Bug 165659 – CrashTracer: com.apple.WebKit.Networking at WTF::ThreadSafeRefCounted<WebKit::NetworkCache::IOChannel>::deref

• Status: REOPENED
• Component: Page Loading

[Antti Koivisto]

Some crashes of this type have been seen:

      25 libdispatch.dylib: _dispatch_try_lock_transfer_or_wakeup
        25 libdispatch.dylib: _dispatch_io_dispose
          39 libdispatch.dylib: _dispatch_io_dispose
            40 libdispatch.dylib: _dispatch_dispose
       ==> 40 WebKit: WTF::ThreadSafeRefCounted<WebKit::NetworkCache::IOChannel>::deref() <==
              | 27 libsystem_blocks.dylib: _Block_release
              | | 27 libsystem_blocks.dylib: _Block_release
              | |   24 libdispatch.dylib: _dispatch_client_callout
              | |   | 24 libdispatch.dylib: _dispatch_continuation_pop
              | |   |   24 libdispatch.dylib: _dispatch_async_redirect_invoke
              | |   |     24 libdispatch.dylib: _dispatch_root_queue_drain
              | |   |       24 libdispatch.dylib: _dispatch_worker_thread3
              | |   |         24 libsystem_pthread.dylib: _pthread_wqthread
              | |   |           24 libsystem_pthread.dylib: 
              | |   pruning: 2 libdispatch.dylib: _dispatch_continuation_pop
              | |   pruning: 1 libdispatch.dylib: _dispatch_queue_serial_drain
              | 13 WebKit: std::__1::__function::__func<WebKit::NetworkCache::Storage::dispatchReadOperation(std::__1::unique_ptr<WebKit::NetworkCache::Storage::ReadOperation, std::__1::default_delete<WebKit::NetworkCache::Storage::ReadOperation> >)::$_6, std::__1::allocator<WebKit::NetworkCache::Storage::dispatchReadOperation(std::__1::unique_ptr<WebKit::NetworkCache::Storage::ReadOperation, std::__1::default_delete<WebKit::NetworkCache::Storage::ReadOperation> >)::$_6>, void ()>::operator()()
              |   13 JavaScriptCore: ___ZN3WTF9WorkQueue8dispatchENSt3__18functionIFvvEEE_block_invoke
              |     13 libdispatch.dylib: _dispatch_call_block_and_release
              |       pruning: 9 libdispatch.dylib: _dispatch_client_callout
              |       pruning: 4 libdispatch.dylib: _dispatch_continuation_pop
       ==> 10 libdispatch.dylib: _dispatch_dispose <==
                10 WebKit: WTF::ThreadSafeRefCounted<WebKit::NetworkCache::IOChannel>::deref()
                  pruning: 6 libsystem_blocks.dylib: _Block_release
                  pruning: 4 WebKit: std::__1::__function::__func<WebKit::NetworkCache::Storage::dispatchReadOperation(std::__1::unique_ptr<WebKit::NetworkCache::Storage::ReadOperation, std::__1::default_delete<WebKit::NetworkCache::Storage::ReadOperation> >)::$_6, std::__1::allocator<WebKit::NetworkCache::Storage::dispatchReadOperation(std::__1::unique_ptr<WebKit::NetworkCache::Storage::ReadOperation, std::__1::default_delete<WebKit::NetworkCache::Storage::ReadOperation> >)::$_6>, void ()>::operator()()

[Antti Koivisto]

<rdar://problem/27077977>

[Antti Koivisto]

Created attachment 296659 [details]
add a release assert

[Darin Adler]

Comment on attachment 296659 [details]
add a release assert

OK, hope this works!

[WebKit Commit Bot]

Comment on attachment 296659 [details]
add a release assert

Clearing flags on attachment: 296659

Committed r209660: <http://trac.webkit.org/changeset/209660>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.

[Antti Koivisto]

Not a fix.