Testing 1 (pnpT) or 2 (pnpT_np1) patches:

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reactos-bootcd-0.4.15-dev-1408-g582ca68-x86-gcc-lin-dbg
Succeed, as in no change.

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reactos-bootcd-0.4.15-dev-1412-g139e8f5-x86-gcc-lin-dbg ([New PnP|https://git.reactos.org/?p=reactos.git;a=commit;h=139e8f530827ee6fb49b917a0c1ecd03d909eebd])
Stage 2: +initial crash+ {{Fatal System Error: 0xc000021a}}.

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reactos-bootcd-0.4.15-dev-1413-gcbe88e2-x86-gcc-lin-dbg ([WIN8 structs|https://git.reactos.org/?p=reactos.git;a=commit;h=cbe88e287f45ae0dead0d80f169a7e20e569480c])
reactos-bootcd-0.4.15-dev-1461-g971cf12-x86-gcc-lin-dbg
...
Stage 2: +new crash+ {{Kill smss.exe, ExceptionCode: c0000005}}.

--

...
reactos-bootcd-0.4.15-dev-1500-g8ee88d3-x86-gcc-lin-dbg
reactos-bootcd-0.4.15-dev-1535-geb59720-x86-gcc-lin-dbg
reactos-bootcd-0.4.15-dev-1539-g6f0e37b-x86-gcc-lin-dbg
Stage 2, 1 patch: current crash {{Kill smss.exe, ExceptionCode: c0000005}}.
Stage 2, 2 patches: +succeed!+

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reactos-bootcd-0.4.15-dev-1540-gedb425d-x86-gcc-lin-dbg ([SETUPREG.HIV|https://git.reactos.org/?p=reactos.git;a=commit;h=edb425d89e097950d7e69189f0fdcefb1f8ec598])
reactos-bootcd-0.4.15-dev-1545-ge525497-x86-gcc-lin-dbg
reactos-bootcd-0.4.15-dev-1555-g4eead52-x86-gcc-lin-dbg
reactos-bootcd-0.4.15-dev-1575-g5a47b6e-x86-gcc-lin-dbg
reactos-bootcd-0.4.15-dev-1602-g5112776-x86-gcc-lin-dbg
reactos-bootcd-0.4.15-dev-1615-gb1bf3aa-x86-gcc-lin-dbg
reactos-bootcd-0.4.15-dev-1630-gbe25187-x86-gcc-lin-dbg
reactos-bootcd-0.4.15-dev-1639-g0b81691-x86-gcc-lin-dbg
(Stage 1 unrelated hang {{FIXME: Installing from RamDisk is UNSUPPORTED!}}.)

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reactos-bootcd-0.4.15-dev-1640-g942f2e4-x86-gcc-lin-dbg ([Keep CDDB|https://git.reactos.org/?p=reactos.git;a=commit;h=942f2e43c1300d2ca7f682b821e59e0ff2003a47])
reactos-bootcd-0.4.15-dev-1641-ge468da0-x86-gcc-lin-dbg
Stage 2, 1 patch: current crash {{Kill smss.exe, ExceptionCode: c0000005}}.
Stage 2, 2 patches: succeed.

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reactos-bootcd-0.4.15-dev-1642-gb704292-x86-gcc-lin-dbg ([More enum requests|https://git.reactos.org/?p=reactos.git;a=commit;h=b7042928089b360663f310a6a7aa0a2c0eb0326d])
reactos-bootcd-0.4.15-dev-1643-g798fc13-x86-gcc-lin-dbg
reactos-bootcd-0.4.15-dev-1650-gae4ce99-x86-gcc-lin-dbg
reactos-bootcd-0.4.15-dev-1685-gd0c237a-x86-gcc-lin-dbg
reactos-bootcd-0.4.15-dev-1712-g4abda86-x86-gcc-lin-dbg
reactos-bootcd-0.4.15-dev-1716-ge4047d1-x86-gcc-lin-dbg
Stage 2, 1 patch: current crash {{Kill smss.exe, ExceptionCode: c0000005}}.
Stage 2, 2 patches: +new+/current +hang+.

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reactos-bootcd-0.4.15-dev-1717-gd8cdb89-x86-gcc-lin-dbg ([New Cc+Mm|https://git.reactos.org/?p=reactos.git;a=commit;h=d8cdb89fb03006595dc40ac23db5267b8d9d9c09])
reactos-bootcd-0.4.15-dev-1725-g91edefa-x86-gcc-lin-dbg
reactos-bootcd-0.4.15-dev-1804-gf83c907-x86-gcc-lin-dbg
reactos-bootcd-0.4.15-dev-2022-g44eecfa-x86-gcc-lin-dbg
Stage 1: +new+/current (long) +pauses+! (I abort.)