{"record":{"id":"1540101b01a9c153","repo":"gastownhall/beads","slug":"verify-proxy-pid-d-w","errorCode":null,"errorMessage":"verify proxy pid %d: %w","messagePattern":"verify proxy pid (.+?): %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"warning","filePath":"internal/storage/dbproxy/proxy/endpoint.go","lineNumber":598,"sourceCode":"\t\treturn adoptionResult{status: adoptionNoRecord}\n\t}\n\tif err := pf.ValidateV2(pidfile.KindProxy); err != nil {\n\t\tif errors.Is(err, pidfile.ErrLegacySchema) {\n\t\t\treturn adoptionResult{status: adoptionLegacy, pidfile: pf, err: err}\n\t\t}\n\t\treturn adoptionResult{status: adoptionMalformed, pidfile: pf, err: err}\n\t}\n\n\tmatched, err := verifyProcessIdentity(pf.Pid, procid.Token(pf.Birth))\n\tif err != nil {\n\t\t// Discovery must not turn an identity-probe failure into a fatal\n\t\t// pidfile I/O error. In particular, Windows ERROR_ACCESS_DENIED on a\n\t\t// recycled PID belongs in this non-adopting path; proxy.lock still\n\t\t// gates quarantine and replacement.\n\t\treturn adoptionResult{\n\t\t\tstatus:  adoptionUnverifiable,\n\t\t\tpidfile: pf,\n\t\t\terr:     fmt.Errorf(\"verify proxy pid %d: %w\", pf.Pid, err),\n\t\t}\n\t}\n\tif !matched {\n\t\treturn adoptionResult{status: adoptionStaleDead, pidfile: pf}\n\t}\n\n\texpectedRootID, err := resolveRootIdentity(rootDir)\n\tif err != nil {\n\t\treturn adoptionResult{status: adoptionUnverifiable, pidfile: pf, err: err}\n\t}\n\tsecret, err := readControlSecret(rootDir)\n\tif err != nil {\n\t\treturn adoptionResult{status: adoptionUnverifiable, pidfile: pf, err: err}\n\t}\n\treply, err := identity.Identify(\"127.0.0.1\", pf.ControlPort, secret, identityProbeTimeout)\n\tif err != nil {\n\t\treturn adoptionResult{status: adoptionIdentityMismatch, pidfile: pf, err: err}\n\t}","sourceCodeStart":580,"sourceCodeEnd":616,"githubUrl":"https://github.com/gastownhall/beads/blob/71377f276968b452ee607177637970a4ff888584/internal/storage/dbproxy/proxy/endpoint.go#L580-L616","documentation":"readAndDial wraps failures from verifyProcessIdentity when probing the OS identity (PID + birth token) of the process recorded in the proxy pidfile. Instead of treating this as a stale/dead record, discovery classifies it as adoptionUnverifiable: the recorded PID may be live but cannot be safely confirmed, so the proxy is not adopted.","triggerScenarios":"pf.ValidateV2 succeeds and verifyProcessIdentity(pf.Pid, pf.Birth) returns an OS-level probe error — e.g. Windows ERROR_ACCESS_DENIED on a recycled PID, or OpenProcess/permission failures — before any identity matching can occur.","commonSituations":"PID was recycled by an unrelated process owned by another user (Windows access denied); running bd across user boundaries or in a container where the recorded PID is not visible; hardened security software denying process opens.","solutions":["Check whether the PID in the pidfile belongs to a live process (ps -p <pid> / Task Manager) and stop the old proxy if it does","Re-run under the same user that started the proxy, or align container/user namespaces","Delete/quarantine the pidfile (bd will quarantine under proxy.lock and spawn a fresh proxy)","Inspect the wrapped OS error via errors.Unwrap for the specific errno and address it (permissions, PID visibility)"],"exampleFix":"// before\nmatched, err := verifyProcessIdentity(pf.Pid, procid.Token(pf.Birth))\n// caller side\ndiscovery := readAndDial(root)\nif discovery.status == adoptionUnverifiable {\n    log.Printf(\"cannot verify pid %d: %v; refusing to adopt\", discovery.pidfile.Pid, discovery.err)\n}\n// after: explicitly test identity before relying on an existing proxy\nif pf, _ := pidfile.Read(root, pidfile.FileName(\"proxy\")); pf != nil && !pidMatches(pf.Pid, pf.Birth) {\n    quarantineRecord(root, PIDFileName, time.Now()) // force fresh spawn\n}","handlingStrategy":"fallback","validationCode":null,"typeGuard":"func isUnverifiable(d adoptionResult) bool {\n    return d.status == adoptionUnverifiable && d.err != nil\n}","tryCatchPattern":"discovery := readAndDial(root)\nif isUnverifiable(discovery) {\n    // do NOT adopt; let proxy.lock-gated quarantine + fresh spawn handle it\n    if err := quarantineForSpawn(root, discovery); err != nil { return err }\n}","preventionTips":["Run all bd commands for a workspace as the same OS user","Avoid sharing one workspace between host and container with different PID views","On Windows, keep workspace paths out of multi-user temp dirs","Treat an unverifiable record as stale: let the normal quarantine-and-spawn path replace it"],"tags":["process-identity","pidfile","windows","permissions"],"backgroundTag":"process-identity-unverifiable","analyzedSha":"71377f276968b452ee607177637970a4ff888584","analyzedAt":"2026-08-30T18:55:39.744Z","schemaVersion":2},"datasetVersion":"2026-08-30T23:17:21.991Z"}