site_archiver@lists.apple.com Delivered-To: darwin-dev@lists.apple.com is throwing errors in Mac OS Leopard and crashes. Exception Type: EXC_BREAKPOINT (SIGTRAP) Exception Codes: 0x0000000000000002, 0x0000000000000000 Application Specific Information: *** single-threaded process forked *** Thread 0 Crashed: 4 Autopoll 0x00002623 main + 109 5 Autopoll 0x0000259a _start + 216 6 Autopoll 0x000024c1 start + 41 Eric _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.appl... On Nov 20, 2007, at 12:24 AM, Elango C wrote: I have created the Daemon which will sense the USB device arrival and removal during the system startup / Login. The same application works fine in Mac OS Tiger (10.4) but the same application [...] [...] 0 com.apple.CoreFoundation 0x00b57119 CFRunLoopRunSpecific + 1833 1 com.apple.CoreFoundation 0x00b57d94 CFRunLoopRun + 84 2 Autopoll 0x00002cdb -[MyAutopoll registerDeviceCallbackHandler] + 522 3 Autopoll 0x000026e8 -[MyAutopoll init] + 114 Are you fork()'ing that process and attempting to use CF-level functionality in the fork child ? This is not supported, and in 10.5 some checks have been added to error out if CF is used in a fork child. For daemons/agents started via launchd, forking (or using daemon()) should be unnecessary. If there is a good reason for creating a new process, you'll have to exec or posix_spawn() the executable. This email sent to site_archiver@lists.apple.com