Phase 6.2: async outbound connect — eliminate 3s vCPU stall#74

Closed

dpsoft wants to merge 11 commits intosmoltcp-passt-port-phase6.1-half-closefrom

smoltcp-passt-port-phase6.2-async-connect

Commits on May 5, 2026

feat(slirp): non-blocking connect — Connecting state for in-flight handshakes
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feat(slirp): EPOLLOUT-driven async connect completion (relay_pending_connects)
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test(network): pin tcp_connect_async_eventual_rst_on_failure
dpsoft
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feat(slirp): CONNECT_TIMEOUT reaping for stuck Connecting flows
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bench(network): process_syn_during_pending_connects (Phase 6.2 baseline)
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chore(slirp): Phase 6.2 validation gate — all gates green
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fix(bench): drop unused Ipv4Address import; qualify the one use site
dpsoft
committed