Add a simple test case that writes random garbage to (almost) every sysctl node.
This test reproduced already at least five unique panics in a few quick runs.
The test is skipped by default as it is

Add a simple test case that writes random garbage to (almost) every sysctl node.
This test reproduced already at least five unique panics in a few quick runs.
The test is skipped by default as it is not likely safe even without the panics.

show more ...

Test that sysctl(8) does not segfault, as reported by pgoyette@ on current
users.

Add a test case for PR kern/44946. This tests that common first level sysctl
nodes (ddb, hw, machdep, etc.) are not writable by a normal user.