# git rev-parse -q --verify 1fe5501ba1abf2b7e78295df73675423bd6899a0^{commit}
1fe5501ba1abf2b7e78295df73675423bd6899a0
already have revision, skipping fetch
# git checkout -q -f -B kisskb 1fe5501ba1abf2b7e78295df73675423bd6899a0
# git clean -qxdf
# < git log -1
# commit 1fe5501ba1abf2b7e78295df73675423bd6899a0
# Merge: db2e718a4798 0e1e71d34901
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Tue Apr 20 14:38:35 2021 -0700
# 
#     Merge tag 'trace-v5.12-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
#     
#     Pull tracing fix from Steven Rostedt:
#      "Fix tp_printk command line and trace events
#     
#       Masami added a wrapper to be able to unhash trace event pointers as
#       they are only read by root anyway, and they can also be extracted by
#       the raw trace data buffers. But this wrapper utilized the iterator to
#       have a temporary buffer to manipulate the text with.
#     
#       tp_printk is a kernel command line option that will send the trace
#       output of a trace event to the console on boot up (useful when the
#       system crashes before finishing the boot). But the code used the same
#       wrapper that Masami added, and its iterator did not have a buffer, and
#       this caused the system to crash.
#     
#       Have the wrapper just print the trace event normally if the iterator
#       has no temporary buffer"
#     
#     * tag 'trace-v5.12-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
#       tracing: Fix checking event hash pointer logic when tp_printk is enabled
# < /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 1fe5501ba1abf2b7e78295df73675423bd6899a0
# < make -s -j 8 ARCH=arm64 O=/kisskb/build/linus_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  defconfig
# < make -s -j 8 ARCH=arm64 O=/kisskb/build/linus_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  help
# make -s -j 8 ARCH=arm64 O=/kisskb/build/linus_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  olddefconfig
# make -s -j 8 ARCH=arm64 O=/kisskb/build/linus_arm64-defconfig_arm64-gcc5.4 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  
arch/arm64/Makefile:25: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum
arch/arm64/Makefile:33: LSE atomics not supported by binutils
Completed OK
# rm -rf /kisskb/build/linus_arm64-defconfig_arm64-gcc5.4
# Build took: 0:10:40.817505