Segmentation Fault

I'm having a segmentation fault that I'm having a hard time producing a minimal example for. I have zero issues with my code when I do not load ArrayFire, but once loaded I will have seg faults for doing operations like `permutedims` and `getindex`. Below I can get my code consistently fail running using the `Interpolations` package, but my code is doing a too much to explain here. It seems like it might be related to indexing into memory that no longer exists, but I cannot prove this and not sure how to begin debugging.

```julia
ArrayFire v3.5.1 (CUDA, 64-bit Linux, build 0a675e8)
Platform: CUDA Toolkit 8, Driver: 384.69
[0] Tesla K20c, 4743 MB, CUDA Compute 3.5
-1- Quadro K2200, 4042 MB, CUDA Compute 5.0

signal (11): Segmentation fault
while loading /home/ju17693/projects/ASDF/test.jl, in expression starting on line 67
unknown function (ip: 0x7f1a4a85c2a2)
collect at ./array.jl:441
unknown function (ip: 0x7f194a85c182)
jl_call_fptr_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:339 [inlined]
jl_call_method_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:358 [inlined]
jl_apply_generic at /home/centos/buildbot/slave/package_tarball64/build/src/gf.c:1933
index_gen at /home/ju17693/.julia/v0.6/Interpolations/src/gridded/linear.jl:40
jl_call_fptr_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:339 [inlined]
jl_call_method_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:358 [inlined]
jl_apply_generic at /home/centos/buildbot/slave/package_tarball64/build/src/gf.c:1933
jl_apply at /home/centos/buildbot/slave/package_tarball64/build/src/julia.h:1424 [inlined]
jl_f__apply at /home/centos/buildbot/slave/package_tarball64/build/src/builtins.c:426
index_gen at /home/ju17693/.julia/v0.6/Interpolations/src/b-splines/indexing.jl:28
jl_call_fptr_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:339 [inlined]
jl_call_method_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:358 [inlined]
jl_apply_generic at /home/centos/buildbot/slave/package_tarball64/build/src/gf.c:1933
jl_apply at /home/centos/buildbot/slave/package_tarball64/build/src/julia.h:1424 [inlined]
jl_f__apply at /home/centos/buildbot/slave/package_tarball64/build/src/builtins.c:426
index_gen at /home/ju17693/.julia/v0.6/Interpolations/src/gridded/linear.jl:38
jl_call_fptr_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:339 [inlined]
jl_call_method_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:358 [inlined]
jl_apply_generic at /home/centos/buildbot/slave/package_tarball64/build/src/gf.c:1933
jl_apply at /home/centos/buildbot/slave/package_tarball64/build/src/julia.h:1424 [inlined]
jl_f__apply at /home/centos/buildbot/slave/package_tarball64/build/src/builtins.c:426
index_gen at /home/ju17693/.julia/v0.6/Interpolations/src/b-splines/indexing.jl:28
jl_call_fptr_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:339 [inlined]
jl_call_method_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:358 [inlined]
jl_apply_generic at /home/centos/buildbot/slave/package_tarball64/build/src/gf.c:1933
jl_apply at /home/centos/buildbot/slave/package_tarball64/build/src/julia.h:1424 [inlined]
jl_f__apply at /home/centos/buildbot/slave/package_tarball64/build/src/builtins.c:426
index_gen at /home/ju17693/.julia/v0.6/Interpolations/src/gridded/linear.jl:38
index_gen at /home/ju17693/.julia/v0.6/Interpolations/src/gridded/linear.jl:38
getindex_impl at /home/ju17693/.julia/v0.6/Interpolations/src/gridded/indexing.jl:15
unknown function (ip: 0x7f194a85a852)
jl_call_fptr_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:339 [inlined]
jl_call_method_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:358 [inlined]
jl_apply_generic at /home/centos/buildbot/slave/package_tarball64/build/src/gf.c:1933
getindex at /home/ju17693/.julia/v0.6/Interpolations/src/gridded/indexing.jl:30
jl_call_staged at /home/centos/buildbot/slave/package_tarball64/build/src/method.c:263 [inlined]
jl_code_for_staged at /home/centos/buildbot/slave/package_tarball64/build/src/method.c:315
typeinf_frame at ./inference.jl:2476
typeinf_code at ./inference.jl:2564
unknown function (ip: 0x7f1a38fa96ad)
jl_call_fptr_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:339 [inlined]
jl_call_method_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:358 [inlined]
jl_apply_generic at /home/centos/buildbot/slave/package_tarball64/build/src/gf.c:1933
typeinf_ext at ./inference.jl:2603
unknown function (ip: 0x7f1a38f88782)
jl_call_fptr_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:339 [inlined]
jl_call_method_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:358 [inlined]
jl_apply_generic at /home/centos/buildbot/slave/package_tarball64/build/src/gf.c:1933
jl_apply at /home/centos/buildbot/slave/package_tarball64/build/src/julia.h:1424 [inlined]
jl_apply_with_saved_exception_state at /home/centos/buildbot/slave/package_tarball64/build/src/rtutils.c:257
jl_type_infer at /home/centos/buildbot/slave/package_tarball64/build/src/gf.c:269
jl_compile_for_dispatch at /home/centos/buildbot/slave/package_tarball64/build/src/gf.c:1668
jl_compile_method_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:307 [inlined]
jl_call_method_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:354 [inlined]
jl_apply_generic at /home/centos/buildbot/slave/package_tarball64/build/src/gf.c:1933
#segment_image#40 at /home/ju17693/projects/ASDF/ASDF/src/segment.jl:32
unknown function (ip: 0x7f194a84f20d)
jl_call_fptr_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:339 [inlined]
jl_call_method_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:358 [inlined]
jl_apply_generic at /home/centos/buildbot/slave/package_tarball64/build/src/gf.c:1933
#segment_image at ./:0
unknown function (ip: 0x7f194a84e3d6)
jl_call_fptr_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:339 [inlined]
jl_call_method_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:358 [inlined]
jl_apply_generic at /home/centos/buildbot/slave/package_tarball64/build/src/gf.c:1933
jl_apply at /home/centos/buildbot/slave/package_tarball64/build/src/julia.h:1424 [inlined]
jl_f__apply at /home/centos/buildbot/slave/package_tarball64/build/src/builtins.c:426
#segmentmap#48 at /home/ju17693/projects/ASDF/ASDFPlots/src/segment.jl:2
jl_call_fptr_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:339 [inlined]
jl_call_method_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:358 [inlined]
jl_apply_generic at /home/centos/buildbot/slave/package_tarball64/build/src/gf.c:1933
jl_apply at /home/centos/buildbot/slave/package_tarball64/build/src/julia.h:1424 [inlined]
jl_f__apply at /home/centos/buildbot/slave/package_tarball64/build/src/builtins.c:426
#segmentmap at ./:0
jl_call_fptr_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:339 [inlined]
jl_call_method_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:358 [inlined]
jl_apply_generic at /home/centos/buildbot/slave/package_tarball64/build/src/gf.c:1933
do_call at /home/centos/buildbot/slave/package_tarball64/build/src/interpreter.c:75
eval at /home/centos/buildbot/slave/package_tarball64/build/src/interpreter.c:242
jl_interpret_toplevel_expr at /home/centos/buildbot/slave/package_tarball64/build/src/interpreter.c:34
jl_toplevel_eval_flex at /home/centos/buildbot/slave/package_tarball64/build/src/toplevel.c:577
jl_parse_eval_all at /home/centos/buildbot/slave/package_tarball64/build/src/ast.c:873
jl_load at /home/centos/buildbot/slave/package_tarball64/build/src/toplevel.c:616
include_from_node1 at ./loading.jl:569
unknown function (ip: 0x7f1a39109b1b)
jl_call_fptr_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:339 [inlined]
jl_call_method_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:358 [inlined]
jl_apply_generic at /home/centos/buildbot/slave/package_tarball64/build/src/gf.c:1933
include at ./sysimg.jl:14
unknown function (ip: 0x7f1a38fae86b)
jl_call_fptr_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:339 [inlined]
jl_call_method_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:358 [inlined]
jl_apply_generic at /home/centos/buildbot/slave/package_tarball64/build/src/gf.c:1933
process_options at ./client.jl:305
_start at ./client.jl:371
unknown function (ip: 0x7f1a391156e8)
jl_call_fptr_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:339 [inlined]
jl_call_method_internal at /home/centos/buildbot/slave/package_tarball64/build/src/julia_internal.h:358 [inlined]
jl_apply_generic at /home/centos/buildbot/slave/package_tarball64/build/src/gf.c:1933
jl_apply at /home/centos/buildbot/slave/package_tarball64/build/ui/../src/julia.h:1424 [inlined]
true_main at /home/centos/buildbot/slave/package_tarball64/build/ui/repl.c:127
main at /home/centos/buildbot/slave/package_tarball64/build/ui/repl.c:264
__libc_start_main at /lib64/libc.so.6 (unknown line)
unknown function (ip: 0x40170c)
Allocations: 19832558 (Pool: 19746302; Big: 86256); GC: 175
Segmentation fault (core dumped)

```

Start with the failing call path in ASDF/src/segment.jl:32 and ASDFPlots/src/segment.jl:2, then inspect the Interpolations indexing frames at gridded/linear.jl and gridded/indexing.jl. Reproduce with the reported Julia, ArrayFire, CUDA, and driver versions before narrowing the example; done means identifying a reproducible cause and preventing the segmentation fault during permutedims or getindex.

Vom Indexierungsmodell aus dem Issue-Text verfasst.