# StackOverflowError with CSV.File when using HybridArrays and Symbolics in 1.7

**URL:** <https://discourse.julialang.org/t/stackoverflowerror-with-csv-file-when-using-hybridarrays-and-symbolics-in-1-7/72652>\
**Category:** General Usage\
**Created:** [December 6, 2021, 12:59pm UTC](https://discourse.julialang.org/t/stackoverflowerror-with-csv-file-when-using-hybridarrays-and-symbolics-in-1-7/72652 "2021-12-06T12:59:38Z")\
**Posts on this page:** 7\
**Page:** 1

<div class="post-metadata">

**Author:** ![judober](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/judober/32/6676_2.png) [@judober](https://discourse.julialang.org/u/judober)\
**Post date:** [December 6, 2021, 12:59pm UTC](https://discourse.julialang.org/t/stackoverflowerror-with-csv-file-when-using-hybridarrays-and-symbolics-in-1-7/72652/1 "2021-12-06T12:59:38Z")

</div>

Hello everyone,

I’m getting `StackOverflowError()` when runing the folowing code in Julia 1.7:

```julia
using CSV, Symbolics, HybridArrays

function test1()
    CSV.File("test.dat"; delim = "; ", types = Float64)
end

test1()

```

`test.data` is just

```julia
Number
2.0

```

The code works under 1.6.4. Does anyone experience the same error?

---

<div class="post-metadata">

**Author:** ![lawless-m](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/lawless-m/32/30869_2.png) [@lawless-m](https://discourse.julialang.org/u/lawless-m)\
**Post date:** [December 6, 2021, 1:40pm UTC](https://discourse.julialang.org/t/stackoverflowerror-with-csv-file-when-using-hybridarrays-and-symbolics-in-1-7/72652/2 "2021-12-06T13:40:41Z")

</div>

```julia
julia> versioninfo()
Julia Version 1.7.0
Commit 3bf9d17731 (2021-11-30 12:12 UTC)
Platform Info:
  OS: Linux (x86_64-pc-linux-gnu)
  CPU: Intel(R) Xeon(R) CPU E5-2660 v3 @ 2.60GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-12.0.1 (ORCJIT, haswell)

```

I get 1000s of lines of this repeated over and over

```julia
intersect_union at /buildworker/worker/package_linux64/build/src/subtype.c:2154
intersect_all at /buildworker/worker/package_linux64/build/src/subtype.c:3196
intersect_aside at /buildworker/worker/package_linux64/build/src/subtype.c:2131
intersect_var at /buildworker/worker/package_linux64/build/src/subtype.c:2334
intersect at /buildworker/worker/package_linux64/build/src/subtype.c:3053
intersect_union at /buildworker/worker/package_linux64/build/src/subtype.c:2154

```

until eventually it spits this out

```julia

jfptr__start_43127.clone_1 at /opt/julia-1.7.0/lib/julia/sys.so (unknown line)
_jl_invoke at /buildworker/worker/package_linux64/build/src/gf.c:2247 [inlined]
jl_apply_generic at /buildworker/worker/package_linux64/build/src/gf.c:2429
jl_apply at /buildworker/worker/package_linux64/build/src/julia.h:1788 [inlined]
true_main at /buildworker/worker/package_linux64/build/src/jlapi.c:559
jl_repl_entrypoint at /buildworker/worker/package_linux64/build/src/jlapi.c:701
main at /buildworker/worker/package_linux64/build/cli/loader_exe.c:42
__libc_start_main at /lib/x86_64-linux-gnu/libc.so.6 (unknown line)
_start at julia (unknown line)

1-element CSV.File:
 CSV.Row: (Number = 2.0,)

```

In fact you don’t even need a CSV file, or a function

```julia
CSV.File(""; delim = "; ", types = Float64)

```

does the same at eventually pops out `ERROR: ArgumentError: "" is not a valid file or doesn't exist` after 1000s of the same error message

`using CSV, Symbolics` works OK  
as does  
`using CSV, HybridArrays`

---

<div class="post-metadata">

**Author:** ![bkamins](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/bkamins/32/208538_2.png) [@bkamins](https://discourse.julialang.org/u/bkamins)\
**Post date:** [December 6, 2021, 1:54pm UTC](https://discourse.julialang.org/t/stackoverflowerror-with-csv-file-when-using-hybridarrays-and-symbolics-in-1-7/72652/3 "2021-12-06T13:54:24Z")

</div>

Can you please report it in CSV.jl?

---

<div class="post-metadata">

**Author:** ![judober](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/judober/32/6676_2.png) [@judober](https://discourse.julialang.org/u/judober)\
**Post date:** [December 6, 2021, 3:03pm UTC](https://discourse.julialang.org/t/stackoverflowerror-with-csv-file-when-using-hybridarrays-and-symbolics-in-1-7/72652/4 "2021-12-06T15:03:32Z")

</div>

I filed an [issue](https://github.com/JuliaData/CSV.jl/issues/946).

Im geting many lines of `intersect ...` following the Stack Overflow with some others mixed in as well.

For completeness:

```julia
julia> versioninfo()
Julia Version 1.7.0
Commit 3bf9d17731 (2021-11-30 12:12 UTC)
Platform Info:
  OS: Windows (x86_64-w64-mingw32)
  CPU: Intel(R) Core(TM) i5-7600 CPU @ 3.50GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-12.0.1 (ORCJIT, skylake)

```

---

<div class="post-metadata">

**Author:** ![quinnj](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/quinnj/32/11_2.png) [@quinnj](https://discourse.julialang.org/u/quinnj)\
**Post date:** [December 7, 2021, 4:55am UTC](https://discourse.julialang.org/t/stackoverflowerror-with-csv-file-when-using-hybridarrays-and-symbolics-in-1-7/72652/5 "2021-12-07T04:55:41Z")

</div>

I don’t see the same error on linux, latest 1.7 release:

 ![image](https://global.discourse-cdn.com/julialang/original/3X/b/e/be402faeb529c2bc2afe85340f5b1dc757947687.png)

The stacktrace, however, suggests some kind of internal compiler failure. I’d report an issue to JuliaLang/julia with the exact versions of OS, julia, etc. to reproduce.

---

<div class="post-metadata">

**Author:** ![judober](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/judober/32/6676_2.png) [@judober](https://discourse.julialang.org/u/judober)\
**Post date:** [December 7, 2021, 6:24am UTC](https://discourse.julialang.org/t/stackoverflowerror-with-csv-file-when-using-hybridarrays-and-symbolics-in-1-7/72652/6 "2021-12-07T06:24:20Z")

</div>

Have you been `using HybridArrays, Symbolics` as well? I don’t see them in your screenshot.  
I only get the error when these are both active too, combining CSV with either one of these works fine (It was quite difficult to find this combination as the original project had many more dependencies).

---

<div class="post-metadata">

**Author:** ![judober](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/judober/32/6676_2.png) [@judober](https://discourse.julialang.org/u/judober)\
**Post date:** [December 7, 2021, 6:51am UTC](https://discourse.julialang.org/t/stackoverflowerror-with-csv-file-when-using-hybridarrays-and-symbolics-in-1-7/72652/7 "2021-12-07T06:51:00Z")

</div>

One more machine I see the problem on:

```julia
julia> versioninfo()
Julia Version 1.7.0
Commit 3bf9d17731 (2021-11-30 12:12 UTC)
Platform Info:
  OS: macOS (x86_64-apple-darwin19.5.0)
  CPU: Intel(R) Core(TM) i5-7287U CPU @ 3.30GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-12.0.1 (ORCJIT, skylake)

```

As it is related to 1.7 you are probably right that I should report to base.

Update: [The report](https://github.com/JuliaLang/julia/issues/43357)