Srinivas Narayana led a remote session about extending
Agni to prove the correctness of
the BPF verifier's handling of different execution paths as part of the Linux Storage,
Filesystem, Memory Management, and BPF Summit. The problem of ensuring the correctness of path exploration
is much more difficult than the problem of
ensuring the correctness of arithmetic operations
(which was
the subject of the previous session), however. Narayana's plan to
tackle the problem makes use of a mixture of specialized techniques - and may need some assistance from the BPF developers to make it feasible at all.
https://lwn.net/Articles/1021825/
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