# git rev-parse -q --verify d17498fb9ce6ffee2f68568e28b41b486c179193^{commit}
d17498fb9ce6ffee2f68568e28b41b486c179193
already have revision, skipping fetch
# git checkout -q -f -B kisskb d17498fb9ce6ffee2f68568e28b41b486c179193
# git clean -qxdf
# < git log -1
# commit d17498fb9ce6ffee2f68568e28b41b486c179193
# Author: Christophe Leroy <christophe.leroy@csgroup.eu>
# Date:   Tue Dec 22 07:11:18 2020 +0000
# 
#     powerpc/32s: Fix RTAS machine check with VMAP stack
#     
#     When we have VMAP stack, exception prolog 1 sets r1, not r11.
#     
#     When it is not an RTAS machine check, don't trash r1 because it is
#     needed by prolog 1.
#     
#     Fixes: da7bb43ab9da ("powerpc/32: Fix vmap stack - Properly set r1 before activating MMU")
#     Fixes: d2e006036082 ("powerpc/32: Use SPRN_SPRG_SCRATCH2 in exception prologs")
#     Cc: stable@vger.kernel.org # v5.10+
#     Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
#     [mpe: Squash in fixup for RTAS machine check from Christophe]
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/bc77d61d1c18940e456a2dee464f1e2eda65a3f0.1608621048.git.christophe.leroy@csgroup.eu
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 d17498fb9ce6ffee2f68568e28b41b486c179193
# < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_44x_bamboo_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  44x/bamboo_defconfig
# make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_44x_bamboo_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
INFO: Uncompressed kernel (size 0x4e0e10) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x500000)
INFO: Uncompressed kernel (size 0x4e0e10) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x500000)
Image Name:   Linux-5.10.0-gd17498fb9ce6
Created:      Sat Dec 26 13:35:16 2020
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    2470505 Bytes = 2412.60 KiB = 2.36 MiB
Load Address: 00500000
Entry Point:  005001b8
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_44x_bamboo_defconfig_powerpc-gcc5
# Build took: 0:00:26.499910