summary: When a file was first open as NON BUFFERED, and then we change it into FULL BUFFERED, this will take no effect (PR6719) description: '' contact: Petr Muller component: - glibc test: ./runtest.sh framework: shell recommend: - glibc - expect - tcl - gcc duration: 30m extra-summary: /tools/glibc/Regression/setvbuf-to-full-not-working extra-task: /tools/glibc/Regression/setvbuf-to-full-not-working