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Bug #18049

Updated by nobu (Nobuyoshi Nakada) 3 months ago

I get random segfaults when attempting to build on NetBSD 

 ```sh 
 uname -a 
 NetBSD juggler.panix.com 9.1 NetBSD 9.1 (PANIX-STD) #2: Thu Mar 18 17:46:23 EDT 2021    root@juggler.panix.com:/misc/obj64/misc/devel/netbsd/9.1/src/sys/arch/amd64/compile/PANIX-STD amd64 

 Configuration summary for ruby version 3.0.2 

    * Installation prefix: /usr/local 
    * exec prefix:           ${prefix} 
    * arch:                  x86_64-netbsd9.1 
    * 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:             netbsd9.1 
    * compiler:              gcc 
    * with pthread:          yes 
    * with coroutine:        ucontext 
    * enable shared libs:    yes 
    * dynamic library ext: so 
    * CFLAGS:                ${optflags} ${debugflags} ${warnflags} 
    * LDFLAGS:               -L. -fstack-protector-strong -Wl,-export-dynamic 
    * DLDFLAGS:              -Wl,--compress-debug-sections=zlib 
    * optflags:              -O3 
    * debugflags:            -ggdb3 
    * warnflags:             -Wall -Wextra -Wdeprecated-declarations\ 
                           -Wduplicated-cond -Wimplicit-function-declaration\ 
                           -Wimplicit-int -Wmisleading-indentation\ 
                           -Wpointer-arith -Wwrite-strings\ 
                           -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 
    * strip command:         strip -S -x 
    * install doc:           no 
    * JIT support:           yes 
    * man page type:         man 
    * BASERUBY -v:           ruby 3.0.1p64 (2021-04-05 revision 0fb782ee38)\ 
                           [x86_64-netbsd9.1] 


         BASERUBY = /usr/local/bin/ruby --disable=gems 
         CC = gcc 
         LD = ld 
         LDSHARED = gcc -shared 
         CFLAGS = -O3 -ggdb3 -Wall -Wextra -Wdeprecated-declarations -Wduplicated-cond -Wimplicit-function-declaration -Wimplicit-int -Wmisleading-indentation -Wpointer-arith -Wwrite-strings -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 -std=gnu99    -fPIC -pipe 
         XCFLAGS = -D_FORTIFY_SOURCE=2 -fstack-protector-strong -fno-strict-overflow -fvisibility=hidden -fexcess-precision=standard -DRUBY_EXPORT -I. -I.ext/include/x86_64-netbsd9.1 -I./include -I. -I./enc/unicode/12.1.0 
         CPPFLAGS = 
         DLDFLAGS = -Wl,--compress-debug-sections=zlib -Wl,-soname,liblibruby30.so.30    -fstack-protector-strong 
         SOLIBS = -lexecinfo -lz -lpthread -lrt -lrt -lcrypt -lm 
         LANG = en_US.UTF-8 
         LC_ALL = 
         LC_CTYPE = 
         MFLAGS = 
 gcc (nb4 20200810) 7.5.0 
 ``` 

 This particular time, it segfaulted here: 

 ```sh 
 making prelude.rbinc 
 /usr/local/lib/ruby/3.0.0/ripper/lexer.rb:70: [BUG] Segmentation fault 
 ruby 3.0.1p64 (2021-04-05 revision 0fb782ee38) [x86_64-netbsd9.1] 

 -- Control frame information ----------------------------------------------- 
 c:0009 p:---- s:0037 e:000036 CFUNC    :new 
 c:0008 p:0043 s:0028 e:000027 CLASS    /usr/local/lib/ruby/3.0.0/ripper/lexer.rb:70 
 c:0007 p:0042 s:0025 e:000024 CLASS    /usr/local/lib/ruby/3.0.0/ripper/lexer.rb:55 
 c:0006 p:0013 s:0022 e:000021 TOP      /usr/local/lib/ruby/3.0.0/ripper/lexer.rb:14 [FINISH] 
 c:0005 p:---- s:0019 e:000018 CFUNC    :require 
 c:0004 p:0011 s:0014 e:000013 TOP      /usr/local/lib/ruby/3.0.0/ripper.rb:3 [FINISH] 
 c:0003 p:---- s:0011 e:000010 CFUNC    :require 
 c:0002 p:0005 s:0006 e:000005 EVAL     ./tool/mk_builtin_loader.rb:3 [FINISH] 
 c:0001 p:0000 s:0003 E:001d70 (none) [FINISH] 

 -- Ruby level backtrace information ---------------------------------------- 
 ./tool/mk_builtin_loader.rb:3:in `<main>' 
 ./tool/mk_builtin_loader.rb:3:in `require' 
 /usr/local/lib/ruby/3.0.0/ripper.rb:3:in `<top (required)>' 
 /usr/local/lib/ruby/3.0.0/ripper.rb:3:in `require' 
 /usr/local/lib/ruby/3.0.0/ripper/lexer.rb:14:in `<top (required)>' 
 /usr/local/lib/ruby/3.0.0/ripper/lexer.rb:55:in `<class:Ripper>' 
 /usr/local/lib/ruby/3.0.0/ripper/lexer.rb:70:in `<class:Lexer>' 
 /usr/local/lib/ruby/3.0.0/ripper/lexer.rb:70:in `new' 

 -- C level backtrace information ------------------------------------------- 
 /usr/local/lib/libruby.so.30(rb_profile_frame_full_label+0x19) [0x79baa3ee2399] 
 /usr/local/lib/libruby.so.30(rb_profile_frame_full_label+0x8e) [0x79baa3ee243e] 
 /usr/local/lib/libruby.so.30(rb_bug+0x124) [0x79baa3cc3211] 
 /usr/local/lib/libruby.so.30(ruby_posix_signal+0x0) [0x79baa3e2eb49] 
 /usr/lib/libc.so.12(__sigtramp_siginfo_2+0x0) [0x79baa1aa1d50] 

 -- Other runtime information ----------------------------------------------- 

 * Loaded script: ./tool/mk_builtin_loader.rb 

 * Loaded features: 

     0 enumerator.so 
     1 thread.rb 
     2 rational.so 
     3 complex.so 
     4 ruby2_keywords.rb 
     5 /usr/local/lib/ruby/3.0.0/x86_64-netbsd9.1/enc/encdb.so 
     6 /usr/local/lib/ruby/3.0.0/x86_64-netbsd9.1/enc/trans/transdb.so 
     7 /usr/local/lib/ruby/3.0.0/x86_64-netbsd9.1/ripper.so 
     8 /usr/local/lib/ruby/3.0.0/ripper/core.rb 

 gmake: *** [Makefile:1833: prelude.rbinc] Abort trap (core dumped) 
 ``` 

 Other times it will segfault in other places.    It seems pretty random.

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