[MacRuby] #1356: Segfault occurs when invoked a Pointer.new within some threads.
MacRuby
ruby-noreply at macosforge.org
Thu Jul 7 09:47:16 PDT 2011
#1356: Segfault occurs when invoked a Pointer.new within some threads.
----------------------------------+-----------------------------------------
Reporter: watson1978@… | Owner: lsansonetti@…
Type: defect | Status: new
Priority: blocker | Milestone:
Component: MacRuby | Keywords:
----------------------------------+-----------------------------------------
Segfault occurs when invoked a Pointer.new within some threads.
Test Script:
{{{
#!ruby
th = Thread.new {
200.times do
Pointer.new('@')
end
}
200.times do
Pointer.new('@')
end
th.join
puts :ok
}}}
BackTrace:
{{{
Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x0000000000000000
0x00000001005cab0e in (anonymous namespace)::GVN::runOnFunction () at
Type.h:511
511 }
(gdb) t a a bt
Thread 3 (process 76104):
#0 0x00000001005be592 in llvm::DenseMap<(anonymous
namespace)::Expression, unsigned int, llvm::DenseMapInfo<(anonymous
namespace)::Expression>, llvm::DenseMapInfo<unsigned int>
>::FindAndConstruct () at Type.h:511
#1 0x00000001005c3a29 in (anonymous namespace)::ValueTable::lookup_or_add
() at Type.h:511
#2 0x00000001005c92de in (anonymous namespace)::GVN::processBlock () at
Type.h:511
#3 0x00000001005cae66 in (anonymous namespace)::GVN::runOnFunction () at
Type.h:511
#4 0x0000000100904ea0 in llvm::FPPassManager::runOnFunction () at
vector.tcc:300
#5 0x000000010090503c in llvm::FunctionPassManagerImpl::run () at
vector.tcc:300
#6 0x0000000100905329 in llvm::FunctionPassManager::run () at
vector.tcc:300
#7 0x0000000100142379 in RoxorCore::optimize (this=0x102068200,
func=0x1048001f0) at vm.cpp:554
#8 0x00000001001423f2 in RoxorCore::compile (this=0x102068200,
func=0x1048001f0, run_optimize=true) at vm.cpp:591
#9 0x00000001001424f2 in RoxorCore::gen_to_ocval_convertor
(this=0x102068200, type=@0x10177e320) at vm.cpp:3052
#10 0x00000001000e18dd in rb_pointer_init_type (ptr=0x200021000,
type=8590069696) at bridgesupport.cpp:867
#11 0x00000001000e1a08 in rb_pointer_new (type_str=0x2000211a0 "@",
val=0x200021180, len=1) at bridgesupport.cpp:879
#12 0x00000001000e1e42 in rb_pointer_s_new (rcv=8590643360,
sel=0x100f22350, argc=1, argv=0x10177f388) at bridgesupport.cpp:910
#13 0x000000010012deb3 in ruby_dispatch [inlined] () at /Users/watson/src
/macruby-master/dispatcher.cpp:448
#14 0x000000010012deb3 in rb_vm_dispatch () at dispatcher.cpp:872
#15 0x00000001015006d4 in ?? ()
#16 0x0000000101500e4c in ?? ()
#17 0x0000000100134887 in __rb_vm_bcall [inlined] () at /Users/watson/src
/macruby-master/dispatcher.cpp:98
#18 0x0000000100134887 in vm_block_eval [inlined] () at /Users/watson/src
/macruby-master/dispatcher.cpp:1221
#19 0x0000000100134887 in rb_vm_yield_args () at dispatcher.cpp:1278
#20 0x00000001000daefd in rb_vm_yield (argc=1, argv=0x10177f928) at
vm.h:697
#21 0x00000001000daed0 in rb_yield (val=1) at vm_eval.c:183
#22 0x000000010004cdda in int_dotimes (num=801, sel=0x100fe73e0) at
numeric.c:3241
#23 0x000000010012e4b4 in __rb_vm_rcall [inlined] () at /Users/watson/src
/macruby-master/dispatcher.cpp:159
#24 0x000000010012e4b4 in ruby_dispatch [inlined] () at /Users/watson/src
/macruby-master/dispatcher.cpp:466
#25 0x000000010012e4b4 in rb_vm_dispatch () at dispatcher.cpp:872
#26 0x00000001015006d4 in ?? ()
#27 0x0000000101500c01 in ?? ()
#28 0x0000000100132867 in __rb_vm_bcall [inlined] () at /Users/watson/src
/macruby-master/dispatcher.cpp:98
#29 0x0000000100132867 in vm_block_eval [inlined] () at /Users/watson/src
/macruby-master/dispatcher.cpp:1221
#30 0x0000000100132867 in rb_vm_block_eval (b=0x2000a99c0, argc=0,
argv=0x0) at dispatcher.cpp:1228
#31 0x000000010014cd0f in rb_vm_thread_run (thread=8590086752) at
vm.cpp:4866
#32 0x00007fff83cf9fd6 in _pthread_start ()
#33 0x00007fff83cf9e89 in thread_start ()
Thread 2 (process 76104):
#0 0x00007fff83cdaa2a in __workq_kernreturn ()
#1 0x00007fff83cdae3c in _pthread_wqthread ()
#2 0x00007fff83cdaaa5 in start_wqthread ()
Thread 1 (process 76104):
#0 0x00000001005cab0e in (anonymous namespace)::GVN::runOnFunction () at
Type.h:511
#1 0x0000000100904ea0 in llvm::FPPassManager::runOnFunction () at
vector.tcc:300
#2 0x000000010090503c in llvm::FunctionPassManagerImpl::run () at
vector.tcc:300
#3 0x0000000100905329 in llvm::FunctionPassManager::run () at
vector.tcc:300
#4 0x0000000100142379 in RoxorCore::optimize (this=0x102068200,
func=0x1011ae630) at vm.cpp:554
#5 0x00000001001423f2 in RoxorCore::compile (this=0x102068200,
func=0x1011ae630, run_optimize=true) at vm.cpp:591
#6 0x00000001001424f2 in RoxorCore::gen_to_ocval_convertor
(this=0x102068200, type=@0x7fff5fbfb690) at vm.cpp:3052
#7 0x00000001000e18dd in rb_pointer_init_type (ptr=0x200020dc0,
type=8590069120) at bridgesupport.cpp:867
#8 0x00000001000e1a08 in rb_pointer_new (type_str=0x200020b60 "@",
val=0x200020b40, len=1) at bridgesupport.cpp:879
#9 0x00000001000e1e42 in rb_pointer_s_new (rcv=8590643360,
sel=0x100f22350, argc=1, argv=0x7fff5fbfc6f8) at bridgesupport.cpp:910
#10 0x000000010012deb3 in ruby_dispatch [inlined] () at /Users/watson/src
/macruby-master/dispatcher.cpp:448
#11 0x000000010012deb3 in rb_vm_dispatch () at dispatcher.cpp:872
#12 0x00000001015006d4 in ?? ()
#13 0x0000000101500d2c in ?? ()
#14 0x00000001001348cb in __rb_vm_bcall [inlined] () at /Users/watson/src
/macruby-master/dispatcher.cpp:100
#15 0x00000001001348cb in vm_block_eval [inlined] () at /Users/watson/src
/macruby-master/dispatcher.cpp:1221
#16 0x00000001001348cb in rb_vm_yield_args () at dispatcher.cpp:1278
#17 0x00000001000daefd in rb_vm_yield (argc=1, argv=0x7fff5fbfcc98) at
vm.h:697
#18 0x00000001000daed0 in rb_yield (val=1) at vm_eval.c:183
#19 0x000000010004cdda in int_dotimes (num=801, sel=0x100fe73e0) at
numeric.c:3241
#20 0x000000010012e4b4 in __rb_vm_rcall [inlined] () at /Users/watson/src
/macruby-master/dispatcher.cpp:159
#21 0x000000010012e4b4 in ruby_dispatch [inlined] () at /Users/watson/src
/macruby-master/dispatcher.cpp:466
#22 0x000000010012e4b4 in rb_vm_dispatch () at dispatcher.cpp:872
#23 0x00000001015006d4 in ?? ()
#24 0x0000000101500190 in ?? ()
#25 0x0000000100149cba in rb_vm_run (fname=0x2000a78a0
"/Users/watson/tmp/t.rb", node=0x200024ee0, binding=0x0,
inside_eval=false) at vm.cpp:4125
#26 0x000000010002858b in ruby_run_node (n=0x200024ee0) at eval.c:211
#27 0x0000000100000be3 in main (argc=2, argv=0x100f1c040,
envp=0x7fff5fbfde58) at main.cpp:40
(gdb)
}}}
--
Ticket URL: <http://www.macruby.org/trac/ticket/1356>
MacRuby <http://macruby.org/>
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