Apple

Exception Type: EXC_BAD_ACCESS (SIGBUS)

Exception Codes: KERN_PROTECTION_FAILURE at 0x000000000000001e

Crashed Thread: 0

Thread 0 Crashed:

0 com.apple.AE 0x928306fb aeDispatchAppleEvent(AEDesc const*, AEDesc*, unsigned long, unsigned char*) + 323

1 ??? 0x00000003 0 + 3

2 ??? 0x0000001e 0 + 30

Thread 0 crashed with X86 Thread State (32-bit):

eax: 0x0000001e ebx: 0x928305ce ecx: 0x00000000 edx: 0x00000000

edi: 0x00000000 esi: 0xa03c2060 ebp: 0xbffff0c8 esp: 0xbffff080

ss: 0x0000001f efl: 0x00010206 eip: 0x928306fb cs: 0x00000017

ds: 0x0000001f es: 0x0000001f fs: 0x00000000 gs: 0x00000037

cr2: 0x0000001e

So it looks like a corrupted stack problem..

How does one go about diagnosing these kind of bugs? I already made .gdbinit file and put the following in it:

////////////////////////////////////////////////////

define checkheap

set env MallocCheckHeapStart 1

set env MallocCheckHeapEach 500

end

define mallocguard

set env MallocGuardEdges 1

set env MallocCheckHeapAbort 1

set env MallocBadFreeAbort 1

end

define guard

set env DYLD_FORCE_FLAT_NAMESPACE 1

set env DYLD_INSERT_LIBRARIES /usr/lib/libgmalloc.B.dylib

end

define guard-before

set env MALLOC_PROTECT_BEFORE 1

end

define guard-strict

set env MALLOC_STRING_SIZE 1

end

define maxguard

guard

guard-before

guard-strict

end

////////////////////////////////////////////////////

When the crash happens the app just goes poof and in gdb I don't get any helpful info at all.

Are there more extensive ways to configure gdb to catch stack problems?

Thanks,,

Tom McHale