• The 6.15 kernel has been released

    From LWN.net@86:200/23 to All on Mon May 26 06:40:08 2025
    Linus has released the 6.15 kernel, as
    expected.

    So this was delayed by a couple of hours because of a last-minute
    bug report resulting in one new feature being disabled at the
    eleventh hour, but 6.15 is out there now.

    Significant changes in 6.15 include smarter timer-ID assignment to make checkpoint/restore operations more reliable, the ability
    to read status information from a pidfd after the process in question has
    been reaped, the PIDFD_SELF
    special pidfd value, nested
    ID-mapped mounts, zero-copy network-data reception via io_uring, The ability
    to read epoll events via io_uring, resilient
    queued spinlocks for BPF programs, guard-page enhancements allowing them to be placed in file-backed memory areas and for user space to detect their
    presence, the once-controversial fwctl
    subsystem, the optional sealing of some
    system mappings, and much more.

    See the LWN merge-window summaries (part 1, part 2) and the in-progress KernelNewbies 6.15 page for
    more information.

    https://lwn.net/Articles/1022457/
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