Aucsfcgl.112 NET.v7bugs utzoo!duke!vax135!ucbvax!ucsfcgl!tef Fri Aug 29 02:02:46 1980 ptx bug There is a bug in the distributed version of ptx (permuted index) which may cause the program to hang unexpectedly. The code is a bit "unusual" as it is, but if an execl to the sort(1) program fails ptx falls through a switch case statement and a child process ends up up waiting for itself to exit (forever). The fix is left to the interested hacker.