Subject: [Bug 215217] Kernel fails to boot at an early stage when built with GCC_PLUGIN_LATENT_ENTROPY=y (PowerMac G4 3,6)

From: [email-masked]
Date: Fri, 17 Dec 2021 07:20:57 +0000

https://bugzilla.kernel.org/show_bug.cgi?id=215217

--- Comment #13 from Christophe Leroy ([email-masked]) ---
arch/powerpc/lib/feature-fixups.o also need DISABLE_LATENT_ENTROPY_PLUGIN, see
extract from you vmlinux below

c0c0ad20 <apply_feature_fixups>:
c0c0ad20:       94 21 ff e0     stwu    r1,-32(r1)
c0c0ad24:       3c 60 c0 db     lis     r3,-16165
c0c0ad28:       7c 08 02 a6     mflr    r0
c0c0ad2c:       38 63 55 50     addi    r3,r3,21840
c0c0ad30:       bf 41 00 08     stmw    r26,8(r1)
c0c0ad34:       7c 3f 0b 78     mr      r31,r1
c0c0ad38:       3f 60 c0 da     lis     r27,-16166         <== latent_entropy@h
c0c0ad3c:       90 01 00 24     stw     r0,36(r1)
c0c0ad40:       3f 80 c0 d4     lis     r28,-16172
c0c0ad44:       83 db 5b 50     lwz     r30,23376(r27)     <== latent_entropy@l
c0c0ad48:       4b 40 60 35     bl      c0010d7c <add_reloc_offset>

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