fast/loader/reload-zero-byte-plugin.html has started consistently timing out with no output on Big Sur WK2 bots https://results.webkit.org/?suite=layout-tests&test=fast%2Floader%2Freload-zero-byte-plugin.html
Created attachment 436458 [details] sample from bot
<rdar://problem/82370692>
I cannot reproduce this with a build of r281515, but I can with r281516.
This is only occurring on Apple Silicon bots, and my machine is also an AS one.
Committed r281611 (240967@main): <https://commits.webkit.org/240967@main>
Reopening since I merely skipped the test for now.
Created attachment 436462 [details] WIP patch Patch for EWS since I don't have an Apple Silicon device handy.
(In reply to Chris Dumez from comment #7) > Created attachment 436462 [details] > WIP patch > > Patch for EWS since I don't have an Apple Silicon device handy. This did not resolve the issue for me locally.
(In reply to Ryan Haddad from comment #8) > (In reply to Chris Dumez from comment #7) > > Created attachment 436462 [details] > > WIP patch > > > > Patch for EWS since I don't have an Apple Silicon device handy. > This did not resolve the issue for me locally. Thanks for checking. Mac-AS-debug-wk2 is green so it seems I cannot rely on EWS after all?
I built with UBSan and ran this test but there was nothing interesting in the output.
Created attachment 436509 [details] WIP patch
(In reply to Chris Dumez from comment #9) > (In reply to Ryan Haddad from comment #8) > > (In reply to Chris Dumez from comment #7) > > > Created attachment 436462 [details] > > > WIP patch > > > > > > Patch for EWS since I don't have an Apple Silicon device handy. > > This did not resolve the issue for me locally. > > Thanks for checking. Mac-AS-debug-wk2 is green so it seems I cannot rely on > EWS after all? Hm, I’ll try another build..
(In reply to Ryan Haddad from comment #12) > (In reply to Chris Dumez from comment #9) > > (In reply to Ryan Haddad from comment #8) > > > (In reply to Chris Dumez from comment #7) > > > > Created attachment 436462 [details] > > > > WIP patch > > > > > > > > Patch for EWS since I don't have an Apple Silicon device handy. > > > This did not resolve the issue for me locally. > > > > Thanks for checking. Mac-AS-debug-wk2 is green so it seems I cannot rely on > > EWS after all? > Hm, I’ll try another build.. Would you be able to provide me with the output of: log stream --system | grep ProcessSwapping When you run the test? I am curious if process swapping is actually happening for some reason (it shouldn't in this test).
Committed r281632 (240988@main): <https://commits.webkit.org/240988@main>
"Big Sur E wk2 Release on Macmini9,1 with arm64" is green again. Still waiting on "Big Sur E wk2 Debug on Macmini9,1 with arm64" to process the patch but odds are the partial revert worked.