# git rev-parse -q --verify 9bb162fa26ed76031ed0e7dbc77ccea0bf977758^{commit}
9bb162fa26ed76031ed0e7dbc77ccea0bf977758
already have revision, skipping fetch
# git checkout -q -f -B kisskb 9bb162fa26ed76031ed0e7dbc77ccea0bf977758
# git clean -qxdf
# < git log -1
# commit 9bb162fa26ed76031ed0e7dbc77ccea0bf977758
# Author: Christophe Leroy <christophe.leroy@csgroup.eu>
# Date:   Tue Dec 7 06:10:05 2021 +0000
# 
#     powerpc/603: Fix boot failure with DEBUG_PAGEALLOC and KFENCE
#     
#     Allthough kernel text is always mapped with BATs, we still have
#     inittext mapped with pages, so TLB miss handling is required
#     when CONFIG_DEBUG_PAGEALLOC or CONFIG_KFENCE is set.
#     
#     The final solution should be to set a BAT that also maps inittext
#     but that BAT then needs to be cleared at end of init, and it will
#     require more changes to be able to do it properly.
#     
#     As DEBUG_PAGEALLOC or KFENCE are debugging, performance is not a big
#     deal so let's fix it simply for now to enable easy stable application.
#     
#     Fixes: 035b19a15a98 ("powerpc/32s: Always map kernel text and rodata with BATs")
#     Cc: stable@vger.kernel.org # v5.11+
#     Reported-by: Maxime Bizon <mbizon@freebox.fr>
#     Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/aea33b4813a26bdb9378b5f273f00bd5d4abe240.1638857364.git.christophe.leroy@csgroup.eu
# < /opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-gcc --version
# < /opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-ld --version
# < git log --format=%s --max-count=1 9bb162fa26ed76031ed0e7dbc77ccea0bf977758
# < make -s -j 32 ARCH=sparc64 O=/kisskb/build/powerpc-fixes_sparc64-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  defconfig
# < make -s -j 32 ARCH=sparc64 O=/kisskb/build/powerpc-fixes_sparc64-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  help
# make -s -j 32 ARCH=sparc64 O=/kisskb/build/powerpc-fixes_sparc64-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  olddefconfig
# make -s -j 32 ARCH=sparc64 O=/kisskb/build/powerpc-fixes_sparc64-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  
<stdin>:1517:2: warning: #warning syscall clone3 not implemented [-Wcpp]
WARNING: modpost: EXPORT symbol "_mcount" [vmlinux] version ...
Is "_mcount" prototyped in <asm/asm-prototypes.h>?
  kernel: arch/sparc/boot/image is ready
  kernel: arch/sparc/boot/zImage is ready
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_sparc64-defconfig_sparc64
# Build took: 0:00:52.846496