Ruby 3 (dev) tracking of issues

[raygun-ruby]

CPU peg observed

MiB Swap:    980,0 total,      0,0 free,    980,0 used.   3368,6 avail Mem 

    PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND                                                                                                                                                                                                    
1040965 raygun-ruby   20   0 2392048 380736      0 S 100,0   2,4   9:51.66 /usr/local/bin/ruby -w -Ilib:test:lib /usr/local/lib/ruby/gems/3.1.0/gems/rake-13.0.3/lib/rake/rake_test_loader.rb test/raygun/apm_gc_stress_test.rb test/raygun/apm_test.rb test/raygun/apm_thread_inher+ 

#0  futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x56008b982f44) at ../sysdeps/nptl/futex-internal.h:183
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x56008b983a78, cond=0x56008b982f18) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=cond@entry=0x56008b982f18, mutex=mutex@entry=0x56008b983a78) at pthread_cond_wait.c:638
#3  0x000056008aecc8eb in rb_native_cond_wait (mutex=0x56008b983a78, cond=0x56008b982f18) at thread_pthread.c:545
#4  gvl_acquire_common (gvl=gvl@entry=0x56008b983a70, th=th@entry=0x56008b982ea0) at thread_pthread.c:292
#5  0x000056008aeccdf4 in gvl_yield (th=0x56008b982ea0, gvl=0x56008b983a70) at thread_pthread.c:374
#6  rb_thread_schedule_limits (limits_us=limits_us@entry=0) at thread.c:1593
#7  0x000056008aed285f in rb_thread_schedule () at thread.c:1603
#8  0x00007f14a2660f85 in rb_rg_batched_sink (context=<optimized out>, userdata=0x560093c6f158, event=<optimized out>, buflen=<optimized out>) at ../../../../ext/raygun/raygun_tracer.c:580
#9  0x00007f14a265d975 in rg_begin (context=0x56009b150da0, userdata=userdata@entry=0x560093c6f158, tid=<optimized out>, func=<optimized out>, instance=instance@entry=139726589853520) at ../../../../ext/raygun/raygun_encoder.c:661
#10 0x00007f14a2661f3a in rb_rg_begin (tracer=tracer@entry=0x560093c6f080, trace_context=trace_context@entry=0x56008d06c280, tid=<optimized out>, instance=instance@entry=139726589853520, function_id=<optimized out>) at ../../../../ext/raygun/raygun_tracer.c:1204
#11 0x00007f14a26658b2 in rb_rg_tracing_hook_i (tpval=<optimized out>, data=0x56008d06c280) at ../../../../ext/raygun/raygun_tracer.c:1566
#12 0x000056008af355cd in tp_call_trace (tpval=<optimized out>, trace_arg=<optimized out>) at vm_trace.c:1119
#13 0x000056008af35726 in exec_hooks_body (ec=ec@entry=0x56008b983710, trace_arg=trace_arg@entry=0x7ffd2a122ff0, list=<optimized out>) at vm_trace.c:304
#14 0x000056008af35dd9 in exec_hooks_protected (ec=ec@entry=0x56008b983710, list=0x56008b983930, trace_arg=trace_arg@entry=0x7ffd2a122ff0) at vm_trace.c:351
#15 0x000056008af38974 in rb_exec_event_hooks (trace_arg=trace_arg@entry=0x7ffd2a122ff0, hooks=hooks@entry=0x56008b983930, pop_p=pop_p@entry=0) at vm_trace.c:395
#16 0x000056008af07ae5 in rb_exec_event_hook_orig (pop_p=0, data=52, klass=0, called_id=0, id=0, self=139726589853520, flag=8, hooks=0x56008b983930, ec=0x56008b983710) at vm_core.h:2002
#17 vm_trace_hook (reg_cfp=0x7f14a5e7b950, reg_cfp=0x7f14a5e7b950, pc=<optimized out>, val=52, local_hooks=0x0, global_hooks=0x56008b983930, target_event=266, pc_events=9, ec=0x56008b983710) at vm_insnhelper.c:5271
#18 vm_trace (ec=0x56008b983710, reg_cfp=0x7f14a5e7b950) at vm_insnhelper.c:5358
#19 0x000056008af22c1e in vm_exec_core (ec=0x56008b983710, initial=128) at vm.inc:4576
#20 0x000056008af161ae in rb_vm_exec (ec=<optimized out>, mjit_enable_p=true) at vm.c:2160
#21 0x000056008af19f1e in invoke_block (captured=<optimized out>, opt_pc=<optimized out>, type=<optimized out>, cref=0x0, self=139726593514000, iseq=0x7f14a1fb7bd0, ec=0x56008b983710) at vm.c:1260
#22 invoke_iseq_block_from_c (me=0x0, is_lambda=<optimized out>, cref=0x0, passed_block_handler=0, kw_splat=0, argv=0x7ffd2a1232d8, argc=1, self=139726593514000, captured=<optimized out>, ec=0x56008b983710) at vm.c:1332
#23 invoke_block_from_c_bh (argc=<optimized out>, kw_splat=<optimized out>, passed_block_handler=<optimized out>, cref=<optimized out>, is_lambda=<optimized out>, force_blockarg=<optimized out>, argv=<optimized out>, block_handler=<optimized out>, ec=<optimized out>)
    at vm.c:1350
#24 vm_yield (argc=1, kw_splat=0, argv=0x7ffd2a1232d8, ec=0x56008b983710) at vm.c:1395
#25 rb_yield_0 (argv=0x7ffd2a1232d8, argc=1) at vm_eval.c:1344
#26 rb_yield (val=<optimized out>) at vm_eval.c:1360

[raygun-ruby]

Faraday test segfault

/home/lourens/src/raygun-apm-ruby/test/raygun/http_out_test.rb:34:in `test_faraday'

-- Machine register context ------------------------------------------------
 RIP: 0x00007fdc30c61732 RBP: 0x00007ffdcfd1bbc0 RSP: 0x00007ffdcfd1b880
 RAX: 0x0000000000000000 RBX: 0x000055ee82f2d4e0 RCX: 0x0000000000000009
 RDX: 0xfb62864ff7b65f44 RDI: 0x000055ee82dcb2c0 RSI: 0x0000000000000001
  R8: 0x0000000000000000  R9: 0x000055ee80bfd5a0 R10: 0x0000000022220021
 R11: 0x000055ee820342a0 R12: 0x000055ee82d3cbe0 R13: 0x000055ee82d7da80
 R14: 0xfb62864ff7b65f44 R15: 0x0000000000000010 EFL: 0x0000000000010293

-- C level backtrace information -------------------------------------------
/usr/local/bin/ruby(rb_print_backtrace+0x11) [0x55ee80bfb739] vm_dump.c:759
/usr/local/bin/ruby(rb_vm_bugreport) vm_dump.c:1041
/usr/local/bin/ruby(rb_bug_for_fatal_signal+0xec) [0x55ee809f5d7c] error.c:800
/usr/local/bin/ruby(sigsegv+0x4d) [0x55ee80b5091d] signal.c:960
/lib/x86_64-linux-gnu/libpthread.so.0(__restore_rt+0x0) [0x7fdc34e1a3c0] ../sysdeps/pthread/funlockfile.c:28
/home/lourens/src/raygun-apm-ruby/lib/raygun/raygun_ext.so(rb_rg_tracing_hook_i+0x1cc) [0x7fdc30c61732] ../../../../ext/raygun/raygun_tracer.c:1592
/usr/local/bin/ruby(tp_call_trace+0x2d) [0x55ee80bfd5cd] vm_trace.c:1119
/usr/local/bin/ruby(exec_hooks_body+0x86) [0x55ee80bfd726] vm_trace.c:304
/usr/local/bin/ruby(exec_hooks_protected+0xe9) [0x55ee80bfddd9] vm_trace.c:351
/usr/local/bin/ruby(rb_exec_event_hooks+0x74) [0x55ee80c00974] vm_trace.c:395
/usr/local/bin/ruby(rb_exec_event_hook_orig+0x4c) [0x55ee80bd3b8d] vm_core.h:2002
/usr/local/bin/ruby(hook_before_rewind) vm.c:2005
/usr/local/bin/ruby(vm_exec_handle_exception+0x88) [0x55ee80bde420] vm.c:2383
/usr/local/bin/ruby(rb_vm_exec) vm.c:2167
/usr/local/bin/ruby(rb_yield+0x24e) [0x55ee80be1f1e] vm.c:1260
/usr/local/bin/ruby(RB_FL_TEST_RAW+0x0) [0x55ee80c0a9bc] array.c:2534
/usr/local/bin/ruby(RB_FL_ANY_RAW) ./include/ruby/internal/fl_type.h:295
/usr/local/bin/ruby(rb_array_len) ./include/ruby/internal/core/rarray.h:135
/usr/local/bin/ruby(rb_ary_each) array.c:2533
/usr/local/bin/ruby(vm_call_cfunc_with_frame+0x11b) [0x55ee80bd2ffb] vm_insnhelper.c:2943
/usr/local/bin/ruby(vm_sendish+0x303) [0x55ee80bdd553] vm_insnhelper.c:4516
/usr/local/bin/ruby(vm_exec_core+0x21b) [0x55ee80be7e3b] insns.def:754
/usr/local/bin/ruby(rb_vm_exec+0x18e) [0x55ee80bde1ae] vm.c:2160
/usr/local/bin/ruby(rb_yield+0x24e) [0x55ee80be1f1e] vm.c:1260
/usr/local/bin/ruby(RB_FL_TEST_RAW+0x0) [0x55ee80c10ed6] array.c:3657
/usr/local/bin/ruby(RB_FL_ANY_RAW) ./include/ruby/internal/fl_type.h:295
/usr/local/bin/ruby(rb_array_len) ./include/ruby/internal/core/rarray.h:135
/usr/local/bin/ruby(rb_ary_push) array.c:1314
/usr/local/bin/ruby(rb_ary_collect) array.c:3657
/usr/local/bin/ruby(vm_call_cfunc_with_frame+0x11b) [0x55ee80bd2ffb] vm_insnhelper.c:2943
/usr/local/bin/ruby(vm_sendish+0x303) [0x55ee80bdd553] vm_insnhelper.c:4516
/usr/local/bin/ruby(vm_exec_core+0x21b) [0x55ee80be7e3b] insns.def:754
/usr/local/bin/ruby(rb_vm_exec+0x18e) [0x55ee80bde1ae] vm.c:2160
/usr/local/bin/ruby(rb_vm_invoke_proc+0x33) [0x55ee80be2bc3] vm.c:1482
/usr/local/bin/ruby(rb_proc_call+0x6e) [0x55ee80aef43e] proc.c:1001
/usr/local/bin/ruby(exec_end_procs_chain+0x44) [0x55ee809feabd] eval_jump.c:105
/usr/local/bin/ruby(rb_ec_exec_end_proc) eval_jump.c:120
/usr/local/bin/ruby(rb_ec_teardown+0xd5) [0x55ee809fecd5] eval.c:175
/usr/local/bin/ruby(rb_ec_cleanup+0x1c1) [0x55ee809fef41] eval.c:243
/usr/local/bin/ruby(ruby_run_node+0x59) [0x55ee809ff9a9] eval.c:375
/usr/local/bin/ruby(main+0x73) [0x55ee809f1d13] ./main.c:47

(gdb) bt
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#1  0x00007fdc34a17859 in __GI_abort () at abort.c:79
#2  0x000055ee809ee46c in die () at error.c:804
#3  rb_bug_for_fatal_signal (default_sighandler=0x0, sig=sig@entry=11, ctx=ctx@entry=0x55ee8178e4c0, fmt=fmt@entry=0x55ee80cdfbaf "Segmentation fault at %p") at error.c:804
#4  0x000055ee80b5091d in sigsegv (sig=11, info=0x55ee8178e5f0, ctx=0x55ee8178e4c0) at signal.c:960
#5  <signal handler called>
#6  rb_rg_tracing_hook_i (tpval=<optimized out>, data=0x55ee82f2d4e0) at ../../../../ext/raygun/raygun_tracer.c:1597
#7  0x000055ee80bfd5cd in tp_call_trace (tpval=<optimized out>, trace_arg=<optimized out>) at vm_trace.c:1119
#8  0x000055ee80bfd726 in exec_hooks_body (ec=ec@entry=0x55ee816f8710, trace_arg=trace_arg@entry=0x7ffdcfd1bbc0, list=<optimized out>) at vm_trace.c:304
#9  0x000055ee80bfddd9 in exec_hooks_protected (ec=ec@entry=0x55ee816f8710, list=0x55ee816f8930, trace_arg=trace_arg@entry=0x7ffdcfd1bbc0) at vm_trace.c:351
#10 0x000055ee80c00974 in rb_exec_event_hooks (trace_arg=trace_arg@entry=0x7ffdcfd1bbc0, hooks=<optimized out>, pop_p=pop_p@entry=1) at vm_trace.c:395
#11 0x000055ee80bd3b8d in rb_exec_event_hook_orig (pop_p=1, data=<optimized out>, klass=0, called_id=0, id=0, self=<optimized out>, flag=16, hooks=<optimized out>, ec=0x55ee816f8710) at vm_core.h:2002
#12 hook_before_rewind (ec=0x55ee816f8710, will_finish_vm_exec=0, state=<optimized out>, err=0x7fdc301e6658, cfp=<optimized out>) at vm.c:2005
#13 0x000055ee80bde420 in vm_exec_handle_exception (initial=<synthetic pointer>, errinfo=140583676831320, state=<optimized out>, ec=0x55ee816f8710) at vm.c:2383
#14 rb_vm_exec (ec=<optimized out>, mjit_enable_p=true) at vm.c:2167
#15 0x000055ee80be1f1e in invoke_block (captured=<optimized out>, opt_pc=<optimized out>, type=<optimized out>, cref=0x0, self=140583677144520, iseq=0x7fdc305b3178, ec=0x55ee816f8710) at vm.c:1260
#16 invoke_iseq_block_from_c (me=0x0, is_lambda=<optimized out>, cref=0x0, passed_block_handler=0, kw_splat=0, argv=0x7ffdcfd1bdc8, argc=1, self=140583677144520, captured=<optimized out>, ec=0x55ee816f8710) at vm.c:1332
#17 invoke_block_from_c_bh (argc=<optimized out>, kw_splat=<optimized out>, passed_block_handler=<optimized out>, cref=<optimized out>, is_lambda=<optimized out>, force_blockarg=<optimized out>, argv=<optimized out>, block_handler=<optimized out>, ec=<optimized out>)
    at vm.c:1350
#18 vm_yield (argc=1, kw_splat=0, argv=0x7ffdcfd1bdc8, ec=0x55ee816f8710) at vm.c:1395
#19 rb_yield_0 (argv=0x7ffdcfd1bdc8, argc=1) at vm_eval.c:1344
#20 rb_yield (val=<optimized out>) at vm_eval.c:1360
#21 0x000055ee80c0a9bc in rb_ary_each (ary=140583676073240) at ./include/ruby/internal/core/rarray.h:172
#22 0x000055ee80bd2ffb in vm_call_cfunc_with_frame (ec=0x55ee816f8710, reg_cfp=0x7fdc3447dde0, calling=<optimized out>) at vm_insnhelper.c:2943
#23 0x000055ee80bdd553 in vm_sendish (ec=0x55ee816f8710, reg_cfp=0x7fdc3447dde0, cd=0x55ee82b8a1a0, block_handler=<optimized out>, method_explorer=<optimized out>) at vm_callinfo.h:336
#24 0x000055ee80be7e3b in vm_exec_core (ec=0x55ee816f8710, initial=1) at insns.def:754
#25 0x000055ee80bde1ae in rb_vm_exec (ec=<optimized out>, mjit_enable_p=true) at vm.c:2160
#26 0x000055ee80be1f1e in invoke_block (captured=<optimized out>, opt_pc=<optimized out>, type=<optimized out>, cref=0x0, self=140583687214000, iseq=0x7fdc30c004e0, ec=0x55ee816f8710) at vm.c:1260
#27 invoke_iseq_block_from_c (me=0x0, is_lambda=<optimized out>, cref=0x0, passed_block_handler=0, kw_splat=0, argv=0x7ffdcfd1c1b8, argc=1, self=140583687214000, captured=<optimized out>, ec=0x55ee816f8710) at vm.c:1332
#28 invoke_block_from_c_bh (argc=<optimized out>, kw_splat=<optimized out>, passed_block_handler=<optimized out>, cref=<optimized out>, is_lambda=<optimized out>, force_blockarg=<optimized out>, argv=<optimized out>, block_handler=<optimized out>, ec=<optimized out>)
    at vm.c:1350
#29 vm_yield (argc=1, kw_splat=0, argv=0x7ffdcfd1c1b8, ec=0x55ee816f8710) at vm.c:1395
#30 rb_yield_0 (argv=0x7ffdcfd1c1b8, argc=1) at vm_eval.c:1344
#31 rb_yield (val=<optimized out>) at vm_eval.c:1360
#32 0x000055ee80c10ed6 in rb_ary_collect (ary=140583676847680) at ./include/ruby/internal/core/rarray.h:172
#33 0x000055ee80bd2ffb in vm_call_cfunc_with_frame (ec=0x55ee816f8710, reg_cfp=0x7fdc3447df30, calling=<optimized out>) at vm_insnhelper.c:2943
#34 0x000055ee80bdd553 in vm_sendish (ec=0x55ee816f8710, reg_cfp=0x7fdc3447df30, cd=0x55ee826d4370, block_handler=<optimized out>, method_explorer=<optimized out>) at vm_callinfo.h:336
#35 0x000055ee80be7e3b in vm_exec_core (ec=0x55ee816f8710, initial=1) at insns.def:754
#36 0x000055ee80bde1ae in rb_vm_exec (ec=<optimized out>, mjit_enable_p=true) at vm.c:2160
#37 0x000055ee80be2bc3 in rb_vm_invoke_proc (ec=<optimized out>, proc=proc@entry=0x55ee82a17550, argc=<optimized out>, argv=<optimized out>, kw_splat=kw_splat@entry=0, passed_block_handler=passed_block_handler@entry=0) at vm.c:1482
#38 0x000055ee80aef43e in rb_proc_call (self=<optimized out>, args=<optimized out>) at vm_core.h:1826
#39 0x000055ee809feabd in exec_end_procs_chain (errp=0x55ee816f8788, procs=0x55ee80dbb5b0 <end_procs>) at eval_jump.c:105
#40 rb_ec_exec_end_proc (ec=ec@entry=0x55ee816f8710) at eval_jump.c:120
#41 0x000055ee809fecd5 in rb_ec_teardown (ec=ec@entry=0x55ee816f8710) at eval.c:175
#42 0x000055ee809fef41 in rb_ec_cleanup (ec=ec@entry=0x55ee816f8710, ex=<optimized out>) at eval.c:243
#43 0x000055ee809ff9a9 in ruby_run_node (n=0x7fdc30cb0318) at eval.c:375
#44 0x000055ee809f1d13 in main (argc=<optimized out>, argv=<optimized out>) at ./main.c:47

[raygun-ruby]

Test runs existed early does not shutdown cleanly and pegs CPU:

top - 10:20:41 up 102 days, 10:41,  1 user,  load average: 5,73, 5,44, 5,31
Tasks: 361 total,   1 running, 360 sleeping,   0 stopped,   0 zombie
%Cpu(s): 67,1 us,  1,4 sy,  0,0 ni, 30,0 id,  0,0 wa,  0,0 hi,  1,4 si,  0,0 st
MiB Mem :  15755,5 total,    209,7 free,   8888,7 used,   6657,1 buff/cache
MiB Swap:    980,0 total,    238,7 free,    741,3 used.   5762,8 avail Mem 

    PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND                                                                                                                                                                                                    
1053043 ruby-apm  20   0   20,9g 308344  94192 S 137,5   1,9  26:38.30 .electron-wrapp                                                                                                                                                                                            
1040965 ruby-apm   20   0 3900600   1,5g      0 S 100,0   9,6 291:30.40 ruby                                                                                                                                                                                                       
1042672 ruby-apm   20   0  689064  71912   2928 S 100,0   0,4 275:08.97 ruby                                                                                                                                                                                                       
1068549 ruby-apm   20   0 2581128 364860  10620 S 100,0   2,3  33:03.67 ruby

[raygun-ruby]

Ruby backtrace for the pegged process:

lourens@CarbonX1:~/src/redmine$ sudo gdb --eval-command="p \"$(tty)\"" program $(pgrep -n ruby)
GNU gdb (Ubuntu 9.2-0ubuntu1~20.04) 9.2
Copyright (C) 2020 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
    <http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".
Type "apropos word" to search for commands related to "word"...
program: No such file or directory.
Attaching to process 1116204
[New LWP 1116205]
[New LWP 1116206]
[New LWP 1116207]
[New LWP 1116213]
[New LWP 1116214]
[New LWP 1116215]
[New LWP 1116216]
[New LWP 1116220]
[New LWP 1116221]
[New LWP 1116223]
[New LWP 1116227]
[New LWP 1116228]
[New LWP 1116229]
[New LWP 1116230]
[New LWP 1116232]
[New LWP 1116234]
[New LWP 1116345]
[New LWP 1116356]
[New LWP 1116363]
[New LWP 1116365]
[New LWP 1116376]
[New LWP 1116392]
[New LWP 1116398]
[New LWP 1116691]
[New LWP 1117126]
[New LWP 1117167]
[New LWP 1117203]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560d23722f44) at ../sysdeps/nptl/futex-internal.h:183
183	../sysdeps/nptl/futex-internal.h: No such file or directory.
$1 = "/dev/pts/2"
(gdb) call close(2)
$2 = 0
(gdb) call open($1, 1)
$3 = 2
(gdb) call (void) rb_backtrace()
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:68:in `block in autorun'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:141:in `run'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:164:in `__run'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:164:in `map'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:164:in `block in __run'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:326:in `run'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:354:in `with_info_handler'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:367:in `on_signal'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:327:in `block in run'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:327:in `each'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:328:in `block (2 levels) in run'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:341:in `run_one_method'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:1029:in `run_one_method'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest/test.rb:93:in `run'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest/test.rb:211:in `with_info_handler'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:367:in `on_signal'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest/test.rb:94:in `block in run'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:272:in `time_it'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest/test.rb:95:in `block (2 levels) in run'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest/test.rb:195:in `capture_exceptions'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest/test.rb:98:in `block (3 levels) in run'
	from /home/lourens/src/raygun-apm-ruby/test/raygun/apm_test.rb:63:in `test_synchronization_source'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest/assertions.rb:218:in `assert_equal'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest/assertions.rb:182:in `assert'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest/assertions.rb:615:in `block in message'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest/assertions.rb:217:in `block in assert_equal'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest/assertions.rb:67:in `diff'
	from /usr/local/lib/ruby/3.1.0/tempfile.rb:317:in `open'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest/assertions.rb:71:in `block in diff'
	from /usr/local/lib/ruby/3.1.0/tempfile.rb:313:in `open'
	from /usr/local/lib/ruby/3.1.0/tempfile.rb:313:in `new'
	from /usr/local/lib/ruby/3.1.0/tempfile.rb:139:in `initialize'
	from /usr/local/lib/ruby/3.1.0/tmpdir.rb:141:in `create'
	from /usr/local/lib/ruby/3.1.0/tmpdir.rb:123:in `next'
	from /home/lourens/src/raygun-apm-ruby/lib/raygun/apm/hooks/internals.rb:61:in `rand'

[raygun-ruby]

Threads at time of dumping the ruby backtrace:

(gdb) info threads
  Id   Target Id                                            Frame 
* 1    Thread 0x7f54c820cb80 (LWP 1116204) "ruby"           futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560d23722f44) at ../sysdeps/nptl/futex-internal.h:183
  2    Thread 0x7f54c393b700 (LWP 1116205) "parallel.rb:28" 0x00007f54c8323bf6 in __ppoll (fds=fds@entry=0x7f54c383a638, nfds=nfds@entry=1, timeout=<optimized out>, sigmask=sigmask@entry=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:44
  3    Thread 0x7f54c373a700 (LWP 1116206) "parallel.rb:28" futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560d2504c3b4) at ../sysdeps/nptl/futex-internal.h:183
  4    Thread 0x7f54c3539700 (LWP 1116207) "raygun timer"   __tls_get_addr () at ../sysdeps/x86_64/tls_get_addr.S:33
  5    Thread 0x7f54c3338700 (LWP 1116213) "raygun timer"   futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560d24d9b144) at ../sysdeps/nptl/futex-internal.h:183
  6    Thread 0x7f54c3137700 (LWP 1116214) "raygun timer"   futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560d24e3f9f0) at ../sysdeps/nptl/futex-internal.h:183
  7    Thread 0x7f54c2f36700 (LWP 1116215) "raygun timer"   futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560d25de8120) at ../sysdeps/nptl/futex-internal.h:183
  8    Thread 0x7f54c2d35700 (LWP 1116216) "raygun timer"   futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560d24d56110) at ../sysdeps/nptl/futex-internal.h:183
  9    Thread 0x7f54c2b34700 (LWP 1116220) "raygun timer"   futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560d24f55a44) at ../sysdeps/nptl/futex-internal.h:183
  10   Thread 0x7f54c2933700 (LWP 1116221) "raygun timer"   futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560d24d5c9e4) at ../sysdeps/nptl/futex-internal.h:183
  11   Thread 0x7f54c2732700 (LWP 1116223) "raygun timer"   futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7f54c2631b20, clockid=<optimized out>, expected=0, futex_word=0x560d24d1b440) at ../sysdeps/nptl/futex-internal.h:320
  12   Thread 0x7f54c2531700 (LWP 1116227) "raygun timer"   futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560d24ccfff4) at ../sysdeps/nptl/futex-internal.h:183
  13   Thread 0x7f54c2330700 (LWP 1116228) "raygun timer"   futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560d24988e44) at ../sysdeps/nptl/futex-internal.h:183
  14   Thread 0x7f54c212f700 (LWP 1116229) "raygun timer"   futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560d24e18330) at ../sysdeps/nptl/futex-internal.h:183
  15   Thread 0x7f54c1f2e700 (LWP 1116230) "raygun timer"   futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560d24f7df64) at ../sysdeps/nptl/futex-internal.h:183
  16   Thread 0x7f54c1d2d700 (LWP 1116232) "raygun timer"   futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560d2660f6d4) at ../sysdeps/nptl/futex-internal.h:183
  17   Thread 0x7f54c1b2c700 (LWP 1116234) "raygun timer"   futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560d28accd54) at ../sysdeps/nptl/futex-internal.h:183
  18   Thread 0x7f54c192b700 (LWP 1116345) "raygun timer"   futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560d26f63ae4) at ../sysdeps/nptl/futex-internal.h:183
  19   Thread 0x7f54c172a700 (LWP 1116356) "raygun timer"   futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560d2860f9b0) at ../sysdeps/nptl/futex-internal.h:183
  20   Thread 0x7f54c150b700 (LWP 1116363) "raygun timer"   futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560d24cf98b0) at ../sysdeps/nptl/futex-internal.h:183
  21   Thread 0x7f54c130a700 (LWP 1116365) "raygun timer"   futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560d24c5b520) at ../sysdeps/nptl/futex-internal.h:183
  22   Thread 0x7f54c1109700 (LWP 1116376) "raygun timer"   futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560d24d4f3a0) at ../sysdeps/nptl/futex-internal.h:183
  23   Thread 0x7f54c0f08700 (LWP 1116392) "raygun timer"   futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560d28cb4560) at ../sysdeps/nptl/futex-internal.h:183
  24   Thread 0x7f54c0306700 (LWP 1116398) "raygun timer"   futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560d2c6540d4) at ../sysdeps/nptl/futex-internal.h:183
  25   Thread 0x7f5463fff700 (LWP 1116691) "raygun timer"   futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560d2c7ed484) at ../sysdeps/nptl/futex-internal.h:183
  26   Thread 0x7f5463dfe700 (LWP 1117126) "raygun timer"   futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560d2cc99a10) at ../sysdeps/nptl/futex-internal.h:183
  27   Thread 0x7f5463bfd700 (LWP 1117167) "raygun timer"   futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560d2d374020) at ../sysdeps/nptl/futex-internal.h:183
  28   Thread 0x7f54639fc700 (LWP 1117203) "raygun timer"   futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x560d2b908ae0) at ../sysdeps/nptl/futex-internal.h:183

[raygun-ruby]

latest SHA for the above context:

commit 3208a5df2dfb429752a130a36274464e9924cf44 (HEAD -> master, origin/master)
Author: S.H <gamelinks007@gmail.com>
Date:   Sat Jun 5 13:57:21 2021 +0900

    Improve perfomance for Integer#size method [Feature #17135] (#3476)
    
    * Improve perfomance for Integer#size method [Feature #17135]
    
    * re-run ci
    
    * Let MJIT frame skip work for Integer#size
    
    Co-authored-by: Takashi Kokubun <takashikkbn@gmail.com>

[raygun-ruby]

Another path with the same behaviour:

(gdb) call (void) rb_backtrace()
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:68:in `block in autorun'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:141:in `run'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:164:in `__run'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:164:in `map'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:164:in `block in __run'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:326:in `run'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:354:in `with_info_handler'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:367:in `on_signal'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:327:in `block in run'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:327:in `each'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:328:in `block (2 levels) in run'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:341:in `run_one_method'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:1029:in `run_one_method'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest/test.rb:93:in `run'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest/test.rb:211:in `with_info_handler'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:367:in `on_signal'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest/test.rb:94:in `block in run'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest.rb:272:in `time_it'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest/test.rb:95:in `block (2 levels) in run'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest/test.rb:195:in `capture_exceptions'
	from /usr/local/lib/ruby/gems/3.1.0/gems/minitest-5.14.4/lib/minitest/test.rb:98:in `block (3 levels) in run'
	from /home/lourens/src/raygun-apm-ruby/test/raygun/event_test.rb:472:in `test_interleaved_larger_sql_events_spree_segfault'
	from /home/lourens/src/raygun-apm-ruby/test/raygun/event_test.rb:472:in `times'
	from /home/lourens/src/raygun-apm-ruby/test/raygun/event_test.rb:481:in `block in test_interleaved_larger_sql_events_spree_segfault'
	from /home/lourens/src/raygun-apm-ruby/test/raygun/event_test.rb:481:in `times'
	from /home/lourens/src/raygun-apm-ruby/test/raygun/event_test.rb:481:in `block (2 levels) in test_interleaved_larger_sql_events_spree_segfault'
	from /home/lourens/src/raygun-apm-ruby/test/subject.rb:14:in `simple_call'
(gdb) bt
#0  futex_abstimed_wait_cancelable (private=<optimized out>, abstime=0x7ffcc77e3320, clockid=<optimized out>, expected=0, futex_word=0x55ee1bab5f44) at ../sysdeps/nptl/futex-internal.h:320
#1  __pthread_cond_wait_common (abstime=0x7ffcc77e3320, clockid=<optimized out>, mutex=0x55ee1bab6a78, cond=0x55ee1bab5f18) at pthread_cond_wait.c:520
#2  __pthread_cond_timedwait (cond=cond@entry=0x55ee1bab5f18, mutex=mutex@entry=0x55ee1bab6a78, abstime=abstime@entry=0x7ffcc77e3320) at pthread_cond_wait.c:656
#3  0x000055ee1b7aeee1 in native_cond_timedwait (abs=<optimized out>, mutex=<optimized out>, cond=<optimized out>) at thread_pthread.c:565
#4  do_gvl_timer (th=0x55ee1bab5ea0, gvl=0x55ee1bab6a70) at thread_pthread.c:251
#5  gvl_acquire_common (gvl=gvl@entry=0x55ee1bab6a70, th=th@entry=0x55ee1bab5ea0) at thread_pthread.c:289
#6  0x000055ee1b7af364 in gvl_yield (th=0x55ee1bab5ea0, gvl=0x55ee1bab6a70) at thread_pthread.c:374
#7  rb_thread_schedule_limits (limits_us=limits_us@entry=0) at thread.c:1593
#8  0x000055ee1b7b4ddf in rb_thread_schedule () at thread.c:1603
#9  0x00007fe019f90f85 in rb_rg_batched_sink (context=<optimized out>, userdata=0x55ee1d444f98, event=<optimized out>, buflen=<optimized out>) at ../../../../ext/raygun/raygun_tracer.c:580
#10 0x00007fe019f8da28 in rg_end (context=0x55ee1d446060, userdata=userdata@entry=0x55ee1d444f98, tid=<optimized out>, func=func@entry=1, returnvalue=returnvalue@entry=0x7fe019f9e910 <return_value>) at ../../../../ext/raygun/raygun_encoder.c:684
#11 0x00007fe019f91ff3 in rb_rg_end (tracer=tracer@entry=0x55ee1d444ec0, trace_context=trace_context@entry=0x55ee1cd75b30, tid=<optimized out>, function_id=function_id@entry=1, returnvalue=returnvalue@entry=0x7fe019f9e910 <return_value>)
    at ../../../../ext/raygun/raygun_tracer.c:1215
#12 0x00007fe019f9578b in rb_rg_tracing_hook_i (tpval=<optimized out>, data=0x55ee1cd75b30) at ../../../../ext/raygun/raygun_tracer.c:1642
#13 0x000055ee1b817b6d in tp_call_trace (tpval=<optimized out>, trace_arg=<optimized out>) at vm_trace.c:1119
#14 0x000055ee1b817cc6 in exec_hooks_body (ec=ec@entry=0x55ee1bab6710, trace_arg=trace_arg@entry=0x7ffcc77e7820, list=<optimized out>) at vm_trace.c:304
#15 0x000055ee1b818379 in exec_hooks_protected (ec=ec@entry=0x55ee1bab6710, list=0x55ee1bab6930, trace_arg=trace_arg@entry=0x7ffcc77e7820) at vm_trace.c:351
#16 0x000055ee1b81af14 in rb_exec_event_hooks (trace_arg=trace_arg@entry=0x7ffcc77e7820, hooks=<optimized out>, pop_p=pop_p@entry=0) at vm_trace.c:395
#17 0x000055ee1b7ea2a0 in rb_exec_event_hook_orig (pop_p=0, data=8, klass=0, called_id=0, id=0, self=140600478971880, flag=16, hooks=<optimized out>, ec=0x55ee1bab6710) at vm_core.h:2002
#18 vm_trace_hook (reg_cfp=0x7fe01d7b29f0, reg_cfp=0x7fe01d7b29f0, pc=<optimized out>, val=8, local_hooks=0x0, global_hooks=<optimized out>, target_event=532, pc_events=<optimized out>, ec=0x55ee1bab6710) at vm_insnhelper.c:5271
#19 vm_trace (ec=0x55ee1bab6710, reg_cfp=0x7fe01d7b29f0) at vm_insnhelper.c:5362
#20 0x000055ee1b803ea0 in vm_exec_core (ec=0x55ee1bab6710, initial=137) at vm.inc:4968
#21 0x000055ee1b7f874e in rb_vm_exec (ec=<optimized out>, mjit_enable_p=true) at vm.c:2160
#22 0x000055ee1b7fbe2f in invoke_block (captured=<optimized out>, opt_pc=<optimized out>, type=<optimized out>, cref=0x0, self=140600478973840, iseq=0x7fe0196f3578, ec=0x55ee1bab6710) at vm.c:1260
#23 invoke_iseq_block_from_c (me=0x0, is_lambda=<optimized out>, cref=0x0, passed_block_handler=0, kw_splat=0, argv=0x7ffcc77e7b08, argc=1, self=140600478973840, captured=<optimized out>, ec=0x55ee1bab6710) at vm.c:1332
#24 invoke_block_from_c_bh (argc=<optimized out>, kw_splat=<optimized out>, passed_block_handler=<optimized out>, cref=<optimized out>, is_lambda=<optimized out>, force_blockarg=<optimized out>, argv=<optimized out>, block_handler=<optimized out>, ec=<optimized out>)
    at vm.c:1350
#25 vm_yield (argc=1, kw_splat=0, argv=0x7ffcc77e7b08, ec=0x55ee1bab6710) at vm.c:1395
#26 rb_yield_0 (argv=0x7ffcc77e7b08, argc=1) at vm_eval.c:1344
#27 rb_yield_1 (val=<optimized out>, val@entry=15) at vm_eval.c:1350
#28 0x000055ee1b6bd56c in int_dotimes (num=19) at ./include/ruby/internal/arithmetic/long.h:95
#29 0x000055ee1b7ed59b in vm_call_cfunc_with_frame (ec=0x55ee1bab6710, reg_cfp=0x7fe01d7b2a98, calling=<optimized out>) at vm_insnhelper.c:2943
#30 0x000055ee1b7f7af3 in vm_sendish (ec=0x55ee1bab6710, reg_cfp=0x7fe01d7b2a98, cd=0x55ee1d01e5e0, block_handler=<optimized out>, method_explorer=<optimized out>) at vm_callinfo.h:336
#31 0x000055ee1b8023db in vm_exec_core (ec=0x55ee1bab6710, initial=137) at insns.def:754
#32 0x000055ee1b7f874e in rb_vm_exec (ec=<optimized out>, mjit_enable_p=true) at vm.c:2160
#33 0x000055ee1b7fbe2f in invoke_block (captured=<optimized out>, opt_pc=<optimized out>, type=<optimized out>, cref=0x0, self=140600478973840, iseq=0x7fe0196f3758, ec=0x55ee1bab6710) at vm.c:1260
#34 invoke_iseq_block_from_c (me=0x0, is_lambda=<optimized out>, cref=0x0, passed_block_handler=0, kw_splat=0, argv=0x7ffcc77e7f08, argc=1, self=140600478973840, captured=<optimized out>, ec=0x55ee1bab6710) at vm.c:1332
#35 invoke_block_from_c_bh (argc=<optimized out>, kw_splat=<optimized out>, passed_block_handler=<optimized out>, cref=<optimized out>, is_lambda=<optimized out>, force_blockarg=<optimized out>, argv=<optimized out>, block_handler=<optimized out>, ec=<optimized out>)
    at vm.c:1350
#36 vm_yield (argc=1, kw_splat=0, argv=0x7ffcc77e7f08, ec=0x55ee1bab6710) at vm.c:1395
#37 rb_yield_0 (argv=0x7ffcc77e7f08, argc=1) at vm_eval.c:1344
#38 rb_yield_1 (val=<optimized out>, val@entry=523) at vm_eval.c:1350

[raygun-ruby]

And ctrl + C on the that state:

Core was generated by `/usr/local/bin/ruby -w -Ilib:test:lib /usr/local/lib/ruby/gems/3.1.0/gems/rake-'.
Program terminated with signal SIGABRT, Aborted.
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
50	../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
[Current thread is 1 (Thread 0x7fe01dd25b80 (LWP 1117703))]
(gdb) bt
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#1  0x00007fe01dd4c859 in __GI_abort () at abort.c:79
#2  0x000055ee1b60746c in die () at error.c:804
#3  rb_bug_for_fatal_signal (default_sighandler=0x0, sig=sig@entry=11, ctx=ctx@entry=0x55ee1bb4c2c0, fmt=fmt@entry=0x55ee1b8fae0f "Segmentation fault at %p") at error.c:804
#4  0x000055ee1b76ae8d in sigsegv (sig=11, info=0x55ee1bb4c3f0, ctx=0x55ee1bb4c2c0) at signal.c:960
#5  <signal handler called>
#6  0x000055ee1b7772f2 in do_hash (tab=0x55ee1d41b200, key=140600485541896) at st.c:1010
#7  rb_st_lookup (tab=0x55ee1d41b200, key=140600485541896, value=value@entry=0x7ffcc77e3b70) at st.c:1010
#8  0x00007fe019f93b60 in rb_rg_fill_class_and_method (method_name=0x7ffcc77e3b68, class_name=0x7ffcc77e3b60, flag=8, tparg=0x7ffcc77e8020, namespace=<optimized out>, tracer=0x55ee1d444ec0) at ../../../../ext/raygun/raygun_tracer.c:1015
#9  rb_rg_methodinfo (tracer=tracer@entry=0x55ee1d444ec0, trace_context=trace_context@entry=0x55ee1cd75b30, tid=1, namespace=<optimized out>, method=method@entry=10690832140255645505, flag=flag@entry=8, tparg=0x7ffcc77e8020) at ../../../../ext/raygun/raygun_tracer.c:1245
#10 0x00007fe019f959f1 in rb_rg_tracing_hook_i (tpval=<optimized out>, data=0x55ee1cd75b30) at ../../../../ext/raygun/raygun_tracer.c:1516
#11 0x000055ee1b817b6d in tp_call_trace (tpval=<optimized out>, trace_arg=<optimized out>) at vm_trace.c:1119
#12 0x000055ee1b817cc6 in exec_hooks_body (ec=ec@entry=0x55ee1bab6710, trace_arg=trace_arg@entry=0x7ffcc77e8020, list=<optimized out>) at vm_trace.c:304
#13 0x000055ee1b818379 in exec_hooks_protected (ec=ec@entry=0x55ee1bab6710, list=0x55ee1bab6930, trace_arg=trace_arg@entry=0x7ffcc77e8020) at vm_trace.c:351
#14 0x000055ee1b81af14 in rb_exec_event_hooks (trace_arg=trace_arg@entry=0x7ffcc77e8020, hooks=hooks@entry=0x55ee1bab6930, pop_p=pop_p@entry=0) at vm_trace.c:395
#15 0x000055ee1b7ea085 in rb_exec_event_hook_orig (pop_p=0, data=52, klass=0, called_id=0, id=0, self=140600484764880, flag=8, hooks=0x55ee1bab6930, ec=0x55ee1bab6710) at vm_core.h:2002
#16 vm_trace_hook (reg_cfp=0x7fe01d7b2b78, reg_cfp=0x7fe01d7b2b78, pc=<optimized out>, val=52, local_hooks=0x0, global_hooks=0x55ee1bab6930, target_event=266, pc_events=9, ec=0x55ee1bab6710) at vm_insnhelper.c:5271
#17 vm_trace (ec=0x55ee1bab6710, reg_cfp=0x7fe01d7b2b78) at vm_insnhelper.c:5358
#18 0x000055ee1b80455a in vm_exec_core (ec=0x55ee1bab6710, initial=140600485541896) at vm.inc:5016
#19 0x000055ee1b7f8f3d in rb_vm_exec (ec=<optimized out>, mjit_enable_p=true) at vm.c:2169
#20 0x000055ee1b7fc4be in invoke_block (captured=<optimized out>, opt_pc=<optimized out>, type=<optimized out>, cref=0x0, self=140600476119600, iseq=0x7fe019f2fd68, ec=0x55ee1bab6710) at vm.c:1260
#21 invoke_iseq_block_from_c (me=0x0, is_lambda=<optimized out>, cref=0x0, passed_block_handler=0, kw_splat=0, argv=0x7ffcc77e8308, argc=1, self=140600476119600, captured=<optimized out>, ec=0x55ee1bab6710) at vm.c:1332
#22 invoke_block_from_c_bh (argc=<optimized out>, kw_splat=<optimized out>, passed_block_handler=<optimized out>, cref=<optimized out>, is_lambda=<optimized out>, force_blockarg=<optimized out>, argv=<optimized out>, block_handler=<optimized out>, ec=<optimized out>)
    at vm.c:1350
#23 vm_yield (argc=1, kw_splat=0, argv=0x7ffcc77e8308, ec=0x55ee1bab6710) at vm.c:1395
#24 rb_yield_0 (argv=0x7ffcc77e8308, argc=1) at vm_eval.c:1344
#25 rb_yield (val=<optimized out>) at vm_eval.c:1360
#26 0x000055ee1b824f5c in rb_ary_each (ary=140600477757960) at ./include/ruby/internal/core/rarray.h:172
#27 0x000055ee1b7ed59b in vm_call_cfunc_with_frame (ec=0x55ee1bab6710, reg_cfp=0x7fe01d7b2de0, calling=<optimized out>) at vm_insnhelper.c:2943
#28 0x000055ee1b7f7af3 in vm_sendish (ec=0x55ee1bab6710, reg_cfp=0x7fe01d7b2de0, cd=0x55ee1ca755e0, block_handler=<optimized out>, method_explorer=<optimized out>) at vm_callinfo.h:336
#29 0x000055ee1b8023db in vm_exec_core (ec=0x55ee1bab6710, initial=140600485541896) at insns.def:754
#30 0x000055ee1b7f874e in rb_vm_exec (ec=<optimized out>, mjit_enable_p=true) at vm.c:2160
#31 0x000055ee1b7fc4be in invoke_block (captured=<optimized out>, opt_pc=<optimized out>, type=<optimized out>, cref=0x0, self=140600484764880, iseq=0x7fe019f29a30, ec=0x55ee1bab6710) at vm.c:1260
#32 invoke_iseq_block_from_c (me=0x0, is_lambda=<optimized out>, cref=0x0, passed_block_handler=0, kw_splat=0, argv=0x7ffcc77e86f8, argc=1, self=140600484764880, captured=<optimized out>, ec=0x55ee1bab6710) at vm.c:1332
#33 invoke_block_from_c_bh (argc=<optimized out>, kw_splat=<optimized out>, passed_block_handler=<optimized out>, cref=<optimized out>, is_lambda=<optimized out>, force_blockarg=<optimized out>, argv=<optimized out>, block_handler=<optimized out>, ec=<optimized out>)
    at vm.c:1350

[raygun-ruby]

All fine with this release though (April 5th), ruby dev3 unreleased seems super flakey and also slow as per the above comments, but the actual released ruby 3 is fine:

commit 0fb782ee38ea37fd5fe8b1f775f8ad866a82a3f0 (HEAD, tag: v3_0_1)
Author: Nobuyoshi Nakada <nobu@ruby-lang.org>
Date:   Mon Apr 5 21:20:51 2021 +0900

    Get rid of multibyte prefix to tmpdir

commit 6cdc36a60d7fbf4b218785087b1c3a91682bc147