Unfortunately, I don't have much information at this point, but here's
what I do have:
[2003-12-08 12:55:39] INFO WEBrick::HTTPServer#start: pid=22231
port=2222
/usr/lib/ruby/1.8/timeout.rb:47: [BUG] Segmentation fault
ruby 1.8.1 (2003-12-05) [i386-linux]
timeout.rb line 47 seems innocuous enough; it simply kills the timeout
thread if it is still running. Any ideas?
If I discover anything else, I'll let you know (although, of course,
it only happens under load :-/ ).
The segfault occurs at inconsistent times (sometimes almost twice in a
row, sometimes it'll go hours), and in inconsistent places (I've had it
segfault in timeout.rb and in various WEBrick files).
I've managed to coax a backtrace out of it:
(gdb) bt
#0 0x409db64c in ?? ()
#1 0x400e81e1 in siglongjmp () from /lib/libc.so.6
#2 0x400e814c in siglongjmp () from /lib/libc.so.6
#3 0x40022426 in longjmp () from /lib/libpthread.so.0
#4 0x080668b6 in rb_thread_restore_context (th=0x811d618, exit=1) at
eval.c:8526
#5 0x08067afe in rb_thread_schedule () at eval.c:8930
#6 0x08068051 in rb_thread_select (max=23, read=0xbffe5700,
write=0x0, except=0x0,
timeout=0xbffe5568) at eval.c:9105
#7 0x0807e08d in rb_f_select (argc=4, argv=0xbffe59a0,
obj=1075936204) at io.c:3321
#8 0x0806b213 in call_cfunc (func=0x807d9f4 <rb_f_select>,
recv=1075936204, len=-1, argc=4,
argv=0xbffe59a0) at eval.c:4903
#9 0x0805dfb3 in rb_call0 (klass=1075936184, recv=1075936204,
id=3721, oid=3721, argc=4,
argv=0xbffe59a0, body=0x40217a28, nosuper=0) at eval.c:5037
#10 0x0805eaf8 in rb_call (klass=1075936184, recv=1075936204,
mid=3721, argc=4,
argv=0xbffe59a0, scope=0) at eval.c:5258
#11 0x080587aa in rb_eval (self=1083839784, n=0x405cfae4) at
eval.c:3053
#12 0x080572d0 in rb_eval (self=1083839784, n=0x405ce07c) at
eval.c:2728
#13 0x0805e5af in rb_call0 (klass=1076576852, recv=1083839784,
id=41257, oid=41257, argc=0,
argv=0x0, body=0x405ce07c, nosuper=0) at eval.c:5165
#14 0x0805eaf8 in rb_call (klass=1076576852, recv=1083839784,
mid=41257, argc=0, argv=0x0,
scope=2) at eval.c:5258
#15 0x08058a9c in rb_eval (self=1083839784, n=0x405d8428) at
eval.c:3074
#16 0x080572f6 in rb_eval (self=1083839784, n=0x405d7bb8) at
eval.c:2732
#17 0x08057ab9 in rb_eval (self=1083839784, n=0x405d67b8) at
eval.c:2860
#18 0x0805e5af in rb_call0 (klass=1076576852, recv=1083839784,
id=40937, oid=40937, argc=0,
argv=0xbffe7724, body=0x405d67b8, nosuper=0) at eval.c:5165
#19 0x0805eaf8 in rb_call (klass=1076576852, recv=1083839784,
mid=40937, argc=1,
argv=0xbffe7720, scope=1) at eval.c:5258
#20 0x08058a64 in rb_eval (self=1083839784, n=0x405d5610) at
eval.c:3068
#21 0x08058575 in rb_eval (self=1083839784, n=0x405d5598) at
eval.c:3047
#22 0x0805e5af in rb_call0 (klass=1076576852, recv=1083839784,
id=7321, oid=7321, argc=0,
argv=0x0, body=0x405d5598, nosuper=0) at eval.c:5165
#23 0x0805eaf8 in rb_call (klass=1076576852, recv=1083839784,
mid=7321, argc=0, argv=0x0,
scope=0) at eval.c:5258
#24 0x080587aa in rb_eval (self=1080956984, n=0x406057e8) at
eval.c:3053
#25 0x08059753 in rb_eval (self=1080956984, n=0x40604f50) at
eval.c:3236
#26 0x0805e5af in rb_call0 (klass=1080956924, recv=1080956984,
id=40913, oid=40913, argc=0,
argv=0xbffe8f74, body=0x40604f50, nosuper=0) at eval.c:5165
#27 0x0805eaf8 in rb_call (klass=1080956924, recv=1080956984,
mid=40913, argc=1,
argv=0xbffe8f70, scope=1) at eval.c:5258
#28 0x08058a64 in rb_eval (self=1080956984, n=0x406075d4) at
eval.c:3068
#29 0x08057966 in rb_eval (self=1080956984, n=0x40607570) at
eval.c:2832
#30 0x08059705 in rb_eval (self=1080956984, n=0x40606fe4) at
eval.c:3230
#31 0x0805e5af in rb_call0 (klass=1080956924, recv=1080956984,
id=40249, oid=40249, argc=0,
argv=0xbffea0f4, body=0x40606fe4, nosuper=0) at eval.c:5165
#32 0x0805eaf8 in rb_call (klass=1080956924, recv=1080956984,
mid=40249, argc=1,
argv=0xbffea0f0, scope=0) at eval.c:5258
#33 0x080587aa in rb_eval (self=1083840624, n=0x4066c2b8) at
eval.c:3053
#34 0x08059753 in rb_eval (self=1083840624, n=0x4066c240) at
eval.c:3236
#35 0x08057135 in rb_eval (self=1083840624, n=0x4066e540) at
eval.c:2697
#36 0x0805e5af in rb_call0 (klass=1076273488, recv=1083840624,
id=32153, oid=32153, argc=0,
argv=0xbffeb288, body=0x4066e540, nosuper=0) at eval.c:5165
#37 0x0805eaf8 in rb_call (klass=1076273488, recv=1083840624,
mid=32153, argc=2,
argv=0xbffeb280, scope=1) at eval.c:5258
#38 0x08058a64 in rb_eval (self=1083840624, n=0x4066da64) at
eval.c:3068
#39 0x08063c49 in block_pass (self=1083840624, node=0x4066dadc) at
eval.c:7326
#40 0x080573e4 in rb_eval (self=1083840624, n=0x4066dadc) at
eval.c:2759
#41 0x08058126 in rb_eval (self=1083840624, n=0x4066d9c4) at
eval.c:2997
#42 0x0805c200 in rb_yield_0 (val=1083840624, self=1083840624,
klass=0, flags=0, avalue=0)
at eval.c:4270
#43 0x08057a10 in rb_eval (self=1083840624, n=0x40685ce0) at
eval.c:2849
#44 0x08058126 in rb_eval (self=1083840624, n=0x40685c7c) at
eval.c:2997
#45 0x08057cdb in rb_eval (self=1083840624, n=0x40685754) at
eval.c:2909
#46 0x0805e5af in rb_call0 (klass=1076273488, recv=1083840624,
id=5001, oid=5001, argc=0,
argv=0x0, body=0x40685754, nosuper=0) at eval.c:5165
#47 0x0805eaf8 in rb_call (klass=1076273488, recv=1083840624,
mid=5001, argc=0, argv=0x0,
scope=1) at eval.c:5258
#48 0x08058a64 in rb_eval (self=1083840624, n=0x4066d8c0) at
eval.c:3068
#49 0x08057578 in rb_eval (self=1083840624, n=0x4066e540) at
eval.c:2773
#50 0x0805e5af in rb_call0 (klass=1076273488, recv=1083840624,
id=32153, oid=32153, argc=0,
argv=0xbffee294, body=0x4066e540, nosuper=0) at eval.c:5165
#51 0x0805eaf8 in rb_call (klass=1076273488, recv=1083840624,
mid=32153, argc=1,
argv=0xbffee290, scope=1) at eval.c:5258
#52 0x08058a64 in rb_eval (self=1083840624, n=0x4067c424) at
eval.c:3068
#53 0x08059753 in rb_eval (self=1083840624, n=0x4067c30c) at
eval.c:3236
#54 0x0805e5af in rb_call0 (klass=1076273488, recv=1083840624,
id=30737, oid=30737, argc=0,
argv=0xbffeeed4, body=0x4067c30c, nosuper=0) at eval.c:5165
#55 0x0805eaf8 in rb_call (klass=1076273488, recv=1083840624,
mid=30737, argc=1,
argv=0xbffeeed0, scope=0) at eval.c:5258
#56 0x080587aa in rb_eval (self=1084288984, n=0x406b34b0) at
eval.c:3053
#57 0x0805c200 in rb_yield_0 (val=1084068484, self=1084288984,
klass=0, flags=1, avalue=2)
at eval.c:4270
#58 0x08063580 in proc_invoke (proc=1084288084, args=1083840724,
self=6, klass=0)
at eval.c:7155
#59 0x08063743 in proc_call (proc=1084288084, args=1083840724) at
eval.c:7197
#60 0x0806b1f4 in call_cfunc (func=0x806372c <proc_call>,
recv=1084288084, len=-2, argc=1,
argv=0xbffef920) at eval.c:4900
#61 0x0805dfb3 in rb_call0 (klass=1075914684, recv=1084288084,
id=331, oid=331, argc=1,
argv=0xbffef920, body=0x402126e0, nosuper=0) at eval.c:5037
#62 0x0805eaf8 in rb_call (klass=1075914684, recv=1084288084,
mid=331, argc=1,
argv=0xbffef920, scope=0) at eval.c:5258
#63 0x080587aa in rb_eval (self=1084288984, n=0x406b187c) at
eval.c:3053
#64 0x08057ab9 in rb_eval (self=1084288984, n=0x406b04e0) at
eval.c:2860
#65 0x0805c200 in rb_yield_0 (val=1084068484, self=1084288984,
klass=0, flags=1, avalue=2)
at eval.c:4270
#66 0x08063580 in proc_invoke (proc=1084287904, args=1083840844,
self=6, klass=0)
at eval.c:7155
#67 0x08063743 in proc_call (proc=1084287904, args=1083840844) at
eval.c:7197
#68 0x0806b1f4 in call_cfunc (func=0x806372c <proc_call>,
recv=1084287904, len=-2, argc=1,
argv=0xbfff08a0) at eval.c:4900
#69 0x0805dfb3 in rb_call0 (klass=1075914684, recv=1084287904,
id=5185, oid=5185, argc=,
argv=0xbfff08a0, body=0x40212730, nosuper=0) at eval.c:5037
#70 0x0805eaf8 in rb_call (klass=1075914684, recv=1084287904,
mid=5185, argc=1,
argv=0xbfff08a0, scope=0) at eval.c:5258
#71 0x080587aa in rb_eval (self=1084287864, n=0x406cd93c) at
eval.c:3053
#72 0x0805e5af in rb_call0 (klass=1084288884, recv=1084287864,
id=31993, oid=31993, argc=0,
argv=0xbfff0fb8, body=0x406cd93c, nosuper=0) at eval.c:5165
#73 0x0805eaf8 in rb_call (klass=1084288884, recv=1084287864,
mid=31993, argc=2,
argv=0xbfff0fb0, scope=0) at eval.c:5258
#74 0x080587aa in rb_eval (self=1084147884, n=0x406ab698) at
eval.c:3053
#75 0x08057e43 in rb_eval (self=1084147884, n=0x406ab60c) at
eval.c:2936
#76 0x0805c200 in rb_yield_0 (val=1084287864, self=1084147884,
klass=0, flags=0, avalue=0)
at eval.c:4270
#77 0x0805c4b6 in rb_yield (val=1084287864) at eval.c:4323
#78 0x080e0e7a in find_i (i=1084287864, memo=0x409d9540) at enum.c:67
#79 0x0805c1df in rb_yield_0 (val=1084287864, self=1075972664,
klass=0, flags=0, avalue=0)
at eval.c:4267
#80 0x0805c4b6 in rb_yield (val=1084287864) at eval.c:4323
#81 0x080d415f in rb_ary_each (ary=1084287724) at array.c:816
#82 0x0806b22d in call_cfunc (func=0x80d4128 <rb_ary_each>,
recv=1084287724, len=0, argc=0,
argv=0x0) at eval.c:4906
#83 0x0805dfb3 in rb_call0 (klass=1075947264, recv=1084287724,
id=3825, oid=3825, argc=0,
argv=0x0, body=0x4021a2dc, nosuper=0) at eval.c:5037
#84 0x0805eaf8 in rb_call (klass=1075947264, recv=1084287724,
mid=3825, argc=0, argv=0x0,
scope=1) at eval.c:5258
#85 0x0805ece6 in rb_funcall (recv=1084287724, mid=3825, n=0) at
eval.c:5323
#86 0x080e0d59 in rb_each (obj=1084287724) at enum.c:24
#87 0x0805cc7e in rb_iterate (it_proc=0x80e0d40 <rb_each>,
data1=1084287724,
bl_proc=0x80e0e68 <find_i>, data2=1084069184) at eval.c:4539
#88 0x080e0ef7 in enum_find (argc=0, argv=0x0, obj=1084287724) at
enum.c:85
#89 0x0806b213 in call_cfunc (func=0x80e0eac <enum_find>,
recv=1084287724, len=-1, argc=0,
argv=0x0) at eval.c:4903
#90 0x0805dfb3 in rb_call0 (klass=1075971844, recv=1084287724,
id=3705, oid=3705, argc=0,
argv=0x0, body=0x40220600, nosuper=0) at eval.c:5037
#91 0x0805eaf8 in rb_call (klass=1075971844, recv=1084287724,
mid=3705, argc=0, argv=0x0,
scope=0) at eval.c:5258
#92 0x080587aa in rb_eval (self=1084147884, n=0x406ab83c) at
eval.c:3053
#93 0x08057578 in rb_eval (self=1084147884, n=0x406ab56c) at
eval.c:2773
#94 0x08059753 in rb_eval (self=1084147884, n=0x406ac570) at
eval.c:3236
#95 0x0805e5af in rb_call0 (klass=1084288984, recv=1084147884,
id=24929, oid=24929, argc=0,
argv=0xbfff34a8, body=0x406ac570, nosuper=0) at eval.c:5165
#96 0x0805eaf8 in rb_call (klass=1084288984, recv=1084147884,
mid=24929, argc=2,
argv=0xbfff34a0, scope=0) at eval.c:5258
#97 0x080587aa in rb_eval (self=1083855504, n=0x402a9c14) at
eval.c:3053
#98 0x08059753 in rb_eval (self=1083855504, n=0x402aa204) at
eval.c:3236
#99 0x0805e5af in rb_call0 (klass=1080152184, recv=1083855504,
id=24833, oid=24833, argc=0,
argv=0xbfff4108, body=0x402aa204, nosuper=0) at eval.c:5165
#100 0x0805eaf8 in rb_call (klass=1080152184, recv=1083855504,
mid=24833, argc=2,
argv=0xbfff4100, scope=1) at eval.c:5258
#101 0x08058a64 in rb_eval (self=1083855504, n=0x402b0564) at
eval.c:3068
#102 0x0805e5af in rb_call0 (klass=1080152184, recv=1083855504,
id=24809, oid=24809, argc=0,
argv=0xbfff4828, body=0x402b0564, nosuper=0) at eval.c:5165
#103 0x0805eaf8 in rb_call (klass=1080152184, recv=1083855504,
mid=24809, argc=2,
argv=0xbfff4820, scope=1) at eval.c:5258
#104 0x08058a64 in rb_eval (self=1083855504, n=0x402b2e18) at
eval.c:3068
#105 0x0805e5af in rb_call0 (klass=1080152184, recv=1083855504,
id=24801, oid=24801, argc=0,
argv=0xbfff516c, body=0x402b2e18, nosuper=0) at eval.c:5165
#106 0x0805eaf8 in rb_call (klass=1080152184, recv=1083855504,
mid=24801, argc=2,
argv=0xbfff5164, scope=1) at eval.c:5258
#107 0x0805ec23 in rb_f_send (argc=2, argv=0xbfff5164,
recv=1083855504) at eval.c:5288
#108 0x0806b213 in call_cfunc (func=0x805eb94 <rb_f_send>,
recv=1083855504, len=-1, argc=3,
argv=0xbfff5160) at eval.c:4903
#109 0x0805dfb3 in rb_call0 (klass=1075977384, recv=1083855504,
id=3881, oid=3881, argc=3,
argv=0xbfff5160, body=0x4021fdb8, nosuper=0) at eval.c:5037
#110 0x0805eaf8 in rb_call (klass=1075977384, recv=1083855504,
mid=3881, argc=3,
argv=0xbfff5160, scope=1) at eval.c:5258
#111 0x08058a64 in rb_eval (self=1083855504, n=0x40643afc) at
eval.c:3068
#112 0x0805e5af in rb_call0 (klass=1080306364, recv=1083855504,
id=30929, oid=30929, argc=0,
argv=0xbfff5878, body=0x40643afc, nosuper=0) at eval.c:5165
#113 0x0805eaf8 in rb_call (klass=1080306364, recv=1083855504,
mid=30929, argc=2,
argv=0xbfff5870, scope=0) at eval.c:5258
#114 0x080587aa in rb_eval (self=1084286384, n=0x40647d50) at
eval.c:3053
#115 0x0805e5af in rb_call0 (klass=1080132744, recv=1084286384,
id=30929, oid=30929, argc=0,
argv=0xbfff5fc8, body=0x40647d50, nosuper=0) at eval.c:5165
#116 0x0805eaf8 in rb_call (klass=1080132744, recv=1084286384,
mid=30929, argc=2,
argv=0xbfff5fc0, scope=1) at eval.c:5258
#117 0x08058a64 in rb_eval (self=1084286384, n=0x40649240) at
eval.c:3068
#118 0x08057ab9 in rb_eval (self=1084286384, n=0x40648638) at
eval.c:2860
#119 0x08057cdb in rb_eval (self=1084286384, n=0x40649380) at
eval.c:2909
#120 0x08057135 in rb_eval (self=1084286384, n=0x40648390) at
eval.c:2697
#121 0x0805e5af in rb_call0 (klass=1080132744, recv=1084286384,
id=5081, oid=5081, argc=0,
argv=0xbfff76b4, body=0x40648390, nosuper=0) at eval.c:5165
#122 0x0805eaf8 in rb_call (klass=1080132744, recv=1084286384,
mid=5081, argc=1,
argv=0xbfff76b0, scope=1) at eval.c:5258
#123 0x08058a64 in rb_eval (self=1084286384, n=0x4032baac) at
eval.c:3068
#124 0x08057ab9 in rb_eval (self=1084286384, n=0x40328550) at
eval.c:2860
#125 0x08057cdb in rb_eval (self=1084286384, n=0x4032740c) at
eval.c:2909
#126 0x0805c200 in rb_yield_0 (val=1083757344, self=1084286384,
klass=0, flags=2, avalue=2)
at eval.c:4270
#127 0x080692c0 in rb_thread_yield (arg=1083757344, th=0x82b86c8) at
eval.c:9663
#128 0x08068f64 in rb_thread_start_0 (fn=0x80691f4 <rb_thread_yield>,
arg=0x4098d320,
th=0x82b86c8) at eval.c:9577
#129 0x08069413 in rb_thread_start (klass=1075962144,
args=1083757344) at eval.c:9702
#130 0x0806b1f4 in call_cfunc (func=0x80693c4 <rb_thread_start>,
recv=1075962144, len=-2,
argc=0, argv=0x0) at eval.c:4900
#131 0x0805dfb3 in rb_call0 (klass=1075962124, recv=1075962144,
id=5001, oid=5001, argc=0,
argv=0x0, body=0x4021e094, nosuper=0) at eval.c:5037
#132 0x0805eaf8 in rb_call (klass=1075962124, recv=1075962144,
mid=5001, argc=0, argv=0x0,
scope=0) at eval.c:5258
#133 0x080587aa in rb_eval (self=1084286384, n=0x4032bc3c) at
eval.c:3053
#134 0x08057578 in rb_eval (self=1084286384, n=0x4032bc8c) at
eval.c:2773
#135 0x0805e5af in rb_call0 (klass=1080823624, recv=1084286384,
id=23857, oid=23857, argc=0,
argv=0xbfff97e4, body=0x4032bc8c, nosuper=1) at eval.c:5165
#136 0x0805eaf8 in rb_call (klass=1080823624, recv=1084286384,
mid=23857, argc=1,
argv=0xbfff97e0, scope=1) at eval.c:5258
#137 0x08058a64 in rb_eval (self=1084286384, n=0x40322ad8) at
eval.c:3068
#138 0x08063c49 in block_pass (self=1084286384, node=0x40322aec) at
eval.c:7326
#139 0x080573e4 in rb_eval (self=0, n=0x0) at eval.c:2759
(gdb)
Any help would be MOST appreciated, or any additional ideas about how
to track this down. I have the server stopped in gdb at the SIGSEGV
point, so I can give information about the state of data structures in
memory if that would help.
Thanks,
Nathaniel
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