Buildresult: powerpc-fixes/sparc64-defconfig/sparc64-gcc5 built on Dec 9 2018, 23:06

kisskb

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Status:	OK
Date/Time:	Dec 9 2018, 23:06
Duration:	0:01:07.874352
Builder:	ka1
Revision:	powerpc/mm: Fallback to RAM if the altmap is unusable (`9ef34630a4614ee1cd478f9859ebea55d55f10ec)`
Target:	powerpc-fixes/sparc64-defconfig/sparc64-gcc5
Branch:	powerpc-fixes
Compiler:	sparc64-gcc5 (sparc64-linux-gcc.br_real (Buildroot 2016.11-git-00613-ge98b4dd) 5.4.0)
Config:	defconfig (download)
Log:	Download original Possible warnings (3) <stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp] WARNING: EXPORT symbol "_mcount" [vmlinux] version generation failed, symbol will not be versioned. WARNING: EXPORT symbol "_mcount" [vmlinux] version generation failed, symbol will not be versioned. Full Log # git rev-parse -q --verify 9ef34630a4614ee1cd478f9859ebea55d55f10ec^{commit} 9ef34630a4614ee1cd478f9859ebea55d55f10ec already have revision, skipping fetch # git checkout -q -f -B kisskb 9ef34630a4614ee1cd478f9859ebea55d55f10ec # git clean -qxdf # < git log -1 # commit 9ef34630a4614ee1cd478f9859ebea55d55f10ec # Author: Oliver O'Halloran <oohall@gmail.com> # Date: Fri Dec 7 02:17:14 2018 +1100 # # powerpc/mm: Fallback to RAM if the altmap is unusable # # The "altmap" is used to provide a pool of memory that is reserved for # the vmemmap backing of hot-plugged memory. This is useful when adding # large amount of ZONE_DEVICE memory to a system with a limited amount of # normal memory. # # On ppc64 we use huge pages to map the vmemmap which requires the backing # storage to be contigious and aligned to the hugepage size. The altmap # implementation allows for the altmap provider to reserve a few PFNs at # the start of the range for it's own uses and when this occurs the # first chunk of the altmap is not usable for hugepage mappings. On hash # there is no sane way to fall back to a normal sized page mapping so we # fail the allocation. This results in memory hotplug failing with # ENOMEM when the new range doesn't fall into an existing vmemmap block. # # This patch handles this case by falling back to using system memory # rather than failing if we cannot allocate from the altmap. This # fallback should only ever be used for the first vmemmap block so it # should not cause excess memory consumption. # # Fixes: 7b73d978a5d0 ("mm: pass the vmem_altmap to vmemmap_populate") # Signed-off-by: Oliver O'Halloran <oohall@gmail.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # < /opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-gcc --version # < git log --format=%s --max-count=1 9ef34630a4614ee1cd478f9859ebea55d55f10ec # < make -s -j 48 ARCH=sparc64 O=/kisskb/build/powerpc-fixes_sparc64-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux- defconfig # make -s -j 48 ARCH=sparc64 O=/kisskb/build/powerpc-fixes_sparc64-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux- <stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp] WARNING: EXPORT symbol "_mcount" [vmlinux] version generation failed, symbol will not be versioned. WARNING: EXPORT symbol "_mcount" [vmlinux] version generation failed, symbol will not be versioned. kernel: arch/sparc/boot/image is ready kernel: arch/sparc/boot/zImage is ready Completed OK # rm -rf /kisskb/build/powerpc-fixes_sparc64-defconfig_sparc64 # Build took: 0:01:07.874352

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