# git rev-parse -q --verify eff48ddeab782e35e58ccc8853f7386bbae9dec4^{commit}
eff48ddeab782e35e58ccc8853f7386bbae9dec4
already have revision, skipping fetch
# git checkout -q -f -B kisskb eff48ddeab782e35e58ccc8853f7386bbae9dec4
# git clean -qxdf
# < git log -1
# commit eff48ddeab782e35e58ccc8853f7386bbae9dec4
# Merge: 98477740630f a27026e95b57
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Tue Sep 22 09:08:33 2020 -0700
# 
#     Merge tag 'trace-v5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
#     
#     Pull tracing fixes from Steven Rostedt:
#     
#      - Check kprobe is enabled before unregistering from ftrace as it isn't
#        registered when disabled.
#     
#      - Remove kprobes enabled via command-line that is on init text when
#        freed.
#     
#      - Add missing RCU synchronization for ftrace trampoline symbols removed
#        from kallsyms.
#     
#      - Free trampoline on error path if ftrace_startup() fails.
#     
#      - Give more space for the longer PID numbers in trace output.
#     
#      - Fix a possible double free in the histogram code.
#     
#      - A couple of fixes that were discovered by sparse.
#     
#     * tag 'trace-v5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
#       bootconfig: init: make xbc_namebuf static
#       kprobes: tracing/kprobes: Fix to kill kprobes on initmem after boot
#       tracing: fix double free
#       ftrace: Let ftrace_enable_sysctl take a kernel pointer buffer
#       tracing: Make the space reserved for the pid wider
#       ftrace: Fix missing synchronize_rcu() removing trampoline from kallsyms
#       ftrace: Free the trampoline when ftrace_startup() fails
#       kprobes: Fix to check probe enabled before disarm_kprobe_ftrace()
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 eff48ddeab782e35e58ccc8853f7386bbae9dec4
# < make -s -j 24 ARCH=x86_64 O=/kisskb/build/linus_x86_64-allnoconfig_x86_64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux-  allnoconfig
# < make -s -j 24 ARCH=x86_64 O=/kisskb/build/linus_x86_64-allnoconfig_x86_64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux-  help
# make -s -j 24 ARCH=x86_64 O=/kisskb/build/linus_x86_64-allnoconfig_x86_64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux-  olddefconfig
# make -s -j 24 ARCH=x86_64 O=/kisskb/build/linus_x86_64-allnoconfig_x86_64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux-  
Completed OK
# rm -rf /kisskb/build/linus_x86_64-allnoconfig_x86_64-gcc4.9
# Build took: 0:00:25.138980