I must misunderstand something about wait (sh command), but I'm not sure what: why does wait return 127 for an existing process?
$ PM=31309;kill -HUP $PM; echo $?; ps -p $PM; wait $PM; echo $?; ps -p $PM 0 PID TT STAT TIME COMMAND 31309 p0 S 0:00.03 ../libpmilter/t-pmilter-1 -r m=550 127 PID TT STAT TIME COMMAND 31309 p0 S 0:00.03 ../libpmilter/t-pmilter-1 -r m=550 $ wait $PM; echo $? 127 $ kill -0 $PM;echo $? 0 (OpenBSD 6.8) I guess the (multi-threaded) process is in some "weird" state? PS: it seems I can't attach a debugger either: $ egdb -p $PM ../libpmilter/t-pmilter-0 GNU gdb (GDB) 7.12.1 ... Reading symbols from ../libpmilter/t-pmilter-0...done. Attaching to program: /home/ca/sm-9/openbsd-111/libpmilter/t-pmilter-0, process 31309 ptrace: Operation not permitted. PPS: the problem is extremely hard to reproduce: running the single functional test never causes the problem, so far it happens only if many other tests have been run before (which takes almost 2 hours). -- Address is valid for this mailing list only, please do not reply to it direcly, but to the list.
