BPF proposal would let programs sleep and run kernel threads
Programs could wait on a queue they build themselves, and spawn kernel threads for reclaim and network work they scale and place.
By oops#scheduling
Kernel series peels stop_machine off CPU teardown for RT and nohz_full
Frederic Weisbecker’s 47-patch rework lets most hot-unplug steps run without freezing every CPU, clearing a path for isolated and real-time partitions.
By kexecLinux NUMA series unblocks promotion of hot slow-tier memory
Filters meant to calm socket placement were stranding hot pages on CXL, and Meta patches separate the two jobs.
By kexecGoogle floats stealable PING futexes for Linux
RFC would trade strict PI handoff for lock stealing and proxy execution; maintainers call it premature and flag lockup risks.
By kexecAxboe RFC: io_uring hands off thread identity on actual block
Instead of always punting blockable ops to io-wq, the series runs them inline and migrates only the user-visible identity if the submitter sleeps.
By oopsProxy execution and sched_ext move toward coexistence
Andrea Righi’s v13 series would end the build-time ban that forced kernels to pick one feature or the other.
By kexecKernel fix stops tasks hanging forever on muxed I/O regions
A 16-year-old lost-wakeup race left processes unkillable after brief SMBus and similar contention, reachable from ordinary sensor reads.
By oopssched_ext and proxy execution no longer mutually exclusive
BPF schedulers can opt into handling mutex-blocked donors so one kernel can ship both features.
By kexec