I noticed the following log error in the output of a leaks-test on the buildbot: ================= ERROR: hit a RenderWidget without a corresponding Widget, means a frame is half-constructed (/Users/buildbot/Desktop/BuildData/WebKit-BuildSlave/post-commit-leaks-powerpc-mac-os-x/build/WebCore/bridge/mac/FrameMac.mm:1438 passMouseDownEventToWidget) ================= This seems to be intermittent as the next leaks-test that compiled and ran did not exhibit this behavior. I don't think that the patch applied would cause this, either. Thanks to Google, I found another occurrence of this in Build 2050: http://build.webkit.org/post-commit-leaks-powerpc-mac-os-x/builds/2050/step-leak-test/0 Leaks-test build 2050 was built due to r15338, which was a ChangeLog edit (obviously not the cause). http://build.webkit.org/post-commit-leaks-powerpc-mac-os-x/builds/2050 Perhaps bdash can find other occurrences using grep?
The following builds show the same error: * http://build.webkit.org/post-commit-leaks-powerpc-mac-os-x/builds/1965 * http://build.webkit.org/post-commit-leaks-powerpc-mac-os-x/builds/1973 * http://build.webkit.org/post-commit-leaks-powerpc-mac-os-x/builds/2040 * http://build.webkit.org/post-commit-leaks-powerpc-mac-os-x/builds/2050 * http://build.webkit.org/post-commit-leaks-powerpc-mac-os-x/builds/2067 * http://build.webkit.org/post-commit-leaks-powerpc-mac-os-x/builds/2070 * http://build.webkit.org/post-commit-leaks-powerpc-mac-os-x/builds/2092
trying to remove weird char from subject.
See bug 3426 for a reproducible case of this error.