I'm trying to get web-platform-tests running against Geckoview's test runner activity, and I'm seeing some frequent (but not necessarily permanent) crashes during html/browsers tests. I can try to mark them as expected crashes to green up the test runs, but figured I should file a bug to track actually fixing the crashes.

Tests with crashes and links to their logs:
/html/browsers/browsing-the-web/history-traversal/browsing_context_name_cross_origin.html
https://treeherder.mozilla.org/logviewer.html#?job_id=239860277&repo=try

/html/browsers/browsing-the-web/unloading-documents/beforeunload-canceling.html
https://treeherder.mozilla.org/logviewer.html#?job_id=239860291&repo=try

/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/open-features-tokenization-screenx-screeny.html
https://treeherder.mozilla.org/logviewer.html#?job_id=239860277&repo=try

/html/browsers/the-window-object/window-open-noopener.html?_self
https://treeherder.mozilla.org/logviewer.html#?job_id=239765445&repo=try

/html/browsers/windows/browsing-context-names/choose-_parent-001.html
https://treeherder.mozilla.org/logviewer.html#?job_id=239860369&repo=try

/html/browsers/windows/browsing-context-names/choose-_top-002.html
https://treeherder.mozilla.org/logviewer.html#?job_id=239860293&repo=try

/html/browsers/windows/targeting-with-embedded-null-in-target.html
https://treeherder.mozilla.org/logviewer.html#?job_id=239765432&repo=try

21:21:55 WARNING - InvalidArgumentException: Unknown pointerType: [object String] "touch"

WPT crash bug 1544637 also has some "Unknown pointerType" test failures.

(In reply to Chris Peterson [:cpeterson] from comment #1)

21:21:55 WARNING - InvalidArgumentException: Unknown pointerType: [object String] "touch"

WPT crash bug 1544637 also has some "Unknown pointerType" test failures.
Those show up on desktop wpt, even om passing runs. (I've seen them on one of the Windows wpt14 see them.) chunks, can't remember if it was opt or debug. Se%ect the job in Treeherder and manually switch to the Failure Summary tab to

James sees other random intermittent WPT failures, some look infra related.