Buildresult: linus/arm64-allmodconfig/arm64-gcc8 built on Mar 28 2022, 20:06

kisskb

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Status:	Failed
Date/Time:	Mar 28 2022, 20:06
Duration:	0:06:07.805086
Builder:	ka7
Revision:	mm: kfence: fix missing objcg housekeeping for SLAB (`ae085d7f9365de7da27ab5c0d16b12d51ea7fca9)`
Target:	linus/arm64-allmodconfig/arm64-gcc8
Branch:	linus
Compiler:	arm64-gcc8 (aarch64-linux-gcc (GCC) 8.1.0 / GNU ld (GNU Binutils) 2.30)
Config:	allmodconfig (download)
Log:	Download original Possible errors drivers/pci/controller/pci-hyperv.c:769:13: error: 'hv_set_msi_entry_from_desc' defined but not used [-Werror=unused-function] cc1: all warnings being treated as errors make[4]: * [scripts/Makefile.build:289: drivers/pci/controller/pci-hyperv.o] Error 1 make[3]: * [scripts/Makefile.build:551: drivers/pci/controller] Error 2 make[2]: * [scripts/Makefile.build:551: drivers/pci] Error 2 make[1]: * [Makefile:1830: drivers] Error 2 make: *** [Makefile:219: __sub-make] Error 2 No warnings found in log. Full Log # git rev-parse -q --verify ae085d7f9365de7da27ab5c0d16b12d51ea7fca9^{commit} ae085d7f9365de7da27ab5c0d16b12d51ea7fca9 already have revision, skipping fetch # git checkout -q -f -B kisskb ae085d7f9365de7da27ab5c0d16b12d51ea7fca9 # git clean -qxdf # < git log -1 # commit ae085d7f9365de7da27ab5c0d16b12d51ea7fca9 # Author: Muchun Song <songmuchun@bytedance.com> # Date: Sun Mar 27 13:18:52 2022 +0800 # # mm: kfence: fix missing objcg housekeeping for SLAB # # The objcg is not cleared and put for kfence object when it is freed, # which could lead to memory leak for struct obj_cgroup and wrong # statistics of NR_SLAB_RECLAIMABLE_B or NR_SLAB_UNRECLAIMABLE_B. # # Since the last freed object's objcg is not cleared, # mem_cgroup_from_obj() could return the wrong memcg when this kfence # object, which is not charged to any objcgs, is reallocated to other # users. # # A real word issue [1] is caused by this bug. # # Link: https://lore.kernel.org/all/000000000000cabcb505dae9e577@google.com/ [1] # Reported-by: syzbot+f8c45ccc7d5d45fc5965@syzkaller.appspotmail.com # Fixes: d3fb45f370d9 ("mm, kfence: insert KFENCE hooks for SLAB") # Signed-off-by: Muchun Song <songmuchun@bytedance.com> # Cc: Dmitry Vyukov <dvyukov@google.com> # Cc: Marco Elver <elver@google.com> # Cc: Andrew Morton <akpm@linux-foundation.org> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-ld --version # < git log --format=%s --max-count=1 ae085d7f9365de7da27ab5c0d16b12d51ea7fca9 # < make -s -j 32 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux- allmodconfig # < make -s -j 32 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux- help # make -s -j 32 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux- olddefconfig # make -s -j 32 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux- /kisskb/src/drivers/pci/controller/pci-hyperv.c:769:13: error: 'hv_set_msi_entry_from_desc' defined but not used [-Werror=unused-function] static void hv_set_msi_entry_from_desc(union hv_msi_entry msi_entry, ^~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors make[4]: [/kisskb/src/scripts/Makefile.build:289: drivers/pci/controller/pci-hyperv.o] Error 1 make[4]: * Waiting for unfinished jobs.... make[3]: * [/kisskb/src/scripts/Makefile.build:551: drivers/pci/controller] Error 2 make[2]: * [/kisskb/src/scripts/Makefile.build:551: drivers/pci] Error 2 make[2]: * Waiting for unfinished jobs.... make[1]: * [/kisskb/src/Makefile:1830: drivers] Error 2 make[1]: * Waiting for unfinished jobs.... make: * [Makefile:219: __sub-make] Error 2 Command 'make -s -j 32 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux- ' returned non-zero exit status 2 # rm -rf /kisskb/build/linus_arm64-allmodconfig_arm64-gcc8 # Build took: 0:06:07.805086

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