{"record":{"id":"27deb601306354b8","repo":"oven-sh/bun","slug":"unexpected-error-while-reloading-errno","errorCode":null,"errorMessage":"Unexpected error while reloading: errno {}","messagePattern":"Unexpected error while reloading: errno (.+?)","errorType":"panic","errorClass":null,"httpStatus":null,"severity":"error","filePath":"src/bun_core/util.rs","lineNumber":4490,"sourceCode":"            p = p.add(1);\n        }\n        let mut envp: Vec<*const core::ffi::c_char> = dupe_env.iter().map(|z| z.as_ptr()).collect();\n        envp.push(core::ptr::null());\n\n        // we must clone selfExePath in case argv[0] was not an absolute path\n        let exec_path = self_exe_path().expect(\"unreachable\").as_ptr();\n\n        libc::execve(exec_path, newargv.as_ptr().cast(), envp.as_ptr().cast());\n        // execve only returns on error.\n        let errno = std::io::Error::last_os_error().raw_os_error().unwrap_or(-1);\n        if may_return {\n            crate::output::pretty_errorln(format_args!(\n                \"error: Failed to reload process: errno {}\",\n                errno\n            ));\n            return;\n        }\n        panic!(\"Unexpected error while reloading: errno {}\", errno);\n    }\n\n    #[cfg(not(any(unix, windows)))]\n    {\n        // Bun only targets POSIX + Windows; any other target\n        // is a build-time error, not a runtime panic.\n        let _ = (clear_terminal, may_return);\n        compile_error!(\"unsupported platform for reload_process\");\n    }\n}\n\n// ── spawn_sync_inherit ────────────────────────────────────────────────────\n/// Minimal \"spawn argv, inherit stdio, wait\" used by crash_handler's\n/// symbolizer. Port of the subset of `bun.spawnSync` needed at tier-0.\n/// Full `bun.spawnSync` (with buffered stdio, env, cwd) is in bun_spawn.\n#[derive(Debug, Clone, Copy)]\npub struct SpawnStatus {\n    pub(crate) code: i32,","sourceCodeStart":4472,"sourceCodeEnd":4508,"githubUrl":"https://github.com/oven-sh/bun/blob/8c5296ac459e8252d3cd702f3fbcbb0c249d95d5/src/bun_core/util.rs#L4472-L4508","documentation":"Error \"Unexpected error while reloading: errno {}\" thrown in oven-sh/bun.","triggerScenarios":"Thrown at src/bun_core/util.rs:4490 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"8c5296ac459e8252d3cd702f3fbcbb0c249d95d5","analyzedAt":"2026-08-16T08:01:58.794Z","schemaVersion":2},"datasetVersion":"2026-08-16T08:17:34.114Z"}