# git rev-parse -q --verify 45dfb8a5659ad286c28fa59008271dbc4e5e3f2d^{commit}
45dfb8a5659ad286c28fa59008271dbc4e5e3f2d
already have revision, skipping fetch
# git checkout -q -f -B kisskb 45dfb8a5659ad286c28fa59008271dbc4e5e3f2d
# git clean -qxdf
# < git log -1
# commit 45dfb8a5659ad286c28fa59008271dbc4e5e3f2d
# Merge: f419f031de14 35d0b389f3b2
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Tue Jan 19 13:26:05 2021 -0800
# 
#     Merge tag 'task_work-2021-01-19' of git://git.kernel.dk/linux-block
#     
#     Pull task_work fix from Jens Axboe:
#      "The TIF_NOTIFY_SIGNAL change inadvertently removed the unconditional
#       task_work run we had in get_signal().
#     
#       This caused a regression for some setups, since we're relying on eg
#       ____fput() being run to close and release, for example, a pipe and
#       wake the other end.
#     
#       For 5.11, I prefer the simple solution of just reinstating the
#       unconditional run, even if it conceptually doesn't make much sense -
#       if you need that kind of guarantee, you should be using TWA_SIGNAL
#       instead of TWA_NOTIFY. But it's the trivial fix for 5.11, and would
#       ensure that other potential gotchas/assumptions for task_work don't
#       regress for 5.11.
#     
#       We're looking into further simplifying the task_work notifications for
#       5.12 which would resolve that too"
#     
#     * tag 'task_work-2021-01-19' of git://git.kernel.dk/linux-block:
#       task_work: unconditionally run task_work from get_signal()
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 45dfb8a5659ad286c28fa59008271dbc4e5e3f2d
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_pmac32_defconfig+SMP_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  pmac32_defconfig
# Added to kconfig CONFIG_SMP=y
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_pmac32_defconfig+SMP_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_pmac32_defconfig+SMP_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
.config:4136:warning: override: reassigning to symbol SMP
# make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_pmac32_defconfig+SMP_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  
/kisskb/src/block/genhd.c: In function 'diskstats_show':
/kisskb/src/block/genhd.c:1520:1: warning: the frame size of 1168 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 }
 ^
INFO: Uncompressed kernel (size 0xad7a9c) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0xb00000)
Completed OK
# rm -rf /kisskb/build/linus_pmac32_defconfig+SMP_powerpc-gcc4.9
# Build took: 0:01:44.294735