The first XanMod Linux kernel based on the Linux kernel 6.11 series 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 6.11.0-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

• 9c60408 Linux 6.11.0-xanmod1
• ecc7417 XANMOD: .gitlab-ci: Add gitlab-ci.yml file
• be64769 sysctl: add sysctl to disallow unprivileged CLONE_NEWUSER by default
• c371f5e PCI: Enable overrides for missing ACS capabilities
• 2f96de9 mfd: steamdeck: Expose controller board power in sysfs
• 4eb20bd mfd: Add MFD core driver for Steam Deck
• 1baead0 leds: steamdeck: Add support for Steam Deck LED
• 30b84b2 hwmon: steamdeck-hwmon: Add support for max battery level/rate
• b0e81e3 hwmon: Add driver for Steam Deck's EC sensors
• 70e352f extcon: Add driver for Steam Deck
• 0677f73 file: export file_close_fd() instead of close_fd_get_file()
• f0fb38c wait: allow to use __wake_up_pollfree() from GPL modules
• f49c1c5 binder: give binder_alloc its own debug mask file
• bf2c7be binder: turn into module
• e135ad4 Revert "misc: ntsync: mark driver as "broken" to prevent from building"
• 3767b0e docs: ntsync: Add documentation for the ntsync uAPI.
• c4b402d maintainers: Add an entry for ntsync.
• eea05ea selftests: ntsync: Add a stress test for contended waits.
• 2579aa0 selftests: ntsync: Add some tests for wakeup signaling via alerts.
• d5c6493 selftests: ntsync: Add tests for alertable waits.
• c1088aa selftests: ntsync: Add some tests for wakeup signaling with events.
• 4147829 selftests: ntsync: Add some tests for auto-reset event state.
• b9620f2 selftests: ntsync: Add some tests for manual-reset event state.
• aba960b selftests: ntsync: Add some tests for wakeup signaling with WINESYNC_IOC_WAIT_ALL.
• 9068ef9 selftests: ntsync: Add some tests for wakeup signaling with WINESYNC_IOC_WAIT_ANY.
• c70334d selftests: ntsync: Add some tests for NTSYNC_IOC_WAIT_ALL.
• 4f7ebee selftests: ntsync: Add some tests for NTSYNC_IOC_WAIT_ANY.
• 46bc834 selftests: ntsync: Add some tests for mutex state.
• aab99ad selftests: ntsync: Add some tests for semaphore state.
• 1f2e05a ntsync: Introduce alertable waits.
• ec13d9b ntsync: Introduce NTSYNC_IOC_EVENT_READ.
• 22d9945 ntsync: Introduce NTSYNC_IOC_MUTEX_READ.
• 727ea9e ntsync: Introduce NTSYNC_IOC_SEM_READ.
• 9cf5efc ntsync: Introduce NTSYNC_IOC_EVENT_PULSE.
• 5075d18 ntsync: Introduce NTSYNC_IOC_EVENT_RESET.
• ff60845 ntsync: Introduce NTSYNC_IOC_EVENT_SET.
• ad57851 ntsync: Introduce NTSYNC_IOC_CREATE_EVENT.
• 97d0f43 ntsync: Introduce NTSYNC_IOC_MUTEX_KILL.
• 99b94f1 ntsync: Introduce NTSYNC_IOC_MUTEX_UNLOCK.
• 2740171 ntsync: Introduce NTSYNC_IOC_CREATE_MUTEX.
• 577bd21 ntsync: Introduce NTSYNC_IOC_WAIT_ALL.
• 99377be ntsync: Introduce NTSYNC_IOC_WAIT_ANY.
• ec90a2e mac80211: ignore AP power level when tx power type is "fixed"
• aa30866 netfilter: add xt_FLOWOFFLOAD target
• 9e77928 netfilter: Add netfilter nf_tables fullcone support
• 707dfe1 tcp: Add a sysctl to skip tcp collapse processing when the receive buffer is full
• 636ec62 x86/cfi,bpf: Add tso_segs and skb_marked_lost to bpf_struct_ops CFI
• d11faee tcp: export TCPI_OPT_ECN_LOW in tcp_info tcpi_options field
• aa82196 net-tcp_bbr: v3: ensure ECN-enabled BBR flows set ECT on retransmits
• 914464e net-tcp_bbr: v3: update TCP "bbr" congestion control module to BBRv3
• 2e00a99 tcp: introduce per-route feature RTAX_FEATURE_ECN_LOW
• 283c063 net-tcp_bbr: v2: introduce is_acking_tlp_retrans_seq into rate_sample
• 0d4a03a net-tcp_bbr: v2: inform CC module of losses repaired by TLP probe
• b8a2c04 net-tcp_bbr: v2: record app-limited status of TLP-repaired flight
• 4009a00 net-tcp: add fast_ack_mode=1: skip rwin check in tcp_fast_ack_mode__tcp_ack_snd_check()
• c8ce7c1 net-tcp: re-generalize TSO sizing in TCP CC module API
• 9230a3f net-tcp: add new ca opts flag TCP_CONG_WANTS_CE_EVENTS
• 53d2e7c net-tcp_bbr: v2: adjust skb tx.in_flight upon split in tcp_fragment()
• db76975 net-tcp_bbr: v2: adjust skb tx.in_flight upon merge in tcp_shifted_skb()
• c66376d net-tcp_bbr: v2: introduce ca_ops->skb_marked_lost() CC module callback API
• fb0442a net-tcp_bbr: v2: export FLAG_ECE in rate_sample.is_ece
• 13bc081 net-tcp_bbr: v2: count packets lost over TCP rate sampling interval
• d29c16b net-tcp_bbr: v2: snapshot packets in flight at transmit time and pass in rate_sample
• c8b92e2 net-tcp_bbr: v2: shrink delivered_mstamp, first_tx_mstamp to u32 to free up 8 bytes
• f7beb6d net-tcp_bbr: broaden app-limited rate sample detection
• aa588c4 ZEN: dm-crypt: Disable workqueues for crypto ops
• 70796a7 ZEN: input/evdev: Use call_rcu when detaching client
• d20e374 drivers: initialize ata before graphics
• 06bea82 locking: rwsem: spin faster
• 9308286 firmware: Enable stateless firmware loading
• 0d74190 sched/wait: Do accept() in LIFO order for cache efficiency
• 15f91ff XANMOD: Makefile: Move ARM and x86 instruction set selection to kernel-wide build
• 595aad6 x86/kconfig: more uarches for kernel 6.8-rc4+
• eb42d6c XANMOD: scripts/setlocalversion: Move localversion* files to the end
• bea9f2e XANMOD: scripts/setlocalversion: remove "+" tag for git repo short version
• 0006147 XANMOD: lib/kconfig.debug: disable default SYMBOLIC_ERRNAME and DEBUG_BUGVERBOSE
• f41037c XANMOD: cpufreq: tunes ondemand and conservative governor for performance
• 8b42012 XANMOD: sched/autogroup: Add kernel parameter and config option to enable/disable autogroup feature by default
• 73df371 XANMOD: mm/vmscan: Set minimum amount of swapping
• eb3f355 XANMOD: mm: Raise max_map_count default value
• 53a8dc8 XANMOD: dcache: cache_pressure = 50 decreases the rate at which VFS caches are reclaimed
• 1637fbf XANMOD: kconfig: add 500Hz timer interrupt kernel config option
• 2780880 XANMOD: blk-wbt: Set wbt_default_latency_nsec() to 2msec
• 08580ad XANMOD: block: Set rq_affinity to force complete I/O requests on same CPU
• f4b45e0 XANMOD: block/mq-deadline: Disable front_merges by default
• 9d6ba82 XANMOD: block/mq-deadline: Increase write priority to improve responsiveness
• 0734195 XANMOD: sched: Add yield_type sysctl to reduce or disable sched_yield
• e980052 XANMOD: fair: Set scheduler tunable latencies to unscaled
• 867a311 kbuild: Remove GCC minimal function alignment
• 2a949c8 XANMOD: kbuild: Add GCC SMS-based modulo scheduling flags
• 05334b1 XANMOD: x86/build: Add more CFLAGS optimizations
• 3ebc1fd XANMOD: x86/build: Prevent generating avx2 and avx512 floating-point code
• 98f7e32 Linux 6.11

Homepage
Download Linux 6.11.0-xanmod1 source from GitHub