Worked on improving startup reliability for the apache/brpc repository by addressing a critical bug in the initialization of process IO. Focused on C++ system programming and error handling, the developer implemented a solution that logs a warning and gracefully manages failures when opening /proc/self/io during static initialization in read_proc_io. This approach prevents potential segmentation faults (SIGSEGV) that could occur during application startup, reducing crash risk in production environments. The update introduced defensive IO handling with minimal performance impact, enhancing both stability and observability. The work demonstrates careful attention to robust error management and system-level reliability in C++ codebases.