A new XanMod Linux Kernel based on Linux Kernel 6.6.41 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 6.6.41-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

• cc6b5f1 Linux 6.6.41-xanmod1
• 045e94e XANMOD: sched/core: Increase number of tasks to iterate in a single balance run
• 1f8a96f Merge tag 'v6.6.41' into 6.6
• 2eaf5c0 Linux 6.6.41
• eb7641f i2c: rcar: fix error code in probe()
• e243c11 kbuild: Make ld-version.sh more robust against version string changes
• dae3543 x86/bhi: Avoid warning in #DB handler due to BHI mitigation
• 2f5f0eb x86/entry/64: Remove obsolete comment on tracing vs. SYSRET
• f73481d x86/entry: Rename ignore_sysret()
• 557d62e i2c: rcar: clear NO_RXDMA flag after resetting
• bc66325 i2c: testunit: avoid re-issued work after read message
• 4d2d049 i2c: rcar: ensure Gen3+ reset does not disturb local targets
• 988c313 i2c: rcar: introduce Gen4 devices
• 4c029f0 i2c: rcar: reset controller is mandatory for Gen3+
• ff3d2cf i2c: mark HostNotify target address as used
• 5bfec9c i2c: rcar: bring hardware to known state when probing
• c1bf973 btrfs: tree-checker: add type and sequence check for inline backrefs
• 448a250 sched: Move psi_account_irqtime() out of update_rq_clock_task() hotpath
• 4dc200e ext4: avoid ptr null pointer dereference
• 60f6151 nilfs2: fix kernel bug on rename operation of broken directory
• 6b05ad4 selftests/net: fix gro.c compilation failure due to non-existent opt_ipproto_off
• 11078e2 mm/damon/core: merge regions aggressively when max_nr_regions is unmet
• 93893ea mm/shmem: disable PMD-sized page cache if needed
• 5e305b5 misc: fastrpc: Restrict untrusted app to attach to privileged PD
• aeab0a8 misc: fastrpc: Fix ownership reassignment of remote heap
• 8b8b82d misc: fastrpc: Fix memory leak in audio daemon attach operation
• ba602c7 misc: fastrpc: Copy the complete capability structure to user
• 143982d misc: fastrpc: Avoid updating PD type for capability request
• 2b2fb81 misc: fastrpc: Fix DSP capabilities request
• b6a5c68 wireguard: send: annotate intentional data race in checking empty queue
• f89f44e wireguard: queueing: annotate intentional data race in cpu round robin
• 6638a20 wireguard: allowedips: avoid unaligned 64-bit memory accesses
• 6a43cd6 wireguard: selftests: use acpi=off instead of -no-acpi for recent QEMU
• e408184 cpufreq: Allow drivers to advertise boost enabled
• 2ca2fd4 cpufreq: ACPI: Mark boost policy as enabled when setting boost
• 08985dd ACPI: processor_idle: Fix invalid comparison with insertion sort for latency
• 9525af1 libceph: fix race between delayed_work() and ceph_monc_stop()
• f0cc5f7 pmdomain: qcom: rpmhpd: Skip retention level for Power Domains
• cd94cac Fix userfaultfd_api to return EINVAL as expected
• b5634da ALSA: hda/realtek: Limit mic boost on VAIO PRO PX
• 77f64c3 ALSA: hda/realtek: Enable Mute LED on HP 250 G7
• 9e6b110 ALSA: hda/realtek: add quirk for Clevo V5[46]0TU
• 23efa74 tty: serial: ma35d1: Add a NULL check for of_node
• 639868f platform/x86: toshiba_acpi: Fix array out-of-bounds access
• c01f9a6 nvmem: core: only change name to fram for current attribute
• c3debec nvmem: meson-efuse: Fix return value of nvmem callbacks
• 5f97b61 nvmem: rmem: Fix return value of rmem_read()
• 25712a3 arm64: dts: qcom: sc8280xp-x13s: fix touchscreen power on
• 1e35301 arm64: dts: qcom: sa8775p: Correct IRQ number of EL2 non-secure physical timer
• 618edb8 iio: trigger: Fix condition for own trigger
• 9e84b1b ksmbd: discard write access to the directory open
• a0c42dd mm/filemap: make MAX_PAGECACHE_ORDER acceptable to xarray
• 06b5a69 mm/filemap: skip to create PMD-sized page cache if needed
• 28acd53 mm: vmalloc: check if a hash-index is in cpu_possible_mask
• 794fa52 s390/mm: Add NULL pointer check to crst_table_free() base_crst_free()
• 9339641 xhci: always resume roothubs if xHC was reset during resume
• a3d8302 hpet: Support 32-bit userspace
• 814a99b misc: microchip: pci1xxxx: Fix return value of nvmem callbacks
• 647d61a USB: core: Fix duplicate endpoint bug by clearing reserved bits in the descriptor
• d120503 usb: gadget: configfs: Prevent OOB read/write in usb_string_copy()
• add279f usb: dwc3: pci: add support for the Intel Panther Lake
• 20836c9 USB: Add USB_QUIRK_NO_SET_INTF quirk for START BP-850k
• 5ae6a64 USB: serial: mos7840: fix crash on resume
• 5117511 USB: serial: option: add Rolling RW350-GL variants
• 8ee097a USB: serial: option: add Netprisma LCUK54 series modules
• 4e8c088 USB: serial: option: add support for Foxconn T99W651
• 9201d38 USB: serial: option: add Fibocom FM350-GL
• 8d32026 USB: serial: option: add Telit FN912 rmnet compositions
• 5aaeb60 USB: serial: option: add Telit generic core-dump composition
• 32b96db net: ks8851: Fix potential TX stall after interface reopen
• 80ece00 net: ks8851: Fix deadlock with the SPI chip variant
• dfcdd7f tcp: avoid too many retransmit packets
• b75f281 tcp: use signed arithmetic in tcp_rtx_probe0_timed_out()
• 1e116c1 Revert "sched/fair: Make sure to try to detach at least one movable task"
• 87f3ceb cifs: fix setting SecurityFlags to true
• 8665fb9 octeontx2-af: fix issue with IPv4 match for RSS
• 0207c79 octeontx2-af: fix issue with IPv6 ext match for RSS
• 2c41eaa octeontx2-af: fix detection of IP layer
• d24b124 octeontx2-af: fix a issue with cpt_lf_alloc mailbox
• 22b864f octeontx2-af: replace cpt slot with lf id on reg write
• 0e17926 i40e: fix: remove needless retries of NVM update
• cf3c237 ARM: davinci: Convert comma to semicolon
• 392cff2 firmware: cs_dsp: Use strnlen() on name fields in V1 wmfw files
• 8246bbf ASoC: SOF: Intel: hda: fix null deref on system suspend entry
• 76ea8e1 firmware: cs_dsp: Prevent buffer overrun when processing V2 alg headers
• 3a9cd92 firmware: cs_dsp: Validate payload length before processing block
• 90ab191 firmware: cs_dsp: Return error if block header overflows file
• 9c9877a firmware: cs_dsp: Fix overflow checking of wmfw header
• 6bd5aff arm64: dts: qcom: sc8180x: Fix LLCC reg property again
• 21379c6 s390: Mark psw in __load_psw_mask() as __unitialized
• d6c686c net, sunrpc: Remap EPERM in case of connection failure in xs_tcp_setup_socket
• 799a349 net/sched: Fix UAF when resolving a clash
• c5fd77c udp: Set SOCK_RCU_FREE earlier in udp_lib_get_port().
• feeeeb4 ethtool: netlink: do not return SQI value if link is down
• 099502c ppp: reject claimed-as-LCP but actually malformed packets
• 853f8cd net: ethernet: mtk-star-emac: set mac_managed_pm when probing
• 9369830 bpf: Fail bpf_timer_cancel when callback is being cancelled
• e97c862 bpf: replace bpf_timer_init with a generic helper
• 5910035 bpf: make timer data struct more generic
• e65a49b bpf: fix order of args in call to bpf_map_kvcalloc
• 9d23909 net: ethernet: lantiq_etop: fix double free in detach
• 5266302 i40e: Fix XDP program unloading while removing the driver
• 7e9092d net: fix rc7's __skb_datagram_iter()
• 13bf7ce octeontx2-af: Fix incorrect value output on error path in rvu_check_rsrc_availability()
• b180739 skmsg: Skip zero length skb in sk_msg_recvmsg
• 0370f66 net: phy: microchip: lan87xx: reinit PHY after cable test
• 230bb13 bpf: Fix too early release of tcx_entry
• 124886c tcp: fix incorrect undo caused by DSACK of TLP retransmit
• e304a67 net: bcmasp: Fix error code in probe()
• cbfc844 vfs: don't mod negative dentry count when on shrinker list
• f71ebe7 fs/dcache: Re-use value stored to dentry->d_flags instead of re-reading
• 432b06b filelock: fix potential use-after-free in posix_lock_inode
• cae91b5 dsa: lan9303: Fix mapping between DSA port number and PHY address
• 6bb6bd3 cachefiles: add missing lock protection when polling
• de045a8 cachefiles: cyclic allocation of msg_id to avoid reuse
• d3179ba cachefiles: wait for ondemand_object_worker to finish when dropping object
• ed60c1a cachefiles: cancel all requests for the object that is being dropped
• 32e0a9a cachefiles: stop sending new request when dropping object
• 1894386 cachefiles: narrow the scope of triggering EPOLLIN events in ondemand mode
• a04cc7f cachefiles: propagate errors from vfs_getxattr() to avoid infinite loop
• f476dff vfio/pci: Init the count variable in collecting hot-reset devices
• c3111b3 scsi: ufs: core: Fix ufshcd_abort_one racing issue
• bed0896 scsi: ufs: core: Fix ufshcd_clear_cmd racing issue
• 797323d mm: prevent derefencing NULL ptr in pfn_section_valid()
• fc19e23 Compiler Attributes: Add __uninitialized macro

Homepage
Download Linux 6.6.41-xanmod1 source from GitHub