Buildresult: linus/tct_hammer_defconfig/arm-gcc4.9 built on Sep 8 2021, 06:21

kisskb

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Status:	OK
Date/Time:	Sep 8 2021, 06:21
Duration:	0:00:20.626883
Builder:	ka7
Revision:	Revert "memcg: enable accounting for pollfd and select bits arrays" (`0bcfe68b876748762557797a940d0a82de700629)`
Target:	linus/tct_hammer_defconfig/arm-gcc4.9
Branch:	linus
Compiler:	arm-gcc4.9 (arm-linux-gnueabi-gcc (GCC) 4.9.4 / GNU ld (GNU Binutils) 2.29.1.20170915)
Config:	tct_hammer_defconfig (download)
Log:	Download original No warnings found in log. Full Log # git rev-parse -q --verify 0bcfe68b876748762557797a940d0a82de700629^{commit} 0bcfe68b876748762557797a940d0a82de700629 already have revision, skipping fetch # git checkout -q -f -B kisskb 0bcfe68b876748762557797a940d0a82de700629 # git clean -qxdf # < git log -1 # commit 0bcfe68b876748762557797a940d0a82de700629 # Author: Linus Torvalds <torvalds@linux-foundation.org> # Date: Tue Sep 7 11:26:23 2021 -0700 # # Revert "memcg: enable accounting for pollfd and select bits arrays" # # This reverts commit b655843444152c0a14b749308e4cb35d91cbcf0b. # # Just like with the memcg lock accounting, the kernel test robot reports # a sizeable performance regression for this commit, and while it clearly # does the rigth thing in theory, we'll need to look at just how to avoid # or minimize the performance overhead of the memcg accounting. # # People already have suggestions on how to do that, but it's "future # work". # # So revert it for now. # # [ Note: the first link below is for this same commit but a different # commit ID, because it's the kernel test robot ended up noticing it in # Andrew Morton's patch queue ] # # Link: https://lore.kernel.org/lkml/20210905132732.GC15026@xsang-OptiPlex-9020/ # Link: https://lore.kernel.org/lkml/20210907150757.GE17617@xsang-OptiPlex-9020/ # Acked-by: Jens Axboe <axboe@kernel.dk> # Acked-by: Shakeel Butt <shakeelb@google.com> # Acked-by: Roman Gushchin <guro@fb.com> # Cc: Tejun Heo <tj@kernel.org> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-gcc --version # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-ld --version # < git log --format=%s --max-count=1 0bcfe68b876748762557797a940d0a82de700629 # < make -s -j 32 ARCH=arm O=/kisskb/build/linus_tct_hammer_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi- tct_hammer_defconfig # < make -s -j 32 ARCH=arm O=/kisskb/build/linus_tct_hammer_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi- help # make -s -j 32 ARCH=arm O=/kisskb/build/linus_tct_hammer_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi- olddefconfig # make -s -j 32 ARCH=arm O=/kisskb/build/linus_tct_hammer_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi- Completed OK # rm -rf /kisskb/build/linus_tct_hammer_defconfig_arm-gcc4.9 # Build took: 0:00:20.626883

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