Marshaling of custom blocks and threads

[Jocelyn Serot <jserot@lasmea.univ-bpclermont.fr>]

Hello,

Can s/o please confirm whether the module Marshal (and especially its
usage to serialize custom blocks) is thread-safe in Ocaml 3.0 ?
I remember reading sth about a pb with bytecode threads and marshaling
in a previous version of Ocaml but cannot determine surely whether
the pb has been fixed since.

The reason i ask follows :  i have a program with (bytecode) threads
exchanging data (float arrays)  with Marshal.to_string/ThreadUnix.write and
ThreadUnix.read/Marshal.from_string.
This program works ok for small data sets (typically less than 100
floats) but crashes when the array size increases.

Cheers,

Jocelyn

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