A new XanMod Linux Kernel based on the latest Linux Kernel 5.11.11 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 5.11.11-xanmod1

• fa947bb Linux 5.11.11-xanmod1
• 09e8384 Merge tag 'v5.11.11' into 5.11
• aa7258f Linux 5.11.11
• 632b046 xen-blkback: don't leak persistent grants from xen_blkbk_map()
• 039f4b3 selftest/bpf: Add a test to check trampoline freeing logic.
• d795e12 can: peak_usb: Revert "can: peak_usb: add forgotten supported devices"
• 14a3924 nvme: fix the nsid value to print in nvme_validate_or_alloc_ns
• 05009ab Revert "xen: fix p2m size in dom0 for disabled memory hotplug case"
• 9e7af67 fs/ext4: fix integer overflow in s_log_groups_per_flex
• 284acd4 ext4: add reclaim checks to xattr code
• 19bd749 mac80211: fix double free in ibss_leave
• 95767e8 net: dsa: b53: VLAN filtering is global to all users
• bdd7ead r8169: fix DMA being used after buffer free if WoL is enabled
• 0a675f6 can: dev: Move device back to init netns on owning netns delete
• bc21889 ch_ktls: fix enum-conversion warning
• 05f618b fs/cachefiles: Remove wait_bit_key layout dependency
• e5f5af0 x86/mem_encrypt: Correct physical address calculation in __set_clr_pte_enc()
• 267ca49 locking/mutex: Fix non debug version of mutex_lock_io_nested()
• 012597d cifs: Adjust key sizes and key generation routines for AES256 encryption
• d6e8a2f smb3: fix cached file size problems in duplicate extents (reflink)
• 9e2cb7a scsi: mpt3sas: Fix error return code of mpt3sas_base_attach()
• 6148b7c scsi: qedi: Fix error return code of qedi_alloc_global_queues()
• 373ab2d scsi: Revert "qla2xxx: Make sure that aborted commands are freed"
• 4788e5b block: recalculate segment count for multi-segment discards correctly
• 9c36abf io_uring: fix provide_buffers sign extension
• 3c840c4 perf synthetic events: Avoid write of uninitialized memory when generating PERF_RECORD_MMAP* records
• 693d9a5 perf auxtrace: Fix auxtrace queue conflict
• 321dbe6 ACPI: scan: Use unique number for instance_no
• c299cb4 ACPI: scan: Rearrange memory allocation in acpi_device_add()
• d219ca6 Revert "netfilter: x_tables: Update remaining dereference to RCU"
• 6954c35 mm/mmu_notifiers: ensure range_end() is paired with range_start()
• 399a5a9 dm table: Fix zoned model check and zone sectors check
• 203e451 platform/x86: dell-wmi-sysman: Cleanup create_attributes_level_sysfs_files()
• b726622 bpf: Use NOP_ATOMIC5 instead of emit_nops(&prog, 5) for BPF_TRAMP_F_CALL_ORIG
• 85d177f bpf: Fix fexit trampoline.
• 4c2d548 netfilter: x_tables: Use correct memory barriers.
• 04b8e4f Revert "netfilter: x_tables: Switch synchronization to RCU"
• f6a6d0a net: phy: broadcom: Fix RGMII delays for BCM50160 and BCM50610M
• 741ae9a net: phy: broadcom: Set proper 1000BaseX/SGMII interface mode for BCM54616S
• 5de176a net: phy: broadcom: Avoid forward for bcm54xx_config_clock_delay()
• bc5c346 net: phy: introduce phydev->port
• ea2702b net: axienet: Fix probe error cleanup
• e0557a6 igb: avoid premature Rx buffer reuse
• 6523e59 net, bpf: Fix ip6ip6 crash with collect_md populated skbs
• 3331dba net: Consolidate common blackhole dst ops
• 18ad5cc bpf: Don't do bpf_cgroup_storage_set() for kuprobe/tp programs
• bbac102 mm: memblock: fix section mismatch warning again
• 942bfc1 RDMA/cxgb4: Fix adapter LE hash errors while destroying ipv6 listening server
• d70fda8 xen/x86: make XEN_BALLOON_MEMORY_HOTPLUG_LIMIT depend on MEMORY_HOTPLUG
• cbf813a octeontx2-af: Fix memory leak of object buf
• 458ce1e net: bridge: don't notify switchdev for local FDB addresses
• 23cc873 platform/x86: intel_pmt_crashlog: Fix incorrect macros
• e5932c5 PM: EM: postpone creating the debugfs dir till fs_initcall
• a7f88d6 mfd: intel_quark_i2c_gpio: Revert "Constify static struct resources"
• c4421a1 net/mlx5e: Fix error path for ethtool set-priv-flag
• 1c178ae net/mlx5e: Offload tuple rewrite for non-CT flows
• 60b66dc net/mlx5e: Allow to match on MPLS parameters only for MPLS over UDP
• 62cc646 net/mlx5: Add back multicast stats for uplink representor
• 8b39e4d PM: runtime: Defer suspending suppliers
• c952919 arm64: kdump: update ppos when reading elfcorehdr
• 3cd192e drm/msm: Fix suspend/resume on i.MX5
• 31523d2 drm/msm: fix shutdown hook in case GPU components failed to bind
• d6e159f platform/x86: dell-wmi-sysman: Make sysman_init() return -ENODEV of the interfaces are not found
• 4940c55 platform/x86: dell-wmi-sysman: Cleanup sysman_init() error-exit handling
• 70b139a platform/x86: dell-wmi-sysman: Fix release_attributes_data() getting called twice on init_bios_attributes() failure
• 2e6468a platform/x86: dell-wmi-sysman: Make it safe to call exit_foo_attributes() multiple times
• 2286f94 platform/x86: dell-wmi-sysman: Fix possible NULL pointer deref on exit
• 07e797b platform/x86: dell-wmi-sysman: Fix crash caused by calling kset_unregister twice
• 22e4f2b can: isotp: tx-path: zero initialize outgoing CAN frames
• 5f8cad9 bpf: Fix umd memory leak in copy_process()
• 78741b9 libbpf: Fix BTF dump of pointer-to-array-of-struct
• 237e39c selftests: forwarding: vxlan_bridge_1d: Fix vxlan ecn decapsulate value
• 737af13 selinux: vsock: Set SID for socket returned by accept()
• b1afe78 net: stmmac: dwmac-sun8i: Provide TX and RX fifo sizes
• b339d5b r8152: limit the RX buffer size of RTL8153A for USB 2.0
• 4147dff sctp: move sk_route_caps check and set into sctp_outq_flush_transports
• 8fdd62c igb: check timestamp validity
• 2aafc27 net: cdc-phonet: fix data-interface release on probe failure
• a39e937 net: check all name nodes in __dev_alloc_name
• 99ec8db octeontx2-af: fix infinite loop in unmapping NPC counter
• f4e5168 octeontx2-pf: Clear RSS enable flag on interace down
• ff77243 octeontx2-af: Fix irq free in rvu teardown
• 9822a52 octeontx2-af: Remove TOS field from MKEX TX
• 4443c54 octeontx2-af: Formatting debugfs entry rsrc_alloc.
• 56fb317 ipv6: weaken the v4mapped source check
• e07586e ARM: dts: imx6ull: fix ubi filesystem mount failed
• 8c06321 libbpf: Use SOCK_CLOEXEC when opening the netlink socket
• d5b1065 libbpf: Fix error path in bpf_object__elf_init()
• 4cbeb30 netfilter: flowtable: Make sure GC works periodically in idle system
• d7f062b netfilter: nftables: allow to update flowtable flags
• f51ef7f netfilter: nftables: report EOPNOTSUPP on unsupported flowtable flags
• 5cb5b2c net/sched: cls_flower: fix only mask bit check in the validate_ct_state
• 7ad5b92 ionic: linearize tso skb with too many frags
• bbdf319 drm/msm/dsi: fix check-before-set in the 7nm dsi_pll code
• 4b4ddf2 ftrace: Fix modify_ftrace_direct.
• 0b2a454 nfp: flower: fix pre_tun mask id allocation
• 7a50e1e nfp: flower: add ipv6 bit to pre_tunnel control message
• a058433 nfp: flower: fix unsupported pre_tunnel flows
• 9aefd55 selftests/net: fix warnings on reuseaddr_ports_exhausted
• 331d42f mac80211: Allow HE operation to be longer than expected.
• fe744cf mac80211: fix rate mask reset
• 238445a can: m_can: m_can_rx_peripheral(): fix RX being blocked by errors
• 9d6b6ee can: m_can: m_can_do_rx_poll(): fix extraneous msg loss warning
• b0c48f0 can: c_can: move runtime PM enable/disable to c_can_platform
• 97562a1 can: c_can_pci: c_can_pci_remove(): fix use-after-free
• 7c5599a can: kvaser_pciefd: Always disable bus load reporting
• eea9b68 can: flexcan: flexcan_chip_freeze(): fix chip freeze for missing bitrate
• c150969 can: peak_usb: add forgotten supported devices
• 8c7458a can: isotp: TX-path: ensure that CAN frame flags are initialized
• e8166ee can: isotp: isotp_setsockopt(): only allow to set low level TX flags for CAN-FD
• 8b1174a mptcp: fix ADD_ADDR HMAC in case port is specified
• 191d215 tcp: relookup sock for RST+ACK packets handled by obsolete req sock
• ea9f7fa tipc: better validate user input in tipc_nl_retrieve_key()
• 4233914 net: phylink: Fix phylink_err() function name error in phylink_major_config
• b7e0dc3 net: hdlc_x25: Prevent racing between "x25_close" and "x25_xmit"/"x25_rx"
• 6817f36 netfilter: ctnetlink: fix dump of the expect mask attribute
• 48bf42c selftests/bpf: Set gopt opt_class to 0 if get tunnel opt failed
• a669823 flow_dissector: fix byteorder of dissected ICMP ID
• 5905043 net: qrtr: fix a kernel-infoleak in qrtr_recvmsg()
• 4f8e661 net: ipa: terminate message handler arrays
• 0c60c80 clk: qcom: gcc-sc7180: Use floor ops for the correct sdcc1 clk
• bb3cd45 ftgmac100: Restart MAC HW once
• cd0cce7 ice: fix napi work done reporting in xsk path
• 602e7f3 net: phy: broadcom: Add power down exit reset state delay
• 0aa0860 net/qlcnic: Fix a use after free in qlcnic_83xx_get_minidump_template
• 54d0ad9 kunit: tool: Disable PAGE_POISONING under --alltests
• 72e4515 e1000e: Fix error handling in e1000_set_d0_lplu_state_82571
• 9b86d1a e1000e: add rtnl_lock() to e1000_reset_task
• 45bb2ab igc: Fix igc_ptp_rx_pktstamp()
• 228cc51 igc: Fix Supported Pause Frame Link Setting
• 6684480 igc: Fix Pause Frame Advertising
• a45d055 igc: reinit_locked() should be called with rtnl_lock
• 46e36a4 net: dsa: bcm_sf2: Qualify phydev->dev_flags based on port
• 7baf9c5 net: sched: validate stab values
• 925338a macvlan: macvlan_count_rx() needs to be aware of preemption
• 439b116 drop_monitor: Perform cleanup upon probe registration failure
• e31d27e ipv6: fix suspecious RCU usage warning
• cbe40c7 net/mlx5e: E-switch, Fix rate calculation division
• 49f80b1 net/mlx5e: Don't match on Geneve options in case option masks are all zero
• b3ff92a net/mlx5e: Revert parameters on errors when changing PTP state without reset
• 422379b net/mlx5e: When changing XDP program without reset, take refs for XSK RQs
• 871c0ab net/mlx5e: Set PTP channel pointer explicitly to NULL
• 87b5652 net/mlx5e: RX, Mind the MPWQE gaps when calculating offsets
• 40528af libbpf: Fix INSTALL flag order
• 0624c04 bpf: Change inode_storage's lookup_elem return value from NULL to -EBADF
• a9b2ab5 bpf: Dont allow vmlinux BTF to be used in map_create and prog_load.
• 3242ca0 veth: Store queue_mapping independently of XDP prog presence
• 3bdcf2b soc: ti: omap-prm: Fix occasional abort on reset deassert for dra7 iva
• 9865d67 ARM: OMAP2+: Fix smartreflex init regression after dropping legacy data
• 2f61117 soc: ti: omap-prm: Fix reboot issue with invalid pcie reset map for dra7
• 2691897 bus: omap_l3_noc: mark l3 irqs as IRQF_NO_THREAD
• 45dc106 dm ioctl: fix out of bounds array access when no devices
• c30e7e5 dm: don't report "detected capacity change" on device creation
• 4f103e0 dm verity: fix DM_VERITY_OPTS_MAX value
• c80cc46 drm/i915: Fix the GT fence revocation runtime PM logic
• 890c8ee drm/i915/dsc: fix DSS CTL register usage for ICL DSI transcoders
• 0f2b084 drm/amdgpu: Add additional Sienna Cichlid PCI ID
• e31833b drm/amdgpu: fix the hibernation suspend with s0ix
• d97d768 drm/amdgpu/display: restore AUX_DPHY_TX_CONTROL for DCN2.x
• 9b19922 drm/amd/pm: workaround for audio noise issue
• 9d8a81f drm/etnaviv: Use FOLL_FORCE for userptr
• 462817c drm/nouveau/kms/nve4-nv108: Limit cursors to 128x128
• 9840a40 integrity: double check iint_cache was initialized
• df7ccda ARM: dts: at91-sama5d27_som1: fix phy address to 7
• f4e47f4 ARM: dts: at91: sam9x60: fix mux-mask to match product's datasheet
• 3126486 ARM: dts: at91: sam9x60: fix mux-mask for PA7 so it can be set to A, B and C
• f2ff3eb arm64: dts: ls1043a: mark crypto engine dma coherent
• 728f3e7 arm64: dts: ls1012a: mark crypto engine dma coherent
• 8fa6280 arm64: dts: ls1046a: mark crypto engine dma coherent
• feb1b3a arm64: stacktrace: don't trace arch_stack_walk()
• b7c8b95 ACPICA: Always create namespace nodes using acpi_ns_create_node()
• 2875785 ACPI: video: Add missing callback back for Sony VPCEH3U1E
• 9a24f2c mm/highmem: fix CONFIG_DEBUG_KMAP_LOCAL_FORCE_MAP
• ba56848 gcov: fix clang-11+ support
• dc64239 kasan: fix per-page tags for non-page_alloc pages
• f2b078c hugetlb_cgroup: fix imbalanced css_get and css_put pair for shared mappings
• 19a3e89 squashfs: fix xattr id and id lookup sanity checks
• ddc05df squashfs: fix inode lookup sanity checks
• a4d98a9 z3fold: prevent reclaim/free race for headless pages
• 635bb49 psample: Fix user API breakage
• 2050605 platform/x86: intel-vbtn: Stop reporting SW_DOCK events
• a2035c9 netsec: restore phy power state after controller reset
• d7e5ee6 selinux: fix variable scope issue in live sidtab conversion
• 9006088 selinux: don't log MAC_POLICY_LOAD record on failed policy load
• 5025134 btrfs: fix subvolume/snapshot deletion not triggered on mount
• 8992c3e btrfs: fix sleep while in non-sleep context during qgroup removal
• 205d2ed btrfs: initialize device::fs_info always
• 24725ca btrfs: fix check_data_csum() error message for direct I/O
• 8730c91 btrfs: do not initialize dev replace for bad dev root
• a5efdb3 btrfs: do not initialize dev stats if we have no dev_root
• ca64d2a KVM: x86: Protect userspace MSR filter with SRCU, and set atomically-ish
• 84a47b7 static_call: Fix static_call_set_init()
• 5edc307 static_call: Fix the module key fixup
• 4ee2f67 static_call: Allow module use without exposing static_call_key
• fe6e1bd static_call: Pull some static_call declarations to the type headers
• f7a81b4 ia64: fix ptrace(PTRACE_SYSCALL_INFO_EXIT) sign
• 2e5df91 ia64: fix ia64_syscall_get_set_arguments() for break-based syscalls
• bf32c0b mm/fork: clear PASID for new mm
• 698e5db io_uring: cancel deferred requests in try_cancel
• f614a7f block: Suppress uevent for hidden device when removed
• 68dade7 nfs: we don't support removing system.nfs4_acl
• 645c3a3 nvme-pci: add the DISABLE_WRITE_ZEROES quirk for a Samsung PM1725a
• cdcb992 nvme-rdma: Fix a use after free in nvmet_rdma_write_data_done
• 0defa56 nvme-core: check ctrl css before setting up zns
• 4994ebf nvme-fc: return NVME_SC_HOST_ABORTED_CMD when a command has been aborted
• e11e833 nvme-fc: set NVME_REQ_CANCELLED in nvme_fc_terminate_exchange()
• e34bc51 nvme: add NVME_REQ_CANCELLED flag in nvme_cancel_request()
• 51669f7 nvme: simplify error logic in nvme_validate_ns()
• f632b1e drm/radeon: fix AGP dependency
• 51c2898 drm/amdgpu: fb BO should be ttm_bo_type_device
• 685db0f drm/amdgpu/display: Use wm_table.entries for dcn301 calculate_wm
• 6f46011 drm/amd/display: Enabled pipe harvesting in dcn30
• 6580645 drm/amd/display: Revert dram_clock_change_latency for DCN2.1
• 56043c3 drm/amd/display: Enable pflip interrupt upon pipe enable
• 0867825 block: Fix REQ_OP_ZONE_RESET_ALL handling
• 0bb6bda regulator: qcom-rpmh: Use correct buck for S1C regulator
• 2fee1be regulator: qcom-rpmh: Correct the pmic5_hfsmps515 buck
• fd2d1cc kselftest: arm64: Fix exit code of sve-ptrace
• d8aaff9 u64_stats,lockdep: Fix u64_stats_init() vs lockdep
• 3f88406 staging: rtl8192e: fix kconfig dependency on CRYPTO
• 4ddfee8 habanalabs: Disable file operations after device is removed
• b41ef75 habanalabs: Call put_pid() when releasing control device
• a2aadd6 sparc64: Fix opcode filtering in handling of no fault loads
• a4b0e21 umem: fix error return code in mm_pci_probe()
• 207e723 kbuild: dummy-tools: fix inverted tests for gcc
• 0346028 kbuild: add image_name to no-sync-config-targets
• 8dbe24b irqchip/ingenic: Add support for the JZ4760
• 0ee03a8 cifs: change noisy error message to FYI
• a81f8a7 atm: idt77252: fix null-ptr-dereference
• 5700aec atm: uPD98402: fix incorrect allocation
• f548e1d net: enetc: set MAC RX FIFO to recommended value
• 469a97c net: davicom: Use platform_get_irq_optional()
• 31604dd net: wan: fix error return code of uhdlc_init()
• b8d9630 net: hisilicon: hns: fix error return code of hns_nic_clear_all_rx_fetch()
• 860edfa NFS: Correct size calculation for create reply length
• 4e1854c nfs: fix PNFS_FLEXFILE_LAYOUT Kconfig default
• 39bbcd8 gpiolib: acpi: Add missing IRQF_ONESHOT
• 4ea4183 cpufreq: blacklist Arm Vexpress platforms in cpufreq-dt-platdev
• d3d7254 gfs2: fix use-after-free in trans_drain
• 14c6e45 cifs: ask for more credit on async read/write code paths
• 5b54b18 gianfar: fix jumbo packets+napi+rx overrun crash
• ffadc28 sun/niu: fix wrong RXMAC_BC_FRM_CNT_COUNT count
• 10e279b net: intel: iavf: fix error return code of iavf_init_get_resources()
• 85d8430 net: tehuti: fix error return code in bdx_probe()
• 5b78d2f blk-cgroup: Fix the recursive blkg rwstat
• fe39c84 scsi: ufs: ufs-qcom: Disable interrupt in reset path
• 3090a6a ixgbe: Fix memleak in ixgbe_configure_clsu32
• a81ca56 ALSA: hda: ignore invalid NHLT table
• 043bd60 Revert "r8152: adjust the settings about MAC clock speed down for RTL8153"
• fcafe4c atm: lanai: dont run lanai_dev_close if not open
• 86f9655 atm: eni: dont release is never initialized
• 4e94f30 powerpc/4xx: Fix build errors from mfdcr()
• e5183a7 net: fec: ptp: avoid register access when ipg clock is disabled
• 61f976d net: stmmac: fix dma physical address of descriptor when display ring
• ba5ec41 mt76: mt7915: only modify tx buffer list after allocating tx token id
• 12d8103 mt76: fix tx skb error handling in mt76_dma_tx_queue_skb

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Download Linux 5.11.11-xanmod1 source from GitHub