A new XanMod Linux kernel based on Linux kernel 6.6.50 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 6.6.50-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

• 4a315c8 Linux 6.6.50-xanmod1
• 7825fd9 Merge tag 'v6.6.50' into 6.6
• ad07a29 Linux 6.6.50
• 9d24eaa i2c: Use IS_REACHABLE() for substituting empty ACPI functions
• f5e9a22 virtio_net: Fix napi_skb_cache_put warning
• d8915d2 media: uvcvideo: Enforce alignment of frame and interval
• e3a95f2 drm/amd/display: Skip wbscl_set_scaler_filter if filter is null
• e50bec6 drm/amd/display: Check BIOS images before it is used
• 67cf14c drm/amd/display: use preferred link settings for dp signal only
• 800a5ab drm/amd/display: Correct the defined value for AMDGPU_DMUB_NOTIFICATION_MAX
• 154a50b drm/amd/display: added NULL check at start of dc_validate_stream
• da696cb drm/amd/display: Don't use fsleep for PSR exit waits on dmub replay
• 381113e drm/amdgpu: add lock in kfd_process_dequeue_from_device
• ddfe95f drm/amdgpu: add lock in amdgpu_gart_invalidate_tlb
• 494b42f drm/amdgpu: add skip_hw_access checks for sriov
• 2e91ea2 block: remove the blk_flush_integrity call in blk_integrity_unregister
• 72f022e driver: iio: add missing checks on iio_info's callback access
• 6290d3f f2fs: fix to do sanity check on blocks for inline_data inode
• 862b19f wifi: cfg80211: make hash table duplicates more survivable
• 63ca5b4 hwmon: (k10temp) Check return value of amd_smn_read()
• 20bf292 dmaengine: altera-msgdma: properly free descriptor in msgdma_free_descriptor
• cd3851e dmaengine: altera-msgdma: use irq variant of spin_lock/unlock while invoking callbacks
• 9d56712 drm/bridge: tc358767: Check if fully initialized before signalling HPD event via IRQ
• d9612c6 gfs2: Revert "Add quota_change type"
• d93a2f8 crypto: stm32/cryp - call finalize with bh disabled
• 68957f5 drm/meson: plane: Add error handling
• ae9018e net/mlx5e: SHAMPO, Fix incorrect page release
• 0b722b8 platform/chrome: cros_ec_lpc: MEC access can use an AML mutex
• 4be9fd1 smack: tcp: ipv4, fix incorrect labeling
• 4c11451 regmap: spi: Fix potential off-by-one when calculating reserved size
• 54a11ce drm/amdgu: fix Unintentional integer overflow for mall size
• 69f397e net: remove NULL-pointer net parameter in ip_metrics_convert
• fc1b1e1 fsnotify: clear PARENT_WATCHED flags lazily
• 3b9f2d9 usb: typec: ucsi: Fix null pointer dereference in trace
• 73ec94a usbip: Don't submit special requests twice
• f576acf media: v4l2-cci: Always assign *val
• 37d9fd3 rcu/nocb: Remove buggy bypass lock contention mitigation
• f9a9cf9 pwm: xilinx: Fix u32 overflow issue in 32-bit width PWM mode.
• 04e787f ionic: fix potential irq name truncation
• fd867e7 RDMA/efa: Properly handle unexpected AQ completions
• 220725d soc: qcom: smem: Add qcom_smem_bust_hwspin_lock_by_host()
• a6978d1 hwspinlock: Introduce hwspin_lock_bust()
• e51077a wifi: mac80211: check ieee80211_bss_info_change_notify() against MLD
• 7cdb515 PCI: al: Check IORESOURCE_BUS existence during probe
• ea37096 cpufreq: scmi: Avoid overflow of target_freq in fast switch
• 0bd1be7 wifi: iwlwifi: remove fw_running op
• 0798e43 drm/amdgpu: update type of buf size to u32 for eeprom functions
• cdc65b5 drm/kfd: Correct pinned buffer handling at kfd restore and validate process
• 1107129 wifi: rtw89: ser: avoid multiple deinit on same CAM
• 7e8d106 drm/amd/pm: check negtive return for table entries
• 7d26577 drm/amdgpu: the warning dereferencing obj for nbio_v7_4
• 025798f drm/amd/pm: check specific index for smu13
• d0230b3 drm/amd/pm: check specific index for aldebaran
• 4ab720b drm/amdgpu: fix the waring dereferencing hive
• 0aad97b drm/amdgpu: fix dereference after null check
• d116bb9 drm/amdgpu: Fix the warning division or modulo by zero
• 5835078 drm/amdgpu/pm: Check input value for CUSTOM profile mode setting on legacy SOCs
• eba7c58 wifi: ath11k: initialize 'ret' in ath11k_qmi_load_file_target_mem()
• 17d89c7 wifi: ath12k: initialize 'ret' in ath12k_qmi_load_file_target_mem()
• 59f742e apparmor: fix possible NULL pointer dereference
• f163ba8 drm/amdkfd: Reconcile the definition and use of oem_id in struct kfd_topology_device
• d0a43bf drm/amdgpu: fix mc_data out-of-bounds read warning
• f2b7a9f drm/amdgpu: fix ucode out-of-bounds read warning
• f926797 drm/amdgpu: Fix out-of-bounds read of df_v1_7_channel_number
• e6ea3b8 drm/amdkfd: Check debug trap enable before write dbg_ev_file
• a60d1f7 drm/amdgpu: Fix out-of-bounds write warning
• f71ef2b drm/amdgpu: Fix the uninitialized variable warning
• 3ad4417 drm/amdgpu/pm: Fix uninitialized variable agc_btc_response
• 3e04fa9 drm/amdgpu/pm: Fix uninitialized variable warning for smu10
• 97667de drm/amd/pm: fix uninitialized variable warnings for vangogh_ppt
• 4dfec5f drm/amd/amdgpu: Check tbo resource pointer
• 4003bac drm/amd/display: Fix index may exceed array range within fpu_update_bw_bounding_box
• 8406158 drm/amd/display: Skip inactive planes within ModeSupportAndSystemConfiguration
• 3dc6bb5 drm/amd/display: Ensure index calculation will not overflow
• 94b0689 drm/amd/display: Fix Coverity INTEGER_OVERFLOW within decide_fallback_link_setting_max_bw_policy
• af43ed7 drm/amd/display: Spinlock before reading event
• 313d3dd drm/amd/display: Fix Coverity INTEGER_OVERFLOW within dal_gpio_service_create
• 13faa9d drm/amd/display: Fix Coverity INTERGER_OVERFLOW within construct_integrated_info
• cb63090 drm/amd/display: Check msg_id before processing transcation
• 21f9cb4 drm/amd/display: Check num_valid_sets before accessing reader_wm_sets[]
• 8b5ccf3 drm/amd/display: Add array index check for hdcp ddc access
• 48e0b68 drm/amd/display: Check index for aux_rd_interval before using
• 94cb777 drm/amd/display: Stop amdgpu_dm initialize when stream nums greater than 6
• 08e7755 drm/amd/display: Check gpio_id before used as array index
• 30e60db drm/amdgpu: avoid reading vf2pf info size from FB
• 1a2c893 drm/amd/pm: fix uninitialized variable warnings for vega10_hwmgr
• f1e261c drm/amd/pm: fix the Out-of-bounds read warning
• 4711b13 drm/amd/pm: Fix negative array index read
• 59dd0d4 drm/amd/pm: fix warning using uninitialized value of max_vid_step
• 1dbce92 drm/amd/pm: fix uninitialized variable warning for smu8_hwmgr
• fc0cb02 drm/amd/pm: fix uninitialized variable warning
• a2f2bea drm/amdgpu/pm: Check the return value of smum_send_msg_to_smc
• da22d1b drm/amdgpu: fix overflowed array index read warning
• d2fe7ac drm/amd/display: Assign linear_pitch_alignment even for VM
• 761964b drm/amdgpu: Fix uninitialized variable warning in amdgpu_afmt_acr
• 3d2e1b8 mptcp: pr_debug: add missing \n at the end
• a088190 mptcp: avoid duplicated SUB_CLOSED events
• 1f4ca10 selftests: mptcp: join: stop transfer when check is done (part 2.2)
• 5803af6 selftests: mptcp: join: disable get and dump addr checks
• 81f2e73 selftests: mptcp: join: test for flush/re-add endpoints
• f9ca09b selftests: mptcp: join: check re-re-adding ID 0 signal
• a417ef4 selftests: mptcp: join: validate event numbers
• b66609e selftests: mptcp: add mptcp_lib_events helper
• 0a37a0e selftests: mptcp: join: check re-adding init endp with != id
• 43ca9a1 selftests: mptcp: join: check re-using ID of unused ADD_ADDR
• a95e3e7 selftests: mptcp: add explicit test case for remove/readd
• 8863e43 selftests: mptcp: join: cannot rm sf if closed
• a17d141 selftests: mptcp: declare event macros in mptcp_lib
• 485bb19 selftests: mptcp: userspace pm get addr tests
• 1b8af4b selftests: mptcp: dump userspace addrs list
• 0586719 selftests: mptcp: userspace pm create id 0 subflow
• 2a72ceb mptcp: pm: fix RM_ADDR ID for the initial subflow
• 0229074 mptcp: make pm_remove_addrs_and_subflows static
• 489f245 ASoC: codecs: ES8326: button detect issue
• 2eb143e ASoC: amd: yc: Support mic on Lenovo Thinkpad E14 Gen 6
• cc30046 net: usb: qmi_wwan: add MeiG Smart SRM825L
• 2ea1fab dma-debug: avoid deadlock between dma debug vs printk and netconsole
• b1322bc i2c: Fix conditional for substituting empty ACPI functions
• 8b28f8c spi: hisi-kunpeng: Add validation for the minimum value of speed_hz
• 533e175 ASoC: amd: yc: Support mic on HP 14-em0002la
• 77e5d74 smb: client: fix FSCTL_GET_REPARSE_POINT against NetApp
• ad3bc43 net/mlx5: DR, Fix 'stack guard page was hit' error in dr_rule
• f8b39e2 ALSA: seq: ump: Explicitly reset RPN with Null RPN
• 9062e98 ALSA: seq: ump: Transmit RPN/NRPN message at each MSB/LSB data reception
• 7c34c68 ALSA: seq: ump: Use the common RPN/bank conversion context
• 4ed4e84 ALSA: ump: Explicitly reset RPN with Null RPN
• 5a494fd ALSA: ump: Transmit RPN/NRPN message at each MSB/LSB data reception
• bd81956 ALSA: hda/conexant: Mute speakers at suspend / shutdown
• 8f11fbe ALSA: hda/generic: Add a helper to mute speakers at suspend/shutdown
• 9b090cc btrfs: tree-checker: validate dref root and objectid
• 02c19d7 scsi: ufs: core: Bypass quick recovery if force reset is needed
• 8d1af5c scsi: ufs: core: Check LSDBS cap when !mcq
• 512bd0c drm: panel-orientation-quirks: Add quirk for OrangePi Neo
• d5618ea drm/fb-helper: Don't schedule_work() to flush frame buffer during panic()

Homepage
Download Linux 6.6.50-xanmod1 source from GitHub