core dump, with: Assertion `jl_types_equal((jl_value_t*)t, (jl_value_t*)dt)' failed.

[lobingera]

reported as issue on Gtk JuliaGraphics/Gtk.jl#268, but ...

               _
   _       _ _(_)_     |  A fresh approach to technical computing
  (_)     | (_) (_)    |  Documentation: http://docs.julialang.org
   _ _   _| |_  __ _   |  Type "?help" for help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 0.5.1-pre+2 (2016-09-20 03:34 UTC)
 _/ |\__'_|_|_|\__'_|  |  Commit f0d40ec* (48 days old release-0.5)
|__/                   |  x86_64-linux-gnu

julia> using Gtk

julia> workspace()

julia> using Gtk
WARNING: Method definition redirect_stdin(Function, Any) in module Compat at /home/lobi/.julia/v0.5/Compat/src/Compat.jl:1597 overwritten in module Compat at /home/lobi/.julia/v0.5/Compat/src/Compat.jl:1597.
WARNING: Method definition redirect_stdout(Function, Any) in module Compat at /home/lobi/.julia/v0.5/Compat/src/Compat.jl:1597 overwritten in module Compat at /home/lobi/.julia/v0.5/Compat/src/Compat.jl:1597.
WARNING: Method definition redirect_stderr(Function, Any) in module Compat at /home/lobi/.julia/v0.5/Compat/src/Compat.jl:1597 overwritten in module Compat at /home/lobi/.julia/v0.5/Compat/src/Compat.jl:1597.
julia: /home/lobi/julia05/src/dump.c:2370: jl_recache_type: Assertion `jl_types_equal((jl_value_t*)t, (jl_value_t*)dt)' failed.

signal (6): Aborted
while loading no file, in expression starting on line 0
raise at /build/eglibc-oGUzwX/eglibc-2.19/signal/../nptl/sysdeps/unix/sysv/linux/raise.c:56
abort at /build/eglibc-oGUzwX/eglibc-2.19/stdlib/abort.c:89
__assert_fail_base at /build/eglibc-oGUzwX/eglibc-2.19/assert/assert.c:92
__assert_fail at /build/eglibc-oGUzwX/eglibc-2.19/assert/assert.c:101
jl_recache_type at /home/lobi/julia05/src/dump.c:2370
jl_recache_types at /home/lobi/julia05/src/dump.c:2462
_jl_restore_incremental at /home/lobi/julia05/src/dump.c:2538
jl_restore_incremental at /home/lobi/julia05/src/dump.c:2580
_include_from_serialized at ./loading.jl:150
_require_from_serialized at ./loading.jl:187
_require_search_from_serialized at ./loading.jl:217
unknown function (ip: 0x7f740551a770)
jl_call_method_internal at /home/lobi/julia05/src/julia_internal.h:189
jl_apply_generic at /home/lobi/julia05/src/gf.c:1942
require at ./loading.jl:371
unknown function (ip: 0x7f74052a018b)
jl_call_method_internal at /home/lobi/julia05/src/julia_internal.h:189
jl_apply_generic at /home/lobi/julia05/src/gf.c:1942
jl_apply at /home/lobi/julia05/src/julia.h:1392
eval_import_path_ at /home/lobi/julia05/src/toplevel.c:402
eval_import_path at /home/lobi/julia05/src/toplevel.c:429
jl_toplevel_eval_flex at /home/lobi/julia05/src/toplevel.c:480
jl_toplevel_eval at /home/lobi/julia05/src/toplevel.c:580
jl_toplevel_eval_in_warn at /home/lobi/julia05/src/builtins.c:590
jl_toplevel_eval_in at /home/lobi/julia05/src/builtins.c:556
eval at ./boot.jl:234
unknown function (ip: 0x7f7405227ccf)
jl_call_method_internal at /home/lobi/julia05/src/julia_internal.h:189
jl_apply_generic at /home/lobi/julia05/src/gf.c:1942
eval_user_input at ./REPL.jl:64
unknown function (ip: 0x7f71f3b2e6c6)
jl_call_method_internal at /home/lobi/julia05/src/julia_internal.h:189
jl_apply_generic at /home/lobi/julia05/src/gf.c:1942
macro expansion at ./REPL.jl:95 [inlined]
#3 at ./event.jl:68
unknown function (ip: 0x7f71f3b2515f)
jl_call_method_internal at /home/lobi/julia05/src/julia_internal.h:189
jl_apply_generic at /home/lobi/julia05/src/gf.c:1942
jl_apply at /home/lobi/julia05/src/julia.h:1392
start_task at /home/lobi/julia05/src/task.c:253
unknown function (ip: 0xffffffffffffffff)
Allocations: 3662487 (Pool: 3661480; Big: 1007); GC: 3
Aborted (core dumped)

[martinholters]

#16467?

[lobingera]

tend to agree

[yuyichao]

I don't think this is actually the same issue. (Also seems to be fixed on master)

[lobingera]

why do you think it's not the same issue?

[yuyichao]

It fails before it starts to run the __init__ function the second time.

[yuyichao]

Reduced to

__precompile__()
module Gtk

abstract GObject
const fundamental_types = Ptr{GObject}
@eval f1{T<:$GObject}(::Type{T}) = 1
f2(hnd::Ptr{GObject}) = 2
end

Happens on master and 0.5 with precompile on.

[yuyichao]

And it happens ~20-30% of the time when running in a loop....

[KristofferC]

workspace is removed, so this issue seems obsolete.