Oracle Company fourth functional update for the kernel , positioned for use in the Oracle Linux distribution as an alternative to the regular package with the kernel from Red Hat Enterprise Linux. The kernel is available for x86_64 and ARM64 (aarch64) architectures. The source code for the kernel, including the breakdown into individual patches, in the public Oracle Git repository.
Unbreakable Enterprise Kernel 5 is based on the kernel (UEK R4 was based on the 4.1 kernel, and on 5.4) which is supplemented with new features, optimizations and fixes, as well as tested for compatibility with most applications running on RHEL, and specially optimized to work with industrial software and Oracle hardware. Installation and src packages with UEK R5U4 kernel for Oracle Linux 7 (there are no barriers to using this kernel in similar versions of RHEL, CentOS and Scientific Linux).
Key :
- Added support for Process Virtual Address Space Reservation (Process Virtual Address Space Reservation), which improves the stability of Oracle DBMS when Address Space Layout Randomization (ASLR) is enabled.
- NFS fixes and optimizations related to page cache access, RPC call handling, and NFSv4 client support have been carried over from recent mainstream releases. Fixed issues with NFS over OCSF2.
- Enhanced TCP stack diagnostics, added support for eBPF-based tracepoints, and reduced tracing overhead.
- Ported new patches from the 5.6 kernel to protect against Specter v1 vulnerabilities.
- Updated device drivers, including new driver versions for BCM573xx (bnxt_en), Intel Ethernet Switch Host Interface (fm10k), Intel Ethernet Connection XL710 (i40e), Broadcom MegaRAID SAS (megaraid_sas), LSI MPT Fusion SAS 3.0 (mpt3sas), QLogic Fiber Channel HBA (qla2xxx), Microsemi Smart Family Controller (smartpqi), Intel Volume Management Device (vmd), and Mware Virtual Machine Communication Interface (vmw_vmci).
Source: opennet.ru