[Webkit-unassigned] [Bug 158243] Precache primary font in a secondary thread

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=158243

--- Comment #17 from Ryan Haddad <ryanhaddad at apple.com> ---
(In reply to comment #16)
> This change caused 3 API test failures on iOS-simulator
> 
> <https://build.webkit.org/builders/
> Apple%20iOS%209%20Simulator%20Release%20WK2%20%28Tests%29/builds/6153>
> 
> Tests that failed:
>   WebCoreNSURLSessionTest.BasicOperation
>   WebCoreNSURLSessionTest.InvalidateEmpty
>   WebKit1.AudioSessionCategoryIOS

hread 3 Crashed:: Dispatch queue: org.webkit.font-precache
0   com.apple.WebCore                 0x000000010d908d9b WTF::NoncopyableFunction<void ()>::CallableWrapper<WebCore::FontCache::platformPrecache(WTF::AtomicString const&, WebCore::FontDescription const&, std::__1::function<void (std::__1::unique_ptr<WebCore::FontPlatformData, std::__1::default_delete<WebCore::FontPlatformData> >, bool)>&&)::$_0>::call() + 219 (NoncopyableFunction.h:88)
1   JavaScriptCore                    0x000000010c6f5a83 ___ZN3WTF9WorkQueue8dispatchEONS_19NoncopyableFunctionIFvvEEE_block_invoke + 35 (WorkQueueCocoa.cpp:37)
2   libdispatch.dylib                 0x00000001116fbc89 _dispatch_call_block_and_release + 12
3   libdispatch.dylib                 0x00000001117173d7 _dispatch_client_callout + 8
4   libdispatch.dylib                 0x0000000111701018 _dispatch_queue_drain + 1048
5   libdispatch.dylib                 0x00000001117009d0 _dispatch_queue_invoke + 595
6   libdispatch.dylib                 0x00000001117022e8 _dispatch_root_queue_drain + 565
7   libdispatch.dylib                 0x00000001117020ac _dispatch_worker_thread3 + 98
8   libsystem_pthread.dylib           0x0000000111a4f4de _pthread_wqthread + 1129
9   libsystem_pthread.dylib           0x0000000111a4d341 start_wqthread + 13

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