# git rev-parse -q --verify 7f46774c6480174eb869a3c15167eafac467a6af^{commit}
7f46774c6480174eb869a3c15167eafac467a6af
already have revision, skipping fetch
# git checkout -q -f -B kisskb 7f46774c6480174eb869a3c15167eafac467a6af
# git clean -qxdf
# < git log -1
# commit 7f46774c6480174eb869a3c15167eafac467a6af
# Merge: c7084edc3f6d 5b56d996dd50
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Fri Apr 5 06:09:53 2019 -1000
# 
#     Merge tag 'mm-compaction-5.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mel/linux
#     
#     Pull mm/compaction fixes from Mel Gorman:
#      "The merge window for 5.1 introduced a number of compaction-related
#       patches. with intermittent reports of corruption and functional
#       issues. The bugs are due to sloopy checking of zone boundaries and a
#       corner case where invalid indexes are used to access the free lists.
#     
#       Reports are not common but at least two users and 0-day have tripped
#       over them. There is a chance that one of the syzbot reports are
#       related but it has not been confirmed properly.
#     
#       The normal submission path is with Andrew but there have been some
#       delays and I consider them urgent enough that they should be picked up
#       before RC4 to avoid duplicate reports.
#     
#       All of these have been successfully tested on older RC windows. This
#       will make this branch look like a rebase but in fact, they've simply
#       been lifted again from Andrew's tree and placed on a fresh branch.
#       I've no reason to believe that this has invalidated the testing given
#       the lack of change in compaction and the nature of the fixes"
#     
#     * tag 'mm-compaction-5.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mel/linux:
#       mm/compaction.c: abort search if isolation fails
#       mm/compaction.c: correct zone boundary handling when resetting pageblock skip hints
# < /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 7f46774c6480174eb869a3c15167eafac467a6af
# < make -s -j 120 ARCH=powerpc O=/kisskb/build/linus_pseries_le_defconfig+NO_NUMA_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  pseries_le_defconfig
# Added to kconfig CONFIG_NUMA=n
# yes \n | make -s -j 120 ARCH=powerpc O=/kisskb/build/linus_pseries_le_defconfig+NO_NUMA_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  oldconfig
yes: standard output: Broken pipe
# make -s -j 120 ARCH=powerpc O=/kisskb/build/linus_pseries_le_defconfig+NO_NUMA_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
<stdin>:1478:2: warning: #warning syscall pidfd_send_signal not implemented [-Wcpp]
<stdin>:1481:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
<stdin>:1484:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
<stdin>:1487:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
/kisskb/src/net/netfilter/nf_nat_masquerade.c:15:21: warning: 'masq_refcnt6' defined but not used [-Wunused-variable]
 static unsigned int masq_refcnt6 __read_mostly;
                     ^
WARNING: vmlinux.o(.text+0x2fac): Section mismatch in reference from the variable __boot_from_prom to the function .init.text:prom_init()
The function __boot_from_prom() references
the function __init prom_init().
This is often because __boot_from_prom lacks a __init 
annotation or the annotation of prom_init is wrong.

WARNING: vmlinux.o(.text+0x3228): Section mismatch in reference from the variable start_here_multiplatform to the function .init.text:early_setup()
The function start_here_multiplatform() references
the function __init early_setup().
This is often because start_here_multiplatform lacks a __init 
annotation or the annotation of early_setup is wrong.

WARNING: vmlinux.o(.text+0x325c): Section mismatch in reference from the variable start_here_common to the function .init.text:start_kernel()
The function start_here_common() references
the function __init start_kernel().
This is often because start_here_common lacks a __init 
annotation or the annotation of start_kernel is wrong.

Completed OK
# rm -rf /kisskb/build/linus_pseries_le_defconfig+NO_NUMA_ppc64le-gcc5
# Build took: 0:01:29.012096