Bug 844746

Created attachment 601543 [details]
build.log

Be interesting to see what "signal" it got.  If it segfaulted,
what's the stack trace?

This bug appears to have been reported against 'rawhide' during the Fedora 19 development cycle.
Changing version to '19'.

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I reopen this problem as ocaml-ocamlnet never built on ppc64/ppc64le.

I tested ocaml-ocamlnet-4.0.4-4.fc24 on ppc64le and got following errors:
make[1]: Entering directory '/builddir/build/BUILD/ocamlnet-4.0.4/src/netunidata'
ocamlfind ocamldep   *.ml *.mli >depend || { rm -f depend; exit 1; }
../../Makefile.rules:191: recipe for target 'depend' failed
make[1]: Leaving directory '/builddir/build/BUILD/ocamlnet-4.0.4/src/netunidata'

These two commands trigger a problem:
ocamlfind ocamldep netmappings_jp.ml
ocamlfind ocamldep netmappings_kr.ml

The end of strace ocamlfind ocamldep netmappings_jp.ml gives:
rt_sigaction(SIGINT, {SIG_IGN, [], 0}, {0x10077c10, [], 0}, 8) = 0
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x3fff9e873e00) = 11981
waitpid(11981, [{WIFSIGNALED(s) && WTERMSIG(s) == SIGSEGV && WCOREDUMP(s)}], 0) = 11981
--- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_DUMPED, si_pid=11981, si_uid=0, si_status=SIGSEGV, si_utime=1, si_stime=0} ---
rt_sigaction(SIGINT, {0x10077c10, [], 0}, {SIG_IGN, [], 0}, 8) = 0
write(1, "ocamldep.opt got signal and exit"..., 35ocamldep.opt got signal and exited
) = 35
exit_group(2)                           = ?
+++ exited with 2 +++

and we have also a SEGFAULT signaled
[150440.087157] ocamldep.opt[11981]: unhandled signal 11 at 00003fffeb9effe0 nip 00000000100a6cd0 lr 00000000100acdbc code 30002

In the core I can see:
Core was generated by `ocamldep.opt netmappings_jp.ml '.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x0000000010069624 in camlHashtbl__replace_1118 ()



Using gdb with ocamldep.opt netmappings_jp.ml gives:
Program received signal SIGSEGV, Segmentation fault.
0x0000000010069624 in camlChar__chr_1010 ()

(gdb) backtrace
#0  0x0000000010069624 in camlChar__chr_1010 ()
#1  0x000000001001fb88 in camlLexer__char_for_decimal_code_1094 ()
#2  0x0000000010020da8 in camlLexer____ocaml_lex_string_rec_1160 ()
#3  0x00000000100211e4 in camlLexer__string_1159 ()
#4  0x0000000010020ddc in camlLexer____ocaml_lex_string_rec_1160 ()
#5  0x00000000100211e4 in camlLexer__string_1159 ()
#6  0x0000000010020ddc in camlLexer____ocaml_lex_string_rec_1160 ()
...

#52372 0x0000000010020ddd in camlLexer____ocaml_lex_string_rec_1160 ()
#52373 0x00000000100211e5 in camlLexer__string_1159 ()
#52374 0x0000000010020ddd in camlLexer____ocaml_lex_string_rec_1160 ()
#52375 0x00000000100211e5 in camlLexer__string_1159 ()
#52376 0x00000000100227bd in camlLexer____ocaml_lex_token_rec_1156 ()
#52377 0x0000000010023939 in camlLexer__token_1155 ()
#52378 0x0000000010021e45 in camlLexer____ocaml_lex_token_rec_1156 ()
#52379 0x0000000010023939 in camlLexer__token_1155 ()
#52380 0x00000000100239cd in camlLexer__token_with_comments_1224 ()
#52381 0x000000001001f211 in camlLexer__loop_1252 ()
#52382 0x0000000010023a6d in camlLexer__token_1237 ()
#52383 0x000000001006e6b1 in camlParsing__loop_1076 ()
#52384 0x000000001006ef8d in camlParsing__yyparse_1071 ()
#52385 0x000000001004432d in camlParser__use_file_3544 ()
#52386 0x000000001000610d in caml_apply2 ()
#52387 0x000000001001e6f5 in camlParse__wrap_1012 ()
#52388 0x0000000010006d09 in camlOcamldep__parse_use_file_as_impl_1252 ()
#52389 0x0000000010011f35 in camlPparse__file_1077 ()
#52390 0x000000001000868d in camlOcamldep__read_parse_and_extract_1239 ()
#52391 0x0000000010008765 in camlOcamldep__ml_file_dependencies_1250 ()
#52392 0x0000000010008fb1 in camlOcamldep__file_dependencies_as_1274 ()
#52393 0x0000000010009045 in camlOcamldep__file_dependencies_1278 ()
#52394 0x0000000010090ba1 in camlArg__parse_argv_dynamic_1078 ()
#52395 0x0000000010090e05 in camlArg__parse_1140 ()
#52396 0x000000001000a021 in camlOcamldep__entry ()
#52397 0x0000000010002a65 in caml_program ()
#52398 0x00000000100bdb51 in caml_start_program ()
#52399 0x00000000100be2c4 in caml_main (argv=0x3fffb7a31000) at startup.c:191
#52400 0x00000000100020fc in main (argc=<optimized out>, argv=<optimized out>)
    at main.c:54

Can you try raising the stack limit.  The default on ppc64 is
far too low to run OCaml programs.  Example:

http://pkgs.fedoraproject.org/cgit/rpms/ocaml.git/tree/ocaml.spec#n217

You got it.
I added changes in ocaml-ocamlnet.spec to raise stack limit in the same way it is done in ocaml.spec and ppc64/ppc64le builds are successful now.

http://ppc.koji.fedoraproject.org/koji/taskinfo?taskID=3298369

This is fixed in Rawhide / OCaml 4.04.  Also the raised
stack limits no longer seem to be necessary.