#540: segfault with NSURLDownload with GC on
-------------------------------------+--------------------------------------
Reporter: mattaimone...@… | Owner: mattaimone...@…
Type: defect | Status: new
Priority: major | Milestone: MacRuby 0.5
Component: MacRuby | Keywords:
-------------------------------------+--------------------------------------
Script:
https://gist.github.com/96954a4e59f1293977c0
Backtrace:
{{{
Application Specific Information:
objc_msgSend() selector name: _downloadActive
objc[74889]: garbage collection is ON
Thread 0 Crashed: Dispatch queue: com.apple.main-thread
0 libobjc.A.dylib 0x00007fff8821011c objc_msgSend +
40
1 com.apple.Foundation 0x00007fff84db156d
_NSURLDownloadDidReceiveData + 45
2 com.apple.CFNetwork 0x00007fff8143b50f
URLDownload::sendClientDidReceiveData(long, long, long) + 83
3 com.apple.CFNetwork 0x00007fff8143cd9c
___asyncWrite_block_invoke_4 + 121
4 com.apple.CoreFoundation 0x00007fff8060c1b9
__CFRunLoopDoBlocks + 297
5 com.apple.CoreFoundation 0x00007fff805cece6 __CFRunLoopRun
+ 3046
6 com.apple.CoreFoundation 0x00007fff805cdc2f
CFRunLoopRunSpecific + 575
7 com.apple.Foundation 0x00007fff84c94a24
-[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 270
8 com.apple.Foundation 0x00007fff84ce048a
-[NSRunLoop(NSRunLoop) runUntilDate:] + 78
9 ??? 0x00000001011005fc 0 + 4312794620
Thread 1: Dispatch queue: com.apple.libdispatch-manager
0 libSystem.B.dylib 0x00007fff8650cbba kevent + 10
1 libSystem.B.dylib 0x00007fff8650ea85
_dispatch_mgr_invoke + 154
2 libSystem.B.dylib 0x00007fff8650e75c
_dispatch_queue_invoke + 185
3 libSystem.B.dylib 0x00007fff8650e286
_dispatch_worker_thread2 + 244
4 libSystem.B.dylib 0x00007fff8650dbb8
_pthread_wqthread + 353
5 libSystem.B.dylib 0x00007fff8650da55 start_wqthread
+ 13
Thread 2:
0 libSystem.B.dylib 0x00007fff8650d9da
__workq_kernreturn + 10
1 libSystem.B.dylib 0x00007fff8650ddec
_pthread_wqthread + 917
2 libSystem.B.dylib 0x00007fff8650da55 start_wqthread
+ 13
Thread 3:
0 libSystem.B.dylib 0x00007fff8650d9da
__workq_kernreturn + 10
1 libSystem.B.dylib 0x00007fff8650ddec
_pthread_wqthread + 917
2 libSystem.B.dylib 0x00007fff8650da55 start_wqthread
+ 13
Thread 4:
0 libSystem.B.dylib 0x00007fff864f3e3a mach_msg_trap +
10
1 libSystem.B.dylib 0x00007fff864f44ad mach_msg + 59
2 com.apple.CoreFoundation 0x00007fff805ce7a2 __CFRunLoopRun
+ 1698
3 com.apple.CoreFoundation 0x00007fff805cdc2f
CFRunLoopRunSpecific + 575
4 com.apple.Foundation 0x00007fff84cd94cf
+[NSURLConnection(NSURLConnectionReallyInternal) _resourceLoadLoop:] + 297
5 com.apple.Foundation 0x00007fff84c59e99
__NSThread__main__ + 1429
6 libSystem.B.dylib 0x00007fff8652cf8e _pthread_start
+ 331
7 libSystem.B.dylib 0x00007fff8652ce41 thread_start +
13
Thread 5:
0 libSystem.B.dylib 0x00007fff8650d9da
__workq_kernreturn + 10
1 libSystem.B.dylib 0x00007fff8650ddec
_pthread_wqthread + 917
2 libSystem.B.dylib 0x00007fff8650da55 start_wqthread
+ 13
Thread 6:
0 libSystem.B.dylib 0x00007fff865379e2
select$DARWIN_EXTSN + 10
1 com.apple.CoreFoundation 0x00007fff805f0242
__CFSocketManager + 818
2 libSystem.B.dylib 0x00007fff8652cf8e _pthread_start
+ 331
3 libSystem.B.dylib 0x00007fff8652ce41 thread_start +
13
}}}
works fine with GC_DISABLE=1
---
TODO: Rewrite the script in pure objc, compile with -fobjc-gc and see if
it's a MacRuby bug or a Cocoa bug.
--
Ticket URL: <http://www.macruby.org/trac/ticket/540>
MacRuby <http://macruby.org/>
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