Navigating to https://wpt.fyi/ in TP69 results in "A problem repeatedly occurred"; in the r238171 High Sierra archive it fails to paint anything with both Safari and the History process under heavy CPU load.
<rdar://problem/46066744>
Thanks Geoffrey, I reproed the issue and this still happens in WebKit Tot AFAICT. There seems to be an issue in the renderer (RenderBlock::paint et al.)
Regressed with https://trac.webkit.org/changeset/237245
(In reply to zalan from comment #3) > Regressed with https://trac.webkit.org/changeset/237245 Can one of the people who worked on that take a look?
Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 com.apple.WebCore 0x000000010dfc9f58 WebCore::RenderThemeMac::paintListButtonForInput(WebCore::RenderObject const&, WebCore::GraphicsContext&, WebCore::FloatRect const&) + 424 1 com.apple.WebCore 0x000000010dfca6e5 WebCore::RenderThemeMac::paintTextField(WebCore::RenderObject const&, WebCore::PaintInfo const&, WebCore::FloatRect const&) + 949 2 com.apple.WebCore 0x000000010eeb51bb WebCore::RenderTheme::paintBorderOnly(WebCore::RenderBox const&, WebCore::PaintInfo const&, WebCore::LayoutRect const&) + 427 3 com.apple.WebCore 0x000000010d9e2867 WebCore::RenderBox::paintBoxDecorations(WebCore::PaintInfo&, WebCore::LayoutPoint const&) + 1191 4 com.apple.WebCore 0x000000010d9dfc2b WebCore::RenderBlock::paintObject(WebCore::PaintInfo&, WebCore::LayoutPoint const&) + 75 5 com.apple.WebCore 0x000000010d9e1f45 WebCore::RenderBlock::paint(WebCore::PaintInfo&, WebCore::LayoutPoint const&) + 245 6 com.apple.WebCore 0x000000010edb3ca2 WebCore::RenderBlock::paintChild(WebCore::RenderBox&, WebCore::PaintInfo&, WebCore::LayoutPoint const&, WebCore::PaintInfo&, bool, WebCore::RenderBlock::PaintBlockType) + 642 I think Alan has already fixed this in r239786 — I'll check on trunk to confirm.
It is fixed on trunk
*** This bug has been marked as a duplicate of bug 193012 ***