When the system is under load while booting simulators, we will occasionally get an exit code 18 from 'simctl install'. This is supposed to indicate that a device cannot run the provided binary (because, for example, the binary was built for iPad but the simulated device is an iPhone). We have evidence from our testers that simctl will incorrectly report this state when the system is under load.
<rdar://problem/128896147>
Pull request: https://github.com/WebKit/WebKit/pull/29200
Committed 279413@main (87a89115afe5): <https://commits.webkit.org/279413@main> Reviewed commits have been landed. Closing PR #29200 and removing active labels.
Committed 272448.1047@safari-7618-branch (200daced6d15): <https://commits.webkit.org/272448.1047@safari-7618-branch> Reviewed commits have been landed. Closing PR #1308 and removing active labels.