[Bug 238837] init: Remove P_SYSTEM flag from PID 1 to allow easier debugging of init(8)

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=238837

Conrad Meyer <cem at freebsd.org> changed:

           What    |Removed                     |Added
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                 CC|                            |cem at freebsd.org

--- Comment #2 from Conrad Meyer <cem at freebsd.org> ---
If P_SYSTEM is removed from pid 1, is there *any* other process using it? 
Looks like anything created with kproc_create(), which kind of makes sense, but
we could/should also prevent debugging P_KPROC processes anyway (and that flag
is also set).

I'm not sure that debugging pid 1 without this flag set actually functions
correctly; init is pretty special.  Have you tried using gdb on it with this
patch?

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