Hi!
After the recent changes in hppa architecture Erlang virtual machine
fails to start (which leads to several FTBFS bugs in particular:
#559628, #559962, #559004).
The problem is that after vfork(), execve() fails to start a child
process. It sets errno to EMFILE. If I run erl under strace, it works
fine. Is it a bug in glibc, or in Erlang itself?
I'm giving a small excerpt from erts/emulator/sys/unix/sys.c file
where the failed execve(), the rest could be found in erlang
12.b.2.1-1 sources.
pid = vfork();
if (pid == 0) {
/* The child! */
/* Observe!
* OTP-4389: The child setup program (implemented in
* erl_child_setup.c) will perform the necessary setup of the
* child before it execs to the user program. This because
* vfork() only allow an *immediate* execve() or _exit() in the
* child.
*/
execve(child_setup_prog, cs_argv, new_environ);
_exit(1);
}
Cheers!
--
Sergei Golovan
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