# git rev-parse -q --verify 6e65827de2fe71d21682dafd9084ed2cc6e06d4f^{commit}
6e65827de2fe71d21682dafd9084ed2cc6e06d4f
already have revision, skipping fetch
# git checkout -q -f -B kisskb 6e65827de2fe71d21682dafd9084ed2cc6e06d4f
# git clean -qxdf
# < git log -1
# commit 6e65827de2fe71d21682dafd9084ed2cc6e06d4f
# Author: Daniel Axtens <dja@axtens.net>
# Date:   Thu Feb 21 14:03:45 2019 +0000
# 
#     powerpc: KASAN for 64bit Book3E
#     
#     Wire up KASAN. Only outline instrumentation is supported.
#     
#     The KASAN shadow area is mapped into vmemmap space:
#     0x8000 0400 0000 0000 to 0x8000 0600 0000 0000.
#     To do this we require that vmemmap be disabled. (This is the default
#     in the kernel config that QorIQ provides for the machine in their
#     SDK anyway - they use flat memory.)
#     
#     Only the kernel linear mapping (0xc000...) is checked. The vmalloc and
#     ioremap areas (also in 0x800...) are all mapped to a zero page. As
#     with the Book3S hash series, this requires overriding the memory <->
#     shadow mapping.
#     
#     Also, as with both previous 64-bit series, early instrumentation is not
#     supported.  It would allow us to drop the kasan_arch_is_ready()
#     hook in the KASAN core, but it's tricky to get it set up early enough:
#     we need it setup before the first call to instrumented code like printk().
#     Perhaps in the future.
#     
#     Only KASAN_MINIMAL works.
#     
#     Lightly tested on e6500. KVM, kexec and xmon have not been tested.
#     
#     The test_kasan module fires warnings as expected, except for the
#     following tests:
#     
#      - Expected/by design:
#     kasan test: memcg_accounted_kmem_cache allocate memcg accounted object
#     
#      - Due to only supporting KASAN_MINIMAL:
#     kasan test: kasan_stack_oob out-of-bounds on stack
#     kasan test: kasan_global_oob out-of-bounds global variable
#     kasan test: kasan_alloca_oob_left out-of-bounds to left on alloca
#     kasan test: kasan_alloca_oob_right out-of-bounds to right on alloca
#     kasan test: use_after_scope_test use-after-scope on int
#     kasan test: use_after_scope_test use-after-scope on array
#     
#     Thanks to those who have done the heavy lifting over the past several years:
#      - Christophe's 32 bit series: https://lists.ozlabs.org/pipermail/linuxppc-dev/2019-February/185379.html
#      - Aneesh's Book3S hash series: https://lwn.net/Articles/655642/
#      - Balbir's Book3S radix series: https://patchwork.ozlabs.org/patch/795211/
#     
#     Cc: Christophe Leroy <christophe.leroy@c-s.fr>
#     Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
#     Cc: Balbir Singh <bsingharora@gmail.com>
#     Signed-off-by: Daniel Axtens <dja@axtens.net>
#     Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
# < /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 6e65827de2fe71d21682dafd9084ed2cc6e06d4f
# < make -s -j 80 ARCH=powerpc O=/kisskb/build/chleroy_ps3_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ps3_defconfig
# make -s -j 80 ARCH=powerpc O=/kisskb/build/chleroy_ps3_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
Completed OK
# rm -rf /kisskb/build/chleroy_ps3_defconfig_powerpc-gcc5
# Build took: 0:01:38.371513