# Marshal.load $B$GNc30H/@8;~$K(B Segmentation fault $B%(%i!\<(B

**URL:** <https://www.ruby-forum.com/t/marshal-load-b-gnc30h-8-k-b-segmentation-fault-b-i-b/176599>\
**Category:** Development\
**Created:** [October 2, 2009, 8:29pm UTC](https://www.ruby-forum.com/t/marshal-load-b-gnc30h-8-k-b-segmentation-fault-b-i-b/176599 "2009-10-02T20:29:37Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\
**Post date:** [October 2, 2009, 8:29pm UTC](https://www.ruby-forum.com/t/marshal-load-b-gnc30h-8-k-b-segmentation-fault-b-i-b/176599/1 "2009-10-02T20:29:37Z")

</div>

e$B6bEDM-Fs$H?=$7$^$9!#e(B

e$B\<!$N%3!\<%I$Ge(B Segmentation fault e$B$,H/@8$7$^$7$?$N$Ge(B  
e$B$4Js9p$5$;$FD:$-$^$9!#e(B

* * *

## #! /usr/local/bin/ruby GC.stress = true loop do begin f = File.open(“d”) Marshal.load(f) rescue end end

# de$B$O6u$N%U%!%$%k$G$9!#e(B

e$B$6$C$H%=!\<%9$r$_$?$H$3$me(B marshal.c e$B$Ne(B 1480 e$B9TL$Ge(B  
r\_byte e$B4X?t$r8F$S=P$7$Fe(B  
864e$B9TL$Ge(B rb\_eof\_error  
e$B$GNc30$rH/@8$5$;$?$"$?$j$G%(%i!\<$H$J$C$F$$$k$h$&$G$9!#e(B  
e$B$$=$i$/!"e(B1478e$B9TL$G%9%?%C%/\>e$N:n@.$7$?e(B arg.wrapper  
e$B%%V%8%'%/%H$re(B  
GCe$B$,H/@8$7$?:]$KE,@Z$Ke(B mark e$B$G$-$J$+$C$?$h$&$K$_$($^$9!#e(B

Rubye$B$N%P!\<%8%g%s$Oe(Bx86\_64-linux  
e$B\>e$Ne(B1.8.7e$B$G%P%C%/%H%l!\<%9$O\<!$N$h$&$K$J$j$^$9!#e(B  
i686-linux e$B$G$OH/@8$7$J$$$h$&$G$9!#e(B

$ ruby marshal\_error.rb  
marshal\_error.rb:5: [BUG] Segmentation fault  
ruby 1.8.7 (2009-06-12 patchlevel 174) [x86\_64-linux]

e$B%"%!\<%H$7$^$7$?e(B (core dumped)  
$ gdb /usr/local/bin/ruby core.13316  
GNU gdb Fedora (6.8-27.el5)  
Copyright (C) 2008 Free Software Foundation, Inc.  
License GPLv3+: GNU GPL version 3 or later  
[http://gnu.org/licenses/gpl.html](http://gnu.org/licenses/gpl.html)  
This is free software: you are free to change and redistribute it.  
There is NO WARRANTY, to the extent permitted by law. Type “show  
copying”  
and “show warranty” for details.  
This GDB was configured as “x86\_64-redhat-linux-gnu”…  
Reading symbols from /lib64/librt.so.1…done.  
Loaded symbols for /lib64/librt.so.1  
Reading symbols from /lib64/libdl.so.2…done.  
Loaded symbols for /lib64/libdl.so.2  
Reading symbols from /lib64/libcrypt.so.1…done.  
Loaded symbols for /lib64/libcrypt.so.1  
Reading symbols from /lib64/libm.so.6…done.  
Loaded symbols for /lib64/libm.so.6  
Reading symbols from /lib64/libc.so.6…done.  
Loaded symbols for /lib64/libc.so.6  
Reading symbols from /lib64/libpthread.so.0…done.  
Loaded symbols for /lib64/libpthread.so.0  
Reading symbols from /lib64/ld-linux-x86-64.so.2…done.  
Loaded symbols for /lib64/ld-linux-x86-64.so.2  
Core was generated by `ruby marshal\_error.rb’.  
Program terminated with signal 6, Aborted.  
[New process 13316]  
#0 0x0000003131030215 in raise () from /lib64/libc.so.6  
(gdb) bt  
#0 0x0000003131030215 in raise () from /lib64/libc.so.6  
#1 0x0000003131031cc0 in abort () from /lib64/libc.so.6  
#2 0x0000000000499438 in rb\_bug (fmt=0x4b5acd “Segmentation fault”) at  
error.c:213  
#3 0x000000000047044a in sigsegv (sig=) at  
signal.c:634  
#4  
#5 0x0000000000472d1b in st\_foreach (table=0x2baa79483e70,  
func=0x42de60 \<mark\_entry\>, arg=  
0)  
at st.c:487  
#6 0x000000000042df31 in mark\_locations\_array (x=0x7fff31686de8,  
n=2008) at gc.c:684  
#7 0x000000000042e106 in garbage\_collect () at gc.c:1468  
#8 0x000000000042eba7 in rb\_newobj () at gc.c:436  
#9 0x0000000000474499 in str\_alloc (klass=7257920) at string.c:67  
#10 0x0000000000474599 in str\_new3 (klass=7257920, str=0) at  
string.c:143  
#11 0x00000000004745e6 in rb\_str\_new3 (str=48011179162360) at  
string.c:157  
#12 0x0000000000416501 in rb\_eval (self=48011179299480, n=0x0) at  
eval.c:3865  
#13 0x0000000000416e41 in rb\_eval (self=48011179299480, n=) at eval.c:3  
498  
#14 0x0000000000415f3c in rb\_eval (self=48011179299480, n=) at eval.c:3  
698  
#15 0x00000000004186bb in rb\_eval (self=48011179299480, n=) at eval.c:3  
319  
#16 0x000000000041a2d5 in rb\_yield\_0 (val=6, self=48011179299480,  
klass=0,  
flags=, avalue=0) at eval.c:5090  
#17 0x0000000000424fe7 in loop\_i () at eval.c:5222  
#18 0x0000000000410704 in rb\_rescue2 (b\_proc=0x424fd0 \<loop\_i\>, data1=0,  
r\_proc=0, data2=0)  
at eval.c:5486  
#19 0x00000000004108e0 in rb\_f\_loop () at eval.c:5247  
#20 0x000000000041b56a in rb\_call0 (klass=48011179309360,  
recv=48011179299480, id=4121, oid=  
4121,  
argc=0, argv=0x0, body=0x2baa79497b78, flags=)  
at eval.c:5917  
#21 0x000000000041c278 in rb\_call (klass=48011179309360,  
recv=48011179299480, mid=4121, argc  
=0,  
argv=0x0, scope=1, self=48011179299480) at eval.c:6164  
#22 0x0000000000416fec in rb\_eval (self=, n=)  
at eval.c:3518  
#23 0x0000000000418ff2 in rb\_eval (self=48011179299480, n=) at eval.c:3  
233  
#24 0x0000000000427b89 in ruby\_exec\_internal () at eval.c:1652  
#25 0x0000000000427bd5 in ruby\_exec () at eval.c:1672  
#26 0x0000000000427bff in ruby\_run () at eval.c:1682  
#27 0x000000000040ddc3 in main (argc=2, argv=0x7fff3168a048, envp=)  
at main.c:48

---

<div class="post-metadata">

**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\
**Post date:** [October 4, 2009, 1:30pm UTC](https://www.ruby-forum.com/t/marshal-load-b-gnc30h-8-k-b-segmentation-fault-b-i-b/176599/2 "2009-10-04T13:30:54Z")

</div>

In article [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid),  
removed\_email\_address@domain.invalid writes:

> * * *
> 
> # de$B$O6u$N%U%!%$%k$G$9!#e(B
> 
> e$B$6$C$H%=!\<%9$r$_$?$H$3$me(B marshal.c e$B$Ne(B 1480 e$B9TL$Ge(B r\_byte e$B4X?t$r8F$S=P$7$Fe(B  
> 864e$B9TL$Ge(B rb\_eof\_error e$B$GNc30$rH/@8$5$;$?$"$?$j$G%(%i!\<$H$J$C$F$$$k$h$&$G$9!#e(B  
> e$B$$=$i$/!"e(B1478e$B9TL$G%9%?%C%/\>e$N:n@.$7$?e(B arg.wrapper e$B%%V%8%'%/%H$re(B  
> GCe$B$,H/@8$7$?:]$KE,@Z$Ke(B mark e$B$G$-$J$+$C$?$h$&$K$_$($^$9!#e(B

e$B$3$l$bD\>$C$?$s$8$c$$$J$$$+$J$!!#e(B

---

<div class="post-metadata">

**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\
**Post date:** [October 3, 2009, 11:20am UTC](https://www.ruby-forum.com/t/marshal-load-b-gnc30h-8-k-b-segmentation-fault-b-i-b/176599/3 "2009-10-03T11:20:31Z")

</div>

Redminee$B$KG’\<1$5$;$k$?$a$K:FE\>Aw$7$^$9!#e(B  
e$B$3$&$7$J$$$H4{$KN.$l$?%a!\<%k$re(Bredminee$B$KEPO?$G$-$J$$LdBj$O;d$K2K$,$G$-$?$iD\>$7$^$9!#e(B

---------- e$BE\>Aw%a%C%;!\<%8e(B ----------  
From: [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)  
e$BF|IUe(B: 2009e$BG/e(B10e$B7ne(B3e$BF|e(B3:29  
e$B7oL\>e(B: [ruby-dev:39420] Marshal.load e$B$GNc30H/@8;~$Ke(B  
Segmentation fault e$B%(%i!\<e(B  
To: ruby developers list [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)

e$B6bEDM-Fs$H?=$7$^$9!#e(B

e$B\<!$N%3!\<%I$Ge(B Segmentation fault e$B$,H/@8$7$^$7$?$N$Ge(B  
e$B$4Js9p$5$;$FD:$-$^$9!#e(B

* * *

## #! /usr/local/bin/ruby GC.stress = true loop do begin f = File.open(“d”) Marshal.load(f) rescue end end

# de$B$O6u$N%U%!%$%k$G$9!#e(B

e$B$6$C$H%=!\<%9$r$_$?$H$3$me(B marshal.c e$B$Ne(B 1480 e$B9TL$Ge(B  
r\_byte e$B4X?t$r8F$S=P$7$Fe(B  
864e$B9TL$Ge(B rb\_eof\_error  
e$B$GNc30$rH/@8$5$;$?$"$?$j$G%(%i!\<$H$J$C$F$$$k$h$&$G$9!#e(B  
e$B$$=$i$/!"e(B1478e$B9TL$G%9%?%C%/\>e$N:n@.$7$?e(B arg.wrapper  
e$B%%V%8%'%/%H$re(B  
GCe$B$,H/@8$7$?:]$KE,@Z$Ke(B mark e$B$G$-$J$+$C$?$h$&$K$_$($^$9!#e(B

Rubye$B$N%P!\<%8%g%s$Oe(Bx86\_64-linux  
e$B\>e$Ne(B1.8.7e$B$G%P%C%/%H%l!\<%9$O\<!$N$h$&$K$J$j$^$9!#e(B  
i686-linux e$B$G$OH/@8$7$J$$$h$&$G$9!#e(B

$ ruby marshal\_error.rb  
marshal\_error.rb:5: [BUG] Segmentation fault  
ruby 1.8.7 (2009-06-12 patchlevel 174) [x86\_64-linux]

e$B%"%!\<%H$7$^$7$?e(B (core dumped)  
$ gdb /usr/local/bin/ruby core.13316  
GNU gdb Fedora (6.8-27.el5)  
Copyright (C) 2008 Free Software Foundation, Inc.  
License GPLv3+: GNU GPL version 3 or later  
[http://gnu.org/licenses/gpl.html](http://gnu.org/licenses/gpl.html)  
This is free software: you are free to change and redistribute it.  
There is NO WARRANTY, to the extent permitted by law. Type “show  
copying”  
and “show warranty” for details.  
This GDB was configured as “x86\_64-redhat-linux-gnu”…  
Reading symbols from /lib64/librt.so.1…done.  
Loaded symbols for /lib64/librt.so.1  
Reading symbols from /lib64/libdl.so.2…done.  
Loaded symbols for /lib64/libdl.so.2  
Reading symbols from /lib64/libcrypt.so.1…done.  
Loaded symbols for /lib64/libcrypt.so.1  
Reading symbols from /lib64/libm.so.6…done.  
Loaded symbols for /lib64/libm.so.6  
Reading symbols from /lib64/libc.so.6…done.  
Loaded symbols for /lib64/libc.so.6  
Reading symbols from /lib64/libpthread.so.0…done.  
Loaded symbols for /lib64/libpthread.so.0  
Reading symbols from /lib64/ld-linux-x86-64.so.2…done.  
Loaded symbols for /lib64/ld-linux-x86-64.so.2  
Core was generated by `ruby marshal\_error.rb’.  
Program terminated with signal 6, Aborted.  
[New process 13316]  
#0 0x0000003131030215 in raise () from /lib64/libc.so.6  
(gdb) bt  
#0 0x0000003131030215 in raise () from /lib64/libc.so.6  
#1 0x0000003131031cc0 in abort () from /lib64/libc.so.6  
#2 0x0000000000499438 in rb\_bug (fmt=0x4b5acd “Segmentation fault”)  
at error.c:213  
#3 0x000000000047044a in sigsegv (sig=) at  
signal.c:634  
#4  
#5 0x0000000000472d1b in st\_foreach (table=0x2baa79483e70,  
func=0x42de60 \<mark\_entry\>, arg=  
0)  
at st.c:487  
#6 0x000000000042df31 in mark\_locations\_array (x=0x7fff31686de8,  
n=2008) at gc.c:684  
#7 0x000000000042e106 in garbage\_collect () at gc.c:1468  
#8 0x000000000042eba7 in rb\_newobj () at gc.c:436  
#9 0x0000000000474499 in str\_alloc (klass=7257920) at string.c:67  
#10 0x0000000000474599 in str\_new3 (klass=7257920, str=0) at  
string.c:143  
#11 0x00000000004745e6 in rb\_str\_new3 (str=48011179162360) at  
string.c:157  
#12 0x0000000000416501 in rb\_eval (self=48011179299480, n=0x0) at  
eval.c:3865  
#13 0x0000000000416e41 in rb\_eval (self=48011179299480, n=) at eval.c:3  
498  
#14 0x0000000000415f3c in rb\_eval (self=48011179299480, n=) at eval.c:3  
698  
#15 0x00000000004186bb in rb\_eval (self=48011179299480, n=) at eval.c:3  
319  
#16 0x000000000041a2d5 in rb\_yield\_0 (val=6, self=48011179299480,  
klass=0,  
flags=, avalue=0) at eval.c:5090  
#17 0x0000000000424fe7 in loop\_i () at eval.c:5222  
#18 0x0000000000410704 in rb\_rescue2 (b\_proc=0x424fd0 \<loop\_i\>,  
data1=0, r\_proc=0, data2=0)  
at eval.c:5486  
#19 0x00000000004108e0 in rb\_f\_loop () at eval.c:5247  
#20 0x000000000041b56a in rb\_call0 (klass=48011179309360,  
recv=48011179299480, id=4121, oid=  
4121,  
argc=0, argv=0x0, body=0x2baa79497b78, flags=)  
at eval.c:5917  
#21 0x000000000041c278 in rb\_call (klass=48011179309360,  
recv=48011179299480, mid=4121, argc  
=0,  
argv=0x0, scope=1, self=48011179299480) at eval.c:6164  
#22 0x0000000000416fec in rb\_eval (self=,  
n=)  
at eval.c:3518  
#23 0x0000000000418ff2 in rb\_eval (self=48011179299480, n=) at eval.c:3  
233  
#24 0x0000000000427b89 in ruby\_exec\_internal () at eval.c:1652  
#25 0x0000000000427bd5 in ruby\_exec () at eval.c:1672  
#26 0x0000000000427bff in ruby\_run () at eval.c:1682  
#27 0x000000000040ddc3 in main (argc=2, argv=0x7fff3168a048,  
envp=)  
at main.c:48

---

<div class="post-metadata">

**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\
**Post date:** [January 8, 2010, 8:55am UTC](https://www.ruby-forum.com/t/marshal-load-b-gnc30h-8-k-b-segmentation-fault-b-i-b/176599/4 "2010-01-08T08:55:39Z")

</div>

e$B%A%1%C%He(B #2175 e$B$,99?7$5$l$^$7$?!#e(B (by Nobuyoshi N.)

e$B%9%F!\<%?%9e(B Opene$B$+$ie(BFeedbacke$B$KJQ99e(B  
ruby -v ruby 1.8.7 (2009-06-12 patchlevel 174)  
[x86\_64-linux]e$B$K%;%C%He(B

## r25230e$B$GD\>$C$F$$$^$;$s$+e(B?

[http://redmine.ruby-lang.org/issues/show/2175](http://redmine.ruby-lang.org/issues/show/2175)

---

<div class="post-metadata">

**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\
**Post date:** [January 8, 2010, 11:45am UTC](https://www.ruby-forum.com/t/marshal-load-b-gnc30h-8-k-b-segmentation-fault-b-i-b/176599/5 "2010-01-08T11:45:22Z")

</div>

e$B%A%1%C%He(B #2175 e$B$,99?7$5$l$^$7$?!#e(B (by Yuji Kaneda)

e$B6bED$G$9!#e(B

## [ruby-dev:39436]e$B$G$bJs9p$$$?$7$^$7$?$,e(Br25230e$B$GD\>$C$F$$$^$9!#e(B Redminee$B$NJQ99$,$L$1$F$\*$j?=$7Lu$"$j$^$;$s!#e(B

[http://redmine.ruby-lang.org/issues/show/2175](http://redmine.ruby-lang.org/issues/show/2175)