# git rev-parse -q --verify 9819f682e48c6a7055c5d7a6746411dd3969b0e5^{commit}
9819f682e48c6a7055c5d7a6746411dd3969b0e5
already have revision, skipping fetch
# git checkout -q -f -B kisskb 9819f682e48c6a7055c5d7a6746411dd3969b0e5
# git clean -qxdf
# < git log -1
# commit 9819f682e48c6a7055c5d7a6746411dd3969b0e5
# Merge: 732a27a0891c 0258bdfaff5b
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun May 9 13:14:34 2021 -0700
# 
#     Merge tag 'sched-urgent-2021-05-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
#     
#     Pull scheduler fixes from Thomas Gleixner:
#      "A set of scheduler updates:
#     
#        - Prevent PSI state corruption when schedule() races with cgroup
#          move.
#     
#          A recent commit combined two PSI callbacks to reduce the number of
#          cgroup tree updates, but missed that schedule() can drop rq::lock
#          for load balancing, which opens the race window for
#          cgroup_move_task() which then observes half updated state.
#     
#          The fix is to solely use task::ps_flags instead of looking at the
#          potentially mismatching scheduler state
#     
#        - Prevent an out-of-bounds access in uclamp caused bu a rounding
#          division which can lead to an off-by-one error exceeding the
#          buckets array size.
#     
#        - Prevent unfairness caused by missing load decay when a task is
#          attached to a cfs runqueue.
#     
#          The old load of the task was attached to the runqueue and never
#          removed. Fix it by enforcing the load update through the hierarchy
#          for unthrottled run queue instances.
#     
#        - A documentation fix fot the 'sched_verbose' command line option"
#     
#     * tag 'sched-urgent-2021-05-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
#       sched/fair: Fix unfairness caused by missing load decay
#       sched: Fix out-of-bound access in uclamp
#       psi: Fix psi state corruption when schedule() races with cgroup move
#       sched,doc: sched_debug_verbose cmdline should be sched_verbose
# < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-gcc --version
# < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-ld --version
# < git log --format=%s --max-count=1 9819f682e48c6a7055c5d7a6746411dd3969b0e5
# < make -s -j 48 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  randconfig
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# < make -s -j 48 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  help
# make -s -j 48 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  olddefconfig
.config:6384:warning: override: reassigning to symbol PREVENT_FIRMWARE_BUILD
# make -s -j 48 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  
/kisskb/src/arch/arm64/Makefile:25: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum
/kisskb/src/arch/arm64/Makefile:33: LSE atomics not supported by binutils
/kisskb/src/arch/arm64/Makefile:25: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum
/kisskb/src/arch/arm64/Makefile:33: LSE atomics not supported by binutils
Completed OK
# rm -rf /kisskb/build/linus-rand_arm64-randconfig_arm64-gcc5.4
# Build took: 0:08:47.385418