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A new XanMod Linux Kernel based on Linux Kernel 6.6.8 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 6.6.8-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-xanmodlinux-xanmod-edgelinux-xanmod-ltslinux-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 6.6.8-xanmod1

  • 005045c Linux 6.6.8-xanmod1
  • 8813c2d Merge tag 'v6.6.8' into 6.6
  • 4c9646a Linux 6.6.8
  • 885faf3 RDMA/mlx5: Change the key being sent for MPV device affiliation
  • 06f61af x86/speculation, objtool: Use absolute relocations for annotations
  • 3432f96 ring-buffer: Have rb_time_cmpxchg() set the msb counter too
  • b3778a2 ring-buffer: Do not try to put back write_stamp
  • bc17bc9 ring-buffer: Fix a race in rb_time_cmpxchg() for 32 bit archs
  • ae76d9b ring-buffer: Fix writing to the buffer with max_data_size
  • 307ed13 ring-buffer: Have saved event hold the entire event
  • 5e58483 ring-buffer: Do not update before stamp when switching sub-buffers
  • 5062b8c tracing: Update snapshot buffer on resize if it is allocated
  • b02bf0d ring-buffer: Fix memory leak of free page
  • e72ed49 smb: client: fix OOB in smb2_query_reparse_point()
  • ef748d4 smb: client: fix NULL deref in asn1_ber_decoder()
  • 17a0f64 smb: client: fix potential OOBs in smb2_parse_contexts()
  • 5347333 smb: client: fix OOB in receive_encrypted_standard()
  • 4029b02 drm/i915: Fix remapped stride with CCS on ADL+
  • a9d951b drm/i915: Fix intel_atomic_setup_scalers() plane_state handling
  • b6295a1 drm/i915: Fix ADL+ tiled plane stride when the POT stride is smaller than the original
  • a8f922a drm/amd/display: Disable PSR-SU on Parade 0803 TCON again
  • c7f6e83 drm/amd/display: Restore guard against default backlight value < 1 nit
  • a511e85 drm/edid: also call add modes in EDID connector update fallback
  • d506706 drm/amdgpu: fix tear down order in amdgpu_vm_pt_free
  • d3cf024 btrfs: don't clear qgroup reserved bit in release_folio
  • 1823491 btrfs: fix qgroup_free_reserved_data int overflow
  • 14570df btrfs: free qgroup reserve when ORDERED_IOERR is set
  • 37b561d kexec: drop dependency on ARCH_SUPPORTS_KEXEC from CRASH_DUMP
  • 7a4ae7a mm/shmem: fix race in shmem_undo_range w/THP
  • a107d6a mm/mglru: reclaim offlined memcgs harder
  • 6b131c2 mm/mglru: respect min_ttl_ms with memcgs
  • c5f67b7 mm/mglru: try to stop at high watermarks
  • b2ce691 mm/mglru: fix underprotected page cache
  • ed50e07 dmaengine: fsl-edma: fix DMA channel leak in eDMAv4
  • 9127515 dmaengine: stm32-dma: avoid bitfield overflow assertion
  • 03e63e4 drm/mediatek: Fix access violation in mtk_drm_crtc_dma_dev_get
  • 3aae4ef drm/amdgpu/sdma5.2: add begin/end_use ring callbacks
  • 28b3642 team: Fix use-after-free when an option instance allocation fails
  • 2c8a21a arm64: mm: Always make sw-dirty PTEs hw-dirty in pte_modify
  • d228e98 Revert "selftests: error out if kernel header files are not yet built"
  • 4f18d18 ext4: prevent the normalized size from exceeding EXT_MAX_BLOCKS
  • 40abc38 soundwire: stream: fix NULL pointer dereference for multi_link
  • c1d2d08 cxl/hdm: Fix dpa translation locking
  • 6544617 btrfs: do not allow non subvolume root targets for snapshot
  • 545d55a perf: Fix perf_event_validate_size() lockdep splat
  • 5ce0fb8 HID: hid-asus: add const to read-only outgoing usb buffer
  • 610610d arm64: add dependency between vmlinuz.efi and Image
  • df32e88 smb: client: set correct file type from NFS reparse points
  • 4d07e5d smb: client: introduce ->parse_reparse_point()
  • d5c959a smb: client: implement ->query_reparse_point() for SMB1
  • e25ee0c net: usb: qmi_wwan: claim interface 4 for ZTE MF290
  • 6abb8c2 eventfs: Do not allow NULL parent to eventfs_start_creating()
  • a739ceb asm-generic: qspinlock: fix queued_spin_value_unlocked() implementation
  • 9777499 scripts/checkstack.pl: match all stack sizes for s390
  • 1f75542 nfc: virtual_ncidev: Add variable to check if ndev is running
  • c9d25e4 HID: multitouch: Add quirk for HONOR GLO-GXXX touchpad
  • 9fc2827 HID: hid-asus: reset the backlight brightness level on resume
  • b3ebe19 nbd: pass nbd_sock to nbd_read_reply() instead of index
  • af48c40 HID: add ALWAYS_POLL quirk for Apple kb
  • c38f7b0 HID: glorious: fix Glorious Model I HID report
  • 6b3507b HID: apple: add Jamesdonkey and A3R to non-apple keyboards list
  • d4b50ac HID: mcp2221: Allow IO to start during probe
  • 2afe67c HID: mcp2221: Set driver data before I2C adapter add
  • 086f91f platform/x86: intel_telemetry: Fix kernel doc descriptions
  • f61771a LoongArch: Implement constant timer shutdown interface
  • c28fec4 LoongArch: Mark {dmw,tlb}_virt_to_page() exports as non-GPL
  • 71d8348 LoongArch: Silence the boot warning about 'nokaslr'
  • ab3f300 LoongArch: Record pc instead of offset in la_abs relocation
  • 0337260 LoongArch: Add dependency between vmlinuz.efi and vmlinux.efi
  • 0ade0b8 selftests/bpf: fix bpf_loop_bench for new callback verification scheme
  • 9514925 nvme: catch errors from nvme_configure_metadata()
  • 89fc902 nvme-auth: set explanation code for failure2 msgs
  • c34fa2d nbd: fix null-ptr-dereference while accessing 'nbd->config'
  • 8c15173 nbd: factor out a helper to get nbd_config without holding 'config_lock'
  • 4087936 nbd: fold nbd config initialization into nbd_alloc_config()
  • 4a4bba9 bcache: avoid NULL checking to c->root in run_cache_set()
  • 2869189 bcache: add code comments for bch_btree_node_get() and __bch_btree_node_alloc()
  • 6653417 bcache: remove redundant assignment to variable cur_idx
  • 09bdafb bcache: avoid oversize memory allocation by small stripe_size
  • 0730b1e blk-cgroup: bypass blkcg_deactivate_policy after destroying
  • 5aba47c blk-throttle: fix lockdep warning of "cgroup_mutex or RCU read lock required!"
  • 462f111 rxrpc: Fix some minor issues with bundle tracing
  • c40c0b8 stmmac: dwmac-loongson: Add architecture dependency
  • 2ebf775 usb: aqc111: check packet for fixup for true limit
  • 54d8c1d x86/hyperv: Fix the detection of E820_TYPE_PRAM in a Gen2 VM
  • ca3ebcf selftests/mm: cow: print ksft header before printing anything else
  • cd378c3 drm/i915: Use internal class when counting engine resets
  • 54d0831 drm/i915/selftests: Fix engine reset count storage for multi-tile
  • 83a42d7 accel/ivpu/37xx: Fix interrupt_clear_with_0 WA initialization
  • 0afcc62 accel/ivpu: Print information about used workarounds
  • 7d6e9cb drm/mediatek: Add spinlock for setting vblank event in atomic_begin
  • 8964524 drm/mediatek: fix kernel oops if no crtc is found
  • 98bd0b4 PCI: vmd: Fix potential deadlock when enabling ASPM
  • f94c443 ksmbd: fix wrong name of SMB2_CREATE_ALLOCATION_SIZE
  • 1e1f461 PCI/ASPM: Add pci_enable_link_state_locked()
  • 4fb5358 PCI: loongson: Limit MRRS to 256
  • 5cc8d88 Revert "PCI: acpiphp: Reassign resources on bridge if necessary"
  • 56e2212 ALSA: hda/tas2781: reset the amp before component_add
  • d94fad0 ALSA: hda/tas2781: call cleanup functions only once
  • 795e91c ALSA: hda/tas2781: handle missing EFI calibration data
  • 7fc8bfd ALSA: hda/tas2781: leave hda_component in usable state
  • ffd1fe1 ALSA: hda/realtek: Apply mute LED quirk for HP15-db
  • 7ec57c1 ALSA: hda/hdmi: add force-connect quirks for ASUSTeK Z170 variants
  • c52ebaf ALSA: hda/hdmi: add force-connect quirk for NUC5CPYB
  • 9566ef5 io_uring/cmd: fix breakage in SOCKET_URING_OP_SIOC* implementation
  • ce5a6df fuse: dax: set fc->dax to NULL in fuse_dax_conn_free()
  • fbcddc7 fuse: disable FOPEN_PARALLEL_DIRECT_WRITES with FUSE_DIRECT_IO_ALLOW_MMAP
  • 2939dd3 fuse: share lookup state between submount and its parent
  • 9f36c1c fuse: Rename DIRECT_IO_RELAX to DIRECT_IO_ALLOW_MMAP
  • 6e5782b HID: Add quirk for Labtec/ODDOR/aikeec handbrake
  • fea8562 HID: i2c-hid: Add IDEA5002 to i2c_hid_acpi_blacklist[]
  • 207f135 cred: get rid of CONFIG_DEBUG_CREDENTIALS
  • f6a7ce5 cred: switch to using atomic_long_t
  • 3b5daf2 net: atlantic: fix double free in ring reinit logic
  • e15ded3 appletalk: Fix Use-After-Free in atalk_ioctl
  • 58c5566 net: stmmac: Handle disabled MDIO busses from devicetree
  • ad531df net: stmmac: dwmac-qcom-ethqos: Fix drops in 10M SGMII RX
  • da8732c dpaa2-switch: do not ask for MDB, VLAN and FDB replay
  • 77e566c dpaa2-switch: fix size of the dma_unmap
  • fa63477 vsock/virtio: Fix unsigned integer wrap around in virtio_transport_has_space()
  • f18ac4b sign-file: Fix incorrect return values check
  • e0069c2 stmmac: dwmac-loongson: Make sure MDIO is initialized before use
  • 2cc8ffc net: ena: Fix XDP redirection error
  • 0116e02 net: ena: Fix DMA syncing in XDP path when SWIOTLB is on
  • 0cb2021 net: ena: Fix xdp drops handling due to multibuf packets
  • c22877f net: ena: Destroy correct number of xdp queues upon failure
  • d6bef00 net: Remove acked SYN flag from packet in the transmit queue correctly
  • 7106a15 qed: Fix a potential use-after-free in qed_cxt_tables_alloc
  • 54f59a2 iavf: Fix iavf_shutdown to call iavf_remove instead iavf_close
  • e768a04 iavf: Handle ntuple on/off based on new state machines for flow director
  • 3beb9d6 iavf: Introduce new state machines for flow director
  • 63caa51 net/rose: Fix Use-After-Free in rose_ioctl
  • 531fd46 atm: Fix Use-After-Free in do_vcc_ioctl
  • f115b31 octeontx2-af: Fix pause frame configuration
  • 6b5de31 octeontx2-af: Update RSS algorithm index
  • 5295d2a octeontx2-pf: Fix promisc mcam entry action
  • 6047060 octeon_ep: explicitly test for firmware ready value
  • 15f300e net/sched: act_ct: Take per-cb reference to tcf_ct_flow_table
  • dd75adf octeontx2-af: fix a use-after-free in rvu_nix_register_reporters
  • 4317fba net: fec: correct queue selection
  • 8210250 atm: solos-pci: Fix potential deadlock on &tx_queue_lock
  • 4faf39c atm: solos-pci: Fix potential deadlock on &cli_queue_lock
  • 9542105 bnxt_en: Fix HWTSTAMP_FILTER_ALL packet timestamp logic
  • 909f5a4 bnxt_en: Fix wrong return value check in bnxt_close_nic()
  • d8ea6b0 bnxt_en: Fix skb recycling logic in bnxt_deliver_skb()
  • bf9ceb1 bnxt_en: Clear resource reservation during resume
  • f7dac96 qca_spi: Fix reset behavior
  • 02296b1 qca_debug: Fix ethtool -G iface tx behavior
  • 21b9dc8 qca_debug: Prevent crash on TX ring changes
  • 92d813f net: ipv6: support reporting otherwise unknown prefix flags in RTM_NEWPREFIX
  • 6cb39c7 net/mlx5: Fix a NULL vs IS_ERR() check
  • ef3b2d5 net/mlx5e: Check netdev pointer before checking its net ns
  • a483977 net/mlx5: Nack sync reset request when HotPlug is enabled
  • b766f8b net/mlx5e: TC, Don't offload post action rule if not supported
  • 8ce3d96 net/mlx5e: Fix possible deadlock on mlx5e_tx_timeout_work
  • 7e46db5 net/mlx5e: Disable IPsec offload support if not FW steering
  • fdd350f RDMA/mlx5: Send events from IB driver about device affiliation state
  • 4a95f41 net/mlx5e: Check the number of elements before walk TC rhashtable
  • 594a306 net/mlx5e: Reduce eswitch mode_lock protection context
  • 1a0d0e9 net/mlx5e: Tidy up IPsec NAT-T SA discovery
  • 20af7af net/mlx5e: Unify esw and normal IPsec status table creation/destruction
  • 80299a1 net/mlx5e: Ensure that IPsec sequence packet number starts from 1
  • 17e600e net/mlx5e: Honor user choice of IPsec replay window size
  • b89b7c7 HID: lenovo: Restrict detection of patched firmware only to USB cptkbd
  • 8715fe2 afs: Fix refcount underflow from error handling race
  • 800f84d efi/x86: Avoid physical KASLR on older Dell systems
  • 809d50d ksmbd: fix memory leak in smb2_lock()
  • 73dddf9 ext4: fix warning in ext4_dio_write_end_io()
  • da94fb0 r8152: add vendor/device ID pair for ASUS USB-C2500

Xanmod

Homepage
Download Linux 6.6.8-xanmod1 source from GitHub