testsuite/tests/lib-threads/pr5325.ml raises exception on Unix.shutdown #7367
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Comment author: @xavierleroy This seems to be a Minix3 bug in their implementation of shutdown(). OCaml's Unix.shutdown works fine under Linux, OS X, various BSDs, Cygwin, and Win32/Winsock, so it is quite unlikely the bug is on OCaml's side. Please reopen this PR if you have evidence of the problem on any platform other than Minix. |
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Original bug ID: 7367
Reporter: pmetras
Status: resolved (set by @xavierleroy on 2017-02-16T08:11:09Z)
Resolution: not a bug
Priority: normal
Severity: minor
Platform: i386
OS: Minix3
OS Version: 3.4.0
Category: standard library
Monitored by: @gasche
Bug description
For test testsuite/tests/lib-threads/pr5325.ml, the problem occurs with the call "Unix.shutdown s Unix.SHUTDOWN_SEND". I was unable to issue a shutdown command on Minix3 from OCaml. I've read the code multiple times and I don't understand why it does not work. Calling shutdown() from C code is working correctly, according to /usr/tests/minix-posix/test56 from Minix3 test suite.
The compilation command used by the test is "../byterun/ocamlrun ../ocamlc -g -nostdlib -I ../stdlib -w a -vmthread -I ../otherlibs/threads -I ../otherlibs/unix unix.cma threads.cma tests/lib-threads/pr5325.ml -o program"
It raises a Unix.Unix_error when run with "../byterun/ocamlrun -b ./program"
Fatal error: exception Unix.Unix_error(2, "shutdown", "")
Raised by primitive operation at unknown location (inlined)
Called from file "pr5325.ml", line 63, characters 2-31
If the call to Unix.shutdown is removed, the test succeeds, but that's not game.
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