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> IDE Development > fasmw 1.69.24 crashes on replacement, cannot reproduce bug |
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edemko
ollydbg's window:
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26 Oct 2010, 12:30 |
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ouadji
Code: UNDO.INC -------- or esi,esi jz segment_for_undo_done mov ebx,[esi] mov eax,[esp+4] call prepare_slot_for_undo_storage jc segment_for_undo_done push edi call allocate_segment pop edi mov ebx,eax stosd mov eax,[esp+4] stosd jc memory_shortage mov esi,eax mov edi,ebx mov ecx,SEGMENT_LENGTH shr 2 rep movsd ;<----------------------------- line 61 segment_for_undo_done: popa store_segment_for_undo_ok: retn prepare_slot_for_undo_storage: mov esi,[undo_data] mov esi,[esi] mov ecx,[esi+4] lea edi,[esi+8] repne scasd jne get_free_slot stc retn get_free_slot: mov ecx,[esi+4] lea edi,[esi+8+ecx*8] inc ecx cmp ecx,SEGMENT_DATA_LENGTH/8 jbe slot_ok push esi call allocate_segment _________________ I am not young enough to know everything (Oscar Wilde)-  |
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26 Oct 2010, 14:45 |
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edemko
mention
before the bug: mov ecx,$40 after the bug: ecx=$40 after the bug: edi=ebx=$700 |
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26 Oct 2010, 14:54 |
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edemko
seems you are missing stack somewhere
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26 Oct 2010, 14:57 |
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Tomasz Grysztar
ouadji: I know where it is, but that is not the problem. The difficulty comes from the fact that this is most probably result of data corruption that occured elsewhere, maybe even at different time.
edemko: it is $D00700, not $700. |
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26 Oct 2010, 15:44 |
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revolution
It could be because of something like this
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26 Oct 2010, 15:58 |
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edemko
we have wireless modem right on the system unit
i've had "unresolved" situations many times suspecting all but myself and finally myself was the fault 
our pc was grounded, memory was ok, tv was off, sound was on, edemko was smiling |
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26 Oct 2010, 17:52 |
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ouadji
Quote: The difficulty comes from the fact that this is most probably result _________________ I am not young enough to know everything (Oscar Wilde)- |
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26 Oct 2010, 18:59 |
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edemko
composing a stub i was lighted with cosmic rays:
recompile all your software, people: Code: ;1 passes, 0 bytes ;dw ? ;1 passes, 0 bytes ;dw ?,? ;1 passes, 0 bytes ;dw ? ;dw ? ;1 passes, 2 bytes ;dw 0 ;1 passes, 4 bytes ;dw ?,0 ;1 passes, 2 bytes ;dw 0,? ;1 passes, 0 bytes ;db ? ;dw ? ;dd ? ;dq ? |
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27 Oct 2010, 18:42 |
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ouadji
Code: A) mov ax,[toto] toto dw ?,? B) xor al,al mov [bop-1],al toto db 1000 dup ? bop: A) 2 passes 3 bytes A) 2 passes 5 bytes 
Tomasz, this is not quite normal i think ? your view ? _________________ I am not young enough to know everything (Oscar Wilde)- |
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27 Oct 2010, 21:02 |
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Fanael
ouadji wrote: this is not quite normal i think ? |
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28 Oct 2010, 09:03 |
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idle
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31 Jan 2011, 10:56 |
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