Some sort of memory error in random number generation

[Keno]

julia> xs = rand(Float80, 10000)
ERROR: ReadOnlyMemoryError()
Stacktrace:
 [1] setindex! at ./array.jl:780 [inlined]
 [2] rand! at /Users/kfischer/Projects/julia-doublecheck/usr/share/julia/stdlib/v1.4/Random/src/Random.jl:268 [inlined]
 [3] rand! at /Users/kfischer/Projects/julia-doublecheck/usr/share/julia/stdlib/v1.4/Random/src/Random.jl:264 [inlined]
 [4] rand(::Random.MersenneTwister, ::Type{Float80}, ::Tuple{Int64}) at /Users/kfischer/Projects/julia-doublecheck/usr/share/julia/stdlib/v1.4/Random/src/Random.jl:285
 [5] rand at /Users/kfischer/Projects/julia-doublecheck/usr/share/julia/stdlib/v1.4/Random/src/Random.jl:286 [inlined]
 [6] rand(::Type{Float80}, ::Int64) at /Users/kfischer/Projects/julia-doublecheck/usr/share/julia/stdlib/v1.4/Random/src/Random.jl:289
 [7] top-level scope at REPL[2]:1

[rfourquet]

I get a segmentation fault. But I don't think this is related to RNG, when I try to write a fixed value to each position of Array{Float80}(undef, 10000), I get a corrupted size vs. prev_size error followed by an abort signal sent. I believe it's caused by a Julia bug with arrays of eltype of size not-a-power-of-two, cf. JuliaLang/julia#29053.

[rfourquet]

Fixed by JuliaLang/julia#33283.