BoringSSL Self Test Hang During Boot
Because the kernel getrandom won't return until the random pool is seeded, this self test blocks until seeding is done. This takes over 30 seconds on affected variants.
This has only been observed to affect t210. t186 and t234 are not affected. Also observed, foster_e_hdd is not affected, crng returns within a couple seconds there. Smaug and nx are also affected.
This is not an issue on Android 14. Some seemingly relevant commits from 14 were backported to 13 and merged as part of a qpr. But those changes did not affect this behavior on affected variants.