Bug #20099
Updated by jirutka (Jakub Jirutka) 4 months ago
It does not segfault when I override `optflags` to `-O2` (default is `-O3`).
```
Configuration summary for ruby version 3.3.0
* Installation prefix: /usr
* exec prefix: ${prefix}
* arch: s390x-linux-musl
* site arch: ${arch}
* RUBY_BASE_NAME: ruby
* enable shared: yes
* ruby lib prefix: ${libdir}/${RUBY_BASE_NAME}
* site libraries path: ${rubylibprefix}/${sitearch}
* vendor path: ${rubylibprefix}/vendor_ruby
* target OS: linux-musl
* compiler: gcc
* with thread: pthread
* with coroutine: ucontext
* enable shared libs: yes
* dynamic library ext: so
* CFLAGS: ${optflags} ${debugflags} ${warnflags}
* LDFLAGS: -L. -Wl,--as-needed,-O1,--sort-common \
-fstack-protector-strong -rdynamic \
-Wl,-export-dynamic -Wl,--no-as-needed
* DLDFLAGS: -Wl,--as-needed,-O1,--sort-common \
-Wl,--compress-debug-sections=zlib
* optflags: -O3 -fno-fast-math
* debugflags: -ggdb3
* warnflags: -Wall -Wextra -Wdeprecated-declarations \
-Wdiv-by-zero -Wduplicated-cond \
-Wimplicit-function-declaration -Wimplicit-int \
-Wpointer-arith -Wwrite-strings \
-Wold-style-definition -Wimplicit-fallthrough=0 \
-Wmissing-noreturn -Wno-cast-function-type \
-Wno-constant-logical-operand -Wno-long-long \
-Wno-missing-field-initializers \
-Wno-overlength-strings \
-Wno-packed-bitfield-compat \
-Wno-parentheses-equality -Wno-self-assign \
-Wno-tautological-compare -Wno-unused-parameter \
-Wno-unused-value -Wsuggest-attribute=format \
-Wsuggest-attribute=noreturn -Wunused-variable \
-Wmisleading-indentation -Wundef
* strip command: strip -S -x
* install doc: rdoc
* YJIT support: no
* RJIT support: no
* man page type: man
* search path: /usr/lib/site_ruby/$(ruby_ver)/s390x-linux
---
BASERUBY = ./tool/missing-baseruby.bat
CC = gcc
LD = ld
LDSHARED = gcc -shared
CFLAGS = -O2 -fstack-clash-protection -Wformat -Werror=format-security -g -fno-omit-frame-pointer -fno-strict-aliasing -fPIC
XCFLAGS = -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fstack-protector-strong -fno-strict-overflow -fvisibility=hidden -fexcess-precision=standard -DRUBY_EXPORT -I. -I.ext/include/s390x-linux-musl -I./include -I. -I./prism -I./enc/unicode/15.0.0
CPPFLAGS = -fno-omit-frame-pointer -fno-strict-aliasing
DLDFLAGS = -Wl,--as-needed,-O1,--sort-common -Wl,--compress-debug-sections=zlib -Wl,-soname,libruby.so.3.3 -fstack-protector-strong
SOLIBS = -lz -lrt -lrt -lgmp -ldl -lcrypt -lm -lpthread -lucontext
LANG =
LC_ALL =
LC_CTYPE =
MFLAGS = -j8 --jobserver-auth=fifo:/tmp/GMfifo7323
RUSTC = no
YJIT_RUSTC_ARGS = --crate-name=yjit --crate-type=staticlib --edition=2021 -g -C lto=thin -C opt-level=3 -C overflow-checks=on '--out-dir=/builds/alpine/aports/main/ruby/src/ruby-3.3.0/yjit/target/release/' ./yjit/src/lib.rs
```
```
2023-12-26 20:45:17 +0000
Driver is ruby 3.3.0 (2023-12-25 revision 5124f9ac75) [s390x-linux-musl]
Target is ruby 3.3.0 (2023-12-25 revision 5124f9ac75) [s390x-linux-musl]
..............................................................................
..............................................................................
..............................................................................
..............................................................................
................................................................EA core file is found. Saving it at: "/tmp/bootstraptest-core.2023-12-26T20:45:18Z"
["gdb", "/builds/alpine/aports/main/ruby/src/ruby-3.3.0/ruby -I/builds/alpine/aports/main/ruby/src/ruby-3.3.0/lib --disable-gems", "-c", "/tmp/bootstraptest-core.2023-12-26T20:45:18Z", "-ex", "bt", "-batch"]
...EA core file is found. Saving it at: "/tmp/bootstraptest-core.2023-12-26T20:45:19Z"
["gdb", "/builds/alpine/aports/main/ruby/src/ruby-3.3.0/ruby -I/builds/alpine/aports/main/ruby/src/ruby-3.3.0/lib --disable-gems", "-c", "/tmp/bootstraptest-core.2023-12-26T20:45:19Z", "-ex", "bt", "-batch"]
.....Fstderr output is not empty
[BUG] Segmentation fault at 0x000007fece67a000
ruby 3.3.0 (2023-12-25 revision 5124f9ac75) [s390x-linux-musl]
-- Control frame information -----------------------------------------------
c:0001 p:---- s:0003 e:000002 DUMMY [FINISH]
-- Threading information ---------------------------------------------------
Total ractor count: 2
Ruby thread count for this ractor: 1
-- Other runtime information -----------------------------------------------
* Loaded script: bootstraptest.test_ractor.rb_244_1238.rb
* Loaded features:
0 enumerator.so
1 thread.rb
2 fiber.so
3 rational.so
4 complex.so
5 ruby2_keywords.rb
6 /builds/alpine/aports/main/ruby/src/ruby-3.3.0/.ext/s390x-linux-musl/enc/encdb.so
7 /builds/alpine/aports/main/ruby/src/ruby-3.3.0/.ext/s390x-linux-musl/enc/trans/transdb.so
* Process memory map:
2aa25e00000-2aa25e01000 r-xp 00000000 fe:00 2520910 /builds/alpine/aports/main/ruby/src/ruby-3.3.0/ruby
2aa25e01000-2aa25e02000 r--p 00000000 fe:00 2520910 /builds/alpine/aports/main/ruby/src/ruby-3.3.0/ruby
2aa25e02000-2aa25e03000 rw-p 00001000 fe:00 2520910 /builds/alpine/aports/main/ruby/src/ruby-3.3.0/ruby
2aa2765d000-2aa2765e000 ---p 00000000 00:00 0 [heap]
2aa2765e000-2aa27664000 rw-p 00000000 00:00 0 [heap]
3ff572a8000-3ff572aa000 ---p 00000000 00:00 0
3ff572aa000-3ff572d0000 rw-p 00000000 00:00 0
3ff572d0000-3ff572d2000 ---p 00000000 00:00 0
3ff572d2000-3ff573f9000 rw-p 00000000 00:00 0
3ff573f9000-3ff573fa000 ---p 00000000 00:00 0
3ff573fa000-3ff5751a000 rw-p 00000000 00:00 0
3ff5751a000-3ff5751b000 ---p 00000000 00:00 0
3ff5751b000-3ff77300000 rw-p 00000000 00:00 0
3ff77300000-3ff77302000 r-xp 00000000 fe:00 2520334 /builds/alpine/aports/main/ruby/src/ruby-3.3.0/.ext/s390x-linux-musl/enc/trans/transdb.so
3ff77302000-3ff77303000 r--p 00002000 fe:00 2520334 /builds/alpine/aports/main/ruby/src/ruby-3.3.0/.ext/s390x-linux-musl/enc/trans/transdb.so
3ff77303000-3ff77304000 rw-p 00003000 fe:00 2520334 /builds/alpine/aports/main/ruby/src/ruby-3.3.0/.ext/s390x-linux-musl/enc/trans/transdb.so
3ff77307000-3ff77309000 rw-p 00000000 00:00 0
3ff7730b000-3ff7730e000 rw-p 00000000 00:00 0
3ff77310000-3ff77330000 rw-p 00000000 00:00 0
3ff77332000-3ff77337000 rw-p 00000000 00:00 0
3ff77339000-3ff7733a000 rw-p 00000000 00:00 0
3ff7733b000-3ff7733e000 rw-p 00000000 00:00 0
3ff77340000-3ff77380000 rw-p 00000000 00:00 0
3ff77380000-3ff77382000 r-xp 00000000 fe:00 2520245 /builds/alpine/aports/main/ruby/src/ruby-3.3.0/.ext/s390x-linux-musl/enc/encdb.so
3ff77382000-3ff77383000 r--p 00001000 fe:00 2520245 /builds/alpine/aports/main/ruby/src/ruby-3.3.0/.ext/s390x-linux-musl/enc/encdb.so
3ff77383000-3ff77384000 rw-p 00002000 fe:00 2520245 /builds/alpine/aports/main/ruby/src/ruby-3.3.0/.ext/s390x-linux-musl/enc/encdb.so
3ff77384000-3ff7739c000 rw-p 00000000 00:00 0
3ff7739c000-3ff7739d000 ---p 00000000 00:00 0
3ff7739d000-3ff773de000 rw-p 00000000 00:00 0
3ff773de000-3ff773df000 ---p 00000000 00:00 0
3ff773df000-3ff77420000 rw-p 00000000 00:00 0
3ff77420000-3ff77421000 ---p 00000000 00:00 0
3ff77421000-3ff77462000 rw-p 00000000 00:00 0
3ff77462000-3ff77463000 ---p 00000000 00:00 0
3ff77463000-3ff774a4000 rw-p 00000000 00:00 0
3ff774a4000-3ff774a5000 ---p 00000000 00:00 0
3ff774a5000-3ff774e6000 rw-p 00000000 00:00 0
3ff774e6000-3ff774e7000 ---p 00000000 00:00 0
3ff774e7000-3ff77528000 rw-p 00000000 00:00 0
3ff77528000-3ff77529000 ---p 00000000 00:00 0
3ff77529000-3ff7756a000 rw-p 00000000 00:00 0
3ff7756a000-3ff7756b000 ---p 00000000 00:00 0
3ff7756b000-3ff775ac000 rw-p 00000000 00:00 0
3ff775ac000-3ff775ad000 ---p 00000000 00:00 0
3ff775ad000-3ff775ee000 rw-p 00000000 00:00 0
3ff775ee000-3ff775ef000 ---p 00000000 00:00 0
3ff775ef000-3ff77630000 rw-p 00000000 00:00 0
3ff77630000-3ff77631000 ---p 00000000 00:00 0
3ff77631000-3ff77672000 rw-p 00000000 00:00 0
3ff77672000-3ff77673000 ---p 00000000 00:00 0
3ff77673000-3ff776b4000 rw-p 00000000 00:00 0
3ff776b4000-3ff776b5000 ---p 00000000 00:00 0
3ff776b5000-3ff776f6000 rw-p 00000000 00:00 0
3ff776f6000-3ff776f7000 ---p 00000000 00:00 0
3ff776f7000-3ff77738000 rw-p 00000000 00:00 0
3ff77738000-3ff77739000 ---p 00000000 00:00 0
3ff77739000-3ff7777a000 rw-p 00000000 00:00 0
3ff7777a000-3ff7777b000 ---p 00000000 00:00 0
3ff7777b000-3ff777bc000 rw-p 00000000 00:00 0
3ff777bc000-3ff777bd000 ---p 00000000 00:00 0
3ff777bd000-3ff777fe000 rw-p 00000000 00:00 0
3ff777fe000-3ff777ff000 ---p 00000000 00:00 0
3ff777ff000-3ff77840000 rw-p 00000000 00:00 0
3ff77840000-3ff77841000 ---p 00000000 00:00 0
3ff77841000-3ff77882000 rw-p 00000000 00:00 0
3ff77882000-3ff77883000 ---p 00000000 00:00 0
3ff77883000-3ff778c4000 rw-p 00000000 00:00 0
3ff778c4000-3ff778c5000 ---p 00000000 00:00 0
3ff778c5000-3ff77906000 rw-p 00000000 00:00 0
3ff77906000-3ff77907000 ---p 00000000 00:00 0
3ff77907000-3ff77948000 rw-p 00000000 00:00 0
3ff77948000-3ff77949000 ---p 00000000 00:00 0
3ff77949000-3ff7798a000 rw-p 00000000 00:00 0
3ff7798a000-3ff7798b000 ---p 00000000 00:00 0
3ff7798b000-3ff779cc000 rw-p 00000000 00:00 0
3ff779cc000-3ff779cd000 ---p 00000000 00:00 0
3ff779cd000-3ff77a0e000 rw-p 00000000 00:00 0
3ff77a0e000-3ff77a0f000 ---p 00000000 00:00 0
3ff77a0f000-3ff77a50000 rw-p 00000000 00:00 0
3ff77a50000-3ff77a51000 ---p 00000000 00:00 0
3ff77a51000-3ff77a92000 rw-p 00000000 00:00 0
3ff77a92000-3ff77a93000 ---p 00000000 00:00 0
3ff77a93000-3ff77ad4000 rw-p 00000000 00:00 0
3ff77ad4000-3ff77ad5000 ---p 00000000 00:00 0
3ff77ad5000-3ff77b16000 rw-p 00000000 00:00 0
3ff77b16000-3ff77b17000 ---p 00000000 00:00 0
3ff77b17000-3ff77b58000 rw-p 00000000 00:00 0
3ff77b58000-3ff77b59000 ---p 00000000 00:00 0
3ff77b59000-3ff77b9a000 rw-p 00000000 00:00 0
3ff77b9a000-3ff77b9b000 ---p 00000000 00:00 0
3ff77b9b000-3ff77bdc000 rw-p 00000000 00:00 0
3ff77bdc000-3ff77bde000 ---p 00000000 00:00 0
3ff77bde000-3ff91100000 rw-p 00000000 00:00 0
3ff91100000-3ff91101000 r-xp 00000000 fe:00 2758431 /lib/libucontext.so.1
3ff91101000-3ff91102000 r--p 00000000 fe:00 2758431 /lib/libucontext.so.1
3ff91102000-3ff91103000 rw-p 00001000 fe:00 2758431 /lib/libucontext.so.1
3ff91103000-3ff9114b000 rw-p 00000000 00:00 0
3ff9114f000-3ff91153000 rw-p 00000000 00:00 0
3ff91155000-3ff91180000 rw-p 00000000 00:00 0
3ff91180000-3ff911fd000 r-xp 00000000 fe:00 2755903 /usr/lib/libgmp.so.10.5.0
3ff911fd000-3ff911ff000 r--p 0007c000 fe:00 2755903 /usr/lib/libgmp.so.10.5.0
3ff911ff000-3ff91200000 rw-p 0007e000 fe:00 2755903 /usr/lib/libgmp.so.10.5.0
3ff91200000-3ff91219000 r-xp 00000000 fe:00 2754145 /lib/libz.so.1.3
3ff91219000-3ff9121a000 r--p 00018000 fe:00 2754145 /lib/libz.so.1.3
3ff9121a000-3ff9121b000 rw-p 00019000 fe:00 2754145 /lib/libz.so.1.3
3ff9121b000-3ff91280000 rw-p 00000000 00:00 0
3ff91280000-3ff91700000 r-xp 00000000 fe:00 2519847 /builds/alpine/aports/main/ruby/src/ruby-3.3.0/libruby.so.3.3.0
3ff91700000-3ff9170c000 r--p 00480000 fe:00 2519847 /builds/alpine/aports/main/ruby/src/ruby-3.3.0/libruby.so.3.3.0
3ff9170c000-3ff9170d000 rw-p 0048c000 fe:00 2519847 /builds/alpine/aports/main/ruby/src/ruby-3.3.0/libruby.so.3.3.0
3ff9170d000-3ff9171f000 rw-p 00000000 00:00 0
3ff9171f000-3ff91780000 rw-p 00000000 00:00 0
3ff91780000-3ff91830000 r-xp 00000000 fe:00 2758095 /lib/ld-musl-s390x.so.1
3ff91830000-3ff91831000 r--p 000b0000 fe:00 2758095 /lib/ld-musl-s390x.so.1
3ff91831000-3ff91832000 rw-p 000b1000 fe:00 2758095 /lib/ld-musl-s390x.so.1
3ff91832000-3ff91835000 rw-p 00000000 00:00 0
3ff91835000-3ff9187c000 rw-p 00000000 00:00 0
3ff9187c000-3ff9187e000 r--p 00000000 00:00 0 [vvar]
3ff9187e000-3ff91880000 r-xp 00000000 00:00 0 [vdso]
3ffe2381000-3ffe2b80000 rw-p 00000000 00:00 0 [stack]
```
…and many more tests fail like this.
Build script: [APKBUILD](https://gitlab.alpinelinux.org/alpine/aports/-/blob/8dbcda97e3e558a5a1cded3586a198f9d16b633e/main/ruby/APKBUILD#L134)
**Environment:**
- Alpine Linux Edge
- gcc 13.2.1_git20231014 (with many [downstream patches](https://gitlab.alpinelinux.org/alpine/aports/-/tree/master/main/gcc))