Re: [coLinux-users] coLinux daemon program crash (colinux-slirp-net-daemon)

[Shai V. <sva...@gm...>]

Hi Henry,

I've caused this to happen several times and it seems that the crash
happens at the same point (i.e., same IP, same call stack, same
disassembly location, etc.)

Call stack:
COLINUX-SLIRP-NET-DAEMON! 00402b90()
COLINUX-SLIRP-NET-DAEMON! 004089db()
COLINUX-SLIRP-NET-DAEMON! 00401d77()
COLINUX-SLIRP-NET-DAEMON! 0040130d()
COLINUX-SLIRP-NET-DAEMON! 00401247()
COLINUX-SLIRP-NET-DAEMON! 00401298()
KERNEL32! 7c817067()

Registers:
EAX = 00000001 EBX = 00000002
 ECX = 77C2C2E3 EDX = 00030608
 ESI = 0051B03C EDI = 005143E0
 EIP = 00402B90 ESP = 0023FA20
 EBP = 0023FA98 EFL = 00000246
 MM0 = 0000000000000000
 MM1 = 0000000000000000
 MM2 = 0000000000000000
 MM3 = 0000000000000000
 MM4 = 0000000000000000
 MM5 = 0000003800000000
 MM6 = 0000000000000000
 MM7 = 004012A000000000
 XMM0 = 00000000000000000000000000000000
 XMM1 = 00000000000000000000000000000000
 XMM2 = 00000000000000000000000000000000
 XMM3 = 00000000000000000000000000000000
 XMM4 = 00000000000000000000000000000000
 XMM5 = 00000000000000000000000000000000
 XMM6 = 00000000000000000000000000000000
 XMM7 = 00000000000000000000000000000000
 CS = 001B DS = 0023 ES = 0023 SS = 0023
 FS = 003B GS = 0000 OV=0 UP=0 EI=1 PL=0
 ZR=1 AC=0 PE=1 CY=0

 0051B046 = ????


 XMM0DL = +0.00000000000000E+000
 XMM0DH = +0.00000000000000E+000
 XMM1DL = +0.00000000000000E+000
 XMM1DH = +0.00000000000000E+000
 XMM2DL = +0.00000000000000E+000
 XMM2DH = +0.00000000000000E+000
 XMM3DL = +0.00000000000000E+000
 XMM3DH = +0.00000000000000E+000
 XMM4DL = +0.00000000000000E+000
 XMM4DH = +0.00000000000000E+000
 XMM5DL = +0.00000000000000E+000
 XMM5DH = +0.00000000000000E+000
 XMM6DL = +0.00000000000000E+000
 XMM6DH = +0.00000000000000E+000
 XMM7DL = +0.00000000000000E+000
 XMM7DH = +0.00000000000000E+000
 XMM00 = +0.00000E+000
 XMM01 = +0.00000E+000
 XMM02 = +0.00000E+000
 XMM03 = +0.00000E+000
 XMM10 = +0.00000E+000
 XMM11 = +0.00000E+000
 XMM12 = +0.00000E+000
 XMM13 = +0.00000E+000
 XMM20 = +0.00000E+000
 XMM21 = +0.00000E+000
 XMM22 = +0.00000E+000
 XMM23 = +0.00000E+000
 XMM30 = +0.00000E+000
 XMM31 = +0.00000E+000
 XMM32 = +0.00000E+000
 XMM33 = +0.00000E+000
 XMM40 = +0.00000E+000
 XMM41 = +0.00000E+000
 XMM42 = +0.00000E+000
 XMM43 = +0.00000E+000
 XMM50 = +0.00000E+000
 XMM51 = +0.00000E+000
 XMM52 = +0.00000E+000
 XMM53 = +0.00000E+000
 XMM60 = +0.00000E+000
 XMM61 = +0.00000E+000
 XMM62 = +0.00000E+000
 XMM63 = +0.00000E+000
 XMM70 = +0.00000E+000
 XMM71 = +0.00000E+000
 XMM72 = +0.00000E+000
 XMM73 = +0.00000E+000 MXCSR = 00001F80
 ST0 = +0.00000000000000000e+0000
 ST1 = +0.00000000000000000e+0000
 ST2 = +0.00000000000000000e+0000
 ST3 = +0.00000000000000000e+0000
 ST4 = +0.00000000000000000e+0000
 ST5 = +0.00000000000000000e+0000
 ST6 = +0.00000000000000000e+0000
 ST7 = +0.00000000000000000e+0000
 CTRL = 037F STAT = 0000 TAGS = FFFF
 EIP = 00000000
 CS = 0000 DS = 0000 EDO = 00000000

Disassembly (current location is 00402B90, I've added a few lines
before as well).
00402B66   je          00402B90
00402B68   mov         ecx,dword ptr [ebp-30h]
00402B6B   cmp         word ptr [ecx+8],9
00402B70   jle         00402D67
00402B76   mov         edi,dword ptr [ebp-30h]
00402B79   mov         eax,dword ptr [edi+8]
00402B7C   sub         eax,3
00402B7F   cmp         ax,7
00402B83   jbe         00402D5D
00402B89   lea         esi,[esi]
---> 00402B90   movzx       eax,word ptr [esi+0Ah]
00402B94   dec         eax
00402B95   cmp         ax,4
00402B99   ja          00402BA5
00402B9B   cmp         byte ptr [esi+28h],1Bh
00402B9F   je          00402D8B
00402BA5   mov         eax,dword ptr [ebp-4Ch]
00402BA8   test        eax,eax
00402BAA   jne         00402BB9
00402BAC   mov         ecx,dword ptr [ebp-30h]
00402BAF   test        byte ptr [ecx+1Ch],1
00402BB3   je          004029E2
00402BB9   mov         ebx,dword ptr [ebp-30h]
00402BBC   mov         dword ptr [ebp+8],ebx
00402BBF   lea         esp,[ebp-0Ch]
00402BC2   pop         ebx
00402BC3   pop         esi
00402BC4   pop         edi
00402BC5   pop         ebp
00402BC6   jmp         00406460
00402BCB   mov         ebx,dword ptr [ebp-30h]
00402BCE   movsx       edx,word ptr [ebx+8]
00402BD2   cmp         dx,9
00402BD6   jg          00402B4E
00402BDC   mov         eax,dword ptr [esi+18h]
00402BDF   cmp         eax,dword ptr [ebx+6Ch]
00402BE2   jne         00402BEC
00402BE4   cmp         dword ptr [ebx],ebx
00402BE6   je          004031AE
00402BEC   mov         ebx,dword ptr [ebp-68h]
00402BEF   sub         esp,4
00402BF2   push        ebx
00402BF3   push        esi

The exception is an access violation.
Thanks,
- Shai

On Sun, Feb 1, 2009 at 8:47 PM, Henry Nestler <hen...@ar...> wrote:
> Hello Shai,
>
> Shai Vaingast wrote:
>>
>> I've been using coLinux for quite some time now without any issues.
>> Lately, I've run into problems that cause coLinux to report a "coLinux
>> daemon program has encountered a problem and needs to close. We are
>> sorry for ...."  When I press Debug, VC opens up with
>> "colinux-slirp-net-daemon" diassembly.
>
> So, you have a debugger, that would be nice you give us the instruction
> pointer (IP) on the crash point. Please copy the first 3 lines from the
> assembler output and post it here.
> Additional a stack-backtrace of this task and the register dump would be
> nice.
>
> --
> Henry N.
>