{"record":{"id":"042271dac21bef55","repo":"GoogleContainerTools/skaffold","slug":"could-not-assign-job-object-w","errorCode":null,"errorMessage":"could not assign job object: %w","messagePattern":"could not assign job object: %w","errorType":"console","errorClass":null,"httpStatus":null,"severity":"error","filePath":"pkg/skaffold/kubectl/exec_windows.go","lineNumber":73,"sourceCode":"\tif _, err := windows.SetInformationJobObject(\n\t\thandle,\n\t\twindows.JobObjectExtendedLimitInformation,\n\t\tuintptr(unsafe.Pointer(&info)),\n\t\tuint32(unsafe.Sizeof(info))); err != nil {\n\t\treturn fmt.Errorf(\"could not set information job object: %w\", err)\n\t}\n\n\tif err := c.Cmd.Start(); err != nil {\n\t\treturn fmt.Errorf(\"could not start the command: %w\", err)\n\t}\n\n\tprocessHandle, err := getHandleFromProcess(c.Process)\n\tif err != nil {\n\t\treturn fmt.Errorf(\"could not get handle from process: %w\", err)\n\t}\n\n\tif err := windows.AssignProcessToJobObject(handle, processHandle); err != nil {\n\t\treturn fmt.Errorf(\"could not assign job object: %w\", err)\n\t}\n\n\tc.handle = handle\n\tgo func() {\n\t\t<-c.ctx.Done()\n\t\tc.Terminate()\n\t}()\n\n\treturn nil\n}\n\nfunc getHandleFromProcess(p *os.Process) (windows.Handle, error) {\n\t// os.Process contains an unexported processHandle struct, which contains\n\t// a `handle uintptr` field.\n\tv := reflect.ValueOf(p)\n\ti := reflect.Indirect(v)\n\n\tk := i.Kind()","sourceCodeStart":55,"sourceCodeEnd":91,"githubUrl":"https://github.com/GoogleContainerTools/skaffold/blob/a1189de023efc32d4b8e11f395acc678aa555011/pkg/skaffold/kubectl/exec_windows.go#L55-L91","documentation":"Start's final setup step assigns the started process to the Windows job object via AssignProcessToJobObject so it is killed when the job closes; this error wraps failure of that assignment. The process runs but is no longer guaranteed to be terminated together with its children on shutdown.","triggerScenarios":"windows.AssignProcessToJobObject(handle, processHandle) returns an error — access denied opening/assigning, the process has already exited, or the process is already part of an incompatible job (nested job limits on older Windows).","commonSituations":"Child exiting before assignment (fast-crashing binaries), Windows versions restricting nested job assignment, restricted service tokens, security software interfering with process/job manipulation.","solutions":["Fix the child process exiting immediately (validate it runs standalone) so assignment races don't occur","Update Windows / golang.org/x/sys to support nested job objects if the process is already in a job","Run with sufficient privileges; check access-denied in the wrapped error","Check AV/EDR interference; verify the parent's job object handle is still valid"],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":null,"typeGuard":null,"tryCatchPattern":"if err := c.Start(); err != nil {\n    if strings.Contains(err.Error(), \"could not assign job object\") {\n        log.Printf(\"warning: child not in job object; may outlive parent: %v\", err)\n        // optionally Terminate manually\n    }\n    return err\n}","preventionTips":["Ensure the child process lives long enough for assignment (fix fast-crash causes)","On Windows 8+, nested job assignment is supported; keep OS and x/sys current","Run under accounts with process-management rights","Manually kill the child on context cancellation if job assignment fails"],"tags":["windows","process","job-object"],"backgroundTag":"windows-job-object-creation-failed","analyzedSha":"a1189de023efc32d4b8e11f395acc678aa555011","analyzedAt":"2026-09-05T12:09:27.064Z","contentChangedAt":"2026-09-05T12:09:27.064Z","schemaVersion":2},"datasetVersion":"2026-09-12T17:17:11.597Z"}