Distrubuted Fault

Manifest.toml

[[Base64]]
uuid = "2a0f44e3-6c83-55bd-87e4-b1978d98bd5f"

[[BinaryProvider]]
deps = ["Libdl", "SHA"]
git-tree-sha1 = "5b08ed6036d9d3f0ee6369410b830f8873d4024c"
uuid = "b99e7846-7c00-51b0-8f62-c81ae34c0232"
version = "0.5.8"

[[Compat]]
deps = ["Base64", "Dates", "DelimitedFiles", "Distributed", "InteractiveUtils", "LibGit2", "Libdl", "LinearAlgebra", "Markdown", "Mmap", "Pkg", "Printf", "REPL", "Random", "Serialization", "SharedArrays", "Sockets", "SparseArrays", "Statistics", "Test", "UUIDs", "Unicode"]
git-tree-sha1 = "ed2c4abadf84c53d9e58510b5fc48912c2336fbb"
uuid = "34da2185-b29b-5c13-b0c7-acf172513d20"
version = "2.2.0"

[[Dates]]
deps = ["Printf"]
uuid = "ade2ca70-3891-5945-98fb-dc099432e06a"

[[DelimitedFiles]]
deps = ["Mmap"]
uuid = "8bb1440f-4735-579b-a4ab-409b98df4dab"

[[Distributed]]
deps = ["LinearAlgebra", "Random", "Serialization", "Sockets"]
uuid = "8ba89e20-285c-5b6f-9357-94700520ee1b"

[[EzXML]]
deps = ["BinaryProvider", "Libdl", "Printf"]
git-tree-sha1 = "aed48d722e528bc634bd36a7d0e090fa2952a3c0"
uuid = "8f5d6c58-4d21-5cfd-889c-e3ad7ee6a615"
version = "0.9.4"

[[InteractiveUtils]]
deps = ["LinearAlgebra", "Markdown"]
uuid = "b77e0a4c-d291-57a0-90e8-8db25a27a240"

[[Intervals]]
deps = ["Compat", "TimeZones"]
git-tree-sha1 = "32ea55c8a545aaa90f5e3f8432abe7857a6156f0"
uuid = "d8418881-c3e1-53bb-8760-2df7ec849ed5"
version = "0.5.1"

[[LibGit2]]
uuid = "76f85450-5226-5b5a-8eaa-529ad045b433"

[[Libdl]]
uuid = "8f399da3-3557-5675-b5ff-fb832c97cbdb"

[[LinearAlgebra]]
deps = ["Libdl"]
uuid = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"

[[Logging]]
uuid = "56ddb016-857b-54e1-b83d-db4d58db5568"

[[Markdown]]
deps = ["Base64"]
uuid = "d6f4376e-aef5-505a-96c1-9c027394607a"

[[Mmap]]
uuid = "a63ad114-7e13-5084-954f-fe012c677804"

[[Mocking]]
git-tree-sha1 = "bd2623f8b728af988d2afec53d611acb621f3bc4"
uuid = "78c3b35d-d492-501b-9361-3d52fe80e533"
version = "0.7.0"

[[Pkg]]
deps = ["Dates", "LibGit2", "Markdown", "Printf", "REPL", "Random", "SHA", "UUIDs"]
uuid = "44cfe95a-1eb2-52ea-b672-e2afdf69b78f"

[[Printf]]
deps = ["Unicode"]
uuid = "de0858da-6303-5e67-8744-51eddeeeb8d7"

[[REPL]]
deps = ["InteractiveUtils", "Markdown", "Sockets"]
uuid = "3fa0cd96-eef1-5676-8a61-b3b8758bbffb"

[[Random]]
deps = ["Serialization"]
uuid = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"

[[SHA]]
uuid = "ea8e919c-243c-51af-8825-aaa63cd721ce"

[[Serialization]]
uuid = "9e88b42a-f829-5b0c-bbe9-9e923198166b"

[[SharedArrays]]
deps = ["Distributed", "Mmap", "Random", "Serialization"]
uuid = "1a1011a3-84de-559e-8e89-a11a2f7dc383"

[[Sockets]]
uuid = "6462fe0b-24de-5631-8697-dd941f90decc"

[[SparseArrays]]
deps = ["LinearAlgebra", "Random"]
uuid = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"

[[Statistics]]
deps = ["LinearAlgebra", "SparseArrays"]
uuid = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"

[[Test]]
deps = ["Distributed", "InteractiveUtils", "Logging", "Random"]
uuid = "8dfed614-e22c-5e08-85e1-65c5234f0b40"

[[TimeZones]]
deps = ["Dates", "EzXML", "Mocking", "Printf", "Serialization", "Unicode"]
git-tree-sha1 = "29c7ae3f50f291358043e21db47b3e1a516df891"
uuid = "f269a46b-ccf7-5d73-abea-4c690281aa53"
version = "0.10.3"

[[UUIDs]]
deps = ["Random"]
uuid = "cf7118a7-6976-5b1a-9a39-7adc72f591a4"

[[Unicode]]
uuid = "4ec0a83e-493e-50e2-b9ac-8f72acf5a8f5"

Project.toml

[deps]
Dates = "ade2ca70-3891-5945-98fb-dc099432e06a"
Intervals = "d8418881-c3e1-53bb-8760-2df7ec849ed5"
TimeZones = "f269a46b-ccf7-5d73-abea-4c690281aa53"

runme.jl

using Distributed
addprocs(3)
@everywhere using Pkg
@everywhere Pkg.activate(".")
@everywhere using Dates, TimeZones, Intervals

const dts = DateTime(2000,11,10) .+ Hour.(0:24*60)
const zdts = ZonedDateTime.(dts, localzone())
const ivals = Interval.(zdts, zdts.+Hour(1))
const many = rand(ivals, 297_944)

mkfun(data) =  ii->(ii, Distributed.myid(), sizeof(data))
const fun2 = mkfun(many)

# Odds are that one of these will fail
pmap(fun2, CachingPool(workers()), 1:10)
pmap(fun2, CachingPool(workers()), 1:10)
pmap(fun2, CachingPool(workers()), 1:10)
pmap(fun2, CachingPool(workers()), 1:10)
pmap(fun2, CachingPool(workers()), 1:10)

#==
# Error is:
ERROR: IOError: write: bad address in system call argument (EFAULT)
Stacktrace:
 [1] (::getfield(Base, Symbol("##684#686")))(::Task) at ./asyncmap.jl:178
 [2] foreach(::getfield(Base, Symbol("##684#686")), ::Array{Any,1}) at ./abstractarray.jl:1835
 [3] maptwice(::Function, ::Channel{Any}, ::Array{Any,1}, ::UnitRange{Int64}) at ./asyncmap.jl:178
 [4] #async_usemap#669 at ./asyncmap.jl:154 [inlined]
 [5] #async_usemap at ./none:0 [inlined]
 [6] #asyncmap#668 at ./asyncmap.jl:81 [inlined]
 [7] #asyncmap at ./none:0 [inlined]
 [8] #pmap#213(::Bool, ::Int64, ::Nothing, ::Array{Any,1}, ::Nothing, ::Function, ::Function, ::CachingPool, ::UnitRange{Int64}) at /User
s/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.0/Distributed/src/pmap.jl:126
 [9] pmap(::Function, ::CachingPool, ::UnitRange{Int64}) at /Users/julia/buildbot/worker/package_macos64/build/usr/share/julia/stdlib/v1.
0/Distributed/src/pmap.jl:101
 [10] top-level scope at none:0
==#