Buildresult: linus/s390-defconfig/s390x-gcc11 built on Feb 4 2022, 04:06

kisskb

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Status:	Failed
Date/Time:	Feb 4 2022, 04:06
Duration:	0:06:22.293263
Builder:	blade4b
Revision:	Revert "mm/gup: small refactoring: simplify try_grab_page()" (`c36c04c2e132fc39f6b658bf607aed4425427fd7)`
Target:	linus/s390-defconfig/s390x-gcc11
Branch:	linus
Compiler:	s390x-gcc11 (s390-linux-gcc (GCC) 11.1.0 / GNU ld (GNU Binutils) 2.36.1)
Config:	defconfig (download)
Log:	Download original Possible errors make[1]: * [Makefile:1155: vmlinux] Error 1 make: * [Makefile:219: __sub-make] Error 2 No warnings found in log. Full Log # git rev-parse -q --verify c36c04c2e132fc39f6b658bf607aed4425427fd7^{commit} c36c04c2e132fc39f6b658bf607aed4425427fd7 already have revision, skipping fetch # git checkout -q -f -B kisskb c36c04c2e132fc39f6b658bf607aed4425427fd7 # git clean -qxdf # < git log -1 # commit c36c04c2e132fc39f6b658bf607aed4425427fd7 # Author: John Hubbard <jhubbard@nvidia.com> # Date: Tue Feb 1 19:23:17 2022 -0800 # # Revert "mm/gup: small refactoring: simplify try_grab_page()" # # This reverts commit 54d516b1d62ff8f17cee2da06e5e4706a0d00b8a # # That commit did a refactoring that effectively combined fast and slow # gup paths (again). And that was again incorrect, for two reasons: # # a) Fast gup and slow gup get reference counts on pages in different # ways and with different goals: see Linus' writeup in commit # cd1adf1b63a1 ("Revert "mm/gup: remove try_get_page(), call # try_get_compound_head() directly""), and # # b) try_grab_compound_head() also has a specific check for # "FOLL_LONGTERM && !is_pinned(page)", that assumes that the caller # can fall back to slow gup. This resulted in new failures, as # recently report by Will McVicker [1]. # # But (a) has problems too, even though they may not have been reported # yet. So just revert this. # # Link: https://lore.kernel.org/r/20220131203504.3458775-1-willmcvicker@google.com [1] # Fixes: 54d516b1d62f ("mm/gup: small refactoring: simplify try_grab_page()") # Reported-and-tested-by: Will McVicker <willmcvicker@google.com> # Cc: Christoph Hellwig <hch@lst.de> # Cc: Minchan Kim <minchan@google.com> # Cc: Matthew Wilcox <willy@infradead.org> # Cc: Christian Borntraeger <borntraeger@de.ibm.com> # Cc: Heiko Carstens <hca@linux.ibm.com> # Cc: Vasily Gorbik <gor@linux.ibm.com> # Cc: stable@vger.kernel.org # 5.15 # Signed-off-by: John Hubbard <jhubbard@nvidia.com> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/s390-linux/bin/s390-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/s390-linux/bin/s390-linux-ld --version # < git log --format=%s --max-count=1 c36c04c2e132fc39f6b658bf607aed4425427fd7 # < make -s -j 24 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/s390-linux/bin/s390-linux- defconfig # < make -s -j 24 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/s390-linux/bin/s390-linux- help # make -s -j 24 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/s390-linux/bin/s390-linux- olddefconfig # make -s -j 24 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/s390-linux/bin/s390-linux- MKDIR /kisskb/build/linus_s390-defconfig_s390x-gcc11/tools/bpf/resolve_btfids/libbpf/ MKDIR /kisskb/build/linus_s390-defconfig_s390x-gcc11/tools/bpf/resolve_btfids//libsubcmd LINK resolve_btfids BTF: .tmp_vmlinux.btf: pahole version v1.12 is too old, need at least v1.16 Failed to generate BTF for vmlinux Try to disable CONFIG_DEBUG_INFO_BTF make[1]: * [/kisskb/src/Makefile:1155: vmlinux] Error 1 make: * [Makefile:219: __sub-make] Error 2 Command 'make -s -j 24 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/s390-linux/bin/s390-linux- ' returned non-zero exit status 2 # rm -rf /kisskb/build/linus_s390-defconfig_s390x-gcc11 # Build took: 0:06:22.293263

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