I'm contributing a bit to rjulia and I've run into some trouble creating
julia DataFrames from C in 0.5 (rc 1+1)
Creating a DataFrame from C like this:
jl_value_t *ans = jl_eval_string("DataFrame( Any[ 1:4, 5:8 ], [:a,:b] )");
worked in 0.4 as did
jl_function_t *func = jl_get_function(jl_main_module, "DataFrame");
jl_value_t *ans = jl_call2(func, (jl_value_t *)col_list, (jl_value_t
*)col_names);
assuming the DataFrames package had been loaded. col_list is an
Array{Any,1} and col_names is an Array{Symbol,1}.
In 0.5 rc 1+1 with DataFrames 0.7.7,
I get a very verbose error message:
signal (11): Segmentation fault: 11
while loading no file, in expression starting on line 0
gc_mark_stack at
/Users/osx/buildbot/slave/package_osx10_9-x64/build/src/gc.c:1239 [inlined]
gc_mark_task_stack at
/Users/osx/buildbot/slave/package_osx10_9-x64/build/src/gc.c:1275 [inlined]
gc_mark_task at
/Users/osx/buildbot/slave/package_osx10_9-x64/build/src/gc.c:1298
push_root at
/Users/osx/buildbot/slave/package_osx10_9-x64/build/src/gc.c:1426
gc_push_root at
/Users/osx/buildbot/slave/package_osx10_9-x64/build/src/gc.c:1179 [inlined]
gc_mark_module at
/Users/osx/buildbot/slave/package_osx10_9-x64/build/src/gc.c:1208
push_root at
/Users/osx/buildbot/slave/package_osx10_9-x64/build/src/gc.c:1419
...
As a positive control,
jl_value_t *ans = jl_eval_string("DataFrame()");
works in both 0.4 and 0.5.
Can anyone think of something that changed that might cause such a problem?
The "OutOfMemory" bug in 0.5 rc0 caused some similar trouble, so I'm
hoping that another (soon to be fixed) issue in 0.5 may be responsible
