Bug 192039 - [ iOS WK2 ] Layout Test imported/blink/fast/forms/date-multiple-fields/date-multiple-fields-clearbutton-visibility-after-restore.html is flaky crash
Summary: [ iOS WK2 ] Layout Test imported/blink/fast/forms/date-multiple-fields/date-m...
Status: RESOLVED CONFIGURATION CHANGED
Alias: None
Product: WebKit
Classification: Unclassified
Component: Layout and Rendering (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2018-11-27 14:44 PST by Truitt Savell
Modified: 2019-01-25 20:40 PST (History)
8 users (show)

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Description Truitt Savell 2018-11-27 14:44:42 PST 
The following layout test is flaky on iOS Sim WK2

imported/blink/fast/forms/date-multiple-fields/date-multiple-fields-clearbutton-visibility-after-restore.html

Probable cause:

unknown, test has been crashing for the whole history. Crash log is blaming imported/blink/fast/forms/datalist/slider-appearance-with-ticks-crash.html as the crashing test. 

Flakiness Dashboard:

https://webkit-test-results.webkit.org/dashboards/flakiness_dashboard.html#showAllRuns=true&tests=imported%2Fblink%2Ffast%2Fforms%2Fdate-multiple-fields%2Fdate-multiple-fields-clearbutton-visibility-after-restore.html

Crash Log:
https://build.webkit.org/results/Apple%20iOS%2012%20Simulator%20Release%20WK2%20(Tests)/r238568%20(1193)/imported/blink/fast/forms/date-multiple-fields/date-multiple-fields-clearbutton-visibility-after-restore-crash-log.txt
Comment 1 Alexey Proskuryakov 2018-11-27 16:51:44 PST 
Null pointer crash. I think that this is tracked in rdar://problem/45562160.

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   com.apple.WebCore             	0x000000011945824f WebCore::RenderTheme::paintSliderTicks(WebCore::RenderObject const&, WebCore::PaintInfo const&, WebCore::IntRect const&) + 335 (RenderTheme.cpp:1085)
1   com.apple.WebCore             	0x000000011831a20c WebCore::RenderThemeIOS::paintSliderTrack(WebCore::RenderObject const&, WebCore::PaintInfo const&, WebCore::IntRect const&) + 380 (RenderThemeIOS.mm:822)
2   com.apple.WebCore             	0x00000001194568bd WebCore::RenderTheme::paint(WebCore::RenderBox const&, WebCore::ControlStates&, WebCore::PaintInfo const&, WebCore::LayoutRect const&) + 621 (RenderTheme.cpp:362)
3   com.apple.WebCore             	0x000000011932c375 WebCore::RenderBox::paintBoxDecorations(WebCore::PaintInfo&, WebCore::LayoutPoint const&) + 1077 (RenderBox.cpp:1294)
4   com.apple.WebCore             	0x00000001192f032b WebCore::RenderBlock::paintObject(WebCore::PaintInfo&, WebCore::LayoutPoint const&) + 75 (RenderBlock.cpp:1228)
5   com.apple.WebCore             	0x00000001192efdaf WebCore::RenderBlock::paint(WebCore::PaintInfo&, WebCore::LayoutPoint const&) + 271 (RenderBlock.cpp:1105)
6   com.apple.WebCore             	0x00000001193652f4 WebCore::RenderElement::paintAsInlineBlock(WebCore::PaintInfo&, WebCore::LayoutPoint const&) + 116 (RenderElement.cpp:993)
7   com.apple.WebCore             	0x00000001192d58c5 WebCore::InlineElementBox::paint(WebCore::PaintInfo&, WebCore::LayoutPoint const&, WebCore::LayoutUnit, WebCore::LayoutUnit) + 117 (InlineElementBox.cpp:82)
8   com.apple.WebCore             	0x00000001192dc150 WebCore::InlineFlowBox::paint(WebCore::PaintInfo&, WebCore::LayoutPoint const&, WebCore::LayoutUnit, WebCore::LayoutUnit) + 1056 (InlineFlowBox.cpp:1215)
...