Hi Ryan,
I have uploaded a complete log here:
http://sourceforge.net/tracker/index.php?func=detail&aid=1027805&group_id=49784&atid=457447
The other thing is that you can try patching the conditional jump immediately after that comparison that never succeeds: c316:9036 F64408FF test [si+0x8],0xff c316:903a 7408 je 9044
how do i "patch" this jump?
From: Ryan Underwood <[EMAIL PROTECTED]> To: anon permutation <[EMAIL PROTECTED]> CC: [EMAIL PROTECTED] Subject: Re: Dos App hangs with DPMI / PIC problem Date: Fri, 10 Sep 2004 11:16:25 -0500
> Ryan, the dos app was designed for running on a MS-DOS machine that has no
> Windows on it. Since it is not meant for Linux, the vendor is not willing
> to support me in any way...
Maybe you should make some noise to his competitors...
> I also tried to attach dosdebug to dosemu before I start the Dos App. I
> was told that dosdebug will give a lot more information on the problem this
> way. However, dosdebug did not give me any extra info when the Dosemu hang.
>
> Thank you for helping me. What else can I try?
Well, the first thing I'm wondering is what int you are inside of in that trace. Eventually it does iret, but there was never an int that I can see. Was part of the trace omitted?
The other thing is that you can try patching the conditional jump immediately after that comparison that never succeeds: c316:9036 F64408FF test [si+0x8],0xff c316:903a 7408 je 9044
The op code for jmp 9044 is EB08. This will at least get you past this while (foo != -1) situation, but it might just loop again or crash afterwards. You could also try printing the value at the memory location si+0x8 when you arrive at that instruction to see if it ever changes.
-- Ryan Underwood, <[EMAIL PROTECTED]> - To unsubscribe from this list: send the line "unsubscribe linux-msdos" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
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