hardcore gdc problems

[Downs]

Downs wrote:
> Thomas Kuehne wrote:
>>
>> This might cause exceptions even if the
>> host actually exists. Regardless, #2 looks sane. Judging form the other
>> data #1's obj seems to be a valid address. #0 should be somewhere inside
>> _Unwind_SjLj_RaiseException.
>>
>> GCC-4.1.2's doesn't document _Unwind_SjLj_RaiseException apart from
>> "document me!". Thus one question would be: what happens if more than one
>> thread tries to unwind at the same time?
>>
> 

Here's another debugging session, obtained after rebuilding phobos, this time with more debugging info.
It's another error, but they seem to be related. This one should be a little easier to understand (hopefully).
Sadly, I have absolutely no idea what's going on here. Some kind of stack corruption?

D:\code\d\yawr>gdb bin\dbg\yawr.exe
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This GDB was configured as "i686-pc-mingw32"...
(gdb) r
Starting program: D:\code\d\yawr/bin\dbg\yawr.exe

Program received signal SIGSEGV, Segmentation fault.
[Switching to thread 5356.0xdb8]
0x0043f40b in read_uleb128 (p=0xa2f0000 <Address 0xa2f0000 out of bounds>,
     val=0xa2ef5f0) at ../../../gcc-4.1.2/libphobos/gcc/unwind.d:335
335           a_byte = *p++;
(gdb) bt
#0  0x0043f40b in read_uleb128 (p=0xa2f0000 <Address 0xa2f0000 out of bounds>,
     val=0xa2ef5f0) at ../../../gcc-4.1.2/libphobos/gcc/unwind.d:335
#1  0x004233f4 in _D3gcc3deh15personalityImplFiT3gcc6unwind14_Unwind_ActionmPS3g
cc6unwind17_Unwind_ExceptionPS3gcc6unwind15_Unwind_ContextZk (iversion=1,
     actions=1, exception_class=26844869579591239, ue_header=0xef286d8,
     context=0xa2ef6b0) at ../../../gcc-4.1.2/libphobos/gcc/deh.d:202
#2  0x0042324a in __gdc_personality_sj0 (iversion=1, actions=1,
     exception_class=26844869579591239, ue_header=0xef286d8, context=0xa2ef6b0)
     at ../../../gcc-4.1.2/libphobos/gcc/deh.d:120
#3  0x00534092 in _Unwind_SjLj_RaiseException (exc=0xef286d8)
     at ../../gcc-4.1.2/gcc/unwind.inc:117
#4  0x00423205 in _d_throw (obj=@0xef37600)
     at ../../../gcc-4.1.2/libphobos/gcc/deh.d:99
#5  0x0042d773 in _d_array_bounds (filename=
       {length = 6, ptr = 0x55ce40 "main.d"}, line=113)
     at ../../../gcc-4.1.2/libphobos/std/array.d:38
#6  0x00403c02 in _D4main11do_DownloadFAaZAa (param=
       {length = 50, ptr = 0x1f28900 "http://www.shamusyoung.com/twentysidedtale/
?p=1071"}) at main.d:113
#7  0x0040bb08 in _D4main8downloadFAaDFfZvZAa13__dgliteral27MFAaZAa (c=
       {length = 50, ptr = 0x1f28900 "http://www.shamusyoung.com/twentysidedtale/
?p=1071"}) at main.d:879
#8  0x004118e2 in _D5tools6buffer17__T6bufferTAaTAaZ6buffer3getMFAaZAa13__dglite
---Type <return> to continue, or q <return> to quit---
ral77MFZb () at tools/buffer.d:37
#9  0x0054ada6 in _D5tools6buffer17__T6bufferTAaTAaZ6buffer3getMFAaZAa (
     this=@0x1efb640, idx=
       {length = 50, ptr = 0x1f28900 "http://www.shamusyoung.com/twentysidedtale/
?p=1071"}) at tools/buffer.d:28
#10 0x0040bab5 in _D4main8downloadFAaDFfZvZAa (url=
       {length = 50, ptr = 0x1f28900 "http://www.shamusyoung.com/twentysidedtale/
?p=1071"}, progress=
       {object = 0xa2efe5c, func = 0x4129eb <_D4main17__T6fhtagnVb0Vb0Z6fhtagn6up
dateMFDFZvDFZvZv13__dgliteral91MFfZv>}) at main.d:883
#11 0x005400ed in _D4main17__T6fhtagnVb0Vb0Z6fhtagn6updateMFDFZvDFZvZv (
     this=@0x1cdd180, redraw=
       {object = 0x1e84600, func = 0x40c6f2 <_D4main14user_interface7refreshMFZv>
}, got=
       {object = 0x1f24f80, func = 0x53a560 <_D3std4bind117__T9BoundFuncTDFC4main
5comicZvS41_D3std4bind9NullAliasS3std4bind9EmptySlotTS3std4bind23__T5TupleTC4mai
n5comicZ5TupleZ9BoundFunc16__T10MBoundFuncZ4funcMFZv>}) at main.d:557
#12 0x0053a4cb in _D3std4bind110__T9BoundFuncTDFDFZvDFZvZvS41_D3std4bind9NullAli
asS3std4bind9EmptySlotTS3std4bind20__T5TupleTDFZvTDFZvZ5TupleZ9BoundFunc16__T10M
BoundFuncZ4funcMFZv (this=@0x1f24f60)
     at c:/mingw/bin/../lib/gcc/mingw32/4.1.2/../../../../include/d/4.1.2/std/bin
d.d:527
#13 0x0041107f in _D4main10poolthread3runMFZi (this=@0x1e84e00) at main.d:1319
---Type <return> to continue, or q <return> to quit---
#14 0x0043c70f in _D3std6thread6Thread11threadstartWPvZk at 4 (p=0x1e84e00)
     at ../../../gcc-4.1.2/libphobos/std/thread.d:412
#15 0x77c3a3b0 in _libws2_32_a_iname ()
#16 0x7c80b683 in _libws2_32_a_iname ()
(gdb)