Issue #8860 has been updated by hsbt (Hiroshi SHIBATA).

Status changed from Open to Feedback

Could you try latest version of Ruby 1.9.3?
----------------------------------------
Bug #8860: 64-bit x86 ruby 1.9.3-p448 on Solaris core dumps on bug4950 test case
https://bugs.ruby-lang.org/issues/8860#change-43443

Author: apchin (April Chin)
Status: Feedback
Priority: Normal
Assignee: 
Category: 
Target version: 
ruby -v: ruby 1.9.3p448 (2013-06-27 revision 41675) [i386-solaris2.12]
Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN


64-bit ruby 1.9.3-p448 on x86 in Solaris, compiled with the Studio 12.1 compiler,
core dumps against the test case for bug 4950 in bootstraptest/test_fork.rb.
This problem sounds similar to issue 6334, which was rejected due
to lack of information.
The core dump does not occur with 64-bit ruby 1.9.3 on sparc.

configure options used:
--prefix=/usr/ruby/1.9 --mandir=/usr/ruby/1.9/share/man --bindir=/usr/ruby/1.9/bin --libdir=/usr/ruby/1.9/lib --sbindir=/usr/ruby/1.9/sbin  --enable-shared --enable-rpath --enable-install-doc --disable-option-checking --with-openssl 

CFLAGS="-m64 -xO2 -xchip=generic -Ui386 -U__i386 -D__amd64 -xregs=no%frameptr    -mt -DFFI_NO_RAW_API"


$ cat bug4950
a = []
trap(:INT) { a.push(1) }
trap(:TERM) { a.push(2) }

pid = $$
fork do
sleep 0.5
 puts "send start"
 Process.kill(:INT, pid)
 Process.kill(:TERM, pid)
 puts "send end"
end

puts "sleep start"
sleep 3
puts "sleep end"
p a

$ ruby bug4950
sleep start
send start
send end
Memory fault(coredump)
$ pstack core
core 'core' of 24964:   ruby bug4950
------------  lwp# 1 / thread# 1  ---------------
 ffff80ffbf5a6797 __lwp_park () + 17
 ffff80ffbf5a0062 cond_wait_queue () + 62
 ffff80ffbf5a04a0 cond_wait_common () + 1dc
 ffff80ffbf5a06e5 __cond_timedwait () + 5d
 ffff80ffbf5a0779 cond_timedwait () + 29
 ffff80ffbf5a07ad pthread_cond_timedwait () + 9
 ffff80ffb8799564 native_cond_timedwait () + 24
 ffff80ffb8799b5c native_sleep () + d8
 ffff80ffb879b26d sleep_timeval () + 7d
 ffff80ffb879b3ff rb_thread_wait_for () + 27
 ffff80ffb8712162 rb_f_sleep () + 4a
 ffff80ffb8789eb4 vm_call_cfunc () + c0
 ffff80ffb878a562 vm_call_method () + 2ae
 ffff80ffb878d57b vm_exec_core () + 1403
 ffff80ffb8796e7b vm_exec () + 5c7
 ffff80ffb8796f93 rb_iseq_eval_main () + 2b
 ffff80ffb86b3917 ruby_exec_internal () + 87
 ffff80ffb86b39f6 ruby_exec_node () + 1e
 ffff80ffb86b39bc ruby_run_node () + 24
 0000000000400ec8 main () + 4c
 0000000000400d1c ???????? ()
------------  lwp# 3 / thread# 3  ---------------
 ffff80ffbf7b189f lookup_sym () + 3b
 ffff80ffbf7cb9db elf_bndr () + 11b
 ffff80ffbf7ad073 elf_rtbndr () + 83
 ffff80ffbf7ee030 ???????? ()
 ffff80ffbf5a6876 __sighndlr () + 6
 ffff80ffbf599bba call_user_handler () + 2ce
 ffff80ffbf59a063 sigacthandler (f, ffff80ffbf76b6c8, ffff80ffbf76b360) + db
 --- called from signal handler with signal 15 (SIGTERM) ---
 ffff80ffbf5b026b _syscall6 () + 1b
 ffff80ffbf599b01 call_user_handler () + 215
 ffff80ffbf59a063 sigacthandler (2, ffff80ffbf76bc98, ffff80ffbf76b930) + db
 --- called from signal handler with signal 2 (SIGINT) ---
 ffff80ffbf5af64a __pollsys () + a
 ffff80ffbf4fc6c5 pselect () + 181
 ffff80ffbf4fcb44 select () + 68
 ffff80ffb8799f57 thread_timer () + b3
 ffff80ffbf5a64a5 _thrp_setup () + a5
 ffff80ffbf5a6750 _lwp_start ()





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