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3 daysdocs: drop the link-drop investigation writeupuser1-136/+0
4 daysdocs: link-drop investigation resolved - drops are self-healing nowuser1-160/+106
Rewrite the notes from 'open / not root-caused' to the resolution: the socket never mysteriously dies; every producible drop signature is the emulator process dying silently (SIGPIPE on console echo after a hub restart, terminal death/HUP/stray quit keys in windowed mode - which exactly explains the 'only when idle' correlation - or a guest $ED poweroff), plus observation artifacts in the original session's tooling. Records the fixes shipped on both sides (emulator link auto-reconnect + SIGPIPE ignore + $ED logging; hub eof-vs-error logging, kept stderr, EBUSY guard), the honest spawn-mode caveat, and what's still worth doing.
4 daysdocs: investigation notes for the idle link-socket drop (open bug)user1-0/+190