Re: exited due to signal 10 (SIGBUS).
Re: exited due to signal 10 (SIGBUS).
- Subject: Re: exited due to signal 10 (SIGBUS).
- From: Art Isbell <email@hidden>
- Date: Wed, 25 Jul 2001 14:36:10 -1000
On Wednesday, July 25, 2001, at 01:57 PM, Rosyna wrote:
Steps out of my functions completely, then starts doing something else,
which I have provided the backtrace for:
(gdb) bt
#0 0x73f2495c in aeSuspendTheCurrentEvent ()
#1 0x73f24318 in aeResumeTheCurrentEvent ()
#2 0x73f22010 in aeReallyProcessAppleEvent ()
#3 0x73f21ae8 in aeProcessAppleEvent ()
#4 0x737dd600 in AEProcessAppleEvent ()
#5 0x70d75b48 in _DPSNextEvent ()
#6 0x70d756e8 in -[NSApplication
nextEventMatchingMask:untilDate:inMode:dequeue:] ()
#7 0x70d7546c in -[NSApplication run] ()
#8 0x70d9799c in NSApplicationMain ()
#9 0x00003e24 in main (argc=1, argv=0xbffffd3c) at
main.m:19/Users/rosyna/MyFirstProject/
#10 0x00003d18 in _start ()
#11 0x00003b58 in start ()
Looks like this problem is occurring as the next event is being
processed. But what sort of problem isn't obvious from the backtrace.
A bus error can be due to a memory problem, so I'd try running the
process with the environment variable NSZombieEnabled set to YES. From
Foundation's NSDebug.h:
FOUNDATION_EXPORT BOOL NSZombieEnabled;
// Enable object zombies. When an object is deallocated, its isa
// pointer is modified to be that of a "zombie" class (whether or
// not the storage is then freed can be controlled by the
// NSDeallocateZombies variable). Messages sent to the zombie
// object cause logged messages and can be broken on in a debugger.
// The default is NO.
This can be set in Project Builder by selecting the target, and then the
Executables tab in the lower right quadrant, and then the Env Vars tab.
When running the process under the debugger, and looking at the
debugger console, a message about which function to break on when a
message is sent to a freed object should be displayed. This can
establish whether a message is being sent to a freed object and if so,
the class of the freed object.
Art Isbell
Apple iServices Technical Support
http://www.apple.com/iservices/webobjectssupport/
+1-808-591-0836