Created attachment 848146 [details] dmesg from 15.3 on SATA SSD on host asa88 and comment #11 hack & initcall_debug employed Michal, in the process of appending initcall_debug I found cmdline also included debug and rd.debug, which I removed for the current test with the hack initrd. This resulted in no excess delay, multi-user reached in ~3.6s. Restoring previous initrd and booting without any *debug* options maintain the ~3.6s boot times. The attachment is from booting with no *debug* options except initcall_debug. I suspect highly this bug is invalid because of the debug and rd.debug boot options, which I have now removed from the grub stanzas. Last boot time was <3.5s.