RedPanda kernel - Changelogs
Artecxyz<==== Date - 15/09/2026 ====>
• Updated ADIOS from v3.2.0 (stable) to v3.3.0 (testing)
• Import Boeffla Wakelock Blocker driver v1.1.0
• Prevent Unicode normalization bypass by rejecting empty decomposition before state change
• Reduce VM stat update frequency from 1s to 20s to lower overhead
• Disable self-hosted debug on arm64 by default to allow external JTAG debugger use
• Increase alarmtimer safety margin to 5ms to prevent wakeup issues
• Restrict the default IRQ affinity mask to CPU0 only, since IRQs only run on the first CPU set
• Fix initial utilization calculation by using the proper weight function instead of the raw load weight, preventing a massive inflation on 64-bit
• Add separate up/down frequency transition rate limits to schedutil, with defaults set to 500us up and 1000us down for better performance and power
• Add NT synchronization primitive emulation module (ntsync), great for gaming/Wine
• Enable container runtime support by turning on SYSVIPC, POSIX MQUEUE, USER/PID/IPC namespaces, and netfilter targets
• Disable watermark boosting by default to prevent page thrashing and system freezes.
• Reduce swap readahead cluster size to 1 to lower unnecessary I/O
• Disable unhandled interrupt detection via noirqdebug kernel cmdline to reduce overhead
• Remove an unnecessary memory barrier from the generic idle loop to avoid performance impact
• Disable unprivileged BPF by default to improve security
• Use the lower frequency when the target is less than 20% above it, avoiding unnecessary frequency hops and saving
• Tune TCP pacing ratios and enable SYN cookies for better throughput
• Remove throughput optimization that kept tasks on big CPUs
• Reduce task migration by 85% so the scheduler moves tasks between cores more often
• Fix load weight update for idle scheduling tasks to ensure correct load and vlag updates
<==== Date - 28/08/2026 ====>
• Import BORE Scheduler v5.9.7 (Burst-Oriented Response Enhancer)
• Import ADIOS IO Scheduler v3.2.0 (Improves IO read/write performance)
• set "lz4" as default compression algorithm
• lz4 v1.10.0 upstream + LZ4K/LZ4KD
• BBR3 Congestion control with ECN Support
• Import Baseband Guard for enhanced modem safety
• Memory and Scheduler Optimization
• modules: force loading for kernel modules encountering symbol version mismatches
• and there's more...