https://commits.webkit.org/274694@main introduced a regression: Causes crashes when multiple threads are rendering PDF pages This is an automatic bug report generated by webkitbot. If this bug report was created because of a flaky test, please file a bug for the flaky test (if we don't already have one on file) and dup this bug against that bug so that we can track how often these flaky tests fail.
Created attachment 469883 [details] REVERT of 274694@main Any committer can land this patch automatically by marking it commit-queue+. The commit-queue will build and test the patch before landing to ensure that the revert will be successful. This process takes approximately 15 minutes. If you would like to land the revert faster, you can use the following command: webkit-patch land-attachment ATTACHMENT_ID where ATTACHMENT_ID is the ID of this attachment.
This caused crashes when rdar://119632313 is enabled, which causes multiple threads to be triggering loading at the same time. The "semaphore per request" is needed.
Committed 274738@main (c030c01b1e1b): <https://commits.webkit.org/274738@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 469883 [details].
<rdar://problem/123019776>