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Andrew Dunham e1738ea78e chirp: add a 10s timeout when communicating with BIRD (#5444) ... Prior to this change, if BIRD stops responding wgengine.watchdogEngine will crash tailscaled. This happens because in wgengine.userspaceEngine, we end up blocking forever trying to write a request to or read a response from BIRD with wgLock held, and then future watchdog'd calls will block on acquiring that mutex until the watchdog kills the process. With the timeout, we at least get the chance to print an error message and decide whether we want to crash or not. Updates tailscale/coral#72 Signed-off-by: Andrew Dunham <andrew@tailscale.com> Signed-off-by: Andrew Dunham <andrew@tailscale.com>		4 years ago
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chirp.go	chirp: add a 10s timeout when communicating with BIRD (#5444)	4 years ago
chirp_test.go	chirp: add a 10s timeout when communicating with BIRD (#5444)	4 years ago