Re: [PATCH v6 bpf-next 2/2] selftests/bpf: Add a kernel flag test for LSM bpf hook

On Mon, Mar 10, 2025 at 11:11 AM Blaise Boscaccy bboscaccy@linux.microsoft.com wrote: [...]

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We are blindly blocking all security_bpf() with kernel=true here, so any lskel load in parallel with this test may fail. On the other hand, existing tests only block some operations under certain conditions. For example, test_cgroup1_hierarchy.c only blocks operations for target_ancestor_cgid.

Does this make sense?

Not quite. This is only blocking security_bpf where kernel=true and pid=monitored_pid.

"test_progs -j" runs multiple threads within the process, so all the threads are within monotored_pid.

Thanks, Song