Proxmox VE Kernel 7.0.0-rc4 (7.0.0-8~jaminmc1) – Unofficial PROXMOX based kernel.

Custom Proxmox VE kernel build based on Linux 7.0.0-rc4

Early-access UNOFFICIAL test build for Proxmox VE users who want the latest upstream improvements ahead of official support.
Rebased on Ubuntu development sources with Proxmox configuration and local-build optimizations.

Build Information

• Upstream: Linux 7.0.0-rc4
• Ubuntu rebase: Ubuntu-7.0.0-8.8 (7.0.0-rc4 track)
• Config: Proxmox VE defaults (high VM density, ZFS/Ceph friendly) + improved local compilation settings
• Includes updated pve-firmware_3.20-1-jaminmc_all.deb for better hardware/firmware compatibility

Important Warnings

• Release Candidate 4 — this is still pre-stable. Use only on test or non-production nodes.
• Full backup of VMs, containers, and ZFS pools is strongly recommended before installing.
• Monitor live migration, Ceph, and ZFS performance. Have your previous kernel (6.17) ready as fallback.

Installation

Download all the files into one directory (e.g. ~/kernel-7.0):

Then run:

cd ~/kernel-7.0  # or the folder you downloaded them into
sudo apt install ./*.deb

This installs the new kernel, headers, tools, and the updated pve-firmware in one command (apt handles dependencies and ordering automatically).

# Reboot and you should see the new kernel in the Boot List
reboot

After reboot verify with:

uname -r
pveversion

Full Changelog: v7.0.0-2...v7.0.0-8

Proxmox VE Kernel 7.0.0-rc3 (7.0.0-2~jaminmc1) – Unofficial PROXMOX based kernel.

Custom Proxmox VE kernel build based on Linux 7.0.0-rc3

Early-access UNOFFICIAL test build for Proxmox VE users who want the latest upstream improvements ahead of official support.
Rebased on Ubuntu development sources with Proxmox configuration and local-build optimizations.

Build Information

• Upstream: Linux 7.0.0-rc3
• Ubuntu rebase: Ubuntu-7.0.0-7.7 (7.0.0-rc3 track)
• Config: Proxmox VE defaults (high VM density, ZFS/Ceph friendly) + improved local compilation settings
• Includes updated pve-firmware_3.20-1-jaminmc_all.deb for better hardware/firmware compatibility

Top 10 Changes in Linux 7.0.0 Since Kernel 6.17 That Benefit Proxmox

This kernel brings all the upstream improvements from 6.18 + 6.19 plus the brand-new 7.0 features. It delivers measurable gains in KVM performance, memory efficiency, networking, security, and next-gen hardware support — directly benefiting VM/LXC density, live migration, ZFS/Ceph storage, and future server hardware.

1. KVM AMD ERAPS Support
   Guests on Zen 5+ now receive full Enhanced Return Address Predictor Security virtualization. Better guest-side security mitigations with near-zero hypervisor overhead — great for dense KVM workloads.
   Phoronix

2. KVM Preparations for Intel APX
   Infrastructure for Intel Advanced Performance Extensions (32 general-purpose registers instead of 16). Future Nova Lake / Diamond Rapids VMs will see significantly better compute performance.
   Phoronix

3. IBPB-On-Entry Hardening for AMD SEV-SNP
   Automatic indirect branch prediction barrier on every VM entry for SEV-SNP confidential guests. Stronger protection against speculative attacks on Zen 5 EPYC — ideal for multi-tenant or sensitive environments.
   Phoronix

4. Sub-NUMA Clustering (SNC) Topology Fixes
   Correct NUMA reporting on recent Intel platforms. Improved vCPU scheduling, memory locality, and live-migration performance on multi-socket hosts.
   Phoronix

5. Critical SLAB Allocator Regression Fixed
   Reverted/fixed a severe memory-allocation slowdown (up to 64 % IOPS regression in some cases). Big win for high-density Proxmox hosts, ZFS, and heavy VM/LXC usage.
   Phoronix

6. epoll Scoped User Access Optimization
   ~1.5 % networking throughput boost on AMD Zen 2 and newer. Faster VM networking, iSCSI, and Ceph cluster traffic with lower CPU overhead.
   Phoronix

7. Scheduler Scalability & Fairness Improvements
   Better preemption, RSEQ time-slice extensions, and vCPU fairness. Noticeable responsiveness gains and higher safe overcommit ratios on 64+ core servers.
   Phoronix

8. Next-Gen CPU Enablement
   Full support for AMD Zen 6, Intel Nova Lake / Diamond Rapids, plus improved CXL, NTB, DSA 3.0 accelerators, and new perf events. Future-proofs your 2026+ hardware.
   Phoronix

9. Filesystem & I/O Enhancements
   Faster concurrent direct I/O writes in EXT4 + broader VFS optimizations. Improved VM disk performance, especially with ZFS passthrough and high-IOPS workloads.
   Phoronix

10. Memory Management Optimizations
    Up to 75 % faster page-cache reclaim and better writeback/overcommit handling. Higher VM/LXC density with more efficient RAM usage (especially useful with ZRAM).
    Phoronix

Important Warnings

• Release Candidate 3 — this is still pre-stable. Use only on test or non-production nodes.
• Full backup of VMs, containers, and ZFS pools is strongly recommended before installing.
• Monitor live migration, Ceph, and ZFS performance. Have your previous kernel (6.17/6.19) ready as fallback.

Installation

Download all the files into one directory (e.g. ~/kernel-7.0):

Then run:

cd ~/kernel-7.0  # or the folder you downloaded them into
sudo apt install ./*.deb

This installs the new kernel, headers, tools, and the updated pve-firmware in one command (apt handles dependencies and ordering automatically).

# Reboot and you should see the new kernel in the Boot List
reboot

After reboot verify with:

uname -r
pveversion

proxmox-kernel 6.19.5 — AMD NPU fix, RAID/RCU stability, AppArmor network fix

proxmox-kernel-6.19 · 6.19.5-2~jaminmc1

What's New

• Kernel 6.19.5 — updated to upstream stable releases v6.19.4 and v6.19.5, based on Ubuntu-6.19.0-9.9.

Bug Fixes

• AppArmor — fix fine-grained inet mediation sock_file_perm that was blocking write(2) on network sockets (LP: #2141298).
• MD/RAID — fix IO hang on degraded arrays, memory leaks, and llbitmap percpu_ref handling.
• Netfilter / nf_tables — add .abort_skip_removal flag for set types.
• RCU — fix rcu_read_unlock() deadloop caused by softirq.
• AMD NPU (accel/amdxdna) — Rolled back firmware to (1.0.0.63/1.0.0.166) so protocol 6 will work, fixing AMD NPU probe failure on Hawk Point / Strix / Strix Halo with updated pve-firmware (e.g. Ryzen AI HX 370). From Issue #1

proxmox-kernel 6.19.2 (unofficial) — Linux 6.19.2 + OpenZFS 2.4.1

proxmox-kernel-6.19 — 6.19.2-1~jaminmc1

Unofficial Proxmox kernel package based on Linux 6.19.2 and Ubuntu 6.19.0-6.6, built for Debian trixie.

What's changed

• Reworked from the latest kernel on git.proxmox.com. No new patches were needed. 6.19.0 RC versions had an apparmor issue that no longer needs patched. Used official Proxmox Rebasing script to rebase patches. Had to manually fix 0005 and 0008.
• Kernel: updated to 6.19.2, based on Ubuntu-6.19.0-6.6
• ZFS: updated to OpenZFS 2.4.1 - https://github.com/jaminmc/zfsonlinux/releases/tag/zfs-2.4.1-pve1 has the support deb's
• Patches:
  • Dropped apparmor: avoid null-deref when checking socket access — picked up upstream in Ubuntu-6.19.0-6.6
  • Dropped TCP revert series (patches 0014–0034) — none of the reverts are needed for 6.19.2
  • Rebased remaining patches (0004–0012) on top of Ubuntu-6.19.0-6.6
• Firmware list: updated for 6.19.2 — new entries for amdgpu/vce, ath12k, i915/xe3p_lpd, intel/vpu/vpu_60xx, rtl_bt/rtl8761cu, rtl_nic/rtl8125k, rtl_nic/rtl9151a; iwlwifi filenames updated to c101 series; corrected lantiq_gswip.ko module paths
• Build fix: set LOCALVERSION= in debian/rules to prevent setlocalversion from appending a + dirty suffix after patch application
• Build fix: patched SUBLEVEL in the kernel Makefile to match package versioning

Installation

Note: This is an unofficial build. Use at your own risk.

apt install ./linux-tools-6.19_6.19.2-1~jaminmc1_amd64.deb ./proxmox-{kernel,headers}-6.19.2*.deb ./pve-firmware_3.19-4-jaminmc_all.deb

EDIT: Updated firmware:

• Replaced with pve-firmware_3.19-4-jaminmc_all.deb, which should also resolve issue #1 on this kernel.

6.19.1 based on Ubuntu-6.19.0-5.5

This is the Ubuntu-6.19.0-5.5 kernel with all the Proxmox patches, and kernel config.

6.19.0 based on Ubuntu-6.19.0-3.3 without 6.17 TCP Regressions

Just a heads-up, this Kernel isn’t officially supported by Proxmox. It’s built on Ubuntu-6.19.0-3.3 with the patches from the older 6.17 version. Plus, it has the kernel flags for 6.19. I’ve also included a patch I made to address a specific issue I found with 6.18.

This release reverts the 4775ec9 commit that reverted changes in TCP that impacted PBS backups. I haven’t had a chance to test it to see if the problem that 6.17 had with PBS is still present in the 6.19 Kernel to know if the Regression is needed or not.

You can find the source code for the firmware here: https://github.com/jaminmc/pve-firmware/
NOTE: To use this Kernel, please disable the Bios Secure Boot.

6.19.0 based on Ubuntu-6.19.0-3.3 with 6.17 TCP Regressions

Just a heads-up, this Kernel isn’t officially supported by Proxmox. It’s built on Ubuntu-6.19.0-3.3 with the patche from the older 6.17 version. Plus, it has the kernel flags for 6.19. I’ve also included a patch I made to address a specific issue I found with 6.18.

This release includes the 4775ec9 commit that reverted changes in TCP that impacted PBS backups. I haven’t had a chance to test it to see if the problem that 6.17 had with PBS is still present in the 6.19 Kernel to know if the Regression is needed or not.

You can find the source code for the firmware here: https://github.com/jaminmc/pve-firmware/
NOTE: To use this Kernel, please disable the Bios Secure Boot.

6.18.0 based on Ubuntu-6.18.0-9.9 with 6.18 TCP

This Kernel is not a Proxmox official Kernel. It is based on the previous 6.17, with all patches except TCP regressions, and kernel flags for 6.18. There is one patch I made to fix the one problem I discovered with 6.18

This release does not have the 4775ec9 commit that rolls back changed in TCP that effected the PBS backups. It has not been tested to see if the problem that 6.17 had with PBS is in the 6.18 Kernel.

You will also need the firmware from here for this kernel: https://github.com/jaminmc/pve-firmware/releases/tag/3.18-1-jaminmc

NOTE: You will need to disable the Bios Secure Boot in order to use this Kernel.

6.18.0 based on Ubuntu-6.18.0-9.9 without the 6.17 TCP changes.

This Kernel is not a Proxmox official Kernel. It is based on the previous 6.17, with all patches and kernel flags for 6.18. There is one patch I made to fix the one problem I discovered with 6.18

This release has the 4775ec9 commit that rolls back changed in TCP that effected the PBS backups. So this has all the patched that 6.17 has in it, but adjusted.

You will also need the firmware from here for this kernel: https://github.com/jaminmc/pve-firmware/releases/tag/3.18-1-jaminmc

NOTE: You will need to disable the Bios Secure Boot in order to use this Kernel.