# git rev-parse -q --verify 8f0c636b05429d3a83993074c35fce62eb9856ef^{commit} 8f0c636b05429d3a83993074c35fce62eb9856ef already have revision, skipping fetch # git checkout -q -f -B kisskb 8f0c636b05429d3a83993074c35fce62eb9856ef # git clean -qxdf # < git log -1 # commit 8f0c636b05429d3a83993074c35fce62eb9856ef # Author: Aneesh Kumar K.V # 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 # Signed-off-by: Michael Ellerman # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < git log --format=%s --max-count=1 8f0c636b05429d3a83993074c35fce62eb9856ef # < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_powerpc-allmodconfig_powerpc-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux- allmodconfig # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_MODULE_SIG=n # Added to kconfig CONFIG_SAMPLES=n # yes \n | make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_powerpc-allmodconfig_powerpc-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux- oldconfig yes: standard output: Broken pipe # make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_powerpc-allmodconfig_powerpc-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux- In file included from /kisskb/src/arch/powerpc/include/asm/paca.h:19, from /kisskb/src/arch/powerpc/include/asm/current.h:16, from /kisskb/src/include/linux/sched.h:12, from /kisskb/src/kernel/debug/kdb/kdb_support.c:15: In function 'strncpy', inlined from 'kallsyms_symbol_next' at /kisskb/src/kernel/debug/kdb/kdb_support.c:239:4: /kisskb/src/include/linux/string.h:246:9: warning: '__builtin_strncpy' specified bound depends on the length of the source argument [-Wstringop-overflow=] return __builtin_strncpy(p, q, size); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /kisskb/src/kernel/debug/kdb/kdb_support.c: In function 'kallsyms_symbol_next': /kisskb/src/include/linux/string.h:267:10: note: length computed here return __builtin_strlen(p); ^~~~~~~~~~~~~~~~~~~ /kisskb/src/sound/aoa/codecs/onyx.c: In function 'onyx_snd_single_bit_get': /kisskb/src/sound/aoa/codecs/onyx.c:380:37: warning: 'c' may be used uninitialized in this function [-Wmaybe-uninitialized] ucontrol->value.integer.value[0] = !!(c & mask) ^ polarity; ^~~~~~~~~~~~ In file included from /kisskb/src/arch/powerpc/include/asm/paca.h:19, from /kisskb/src/arch/powerpc/include/asm/hw_irq.h:64, from /kisskb/src/arch/powerpc/include/asm/irqflags.h:12, from /kisskb/src/include/linux/irqflags.h:16, from /kisskb/src/include/linux/spinlock.h:54, from /kisskb/src/include/linux/seqlock.h:36, from /kisskb/src/include/linux/time.h:6, from /kisskb/src/include/linux/stat.h:19, from /kisskb/src/include/linux/module.h:10, from /kisskb/src/lib/test_hexdump.c:8: In function 'strncpy', inlined from 'test_hexdump_prepare_test.isra.0' at /kisskb/src/lib/test_hexdump.c:102:3: /kisskb/src/include/linux/string.h:246:9: warning: '__builtin_strncpy' specified bound depends on the length of the source argument [-Wstringop-overflow=] return __builtin_strncpy(p, q, size); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /kisskb/src/lib/test_hexdump.c: In function 'test_hexdump_prepare_test.isra.0': /kisskb/src/include/linux/string.h:267:10: note: length computed here return __builtin_strlen(p); ^~~~~~~~~~~~~~~~~~~ /kisskb/src/drivers/scsi/esas2r/esas2r_ioctl.c: In function 'esas2r_write_vda': /kisskb/src/drivers/scsi/esas2r/esas2r_ioctl.c:1910:19: warning: 'dma_addr' may be used uninitialized in this function [-Wmaybe-uninitialized] a->ppvda_buffer = dma_addr; ~~~~~~~~~~~~~~~~^~~~~~~~~~ In file included from /kisskb/src/arch/powerpc/include/asm/paca.h:19, from /kisskb/src/arch/powerpc/include/asm/hw_irq.h:64, from /kisskb/src/arch/powerpc/include/asm/irqflags.h:12, from /kisskb/src/include/linux/irqflags.h:16, from /kisskb/src/include/linux/spinlock.h:54, from /kisskb/src/include/linux/seqlock.h:36, from /kisskb/src/include/linux/time.h:6, from /kisskb/src/include/linux/stat.h:19, from /kisskb/src/include/linux/module.h:10, from /kisskb/src/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c:27: In function 'strncat', inlined from 'ibmvscsis_probe' at /kisskb/src/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c:3478:2: /kisskb/src/include/linux/string.h:313:10: warning: '__builtin_strncat' specified bound 64 equals destination size [-Wstringop-overflow=] return __builtin_strncat(p, q, count); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /kisskb/src/scripts/unifdef.c: In function 'Mpass': /kisskb/src/scripts/unifdef.c:453:28: warning: 'strncpy' output truncated before terminating nul copying 4 bytes from a string of the same length [-Wstringop-truncation] static void Mpass (void) { strncpy(keyword, "if ", 4); Pelif(); } ^~~~~~~~~~~~~~~~~~~~~~~~~~~ /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: warning: orphan section `.gnu.hash' from `linker stubs' being placed in section `.gnu.hash'. /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: warning: orphan section `.gnu.hash' from `linker stubs' being placed in section `.gnu.hash'. /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld: warning: orphan section `.gnu.hash' from `linker stubs' being placed in section `.gnu.hash'. Completed OK # rm -rf /kisskb/build/powerpc-next_powerpc-allmodconfig_powerpc-gcc8 # Build took: 0:05:06.717228