Regression, ReactOS takes a bit longer to boot during 1st/2nd/3rd stage, hangs a bit and detects a workqueue deadlock then

In recent master builds, before ros 1st stage setup shows the blue language selection screen, there is an additional delay and ros detects a workqueue deadlock.

(ntoskrnl/ex/work.c:352) EX: Work Queue Deadlock detected: 1

(ntoskrnl/ex/work.c:354) Dynamic threads queued 1

(ntoskrnl/ex/work.c:352) EX: Work Queue Deadlock detected: 1

(ntoskrnl/ex/work.c:354) Dynamic threads queued 2

(drivers/storage/port/scsiport/scsiport.c:2894)   unknown ioctl code: 0x56C008

(ntoskrnl/ex/work.c:352) EX: Work Queue Deadlock detected: 1

(ntoskrnl/ex/work.c:354) Dynamic threads queued 3

It happens with 100% in the builds that I marked as affected.
I observed it in
reactos-bootcd-0.4.14-dev-792-ge2b536b-x86-gcc-lin-dbg.iso
reactos-bootcd-0.4.14-dev-750-g1e83f8b-x86-gcc-lin-dbg.iso
reactos-bootcd-0.4.14-dev-724-g39eceed-x86-gcc-lin-dbg.iso
reactos-bootcd-0.4.14-dev-712-gd24acc9-x86-gcc-lin-dbg.iso
reactos-bootcd-0.4.14-dev-705-g4bc5d44-x86-gcc-lin-dbg.iso
reactos-bootcd-0.4.14-dev-699-g0d26bbf-x86-gcc-lin-dbg.iso
reactos-bootcd-0.4.14-dev-594-g5214a38-x86-gcc-lin-dbg.iso
reactos-bootcd-0.4.14-dev-560-g5bd6580-x86-gcc-lin-dbg.iso
reactos-bootcd-0.4.14-dev-559-g611eb55-x86-gcc-lin-dbg.iso
reactos-bootcd-0.4.14-dev-430-gf41366d-x86-gcc-lin-dbg.iso
reactos-bootcd-0.4.14-dev-380-gf882142-x86-gcc-lin-dbg.iso
reactos-bootcd-0.4.14-dev-374-ge4de098-x86-gcc-lin-dbg.iso
reactos-bootcd-0.4.14-dev-373-g0917815-x86-gcc-lin-dbg.iso GUILTY
reactos-bootcd-0.4.14-dev-372-g2fb33d4-x86-gcc-lin-dbg.iso
reactos-bootcd-0.4.14-dev-371-g098564d-x86-gcc-lin-dbg.iso
reactos-bootcd-0.4.14-dev-368-gfa26425-x86-gcc-lin-dbg.iso
reactos-bootcd-0.4.14-dev-352-ga890fc6-x86-gcc-lin-dbg.iso
reactos-bootcd-0.4.14-dev-316-g986f6a4-x86-gcc-lin-dbg.iso
ReactOS-0.4.13-RC-37-ge0475c6.iso
Looks like something newly introduced/unhidden during 0.4.14dev.
It's causing just an additional delay. But upon each and every boot (also 2nd+3rd stage)

I attached good vs bad path log 0.4.14-dev-594BAD_vs_0.4.14-dev-316GOOD.log
This is on VBox4.3.12.