segfault while executing "require 'tk'"

[Siep Kroonenberg]

Binary package hint: ruby1.9.1

A ruby/tk program of mine which works correctly under Ruby 1.8 and under a Ruby 1.9.1 which I compiled from source crashes at startup with the following backtrace:

ruby1.9.1 ~/wdrive/epspdf/trunk/epspdftk.rb
/usr/lib/ruby/1.9.1/tk/event.rb:451: [BUG] Segmentation fault
ruby 1.9.1p243 (2009-07-16 revision 24175) [i486-linux]

-- control frame ----------
c:0012 p:---- s:0039 b:0039 l:000038 d:000038 CFUNC :_define_attribute_aliases
c:0011 p:2128 s:0035 b:0035 l:001b60 d:001b60 CLASS /usr/lib/ruby/1.9.1/tk/event.rb:451
c:0010 p:0019 s:0032 b:0032 l:000031 d:000031 CLASS /usr/lib/ruby/1.9.1/tk/event.rb:16
c:0009 p:0043 s:0030 b:0030 l:000029 d:000029 TOP /usr/lib/ruby/1.9.1/tk/event.rb:15
c:0008 p:---- s:0028 b:0028 l:000027 d:000027 FINISH
c:0007 p:0010 s:0026 b:0025 l:000024 d:000024 CLASS /usr/lib/ruby/1.9.1/tk.rb:913
c:0006 p:0077 s:0023 b:0023 l:000022 d:000022 TOP /usr/lib/ruby/1.9.1/tk.rb:912
c:0005 p:---- s:0012 b:0012 l:000011 d:000011 FINISH
c:0004 p:---- s:0010 b:0010 l:000009 d:000009 CFUNC :require
c:0003 p:0162 s:0006 b:0006 l:0013c4 d:00036c EVAL /home/siepo/wdrive/epspdf/trunk/epspdftk.rb:55
c:0002 p:---- s:0004 b:0004 l:000003 d:000003 FINISH
c:0001 p:0000 s:0002 b:0002 l:0013c4 d:0013c4 TOP
---------------------------
-- Ruby level backtrace information-----------------------------------------
/usr/lib/ruby/1.9.1/tk/event.rb:451:in `_define_attribute_aliases'
/usr/lib/ruby/1.9.1/tk/event.rb:451:in `<class:Event>'
/usr/lib/ruby/1.9.1/tk/event.rb:16:in `<module:TkEvent>'
/usr/lib/ruby/1.9.1/tk/event.rb:15:in `<top (required)>'
/usr/lib/ruby/1.9.1/tk.rb:913:in `<module:TkComm>'
/usr/lib/ruby/1.9.1/tk.rb:912:in `<top (required)>'
/home/siepo/wdrive/epspdf/trunk/epspdftk.rb:55:in `require'
/home/siepo/wdrive/epspdf/trunk/epspdftk.rb:55:in `<main>'

-- C level backtrace information -------------------------------------------
0x23a6e9 /usr/lib/libruby-1.9.1.so.1.9(rb_vm_bugreport+0x69) [0x23a6e9]
0x15607f /usr/lib/libruby-1.9.1.so.1.9 [0x15607f]
0x15611a /usr/lib/libruby-1.9.1.so.1.9(rb_bug+0x3a) [0x15611a]
0x1e1fa4 /usr/lib/libruby-1.9.1.so.1.9 [0x1e1fa4]
0xab3410 [0xab3410]
0x1e81ae /usr/lib/libruby-1.9.1.so.1.9(st_lookup+0xe) [0x1e81ae]
0x2271e6 /usr/lib/libruby-1.9.1.so.1.9 [0x2271e6]
0x227251 /usr/lib/libruby-1.9.1.so.1.9(rb_get_method_body+0x31) [0x227251]
0x22b2d7 /usr/lib/libruby-1.9.1.so.1.9(rb_funcall+0xd7) [0x22b2d7]
0xef19c7 /usr/lib/ruby/1.9.1/i486-linux/tkutil.so [0xef19c7]
0x228983 /usr/lib/libruby-1.9.1.so.1.9 [0x228983]
0x228ce1 /usr/lib/libruby-1.9.1.so.1.9 [0x228ce1]
0x234ddc /usr/lib/libruby-1.9.1.so.1.9 [0x234ddc]
0x22e1ee /usr/lib/libruby-1.9.1.so.1.9 [0x22e1ee]
0x231508 /usr/lib/libruby-1.9.1.so.1.9 [0x231508]
0x2317fa /usr/lib/libruby-1.9.1.so.1.9(rb_iseq_eval+0x12a) [0x2317fa]
0x159ffd /usr/lib/libruby-1.9.1.so.1.9(rb_load+0x18d) [0x159ffd]
0x15ae78 /usr/lib/libruby-1.9.1.so.1.9(rb_require_safe+0x618) [0x15ae78]
0x2129e5 /usr/lib/libruby-1.9.1.so.1.9(rb_autoload_load+0xa5) [0x2129e5]
0x2152d6 /usr/lib/libruby-1.9.1.so.1.9 [0x2152d6]
0x22f519 /usr/lib/libruby-1.9.1.so.1.9 [0x22f519]
0x231508 /usr/lib/libruby-1.9.1.so.1.9 [0x231508]
0x2317fa /usr/lib/libruby-1.9.1.so.1.9(rb_iseq_eval+0x12a) [0x2317fa]
0x159ffd /usr/lib/libruby-1.9.1.so.1.9(rb_load+0x18d) [0x159ffd]
0x15ae78 /usr/lib/libruby-1.9.1.so.1.9(rb_require_safe+0x618) [0x15ae78]
0x15b166 /usr/lib/libruby-1.9.1.so.1.9(rb_f_require+0x26) [0x15b166]
0x228983 /usr/lib/libruby-1.9.1.so.1.9 [0x228983]
0x228ce1 /usr/lib/libruby-1.9.1.so.1.9 [0x228ce1]
0x234ddc /usr/lib/libruby-1.9.1.so.1.9 [0x234ddc]
0x22e1ee /usr/lib/libruby-1.9.1.so.1.9 [0x22e1ee]
0x231508 /usr/lib/libruby-1.9.1.so.1.9 [0x231508]
0x2316ab /usr/lib/libruby-1.9.1.so.1.9(rb_iseq_eval_main+0xab) [0x2316ab]
0x158007 /usr/lib/libruby-1.9.1.so.1.9(ruby_exec_node+0xb7) [0x158007]
0x1595e6 /usr/lib/libruby-1.9.1.so.1.9(ruby_run_node+0x56) [0x1595e6]
0x80487e8 ruby1.9.1(main+0x68) [0x80487e8]
0x339b56 /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe6) [0x339b56]
0x80486e1 ruby1.9.1 [0x80486e1]

[NOTE]
You may encounter a bug of Ruby interpreter. Bug reports are welcome.
For details: http://www.ruby-lang.org/bugreport.html

Aborted

Additionally, this same program suffers under bug #511339 when run by ruby1.9.

I am open to suggestions how to narrow this down.

Ubuntu release: Karmic
Package version: 1.9.1.243-2

[Lucas Nussbaum (lucas)]

Hi,

I cannot reproduce this with version 1.9.1.378-3 (in lucid): require 'tk' doesn't cause a segfault.

Please provide more information if you can still reproduce that bug.

[Siep Kroonenberg (siepo)]

The program that used to crash, crashes no longer crashes.