id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
87	Cascading trap on exit	Gregg Young	Gregg Young	"This happens randomly and not very frequently. Initial analysis from Steven which matches mine:
Based on the .trp file I think this is the first dispatch of the exception
handle:

 00D49A58  1FFC9E69   DOSCALL1  0002:00009E69  between
DOS32R3EXCEPTIONDISPATCHER + 151 and _xcptR3ExceptionDispatcher - 23

and this is the return from the routine that trapped:

 00D49A68  00070053   EFTEPM    0002:00050053  between NewCommand_CurPos +
28D3 and ProcessConfigFile - 31D

My build differs from yours, so you need to do the map using your .obj and
..map files.

From the trap, the offset in the map to NewCommand_CurPos should be:

 NewCommand_CurPos = 00070053 - 28D3 = 6d780 - 20000 = 2:4d780

You need to verify this.

The offset in the map to the address found on the stack is:

 map offset = 70053 - 20000 = 2:50053

 My map out of sync with your .trp file, but yours should look like:

 0002:0004d780       NewCommand_CurPos
 0002:00050370       ProcessConfigFile (maybe)

On my cfte.lst from wdis -l -s cfte.obj, I have

 0E10				int near NewCommand( _CurPos near &, char const near * ):

Adding the offset from the .trp file, we get

 wdis offset = E10 + 28D3 = 36e3

Searching for this offset in cfte.lst, I find:

 3640				int near PreprocessConfigFile( _CurPos near & ):

and

 36DD  E8 00 00 00 00			call		strncmp_
 36E2  85 C0				test		eax,eax
 36E4  0F 85 6A 00 00 00			jne		L$453

which does not match exactly, but implies that the strncmp in
PreprocessConfigFile call might have trapped.

This is most likely:

 cfte.cpp:1909
	    if (cp.c + 8 < cp.z && strncmp(cp.c, ""%define("", 8) == 0) {

If this is what triggered the trap, then cp.c is borked.

Let me know what you find using your .map and wdis.

FWIW, I'm somewhat expected there to be 2 trap reports in the .trp file,
but this did not happen.

Note the trp file and the dumps I have don't match up very well. I have 13 dump files from this event. "	defect	closed	major	Release_1.1	eFTEPM	Release_1.0	fixed