Segfault on 1.9.3 with script file

[dalum]

We recently upgraded from 1.8.5 to 1.9.3, and now our Linux sysimage build pipeline is failing. We rely on injecting a few things into the sysimage during generation, by using a script file, but when those are included, the resulting sysimage segfaults on load.

I have reduced it to the following:

• A script file (script.jl) containing:

  const DEPS = @eval Module() begin
  using Pkg
  Pkg.dependencies()
  end

• And a sysimage built using:

  julia> create_sysimage(String[]; sysimage_path="sysimage.so", script="script.jl")
  ⠇ [00m:23s] PackageCompiler: compiling incremental system imageTask
  Task(next=nothing, queue=Base.IntrusiveLinkedList{Task}(head=<circular reference @-2>, tail=<circular reference @-2>), storage=nothing, donenotify=Base.GenericCondition{Base.Threads.SpinLock}(waitq=Base.IntrusiveLinkedList{Task}(head=nothing, tail=nothing), lock=Base.Threads.SpinLock(owned=0)), result=nothing, logstate=nothing, code=Base.var"#702#703"{FileWatching.Pidfile.var"#2#4"{Base.Filesystem.File}, Base.Timer}(cb=FileWatching.Pidfile.var"#2#4"{Base.Filesystem.File}(fd=Base.Filesystem.File(open=false, handle=Base.Libc.RawFD(0xffffffff))), timer=Base.Timer(handle=0x0000000005cccef0, cond=Base.GenericCondition{Base.Threads.SpinLock}(waitq=Base.IntrusiveLinkedList{Task}(head=<circular reference @-4>, tail=<circular reference @-4>), lock=Base.Threads.SpinLock(owned=0)), isopen=false, set=false)), rngState0=0x0000000000000000, rngState1=0x0000000000000000, rngState2=0x0000000000000000, rngState3=0x0000000000000000, _state=0x00, sticky=true, _isexception=false, priority=0x0000)
  Task
  Task(next=nothing, queue=Base.IntrusiveLinkedList{Task}(head=<circular reference @-2>, tail=<circular reference @-2>), storage=nothing, donenotify=Base.GenericCondition{Base.Threads.SpinLock}(waitq=Base.IntrusiveLinkedList{Task}(head=nothing, tail=nothing), lock=Base.Threads.SpinLock(owned=0)), result=nothing, logstate=nothing, code=Base.var"#702#703"{FileWatching.Pidfile.var"#2#4"{Base.Filesystem.File}, Base.Timer}(cb=FileWatching.Pidfile.var"#2#4"{Base.Filesystem.File}(fd=Base.Filesystem.File(open=false, handle=Base.Libc.RawFD(0xffffffff))), timer=Base.Timer(handle=0x0000000005cccef0, cond=Base.GenericCondition{Base.Threads.SpinLock}(waitq=Base.IntrusiveLinkedList{Task}(head=<circular reference @-4>, tail=<circular reference @-4>), lock=Base.Threads.SpinLock(owned=0)), isopen=false, set=false)), rngState0=0x0000000000000000, rngState1=0x0000000000000000, rngState2=0x0000000000000000, rngState3=0x0000000000000000, _state=0x00, sticky=true, _isexception=false, priority=0x0000)
  ✔ [02m:60s] PackageCompiler: compiling incremental system image

• Upon loading this sysimage, the following segfault is encountered:

  
  $ julia -J sysimage.so

[33174] signal (11.1): Segmentation fault in expression starting at none:0 Segmentation fault (core dumped)

In my attempts to diagnose the issue, I've noted that the printing of `Task` during the build (like above) is always correlated with a faulty sysimage.

Note that this workflow has been tested and works perfectly fine on 1.7.3, 1.8.2, and 1.8.5

[dalum]

This seems to be fixed in 1.10-rc1, but is still reproducible on 1.9.3.