Bug #664: ruby 1.9 (trunk rev 19846) segfaults

• Status: Closed
• Assignee: -
• Target version: 2.0.0

[stefan (Stefan Lang)]

=begin
My build passes "make test".

I'm trying to port Rant to Ruby 1.9 and it segfaults
most of the time.

One possible way to produce a segfault:

$ svn checkout http://rant.rubyforge.org/svn/
$ ruby19 run_rant -n doc

GNU gdb 6.6-debian
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This GDB was configured as "i486-linux-gnu"...
Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
(gdb) run
Starting program: /usr/local/bin/ruby19 run_rant -n doc
[Thread debugging using libthread_db enabled]
[New Thread -1210849600 (LWP 21608)]
[New Thread -1208980592 (LWP 21611)]
Executing "doc/html/index.html"

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1210849600 (LWP 21608)]
vm_call0 (th=0x81a8738, klass=136128800, recv=138762300, id=325, oid=0, argc=1, argv=0xbfc31e70, body=0x81d2830, nosuper=0)
at vm_insnhelper.c:50
50 cfp->iseq = (rb_iseq_t *) iseq;
(gdb) backtrace
#0 vm_call0 (th=0x81a8738, klass=136128800, recv=138762300, id=325, oid=0, argc=1, argv=0xbfc31e70, body=0x81d2830, nosuper=0)
at vm_insnhelper.c:50
#1 0x081113f4 in rb_funcall (recv=, mid=325, n=1) at vm_eval.c:254
#2 0x0808295d in rb_equal (obj1=3083341784, obj2=138761380) at object.c:51
#3 0x0811bd23 in vm_call0 (th=0x81a8738, klass=136128800, recv=138761380, id=325, oid=0, argc=1, argv=0xbfc31f60, body=0x81d2830,
nosuper=0) at vm_eval.c:69
#4 0x081113f4 in rb_funcall (recv=, mid=325, n=1) at vm_eval.c:254
#5 0x0808295d in rb_equal (obj1=3083341784, obj2=138762300) at object.c:51
#6 0x0811bd23 in vm_call0 (th=0x81a8738, klass=136128800, recv=138762300, id=325, oid=0, argc=1, argv=0xbfc32050, body=0x81d2830,
nosuper=0) at vm_eval.c:69
#7 0x081113f4 in rb_funcall (recv=, mid=325, n=1) at vm_eval.c:254
#8 0x0808295d in rb_equal (obj1=3083341784, obj2=138761380) at object.c:51
#9 0x0811bd23 in vm_call0 (th=0x81a8738, klass=136128800, recv=138761380, id=325, oid=0, argc=1, argv=0xbfc32140, body=0x81d2830,
nosuper=0) at vm_eval.c:69
#10 0x081113f4 in rb_funcall (recv=, mid=325, n=1) at vm_eval.c:254
#11 0x0808295d in rb_equal (obj1=3083341784, obj2=138762300) at object.c:51
#12 0x0811bd23 in vm_call0 (th=0x81a8738, klass=136128800, recv=138762300, id=325, oid=0, argc=1, argv=0xbfc32230, body=0x81d2830,
nosuper=0) at vm_eval.c:69
#13 0x081113f4 in rb_funcall (recv=, mid=325, n=1) at vm_eval.c:254
#14 0x0808295d in rb_equal (obj1=3083341784, obj2=138761380) at object.c:51
#15 0x0811bd23 in vm_call0 (th=0x81a8738, klass=136128800, recv=138761380, id=325, oid=0, argc=1, argv=0xbfc32320, body=0x81d2830,
nosuper=0) at vm_eval.c:69
#16 0x081113f4 in rb_funcall (recv=, mid=325, n=1) at vm_eval.c:254
#17 0x0808295d in rb_equal (obj1=3083341784, obj2=138762300) at object.c:51
#18 0x0811bd23 in vm_call0 (th=0x81a8738, klass=136128800, recv=138762300, id=325, oid=0, argc=1, argv=0xbfc32410, body=0x81d2830,
---Type to continue, or q to quit---q
nQuit
) at vm_eval.c:69
#19 0x081113f4 in rb_funcall (recv=, mid=325, n=1) at vm_eval.c:254
#20 0x0808295d in rb_equal (obj1=3083341784, obj2=138761380) at object.c:51
#21 0x0811bd23 in vm_call0 (th=0x81a8738, klass=136128800, recv=138761380, id=325, oid=0, argc=1, argv=0xbfc32500, body=0x81d2830,
nosuper=0) at vm_eval.c:69
#22 0x081113f4 in rb_funcall (recv=, mid=325, n=1) at vm_eval.c:254
#23 0x0808295d in rb_equal (obj1=3083341784, obj2=138762300) at object.c:51
#24 0x0811bd23 in vm_call0 (th=0x81a8738, klass=136128800, recv=138762300, id=325, oid=0, argc=1, argv=0xbfc325f0, body=0x81d2830,
nosuper=0) at vm_eval.c:69
#25 0x081113f4 in rb_funcall (recv=, mid=325, n=1) at vm_eval.c:254
#26 0x0808295d in rb_equal (obj1=3083341784, obj2=138761380) at object.c:51
#27 0x0811bd23 in vm_call0 (th=0x81a8738, klass=136128800, recv=138761380, id=325, oid=0, argc=1, argv=0xbfc326e0, body=0x81d2830,
nosuper=0) at vm_eval.c:69
#28 0x081113f4 in rb_funcall (recv=, mid=325, n=1) at vm_eval.c:254
#29 0x0808295d in rb_equal (obj1=3083341784, obj2=138762300) at object.c:51
#30 0x0811bd23 in vm_call0 (th=0x81a8738, klass=136128800, recv=138762300, id=325, oid=0, argc=1, argv=0xbfc327d0, body=0x81d2830,
nosuper=0) at vm_eval.c:69
#31 0x081113f4 in rb_funcall (recv=, mid=325, n=1) at vm_eval.c:254
#32 0x0808295d in rb_equal (obj1=3083341784, obj2=138761380) at object.c:51
#33 0x0811bd23 in vm_call0 (th=0x81a8738, klass=136128800, recv=138761380, id=325, oid=0, argc=1, argv=0xbfc328c0, body=0x81d2830,
nosuper=0) at vm_eval.c:69
#34 0x081113f4 in rb_funcall (recv=, mid=325, n=1) at vm_eval.c:254
#35 0x0808295d in rb_equal (obj1=3083341784, obj2=138762300) at object.c:51
#36 0x0811bd23 in vm_call0 (th=0x81a8738, klass=136128800, recv=138762300, id=325, oid=0, argc=1, argv=0xbfc329b0, body=0x81d2830,
nosuper=0) at vm_eval.c:69
---Type to continue, or q to quit---q

This pattern repeats for more than 15000 stackframes.
=end

[stefan (Stefan Lang)]

=begin
I couldn't trigger a segfault in revision 19889.
=end

[matz (Yukihiro Matsumoto)]

• Status changed from Open to Closed

=begin

=end