• The trouble with the new uretprobes

    From LWN.net@1337:1/100 to All on Thu Jan 23 23:00:07 2025
    The trouble with the new uretprobes

    Date:
    Thu, 23 Jan 2025 22:55:41 +0000

    Description:
    A "uretprobe" is a dynamic, user-space tracepoint injected by the kernel
    into a running process; this document tersely describes their use. Among other things, uretprobes are used by
    the perf utility to time function calls. The 6.11 kernel saw a
    significant change to uretprobes that improved their performance, but that change is also creating trouble for some users. The best way to solve the problem is not entirely clear.

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    Link to news story:
    https://lwn.net/Articles/1005662/


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