Result of trunk_asan@ruby-sp1 at 2026-03-24 16:50:18 +0900

NG (60116d5ee1)[LOG]
test-all:
test-spec: 3430 files, 34262 examples, 193128 expectations, 0 failures, 0 errors, 0 tagged

commands:

 "make update-download -j16" exit with 0.
"make update-src      -j16" exit with 0.
"make after-update    -j16" exit with 0.
"make miniruby -j16" exit with 0.
"make ruby -j16" exit with 0.
"make all -j16" exit with 0.
"make install -j16" exit with 0.
"make yes-test-basic TESTS='-j16'" exit with 0.
"make yes-test-all TESTOPTS='--stderr-on-failure' TESTS='-j16'" exit with 512.
/tmp/ruby/src/trunk_asan/test/json/json_encoding_test.rb:149: [BUG] Segmentation fault at 0x0000000000000000
ruby 4.1.0dev (2026-03-24T07:35:33Z master 60116d5ee1) +PRISM [x86_64-linux]
-- Control frame information -----------------------------------------------
c:0016 p:0013 s:0112 e:000107 l:n b:---- BLOCK  /tmp/ruby/src/trunk_asan/test/json/json_encoding_test.rb:149
c:0015 p:0024 s:0104 e:000103 l:y b:0001 METHOD <internal:numeric>:262
c:0014 p:0068 s:0099 e:000098 l:y b:0001 METHOD /tmp/ruby/src/trunk_asan/test/json/json_encoding_test.rb:149
c:0013 p:0037 s:0091 e:000090 l:y b:0001 METHOD /tmp/ruby/src/trunk_asan/tool/lib/test/unit/testcase.rb:202
c:0012 p:0052 s:0085 e:000084 l:y b:0001 METHOD /tmp/ruby/src/trunk_asan/tool/lib/test/unit/testcase.rb:170
c:0011 p:0093 s:0076 e:000075 l:n b:---- BLOCK  /tmp/ruby/src/trunk_asan/tool/lib/test/unit.rb:1665 [FINISH]
c:0010 p:---- s:0069 e:000068 l:y b:---- CFUNC  :map
c:0009 p:0114 s:0065 e:000064 l:y b:0001 METHOD /tmp/ruby/src/trunk_asan/tool/lib/test/unit.rb:1652
c:0008 p:0035 s:0053 e:000052 l:y b:0001 METHOD /tmp/ruby/src/trunk_asan/tool/lib/test/unit.rb:1356
c:0007 p:0069 s:0046 E:001c50 l:y b:0001 METHOD /tmp/ruby/src/trunk_asan/tool/lib/test/unit/parallel.rb:52
c:0006 p:0007 s:0030 e:000029 l:n b:---- BLOCK  /tmp/ruby/src/trunk_asan/tool/lib/test/unit/parallel.rb:24 [FINISH]
c:0005 p:---- s:0026 e:000025 l:y b:---- CFUNC  :map
c:0004 p:0005 s:0022 e:000021 l:y b:0001 METHOD /tmp/ruby/src/trunk_asan/tool/lib/test/unit/parallel.rb:23
c:0003 p:0210 s:0016 e:000015 l:y b:0001 METHOD /tmp/ruby/src/trunk_asan/tool/lib/test/unit/parallel.rb:122
c:0002 p:0062 s:0006 e:000005 l:n b:---- EVAL   /tmp/ruby/src/trunk_asan/tool/lib/test/unit/parallel.rb:220 [FINISH]
c:0001 p:0000 s:0003 E:002650 l:y b:---- DUMMY  [FINISH]
-- Ruby level backtrace information ----------------------------------------
/tmp/ruby/src/trunk_asan/tool/lib/test/unit/parallel.rb:220:in '<main>'
/tmp/ruby/src/trunk_asan/tool/lib/test/unit/parallel.rb:122:in 'run'
/tmp/ruby/src/trunk_asan/tool/lib/test/unit/parallel.rb:23:in '_run_suites'
/tmp/ruby/src/trunk_asan/tool/lib/test/unit/parallel.rb:23:in 'map'
/tmp/ruby/src/trunk_asan/tool/lib/test/unit/parallel.rb:24:in 'block in _run_suites'
/tmp/ruby/src/trunk_asan/tool/lib/test/unit/parallel.rb:52:in '_run_suite'
/tmp/ruby/src/trunk_asan/tool/lib/test/unit.rb:1356:in '_run_suite'
/tmp/ruby/src/trunk_asan/tool/lib/test/unit.rb:1652:in '_run_suite'
/tmp/ruby/src/trunk_asan/tool/lib/test/unit.rb:1652:in 'map'
/tmp/ruby/src/trunk_asan/tool/lib/test/unit.rb:1665:in 'block in _run_suite'
/tmp/ruby/src/trunk_asan/tool/lib/test/unit/testcase.rb:170:in 'run'
/tmp/ruby/src/trunk_asan/tool/lib/test/unit/testcase.rb:202:in 'run_test'
/tmp/ruby/src/trunk_asan/test/json/json_encoding_test.rb:149:in 'test_very_large_json_strings'
<internal:numeric>:262:in 'times'
/tmp/ruby/src/trunk_asan/test/json/json_encoding_test.rb:149:in 'block in test_very_large_json_strings'
-- Threading information ---------------------------------------------------
Total ractor count: 1
Ruby thread count for this ractor: 4
-- Machine register context ------------------------------------------------
 RIP: 0x00007f8d47df07c5 RBP: 0x00007fff9670be90 RSP: 0x00007fff9670be60
 RAX: 0x0000000000000000 RBX: 0x00007f8d21f59210 RCX: 0x00000ff1a8fbfbb7
 RDX: 0x000000000000004c RDI: 0x0000000000000000 RSI: 0x0000000000000000
  R8: 0x00007f8d469bed40  R9: 0x00007fffffffffff R10: 0x000051d000000da4
 R11: 0x000051d000000ec8 R12: 0x0000000000000000 R13: 0x00000ff1a43eb243
 R14: 0x00007f8d21f59218 R15: 0x00000ff1a43eb242 EFL: 0x0000000000010246
-- C level backtrace information -------------------------------------------
/tmp/ruby/src/trunk_asan/tool/lib/test/unit/parallel.rb: JSONEncodingTest#test_very_large_json_strings(___interceptor_backtrace) [0x5bb3c66dad39]
/tmp/ruby/build/trunk_asan/ruby(rb_print_backtrace+0x14) [0x5bb3c6bf5994] /tmp/ruby/src/trunk_asan/vm_dump.c:1105
/tmp/ruby/build/trunk_asan/ruby(rb_vm_bugreport) /tmp/ruby/src/trunk_asan/vm_dump.c:1450
/tmp/ruby/build/trunk_asan/ruby(rb_bug_for_fatal_signal+0x35b) [0x5bb3c6f8dc4b] /tmp/ruby/src/trunk_asan/error.c:1131
/tmp/ruby/build/trunk_asan/ruby(sigsegv+0xdd) [0x5bb3c6a2a2cd] /tmp/ruby/src/trunk_asan/signal.c:948
/lib/x86_64-linux-gnu/libc.so.6(0x7f8d48a45330) [0x7f8d48a45330]
/tmp/ruby/build/trunk_asan/.ext/x86_64-linux/json/ext/parser.so(rvalue_stack_mark+0x65) [0x7f8d47df07c5] /tmp/ruby/src/trunk_asan/ext/json/parser/parser.c:245
/tmp/ruby/build/trunk_asan/ruby(rb_gc_mark_children+0xf82) [0x5bb3c67bd252] /tmp/ruby/src/trunk_asan/gc.c:3411
/tmp/ruby/build/trunk_asan/ruby(gc_mark_stacked_objects+0x298) [0x5bb3c67dab48] /tmp/ruby/src/trunk_asan/gc/default/default.c:4619
/tmp/ruby/build/trunk_asan/ruby(gc_mark_stacked_objects_incremental+0x19) [0x5bb3c67cbdd2] /tmp/ruby/src/trunk_asan/gc/default/default.c:4673
/tmp/ruby/build/trunk_asan/ruby(gc_continue) /tmp/ruby/src/trunk_asan/gc/default/default.c:5711
/tmp/ruby/build/trunk_asan/ruby(newobj_cache_miss+0x461) [0x5bb3c67cad31] /tmp/ruby/src/trunk_asan/gc/default/default.c:2420
/tmp/ruby/build/trunk_asan/ruby(newobj_of+0x2e5) [0x5bb3c67abd55] /tmp/ruby/src/trunk_asan/gc/default/default.c:2453
/tmp/ruby/build/trunk_asan/ruby(str_alloc_embed+0x66) [0x5bb3c6a5bf36] /tmp/ruby/src/trunk_asan/string.c:1004
/tmp/ruby/build/trunk_asan/ruby(rb_str_buf_new) /tmp/ruby/src/trunk_asan/string.c:1704
/tmp/ruby/build/trunk_asan/ruby(rb_str_concat_literals) /tmp/ruby/src/trunk_asan/string.c:3835
/tmp/ruby/build/trunk_asan/ruby(vm_exec_core+0x73f2) [0x5bb3c6b5be12] ../../src/trunk_asan/insns.def:405
/tmp/ruby/build/trunk_asan/ruby(rb_vm_exec+0x4e2) [0x5bb3c6b4fb72] /tmp/ruby/src/trunk_asan/vm.c:2799
/tmp/ruby/build/trunk_asan/ruby(invoke_iseq_block_from_c+0x6fd) [0x5bb3c6be2402] /tmp/ruby/src/trunk_asan/vm.c:1821
/tmp/ruby/build/trunk_asan/ruby(invoke_block_from_c_bh) /tmp/ruby/src/trunk_asan/vm.c:1835
/tmp/ruby/build/trunk_asan/ruby(vm_yield_with_cref+0x11) [0x5bb3c6b8251c] /tmp/ruby/src/trunk_asan/vm.c:1872
/tmp/ruby/build/trunk_asan/ruby(vm_yield) /tmp/ruby/src/trunk_asan/vm.c:1880
/tmp/ruby/build/trunk_asan/ruby(rb_yield_0) /tmp/ruby/src/trunk_asan/vm_eval.c:1365
/tmp/ruby/build/trunk_asan/ruby(rb_yield) /tmp/ruby/src/trunk_asan/vm_eval.c:0
/tmp/ruby/build/trunk_asan/ruby(rb_ary_collect+0x186) [0x5bb3c6d5e236] /tmp/ruby/src/trunk_asan/array.c:3779
/tmp/ruby/build/trunk_asan/ruby(vm_cfp_consistent_p+0x0) [0x5bb3c6bc1448] /tmp/ruby/src/trunk_asan/vm_insnhelper.c:3905
/tmp/ruby/build/trunk_asan/ruby(vm_call_cfunc_with_frame_) /tmp/ruby/src/trunk_asan/vm_insnhelper.c:3907
/tmp/ruby/build/trunk_asan/ruby(vm_sendish+0x274) [0x5bb3c6b5a8a4] /tmp/ruby/src/trunk_asan/vm_insnhelper.c:6127
/tmp/ruby/build/trunk_asan/ruby(vm_exec_core) ../../src/trunk_asan/insns.def:858
/tmp/ruby/build/trunk_asan/ruby(vm_exec_loop+0x198) [0x5bb3c6b4ff61] /tmp/ruby/src/trunk_asan/vm.c:2826
/tmp/ruby/build/trunk_asan/ruby(rb_vm_exec) /tmp/ruby/src/trunk_asan/vm.c:2805
/tmp/ruby/build/trunk_asan/ruby(invoke_iseq_block_from_c+0x6fd) [0x5bb3c6be2402] /tmp/ruby/src/trunk_asan/vm.c:1821
/tmp/ruby/build/trunk_asan/ruby(invoke_block_from_c_bh) /tmp/ruby/src/trunk_asan/vm.c:1835
/tmp/ruby/build/trunk_asan/ruby(vm_yield_with_cref+0x11) [0x5bb3c6b8251c] /tmp/ruby/src/trunk_asan/vm.c:1872
/tmp/ruby/build/trunk_asan/ruby(vm_yield) /tmp/ruby/src/trunk_asan/vm.c:1880
/tmp/ruby/build/trunk_asan/ruby(rb_yield_0) /tmp/ruby/src/trunk_asan/vm_eval.c:1365
/tmp/ruby/build/trunk_asan/ruby(rb_yield) /tmp/ruby/src/trunk_asan/vm_eval.c:0
/tmp/ruby/build/trunk_asan/ruby(rb_ary_collect+0x186) [0x5bb3c6d5e236] /tmp/ruby/src/trunk_asan/array.c:3779
/tmp/ruby/build/trunk_asan/ruby(vm_cfp_consistent_p+0x0) [0x5bb3c6bc1448] /tmp/ruby/src/trunk_asan/vm_insnhelper.c:3905
/tmp/ruby/build/trunk_asan/ruby(vm_call_cfunc_with_frame_) /tmp/ruby/src/trunk_asan/vm_insnhelper.c:3907
/tmp/ruby/build/trunk_asan/ruby(vm_sendish+0x274) [0x5bb3c6b5a8a4] /tmp/ruby/src/trunk_asan/vm_insnhelper.c:6127
/tmp/ruby/build/trunk_asan/ruby(vm_exec_core) ../../src/trunk_asan/insns.def:858
/tmp/ruby/build/trunk_asan/ruby(vm_exec_loop+0x198) [0x5bb3c6b4ff61] /tmp/ruby/src/trunk_asan/vm.c:2826
/tmp/ruby/build/trunk_asan/ruby(rb_vm_exec) /tmp/ruby/src/trunk_asan/vm.c:2805
/tmp/ruby/build/trunk_asan/ruby(rb_iseq_eval_main+0x2d6) [0x5bb3c6b99a26] /tmp/ruby/src/trunk_asan/vm.c:3065
/tmp/ruby/build/trunk_asan/ruby(rb_ec_exec_node+0x142) [0x5bb3c6777c50] /tmp/ruby/src/trunk_asan/eval.c:283
/tmp/ruby/build/trunk_asan/ruby(ruby_run_node) /tmp/ruby/src/trunk_asan/eval.c:321
/tmp/ruby/build/trunk_asan/ruby(rb_main+0x25) [0x5bb3c6770b87] /tmp/ruby/src/trunk_asan/main.c:42
/tmp/ruby/build/trunk_asan/ruby(main) /tmp/ruby/src/trunk_asan/main.c:62
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_call_main+0x7a) [0x7f8d48a2a1ca] ../sysdeps/nptl/libc_start_call_main.h:58
/lib/x86_64-linux-gnu/libc.so.6(call_init+0x0) [0x7f8d48a2a28b] ../csu/libc-start.c:360
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main_impl) ../csu/libc-start.c:347
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main) (null):0
/tmp/ruby/src/trunk_asan/tool/lib/test/unit/parallel.rb: JSONEncodingTest#test_very_large_json_strings(_start) [0x5bb3c6694955]
-- Other runtime information -----------------------------------------------
AddressSanitizer:DEADLYSIGNAL
running file: /tmp/ruby/src/trunk_asan/test/json/json_encoding_test.rb
A test worker crashed. It might be an interpreter bug or
a bug in test/unit/parallel.rb. Try again without the -j
option.
Children under /tmp/rubytest.3b6lc8:
* -rw------- 1 13 2026-03-24 07:49:27 +0000 bug10435-20260324-3703841-a3vp0k.rb
* drwx------ 2 60 2026-03-24 07:49:14 +0000 ruby-test20260324-3703899-q7qr8n/
  * -rw-r--r-- 1 3 2026-03-24 07:49:14 +0000 file.test
make: *** [uncommon.mk:930: yes-test-all] Error 1
"make yes-test-rubyspec MSPECOPT='--error-output stderr -j' TESTS='-j16'" exit with 0.

Linux ruby-sp1 6.8.0-100-generic #100-Ubuntu SMP PREEMPT_DYNAMIC Tue Jan 13 16:40:06 UTC 2026 x86_64 x86_64 x86_64 GNU/Linux

Logfile: /home/ko1/ruby/logs/brlog.trunk_asan.20260324-074630
#<BuildRuby:0x000079d8526ffdc0
 @BUILD_DIR="/tmp/ruby/build",
 @INSTALL_DIR="/tmp/ruby/install",
 @REPOSITORY="https://github.com/ruby/ruby.git",
 @REPOSITORY_TYPE=:git,
 @SRC_DIR="/tmp/ruby/src",
 @TARGET_BUILD_DIR="/tmp/ruby/build/trunk_asan",
 @TARGET_INSTALL_DIR="/tmp/ruby/install/trunk_asan",
 @TARGET_NAME="trunk_asan",
 @TARGET_SRC_DIR="/tmp/ruby/src/trunk_asan",
 @btest_opts="-j16",
 @build_opts="-j16",
 @configure_opts=
  ["'CC=clang-17' 'cflags=-fsanitize=address -fno-omit-frame-pointer -DUSE_MN_THREADS=0'"],
 @gist=false,
 @git_branch=nil,
 @git_tag=nil,
 @git_worktree=nil,
 @incremental=true,
 @logfile="/home/ko1/ruby/logs/brlog.trunk_asan.20260324-074630",
 @make="make",
 @no_timeout_error=true,
 @quiet=false,
 @ruby_env=[["RUBY_DEBUG", "ci"], ["RUBY_TEST_TIMEOUT_SCALE", "50"]],
 @spec_opts="-j",
 @steps=
  ["checkout",
   "autoconf",
   "configure",
   "build_up",
   "build_miniruby",
   "build_ruby",
   "build_all",
   "build_install",
   "test_basic",
   "test_all",
   "test_rubyspec"],
 @svn_revision=nil,
 @test_opts="TESTS='-j16'",
 @timeout=600>
                           user     system      total        real
checkout               0.000014   0.000003   0.000017 (  0.000017)
autoconf               0.000031   0.000005   0.000036 (  0.000037)
configure              0.000022   0.000003   0.000025 (  0.000025)
build_up               0.001425   0.003120   1.508570 (  1.557983)
build_miniruby         0.000977   0.000006   0.991423 (  0.968713)
build_ruby             0.000411   0.000884   1.624276 (  1.622885)
build_all              0.004670   0.001374  15.640586 (  2.152918)
build_install          0.007500   0.005167  17.714314 (  3.978117)
test_basic             0.002562   0.004802   1.273747 (  1.315932)
test_all               0.129801   0.041090 2127.403905 (166.360405)
test_rubyspec          0.080364   0.062704 568.465499 ( 50.264488)
$$$[end] "make yes-test-all TESTOPTS='--stderr-on-failure' TESTS='-j16'" exit with 512.
/home/ko1/ruby/logs/brlog.trunk_asan.20260324-074630
total: 228.22 sec

	"make update-download -j16" exit with 0.
	"make update-src -j16" exit with 0.
	"make after-update -j16" exit with 0.
	"make miniruby -j16" exit with 0.
	"make ruby -j16" exit with 0.
	"make all -j16" exit with 0.
	"make install -j16" exit with 0.
	"make yes-test-basic TESTS='-j16'" exit with 0.
	"make yes-test-all TESTOPTS='--stderr-on-failure' TESTS='-j16'" exit with 512.
	/tmp/ruby/src/trunk_asan/test/json/json_encoding_test.rb:149: [BUG] Segmentation fault at 0x0000000000000000
	ruby 4.1.0dev (2026-03-24T07:35:33Z master 60116d5ee1) +PRISM [x86_64-linux]
	-- Control frame information -----------------------------------------------
	c:0016 p:0013 s:0112 e:000107 l:n b:---- BLOCK /tmp/ruby/src/trunk_asan/test/json/json_encoding_test.rb:149
	c:0015 p:0024 s:0104 e:000103 l:y b:0001 METHOD <internal:numeric>:262
	c:0014 p:0068 s:0099 e:000098 l:y b:0001 METHOD /tmp/ruby/src/trunk_asan/test/json/json_encoding_test.rb:149
	c:0013 p:0037 s:0091 e:000090 l:y b:0001 METHOD /tmp/ruby/src/trunk_asan/tool/lib/test/unit/testcase.rb:202
	c:0012 p:0052 s:0085 e:000084 l:y b:0001 METHOD /tmp/ruby/src/trunk_asan/tool/lib/test/unit/testcase.rb:170
	c:0011 p:0093 s:0076 e:000075 l:n b:---- BLOCK /tmp/ruby/src/trunk_asan/tool/lib/test/unit.rb:1665 [FINISH]
	c:0010 p:---- s:0069 e:000068 l:y b:---- CFUNC :map
	c:0009 p:0114 s:0065 e:000064 l:y b:0001 METHOD /tmp/ruby/src/trunk_asan/tool/lib/test/unit.rb:1652
	c:0008 p:0035 s:0053 e:000052 l:y b:0001 METHOD /tmp/ruby/src/trunk_asan/tool/lib/test/unit.rb:1356
	c:0007 p:0069 s:0046 E:001c50 l:y b:0001 METHOD /tmp/ruby/src/trunk_asan/tool/lib/test/unit/parallel.rb:52
	c:0006 p:0007 s:0030 e:000029 l:n b:---- BLOCK /tmp/ruby/src/trunk_asan/tool/lib/test/unit/parallel.rb:24 [FINISH]
	c:0005 p:---- s:0026 e:000025 l:y b:---- CFUNC :map
	c:0004 p:0005 s:0022 e:000021 l:y b:0001 METHOD /tmp/ruby/src/trunk_asan/tool/lib/test/unit/parallel.rb:23
	c:0003 p:0210 s:0016 e:000015 l:y b:0001 METHOD /tmp/ruby/src/trunk_asan/tool/lib/test/unit/parallel.rb:122
	c:0002 p:0062 s:0006 e:000005 l:n b:---- EVAL /tmp/ruby/src/trunk_asan/tool/lib/test/unit/parallel.rb:220 [FINISH]
	c:0001 p:0000 s:0003 E:002650 l:y b:---- DUMMY [FINISH]
	-- Ruby level backtrace information ----------------------------------------
	/tmp/ruby/src/trunk_asan/tool/lib/test/unit/parallel.rb:220:in '<main>'
	/tmp/ruby/src/trunk_asan/tool/lib/test/unit/parallel.rb:122:in 'run'
	/tmp/ruby/src/trunk_asan/tool/lib/test/unit/parallel.rb:23:in '_run_suites'
	/tmp/ruby/src/trunk_asan/tool/lib/test/unit/parallel.rb:23:in 'map'
	/tmp/ruby/src/trunk_asan/tool/lib/test/unit/parallel.rb:24:in 'block in _run_suites'
	/tmp/ruby/src/trunk_asan/tool/lib/test/unit/parallel.rb:52:in '_run_suite'
	/tmp/ruby/src/trunk_asan/tool/lib/test/unit.rb:1356:in '_run_suite'
	/tmp/ruby/src/trunk_asan/tool/lib/test/unit.rb:1652:in '_run_suite'
	/tmp/ruby/src/trunk_asan/tool/lib/test/unit.rb:1652:in 'map'
	/tmp/ruby/src/trunk_asan/tool/lib/test/unit.rb:1665:in 'block in _run_suite'
	/tmp/ruby/src/trunk_asan/tool/lib/test/unit/testcase.rb:170:in 'run'
	/tmp/ruby/src/trunk_asan/tool/lib/test/unit/testcase.rb:202:in 'run_test'
	/tmp/ruby/src/trunk_asan/test/json/json_encoding_test.rb:149:in 'test_very_large_json_strings'
	<internal:numeric>:262:in 'times'
	/tmp/ruby/src/trunk_asan/test/json/json_encoding_test.rb:149:in 'block in test_very_large_json_strings'
	-- Threading information ---------------------------------------------------
	Total ractor count: 1
	Ruby thread count for this ractor: 4
	-- Machine register context ------------------------------------------------
	RIP: 0x00007f8d47df07c5 RBP: 0x00007fff9670be90 RSP: 0x00007fff9670be60
	RAX: 0x0000000000000000 RBX: 0x00007f8d21f59210 RCX: 0x00000ff1a8fbfbb7
	RDX: 0x000000000000004c RDI: 0x0000000000000000 RSI: 0x0000000000000000
	R8: 0x00007f8d469bed40 R9: 0x00007fffffffffff R10: 0x000051d000000da4
	R11: 0x000051d000000ec8 R12: 0x0000000000000000 R13: 0x00000ff1a43eb243
	R14: 0x00007f8d21f59218 R15: 0x00000ff1a43eb242 EFL: 0x0000000000010246
	-- C level backtrace information -------------------------------------------
	/tmp/ruby/src/trunk_asan/tool/lib/test/unit/parallel.rb: JSONEncodingTest#test_very_large_json_strings(___interceptor_backtrace) [0x5bb3c66dad39]
	/tmp/ruby/build/trunk_asan/ruby(rb_print_backtrace+0x14) [0x5bb3c6bf5994] /tmp/ruby/src/trunk_asan/vm_dump.c:1105
	/tmp/ruby/build/trunk_asan/ruby(rb_vm_bugreport) /tmp/ruby/src/trunk_asan/vm_dump.c:1450
	/tmp/ruby/build/trunk_asan/ruby(rb_bug_for_fatal_signal+0x35b) [0x5bb3c6f8dc4b] /tmp/ruby/src/trunk_asan/error.c:1131
	/tmp/ruby/build/trunk_asan/ruby(sigsegv+0xdd) [0x5bb3c6a2a2cd] /tmp/ruby/src/trunk_asan/signal.c:948
	/lib/x86_64-linux-gnu/libc.so.6(0x7f8d48a45330) [0x7f8d48a45330]
	/tmp/ruby/build/trunk_asan/.ext/x86_64-linux/json/ext/parser.so(rvalue_stack_mark+0x65) [0x7f8d47df07c5] /tmp/ruby/src/trunk_asan/ext/json/parser/parser.c:245
	/tmp/ruby/build/trunk_asan/ruby(rb_gc_mark_children+0xf82) [0x5bb3c67bd252] /tmp/ruby/src/trunk_asan/gc.c:3411
	/tmp/ruby/build/trunk_asan/ruby(gc_mark_stacked_objects+0x298) [0x5bb3c67dab48] /tmp/ruby/src/trunk_asan/gc/default/default.c:4619
	/tmp/ruby/build/trunk_asan/ruby(gc_mark_stacked_objects_incremental+0x19) [0x5bb3c67cbdd2] /tmp/ruby/src/trunk_asan/gc/default/default.c:4673
	/tmp/ruby/build/trunk_asan/ruby(gc_continue) /tmp/ruby/src/trunk_asan/gc/default/default.c:5711
	/tmp/ruby/build/trunk_asan/ruby(newobj_cache_miss+0x461) [0x5bb3c67cad31] /tmp/ruby/src/trunk_asan/gc/default/default.c:2420
	/tmp/ruby/build/trunk_asan/ruby(newobj_of+0x2e5) [0x5bb3c67abd55] /tmp/ruby/src/trunk_asan/gc/default/default.c:2453
	/tmp/ruby/build/trunk_asan/ruby(str_alloc_embed+0x66) [0x5bb3c6a5bf36] /tmp/ruby/src/trunk_asan/string.c:1004
	/tmp/ruby/build/trunk_asan/ruby(rb_str_buf_new) /tmp/ruby/src/trunk_asan/string.c:1704
	/tmp/ruby/build/trunk_asan/ruby(rb_str_concat_literals) /tmp/ruby/src/trunk_asan/string.c:3835
	/tmp/ruby/build/trunk_asan/ruby(vm_exec_core+0x73f2) [0x5bb3c6b5be12] ../../src/trunk_asan/insns.def:405
	/tmp/ruby/build/trunk_asan/ruby(rb_vm_exec+0x4e2) [0x5bb3c6b4fb72] /tmp/ruby/src/trunk_asan/vm.c:2799
	/tmp/ruby/build/trunk_asan/ruby(invoke_iseq_block_from_c+0x6fd) [0x5bb3c6be2402] /tmp/ruby/src/trunk_asan/vm.c:1821
	/tmp/ruby/build/trunk_asan/ruby(invoke_block_from_c_bh) /tmp/ruby/src/trunk_asan/vm.c:1835
	/tmp/ruby/build/trunk_asan/ruby(vm_yield_with_cref+0x11) [0x5bb3c6b8251c] /tmp/ruby/src/trunk_asan/vm.c:1872
	/tmp/ruby/build/trunk_asan/ruby(vm_yield) /tmp/ruby/src/trunk_asan/vm.c:1880
	/tmp/ruby/build/trunk_asan/ruby(rb_yield_0) /tmp/ruby/src/trunk_asan/vm_eval.c:1365
	/tmp/ruby/build/trunk_asan/ruby(rb_yield) /tmp/ruby/src/trunk_asan/vm_eval.c:0
	/tmp/ruby/build/trunk_asan/ruby(rb_ary_collect+0x186) [0x5bb3c6d5e236] /tmp/ruby/src/trunk_asan/array.c:3779
	/tmp/ruby/build/trunk_asan/ruby(vm_cfp_consistent_p+0x0) [0x5bb3c6bc1448] /tmp/ruby/src/trunk_asan/vm_insnhelper.c:3905
	/tmp/ruby/build/trunk_asan/ruby(vm_call_cfunc_with_frame_) /tmp/ruby/src/trunk_asan/vm_insnhelper.c:3907
	/tmp/ruby/build/trunk_asan/ruby(vm_sendish+0x274) [0x5bb3c6b5a8a4] /tmp/ruby/src/trunk_asan/vm_insnhelper.c:6127
	/tmp/ruby/build/trunk_asan/ruby(vm_exec_core) ../../src/trunk_asan/insns.def:858
	/tmp/ruby/build/trunk_asan/ruby(vm_exec_loop+0x198) [0x5bb3c6b4ff61] /tmp/ruby/src/trunk_asan/vm.c:2826
	/tmp/ruby/build/trunk_asan/ruby(rb_vm_exec) /tmp/ruby/src/trunk_asan/vm.c:2805
	/tmp/ruby/build/trunk_asan/ruby(invoke_iseq_block_from_c+0x6fd) [0x5bb3c6be2402] /tmp/ruby/src/trunk_asan/vm.c:1821
	/tmp/ruby/build/trunk_asan/ruby(invoke_block_from_c_bh) /tmp/ruby/src/trunk_asan/vm.c:1835
	/tmp/ruby/build/trunk_asan/ruby(vm_yield_with_cref+0x11) [0x5bb3c6b8251c] /tmp/ruby/src/trunk_asan/vm.c:1872
	/tmp/ruby/build/trunk_asan/ruby(vm_yield) /tmp/ruby/src/trunk_asan/vm.c:1880
	/tmp/ruby/build/trunk_asan/ruby(rb_yield_0) /tmp/ruby/src/trunk_asan/vm_eval.c:1365
	/tmp/ruby/build/trunk_asan/ruby(rb_yield) /tmp/ruby/src/trunk_asan/vm_eval.c:0
	/tmp/ruby/build/trunk_asan/ruby(rb_ary_collect+0x186) [0x5bb3c6d5e236] /tmp/ruby/src/trunk_asan/array.c:3779
	/tmp/ruby/build/trunk_asan/ruby(vm_cfp_consistent_p+0x0) [0x5bb3c6bc1448] /tmp/ruby/src/trunk_asan/vm_insnhelper.c:3905
	/tmp/ruby/build/trunk_asan/ruby(vm_call_cfunc_with_frame_) /tmp/ruby/src/trunk_asan/vm_insnhelper.c:3907
	/tmp/ruby/build/trunk_asan/ruby(vm_sendish+0x274) [0x5bb3c6b5a8a4] /tmp/ruby/src/trunk_asan/vm_insnhelper.c:6127
	/tmp/ruby/build/trunk_asan/ruby(vm_exec_core) ../../src/trunk_asan/insns.def:858
	/tmp/ruby/build/trunk_asan/ruby(vm_exec_loop+0x198) [0x5bb3c6b4ff61] /tmp/ruby/src/trunk_asan/vm.c:2826
	/tmp/ruby/build/trunk_asan/ruby(rb_vm_exec) /tmp/ruby/src/trunk_asan/vm.c:2805
	/tmp/ruby/build/trunk_asan/ruby(rb_iseq_eval_main+0x2d6) [0x5bb3c6b99a26] /tmp/ruby/src/trunk_asan/vm.c:3065
	/tmp/ruby/build/trunk_asan/ruby(rb_ec_exec_node+0x142) [0x5bb3c6777c50] /tmp/ruby/src/trunk_asan/eval.c:283
	/tmp/ruby/build/trunk_asan/ruby(ruby_run_node) /tmp/ruby/src/trunk_asan/eval.c:321
	/tmp/ruby/build/trunk_asan/ruby(rb_main+0x25) [0x5bb3c6770b87] /tmp/ruby/src/trunk_asan/main.c:42
	/tmp/ruby/build/trunk_asan/ruby(main) /tmp/ruby/src/trunk_asan/main.c:62
	/lib/x86_64-linux-gnu/libc.so.6(__libc_start_call_main+0x7a) [0x7f8d48a2a1ca] ../sysdeps/nptl/libc_start_call_main.h:58
	/lib/x86_64-linux-gnu/libc.so.6(call_init+0x0) [0x7f8d48a2a28b] ../csu/libc-start.c:360
	/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main_impl) ../csu/libc-start.c:347
	/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main) (null):0
	/tmp/ruby/src/trunk_asan/tool/lib/test/unit/parallel.rb: JSONEncodingTest#test_very_large_json_strings(_start) [0x5bb3c6694955]
	-- Other runtime information -----------------------------------------------
	AddressSanitizer:DEADLYSIGNAL
	running file: /tmp/ruby/src/trunk_asan/test/json/json_encoding_test.rb
	A test worker crashed. It might be an interpreter bug or
	a bug in test/unit/parallel.rb. Try again without the -j
	option.
	Children under /tmp/rubytest.3b6lc8:
	* -rw------- 1 13 2026-03-24 07:49:27 +0000 bug10435-20260324-3703841-a3vp0k.rb
	* drwx------ 2 60 2026-03-24 07:49:14 +0000 ruby-test20260324-3703899-q7qr8n/
	* -rw-r--r-- 1 3 2026-03-24 07:49:14 +0000 file.test
	make: *** [uncommon.mk:930: yes-test-all] Error 1
	"make yes-test-rubyspec MSPECOPT='--error-output stderr -j' TESTS='-j16'" exit with 0.