You should google EXC_GUARD, it’s interesting. 0x40000002000000fe
the 02 in the middle says the guard is in dup(), which it is. The 0xfe at the end tells you what file descriptor it’s on. (0xfe .. really, seems unusually if not impossibly large for a file descriptor, you got that many files open?). That next bit 0x00007fa94044b9e0 is the magic number for that particular guard and how you decode that I have no idea. There’s a suggestion that may be a pointer/object reference. So things which might cause this are using a file descriptor you gave to GCD to manage outside any context GCD gives it back to you to manage yourself. Using a close()d file descriptor which has then been re-openen by something else which ‘guards’ it. I initially wondered if there was a block invoke on a block which had been released. Have you gone back to non-ARC again? Or it’s a framework bug. > On 5 Feb 2015, at 9:00 am, Graham Cox <graham....@bigpond.com> wrote: > > Anyone seen this? My fault, or...? > > OS Version: Mac OS X 10.10.2 (14C109) > Report Version: 11 > Anonymous UUID: 41C0442D-1002-83C7-8C29-1DCC8E683B2F > > Sleep/Wake UUID: 5DE82D59-D0D8-4695-A86E-23F6ABBFAEAB > > Time Awake Since Boot: 300000 seconds > Time Since Wake: 6200 seconds > > Crashed Thread: 7 Dispatch queue: > com.apple.networking.connection.0x7fa940613300 > > Exception Type: EXC_GUARD > Exception Codes: 0x40000002000000fe, 0x00007fa94044b9e0 > > > Thread 7 Crashed:: Dispatch queue: > com.apple.networking.connection.0x7fa940613300 > 0 libsystem_kernel.dylib 0x00007fff83900c1a dup + 10 > 1 libsystem_network.dylib 0x00007fff86cbb3d5 > __tcp_connection_get_socket_block_invoke + 60 > 2 libdispatch.dylib 0x00007fff896f1c13 > _dispatch_client_callout + 8 > 3 libdispatch.dylib 0x00007fff896f2e5e > _dispatch_barrier_sync_f_invoke + 57 > 4 libsystem_network.dylib 0x00007fff86cbb336 > tcp_connection_get_socket + 135 > 5 com.apple.CFNetwork 0x00007fff8658e018 > SocketStream::_onqueue_completeTCPConnection0(dispatch_data_s*) + 160 > 6 com.apple.CFNetwork 0x00007fff8658e786 > ___ZN12SocketStream30_onqueue_completeTCPConnectionEv_block_invoke_2 + 129 > 7 libdispatch.dylib 0x00007fff896f6323 > _dispatch_call_block_and_release + 12 > 8 libdispatch.dylib 0x00007fff896f1c13 > _dispatch_client_callout + 8 > 9 libdispatch.dylib 0x00007fff896f5365 > _dispatch_queue_drain + 1100 > 10 libdispatch.dylib 0x00007fff896f6ecc > _dispatch_queue_invoke + 202 > 11 libdispatch.dylib 0x00007fff896f46b7 > _dispatch_root_queue_drain + 463 > 12 libdispatch.dylib 0x00007fff89702fe4 > _dispatch_worker_thread3 + 91 > 13 libsystem_pthread.dylib 0x00007fff86028637 _pthread_wqthread + > 729 > 14 libsystem_pthread.dylib 0x00007fff8602640d start_wqthread + 13 > > > --Graham > _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
