Buildresult: powerpc-fixes/sparc64-defconfig/sparc64-gcc5 built on Jul 18 2018, 01:29

kisskb

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Status:	OK
Date/Time:	Jul 18 2018, 01:29
Duration:	0:00:28.205314
Builder:	ka4
Revision:	powerpc/powernv: Save & Restore SPRG3 on entry/exit from stop (idle) (`34f0ee3c18c1ba6b31eea86c1e154ef1a7f31d56)`
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 (4) <stdin>:1332:2: warning: #warning syscall io_pgetevents not implemented [-Wcpp] <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 34f0ee3c18c1ba6b31eea86c1e154ef1a7f31d56^{commit} 34f0ee3c18c1ba6b31eea86c1e154ef1a7f31d56 already have revision, skipping fetch # git checkout -q -f -B kisskb 34f0ee3c18c1ba6b31eea86c1e154ef1a7f31d56 # git clean -qxdf # < git log -1 # commit 34f0ee3c18c1ba6b31eea86c1e154ef1a7f31d56 # Author: Gautham R. Shenoy <ego@linux.vnet.ibm.com> # Date: Tue Jul 17 16:57:29 2018 +0530 # # powerpc/powernv: Save & Restore SPRG3 on entry/exit from stop (idle) # # On 64-bit Servers, SPRN_SPRG3 and its userspace read-only mirror # SPRN_USPRG3 are used as userspace VDSO write and read registers # respectively. # # SPRN_SPRG3 is lost when we enter stop4 and above, and is currently not # restored. As a result, any read from SPRN_USPRG3 returns zero on an # exit from stop4 and above. This affects Power9 only. # # Thus in this situation, any call from sched_getcpu() always returns # zero, as on powerpc, we call __kernel_getcpu() which relies upon # SPRN_USPRG3 to report the CPU and NUMA node information. # # Fix this by saving the SPRN_SPRG3 before entering a deep stop state, # and restoring it back on wakeup from the stop state. # # Fixes: e1c1cfed5432 ("powerpc/powernv: Save/Restore additional SPRs for stop4 cpuidle") # Cc: stable@vger.kernel.org # v4.14+ # Reported-by: Florian Weimer <fweimer@redhat.com> # Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.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 34f0ee3c18c1ba6b31eea86c1e154ef1a7f31d56 # < make -s -j 120 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 120 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>:1332:2: warning: #warning syscall io_pgetevents not implemented [-Wcpp] <stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp] WARNING: EXPORT symbol "_mcount" [vmlinux] version generation failed, symbol will not be versioned. kernel: arch/sparc/boot/image is ready WARNING: EXPORT symbol "_mcount" [vmlinux] version generation failed, symbol will not be versioned. kernel: arch/sparc/boot/zImage is ready Completed OK # rm -rf /kisskb/build/powerpc-fixes_sparc64-defconfig_sparc64 # Build took: 0:00:28.205314

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