Stalls for 3.8.2 in dune build on Windows GitLab CI #8043
Description
Behavior
I do a dune build (exact verbose logs are at https://gist.github.com/jonahbeckford/c33118fd45812e2bf73d5f4c4266710a).
I get a stall (deadlock?) under certain conditions:
- Only Dune 3.8.2. (Versions prior to 3.8.2 work! Dune 3.6.2, 3.7.1, 3.8.0 and 3.8.1)
- Only GitLab CI machines. (Not my desktop, and apparently not on GitHub Actions)
Because of the above conditions, I strongly suspect the root cause is #7906 ("Use threaded console, adapt for Windows"). EDIT: Tested that this wasn't the commit.
Reproduction
A dune build of many packages (quite similar to a opam monorepo build).
These packages:
lwt.5.6.1stdint.0.7.2memtrace.v0.2.3fiber.3.7.0
and the following:
astring.0.8.5+dune ; d950ab785805c6fb51bc48dff6380118
base-bytes.base+dune ; 607827e71b1a816b33e16104d966f39c
base.v0.15.1 ; f3d7f4e72096610b2f14017c351df010
camlp-streams.5.0.1 ; 179a0662333b2ac5c7a3cc5009e1020f
capnp.3.5.0 ; c79f2454d7d9d956f0f45f25e3c25fb2
cppo.1.6.9 ; 64b7f30febf9b6c4977f537ea936992d
csexp.1.5.2 ; 69b9a4107a979db5724ccdb0b1f3fbf8
cstruct.6.2.0 ; 1c750a2ed4098f82b65153917b9ad475
dum.1.0.3 ; 21bd91e73b7e9bccb298854f1bf47e58
dyn.3.8.0 ; e7bdb1e6bcf1cdc2c004f72faa1ecf52
easy-format.1.3.4 ; e77d2a3c8294190d59006af468ef9f09
ezjsonm.1.3.0 ; 1b532e39182b85e4a787f270fccf2fb4
; fiber.3.7.0 ; excluded
fmt.0.9.0+dune ; c6bc7ec23eb7c17757f5bbf5921cbe7a
hex.1.5.0 ; c09195f94932559683a73fdd1d9b34c4
jsonm.1.0.1+dune ; 2eb446505d1c6606ed1386e060b10fb5
; lwt.5.6.1 ; excluded
merlin-lib.4.9-414 ; de781e33ca6733f2299317216209099d
ocaml-lsp-server.1.16.1 ; 85d7dfb00197484dc541be706ad2d512
ocamlformat-rpc-lib.0.25.1 ; 058d4868136786112700d4ab4d934749
ocplib-endian.1.2 ; 272a0bc808996570167fb33ada28bbd7
odoc-parser.2.0.0 ; 2f9b8dafa83ecb0946cc919012d55748
pp.1.1.2 ; 1374b90bfdaffef32447990ac6a29f2f
ppx_yojson_conv_lib.v0.16.0 ; 090dde9cceea381878a30d29de2ddc4f
re.1.10.4 ; 56fd03da1fdba0759f9ce7c24ae8e4a5
res.5.0.1 ; 149dbcb0511e2bbc6e09040617c28330
result.1.5 ; be8c7653e74b05864f855ff6008bc067
seq.base+dune ; 4419c6d032b2ba303d6393c1b229eafd
sexplib0.v0.15.1 ; d8968ee97fd639e136b4805c8d10fe26
spawn.v0.15.1 ; 34d7a3ab2bb70495057498b88549d111
; stdint.0.7.2 ; excluded
stdio.v0.15.0 ; 9d0a6023715b6a014214f07c7b0fdc75
tezt.3.1.0 ; e392df3a5c51f21dacf031de3c9c8767
uuidm.0.9.8+dune ; 6b19ffff77048ebc701476cf5f629a22
uutf.1.0.3+dune ; 58b861b89d85b6ff2a91d41d172b6080
yojson.2.1.0 ; 6e18f18435a049543e0ab30a5884f7c2
Specifications
- Version of
dune(output ofdune --version): 3.8.2 - Version of
ocaml(output ofocamlc --version): 4.14.0 - Operating system (distribution and version):
- Windows Container
- GitLab
windows-1809tag (aka. compatible with Windows 10 1809) - https://gitlab.com/gitlab-org/ci-cd/shared-runners/images/gcp/windows-containers/-/blob/main/cookbooks/preinstalled-software/README.md
Additional information
- Link to gist with verbose output (run
dunewith the--verboseflag):
https://gist.github.com/jonahbeckford/c33118fd45812e2bf73d5f4c4266710a