# git rev-parse -q --verify b015dcd62b86d298829990f8261d5d154b8d7af5^{commit}
b015dcd62b86d298829990f8261d5d154b8d7af5
already have revision, skipping fetch
# git checkout -q -f -B kisskb b015dcd62b86d298829990f8261d5d154b8d7af5
# git clean -qxdf
# < git log -1
# commit b015dcd62b86d298829990f8261d5d154b8d7af5
# Merge: 99b056443e6f 798082be69fe
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Thu May 19 06:10:09 2022 -1000
# 
#     Merge tag 'for-5.18/parisc-4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
#     
#     Pull parisc architecture fixes from Helge Deller:
#      "We had two big outstanding issues after v5.18-rc6:
#     
#        a) 32-bit kernels on 64-bit machines (e.g. on a C3700 which is able
#           to run 32- and 64-bit kernels) failed early in userspace.
#     
#        b) 64-bit kernels on PA8800/PA8900 CPUs (e.g. in a C8000) showed
#           random userspace segfaults. We assumed that those problems were
#           caused by the tmpalias flushes.
#     
#       Dave did a lot of testing and reorganization of the current flush code
#       and fixed the 32-bit cache flushing. For PA8800/PA8900 CPUs he
#       switched the code to flush using the virtual address of user and
#       kernel pages instead of using tmpalias flushes. The tmpalias flushes
#       don't seem to work reliable on such CPUs.
#     
#       We tested the patches on a wide range machines (715/64, B160L, C3000,
#       C3700, C8000, rp3440) and they have been in for-next without any
#       conflicts.
#     
#       Summary:
#     
#        - Rewrite the cache flush code for PA8800/PA8900 CPUs to flush using
#          the virtual address of user and kernel pages instead of using
#          tmpalias flushes. Testing showed, that tmpalias flushes don't work
#          reliably on PA8800/PA8900 CPUs
#     
#        - Fix flush code to allow 32-bit kernels to run on 64-bit capable
#          machines, e.g. a 32-bit kernel on C3700 machines"
#     
#     * tag 'for-5.18/parisc-4' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
#       parisc: Fix patch code locking and flushing
#       parisc: Rewrite cache flush code for PA8800/PA8900
#       parisc: Disable debug code regarding cache flushes in handle_nadtlb_fault()
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/aarch64-linux/bin/aarch64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/aarch64-linux/bin/aarch64-linux-ld --version
# < git log --format=%s --max-count=1 b015dcd62b86d298829990f8261d5d154b8d7af5
# < make -s -j 24 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  allmodconfig
# < make -s -j 24 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  help
# make -s -j 24 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  olddefconfig
# make -s -j 24 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  
Completed OK
# rm -rf /kisskb/build/linus_arm64-allmodconfig_arm64-gcc11
# Build took: 0:46:10.016191