From: Florian Hars <florian@hars.de>
To: ocsigen@inria.fr, caml-list@inria.fr
Subject: [Caml-list] BUG in unix.ml (was: strange errors when linking lwt.unix)
Date: Fri, 15 Mar 2013 10:18:56 +0100 [thread overview]
Message-ID: <5142E780.7060806@hars.de> (raw)
In-Reply-To: <CALScVYmU7zEXbgdS21gGrq8iFvgVs0FWieKipRE9WtOM+PxeEg@mail.gmail.com>
Am 14.03.2013 18:53, schrieb Sebastien Mondet:
> # Unix.system "date";;
> Thu Mar 14 08:48:27 EST 2013
> Exception: Unix.Unix_error (Unix.EINTR, "waitpid", "").
> #
That is just a bug in the unix library, Unix.system calls waitpid in
caml.inria.fr/cgi-bin/viewvc.cgi/ocaml/version/4.00/otherlibs/unix/unix.ml?view=markup#l849
instead of waitpid_non_intr
http://caml.inria.fr/cgi-bin/viewvc.cgi/ocaml/version/4.00/otherlibs/unix/unix.ml?view=markup#l1002
I get the same behaviour without lwt:
OCaml version 4.00.1
# #load "unix.cma";;
# Sys.set_signal 10 (Sys.Signal_handle
(fun _ -> print_endline "A perfect ten"));;
- : unit = ()
# Unix.system "sleep 20";;
A perfect ten
Exception: Unix.Unix_error (Unix.EINTR, "waitpid", "").
#
All I had to do is send a signal 10 to the ocaml process
from another shell.
It probably escaped notice so far because only lwt_unix does enough strange
things with signals in the default config to trigger it reliably.
- Florian.
next parent reply other threads:[~2013-03-15 9:18 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CAMu2m2Lt8oty_2mEQq8H1oV0-1Rjrf10ai543me9YxB1Nb5xfg@mail.gmail.com>
[not found] ` <CALScVY=c1M=HAqMeM7x4QrxDTZsn0rB=HcTsQYheYUOBSBFRUQ@mail.gmail.com>
[not found] ` <CALScVYnt-m-dRR41rBPo5R3xDx-81tMwBFbM3q+5p4gRqsQC9w@mail.gmail.com>
[not found] ` <CALScVYmU7zEXbgdS21gGrq8iFvgVs0FWieKipRE9WtOM+PxeEg@mail.gmail.com>
2013-03-15 9:18 ` Florian Hars [this message]
2013-03-15 10:02 ` oliver
2013-03-15 10:11 ` David House
2013-03-15 11:38 ` Jeremie Dimino
2013-03-15 12:43 ` oliver
2013-03-15 13:17 ` Jeremie Dimino
2013-03-15 13:28 ` oliver
2013-03-15 13:43 ` Jeremie Dimino
2013-03-15 13:24 ` Jeremie Dimino
2013-03-15 13:58 ` oliver
2013-03-15 14:05 ` oliver
2013-03-15 14:16 ` Jeremie Dimino
2013-03-15 14:18 ` oliver
2013-03-15 14:17 ` oliver
2013-03-15 14:27 ` oliver
2013-03-15 15:05 ` Jeremie Dimino
2013-03-15 15:11 ` oliver
2013-03-15 15:44 ` Gabriel Kerneis
2013-03-15 16:00 ` oliver
2013-03-15 16:12 ` Gabriel Kerneis
2013-03-15 16:25 ` oliver
2013-03-15 17:28 ` Jeremie Dimino
2013-03-15 15:16 ` oliver
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