# git rev-parse -q --verify 4ffe713b7587b14695c9bec26a000fc88ef54895^{commit}
4ffe713b7587b14695c9bec26a000fc88ef54895
already have revision, skipping fetch
# git checkout -q -f -B kisskb 4ffe713b7587b14695c9bec26a000fc88ef54895
# git clean -qxdf
# < git log -1
# commit 4ffe713b7587b14695c9bec26a000fc88ef54895
# Author: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
# Date:   Thu Sep 20 14:03:58 2018 +0530
# 
#     powerpc/mm: Increase the max addressable memory to 2PB
#     
#     Currently we limit the max addressable memory to 128TB. This patch increase the
#     limit to 2PB. We can have devices like nvdimm which adds memory above 512TB
#     limit.
#     
#     We still don't support regular system ram above 512TB. One of the challenge with
#     that is the percpu allocator, that allocates per node memory and use the max
#     distance between them as the percpu offsets. This means with large gap in
#     address space ( system ram above 1PB) we will run out of vmalloc space to map
#     the percpu allocation.
#     
#     In order to support addressable memory above 512TB, kernel should be able to
#     linear map this range. To do that with hash translation we now add 4 context
#     to kernel linear map region. Our per context addressable range is 512TB. We
#     still keep VMALLOC and VMEMMAP region to old size. SLB miss handlers is updated
#     to validate these limit.
#     
#     We also limit this update to SPARSEMEM_VMEMMAP and SPARSEMEM_EXTREME
#     
#     Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < git log --format=%s --max-count=1 4ffe713b7587b14695c9bec26a000fc88ef54895
# < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  randconfig
KCONFIG_SEED=0x18CF6870
# 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 
# yes \n | make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-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/powerpc-next-rand_powerpc-randconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
In file included from /kisskb/src/arch/powerpc/xmon/xmon.c:67:0:
/kisskb/src/arch/powerpc/xmon/dis-asm.h: In function 'print_insn_powerpc':
/kisskb/src/arch/powerpc/xmon/dis-asm.h:20:9: warning: format '%x' expects argument of type 'unsigned int', but argument 2 has type 'long unsigned int' [-Wformat=]
  printf("%.8x", insn);
         ^
/kisskb/src/arch/powerpc/xmon/dis-asm.h: In function 'print_insn_spu':
/kisskb/src/arch/powerpc/xmon/dis-asm.h:26:9: warning: format '%x' expects argument of type 'unsigned int', but argument 2 has type 'long unsigned int' [-Wformat=]
  printf("%.8x", insn);
         ^
/kisskb/src/arch/powerpc/kernel/iommu.c:148:30: warning: 'fail_iommu_bus_notifier' defined but not used [-Wunused-variable]
 static struct notifier_block fail_iommu_bus_notifier = {
                              ^
In file included from /kisskb/src/include/linux/kernel.h:10:0,
                 from /kisskb/src/include/linux/list.h:9,
                 from /kisskb/src/include/linux/module.h:9,
                 from /kisskb/src/net/bridge/br_netfilter_hooks.c:17:
/kisskb/src/net/bridge/br_netfilter_hooks.c: In function 'br_nf_post_routing':
/kisskb/src/include/linux/compiler.h:177:26: warning: array subscript is above array bounds [-Warray-bounds]
  case 8: *(__u64 *)res = *(volatile __u64 *)p; break;  \
                          ^
/kisskb/src/include/linux/compiler.h:188:2: note: in expansion of macro '__READ_ONCE_SIZE'
  __READ_ONCE_SIZE;
  ^
WARNING: 4 bad relocations
c0000000000295a2 R_PPC64_ADDR16_HIGHEST  .head.text+0x00000000000295bc
c0000000000295a6 R_PPC64_ADDR16_HIGHER  .head.text+0x00000000000295bc
c0000000000295ae R_PPC64_ADDR16_HIGH  .head.text+0x00000000000295bc
c0000000000295b2 R_PPC64_ADDR16_LO  .head.text+0x00000000000295bc
INFO: Uncompressed kernel (size 0x2ff9380) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x3000000)
Image Name:   Linux-4.19.0-rc3+
Created:      Mon Oct 15 01:34:01 2018
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    12000395 Bytes = 11719.14 KiB = 11.44 MiB
Load Address: 00000000
Entry Point:  00000000
Completed OK
# rm -rf /kisskb/build/powerpc-next-rand_powerpc-randconfig_powerpc-gcc5
# Build took: 0:01:50.097141