Bump github.com/microsoft/vcpkg from master to 2025.08.27 - #18
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Bumps [github.com/microsoft/vcpkg](https://github.com/microsoft/vcpkg) from master to 2025.08.27. This release includes the previously tagged commit. - [Release notes](https://github.com/microsoft/vcpkg/releases) - [Commits](microsoft/vcpkg@dd3097e...120deac) --- updated-dependencies: - dependency-name: github.com/microsoft/vcpkg dependency-version: 2025.08.27 dependency-type: direct:production ... Signed-off-by: dependabot[bot] <support@github.com>
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If we malloc when the current Ractor is locked, we can deadlock because
GC requires VM lock and Ractor barrier. If another Ractor is waiting on
this Ractor lock, then it will deadlock because the other Ractor will
never join the barrier.
For example, this script deadlocks:
r = Ractor.new do
loop do
Ractor::Port.new
end
end
100000.times do |i|
r.send(nil)
puts i
end
On debug builds, it fails with this assertion error:
vm_sync.c:75: Assertion Failed: vm_lock_enter:cr->sync.locked_by != rb_ractor_self(cr)
On non-debug builds, we can see that it deadlocks in the debugger:
Main Ractor:
frame #3: 0x000000010021fdc4 miniruby`rb_native_mutex_lock(lock=<unavailable>) at thread_pthread.c:115:14
frame #4: 0x0000000100193eb8 miniruby`ractor_send0 [inlined] ractor_lock(r=<unavailable>, file=<unavailable>, line=1180) at ractor.c:73:5
frame #5: 0x0000000100193eb0 miniruby`ractor_send0 [inlined] ractor_send_basket(ec=<unavailable>, rp=0x0000000131092840, b=0x000000011c63de80, raise_on_error=true) at ractor_sync.c:1180:5
frame #6: 0x0000000100193eac miniruby`ractor_send0(ec=<unavailable>, rp=0x0000000131092840, obj=4, move=<unavailable>, raise_on_error=true) at ractor_sync.c:1211:5
Second Ractor:
frame #2: 0x00000001002208d0 miniruby`rb_ractor_sched_barrier_start [inlined] rb_native_cond_wait(cond=<unavailable>, mutex=<unavailable>) at thread_pthread.c:221:13
frame #3: 0x00000001002208cc miniruby`rb_ractor_sched_barrier_start(vm=0x000000013180d600, cr=0x0000000131093460) at thread_pthread.c:1438:13
frame #4: 0x000000010028a328 miniruby`rb_vm_barrier at vm_sync.c:262:13 [artificial]
frame #5: 0x00000001000dfa6c miniruby`gc_start [inlined] rb_gc_vm_barrier at gc.c:179:5
frame #6: 0x00000001000dfa68 miniruby`gc_start [inlined] gc_enter(objspace=0x000000013180fc00, event=gc_enter_event_start, lock_lev=<unavailable>) at default.c:6636:9
frame #7: 0x00000001000dfa48 miniruby`gc_start(objspace=0x000000013180fc00, reason=<unavailable>) at default.c:6361:5
frame #8: 0x00000001000e3fd8 miniruby`objspace_malloc_increase_body [inlined] garbage_collect(objspace=0x000000013180fc00, reason=512) at default.c:6341:15
frame #9: 0x00000001000e3fa4 miniruby`objspace_malloc_increase_body [inlined] garbage_collect_with_gvl(objspace=0x000000013180fc00, reason=512) at default.c:6741:16
frame #10: 0x00000001000e3f88 miniruby`objspace_malloc_increase_body(objspace=0x000000013180fc00, mem=<unavailable>, new_size=<unavailable>, old_size=<unavailable>, type=<unavailable>) at default.c:8007:13
frame #11: 0x00000001000e3c44 miniruby`rb_gc_impl_malloc [inlined] objspace_malloc_fixup(objspace=0x000000013180fc00, mem=0x000000011c700000, size=12582912) at default.c:8085:5
frame #12: 0x00000001000e3c30 miniruby`rb_gc_impl_malloc(objspace_ptr=0x000000013180fc00, size=12582912) at default.c:8182:12
frame #13: 0x00000001000d4584 miniruby`ruby_xmalloc [inlined] ruby_xmalloc_body(size=<unavailable>) at gc.c:5128:12
frame #14: 0x00000001000d4568 miniruby`ruby_xmalloc(size=<unavailable>) at gc.c:5118:34
frame #15: 0x00000001001eb184 miniruby`rb_st_init_existing_table_with_size(tab=0x000000011c2b4b40, type=<unavailable>, size=<unavailable>) at st.c:559:39
frame #16: 0x00000001001ebc74 miniruby`rebuild_table_if_necessary [inlined] rb_st_init_table_with_size(type=0x00000001004f4a78, size=524287) at st.c:585:5
frame #17: 0x00000001001ebc5c miniruby`rebuild_table_if_necessary [inlined] rebuild_table(tab=0x000000013108e2f0) at st.c:753:19
frame #18: 0x00000001001ebbfc miniruby`rebuild_table_if_necessary(tab=0x000000013108e2f0) at st.c:1125:9
frame #19: 0x00000001001eba08 miniruby`rb_st_insert(tab=0x000000013108e2f0, key=262144, value=4767566624) at st.c:1143:5
frame #20: 0x0000000100194b84 miniruby`ractor_port_initialzie [inlined] ractor_add_port(r=0x0000000131093460, id=262144) at ractor_sync.c:399:9
frame #21: 0x0000000100194b58 miniruby`ractor_port_initialzie [inlined] ractor_port_init(rpv=4750065560, r=0x0000000131093460) at ractor_sync.c:87:5
frame #22: 0x0000000100194b34 miniruby`ractor_port_initialzie(self=4750065560) at ractor_sync.c:103:12
Author
|
Superseded by #23. |
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September 23, 2025 14:25
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Nov 11, 2025
We were seeing errors like: ``` * thread #8, stop reason = EXC_BAD_ACCESS (code=1, address=0x803) * frame #0: 0x00000001001fe944 ruby`rb_st_lookup(tab=0x00000000000007fb, key=1, value=0x00000001305b7490) at st.c:1066:22 frame #1: 0x000000010002d658 ruby`remove_class_from_subclasses [inlined] class_get_subclasses_for_ns(tbl=0x00000000000007fb, ns_id=1) at class.c:604:9 frame #2: 0x000000010002d650 ruby`remove_class_from_subclasses(tbl=0x00000000000007fb, ns_id=1, klass=4754039232) at class.c:620:34 frame #3: 0x000000010002c8a8 ruby`rb_class_classext_free_subclasses(ext=0x000000011b5ce1d8, klass=4754039232, replacing=<unavailable>) at class.c:700:9 frame #4: 0x000000010002c760 ruby`rb_class_classext_free(klass=4754039232, ext=0x000000011b5ce1d8, is_prime=true) at class.c:105:5 frame #5: 0x00000001000e770c ruby`classext_free(ext=<unavailable>, is_prime=<unavailable>, namespace=<unavailable>, arg=<unavailable>) at gc.c:1231:5 [artificial] frame #6: 0x000000010002d178 ruby`rb_class_classext_foreach(klass=<unavailable>, func=(ruby`classext_free at gc.c:1228), arg=0x00000001305b75c0) at class.c:518:5 frame #7: 0x00000001000e745c ruby`rb_gc_obj_free(objspace=0x000000012500c400, obj=4754039232) at gc.c:1282:9 frame #8: 0x00000001000e70d4 ruby`gc_sweep_plane(objspace=0x000000012500c400, heap=<unavailable>, p=4754039232, bitset=4095, ctx=0x00000001305b76e8) at default.c:3482:21 frame #9: 0x00000001000e6e9c ruby`gc_sweep_page(objspace=0x000000012500c400, heap=0x000000012500c540, ctx=0x00000001305b76e8) at default.c:3567:13 frame #10: 0x00000001000e51d0 ruby`gc_sweep_step(objspace=0x000000012500c400, heap=0x000000012500c540) at default.c:3848:9 frame #11: 0x00000001000e1880 ruby`gc_continue [inlined] gc_sweep_continue(objspace=0x000000012500c400, sweep_heap=0x000000012500c540) at default.c:3931:13 frame #12: 0x00000001000e1754 ruby`gc_continue(objspace=0x000000012500c400, heap=0x000000012500c540) at default.c:2037:9 frame #13: 0x00000001000e10bc ruby`newobj_cache_miss [inlined] heap_prepare(objspace=0x000000012500c400, heap=0x000000012500c540) at default.c:2056:5 frame #14: 0x00000001000e1074 ruby`newobj_cache_miss [inlined] heap_next_free_page(objspace=0x000000012500c400, heap=0x000000012500c540) at default.c:2280:9 frame #15: 0x00000001000e106c ruby`newobj_cache_miss(objspace=0x000000012500c400, cache=0x0000600001b00300, heap_idx=2, vm_locked=false) at default.c:2387:38 frame #16: 0x00000001000e0d28 ruby`newobj_alloc(objspace=<unavailable>, cache=<unavailable>, heap_idx=<unavailable>, vm_locked=<unavailable>) at default.c:2411:15 [artificial] frame #17: 0x00000001000d7214 ruby`newobj_of [inlined] rb_gc_impl_new_obj(objspace_ptr=<unavailable>, cache_ptr=<unavailable>, klass=<unavailable>, flags=<unavailable>, wb_protected=<unavailable>, alloc_size=<unavailable>) at default.c:2490:15 frame #18: 0x00000001000d719c ruby`newobj_of(cr=<unavailable>, klass=4313971728, flags=258, wb_protected=<unavailable>, size=<unavailable>) at gc.c:995:17 frame #19: 0x00000001000d73ec ruby`rb_wb_protected_newobj_of(ec=<unavailable>, klass=<unavailable>, flags=<unavailable>, size=<unavailable>) at gc.c:1044:12 [artificial] frame #20: 0x0000000100032d34 ruby`class_alloc0(type=<unavailable>, klass=4313971728, namespaceable=<unavailable>) at class.c:803:5 ```
YO4
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Nov 11, 2025
We don't decrement the super and module subclasses count for iclasses that
are having their classext replaced. This causes the reference count to be
incorrect and leak memory.
The following script demonstrates the memory leak:
module Foo
refine(Object) do
define_method(:<=) {}
end
end
class Bar
include Comparable
end
With RUBY_FREE_AT_EXIT and ASAN, we can see many memory leaks, including:
Direct leak of 16 byte(s) in 1 object(s) allocated from:
#0 0x599f715adca2 in calloc (miniruby+0x64ca2)
#1 0x599f716bd779 in calloc1 gc/default/default.c:1495:12
#2 0x599f716d1370 in rb_gc_impl_calloc gc/default/default.c:8216:5
#3 0x599f716b8ab1 in ruby_xcalloc_body gc.c:5221:12
#4 0x599f716b269c in ruby_xcalloc gc.c:5215:34
#5 0x599f715eab23 in class_alloc0 class.c:790:22
#6 0x599f715e4bec in class_alloc class.c:836:12
#7 0x599f715e60c9 in module_new class.c:1693:17
#8 0x599f715e60a2 in rb_module_new class.c:1701:12
#9 0x599f715e6303 in rb_define_module class.c:1733:14
#10 0x599f715ebc5f in Init_Comparable compar.c:315:22
#11 0x599f716e35f5 in rb_call_inits inits.c:32:5
#12 0x599f7169cbfd in ruby_setup eval.c:88:9
#13 0x599f7169cdac in ruby_init eval.c:100:17
#14 0x599f715b0fa9 in rb_main main.c:41:5
#15 0x599f715b0f59 in main main.c:62:12
#16 0x739b2f02a1c9 in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16
#17 0x739b2f02a28a in __libc_start_main csu/../csu/libc-start.c:360:3
#18 0x599f7157c424 in _start (miniruby+0x33424)
YO4
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Sep 14, 2026
…aise
The test TestRequire#test_loading_fifo_threading_raise fails with the
following error in LSAN because pm_load_parse_file could raise which
will cause the pm_parse_result_t to leak.
Direct leak of 104 byte(s) in 1 object(s) allocated from:
#0 0x64ee1a50385d in calloc build-llvm/tools/clang/stage2-bins/runtimes/runtimes-bins/compiler-rt/lib/asan/asan_malloc_linux.cpp:74:3
#1 0x64ee1a578206 in calloc1 gc/default/default.c:2000:12
#2 0x64ee1a578206 in rb_gc_impl_calloc gc/default/default.c:11069:5
#3 0x64ee1a578206 in ruby_xcalloc_body gc.c:6146:12
#4 0x64ee1a578206 in ruby_xcalloc gc.c:6140:34
#5 0x64ee1acfaed1 in pm_parse_result_init prism_compile.c:10639:23
#6 0x64ee1a67bbd1 in load_iseq_eval load.c:748:13
#7 0x64ee1a674cd4 in rb_load_internal load.c:866:9
#8 0x64ee1a6754d6 in rb_load_entrypoint load.c:908:5
#9 0x64ee1a6790a5 in rb_f_load load.c:950:12
#10 0x64ee1a97043b in vm_call_cfunc_with_frame_ vm_insnhelper.c:3899:11
#11 0x64ee1a957d0b in vm_call_method_each_type vm_insnhelper.c:4891:16
#12 0x64ee1a95779b in vm_call_method vm_insnhelper.c
#13 0x64ee1a91a9ad in vm_sendish vm_insnhelper.c:6213:15
#14 0x64ee1a91a9ad in vm_exec_core insns.def:909:11
#15 0x64ee1a9083bd in rb_vm_exec vm.c:2875:22
#16 0x64ee1a54bccc in rb_ec_exec_node eval.c:299:9
#17 0x64ee1a54b993 in ruby_run_node eval.c:337:30
#18 0x64ee1a547f50 in rb_main main.c:42:12
#19 0x64ee1a547f50 in main main.c:62:12
#20 0x7f8507a2a1c9 in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16
#21 0x7f8507a2a28a in __libc_start_main csu/../csu/libc-start.c:360:3
#22 0x64ee1a45fb74 in _start (ruby+0x197b74) (BuildId: 5b18a734908cec0a5f93267f1f350850b0f3fb6d)
Direct leak of 16 byte(s) in 1 object(s) allocated from:
#0 0x64ee1a50385d in calloc build-llvm/tools/clang/stage2-bins/runtimes/runtimes-bins/compiler-rt/lib/asan/asan_malloc_linux.cpp:74:3
#1 0x64ee1a578206 in calloc1 gc/default/default.c:2000:12
#2 0x64ee1a578206 in rb_gc_impl_calloc gc/default/default.c:11069:5
#3 0x64ee1a578206 in ruby_xcalloc_body gc.c:6146:12
#4 0x64ee1a578206 in ruby_xcalloc gc.c:6140:34
#5 0x64ee1acfaeb9 in pm_parse_result_init prism_compile.c:10638:21
#6 0x64ee1a67bbd1 in load_iseq_eval load.c:748:13
#7 0x64ee1a674cd4 in rb_load_internal load.c:866:9
#8 0x64ee1a6754d6 in rb_load_entrypoint load.c:908:5
#9 0x64ee1a6790a5 in rb_f_load load.c:950:12
#10 0x64ee1a97043b in vm_call_cfunc_with_frame_ vm_insnhelper.c:3899:11
#11 0x64ee1a957d0b in vm_call_method_each_type vm_insnhelper.c:4891:16
#12 0x64ee1a95779b in vm_call_method vm_insnhelper.c
#13 0x64ee1a91a9ad in vm_sendish vm_insnhelper.c:6213:15
#14 0x64ee1a91a9ad in vm_exec_core insns.def:909:11
#15 0x64ee1a9083bd in rb_vm_exec vm.c:2875:22
#16 0x64ee1a54bccc in rb_ec_exec_node eval.c:299:9
#17 0x64ee1a54b993 in ruby_run_node eval.c:337:30
#18 0x64ee1a547f50 in rb_main main.c:42:12
#19 0x64ee1a547f50 in main main.c:62:12
#20 0x7f8507a2a1c9 in __libc_start_call_main csu/../sysdeps/nptl/libc_start_call_main.h:58:16
#21 0x7f8507a2a28a in __libc_start_main csu/../csu/libc-start.c:360:3
#22 0x64ee1a45fb74 in _start (ruby+0x197b74) (BuildId: 5b18a734908cec0a5f93267f1f350850b0f3fb6d)
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Bumps github.com/microsoft/vcpkg from master to 2025.08.27. This release includes the previously tagged commit.
Release notes
Sourced from github.com/microsoft/vcpkg's releases.
... (truncated)
Commits
120deac[eigen3] update to 3.4.1-250818 from 3.4.0 (#34542)48f6fbb[libwebp] SIMD is optional on emscripten (#47076)501e463[abseil] Fix mingw monolithic dll build (#47059)c8797aatriplets: Add an arm64 FreeBSD triplet (#47045)d0acd43[yajl] Fix #44841: Replace deprecated LOCATION property in CMake (#47039)7156a42[luau] update to 0.688 (#47038)de8739dupdate async-mqtt port to 10.2.2 (#47035)85fd966[ace] Upgrade to ACE+TAO 8.0.5 (#47023)4efa934[rapidcsv] update to 8.88 (#47021)063d57b[aws-c-io] update to 0.21.4 (#47017)Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
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