Using the source I was finally able to figure out a method to repeatably trigger this heisenbug.
HOW TO REPEAT: 1. echo "set revert-all-at-newline on" > bug.inputrc 2. INPUTRC=bug.inputrc bash 3. ^P^U^N^M [Hold down control and type "punm".] Bash should die immediately with SIGABRT. DISCUSSION: The trick is to go up in the history (^P), edit a line (^U), but then go back to the bottom line (^N) and type any other command (or even nothing) before hitting return (^M). That makes readline try to undo the changes to the history, which fails because it frees an unallocated block. I have tested this with libreadline6 and the bug affects that shared library as well as bash's builtin readline. For example, you can trigger this bug using the python command line: 1. echo "set revert-all-at-newline on" > bug.inputrc 2. INPUTRC=bug.inputrc python 3. help 4. ^P^U^N^M [Hold down control and type "punm".] Python dies immediately. Since this bug affects it, shall I file a new bug report for libreadline as well? -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
