# git rev-parse -q --verify fffe3ae0ee84e25d2befe2ae59bc32aa2b6bc77b^{commit}
fffe3ae0ee84e25d2befe2ae59bc32aa2b6bc77b
already have revision, skipping fetch
# git checkout -q -f -B kisskb fffe3ae0ee84e25d2befe2ae59bc32aa2b6bc77b
# git clean -qxdf
# < git log -1
# commit fffe3ae0ee84e25d2befe2ae59bc32aa2b6bc77b
# Merge: 8f7be6291529 7d17e83abec1
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Wed Aug 5 13:28:50 2020 -0700
# 
#     Merge tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
#     
#     Pull hmm updates from Jason Gunthorpe:
#      "Ralph has been working on nouveau's use of hmm_range_fault() and
#       migrate_vma() which resulted in this small series. It adds reporting
#       of the page table order from hmm_range_fault() and some optimization
#       of migrate_vma():
#     
#        - Report the size of the page table mapping out of hmm_range_fault().
#     
#          This makes it easier to establish a large/huge/etc mapping in the
#          device's page table.
#     
#        - Allow devices to ignore the invalidations during migration in cases
#          where the migration is not going to change pages.
#     
#          For instance migrating pages to a device does not require the
#          device to invalidate pages already in the device.
#     
#        - Update nouveau and hmm_tests to use the above"
#     
#     * tag 'for-linus-hmm' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
#       mm/hmm/test: use the new migration invalidation
#       nouveau/svm: use the new migration invalidation
#       mm/notifier: add migration invalidation type
#       mm/migrate: add a flags parameter to migrate_vma
#       nouveau: fix storing invalid ptes
#       nouveau/hmm: support mapping large sysmem pages
#       nouveau: fix mapping 2MB sysmem pages
#       nouveau/hmm: fault one page at a time
#       mm/hmm: add tests for hmm_pfn_to_map_order()
#       mm/hmm: provide the page mapping order in hmm_range_fault()
# < /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 fffe3ae0ee84e25d2befe2ae59bc32aa2b6bc77b
# < make -s -j 80 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  randconfig
KCONFIG_SEED=0xEDCC7EDE
# Added to kconfig CONFIG_STANDALONE=y
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# Added to kconfig CONFIG_CPU_BIG_ENDIAN=y
# Added to kconfig CONFIG_PPC64=y
# Added to kconfig CONFIG_PPC_DISABLE_WERROR=y
# Added to kconfig CONFIG_SECTION_MISMATCH_WARN_ONLY=y
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=n
# Added to kconfig CONFIG_GCC_PLUGINS=n
# Added to kconfig CONFIG_LD_HEAD_STUB_CATCH=y
# Added to kconfig CONFIG_TRIM_UNUSED_KSYMS=n
# Added to kconfig CONFIG_UBSAN=n
# < make -s -j 80 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 80 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
.config:5079:warning: override: reassigning to symbol STANDALONE
.config:5084:warning: override: reassigning to symbol PPC_DISABLE_WERROR
.config:5085:warning: override: reassigning to symbol SECTION_MISMATCH_WARN_ONLY
.config:5091:warning: override: reassigning to symbol UBSAN
# make -s -j 80 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
BTF: .tmp_vmlinux.btf: pahole (pahole) is not available
Failed to generate BTF for vmlinux
Try to disable CONFIG_DEBUG_INFO_BTF
make[1]: *** [/kisskb/src/Makefile:1149: vmlinux] Error 1
make: *** [Makefile:185: __sub-make] Error 2
Command 'make -s -j 80 ARCH=powerpc O=/kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus-rand_powerpc-randconfig_powerpc-gcc9
# Build took: 0:04:00.835016