# git rev-parse -q --verify fc61b90e905ded24ba5ca0697677894a5586e2f5^{commit}
fc61b90e905ded24ba5ca0697677894a5586e2f5
already have revision, skipping fetch
# git checkout -q -f -B kisskb fc61b90e905ded24ba5ca0697677894a5586e2f5
# git clean -qxdf
# < git log -1
# commit fc61b90e905ded24ba5ca0697677894a5586e2f5
# Author: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
# Date:   Tue Sep 17 20:27:00 2019 +0530
# 
#     powerpc/book3s64/hash/4k: 4k supports only 16TB linear mapping
#     
#     With commit: 0034d395f89d ("powerpc/mm/hash64: Map all the kernel
#     regions in the same 0xc range"), we now split the 64TB address range
#     into 4 contexts each of 16TB. That implies we can do only 16TB linear
#     mapping. Make sure we don't add physical memory above 16TB if that is
#     present in the system.
#     
#     Fixes: 0034d395f89d ("powerpc/mm/hash64: Map all the kernel regions in thesame 0xc range")
#     Reported-by: Cameron Berkenpas <cam@neo-zeon.de>
#     Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20190917145702.9214-1-aneesh.kumar@linux.ibm.com
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld --version
# < git log --format=%s --max-count=1 fc61b90e905ded24ba5ca0697677894a5586e2f5
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc885_ads_defconfig+HUGETLB_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  mpc885_ads_defconfig
# Added to kconfig CONFIG_HUGETLBFS=y
# yes \n | make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc885_ads_defconfig+HUGETLB_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  oldconfig
yes: standard output: Broken pipe
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc885_ads_defconfig+HUGETLB_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:194:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c: In function 'proc_reg_open':
/kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c:338:21: note: 'pdeo' was declared here
/kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page':
/kisskb/src/mm/hugetlb.c:1465:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized]
Image Name:   Linux-5.3.0-gfc61b90e905d
Created:      Sun Sep 29 00:15:05 2019
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    1870641 Bytes = 1826.80 KiB = 1.78 MiB
Load Address: 00400000
Entry Point:  004001dc
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_mpc885_ads_defconfig+HUGETLB_powerpc-gcc4.6
# Build took: 0:00:43.841866