- ruby-core - ml.ruby-lang.org

[ruby-core:119980] [Ruby master Bug#20903] Segmentation fault when string encoding
by bendrissou (Bachir Bendrissou) 22 Nov '24

22 Nov '24

Issue #20903 has been reported by bendrissou (Bachir Bendrissou). ---------------------------------------- Bug #20903: Segmentation fault when string encoding https://bugs.ruby-lang.org/issues/20903 * Author: bendrissou (Bachir Bendrissou) * Status: Open * ruby -v: 3.3.5 * Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN ---------------------------------------- I am getting a segmentation fault. The error appears to relate to the string encoding function: `rb_enc_str_coderange`. Test case: ``` require 'test/unit' require "-test-/econv" class Test_EConvAppend < Test::Unit::TestCase def test_econv_str_append_valid ec=Bug::EConv.new("utf-8","cp932") ret=ec.append("\u3042"*30,5) end end ``` Output: ``` test.rb:8: [BUG] Segmentation fault at 0x000000000000000b ruby 3.3.5 (2024-09-03 revision ef084cc8f4) [x86_64-linux] -- Control frame information ----------------------------------------------- c:0026 p:---- s:0152 e:000151 CFUNC :append c:0025 p:0022 s:0146 e:000145 METHOD test.rb:8 c:0024 p:0037 s:0140 e:000139 METHOD /home/benchmarks/ruby/program/tool/lib/test/unit/testcase.rb:202 c:0023 p:0052 s:0134 e:000133 METHOD /home/benchmarks/ruby/program/tool/lib/test/unit/testcase.rb:170 c:0022 p:0083 s:0125 e:000124 BLOCK /home/benchmarks/ruby/program/tool/lib/test/unit.rb:1552 [FINISH] c:0021 p:---- s:0118 e:000117 CFUNC :map c:0020 p:0103 s:0114 e:000113 METHOD /home/benchmarks/ruby/program/tool/lib/test/unit.rb:1539 c:0019 p:0035 s:0102 e:000101 METHOD /home/benchmarks/ruby/program/tool/lib/test/unit.rb:1332 c:0018 p:0010 s:0095 e:000093 BLOCK /home/benchmarks/ruby/program/tool/lib/test/unit.rb:793 [FINISH] c:0017 p:---- s:0089 e:000088 CFUNC :each c:0016 p:0047 s:0085 e:000084 METHOD /home/benchmarks/ruby/program/tool/lib/test/unit.rb:791 c:0015 p:0008 s:0078 e:000077 METHOD /home/benchmarks/ruby/program/tool/lib/test/unit.rb:828 c:0014 p:0127 s:0071 e:000070 METHOD /home/benchmarks/ruby/program/tool/lib/test/unit.rb:1485 c:0013 p:0016 s:0058 e:000057 METHOD /home/benchmarks/ruby/program/tool/lib/test/unit.rb:1269 c:0012 p:0005 s:0053 e:000052 METHOD /home/benchmarks/ruby/program/tool/lib/test/unit.rb:1660 c:0011 p:0006 s:0049 e:000048 BLOCK /home/benchmarks/ruby/program/tool/lib/test/unit.rb:1647 [FINISH] c:0010 p:---- s:0045 e:000044 CFUNC :each c:0009 p:0042 s:0041 e:000040 METHOD /home/benchmarks/ruby/program/tool/lib/test/unit.rb:1646 c:0008 p:0013 s:0036 e:000035 METHOD /home/benchmarks/ruby/program/tool/lib/test/unit.rb:1689 c:0007 p:0008 s:0031 e:000030 METHOD /home/benchmarks/ruby/program/tool/lib/test/unit.rb:1016 c:0006 p:0008 s:0025 e:000024 METHOD /home/benchmarks/ruby/program/tool/lib/test/unit.rb:861 c:0005 p:0017 s:0019 e:000018 METHOD /home/benchmarks/ruby/program/tool/lib/test/unit.rb:125 c:0004 p:0009 s:0014 e:000012 BLOCK /home/benchmarks/ruby/program/tool/lib/test/unit.rb:1700 c:0003 p:0015 s:0010 e:000009 METHOD /home/benchmarks/ruby/program/tool/lib/test/unit.rb:131 c:0002 p:0013 s:0006 e:000005 BLOCK /home/benchmarks/ruby/program/tool/lib/test/unit.rb:1699 [FINISH] c:0001 p:0000 s:0003 E:0026f0 DUMMY [FINISH] -- Ruby level backtrace information ---------------------------------------- /home/benchmarks/ruby/program/tool/lib/test/unit.rb:1699:in `block in autorun' /home/benchmarks/ruby/program/tool/lib/test/unit.rb:131:in `run_once' /home/benchmarks/ruby/program/tool/lib/test/unit.rb:1700:in `block (2 levels) in autorun' /home/benchmarks/ruby/program/tool/lib/test/unit.rb:125:in `run' /home/benchmarks/ruby/program/tool/lib/test/unit.rb:861:in `run' /home/benchmarks/ruby/program/tool/lib/test/unit.rb:1016:in `run' /home/benchmarks/ruby/program/tool/lib/test/unit.rb:1689:in `run' /home/benchmarks/ruby/program/tool/lib/test/unit.rb:1646:in `_run' /home/benchmarks/ruby/program/tool/lib/test/unit.rb:1646:in `each' /home/benchmarks/ruby/program/tool/lib/test/unit.rb:1647:in `block in _run' /home/benchmarks/ruby/program/tool/lib/test/unit.rb:1660:in `run_tests' /home/benchmarks/ruby/program/tool/lib/test/unit.rb:1269:in `_run_anything' /home/benchmarks/ruby/program/tool/lib/test/unit.rb:1485:in `_run_anything' /home/benchmarks/ruby/program/tool/lib/test/unit.rb:828:in `_run_suites' /home/benchmarks/ruby/program/tool/lib/test/unit.rb:791:in `_run_suites' /home/benchmarks/ruby/program/tool/lib/test/unit.rb:791:in `each' /home/benchmarks/ruby/program/tool/lib/test/unit.rb:793:in `block in _run_suites' /home/benchmarks/ruby/program/tool/lib/test/unit.rb:1332:in `_run_suite' /home/benchmarks/ruby/program/tool/lib/test/unit.rb:1539:in `_run_suite' /home/benchmarks/ruby/program/tool/lib/test/unit.rb:1539:in `map' /home/benchmarks/ruby/program/tool/lib/test/unit.rb:1552:in `block in _run_suite' /home/benchmarks/ruby/program/tool/lib/test/unit/testcase.rb:170:in `run' /home/benchmarks/ruby/program/tool/lib/test/unit/testcase.rb:202:in `run_test' test.rb:8:in `test_econv_str_append_valid' test.rb:8:in `append' -- Threading information --------------------------------------------------- Total ractor count: 1 Ruby thread count for this ractor: 1 -- Machine register context ------------------------------------------------ RIP: 0x0000564c868ae504 RBP: 0x0000564c87e51bc0 RSP: 0x00007ffd6b628e68 RAX: 0x0000000000000000 RBX: 0x000000000000005a RCX: 0x000000000000000b RDX: 0x000000000000005a RDI: 0x000000000000000b RSI: 0x00007f35092de3a8 R8: 0x0000000000000000 R9: 0x000000000000001f R10: 0x00007f35093d448d R11: 0x0000564c868fe070 R12: 0x00007f35092de3a8 R13: 0x000000000000005a R14: 0x0000564c87e51bc0 R15: 0x000000000000000b EFL: 0x0000000000010202 -- C level backtrace information ------------------------------------------- /home/benchmarks/ruby/program/build/ruby(rb_print_backtrace+0x11) [0x564c8694aa7f] ../vm_dump.c:820 /home/benchmarks/ruby/program/build/ruby(rb_vm_bugreport) ../vm_dump.c:1151 /home/benchmarks/ruby/program/build/ruby(rb_bug_for_fatal_signal+0xfc) [0x564c86b16a6c] ../error.c:1065 /home/benchmarks/ruby/program/build/ruby(sigsegv+0x4d) [0x564c868991fd] ../signal.c:926 /lib/x86_64-linux-gnu/libpthread.so.0(__restore_rt+0x0) [0x7f3524817420] /home/benchmarks/ruby/program/build/ruby(RB_FL_TEST_RAW+0x0) [0x564c868ae504] ../string.c:770 /home/benchmarks/ruby/program/build/ruby(RB_ENC_CODERANGE) ../include/ruby/internal/encoding/coderange.h:97 /home/benchmarks/ruby/program/build/ruby(rb_enc_str_coderange) ../string.c:771 /home/benchmarks/ruby/program/build/ruby(rb_econv_append+0x52) [0x564c868fdde2] ../transcode.c:1865 /home/benchmarks/ruby/program/build/ruby(rb_econv_substr_append+0x22) [0x564c868fe0ce] ../transcode.c:1913 /home/benchmarks/ruby/program/build/ruby(rb_econv_str_append) ../transcode.c:1921 /home/benchmarks/ruby/program/build/ruby(vm_call_cfunc_with_frame_+0x7b) [0x564c8691db06] ../vm_insnhelper.c:3502 /home/benchmarks/ruby/program/build/ruby(vm_call_cfunc_with_frame) ../vm_insnhelper.c:3530 /home/benchmarks/ruby/program/build/ruby(vm_call_cfunc_other) ../vm_insnhelper.c:3556 /home/benchmarks/ruby/program/build/ruby(vm_call_method_each_type+0x81) [0x564c8692d691] ../vm_insnhelper.c:4429 /home/benchmarks/ruby/program/build/ruby(vm_call_method+0xc4) [0x564c8692e374] ../vm_insnhelper.c:4581 /home/benchmarks/ruby/program/build/ruby(vm_sendish+0xe) [0x564c8693b19f] ../vm_insnhelper.c:5593 /home/benchmarks/ruby/program/build/ruby(vm_exec_core) insns.def:834 /home/benchmarks/ruby/program/build/ruby(rb_vm_exec+0x18e) [0x564c8692c6be] ../vm.c:2486 /home/benchmarks/ruby/program/build/ruby(invoke_block_from_c_bh+0x2ca) [0x564c8693035a] ../vm.c:1509 /home/benchmarks/ruby/program/build/ruby(rb_yield+0x70) [0x564c86930bc0] ../vm.c:1634 /home/benchmarks/ruby/program/build/ruby(RB_FL_TEST_RAW+0x0) [0x564c86a5f376] ../array.c:3633 /home/benchmarks/ruby/program/build/ruby(RB_FL_ANY_RAW) ../include/ruby/internal/fl_type.h:520 /home/benchmarks/ruby/program/build/ruby(rb_array_len) ../include/ruby/internal/core/rarray.h:259 /home/benchmarks/ruby/program/build/ruby(rb_ary_push) ../array.c:1340 /home/benchmarks/ruby/program/build/ruby(rb_ary_collect) ../array.c:3633 /home/benchmarks/ruby/program/build/ruby(vm_call_cfunc_with_frame_+0x78) [0x564c8691d795] ../vm_insnhelper.c:3502 /home/benchmarks/ruby/program/build/ruby(vm_call_cfunc_with_frame) ../vm_insnhelper.c:3530 /home/benchmarks/ruby/program/build/ruby(vm_sendish+0xe) [0x564c8693c4bf] ../vm_insnhelper.c:5593 /home/benchmarks/ruby/program/build/ruby(vm_exec_core) insns.def:814 /home/benchmarks/ruby/program/build/ruby(rb_vm_exec+0x18e) [0x564c8692c6be] ../vm.c:2486 /home/benchmarks/ruby/program/build/ruby(invoke_block_from_c_bh+0x2ca) [0x564c8693035a] ../vm.c:1509 /home/benchmarks/ruby/program/build/ruby(rb_yield+0x70) [0x564c86930bc0] ../vm.c:1634 /home/benchmarks/ruby/program/build/ruby(RB_FL_TEST_RAW+0x0) [0x564c86a5973c] ../array.c:2538 /home/benchmarks/ruby/program/build/ruby(RB_FL_ANY_RAW) ../include/ruby/internal/fl_type.h:520 /home/benchmarks/ruby/program/build/ruby(rb_array_len) ../include/ruby/internal/core/rarray.h:259 /home/benchmarks/ruby/program/build/ruby(rb_ary_each) ../array.c:2537 /home/benchmarks/ruby/program/build/ruby(vm_call_cfunc_with_frame_+0x78) [0x564c8691d795] ../vm_insnhelper.c:3502 /home/benchmarks/ruby/program/build/ruby(vm_call_cfunc_with_frame) ../vm_insnhelper.c:3530 /home/benchmarks/ruby/program/build/ruby(vm_sendish+0xe) [0x564c8693c4bf] ../vm_insnhelper.c:5593 /home/benchmarks/ruby/program/build/ruby(vm_exec_core) insns.def:814 /home/benchmarks/ruby/program/build/ruby(rb_vm_exec+0x18e) [0x564c8692c6be] ../vm.c:2486 /home/benchmarks/ruby/program/build/ruby(invoke_block_from_c_bh+0x2ca) [0x564c8693035a] ../vm.c:1509 /home/benchmarks/ruby/program/build/ruby(rb_yield+0x70) [0x564c86930bc0] ../vm.c:1634 /home/benchmarks/ruby/program/build/ruby(RB_FL_TEST_RAW+0x0) [0x564c86a5973c] ../array.c:2538 /home/benchmarks/ruby/program/build/ruby(RB_FL_ANY_RAW) ../include/ruby/internal/fl_type.h:520 /home/benchmarks/ruby/program/build/ruby(rb_array_len) ../include/ruby/internal/core/rarray.h:259 /home/benchmarks/ruby/program/build/ruby(rb_ary_each) ../array.c:2537 /home/benchmarks/ruby/program/build/ruby(vm_call_cfunc_with_frame_+0x78) [0x564c8691d795] ../vm_insnhelper.c:3502 /home/benchmarks/ruby/program/build/ruby(vm_call_cfunc_with_frame) ../vm_insnhelper.c:3530 /home/benchmarks/ruby/program/build/ruby(vm_sendish+0xe) [0x564c8693c4bf] ../vm_insnhelper.c:5593 /home/benchmarks/ruby/program/build/ruby(vm_exec_core) insns.def:814 /home/benchmarks/ruby/program/build/ruby(vm_exec_loop+0xa) [0x564c8692c937] ../vm.c:2513 /home/benchmarks/ruby/program/build/ruby(rb_vm_exec) ../vm.c:2492 /home/benchmarks/ruby/program/build/ruby(vm_invoke_proc+0x201) [0x564c86931421] ../vm.c:1509 /home/benchmarks/ruby/program/build/ruby(rb_vm_invoke_proc+0x33) [0x564c86931743] ../vm.c:1728 /home/benchmarks/ruby/program/build/ruby(rb_proc_call_kw+0x1a) [0x564c8682fcee] ../proc.c:957 /home/benchmarks/ruby/program/build/ruby(rb_proc_call) ../proc.c:967 /home/benchmarks/ruby/program/build/ruby(exec_end_procs_chain+0x43) [0x564c86740bfd] ../eval_jump.c:105 /home/benchmarks/ruby/program/build/ruby(rb_ec_exec_end_proc) ../eval_jump.c:120 /home/benchmarks/ruby/program/build/ruby(rb_ec_teardown+0xd5) [0x564c86740e35] ../eval.c:159 /home/benchmarks/ruby/program/build/ruby(rb_ec_cleanup+0x152) [0x564c86741042] ../eval.c:212 /home/benchmarks/ruby/program/build/ruby(ruby_run_node+0x59) [0x564c86741a29] ../eval.c:328 /home/benchmarks/ruby/program/build/ruby(rb_main+0x21) [0x564c8673c437] ../main.c:39 /home/benchmarks/ruby/program/build/ruby(main) ../main.c:58 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf3) [0x7f3524618083] [0x564c8673c48e] ``` -- https://bugs.ruby-lang.org/

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[ruby-core:119897] [Ruby master Bug#20890] MacOS 15.1, Macbook pro 2024 m4, YJIT: Kernel Panic on network access, works w/o YJIT
by markus_d (Markus Doits) 21 Nov '24

21 Nov '24

Issue #20890 has been reported by markus_d (Markus Doits). ---------------------------------------- Bug #20890: MacOS 15.1, Macbook pro 2024 m4, YJIT: Kernel Panic on network access, works w/o YJIT https://bugs.ruby-lang.org/issues/20890 * Author: markus_d (Markus Doits) * Status: Open * ruby -v: ruby 3.3.6 (2024-11-05 revision 75015d4c1f) [arm64-darwin24] * Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN ---------------------------------------- I'm getting the following panic which seems like it happens on network access, but *only when YJIT is enabled*: ``` panic(cpu 15 caller 0xfffffe00509d800c): [SPTM] VIOLATION_ILLEGAL_SPRR_INDEX: sptm_map_page(sptm.c:406) - page_fte(0xfffffde005159750), page_fte->type(0xe), new_sprr_index(0x7), new_pte(0x6001145892ce43), vaddr(0x11c2c8000) Debugger message: panic Memory ID: 0x6 OS release type: User OS version: 24B2083 Kernel version: Darwin Kernel Version 24.1.0: Thu Oct 10 21:06:57 PDT 2024; root:xnu-11215.41.3~3/RELEASE_ARM64_T6041 Fileset Kernelcache UUID: 918FFAAEF5863665571822DC0F4C5BC0 Kernel UUID: 58CD7EDF-BF0B-3375-B9F8-F2484179E8A1 Boot session UUID: CE59B2C1-E45D-47C9-84B7-B6659DA80D25 iBoot version: iBoot-11881.41.5 secure boot?: YES roots installed: 0 Paniclog version: 14 Debug Header address: 0xfffffe002bef5000 Debug Header entry count: 3 TXM load address: 0xfffffe003be74000 TXM UUID: 772CA8A2-ABBC-34D1-8CC3-C295F9A174FE Debug Header kernelcache load address: 0xfffffe004be74000 Debug Header kernelcache UUID: 918FFAAE-F586-3665-5718-22DC0F4C5BC0 SPTM load address: 0xfffffe002be74000 SPTM UUID: 9EF80C6B-0E45-300A-8EC1-8C49E7CA3D3B KernelCache slide: 0x0000000044e70000 KernelCache base: 0xfffffe004be74000 Kernel slide: 0x0000000044e78000 Kernel text base: 0xfffffe004be7c000 Kernel text exec slide: 0x0000000046534000 Kernel text exec base: 0xfffffe004d538000 mach_absolute_time: 0x30d81dc4f Epoch Time: sec usec Boot : 0x67334fd9 0x0001740d Sleep : 0x00000000 0x00000000 Wake : 0x00000000 0x00000000 Calendar: 0x673351f0 0x000386f7 Zone info: Zone map: 0xfffffe161110c000 - 0xfffffe361110c000 . VM : 0xfffffe161110c000 - 0xfffffe1adddd8000 . RO : 0xfffffe1ade000000 - 0xfffffe1c78000000 . GEN0 : 0xfffffe1c78000000 - 0xfffffe2144b30000 . GEN1 : 0xfffffe2144b30000 - 0xfffffe2611660000 . GEN2 : 0xfffffe2611660000 - 0xfffffe2ade190000 . GEN3 : 0xfffffe2ade190000 - 0xfffffe2faacc4000 . DATA : 0xfffffe2faacc4000 - 0xfffffe361110c000 Metadata: 0xfffffe8fe7cec000 - 0xfffffe8fefcec000 Bitmaps : 0xfffffe8fefcec000 - 0xfffffe8fffcec000 Extra : 0 - 0 CORE 0 recently retired instr at 0x0000000000000000 CORE 1 recently retired instr at 0x0000000000000000 CORE 2 recently retired instr at 0x0000000000000000 CORE 3 recently retired instr at 0x0000000000000000 CORE 4 is offline, skipping CORE 5 is offline, skipping CORE 6 is offline, skipping CORE 7 is offline, skipping CORE 8 is offline, skipping CORE 9 is offline, skipping CORE 10 recently retired instr at 0x0000000000000000 CORE 11 recently retired instr at 0x0000000000000000 CORE 12 recently retired instr at 0x0000000000000000 CORE 13 recently retired instr at 0x0000000000000000 CORE 14 recently retired instr at 0x0000000000000000 CORE 15 recently retired instr at 0x0000000000000000 TPIDRx_ELy = {1: 0xfffffe1c7e8626f8 0: 0x000000000000200f 0ro: 0x00000001e8fcbba0 } CORE 0: PC=0xfffffe004d6ebe30, LR=0xfffffe004d6ebe2c, FP=0xfffffe89f9197e40 CORE 1: PC=0xfffffe004d6ebe30, LR=0xfffffe004d6ebe2c, FP=0xfffffe89f82e3e40 CORE 2: PC=0xfffffe004d6ebe30, LR=0xfffffe004d6ebe2c, FP=0xfffffe89f895be40 CORE 3: PC=0xfffffe004d6ebe30, LR=0xfffffe004d6ebe2c, FP=0xfffffe89f9437e40 CORE 4: PC=0xfffffe004d6e1158, LR=0xfffffe004d6ebe24, FP=0xfffffe89f810fe40 CORE 5: PC=0xfffffe004d6e1138, LR=0xfffffe004d6ebe24, FP=0xfffffe89f6d0be40 CORE 6: PC=0xfffffe004d6e1138, LR=0xfffffe004d6ebe24, FP=0xfffffe89f9167e40 CORE 7: PC=0xfffffe004d5c54d0, LR=0xfffffe004d5c54cc, FP=0xfffffe89f895bed0 CORE 8: PC=0xfffffe004d6e1138, LR=0xfffffe004d6ebe24, FP=0xfffffe89f93efe40 CORE 9: PC=0xfffffe004d6e1138, LR=0xfffffe004d6ebe24, FP=0xfffffe89f930be40 CORE 10: PC=0xfffffe004d5c54d0, LR=0xfffffe004d5c54cc, FP=0xfffffe89f91d3ed0 CORE 11: PC=0xfffffe004d5c54d0, LR=0xfffffe004d5c54cc, FP=0xfffffe89f8fc7ed0 CORE 12: PC=0xfffffe004d5c54d0, LR=0xfffffe004d5c54cc, FP=0xfffffe89f6b2bed0 CORE 13: PC=0xfffffe004d5c54cc, LR=0xfffffe004d5c54cc, FP=0xfffffe89f9347ed0 CORE 14: PC=0xfffffe004d5c54d0, LR=0xfffffe004d5c54cc, FP=0xfffffe89f9233ed0 CORE 15 is the one that panicked. Check the full backtrace for details. Compressor Info: 0% of compressed pages limit (OK) and 0% of segments limit (OK) with 0 swapfiles and OK swap space Panicked task 0xfffffe2612a55698: 1621 pages, 2 threads: pid 5169: ruby Panicked thread: 0xfffffe1c7e8626f8, backtrace: 0xfffffe89f91df1e0, tid: 29558 lr: 0xfffffe004d588c60 fp: 0xfffffe89f91df270 lr: 0xfffffe004d6e7f34 fp: 0xfffffe89f91df2e0 lr: 0xfffffe004d6e6330 fp: 0xfffffe89f91df3a0 lr: 0xfffffe004d53dd18 fp: 0xfffffe89f91df3b0 lr: 0xfffffe004d588564 fp: 0xfffffe89f91df7a0 lr: 0xfffffe004ddf7370 fp: 0xfffffe89f91df7c0 lr: 0xfffffe00509d800c fp: 0xfffffe89f91df7d0 lr: 0xfffffe002bf35cd8 fp: 0xfffffde00beebed0 Kernel Extensions in backtrace: com.apple.sptm(24.1)[9EF80C6B-0E45-300A-8EC1-8C49E7CA3D3B]@0xfffffe002beec000->0xfffffe002bf37fff last started kext at 717123504: com.apple.filesystems.autofs 3.0 (addr 0xfffffe004c9950b0, size 5847) loaded kexts: com.apple.filesystems.autofs 3.0 com.apple.driver.AppleTopCaseHIDEventDriver 8410.3 com.apple.driver.CoreKDL 1 com.apple.driver.AppleBiometricServices 1 com.apple.driver.DiskImages.ReadWriteDiskImage 493.0.0 com.apple.driver.DiskImages.UDIFDiskImage 493.0.0 com.apple.driver.DiskImages.RAMBackingStore 493.0.0 com.apple.driver.DiskImages.FileBackingStore 493.0.0 com.apple.driver.AppleSmartBatteryManager 161.0.0 com.apple.driver.AppleThunderboltIP 4.0.3 com.apple.driver.AppleUSBDeviceNCM 5.0.0 com.apple.driver.AppleFileSystemDriver 3.0.1 com.apple.nke.l2tp 1.9 com.apple.filesystems.tmpfs 1 com.apple.filesystems.nfs 1 com.apple.filesystems.lifs 1 com.apple.filesystems.apfs 2313.41.1 com.apple.IOTextEncryptionFamily 1.0.0 com.apple.filesystems.hfs.kext 674 com.apple.security.BootPolicy 1 com.apple.BootCache 40 com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0 com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1 com.apple.driver.AppleALSColorSensor 1.0.0d1 com.apple.driver.ApplePMP 1 com.apple.driver.AppleT6041CLPC 1 com.apple.driver.AppleTypeCRetimer 1.0.0 com.apple.driver.SEPHibernation 1 com.apple.driver.AppleCS42L84Audio 810.2 com.apple.driver.AppleSmartIO2 1 com.apple.AppleEmbeddedSimpleSPINORFlasher 1 com.apple.driver.AppleSN012776Amp 810.2 com.apple.driver.AppleT6041SOCTuner 1 com.apple.driver.AppleT6041MCC 1 com.apple.driver.AppleSamsungSerial 1.0.0d1 com.apple.driver.AppleSerialShim 1 com.apple.driver.AppleQSPIMC 1 com.apple.driver.AppleT6041PMGR 1 com.apple.driver.AppleS8000DWI 1.0.0d1 com.apple.driver.AppleEventLogHandler 1 com.apple.driver.AppleS8000AES 1 com.apple.driver.ApplePMPFirmware 1 com.apple.driver.ApplePMUFirmwareDriver 1.0.0 com.apple.driver.AppleDPDisplayTCON 1 com.apple.driver.AppleInterruptControllerV3 1.0.0d1 com.apple.driver.AppleBCMWLANBusInterfacePCIe 1 com.apple.driver.AppleBluetoothModule 1 com.apple.AGXG16X 322.10 com.apple.driver.AppleSecureRepair 1.0.0 com.apple.driver.usb.AppleSynopsysUSB40XHCI 1 com.apple.driver.AppleAVD 807 com.apple.driver.AppleJPEGDriver 7.1.5 com.apple.driver.AppleMobileDispT604X-DCP 140.0 com.apple.driver.AppleAVE2 803.36.1 com.apple.driver.AppleProResHW 426.1 com.apple.driver.AppleT8110DART 1 com.apple.driver.AudioDMAController-T604x 400.97 com.apple.driver.AppleS5L8920XPWM 1.0.0d1 com.apple.driver.AppleSDXC 3.5.3 com.apple.driver.AppleSPIMC 1 com.apple.driver.AppleS5L8940XI2C 1.0.0d2 com.apple.driver.AppleT6041 1 com.apple.driver.AppleM68Buttons 1.0.0d1 com.apple.iokit.IOUserEthernet 1.0.1 com.apple.driver.usb.AppleUSBUserHCI 1 com.apple.iokit.IOKitRegistryCompatibility 1 com.apple.iokit.EndpointSecurity 1 com.apple.driver.AppleDiskImages2 379.0.11 com.apple.AppleSystemPolicy 2.0.0 com.apple.kec.InvalidateHmac 1 com.apple.kec.AppleEncryptedArchive 1 com.apple.driver.driverkit.serial 6.0.0 com.apple.driver.AppleHSBluetoothDriver 8410.3 com.apple.driver.IOBluetoothHIDDriver 9.0.0 com.apple.driver.AppleActuatorDriver 8410.3 com.apple.driver.AppleMultitouchDriver 8410.3 com.apple.driver.AppleHIDKeyboard 8010.1 com.apple.driver.AppleMesaSEPDriver 100.99 com.apple.iokit.IOBiometricFamily 1 com.apple.driver.DiskImages.KernelBacked 493.0.0 com.apple.iokit.IOAVBFamily 1300.26 com.apple.driver.AppleXsanScheme 3 com.apple.driver.AppleConvergedIPCOLYBTControl 1 com.apple.driver.AppleConvergedPCI 1 com.apple.driver.AppleBluetoothDebug 1 com.apple.driver.AppleBTM 1.0.1 com.apple.driver.usb.networking 5.0.0 com.apple.driver.AppleThunderboltPCIDownAdapter 4.1.1 com.apple.driver.AppleThunderboltUSBDownAdapter 1.0.4 com.apple.driver.AppleThunderboltDPInAdapter 8.5.1 com.apple.driver.AppleThunderboltDPAdapterFamily 8.5.1 com.apple.nke.ppp 1.9 com.apple.driver.AppleBSDKextStarter 3 com.apple.kext.triggers 1.0 com.apple.driver.IOHIDPowerSource 1 com.apple.driver.AppleCallbackPowerSource 1 com.apple.filesystems.hfs.encodings.kext 1 com.apple.driver.AppleSyntheticGameController 12.1.3 com.apple.plugin.IOgPTPPlugin 1300.51 com.apple.driver.IOPAudioIOBufferDevice 200.39 com.apple.driver.IOPAudioLPMicDevice 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com.apple.driver.RTBuddy 1.0.0 com.apple.driver.AppleEmbeddedTempSensor 1.0.0 com.apple.driver.AppleARMPMU 1.0 com.apple.iokit.IOAccessoryManager 1.0.0 com.apple.driver.AppleOnboardSerial 1.0 com.apple.iokit.IOSerialFamily 11 com.apple.iokit.IOSCSIBlockCommandsDevice 498 com.apple.iokit.IOSCSIArchitectureModelFamily 498 com.apple.driver.AppleRSMChannel 1 com.apple.iokit.IORSMFamily 1 com.apple.driver.AppleLockdownMode 1 com.apple.driver.AppleIPAppender 1.0 com.apple.iokit.IOSkywalkFamily 1.0 com.apple.driver.mDNSOffloadUserClient 1.0.1b8 com.apple.iokit.IONetworkingFamily 3.4 com.apple.driver.AppleFDEKeyStore 28.30 com.apple.driver.AppleEffaceableStorage 1.0 com.apple.driver.AppleCredentialManager 1.0 com.apple.driver.AppleSEPManager 1.0.1 com.apple.driver.IODARTFamily 1 com.apple.driver.AppleA7IOP 1.0.2 com.apple.driver.IOSlaveProcessor 1 com.apple.driver.AppleBiometricSensor 2 com.apple.iokit.IOHIDFamily 2.0.0 com.apple.AUC 1.0 com.apple.iokit.IOSurface 372.2.3 com.apple.iokit.IOAVFamily 1.0.0 com.apple.iokit.IOHDCPFamily 1.0.0 com.apple.iokit.IOCECFamily 1 com.apple.iokit.IOAudio2Family 1.0 com.apple.driver.AppleIISController 400.1 com.apple.driver.AppleAudioClockLibs 400.9 com.apple.driver.FairPlayIOKit 72.10.0 com.apple.driver.AppleARMPlatform 1.0.2 com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0 com.apple.iokit.IOReportFamily 47 com.apple.security.quarantine 4 com.apple.security.sandbox 300.0 com.apple.iokit.IOStorageFamily 2.1 com.apple.kext.AppleMatch 1.0.0d1 com.apple.driver.AppleMobileFileIntegrity 1.0.5 com.apple.iokit.CoreAnalyticsFamily 1 com.apple.security.AppleImage4 7.0.0 com.apple.kext.CoreTrust 1 com.apple.iokit.IOCryptoAcceleratorFamily 1.0.1 com.apple.kec.pthread 1 com.apple.kec.Libm 1 com.apple.kec.Compression 1.0 com.apple.kec.corecrypto 14.0 ``` I have no problems with a Macbook pro 2023 m2 with the same configuration, event with YJIT. I can reproduce the panic with 100 % success rate by just starting my Rails app and trying to access it. Or by editing a file in neovim which uses some ruby plugins. I compiled ruby w/o YJIT and the panics seem to be gone. `ruby -v` is without YJIT (same revision with YJIT panics). -- https://bugs.ruby-lang.org/

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[ruby-core:119735] [Ruby master Bug#20866] Prism assertion when running simplecov with branch coverage and requiring certain code
by Earlopain (A S) 20 Nov '24

20 Nov '24

Issue #20866 has been reported by Earlopain (A S). ---------------------------------------- Bug #20866: Prism assertion when running simplecov with branch coverage and requiring certain code https://bugs.ruby-lang.org/issues/20866 * Author: Earlopain (A S) * Status: Open * ruby -v: ruby 3.4.0dev (2024-11-05T13:53:41Z master ed06f018bd) +PRISM [x86_64-linux] * Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN ---------------------------------------- I stumbled upon the following bug report against simplecov: https://github.com/simplecov-ruby/simplecov/issues/1113 I reduced the error down to the following: ```rb # Gemfile source "https://rubygems.org" gem "simplecov" ``` ```rb # test.rb require "bundler" require "simplecov" SimpleCov.start do enable_coverage :branch end require_relative "external" ``` ```rb # external.rb def perform_completion case @completion_state when CompletionState::PERFECT_MATCH @dig_perfect_match_proc&.(@perfect_matched) end end ``` ```sh $ bundle exec ruby test.rb ruby: prism/util/pm_newline_list.c:93: pm_newline_list_line_column: Assertion `cursor >= list->start' failed. Aborted (core dumped) ``` When running with `parse.y` the error doesn't occur. -- https://bugs.ruby-lang.org/

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[ruby-core:119783] [Ruby master Bug#20877] Introduce (public) debug assertion for holding the GVL.
by ioquatix (Samuel Williams) 20 Nov '24

20 Nov '24

Issue #20877 has been reported by ioquatix (Samuel Williams). ---------------------------------------- Bug #20877: Introduce (public) debug assertion for holding the GVL. https://bugs.ruby-lang.org/issues/20877 * Author: ioquatix (Samuel Williams) * Status: Open * Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN ---------------------------------------- I found issues with `zlib.c` calling `rb_` functions without holding the GVL: https://bugs.ruby-lang.org/issues/20863 ## Background The GVL must be held before many of Ruby's C functions can be called. However, few functions enforce this. Even thought it may work in many scenarios, it may break unexpectedly (SEGFAULT etc). ## Proposal I think we should (1) add more debug checks within CRuby for detecting this invalid usage and (2) expose a public macro that can be used by Ruby's native extensions so that they may do the same. The current internal implementation looks like this: ```c RUBY_ASSERT(ruby_thread_has_gvl_p()); ``` While fixing `zlib.c`, I made a simple PR to demonstrate the change: https://github.com/ruby/ruby/pull/11975 `ruby_thread_has_gvl_p` is not a public interface at this time, so we can't use it in native extensions. I would like to consider adding a public macro to allow for this, e.g. `RUBY_DEBUG_ASSERT_GVL` or something similar. Finally, I propose to add this macro to all methods that should be executed with the GVL so that we catch invalid usage. If the name `RUBY_DEBUG_ASSERT_GVL` is not suitable / too specific, maybe some other ideas: - `RUBY_DEBUG_ASSERT_THREAD` - `RUBY_DEBUG_ASSERT_CURRENT_THREAD` or `RUBY_DEBUG_ASSERT_CURRENT_THREAD_P` - `RUBY_DEBUG_ASSERT_GVL` or `RUBY_DEBUG_ASSERT_GVL_P` - `RUBY_DEBUG_ASSERT_INTERPRETER_LOCKED` I don't have a strong opinion on naming, but I have a strong opinion about preventing invalid usage. -- https://bugs.ruby-lang.org/

1 1

[ruby-core:113489] [Ruby master Bug#19642] Remove vectored read/write from `io.c`.
by ioquatix (Samuel Williams) 20 Nov '24

20 Nov '24

Issue #19642 has been reported by ioquatix (Samuel Williams). ---------------------------------------- Bug #19642: Remove vectored read/write from `io.c`. https://bugs.ruby-lang.org/issues/19642 * Author: ioquatix (Samuel Williams) * Status: Open * Priority: Normal * Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN ---------------------------------------- https://github.com/socketry/async/issues/228#issuecomment-1546789910 is a comment from the kernel developer who tells us that `writev` is always worse than `write` system call. A large amount of complexity in `io.c` comes from optional support from `writev`. So, I'd like to remove support for `writev`. I may try to measure the performance before/after. However it may not show much difference, except that the implementation in `io.c` can be much simpler. -- https://bugs.ruby-lang.org/

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[ruby-core:119972] [Ruby master Feature#20902] Allow `IO::Buffer#copy` to release the GVL.
by ioquatix (Samuel Williams) 20 Nov '24

20 Nov '24

Issue #20902 has been reported by ioquatix (Samuel Williams). ---------------------------------------- Feature #20902: Allow `IO::Buffer#copy` to release the GVL. https://bugs.ruby-lang.org/issues/20902 * Author: ioquatix (Samuel Williams) * Status: Open ---------------------------------------- Related to <https://bugs.ruby-lang.org/issues/20876>. ## Background `IO::Buffer#copy` execution time is proportional to the length of the data copied. As such, large copies can take a long time (100ms+). Currently, the GVL is not released, which can stall the Ruby interpreter. ## Proposal Pull Request: https://github.com/ruby/ruby/pull/12021 If the size of the data to be copied is larger than a specific amount (heuristic), we will perform `memmove` using `rb_nogvl`. The initial size heuristic is set to 1MiB. This won't be perfect for every system, but should be good enough to avoid ms+ stalls. ## Results I measured the difference: | GVL | Threads | Buffer Size | Total Duration | Throughput (MB/s) | |-----|---------|-------------|----------------|-------------------| | Yes | 1 | 1 | 0.12ms | 8393.09 | | Yes | 1 | 5 | 0.51ms | 9857.7 | | Yes | 1 | 10 | 1.12ms | 8937.54 | | Yes | 1 | 20 | 2.22ms | 9015.95 | | Yes | 2 | 1 | 0.24ms | 8307.07 | | Yes | 2 | 5 | 1.13ms | 8819.58 | | Yes | 2 | 10 | 1.49ms | 13385.35 | | Yes | 2 | 20 | 5.63ms | 7110.8 | | Yes | 4 | 1 | 0.92ms | 4360.18 | | Yes | 4 | 5 | 2.08ms | 9606.58 | | Yes | 4 | 10 | 4.51ms | 8863.13 | | Yes | 4 | 20 | 9.3ms | 8601.41 | | Yes | 8 | 1 | 1.22ms | 6574.93 | | Yes | 8 | 5 | 3.56ms | 11239.27 | | Yes | 8 | 10 | 7.31ms | 10943.68 | | Yes | 8 | 20 | 15.57ms | 10274.99 | | Yes | 16 | 1 | 1.95ms | 8220.16 | | Yes | 16 | 5 | 5.51ms | 14518.05 | | Yes | 16 | 10 | 13.77ms | 11618.96 | | Yes | 16 | 20 | 27.21ms | 11759.43 | | Yes | 32 | 1 | 3.24ms | 9891.05 | | Yes | 32 | 5 | 11.42ms | 14007.41 | | Yes | 32 | 10 | 21.64ms | 14786.48 | | Yes | 32 | 20 | 45.52ms | 14060.25 | | No | 1 | 1 | 0.13ms | 7582.85 | | No | 1 | 5 | 0.44ms | 11248.55 | | No | 1 | 10 | 1.11ms | 9029.91 | | No | 1 | 20 | 2.43ms | 8228.42 | | No | 2 | 1 | 0.18ms | 11245.61 | | No | 2 | 5 | 0.96ms | 10396.76 | | No | 2 | 10 | 1.9ms | 10501.59 | | No | 2 | 20 | 3.16ms | 12656.77 | | No | 4 | 1 | 0.69ms | 5827.76 | | No | 4 | 5 | 1.15ms | 17440.54 | | No | 4 | 10 | 2.31ms | 17307.79 | | No | 4 | 20 | 4.11ms | 19483.68 | | No | 8 | 1 | 0.67ms | 11954.1 | | No | 8 | 5 | 1.3ms | 30713.68 | | No | 8 | 10 | 2.05ms | 38990.98 | | No | 8 | 20 | 4.15ms | 38552.37 | | No | 16 | 1 | 0.96ms | 16698.03 | | No | 16 | 5 | 1.46ms | 54782.47 | | No | 16 | 10 | 2.74ms | 58295.64 | | No | 16 | 20 | 4.89ms | 65482.43 | | No | 32 | 1 | 1.82ms | 17554.27 | | No | 32 | 5 | 2.68ms | 59673.59 | | No | 32 | 10 | 3.87ms | 82733.34 | | No | 32 | 20 | 6.93ms | 92297.47 | In the base case, the performance is about the same, but in the best case, the throughput is significantly better: 15GiB/s vs 92GiB/s (32 threads copying 20MiB of data). -- https://bugs.ruby-lang.org/

1 1

[ruby-core:119958] [Ruby master Bug#20900] Net.send(:remove_const, :HTTPSession) does not emit warnings
by yahonda (Yasuo Honda) 19 Nov '24

19 Nov '24

Issue #20900 has been reported by yahonda (Yasuo Honda). ---------------------------------------- Bug #20900: Net.send(:remove_const, :HTTPSession) does not emit warnings https://bugs.ruby-lang.org/issues/20900 * Author: yahonda (Yasuo Honda) * Status: Open * ruby -v: ruby 3.3.6 (2024-11-05 revision 75015d4c1f) [x86_64-linux] * Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN ---------------------------------------- After https://github.com/ruby/net-http/pull/189 has been merged and cherry-picked to Ruby master branch, `Net.send(:remove_const, :HTTPSession)` gets the NameError. This code should emit warnings against Ruby 3.3 or earlier versions of Ruby but actually it does not. ``` $ ruby -v ruby 3.4.0dev (2024-11-18T15:04:50Z :detached: 4a7ac694e5) +PRISM [x86_64-linux] $ irb -w ... snip ... irb(main):001> require 'net/http' => true irb(main):002> Net.send(:remove_const, :HTTPSession) (irb):2:in 'Module#remove_const': constant Net::HTTPSession not defined (NameError) from (irb):2:in '<main>' from <internal:kernel>:168:in 'Kernel#loop' from /home/yahonda/.rbenv/versions/trunk/lib/ruby/gems/3.4.0+1/gems/irb-1.14.1/exe/irb:9:in '<top (required)>' from /home/yahonda/.rbenv/versions/trunk/bin/irb:25:in 'Kernel#load' from /home/yahonda/.rbenv/versions/trunk/bin/irb:25:in '<main>' irb(main):003> ``` ### Steps to reproduce Here are the steps to see if the warnings are emitted against Ruby 3.3. $ ruby -v ruby 3.3.6 (2024-11-05 revision 75015d4c1f) [x86_64-linux] $ irb -w ``` require 'net/http' Net::HTTPSession Net.send(:remove_const, :HTTPSession) ``` ### Expected behavior Both of `Net::HTTPSession` and `Net.send(:remove_const, :HTTPSession)` should emit the `warning: constant Net::HTTPSession is deprecated` . ### Actual behavior Only `Net::HTTPSession` emits the warnings. `Net.send(:remove_const, :HTTPSession)` does not emit any warnings. ``` $ irb -w irb(main):001> require 'net/http' irb(main):002> => true irb(main):003> Net::HTTPSession (irb):3: warning: constant Net::HTTPSession is deprecated => Net::HTTP irb(main):004> Net.send(:remove_const, :HTTPSession) => Net::HTTP irb(main):005> ``` -- https://bugs.ruby-lang.org/

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[ruby-core:119772] [Ruby master Feature#20876] Introduce `Fiber::Scheduler#blocking_operation_wait` to avoid stalling the event loop.
by ioquatix (Samuel Williams) 19 Nov '24

19 Nov '24

Issue #20876 has been reported by ioquatix (Samuel Williams). ---------------------------------------- Feature #20876: Introduce `Fiber::Scheduler#blocking_operation_wait` to avoid stalling the event loop. https://bugs.ruby-lang.org/issues/20876 * Author: ioquatix (Samuel Williams) * Status: Open ---------------------------------------- This is an evolution of the previous proposal: https://bugs.ruby-lang.org/issues/20855 ## Background The current Fiber Scheduler performance can be significantly impacted by blocking operations that cannot be deferred to the event loop, particularly in high-concurrency environments where Fibers rely on non-blocking operations for efficient task execution. ## Proposal Pull Request: https://github.com/ruby/ruby/pull/12016 We will introduce a new fiber scheduler hook called `blocking_operation_work`: ```ruby class MySchduler # ... def blocking_operation_wait(work) # Example implementation: Thread.new(&work).join end end ``` We introduce a new flag for `rb_nogvl`: `RB_NOGVL_BLOCKING_OPERATION` which indicates that `rb_nogvl(func, ...)` is a blocking operation that is safe to execute on a different thread or thread pool. When a C extension invokes `rb_nogvl(..., RB_NOGVL_BLOCKING_OPERATION)`, and a fiber scheduler is available, all the arguments will be saved into a instance of a callable object (at this time a `Proc`) called `work`. When `work` is `#call`ed, it will execute `rb_nogvl` again with all the same arguments. The fiber scheduler can decide how to execute that work, e.g. on a separate thread, to mitigate the performance impact of the blocking operation on the event loop. ![](clipboard-202411070126-fbqpn.png) ## Example Using the branch of `async` gem: https://github.com/socketry/async/pull/352/files and enabling zlib deflate to use this feature, the following performance improvement was achieved: ```ruby require "zlib" require "async" require "benchmark" DATA = Random.new.bytes(1024*1024*100) duration = Benchmark.measure do Async do 10.times do Async do Zlib.deflate(DATA) end end end end # Ruby 3.3.4: ~16 seconds # Ruby 3.4.0 + PR: ~2 seconds. ``` ---Files-------------------------------- clipboard-202411070126-fbqpn.png (135 KB) -- https://bugs.ruby-lang.org/

2 2

[ruby-core:111966] [Ruby master Feature#19366] Rename/alias Refinedment#refined_class => #refined_module
by zverok (Victor Shepelev) 19 Nov '24

19 Nov '24

Issue #19366 has been reported by zverok (Victor Shepelev). ---------------------------------------- Feature #19366: Rename/alias Refinedment#refined_class => #refined_module https://bugs.ruby-lang.org/issues/19366 * Author: zverok (Victor Shepelev) * Status: Open * Priority: Normal ---------------------------------------- In #12737, `Refinement#refined_class` is introduced. As "module" is more generic concept than "class", the name misleadingly implies that either this method doesn't returns refined _modules_, or modules can't be refined. This is obviously not true and trivially disproved: ```ruby module Refs refine Enumerable do def foo = puts 'foo' end end Refs.refinements[0].refined_class #=> Enumerable. Which is, well, not a class. # The refinement is usable, so it is not a mute concept: using Refs [1, 2, 3].foo # prints "foo" successfully ``` I believe we refer to "modules" when some feature applies to modules and classes. Unless there is some deeper consideration for the current naming (I don't see justification in #12737, but I might miss something), the method should be renamed or aliased. PS: Sorry for a huge amount of "nitpicky" issues after the version release. Typically, those concerns emerge while I am working on the [changelog](https://rubyreferences.github.io/rubychanges/), and I am usually trying to start the work at least a month before the release. Unfortunately, due to you-know-what, I was unable to do it in time this year. After the 3.2 changelog, I plan to switch to the "master changelog" approach (following the development with the "current unreleased changes" document) this year. Unless I'll be unable to due to reasons not in my control. -- https://bugs.ruby-lang.org/

4 3

[ruby-core:119960] [Ruby master Feature#20901] What's status of Refinement#refined_class?
by hsbt (Hiroshi SHIBATA) 19 Nov '24

19 Nov '24

Issue #20901 has been reported by hsbt (Hiroshi SHIBATA). ---------------------------------------- Feature #20901: What's status of Refinement#refined_class? https://bugs.ruby-lang.org/issues/20901 * Author: hsbt (Hiroshi SHIBATA) * Status: Assigned * Assignee: shugo (Shugo Maeda) ---------------------------------------- I found the following code in `eval.c`. ``` rb_warn_deprecated_to_remove("3.4", "Refinement#refined_class", "Refinement#target"); ``` @shugo Should we remove `Refinement#refined_class` at Ruby 3.4? -- https://bugs.ruby-lang.org/

1 0