[ iOS15 ] imported/blink/fast/dom/shadow/shadowdom-for-keygen-only-shadow.html is a flaky crash (no data while reading stdout for the server process)

• Component: DOM
• Status: RESOLVED CONFIGURATION CHANGED

[Eric Hutchison]

Created attachment 440654 [details]
Test List

imported/blink/fast/dom/shadow/shadowdom-for-keygen-only-shadow.html

is a flaky crash on iOS15

History: https://results.webkit.org/?suite=layout-tests&test=imported%2Fblink%2Ffast%2Fdom%2Fshadow%2Fshadowdom-for-keygen-only-shadow.html

Build: https://build.webkit.org/#/builders/268/builds/87

Results: https://build.webkit.org/#/builders/268/builds/87

Crash Log: No crash log found for GPUProcess:19474.

STDIO:

08:54:36.279 7677 worker/3 GPUProcess crash, pid = 19474

08:54:36.668 7677 worker/3 This test marked as a crash because of no data while reading stdout for the server process.
08:54:36.669 7677 worker/3 This test marked as a crash because of no data while reading stdout for the server process.

08:55:21.334 7677 worker/3 worker/3 imported/blink/fast/dom/shadow/shadowdom-for-keygen-only-shadow.html crashed, (no stderr)
08:55:21.337 7677 [24821/56595] imported/blink/fast/dom/shadow/shadowdom-for-keygen-only-shadow.html failed unexpectedly (GPUProcess crashed [pid=19474])
08:55:21.337 7677 worker/3 killing driver
08:55:21.355 7677 worker/3 "/usr/libexec/PlistBuddy -c Print CFBundleExecutable /Volumes/Data/worker/ios-simulator-15-release-tests-wk2/build/WebKitBuild/Release-iphonesimulator/WebKitTestRunnerApp.app/Info.plist" took 0.02s

Reproduced with complete test list (attached) on ToT (r283732) using run-webkit-tests --clobber-old-results --ios-simulator --verbose --test-list=(test list attached)

Unable to narrow down tests causing crash locally as most attempts to repro failed to produce the crash result.

[Radar WebKit Bug Importer]

<rdar://problem/84037507>

[Eric Hutchison]

Updated test expectations at https://trac.webkit.org/changeset/283823/webkit