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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