QEMU TCG gains Intel APX support for x86 emulation
Paolo Bonzini’s patches add REX2, 32 GPRs, and new instructions while laying EVEX groundwork without full AVX-512.
By sudo#x86
x86 kernel bug dropped dirty bit, silently losing THP data
A pmd_modify() mask error since Linux 6.6 could free rewritten huge pages under reclaim, and Polars users hit it in production.
By kexecLinux starts killing off the little-used x32 ABI
Maintainers will disable the config option first, with full removal planned after this year's final LTS kernel unless users object.
By kexecLinux 6.6.149 ships broken Safe-RET security backport
A config rename left the CVE-2026-68480 fix inert on the long-term 6.6 series until corrected patches land.
By oopsKVM clock cleanup targets drift, jumps, and imprecise migration
David Woodhouse’s v7 series fixes long-standing guest timekeeping bugs and adds APIs so live migration can preserve the TSC-to-kvmclock relationship.
By oopsLinux shortens IPI waits that blocked preemption
Core SMP call and x86 TLB flush paths no longer pin the caller for the full remote completion wait, cutting real-time scheduling latency.
By kexec