# git rev-parse -q --verify 1e57930e9f4083ad5854ab6eadffe790a8167fb4^{commit}
1e57930e9f4083ad5854ab6eadffe790a8167fb4
already have revision, skipping fetch
# git checkout -q -f -B kisskb 1e57930e9f4083ad5854ab6eadffe790a8167fb4
# git clean -qxdf
# < git log -1
# commit 1e57930e9f4083ad5854ab6eadffe790a8167fb4
# Merge: b2f02e9cdaad ce13389053a3
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Mon May 23 11:46:51 2022 -0700
# 
#     Merge tag 'rcu.2022.05.19a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
#     
#     Pull RCU update from Paul McKenney:
#     
#      - Documentation updates
#     
#      - Miscellaneous fixes
#     
#      - Callback-offloading updates, mainly simplifications
#     
#      - RCU-tasks updates, including some -rt fixups, handling of systems
#        with sparse CPU numbering, and a fix for a boot-time race-condition
#        failure
#     
#      - Put SRCU on a memory diet in order to reduce the size of the
#        srcu_struct structure
#     
#      - Torture-test updates fixing some bugs in tests and closing some
#        testing holes
#     
#      - Torture-test updates for the RCU tasks flavors, most notably ensuring
#        that building rcutorture and friends does not change the
#        RCU-tasks-related Kconfig options
#     
#      - Torture-test scripting updates
#     
#      - Expedited grace-period updates, most notably providing
#        milliseconds-scale (not all that) soft real-time response from
#        synchronize_rcu_expedited().
#     
#        This is also the first time in almost 30 years of RCU that someone
#        other than me has pushed for a reduction in the RCU CPU stall-warning
#        timeout, in this case by more than three orders of magnitude from 21
#        seconds to 20 milliseconds. This tighter timeout applies only to
#        expedited grace periods
#     
#     * tag 'rcu.2022.05.19a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (80 commits)
#       rcu: Move expedited grace period (GP) work to RT kthread_worker
#       rcu: Introduce CONFIG_RCU_EXP_CPU_STALL_TIMEOUT
#       srcu: Drop needless initialization of sdp in srcu_gp_start()
#       srcu: Prevent expedited GPs and blocking readers from consuming CPU
#       srcu: Add contention check to call_srcu() srcu_data ->lock acquisition
#       srcu: Automatically determine size-transition strategy at boot
#       rcutorture: Make torture.sh allow for --kasan
#       rcutorture: Make torture.sh refscale and rcuscale specify Tasks Trace RCU
#       rcutorture: Make kvm.sh allow more memory for --kasan runs
#       torture: Save "make allmodconfig" .config file
#       scftorture: Remove extraneous "scf" from per_version_boot_params
#       rcutorture: Adjust scenarios' Kconfig options for CONFIG_PREEMPT_DYNAMIC
#       torture: Enable CSD-lock stall reports for scftorture
#       torture: Skip vmlinux check for kvm-again.sh runs
#       scftorture: Adjust for TASKS_RCU Kconfig option being selected
#       rcuscale: Allow rcuscale without RCU Tasks Rude/Trace
#       rcuscale: Allow rcuscale without RCU Tasks
#       refscale: Allow refscale without RCU Tasks Rude/Trace
#       refscale: Allow refscale without RCU Tasks
#       rcutorture: Allow specifying per-scenario stat_interval
#       ...
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 1e57930e9f4083ad5854ab6eadffe790a8167fb4
# < make -s -j 32 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  randconfig
# Added to kconfig CONFIG_STANDALONE=y
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=n
# Added to kconfig CONFIG_GCC_PLUGINS=n
# Added to kconfig CONFIG_GCC_PLUGIN_CYC_COMPLEXITY=n
# Added to kconfig CONFIG_GCC_PLUGIN_SANCOV=n
# Added to kconfig CONFIG_GCC_PLUGIN_LATENT_ENTROPY=n
# Added to kconfig CONFIG_BPF_PRELOAD=n
# Added to kconfig 
# < make -s -j 32 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  help
# make -s -j 32 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  olddefconfig
.config:6491:warning: override: reassigning to symbol PREVENT_FIRMWARE_BUILD
.config:6493:warning: override: reassigning to symbol GCC_PLUGINS
# make -s -j 32 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  
vmlinux.o: warning: objtool: check_preemption_disabled.constprop.0()+0x5d: return with instrumentation enabled
Completed OK
# rm -rf /kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc11
# Build took: 0:05:08.656203