Hi everyone, I'm working on a Dashboard widget with a multi-threaded Cocoa plugin. The plugin seems to be working just fine, but I'm getting an occasional (frequent but inconsistent) crash that appears to indicate a bug in WebKit: ====================================================== Exception: EXC_BAD_ACCESS (0x0001) Codes: KERN_PROTECTION_FAILURE (0x0002) at 0x00000018 Thread 0 Crashed: 0 com.apple.WebCore 0x95c4a734 khtml::inlineWidth (khtml::RenderObject*, bool, bool) + 152 1 com.apple.WebCore 0x95c48b98 khtml::RenderBlock::findNextLineBreak(khtml::BidiIterator&, khtml::BidiState&) + 3548 2 com.apple.WebCore 0x95c46dbc khtml::RenderBlock::layoutInlineChildren(bool) + 1980 3 com.apple.WebCore 0x95c435d4 khtml::RenderBlock::layoutBlock(bool) + 692 4 com.apple.WebCore 0x95c4a49c khtml::RenderBlock::layoutPositionedObjects(bool) + 172 5 com.apple.WebCore 0x95c43930 khtml::RenderBlock::layoutBlock(bool) + 1552 6 com.apple.WebCore 0x95c4409c khtml::RenderBlock::layoutBlockChildren(bool) + 696 7 com.apple.WebCore 0x95c435ec khtml::RenderBlock::layoutBlock(bool) + 716 8 com.apple.WebCore 0x95c40524 khtml::RenderCanvas::layout() + 252 9 com.apple.WebCore 0x95c3fe08 KHTMLView::layout() + 792 10 com.apple.WebCore 0x95c52518 -[WebCoreBridge forceLayoutAdjustingViewSize:] + 56 11 com.apple.WebKit 0x959ce11c -[WebHTMLView layoutToMinimumPageWidth:maximumPageWidth:adjustingViewSize:] + 228 12 com.apple.WebKit 0x959e1328 -[WebHTMLView (WebPrivate) _web_layoutIfNeededRecursive] + 36 13 com.apple.WebKit 0x959cb8c0 -[WebHTMLView (WebPrivate) _propagateDirtyRectsToOpaqueAncestors] + 72 ... ====================================================== The crash is preceded by incorrect width of displayed divs, disappearing elements, or both. Does this seem to you to be a WebKit bug, or could there be a problem with my code? Ben