{"record":{"id":"64bb3ffb374d8616","repo":"wavetermdev/waveterm","slug":"failed-to-daemonize-w","errorCode":null,"errorMessage":"failed to daemonize: %w","messagePattern":"failed to daemonize: %w","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"critical","filePath":"pkg/jobmanager/jobmanager.go","lineNumber":79,"sourceCode":"\t}\n\terr = MakeJobDomainSocket(clientId, jobId)\n\tif err != nil {\n\t\treturn err\n\t}\n\n\tgo func() {\n\t\tdefer func() {\n\t\t\tpanichandler.PanicHandler(\"JobManager:processInputQueue\", recover())\n\t\t}()\n\t\tWshCmdJobManager.processInputQueue()\n\t}()\n\n\tfmt.Fprintf(readyFile, JobManagerStartLabel+\"\\n\")\n\treadyFile.Close()\n\n\terr = daemonize(clientId, jobId)\n\tif err != nil {\n\t\treturn fmt.Errorf(\"failed to daemonize: %w\", err)\n\t}\n\n\tgo func() {\n\t\tdefer func() {\n\t\t\tpanichandler.PanicHandler(\"JobManager:keepalive\", recover())\n\t\t}()\n\t\tticker := time.NewTicker(1 * time.Hour)\n\t\tdefer ticker.Stop()\n\t\tfor range ticker.C {\n\t\t\tlog.Printf(\"keepalive: job manager active\\n\")\n\t\t}\n\t}()\n\n\treturn nil\n}\n\nfunc (jm *JobManager) processInputQueue() {\n\tfor data := range jm.InputQueue.C() {","sourceCodeStart":61,"sourceCodeEnd":97,"githubUrl":"https://github.com/wavetermdev/waveterm/blob/a4447c1563b2df285ab89e76c82f91e1a1a49c1e/pkg/jobmanager/jobmanager.go#L61-L97","documentation":"After signaling readiness via the readyFile, SetupJobManager calls daemonize to detach the job manager into a background daemon process. This error wraps any failure from daemonize (fork/exec/session setup failure), meaning the job manager could not run detached.","triggerScenarios":"daemonize's underlying exec/re-exec fails — binary path not resolvable, fork resource limits hit, setsid failure, or the re-executed process cannot re-open the domain socket path.","commonSituations":"Running inside restricted containers/sandboxes that forbid setsid or double-fork (some seccomp profiles); low process/fd limits; readonly /tmp or socket path collisions from a stale previous run.","solutions":["Inspect the wrapped error from daemonize for the concrete syscall failure (setsid vs exec vs fork)","Clear stale job domain sockets/lock files from a previous crashed run and retry","Run in an environment permitting process creation (check ulimit -u, seccomp/apparmor policies)","Verify the wsh executable path is valid and the binary can re-exec itself"],"exampleFix":"// before\nerr = daemonize(clientId, jobId)\n// after\nerr = daemonize(clientId, jobId)\nif err != nil {\n    log.Printf(\"daemonize failed: %v; running in foreground instead\", err)\n    // fall back to foreground run or surface a clear user-facing message\n}","handlingStrategy":"try-catch","validationCode":"// preflight: can we create processes and the socket path?\nif err := unix.Setsid(); !errors.Is(err, unix.EPERM) == false {\n    return fmt.Errorf(\"sandbox forbids setsid; daemonize will fail\")\n}\nos.RemoveAll(jobSocketPath(clientId, jobId)) // clear stale sockets","typeGuard":null,"tryCatchPattern":"if err := jobmanager.SetupJobManager(cid, jid, pub, tok, rf); err != nil {\n    if strings.Contains(err.Error(), \"failed to daemonize\") {\n        log.Printf(\"daemonize failed: %v; falling back to foreground mode\", err)\n        // run foreground or surface sandbox hint to user\n        return\n    }\n    return err\n}","preventionTips":["Run daemons in environments allowing fork/setsid (check seccomp/apparmor)","Clean stale domain sockets before restart","Check ulimit -u and fd limits in constrained hosts","Verify the executable path is resolvable for re-exec"],"tags":["daemonize","process","unix"],"backgroundTag":"daemon-start-failed","analyzedSha":"a4447c1563b2df285ab89e76c82f91e1a1a49c1e","analyzedAt":"2026-09-01T15:26:23.972Z","contentChangedAt":null,"schemaVersion":2},"datasetVersion":"2026-09-08T10:18:20.063Z"}