Bug 287865 – [ macOS wk2 ] pdf/two-pages-continuous-to-discrete.html is a flakily crashing/failing.

• Component: PDF
• Status: NEW

[Yasmin Karimi]

Created attachment 474270 [details]
pdf/two-pages-continuous-to-discrete.html

pdf/two-pages-continuous-to-discrete.html

This test is flakily failing on macOS wk2 Release and flakily crashing on macOS wk2 Debug (it is not tested on wk1).

HISTORY:

https://results.webkit.org/?suite=layout-tests&test=pdf%2Ftwo-pages-continuous-to-discrete.html

DIFF:

Attached

DIFF URL:

https://build.webkit.org/results/Apple-Sonoma-Release-AppleSilicon-WK2-Tests/290528@main%20(7190)/pdf/two-pages-continuous-to-discrete-diffs.html

REPRODUCIBILITY:

I was able to reproduce this failure on MacOS Sequoia 15.2 (24C101 / arm64) at ToT with the following command:

run-webkit-tests pdf/two-pages-continuous-to-discrete.html --iterations 20

[Radar WebKit Bug Importer]

<rdar://problem/145067255>

[Yasmin Karimi]

Created attachment 474271 [details]
two-pages-continuous-to-discrete-crash-log.txt

[EWS]

Test gardening commit 290544@main (ae848275bcc0): <https://commits.webkit.org/290544@main>

Reviewed commits have been landed. Closing PR #40774 and removing active labels.

[Alexey Proskuryakov]

ASSERTION FAILED: isHeld()
/Volumes/Data/worker/Apple-Sonoma-Debug-Build/build/WebKitBuild/Debug/usr/local/include/wtf/Lock.h(129) : void WTF::Lock::assertIsOwner() const
1   0x14911feac WTF::Lock::assertIsOwner() const
2   0x14911fe38 WebKit::PDFPluginBase::streamedBytesForDebugLogging() const
3   0x1491223d0 WebKit::PDFPluginBase::incrementalLoaderLog(WTF::String const&)
4   0x1490bf63c WebKit::PDFIncrementalLoader::incrementalLoaderLog(WTF::String const&)

[Abrar Rahman Protyasha]

This crasher is known, and we already have a patch tracking the fix: https://bugs.webkit.org/show_bug.cgi?id=287012

[Abrar Rahman Protyasha]

That would not explain the image failure though, so we'll still have to independently investigate that.