[Bug 273607] ktrace(1) doesn't log some system calls

From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 06 Sep 2023 20:07:25 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=273607

Mark Johnston <markj@FreeBSD.org> changed:

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                 CC|                            |markj@FreeBSD.org

--- Comment #1 from Mark Johnston <markj@FreeBSD.org> ---
That's expected.  On most platforms clock_gettime() is implemented by reading
the vDSO page published by the kernel.  See lib/libc/sys/clock_gettime.c. 
ptrace and dtrace also won't observe such calls.

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