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Index > IDE Development > FASMW esi=07 bug!

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comrade



Joined: 16 Jun 2003
Posts: 1137
Location: Russian Federation
comrade
I experienced the same bug that happened in FASMW v1.46 on lodsb when esi=07 with newest FASMW v1.46.9.4!
Code:
State Dump for Thread Id 0x49c

eax=00000007 ebx=0041b61b ecx=00000100 edx=00000000 esi=00000007 edi=00406320
eip=0040c85b esp=0006fe20 ebp=0006fe2c iopl=0         nv up ei pl zr na po nc
cs=001b  ss=0023  ds=0023  es=0023  fs=0038  gs=0000             efl=00000246


function: <nosymbols>
        0040c83f c21400           ret     0x14
        0040c842 c8000000         enter   0x0,0x0
        0040c846 53               push    ebx
        0040c847 56               push    esi
        0040c848 57               push    edi
        0040c849 8b7508           mov     esi,[ebp+0x8]          ss:00b0d3fe=????????
        0040c84c 8b7d0c           mov     edi,[ebp+0xc]          ss:00b0d3fe=????????
        0040c84f bb1bb64100       mov     ebx,0x41b61b
        0040c854 b900010000       mov     ecx,0x100
        0040c859 31d2             xor     edx,edx
FAULT ->0040c85b ac               lodsb                                ds:00000007=??
        0040c85c 3c20             cmp     al,0x20
        0040c85e 7434             jz      00410494
        0040c860 3c3b             cmp     al,0x3b
        0040c862 0f8481000000     je      0040c8e9
        0040c868 88c4             mov     ah,al
        0040c86a d7               xlat
        0040c86b 08c0             or      al,al
        0040c86d 7454             jz      0040d1c3
        0040c86f 09d2             or      edx,edx
        0040c871 7519             jnz     0041488c
        0040c873 80fc27           cmp     ah,0x27

*----> Stack Back Trace <----*

FramePtr ReturnAd Param#1  Param#2  Param#3  Param#4  Function Name
0006FE2C 00408FE6 00000007 00406320 00C30288 00000019 !<nosymbols> 
0006FF00 77E12E98 006003E0 00000100 00000026 01480001 !<nosymbols> 
0006FF20 77E130E0 00407000 006003E0 00000100 00000026 user32!ScrollDC 
0006FFAC 77E15824 00405FA0 00000001 00409ED8 00405FA0 user32!ScrollDC 
0006FFF0 00000000 00409C7C 00000000 000000C8 00000100 user32!DispatchMessageA 

*----> Raw Stack Dump <----*
0006fe20  20 64 40 00 ff ff ff ff - 28 0e c3 00 00 ff 06 00   d@.....(.......
0006fe30  e6 8f 40 00 07 00 00 00 - 20 63 40 00 88 02 c3 00  ..@..... c@.....
0006fe40  19 00 00 00 e8 0b c3 00 - b8 8b 40 00 50 95 07 00  ..........@.P...
0006fe50  a0 5f 40 00 a8 5f 40 00 - 00 00 00 c0 00 00 79 00  ._@.._@.......y.
0006fe60  35 01 30 50 08 01 79 00 - c3 00 00 00 98 d9 f3 00  5.0P..y.........
0006fe70  06 00 00 00 8e 00 00 00 - 18 87 79 00 00 00 00 00  ..........y.....
0006fe80  83 00 00 00 00 00 00 00 - 06 00 00 00 8f 00 00 00  ................
0006fe90  00 00 00 00 77 0c 0a a0 - 07 00 00 00 0e 00 00 00  ....w...........
0006fea0  1e 00 00 00 48 00 c3 00 - 60 00 00 00 1f 00 00 00  ....H...`.......
0006feb0  ff ff ff 00 00 00 00 00 - 00 16 2d 00 ff ff ff 00  ..........-.....
0006fec0  42 c8 40 00 c8 13 40 00 - e8 04 f4 00 00 08 f4 00  B.@...@.........
0006fed0  00 08 7a 00 58 f2 79 00 - 00 00 00 00 00 00 00 00  ..z.X.y.........
0006fee0  2a 00 00 00 9a 00 00 00 - 00 00 00 ff 7e fb e1 77  *...........~..w
0006fef0  00 00 00 00 26 00 00 00 - 01 00 48 01 00 b6 00 04  ....&.....H.....
0006ff00  20 ff 06 00 98 2e e1 77 - e0 03 60 00 00 01 00 00   ......w..`.....
0006ff10  26 00 00 00 01 00 48 01 - a8 5f 40 00 cd ab ba dc  &.....H.._@.....
0006ff20  ac ff 06 00 e0 30 e1 77 - 00 70 40 00 e0 03 60 00  .....0.w.p@...`.
0006ff30  00 01 00 00 26 00 00 00 - 01 00 48 01 1b b6 41 00  ....&.....H...A.
0006ff40  a2 0f 41 00 00 00 00 00 - 74 ff 06 00 01 00 48 01  ..A.....t.....H.
0006ff50  58 4a e2 77 00 00 00 00 - 00 00 00 00 04 00 00 00  XJ.w............

State Dump for Thread Id 0x4f8

eax=77d50c62 ebx=00c35798 ecx=00c35654 edx=00000000 esi=00c35698 edi=00000100
eip=77f82a84 esp=00d4fe28 ebp=00d4ff74 iopl=0         nv up ei pl nz na pe nc
cs=001b  ss=0023  ds=0023  es=0023  fs=0038  gs=0000             efl=00000202


function: ZwReplyWaitReceivePortEx
        77f82a79 b8ac000000       mov     eax,0xac
        77f82a7e 8d542404         lea     edx,[esp+0x4]          ss:017ed3fb=????????
        77f82a82 cd2e             int     2e
        77f82a84 c21400           ret     0x14

*----> Stack Back Trace <----*

FramePtr ReturnAd Param#1  Param#2  Param#3  Param#4  Function Name
00D4FF74 77D50781 77D50D7F 00C35698 00000000 40C351A4 ntdll!ZwReplyWaitReceivePortEx 
00D4FFA8 77D50C7A 0007F590 00D4FFEC 77E8758A 00C35798 rpcrt4!RpcBindingSetOption 
00D4FFB4 77E8758A 00C35798 00000000 40C351A4 00C35798 rpcrt4!RpcBindingSetOption 
00D4FFEC 00000000 77D50C62 00C35798 00000000 00905A4D kernel32!SetFilePointer 

*----> Raw Stack Dump <----*
00d4fe28  2d 09 d5 77 00 01 00 00 - 54 ff d4 00 00 00 00 00  -..w....T.......
00d4fe38  58 7d c3 00 58 ff d4 00 - f0 c0 07 00 90 f5 07 00  X}..X...........
00d4fe48  98 57 c3 00 d0 0c 45 80 - 34 00 00 c0 40 df 47 81  .W....E.4...@.G.
00d4fe58  71 36 4a 80 98 88 00 e1 - b0 3c a1 be 98 88 00 e1  q6J......<......
00d4fe68  00 00 00 00 00 00 00 00 - 46 02 00 00 68 10 45 80  ........F...h.E.
00d4fe78  01 00 00 00 40 df 47 81 - 00 00 00 00 10 00 f8 00  ....@.G.........
00d4fe88  0a df 12 81 7c 00 f8 00 - 1a df 12 81 88 1e 48 81  ....|.........H.
00d4fe98  98 88 00 e1 00 00 00 00 - 1f 00 00 00 f0 1e 48 81  ..............H.
00d4fea8  f0 1e 48 81 00 00 00 00 - 01 00 00 00 10 3c a1 be  ..H..........<..
00d4feb8  00 00 00 00 f8 d8 4a e2 - d4 3b a1 be 00 00 00 00  ......J..;......
00d4fec8  91 4e 41 80 f0 1f 48 81 - 40 df 47 81 c4 3c a1 be  .NA...H.@.G..<..
00d4fed8  a8 04 45 80 04 00 00 00 - 08 df 12 81 97 db 49 80  ..E...........I.
00d4fee8  80 f3 12 00 00 00 00 00 - 48 f3 12 00 d5 82 42 00  ........H.....B.
00d4fef8  00 00 00 00 00 00 00 00 - 01 00 00 00 19 00 02 00  ................
00d4ff08  64 27 50 c0 7a 00 00 00 - 00 00 00 00 00 00 00 00  d'P.z...........
00d4ff18  7a 00 00 00 01 00 00 00 - 00 20 50 c0 40 db 1a 81  z........ P.@...
00d4ff28  00 14 17 81 a0 eb 0c 81 - 20 b0 11 81 00 00 00 00  ........ .......
00d4ff38  b0 b1 11 81 60 3c a1 be - 46 02 00 00 ec d8 42 80  ....`<..F.....B.
00d4ff48  c0 95 06 80 80 b1 11 81 - 20 b0 11 81 00 20 50 c0  ........ .... P.
00d4ff58  00 a2 2f 4d ff ff ff ff - 50 fe d4 00 ff ff ff ff  ../M....P.......    

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comrade (comrade64@live.com; http://comrade.ownz.com/)
Post 23 Jun 2003, 23:05
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Tomasz Grysztar
Assembly Artist


Joined: 16 Jun 2003
Posts: 7713
Location: Kraków, Poland
Tomasz Grysztar
But it must be caused by some other bug, esi=7 just means that pointer to line was invalid (-1, 8 is added to get pointer to line characters data). I'll check it later.
Post 23 Jun 2003, 23:34
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comrade



Joined: 16 Jun 2003
Posts: 1137
Location: Russian Federation
comrade
Just as strange as previous one - I was typing and suddenly crash.

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comrade (comrade64@live.com; http://comrade.ownz.com/)
Post 24 Jun 2003, 01:39
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