The error text (http://build.webkit.org/post-commit-leaks-powerpc-mac-os-x/builds/5547/step-leak-test/0): ERROR: No parent frame in transitionToCommitted:, FrameLoadTypeInternal (/Users/buildbot/Desktop/BuildData/WebKit-BuildSlave/post-commit-leaks-powerpc-mac-os-x/build/WebCore/loader/FrameLoader.cpp:4053 updateHistoryForInternalLoad) The leak (http://build.webkit.org/results/post-commit-leaks-powerpc-mac-os-x/5547/DumpRenderTree-leaks.txt): Process 6214: 47151 nodes malloced for 8824 KB Process 6214: 8 leaks for 1936 total leaked bytes. Leak: 0x028ec400 size=1024 instance of 'NSCFString' 0xa07b9674 0x00010788 0x0000021e 0x66696c65 .{.t........file 0x3a2f2f2f 0x55736572 0x732f6275 0x696c6462 :///Users/buildb 0x6f742f44 0x65736b74 0x6f702f42 0x75696c64 ot/Desktop/Build 0x44617461 0x2f576562 0x4b69742d 0x4275696c Data/WebKit-Buil 0x64536c61 0x76652f70 0x6f73742d 0x636f6d6d dSlave/post-comm 0x69742d6c 0x65616b73 0x2d706f77 0x65727063 it-leaks-powerpc 0x2d6d6163 0x2d6f732d 0x782f6275 0x696c642f -mac-os-x/build/ 0x4c61796f 0x75745465 0x7374732f 0x66617374 LayoutTests/fast ... Call stack: [thread 13]: | 0x3 | start | _start | main | dumpRenderTree | runTest | -[NSRunLoop runMode:beforeDate:] | CFRunLoopRunSpecific | __CFRunLoopRun | __CFRunLoopDoSources0 | _sendCallbacks | -[NSURLConnection(NSURLConnectionInternal) _sendCallbacks] | -[NSURLConnection(NSURLConnectionInternal) _sendDidReceiveDataCallback] | -[WebCoreResourceHandleAsDelegate connection:didReceiveData:lengthReceived:] | WebCore::ResourceLoader::didReceiveData(WebCore::ResourceHandle*, char const*, int, int) | WebCore::MainResourceLoader::didReceiveData(char const*, int, long long, bool) | WebCore::ResourceLoader::didReceiveData(char const*, int, long long, bool) | WebCore::MainResourceLoader::addData(char const*, int, bool) | WebCore::FrameLoader::receivedData(char const*, int) | WebCore::DocumentLoader::receivedData(char const*, int) | WebCore::DocumentLoader::commitLoad(char const*, int) | WebCore::DocumentLoader::commitIfReady() | WebCore::FrameLoader::commitProvisionalLoad(WTF::PassRefPtr<WebCore::PageCache>) | WebCore::FrameLoader::transitionToCommitted(WTF::PassRefPtr<WebCore::PageCache>) | WebCore::FrameLoader::updateHistoryForStandardLoad() | WebCore::FrameLoader::updateGlobalHistoryForStandardLoad(WebCore::KURL const&) | WebFrameLoaderClient::updateGlobalHistoryForStandardLoad(WebCore::KURL const&) | WebCore::KURL::getNSURL() const | WebCore::KURL::createCFURL() const | CFURLCreateAbsoluteURLWithBytes | CFStringCreateWithBytes | __CFStringCreateImmutableFunnel3 | _CFRuntimeCreateInstance | CFAllocatorAllocate 7 leaks excluded (not printed)
The leak is not a result of 20813 - it first appeared in build 5547 and appears to be tied to 20815. The error messages... well, I missed those in my final run of layout tests before committing this patch. I will explore them soon-ish.
So these should be two separate bugs.
This bug is now just for the leak. I have filed http://bugs.webkit.org/show_bug.cgi?id=13330 for the error logging
That said, I could not reproduce the leak locally, and it seems only one of the bots can reproduce it - and intermittently at that! I don't know how to explore this - and its difficult to say for certain it was 20813 since the leak could have been there before but that bot just wasn't running.
<rdar://problem/5153016>
A single intermittent leak does not a p1 make