# git rev-parse -q --verify e3a36ba92d97c153c65c3866ec0e83e4e7de7c86^{commit}
e3a36ba92d97c153c65c3866ec0e83e4e7de7c86
already have revision, skipping fetch
# git checkout -q -f -B kisskb e3a36ba92d97c153c65c3866ec0e83e4e7de7c86
# git clean -qxdf
# < git log -1
# commit e3a36ba92d97c153c65c3866ec0e83e4e7de7c86
# Author: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
# Date:   Wed May 30 18:02:25 2018 +0530
# 
#     powerpc/mm: Fix kernel crash on page table free
#     
#     Fix the below crash on Book3E 64. pgtable_page_dtor expects struct
#     page *arg.
#     
#     Also call the destructor on non book3s platforms correctly. This frees
#     up the split PTL locks correctly if we had allocated them before.
#     
#     Call Trace:
#       .kmem_cache_free+0x9c/0x44c (unreliable)
#       .ptlock_free+0x1c/0x30
#       .tlb_remove_table+0xdc/0x224
#       .free_pgd_range+0x298/0x500
#       .shift_arg_pages+0x10c/0x1e0
#       .setup_arg_pages+0x200/0x25c
#       .load_elf_binary+0x450/0x16c8
#       .search_binary_handler.part.11+0x9c/0x248
#       .do_execveat_common.isra.13+0x868/0xc18
#       .run_init_process+0x34/0x4c
#       .try_to_run_init_process+0x1c/0x68
#       .kernel_init+0xdc/0x130
#       .ret_from_kernel_thread+0x58/0x7c
#     
#     Fixes: 702346768 ("powerpc/mm/nohash: Remove pte fragment dependency from nohash")
#     Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < git log --format=%s --max-count=1 e3a36ba92d97c153c65c3866ec0e83e4e7de7c86
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc64_defconfig+NO_KVM_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ppc64_defconfig
# Added to kconfig CONFIG_KVM_BOOK3S_64=n
# Added to kconfig CONFIG_KVM=n
# yes \n | make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc64_defconfig+NO_KVM_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  oldconfig
yes: standard output: Broken pipe
yes: write error
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc64_defconfig+NO_KVM_powerpc-5.3 CROSS_COMPILE=/opt/cross/kisskb/gcc-5.3.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
Completed OK
# rm -rf /kisskb/build/powerpc-next_ppc64_defconfig+NO_KVM_powerpc-5.3
# Build took: 0:02:40.648733