vs IS_ERR() bug
• 9791fb4 RDMA/mlx5: Fix query DCT via DEVX
• 8d746ea platform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios
• bce24d9 platform/x86: intel_int0002_vgpio: Only call enable_irq_wake() when using s2idle
• 0ef94da platform/mellanox: mlxbf-tmfifo: Fix a memory barrier issue
• 0477af2 nvme-fc: clear q_live at beginning of association teardown
• 6f2d1af nvme-tcp: rerun io_work if req_list is not empty
• 551ba08 nvme-loop: fix memory leak in nvme_loop_create_ctrl()
• afb680e nvmet: fix memory leak in nvmet_alloc_ctrl()
• e062e2d RDMA/core: Don't access cm_id after its destruction
• abe31d2 RDMA/rxe: Return CQE error if invalid lkey was supplied
• aed15d4 RDMA/rxe: Split MEM into MR and MW
• 1af33ee RDMA/mlx5: Recover from fatal event in dual port mode
• 85d3b4e scsi: qla2xxx: Fix error return code in qla82xx_write_flash_dword()
• 11014ef scsi: qedf: Add pointer checks in qedf_update_link_speed()
• 1177bd8 scsi: ufs: core: Increase the usable queue depth
• 03344e8 RDMA/rxe: Clear all QP fields if creation failed
• beab753 platform/x86: ideapad-laptop: fix a NULL pointer dereference
• e6871b4 RDMA/core: Prevent divide-by-zero error triggered by the user
• 4d2efd5 RDMA/siw: Release xarray entry
• 8abd859 RDMA/siw: Properly check send and receive CQ pointers
• b49f5af habanalabs/gaudi: Fix a potential use after free in gaudi_memset_device_memory
• bf2c33a tee: amdtee: unload TA only when its refcount becomes 0
• 27de83a openrisc: Fix a memory leak
• 29cd1f0 firmware: arm_scpi: Prevent the ternary sign expansion bug

Homepage
Download Linux 5.12.7-xanmod1 source from GitHub