Subj : The trouble with the new uretprobes
To   : All
From : LWN.net
Date : Thu Jan 23 2025 23:00:07

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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