# SEGV by test/ruby/test\_io\_m17n.rb

**URL:** <https://www.ruby-forum.com/t/segv-by-test-ruby-test-io-m17n-rb/126658>\
**Category:** Development\
**Created:** [January 21, 2008, 4:37am UTC](https://www.ruby-forum.com/t/segv-by-test-ruby-test-io-m17n-rb/126658 "2008-01-21T04:37:32Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Tanaka\_A](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/c67d28/32.png) [@Tanaka\_A](https://www.ruby-forum.com/u/Tanaka_A)\
**Post date:** [January 21, 2008, 4:37am UTC](https://www.ruby-forum.com/t/segv-by-test-ruby-test-io-m17n-rb/126658/1 "2008-01-21T04:37:32Z")

</div>

test\_io\_m17n.rb e$B$Ge(B SEGV e$B$9$k$h$&$K$J$C$?$h$&$G$9!#e(B

% ./ruby test/runner.rb test/ruby/test\_io\_m17n.rb  
Loaded suite test\_io\_m17n.rb  
Started  
/tmp/a/ruby/test/ruby/test\_io\_m17n.rb:231: [BUG] Segmentation fault  
ruby 1.9.0 (2008-01-21 revision 0) [i686-linux]

## – control frame ---------- c:0031 p:---- s:0104 b:0104 l:000103 d:000103 CFUNC :encode c:0030 p:---- s:0102 b:0102 l:000101 d:000101 CFUNC :getc c:0029 p:0020 s:0099 b:0097 l:000067 d:000096 BLOCK /tmp/a/ruby/test/ruby/test\_io\_m17n.rb:231 c:0028 p:---- s:0097 b:0097 l:000096 d:000096 FINISH :initialize c:0027 p:---- s:0095 b:0095 l:000094 d:000094 CFUNC :open c:0026 p:0037 s:0090 b:0090 l:000067 d:000089 BLOCK /tmp/a/ruby/test/ruby/test\_io\_m17n.rb:230 c:0025 p:0006 s:0088 b:0088 l:000070 d:000087 BLOCK /tmp/a/ruby/test/ruby/test\_io\_m17n.rb:16 c:0024 p:---- s:0089 b:0089 l:000088 d:000088 FINISH :call c:0023 p:---- s:0087 b:0087 l:000086 d:000086 CFUNC :chdir c:0022 p:0016 s:0083 b:0083 l:000070 d:000082 BLOCK /tmp/a/ruby/test/ruby/test\_io\_m17n.rb:15 c:0021 p:0270 s:0081 b:0081 l:000080 d:000080 METHOD /tmp/a/lib/ruby/1.9.0/tmpdir.rb:122 c:0020 p:0013 s:0071 b:0071 l:000070 d:000070 METHOD /tmp/a/ruby/test/ruby/test\_io\_m17n.rb:14 c:0019 p:0007 s:0068 b:0068 l:000067 d:000067 METHOD /tmp/a/ruby/test/ruby/test\_io\_m17n.rb:227 c:0018 p:0039 s:0065 b:0065 l:000064 d:000064 METHOD /tmp/a/lib/ruby/1.9.0/test/unit/testcase.rb:76 c:0017 p:0015 s:0060 b:0060 l:000054 d:000059 BLOCK /tmp/a/lib/ruby/1.9.0/test/unit/testsuite.rb:34 c:0016 p:---- s:0060 b:0060 l:000059 d:000059 FINISH :inherited c:0015 p:---- s:0058 b:0058 l:000057 d:000057 CFUNC :each c:0014 p:0026 s:0055 b:0055 l:000054 d:000054 METHOD /tmp/a/lib/ruby/1.9.0/test/unit/testsuite.rb:33 c:0013 p:0015 s:0050 b:0050 l:000044 d:000049 BLOCK /tmp/a/lib/ruby/1.9.0/test/unit/testsuite.rb:34 c:0012 p:---- s:0050 b:0050 l:000049 d:000049 FINISH :% c:0011 p:---- s:0048 b:0048 l:000047 d:000047 CFUNC :each c:0010 p:0026 s:0045 b:0045 l:000044 d:000044 METHOD /tmp/a/lib/ruby/1.9.0/test/unit/testsuite.rb:33 c:0009 p:0128 s:0040 b:0040 l:001b04 d:001b04 METHOD /tmp/a/lib/ruby/1.9.0/test/unit/ui/testrunnermediator.rb:46 c:0008 p:0008 s:0031 b:0031 l:000030 d:000030 METHOD /tmp/a/lib/ruby/1.9.0/test/unit/ui/console/testrunner.rb:67 c:0007 p:0023 s:0028 b:0028 l:000027 d:000027 METHOD /tmp/a/lib/ruby/1.9.0/test/unit/ui/console/testrunner.rb:41 c:0006 p:0026 s:0025 b:0025 l:000024 d:000024 METHOD /tmp/a/lib/ruby/1.9.0/test/unit/ui/testrunnerutilities.rb:29 c:0005 p:0051 s:0020 b:0020 l:000019 d:000019 METHOD /tmp/a/lib/ruby/1.9.0/test/unit/autorunner.rb:216 c:0004 p:0070 s:0016 b:0016 l:000015 d:000015 METHOD /tmp/a/lib/ruby/1.9.0/test/unit/autorunner.rb:12 c:0003 p:0139 s:0008 b:0007 l:000006 d:000006 TOP test/runner.rb:9 c:0002 p:---- s:0004 b:0004 l:000003 d:000003 FINISH :inherited c:0001 p:0000 s:0002 b:0002 l:000001 d:000001 TOP :17

DBG\> : “/tmp/a/ruby/test/ruby/test\_io\_m17n.rb:231:in `getc'" DBG> : "/tmp/a/ruby/test/ruby/test_io_m17n.rb:231:in`block (2 levels)  
in test\_getc\_stateful\_conversion’”  
DBG\> : “/tmp/a/ruby/test/ruby/test\_io\_m17n.rb:230:in `open'" DBG> : "/tmp/a/ruby/test/ruby/test_io_m17n.rb:230:in`block in  
test\_getc\_stateful\_conversion’”  
DBG\> : “/tmp/a/ruby/test/ruby/test\_io\_m17n.rb:16:in `block (2 levels) in with_tmpdir'" DBG> : "/tmp/a/ruby/test/ruby/test_io_m17n.rb:15:in`chdir’”  
DBG\> : “/tmp/a/ruby/test/ruby/test\_io\_m17n.rb:15:in `block in with_tmpdir'" DBG> : "/tmp/a/lib/ruby/1.9.0/tmpdir.rb:122:in`mktmpdir’”  
DBG\> : “/tmp/a/ruby/test/ruby/test\_io\_m17n.rb:14:in `with_tmpdir'" DBG> : "/tmp/a/ruby/test/ruby/test_io_m17n.rb:227:in`test\_getc\_stateful\_conversion’”  
DBG\> : “/tmp/a/lib/ruby/1.9.0/test/unit/testcase.rb:76:in `run'" DBG> : "/tmp/a/lib/ruby/1.9.0/test/unit/testsuite.rb:34:in`block in  
run’”  
DBG\> : “/tmp/a/lib/ruby/1.9.0/test/unit/testsuite.rb:33:in `each'" DBG> : "/tmp/a/lib/ruby/1.9.0/test/unit/testsuite.rb:33:in`run’”  
DBG\> : “/tmp/a/lib/ruby/1.9.0/test/unit/testsuite.rb:34:in `block in run'" DBG> : "/tmp/a/lib/ruby/1.9.0/test/unit/testsuite.rb:33:in`each’”  
DBG\> : “/tmp/a/lib/ruby/1.9.0/test/unit/testsuite.rb:33:in `run'" DBG> : "/tmp/a/lib/ruby/1.9.0/test/unit/ui/testrunnermediator.rb:46:in`run\_suite’”  
DBG\> : “/tmp/a/lib/ruby/1.9.0/test/unit/ui/console/testrunner.rb:67:in  
`start_mediator'" DBG> : "/tmp/a/lib/ruby/1.9.0/test/unit/ui/console/testrunner.rb:41:in`start’”  
DBG\> : “/tmp/a/lib/ruby/1.9.0/test/unit/ui/testrunnerutilities.rb:29:in  
`run'" DBG> : "/tmp/a/lib/ruby/1.9.0/test/unit/autorunner.rb:216:in`run’”  
DBG\> : “/tmp/a/lib/ruby/1.9.0/test/unit/autorunner.rb:12:in `run'" DBG> : "test/runner.rb:9:in`'”  
– backtrace of native function call (Use addr2line) –  
0x80f07c5  
0x810f6de  
0x810f73b  
0x80bfa20  
0xb7f89440  
0x80d96e3  
0x80d9cc3  
0x80e6c9e  
0x80ef6e5  
0x805b3b8  
0x805b6a0  
0x805ba06  
0x806ad2e  
0x80eefe3  
0x80ea90e  
0x80ee1d4  
0x80ee907  
0x805ae4e  
0x8059911  
0x806af38  
0x807217d  
0x80e6c9e  
0x80eefe3  
0x80ea90e  
0x80ee1d4  
0x80ee907  
0x805ae4e  
0x8059911  
0x8109b97  
0x80e6c9e  
0x80eefe3  
0x80ea90e  
0x80ee1d4  
0x80ee907  
0x805ae4e  
0x80fa00f  
0x8059911  
0x80fb145  
0x80eefe3  
0x80ea90e  
0x80ee1d4  
0x80ee907  
0x805ae4e  
0x80fa00f  
0x8059911  
0x80fb145  
0x80eefe3  
0x80ea90e  
0x80ee1d4  
0x80ee50d  
0x805a759  
0x805e850  
0x8058185  
0xb7deaea8  
0x8058081

---

<div class="post-metadata">

**Author:** ![Tanaka\_A](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/t/c67d28/32.png) [@Tanaka\_A](https://www.ruby-forum.com/u/Tanaka_A)\
**Post date:** [January 21, 2008, 10:32am UTC](https://www.ruby-forum.com/t/segv-by-test-ruby-test-io-m17n-rb/126658/2 "2008-01-21T10:32:19Z")

</div>

e$BEDCf$5$s!"$3$s$K$A$O!#e(B

e$B$3$l$Oe(B encode e$B$G$3$1$^$7$?$\_$?$$$N$G!"@UG$$r46$8$F$$$^$9$,!“e(B  
e$B$3$l$+$i2?$r$9$l$P$”$^$j$h$/J,$+$j$^$;$s$N$G65$($F$/$@$5$$!#e(B  
e$B$b$C$HC;$$e(B Ruby  
e$B$N%W%m%0%i%`$G%(%i!\<$,$G$l$P@'HsAw$C$F$/$@$5$$!#e(B

At 12:36 08/01/21, Tanaka A. wrote:

> test\_io\_m17n.rb e$B$Ge(B SEGV e$B$9$k$h$&$K$J$C$?$h$&$G$9!#e(B
> 
> % ./ruby test/runner.rb test/ruby/test\_io\_m17n.rb

e$B$3$A$i$G$3$l$r$d$m$&$H$7$?$i!"e(B  
test/runner.rb:3:in `require’: no such file to load – test/unit  
(LoadError)  
e$B$K$J$j$^$7$?!#e(B  
./ruby e$B$re(B (install e$B:Q$\_e(B) e$B$Ne(B ruby  
e$B$KJQ99$7$?$i!“e(BError e$B0l$D$He(B  
Failure e$B0l$D$,$G$F$-$^$7$?!#$3$l$O$=$A$i$Ne(B Segmentation fault  
e$B$H4X78$”$k$N$G$7$g$&$+!#e(B

e$B59$7$/$\*4j$$$7$^$9!#e(B Martin.

duerst@Tanzawa /cygdrive/d/ruby  
$ ruby test/runner.rb test/ruby/test\_io\_m17n.rb  
Loaded suite test\_io\_m17n.rb  
Started  
E…F…  
Finished in 1.125 seconds.

1. Error:  
test\_getc\_stateful\_conversion(TestIO\_M17N):  
RuntimeError: this mode is not supported (ESC  
/cygdrive/d/ruby/test/ruby/test\_io\_m17n.rb:231:in `encode' /cygdrive/d/ruby/test/ruby/test_io_m17n.rb:231:in `getc’  
/cygdrive/d/ruby/test/ruby/test\_io\_m17n.rb:231:in `block (2 levels) in test_getc_stateful_conversion' /cygdrive/d/ruby/test/ruby/test_io_m17n.rb:230:in `open’  
/cygdrive/d/ruby/test/ruby/test\_io\_m17n.rb:230:in `block in test_getc_stateful_conversion' /cygdrive/d/ruby/test/ruby/test_io_m17n.rb:16:in `block (2 levels)  
in with\_tmpdir’  
/cygdrive/d/ruby/test/ruby/test\_io\_m17n.rb:15:in `chdir' /cygdrive/d/ruby/test/ruby/test_io_m17n.rb:15:in `block in  
with\_tmpdir’  
/usr/local/lib/ruby/1.9.0/tmpdir.rb:122:in `mktmpdir' /cygdrive/d/ruby/test/ruby/test_io_m17n.rb:14:in `with\_tmpdir’  
/cygdrive/d/ruby/test/ruby/test\_io\_m17n.rb:227:in  
`test\_getc\_stateful\_conversion’

2. Failure:  
test\_terminator\_stateful\_conversion(TestIO\_M17N)  
[/cygdrive/d/ruby/test/ruby/test\_io\_m17n.rb:44:in `assert_str_equal' /cygdrive/d/ruby/test/ruby/test_io_m17n.rb:177:in `block in  
test\_terminator\_stateful\_conversion’  
/cygdrive/d/ruby/test/ruby/test\_io\_m17n.rb:16:in `block (2 levels) in with_tmpdir' /cygdrive/d/ruby/test/ruby/test_io_m17n.rb:15:in `chdir’  
/cygdrive/d/ruby/test/ruby/test\_io\_m17n.rb:15:in `block in with_tmpdir' /usr/local/lib/ruby/1.9.0/tmpdir.rb:122:in `mktmpdir’  
/cygdrive/d/ruby/test/ruby/test\_io\_m17n.rb:14:in `with_tmpdir' /cygdrive/d/ruby/test/ruby/test_io_m17n.rb:170:in `test\_terminator\_stateful\_conversion’]:  
“before \xA3\xB0\xA3\xB1 after”.force\_encoding(“EUC-JP”) expected but  
not equal to  
“before \xA3\xB0”.force\_encoding(“EUC-JP”).

25 tests, 157 assertions, 1 failures, 1 errors

duerst@Tanzawa /cygdrive/d/ruby  
$

> ## c:0028 p:---- s:0097 b:0097 l:000096 d:000096 FINISH :initialize /tmp/a/lib/ruby/1.9.0/tmpdir.rb:122 c:0014 p:0026 s:0055 b:0055 l:000054 d:000054 METHOD /tmp/a/lib/ruby/1.9.0/test/unit/ui/console/testrunner.rb:67 c:0001 p:0000 s:0002 b:0002 l:000001 d:000001 TOP :17 DBG\> : “/tmp/a/ruby/test/ruby/test\_io\_m17n.rb:15:in `block in with_tmpdir'" DBG> : "/tmp/a/lib/ruby/1.9.0/test/unit/testsuite.rb:33:in `run’” 0x80f07c5 0x805ba06 0x80eefe3 0x80ee907 0x8059911
> 
> ## zsh: abort (core dumped) ./ruby test/runner.rb test/ruby/test\_io\_m17n.rb
> 
> [e$BEDCfe(B e$BE/e(B][e$B$?$J$+e(B e$B$"$-$ie(B][Tanaka A.]

#-#-# Martin J. Du"rst, Assoc. Professor, Aoyama Gakuin University  
#-#-# [http://www.sw.it.aoyama.ac.jp](http://www.sw.it.aoyama.ac.jp)[mailto:removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)