# git rev-parse -q --verify f9e2bb42cf0db3a624d295122db3475aa3e7ad18^{commit}
f9e2bb42cf0db3a624d295122db3475aa3e7ad18
already have revision, skipping fetch
# git checkout -q -f -B kisskb f9e2bb42cf0db3a624d295122db3475aa3e7ad18
# git clean -qxdf
# < git log -1
# commit f9e2bb42cf0db3a624d295122db3475aa3e7ad18
# Merge: 3fef15f872ee 1dc481c0b0cf
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Mar 28 13:22:54 2021 -0700
# 
#     Merge tag 'perf-tools-fixes-for-v5.12-2020-03-28' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux
#     
#     Pull perf tooling fixes from Arnaldo Carvalho de Melo:
#     
#      - Avoid write of uninitialized memory when generating PERF_RECORD_MMAP*
#        records.
#     
#      - Fix 'perf top' BPF support related crash with perf_event_paranoid=3 +
#        kptr_restrict.
#     
#      - Validate raw event with sysfs exported format bits.
#     
#      - Fix waipid on SIGCHLD delivery bugs in 'perf daemon'.
#     
#      - Change to use bash for daemon test on Debian, where the default is
#        dash and thus fails for use of bashisms in this test.
#     
#      - Fix memory leak in vDSO found using ASAN.
#     
#      - Remove now useless (due to the fact that BPF now supports static
#        vars) failing sub test "BPF relocation checker".
#     
#      - Fix auxtrace queue conflict.
#     
#      - Sync linux/kvm.h with the kernel sources.
#     
#     * tag 'perf-tools-fixes-for-v5.12-2020-03-28' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
#       perf test: Change to use bash for daemon test
#       perf record: Fix memory leak in vDSO found using ASAN
#       perf test: Remove now useless failing sub test "BPF relocation checker"
#       perf daemon: Return from kill functions
#       perf daemon: Force waipid for all session on SIGCHLD delivery
#       perf top: Fix BPF support related crash with perf_event_paranoid=3 + kptr_restrict
#       perf pmu: Validate raw event with sysfs exported format bits
#       perf synthetic events: Avoid write of uninitialized memory when generating PERF_RECORD_MMAP* records
#       tools headers UAPI: Sync linux/kvm.h with the kernel sources
#       perf synthetic-events: Fix uninitialized 'kernel_thread' variable
#       perf auxtrace: Fix auxtrace queue conflict
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-ld --version
# < git log --format=%s --max-count=1 f9e2bb42cf0db3a624d295122db3475aa3e7ad18
# < make -s -j 8 ARCH=s390 O=/kisskb/build/linus_s390-allnoconfig_s390x-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-  allnoconfig
# < make -s -j 8 ARCH=s390 O=/kisskb/build/linus_s390-allnoconfig_s390x-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-  help
# make -s -j 8 ARCH=s390 O=/kisskb/build/linus_s390-allnoconfig_s390x-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-  olddefconfig
# make -s -j 8 ARCH=s390 O=/kisskb/build/linus_s390-allnoconfig_s390x-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/s390-linux/bin/s390-linux-  
Completed OK
# rm -rf /kisskb/build/linus_s390-allnoconfig_s390x-gcc4.9
# Build took: 0:00:25.556620