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digitalmars.D.bugs - [Issue 6144] New: Unexpected OPTLINK Termination at EIP=00428DA3

reply d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=6144

           Summary: Unexpected OPTLINK Termination at EIP=00428DA3
           Product: D
           Version: D2
          Platform: Other
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Optlink
        AssignedTo: nobody puremagic.com
        ReportedBy: dsimcha yahoo.com



Using the version of OPTLINK that comes with DMD 2.053.

This bug is only reproducible in the context of a fairly large program and I
don't really understand what triggers it, but here's the register status in
case that by some chance helps.

EIP=00428DA3
EAX=000002F8
EBX=00000433
ECX=0043F7B4
EDX=000002F8
ESI=02713D08
EDI=0043FBC1
EBP=0018FF04
ESP=0018FEF8
First=0040200 (Whatever First is, it showed up in the error message.)

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Jesse Phillips <Jesse.K.Phillips+D gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |Jesse.K.Phillips+D gmail.co
                   |                            |m



12:47:41 PDT ---
I'll add mine to it. I only get this when compiling with debug symbols enabled
(-g -gc). This is with OPTLINK (R) for Win32  Release 8.00.12. I don't even
know where to begin reducing my code.

EAX=00000C6C
EBX=00000D74
ECX=0043F7B4
EDX=00000C6C
ESI=01563394
EDI=0044055E
EBP=0012FF3C
ESP=0012FF30
First=00402000

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Walter Bright <bugzilla digitalmars.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bugzilla digitalmars.com



15:20:44 PDT ---
What you can do is try running it under windbg.exe. Open up an asm window on
where it fails, and submit a copy of the assembler instructions before & after
where it faults.

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09:02:36 PDT ---
Maybe I'm doing something wrong, but I just get a bunch of question marks from
the source/asm view. I at least now know First refers to the First Chance
Exception Windows throws. I'll throw some more data your way.

disassemly example:
0x00000000  ??              ???

Module Load: C:\OPT\DMD\WINDOWS\BIN\LINK.EXE  (symbol loading deferred)
Thread Create:  Process=0, Thread=0
Module Load: C:\windows\system32\NTDLL.DLL  (symbol loading deferred)
Module Load: C:\WINDOWS\SYSTEM32\KERNEL32.DLL  (symbol loading deferred)
Module Load: C:\WINDOWS\SYSTEM32\USER32.DLL  (symbol loading deferred)
Module Load: C:\WINDOWS\SYSTEM32\GDI32.DLL  (symbol loading deferred)
Module Load: C:\windows\system32\NTDLL.DLL  (no symbols loaded)
Module Load: C:\WINDOWS\SYSTEM32\IMM32.DLL  (symbol loading deferred)
Module Load: C:\WINDOWS\SYSTEM32\ADVAPI32.DLL  (symbol loading deferred)
Module Load: C:\WINDOWS\SYSTEM32\RPCRT4.DLL  (symbol loading deferred)
Module Load: C:\WINDOWS\SYSTEM32\SECUR32.DLL  (symbol loading deferred)
Module Load: C:\WINDOWS\SYSTEM32\WXVAULT.DLL  (symbol loading deferred)
Module Load: C:\WINDOWS\SYSTEM32\PSAPI.DLL  (symbol loading deferred)
Module Load: C:\WINDOWS\SYSTEM32\MPR.DLL  (symbol loading deferred)
Module Load: C:\WINDOWS\SYSTEM32\VERSION.DLL  (symbol loading deferred)
Module Load: C:\WINDOWS\SYSTEM32\SHLWAPI.DLL  (symbol loading deferred)
Module Load: C:\WINDOWS\SYSTEM32\MSVCRT.DLL  (symbol loading deferred)
Module Load: APP01.EXE  (symbol loading deferred)
Module Load: C:\WINDOWS\SYSTEM32\SHELL32.DLL  (symbol loading deferred)
Module Load:
C:\WINDOWS\WINSXS\X86_MICROSOFT.WINDOWS.COMMON-CONTROLS_6595B64144CCF1DF_6.0.2600.6028_X-WW_61E65202\COMCTL32.DLL
  (symbol loading deferred)
Module Load:
C:\WINDOWS\WINSXS\X86_MICROSOFT.WINDOWS.COMMON-CONTROLS_6595B64144CCF1DF_6.0.2600.6028_X-WW_61E65202\COMCTL32.DLL
  (symbol loading deferred)
Module Load: C:\PROGRA~1\SOPHOS\SOPHOS~1\SOPHOS~1.DLL  (symbol loading
deferred)
Module Load: C:\OPT\DMD\WINDOWS\BIN\LINK.EXE  (no symbols loaded)
First chance exception c0000005 (Unknown) occurred
Thread stopped.

 r


EAX=0012f884  EBX=0012f8c0  ECX=0000004c  EDX=1001890c  ESI=7ffddc00
EDI=00000104
EIP=00000000  ESP=0012f864  EBP=0012f89c  EFL=00010212
CS=001b  DS=0023  ES=0023  SS=0023  FS=003b  GS=0000

 s+
 ln


No symbol found

 k


0012f860  10007967  0x00000000
0012f89c  1000637d  0x10007967
0012fadc  7c8138b7  0x1000637d
0012fd70  00428ed3  0x7c8138b7
0012fd94  00140000  0x00428ed3
7c94bafc  78b7ffff  0x00140000
fce8c5e9  00000000  0x78b7ffff
Module Load: C:\WINDOWS\SYSTEM32\WXVAULT.DLL  (no symbols loaded)
Module Load: C:\WINDOWS\SYSTEM32\KERNEL32.DLL  (no symbols loaded)

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Sönke Ludwig <sludwig outerproduct.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |sludwig outerproduct.org



PDT ---
I'm also hit by this quite often. Changing random things will make it work or
break it.

This is the disassembly of the offending function:

0x00428d82 c8040000         enter       0004,00
0x00428d86 53               push        ebx
0x00428d87 56               push        esi
0x00428d88 c745fc00000000   mov         dword ptr [ebp-04],00000000
0x00428d8f 8b45fc           mov         eax,dword ptr [ebp-04]
0x00428d92 3b4510           cmp         eax,dword ptr [ebp+10]
0x00428d95 7314             jae         00428dab
0x00428d97 8b4d0c           mov         ecx,dword ptr [ebp+0c]
0x00428d9a 8b55fc           mov         edx,dword ptr [ebp-04]
0x00428d9d 8a1c11           mov         bl,byte ptr [edx+ecx]
0x00428da0 8b7508           mov         esi,dword ptr [ebp+08]
0x00428da3 881c16           mov         byte ptr [edx+esi],bl     <<< Access
Violation
0x00428da6 ff45fc           inc         dword ptr [ebp-04]
0x00428da9 ebe4             jmp         00428d8f
0x00428dab 8b4508           mov         eax,dword ptr [ebp+08]
0x00428dae 5e               pop         esi
0x00428daf 5b               pop         ebx
0x00428db0 c9               leave
0x00428db1 c3               retn

ESI contains 0x028a3cd0 and EDX contains 0x330.

A couple of bytes after [ESI] there comes a very long mangled string:

D921TypeInfo_S4vibe5templ4diet295__T19parseDietFileCompatVAyaa11_73686f775f626f782e6474TC4vibe4http6server17HttpServerRequestVAyaa3_726571TPS5index8show_boxFC4vibe4http6server17HttpServerRequestC4vibe4http6server18HttpServerResponseAyaZv11ShowBoxInfoVAyaa4_696e666fTC8moneybox3api11MoneyBoxApiVAyaa3_617069TAyaVAyaa5_6572726f72Z19parseDietFileCompatFC4vibe6stream6stream12OutputStreamAS3std7variant17__T8VariantNVk20Z8VariantNXv480__T12FilterResultS4284vibe5templ4diet295__T19parseDietFileCompatVAyaa11_73686f775f626f782e6474TC4vibe4http6server17HttpServerRequestVAyaa3_726571TPS5index8show_boxFC4vibe4http6server17HttpServerRequestC4vibe4http6server18HttpServerResponseAyaZv11ShowBoxInfoVAyaa4_696e666fTC8moneybox3api11MoneyBoxApiVAyaa3_617069TAyaVAyaa5_6572726f72Z19parseDietFileCompatFC4vibe6strea

The string is terminated with the end of the memory page, after which there is
no more mapped memory. Looks like a simple buffer overrun.

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14:49:36 MSK ---
*** Issue 7139 has been marked as a duplicate of this issue. ***

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Denis Shelomovskij <verylonglogin.reg gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |verylonglogin.reg gmail.com



14:50:49 MSK ---
There is a (valid, I just checked) testcase attached to Issue 7139.

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Denis Shelomovskij <verylonglogin.reg gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |renezwanenburg gmail.com



14:53:04 MSK ---
*** Issue 8222 has been marked as a duplicate of this issue. ***

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Denis Shelomovskij <verylonglogin.reg gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |blocker



15:03:01 MSK ---
Once can also read Issue 8222 discussion.

P.S.
I decided to make one closed source app in D and was really punished by this
bug. How one can develop application without debugging? The worst thing is that
everything is good until you program grows in size and approximately after a
month of development, when you really need step-by-step debugging, you can't
enable debug info any more. So you are totally f***ed...

How can D be called "stable" in any way having such an inexcusable issues in
its toolchain? I'm a D fan but it is really meanly not to mention about such
things on main dlang.org page.

P.P.S.
Walter has no excuse here as there is a tastcase from David Simcha (attached to
Issue 7139) for more than a year (from 2011-12-20)...

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10:17:18 MSK ---
A possible workaround to enable debug information (which may or may not help)
is to separate part of the project into a library.
Note that this may trigger other link failures which may or may not be easy to
workaround (see Issue 9567 e.g.).

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2013-03-07 15:11:43 MSK ---
Filled meta issue 9660 about debugging problem caused by this issue.

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2013-03-21 13:21:04 MSK ---


 This is the disassembly of the offending function:
 ...



http://deoma-cmd.ru/files/other/images/Optlink-Issue%207139-in-Visual-Studio.png

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Denis Shelomovskij <verylonglogin.reg gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |pull



2013-04-02 16:02:38 MSD ---
I do not understand anything in OPTLINK sources, but:
Addition of `_flush_cvg_temp` in `_output_cv_symbol_align` before failing
`memcpy` call does detrigger Access Violation in OPTLINK (just like for Issue
2436, see `_output_cv_symbol_align` source code).

So here we are:
https://github.com/DigitalMars/optlink/pull/8


Note: produced executable from test case from David Simcha's Issue 7139 will
link but fail to launch complaining "This is not Win32 executable" as it
contains unresolved symbols.

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10:54:56 PDT ---
Is the seg fault on the read of the source, or the write of the destination?
And what is the value of the source/destination (i.e. is it obviously not a
valid pointer)?

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2013-04-03 10:40:23 MSD ---


 Is the seg fault on the read of the source, or the write of the destination?
 And what is the value of the source/destination (i.e. is it obviously not a
 valid pointer)?


On the write of the destination of course, just like Issue 2436 or how
otherwise flushing CVG temp could solve this?. I also don't understand, why you
can't just launch David Simcha's testcase in Visual Studio and see all info

is here for already two weeks without any attention)?

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Walter Bright <bugzilla digitalmars.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
            Version|D2                          |D1 & D2
         Resolution|                            |FIXED



02:46:17 PDT ---
https://github.com/DigitalMars/optlink/commit/38c8ee3ca1e80c88d56bf494962585d7e1db00c0

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02:55:43 PDT ---
You can pick up a binary with this fix for the moment at:

http://ftp.digitalmars.com/optlink.zip

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