Buildresult: powerpc-fixes/ppc64_defconfig+NO_ALTIVEC/powerpc-gcc5 built on Aug 12 2019, 23:41

kisskb

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Status:	OK
Date/Time:	Aug 12 2019, 23:41
Duration:	0:01:51.563312
Builder:	ka4
Revision:	powerpc/64e: Drop stale call to smp_processor_id() which hangs SMP startup (`b9ee5e04fd77898208c51b1395fa0b5e8536f9b6)`
Target:	powerpc-fixes/ppc64_defconfig+NO_ALTIVEC/powerpc-gcc5
Branch:	powerpc-fixes
Compiler:	powerpc-gcc5 (powerpc64-linux-gcc (GCC) 5.5.0 / GNU ld (GNU Binutils) 2.29.1.20170915)
Config:	ppc64_defconfig+NO_ALTIVEC (download)
Log:	Download original Possible warnings (1) kernel/futex.c:1676:17: warning: 'oldval' may be used uninitialized in this function [-Wmaybe-uninitialized] Full Log # git rev-parse -q --verify b9ee5e04fd77898208c51b1395fa0b5e8536f9b6^{commit} b9ee5e04fd77898208c51b1395fa0b5e8536f9b6 already have revision, skipping fetch # git checkout -q -f -B kisskb b9ee5e04fd77898208c51b1395fa0b5e8536f9b6 # git clean -qxdf # < git log -1 # commit b9ee5e04fd77898208c51b1395fa0b5e8536f9b6 # Author: Christophe Leroy <christophe.leroy@c-s.fr> # Date: Thu Aug 8 12:48:26 2019 +0000 # # powerpc/64e: Drop stale call to smp_processor_id() which hangs SMP startup # # Commit ebb9d30a6a74 ("powerpc/mm: any thread in one core can be the # first to setup TLB1") removed the need to know the cpu_id in # early_init_this_mmu(), but the call to smp_processor_id() which was # marked __maybe_used remained. # # Since commit ed1cd6deb013 ("powerpc: Activate CONFIG_THREAD_INFO_IN_TASK") # thread_info cannot be reached before MMU is properly set up. # # Drop this stale call to smp_processor_id() which makes SMP hang when # CONFIG_PREEMPT is set. # # Fixes: ebb9d30a6a74 ("powerpc/mm: any thread in one core can be the first to setup TLB1") # Fixes: ed1cd6deb013 ("powerpc: Activate CONFIG_THREAD_INFO_IN_TASK") # Cc: stable@vger.kernel.org # v5.1+ # Reported-by: Chris Packham <Chris.Packham@alliedtelesis.co.nz> # Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> # Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Link: https://lore.kernel.org/r/bef479514f4c08329fa649f67735df8918bc0976.1565268248.git.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 b9ee5e04fd77898208c51b1395fa0b5e8536f9b6 # < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64_defconfig+NO_ALTIVEC_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- ppc64_defconfig # Added to kconfig CONFIG_ALTIVEC=n # Added to kconfig CONFIG_PPC_TRANSACTIONAL_MEM=n # yes \n \| make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc64_defconfig+NO_ALTIVEC_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-fixes_ppc64_defconfig+NO_ALTIVEC_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- /kisskb/src/kernel/futex.c: In function 'do_futex': /kisskb/src/kernel/futex.c:1676:17: warning: 'oldval' may be used uninitialized in this function [-Wmaybe-uninitialized] return oldval == cmparg; ^ /kisskb/src/kernel/futex.c:1651:6: note: 'oldval' was declared here int oldval, ret; ^ Completed OK # rm -rf /kisskb/build/powerpc-fixes_ppc64_defconfig+NO_ALTIVEC_powerpc-gcc5 # Build took: 0:01:51.563312

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