Bug 191633 – REGRESSION(r237245): wpt.fyi hangs Safari

• Component: History
• Status: RESOLVED DUPLICATE

[Sam Sneddon [:gsnedders]]

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.

[Radar WebKit Bug Importer]

<rdar://problem/46066744>

[youenn fablet]

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.)

[zalan]

Regressed with https://trac.webkit.org/changeset/237245

[Ms2ger (he/him; ⌚ UTC+1/+2)]

(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?

[Wenson Hsieh]

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.

[zalan]

It is fixed on trunk

[Wenson Hsieh]

*** This bug has been marked as a duplicate of bug 193012 ***