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Peter, I didn't see your post until after I sent mine. Anyway, I forgot to attach the trace I made and referred to in my post, sorry. (It's late...) I looked at your trace. > I said: > > In my trace (not Peter's) there are also some lines like: > > 324 16458452 [main] bash 1048 > fhandler_base::set_no_inheritance: DuplicateHandle failed, > The parameter is incorrect. > 237 16458689 [main] bash 1048 > fhandler_base::set_close_on_exec: set close_on_exec for > /dev/console to 1 In your *new* trace there are the same trace (on line 176632) in the 'zone' between the fork() and the parent-shell exit decision point of your most recent trace. Did you update your cygwin since your last run? Perhaps its just an artifact? The set happens 4 times in your trace: 1415 34111305 [main] bash 1696 fcntl_worker: 0 = fcntl (1, 1, 0x0) 484 34111789 [main] bash 1696 fhandler_base::set_no_inheritance: DuplicateHandle failed, Win32 error 87 121 34111910 [main] bash 1696 fhandler_base::set_close_on_exec: set close_on_exec for /dev/console to 1 933 34112038 [main] bash 456 dtable::dup2: 1 = dup2 (3, 1) 122 34112160 [main] bash 456 close: close (3) 119 34112279 [main] bash 456 fhandler_base::close: closing '/dev/null' handle 0x338 126 34112405 [main] bash 456 close: 0 = close (3) 244 34112649 [main] bash 456 spawnve: spawnve (/usr/bin/expr, expr, A059278) 905 34112815 [main] bash 1696 fhandler_base::set_no_inheritance: DuplicateHandle failed, Win32 error 87 123 34112938 [main] bash 1696 fcntl_worker: 0 = fcntl (10, 2, 0x1) 123 34113061 [main] bash 1696 dtable::dup2: dup2 (2, 1) 125 34113186 [main] bash 1696 build_fh_pc: fh 0x61781A80 121 34113307 [main] bash 1696 fhandler_base::set_flags: flags 0x10002, supplied_bin 0x0 119 34113426 [main] bash 1696 fhandler_base::set_flags: O_TEXT/O_BINARY set in flags 0x10000 907 34113556 [main] bash 456 spawn_guts: spawn_guts (3, /usr/bin/expr) Hmmm. -bogdan
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