Segfault when revising package

[fingolfin]

This looks similar to the error in #674 but since it does not occur during loading, but rather when revising, I am not 100% sure they are the same, so I am opening a separate issue for now.

The crash occurs when revising https://github.com/oscar-system/Oscar.jl. Some complicating factors

• this is on an M1 mac, which is Tier 3, so could be specific to that
• there were trouble with Oscar before, because of GAP.jl, which is the unique Julia package to use "foreign types", and caused trouble before in a different context

Here is a sample session:

               _
   _       _ _(_)_     |  Documentation: https://docs.julialang.org
  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.8.0-beta1 (2022-02-23)
 _/ |\__'_|_|_|\__'_|  |
|__/                   |

julia> versioninfo()
Julia Version 1.8.0-beta1
Commit 7b711ce699 (2022-02-23 15:09 UTC)
Platform Info:
  OS: macOS (arm64-apple-darwin21.3.0)
  CPU: 10 × Apple M1 Max
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-13.0.1 (ORCJIT, apple-m1)
  Threads: 1 on 8 virtual cores

(1.8) pkg> status
Status `~/Projekte/OSCAR/Oscar.jl/p/1.8/Project.toml`
  [f1435218] Oscar v0.8.2-DEV `../..`
  [295af30f] Revise v3.3.2

julia> using Revise, Oscar
 -----    -----    -----      -      -----
|     |  |     |  |     |    | |    |     |
|     |  |        |         |   |   |     |
|     |   -----   |        |     |  |-----
|     |        |  |        |-----|  |   |
|     |  |     |  |     |  |     |  |    |
 -----    -----    -----   -     -  -     -

...combining (and extending) ANTIC, GAP, Polymake and Singular
Version 0.8.2-DEV ...
 ... which comes with absolutely no warranty whatsoever
Type: '?Oscar' for more information
(c) 2019-2022 by The Oscar Development Team

julia>

# now edit Oscar -- say, insert an empty line somewhere

julia> 1+1  # just do something to trigger Revise

signal (11): Segmentation fault: 11
in expression starting at none:1
jl_typemap_level_assoc_exact at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/typemap.c:1026
jl_typemap_assoc_exact at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/./julia_internal.h:1320 [inlined]
jl_typemap_level_assoc_exact at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/typemap.c:1027
jl_typemap_assoc_exact at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/./julia_internal.h:1320 [inlined]
jl_lookup_generic_ at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/gf.c:2462 [inlined]
ijl_apply_generic at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/gf.c:2518
jl_apply at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/./julia.h:1825 [inlined]
do_call at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/interpreter.c:126
eval_body at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/interpreter.c:0
jl_interpret_toplevel_thunk at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/interpreter.c:750
jl_toplevel_eval_flex at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/toplevel.c:906
ijl_toplevel_eval at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/toplevel.c:915 [inlined]
ijl_toplevel_eval_in at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/toplevel.c:965
eval at ./boot.jl:368 [inlined]
do_assignment! at /Users/mhorn/.julia/packages/JuliaInterpreter/wCcib/src/interpret.jl:349
unknown function (ip: 0x2ee0c2557)
step_expr! at /Users/mhorn/.julia/packages/JuliaInterpreter/wCcib/src/interpret.jl:465
unknown function (ip: 0x2ee0c261b)
unknown function (ip: 0x2ee0c277b)
step_expr! at /Users/mhorn/.julia/packages/JuliaInterpreter/wCcib/src/interpret.jl:508
#methods_by_execution!#24 at /Users/mhorn/.julia/packages/Revise/wjNpr/src/lowered.jl:434
unknown function (ip: 0x2ee17643f)
unknown function (ip: 0x2cc0ca927)
unknown function (ip: 0x2cc0ca623)
methods_by_execution!##kw at /Users/mhorn/.julia/packages/Revise/wjNpr/src/lowered.jl:239 [inlined]
#methods_by_execution!#20 at /Users/mhorn/.julia/packages/Revise/wjNpr/src/lowered.jl:217
methods_by_execution!##kw at /Users/mhorn/.julia/packages/Revise/wjNpr/src/lowered.jl:175 [inlined]
#eval_with_signatures#90 at /Users/mhorn/.julia/packages/Revise/wjNpr/src/packagedef.jl:464 [inlined]
eval_with_signatures##kw at /Users/mhorn/.julia/packages/Revise/wjNpr/src/packagedef.jl:462 [inlined]
#instantiate_sigs!#91 at /Users/mhorn/.julia/packages/Revise/wjNpr/src/packagedef.jl:472
instantiate_sigs! at /Users/mhorn/.julia/packages/Revise/wjNpr/src/packagedef.jl:469 [inlined]
maybe_extract_sigs! at /Users/mhorn/.julia/packages/Revise/wjNpr/src/pkgs.jl:141 [inlined]
handle_deletions at /Users/mhorn/.julia/packages/Revise/wjNpr/src/packagedef.jl:641
#revise#96 at /Users/mhorn/.julia/packages/Revise/wjNpr/src/packagedef.jl:747
revise at /Users/mhorn/.julia/packages/Revise/wjNpr/src/packagedef.jl:735
unknown function (ip: 0x2cc1b801b)
_jl_invoke at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/gf.c:0 [inlined]
ijl_apply_generic at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/gf.c:2522
jl_apply at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/./julia.h:1825 [inlined]
jl_f__call_latest at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/builtins.c:769
#invokelatest#2 at ./essentials.jl:729 [inlined]
invokelatest at ./essentials.jl:727
unknown function (ip: 0x106d58033)
_jl_invoke at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/gf.c:0 [inlined]
ijl_apply_generic at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/gf.c:2522
jl_apply at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/./julia.h:1825 [inlined]
do_call at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/interpreter.c:126
eval_body at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/interpreter.c:0
jl_interpret_toplevel_thunk at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/interpreter.c:750
jl_toplevel_eval_flex at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/toplevel.c:906
jl_toplevel_eval_flex at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/toplevel.c:850
ijl_toplevel_eval at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/toplevel.c:915 [inlined]
ijl_toplevel_eval_in at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/toplevel.c:965
eval at ./boot.jl:368 [inlined]
eval_user_input at /Users/mhorn/Projekte/Julia/julia.release-1.8/usr/share/julia/stdlib/v1.8/REPL/src/REPL.jl:151
repl_backend_loop at /Users/mhorn/Projekte/Julia/julia.release-1.8/usr/share/julia/stdlib/v1.8/REPL/src/REPL.jl:247
start_repl_backend at /Users/mhorn/Projekte/Julia/julia.release-1.8/usr/share/julia/stdlib/v1.8/REPL/src/REPL.jl:232
#run_repl#47 at /Users/mhorn/Projekte/Julia/julia.release-1.8/usr/share/julia/stdlib/v1.8/REPL/src/REPL.jl:369
run_repl at /Users/mhorn/Projekte/Julia/julia.release-1.8/usr/share/julia/stdlib/v1.8/REPL/src/REPL.jl:356
jfptr_run_repl_63033 at /Users/mhorn/Projekte/Julia/julia.release-1.8/usr/lib/julia/sys.dylib (unknown line)
_jl_invoke at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/gf.c:0 [inlined]
ijl_apply_generic at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/gf.c:2522
#960 at ./client.jl:419
jfptr_YY.960_44278 at /Users/mhorn/Projekte/Julia/julia.release-1.8/usr/lib/julia/sys.dylib (unknown line)
_jl_invoke at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/gf.c:0 [inlined]
ijl_apply_generic at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/gf.c:2522
jl_apply at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/./julia.h:1825 [inlined]
jl_f__call_latest at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/builtins.c:769
#invokelatest#2 at ./essentials.jl:729 [inlined]
invokelatest at ./essentials.jl:727 [inlined]
run_main_repl at ./client.jl:404
exec_options at ./client.jl:318
_start at ./client.jl:522
jfptr__start_48446 at /Users/mhorn/Projekte/Julia/julia.release-1.8/usr/lib/julia/sys.dylib (unknown line)
_jl_invoke at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/gf.c:0 [inlined]
ijl_apply_generic at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/gf.c:2522
jl_apply at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/./julia.h:1825 [inlined]
true_main at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/jlapi.c:562
jl_repl_entrypoint at /Users/mhorn/Projekte/Julia/julia.release-1.8/src/jlapi.c:706
Allocations: 48254739 (Pool: 48202239; Big: 52500); GC: 21
$

I'll try and see if I can reproduce it on an x86_64 Linux.

[fingolfin]

OK I can also reproduce it on x86_64 Linux:

               _
   _       _ _(_)_     |  Documentation: https://docs.julialang.org
  (_)     | (_) (_)    |
   _ _   _| |_  __ _   |  Type "?" for help, "]?" for Pkg help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 1.8.0-beta1 (2022-02-23)
 _/ |\__'_|_|_|\__'_|  |
|__/                   |

julia> versioninfo()
Julia Version 1.8.0-beta1
Commit 7b711ce699 (2022-02-23 15:09 UTC)
Platform Info:
  OS: Linux (x86_64-linux-gnu)
  CPU: 8 × Intel(R) Core(TM) i7-3820 CPU @ 3.60GHz
  WORD_SIZE: 64
  LIBM: libopenlibm
  LLVM: libLLVM-13.0.1 (ORCJIT, sandybridge)
  Threads: 1 on 8 virtual cores

(1.8) pkg> status
Status `~/Projekte/OSCAR/Oscar.jl/p/1.8/Project.toml`
  [f1435218] Oscar v0.8.2-DEV `../..`
  [295af30f] Revise v3.3.2

julia> using Revise, Oscar
 -----    -----    -----      -      -----
|     |  |     |  |     |    | |    |     |
|     |  |        |         |   |   |     |
|     |   -----   |        |     |  |-----
|     |        |  |        |-----|  |   |
|     |  |     |  |     |  |     |  |    |
 -----    -----    -----   -     -  -     -

...combining (and extending) ANTIC, GAP, Polymake and Singular
Version 0.8.2-DEV ...
 ... which comes with absolutely no warranty whatsoever
Type: '?Oscar' for more information
(c) 2019-2022 by The Oscar Development Team

# ... insert an empty line ...

julia> 1+1 # trigger Revise

signal (11): Segmentation fault
in expression starting at none:1
mtcache_hash_lookup at /home/mhorn/Projekte/Julia/julia.release-1.8/src/typemap.c:292 [inlined]
mtcache_hash_lookup at /home/mhorn/Projekte/Julia/julia.release-1.8/src/typemap.c:288 [inlined]
jl_typemap_level_assoc_exact at /home/mhorn/Projekte/Julia/julia.release-1.8/src/typemap.c:1025
jl_typemap_assoc_exact at /home/mhorn/Projekte/Julia/julia.release-1.8/src/julia_internal.h:1320 [inlined]
jl_typemap_level_assoc_exact at /home/mhorn/Projekte/Julia/julia.release-1.8/src/typemap.c:1027
jl_typemap_assoc_exact at /home/mhorn/Projekte/Julia/julia.release-1.8/src/julia_internal.h:1320 [inlined]
jl_lookup_generic_ at /home/mhorn/Projekte/Julia/julia.release-1.8/src/gf.c:2462 [inlined]
ijl_apply_generic at /home/mhorn/Projekte/Julia/julia.release-1.8/src/gf.c:2518
jl_apply at /home/mhorn/Projekte/Julia/julia.release-1.8/src/julia.h:1825 [inlined]
do_call at /home/mhorn/Projekte/Julia/julia.release-1.8/src/interpreter.c:126
eval_value at /home/mhorn/Projekte/Julia/julia.release-1.8/src/interpreter.c:215
eval_stmt_value at /home/mhorn/Projekte/Julia/julia.release-1.8/src/interpreter.c:166 [inlined]
eval_body at /home/mhorn/Projekte/Julia/julia.release-1.8/src/interpreter.c:612
jl_interpret_toplevel_thunk at /home/mhorn/Projekte/Julia/julia.release-1.8/src/interpreter.c:750
jl_toplevel_eval_flex at /home/mhorn/Projekte/Julia/julia.release-1.8/src/toplevel.c:906
ijl_toplevel_eval_in at /home/mhorn/Projekte/Julia/julia.release-1.8/src/toplevel.c:965
eval at ./boot.jl:368 [inlined]
do_assignment! at /home/mhorn/.julia/packages/JuliaInterpreter/wCcib/src/interpret.jl:349
step_expr! at /home/mhorn/.julia/packages/JuliaInterpreter/wCcib/src/interpret.jl:465
step_expr! at /home/mhorn/.julia/packages/JuliaInterpreter/wCcib/src/interpret.jl:589
finish! at /home/mhorn/.julia/packages/JuliaInterpreter/wCcib/src/commands.jl:14
step_expr! at /home/mhorn/.julia/packages/JuliaInterpreter/wCcib/src/interpret.jl:508
step_through_methoddef at /home/mhorn/.julia/packages/LoweredCodeUtils/c8DBv/src/signatures.jl:84
signature at /home/mhorn/.julia/packages/LoweredCodeUtils/c8DBv/src/signatures.jl:45
unknown function (ip: 0x7f605b41c914)
_jl_invoke at /home/mhorn/Projekte/Julia/julia.release-1.8/src/gf.c:2340 [inlined]
ijl_apply_generic at /home/mhorn/Projekte/Julia/julia.release-1.8/src/gf.c:2522
#methoddef!#7 at /home/mhorn/.julia/packages/LoweredCodeUtils/c8DBv/src/signatures.jl:493
methoddef!##kw at /home/mhorn/.julia/packages/LoweredCodeUtils/c8DBv/src/signatures.jl:445 [inlined]
#methods_by_execution!#24 at /home/mhorn/.julia/packages/Revise/wjNpr/src/lowered.jl:272
unknown function (ip: 0x7f605b42e00e)
unknown function (ip: 0x7f605b3cdab9)
unknown function (ip: 0x7f605b3cd746)
methods_by_execution!##kw at /home/mhorn/.julia/packages/Revise/wjNpr/src/lowered.jl:239 [inlined]
#methods_by_execution!#20 at /home/mhorn/.julia/packages/Revise/wjNpr/src/lowered.jl:217
methods_by_execution!##kw at /home/mhorn/.julia/packages/Revise/wjNpr/src/lowered.jl:175 [inlined]
#eval_with_signatures#90 at /home/mhorn/.julia/packages/Revise/wjNpr/src/packagedef.jl:464 [inlined]
eval_with_signatures##kw at /home/mhorn/.julia/packages/Revise/wjNpr/src/packagedef.jl:462 [inlined]
#instantiate_sigs!#91 at /home/mhorn/.julia/packages/Revise/wjNpr/src/packagedef.jl:472
instantiate_sigs! at /home/mhorn/.julia/packages/Revise/wjNpr/src/packagedef.jl:469 [inlined]
maybe_extract_sigs! at /home/mhorn/.julia/packages/Revise/wjNpr/src/pkgs.jl:141 [inlined]
handle_deletions at /home/mhorn/.julia/packages/Revise/wjNpr/src/packagedef.jl:641
#revise#96 at /home/mhorn/.julia/packages/Revise/wjNpr/src/packagedef.jl:747
revise at /home/mhorn/.julia/packages/Revise/wjNpr/src/packagedef.jl:735
unknown function (ip: 0x7f605b3e083f)
_jl_invoke at /home/mhorn/Projekte/Julia/julia.release-1.8/src/gf.c:2340 [inlined]
ijl_apply_generic at /home/mhorn/Projekte/Julia/julia.release-1.8/src/gf.c:2522
jl_apply at /home/mhorn/Projekte/Julia/julia.release-1.8/src/julia.h:1825 [inlined]
jl_f__call_latest at /home/mhorn/Projekte/Julia/julia.release-1.8/src/builtins.c:769
#invokelatest#2 at ./essentials.jl:729 [inlined]
invokelatest at ./essentials.jl:727
unknown function (ip: 0x7f605b354d12)
_jl_invoke at /home/mhorn/Projekte/Julia/julia.release-1.8/src/gf.c:2340 [inlined]
ijl_apply_generic at /home/mhorn/Projekte/Julia/julia.release-1.8/src/gf.c:2522
jl_apply at /home/mhorn/Projekte/Julia/julia.release-1.8/src/julia.h:1825 [inlined]
do_call at /home/mhorn/Projekte/Julia/julia.release-1.8/src/interpreter.c:126
eval_value at /home/mhorn/Projekte/Julia/julia.release-1.8/src/interpreter.c:215
eval_stmt_value at /home/mhorn/Projekte/Julia/julia.release-1.8/src/interpreter.c:166 [inlined]
eval_body at /home/mhorn/Projekte/Julia/julia.release-1.8/src/interpreter.c:612
jl_interpret_toplevel_thunk at /home/mhorn/Projekte/Julia/julia.release-1.8/src/interpreter.c:750
jl_toplevel_eval_flex at /home/mhorn/Projekte/Julia/julia.release-1.8/src/toplevel.c:906
jl_toplevel_eval_flex at /home/mhorn/Projekte/Julia/julia.release-1.8/src/toplevel.c:850
ijl_toplevel_eval_in at /home/mhorn/Projekte/Julia/julia.release-1.8/src/toplevel.c:965
eval at ./boot.jl:368 [inlined]
eval_user_input at /home/mhorn/Projekte/Julia/julia.release-1.8/usr/share/julia/stdlib/v1.8/REPL/src/REPL.jl:151
repl_backend_loop at /home/mhorn/Projekte/Julia/julia.release-1.8/usr/share/julia/stdlib/v1.8/REPL/src/REPL.jl:247
start_repl_backend at /home/mhorn/Projekte/Julia/julia.release-1.8/usr/share/julia/stdlib/v1.8/REPL/src/REPL.jl:232
#run_repl#47 at /home/mhorn/Projekte/Julia/julia.release-1.8/usr/share/julia/stdlib/v1.8/REPL/src/REPL.jl:369
run_repl at /home/mhorn/Projekte/Julia/julia.release-1.8/usr/share/julia/stdlib/v1.8/REPL/src/REPL.jl:356
jfptr_run_repl_63802 at /home/mhorn/Projekte/Julia/julia.release-1.8/usr/lib/julia/sys.so (unknown line)
_jl_invoke at /home/mhorn/Projekte/Julia/julia.release-1.8/src/gf.c:2340 [inlined]
ijl_apply_generic at /home/mhorn/Projekte/Julia/julia.release-1.8/src/gf.c:2522
#960 at ./client.jl:419
jfptr_YY.960_56587 at /home/mhorn/Projekte/Julia/julia.release-1.8/usr/lib/julia/sys.so (unknown line)
_jl_invoke at /home/mhorn/Projekte/Julia/julia.release-1.8/src/gf.c:2340 [inlined]
ijl_apply_generic at /home/mhorn/Projekte/Julia/julia.release-1.8/src/gf.c:2522
jl_apply at /home/mhorn/Projekte/Julia/julia.release-1.8/src/julia.h:1825 [inlined]
jl_f__call_latest at /home/mhorn/Projekte/Julia/julia.release-1.8/src/builtins.c:769
#invokelatest#2 at ./essentials.jl:729 [inlined]
invokelatest at ./essentials.jl:727 [inlined]
run_main_repl at ./client.jl:404
exec_options at ./client.jl:318
_start at ./client.jl:522
jfptr__start_42598 at /home/mhorn/Projekte/Julia/julia.release-1.8/usr/lib/julia/sys.so (unknown line)
_jl_invoke at /home/mhorn/Projekte/Julia/julia.release-1.8/src/gf.c:2340 [inlined]
ijl_apply_generic at /home/mhorn/Projekte/Julia/julia.release-1.8/src/gf.c:2522
jl_apply at /home/mhorn/Projekte/Julia/julia.release-1.8/src/julia.h:1825 [inlined]
true_main at /home/mhorn/Projekte/Julia/julia.release-1.8/src/jlapi.c:562
jl_repl_entrypoint at /home/mhorn/Projekte/Julia/julia.release-1.8/src/jlapi.c:706
main at julia-release-1.8 (unknown line)
__libc_start_main at /lib/x86_64-linux-gnu/libc.so.6 (unknown line)
_start at julia-release-1.8 (unknown line)
Allocations: 47393370 (Pool: 47341086; Big: 52284); GC: 28
Segmentation fault

[fingolfin]

I could try to reduce the example (i.e. hack down Oscar.jl to a minimal version that still repros the issue), but that'll be quite some work, so I am not sure when I'd find the time. In the meantime, perhaps someone has an idea already with this (at least now anyone has a chance to repro it, and e.g. attach a debugger)

[DilumAluthge]

OK I can also reproduce it on x86_64 Linux:

Can you get an rr trace? Just start Julia with julia --bug-report=rr.

[fingolfin]

@DilumAluthge OK. Hmm, seems this does not play nice with the --project=... option. Anyway, it seems to have worked, pretty cool tech :-). Result is at https://s3.amazonaws.com/julialang-dumps/reports/2022-03-03T02-14-51-fingolfin.tar.zst

[DilumAluthge]

Hmm, seems this does not play nice with the --project=... option.

JuliaLang/BugReporting.jl#35

[timholy]

I'm new to portable rr archives (and pretty new to rr itself), but I got

(rr) c
Continuing.
warning: Could not load shared library symbols for 2 libraries, e.g. /home/mhorn/.julia/artifacts/fed663d473a94b4d75db54e1a8e1cc8b42875680/bin/../lib/rr/librrpreload.so.
Use the "info sharedlibrary" command to see the complete listing.
Do you need "set solib-search-path" or "set sysroot"?
[FATAL /home/tim/src/rr/rr/src/ReplaySession.cc:508:cont_syscall_boundary() errno: EIO] 
 (task 2618357 (rec:276871) at time 269)
 -> Assertion `false' failed to hold. Replay got unrecorded signal {signo:SIGSEGV,errno:SUCCESS,code:SEGV_MAPERR,addr:0}
Tail of trace dump:
{

Maybe a path error? That archive has a file named mmap_pack_17_librrpreload.so, not sure if that's what it's looking for.

This is probably a Julia bug rather than Revise bug so it might be best to report there. FYI I can't replicate the crash locally.

[timholy]

CC @Keno who might have some insight

[fingolfin]

I am right now trying to bisect Julia for this, too, after all it worked a few works ago (but it's sloooooow to rebuild Julia each time... sigh)

[KristofferC]

Turning off the precompile stuff (JULIA_PRECOMPILE=0) in Make.user makes it faster.

[timholy]

I periodically learn and then forget that trick, thanks for the reminder.

[fingolfin]

bisected it to JuliaLang/julia@7b1e454 from JuliaLang/julia#43671 by @simeonschaub

[simeonschaub]

Is this only on 1.8, not 1.9? Trying this on the latest Julia master, I only get the following errors:

julia> using Revise, Oscar
[ Info: Precompiling Oscar [f1435218-dba5-11e9-1e4d-f1a5fab5fc13]
[Detaching after vfork from child process 1268362]
ERROR: LoadError: InitError: could not load library "/home/simeon/.julia/artifacts/c839838c859a6318d38122f94bfadd353cddf129/lib/libgap.so"
libjulia.so.1: cannot open shared object file: No such file or directory
Stacktrace:
  [1] dlopen(s::String, flags::UInt32; throw_error::Bool)
    @ Base.Libc.Libdl ./libdl.jl:117
  [2] dlopen(s::String, flags::UInt32)
    @ Base.Libc.Libdl ./libdl.jl:117
  [3] macro expansion
    @ ~/.julia/packages/JLLWrappers/QpMQW/src/products/library_generators.jl:54 [inlined]
  [4] __init__()
    @ GAP_jll ~/.julia/packages/GAP_jll/qG7vS/src/wrappers/x86_64-linux-gnu-cxx11-julia_version+1.9.0.jl:12
  [5] _include_from_serialized(path::String, depmods::Vector{Any})
    @ Base ./loading.jl:811
  [6] _require_search_from_serialized(pkg::Base.PkgId, sourcepath::String, depth::Int64)
    @ Base ./loading.jl:919
  [7] _require_search_from_serialized
    @ ./loading.jl:892 [inlined]
  [8] _require(pkg::Base.PkgId)
    @ Base ./loading.jl:1194
  [9] _require_prelocked(uuidkey::Base.PkgId)
    @ Base ./loading.jl:1087
 [10] macro expansion
    @ ./loading.jl:1067 [inlined]
 [11] macro expansion
    @ ./lock.jl:223 [inlined]
 [12] require(into::Module, mod::Symbol)
    @ Base ./loading.jl:1031
 [13] include
    @ ./Base.jl:426 [inlined]
 [14] include_package_for_output(pkg::Base.PkgId, input::String, depot_path::Vector{String}, dl_load_path::Vector{String}, load_path::Vector{String}, concrete_deps::Vector{Pair{Base.PkgId, UInt64}}, source::String)
    @ Base ./loading.jl:1418
 [15] top-level scope
    @ stdin:1
during initialization of module GAP_jll
in expression starting at /home/simeon/.julia/packages/GAP/lK1LP/src/GAP.jl:1
in expression starting at stdin:1
ERROR: LoadError: Failed to precompile GAP [c863536a-3901-11e9-33e7-d5cd0df7b904] to /home/simeon/.julia/compiled/v1.9/GAP/jl_j02rl3.
Stacktrace:
  [1] error(s::String)
    @ Base ./error.jl:35
  [2] compilecache(pkg::Base.PkgId, path::String, internal_stderr::IO, internal_stdout::IO, ignore_loaded_modules::Bool)
    @ Base ./loading.jl:1569
  [3] compilecache
    @ ./loading.jl:1513 [inlined]
  [4] _require(pkg::Base.PkgId)
    @ Base ./loading.jl:1217
  [5] _require_prelocked(uuidkey::Base.PkgId)
    @ Base ./loading.jl:1087
  [6] macro expansion
    @ ./loading.jl:1067 [inlined]
  [7] macro expansion
    @ ./lock.jl:223 [inlined]
  [8] require(into::Module, mod::Symbol)
    @ Base ./loading.jl:1031
  [9] include(mod::Module, _path::String)
    @ Base ./Base.jl:426
 [10] include(x::String)
    @ Oscar ~/.julia/packages/Oscar/HBikN/src/Oscar.jl:20
 [11] top-level scope
    @ ~/.julia/packages/Oscar/HBikN/src/Oscar.jl:22
 [12] include
    @ ./Base.jl:426 [inlined]
 [13] include_package_for_output(pkg::Base.PkgId, input::String, depot_path::Vector{String}, dl_load_path::Vector{String}, load_path::Vector{String}, concrete_deps::Vector{Pair{Base.PkgId, UInt64}}, source::Nothing)
    @ Base ./loading.jl:1418
 [14] top-level scope
    @ stdin:1
in expression starting at /home/simeon/.julia/packages/Oscar/HBikN/src/imports.jl:10
in expression starting at /home/simeon/.julia/packages/Oscar/HBikN/src/Oscar.jl:1
in expression starting at stdin:1
ERROR: Failed to precompile Oscar [f1435218-dba5-11e9-1e4d-f1a5fab5fc13] to /home/simeon/.julia/compiled/v1.9/Oscar/jl_dMGgZ7.
Stacktrace:
 [1] error(s::String)
   @ Base ./error.jl:35
 [2] compilecache(pkg::Base.PkgId, path::String, internal_stderr::IO, internal_stdout::IO, ignore_loaded_modules::Bool)
   @ Base ./loading.jl:1569
 [3] compilecache
   @ ./loading.jl:1513 [inlined]
 [4] _require(pkg::Base.PkgId)
   @ Base ./loading.jl:1217
 [5] _require_prelocked(uuidkey::Base.PkgId)
   @ Base ./loading.jl:1087
 [6] macro expansion
   @ ./loading.jl:1067 [inlined]
 [7] macro expansion
   @ ./lock.jl:223 [inlined]
 [8] require(into::Module, mod::Symbol)
   @ Base ./loading.jl:1031

julia> 1+1
2

[simeonschaub]

I still get this on the backports-release-1.8 and with the proper Oscar#master. The rr trace you posted unfortunately isn't super useful here, since it's not a debug build, so it's missing the debug symbols.

[DilumAluthge]

@Keno Is there a way to take an rr trace that was generated without debug symbols, and load the debug symbols in separately?