Bug 229009 – [ Win EWS ] fast/forms/* tests are flaky crashing FAULTING_IP: WebKit!WebCore::FontCache::lastResortFallbackFont+ec [C:\cygwin\home\buildbot\worker\Windows-EWS\build\Source\WebCore\platform\graphics\win\FontCacheWin.cpp @ 424]

• Component: New Bugs
• Status: RESOLVED FIXED

fast/forms/input-baseline.html

Is flaky crashing on Windows-EWS.

It seems that the crash is not showing up in the open source directory https://results.webkit.org/?suite=layout-tests&test=fast/forms/input-baseline.html

It appears to have started at around https://ews-build.webkit.org/#/builders/10/builds/100149

Results page: https://ews-build.s3-us-west-2.amazonaws.com/Windows-EWS/r433905-100149/results.html

Created attachment 435363 [details]
Crash log

[Radar WebKit Bug Importer]

<rdar://problem/81805242>

Updated test expectations https://trac.webkit.org/changeset/280923/webkit

This bug https://bugs.webkit.org/show_bug.cgi?id=228968 might be related. This is about a flaky crash at fast/forms/search/search-zoom-computed-style-height.html and this also started at around same build (100140)

[Ryan Haddad]

FAULTING_IP: 
WebKit!WebCore::FontCache::lastResortFallbackFont+ec [C:\cygwin\home\buildbot\worker\Windows-EWS\build\Source\WebCore\platform\graphics\win\FontCacheWin.cpp @ 424]

fast/forms/form-element-geometry.html 
fast/forms/focus-selection-input.html
fast/forms/select/listbox-in-multi-column.html

Are also flaky crashing on Windows-EWS.

Not showing up on the open source directory: https://results.webkit.org/?suite=layout-tests&suite=layout-tests&suite=layout-tests&test=fast%2Fforms%2Ffocus-selection-input.html&test=fast%2Fforms%2Fselect%2Flistbox-in-multi-column.html&test=fast%2Fforms%2Fform-element-geometry.html

Seems like the crash logs indicate that they are related to each other.

Builds first started showing crashes:
fast/forms/form-element-geometry.html:  https://ews-build.webkit.org/#/builders/10/builds/100147
fast/forms/focus-selection-input.html: https://ews-build.webkit.org/#/builders/10/builds/100132
fast/forms/select/listbox-in-multi-column.html: https://ews-build.webkit.org/#/builders/10/builds/100140

Updated test expectations https://trac.webkit.org/changeset/281092/webkit

*** Bug 229194 has been marked as a duplicate of this bug. ***

More fast tests are showing up as flaky tests on Win EWS:

fast/events/mouse-cursor-image-set.html
fast/forms/input-button-sizes.html
fast/forms/input-placeholder-paint-order-2.html
fast/forms/select/select-painting.html
fast/forms/textarea/textarea-placeholder-paint-order-2.html

It looks like this bug https://bugs.webkit.org/show_bug.cgi?id=228186 is related. 

Marked expectations to speed up EWS while this bug is being fixed: https://trac.webkit.org/changeset/281236/webkit

It looks like the bug is fixed here:https://bugs.webkit.org/show_bug.cgi?id=228186

Confirmed the tests are not showing up on EWS. Removing test expectations https://trac.webkit.org/changeset/281499/webkit

*** Bug 228968 has been marked as a duplicate of this bug. ***

*** Bug 229143 has been marked as a duplicate of this bug. ***