# git rev-parse -q --verify 705d84a366cfccda1e7aec1113a5399cd2ffee7d^{commit}
705d84a366cfccda1e7aec1113a5399cd2ffee7d
already have revision, skipping fetch
# git checkout -q -f -B kisskb 705d84a366cfccda1e7aec1113a5399cd2ffee7d
# git clean -qxdf
# < git log -1
# commit 705d84a366cfccda1e7aec1113a5399cd2ffee7d
# Merge: 2572da44a511 2e7be9db125a
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Tue Feb 15 09:14:05 2022 -0800
# 
#     Merge tag 'for-5.17-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
#     
#     Pull btrfs fixes from David Sterba:
#     
#      - yield CPU more often when defragmenting a large file
#     
#      - skip defragmenting extents already under writeback
#     
#      - improve error message when send fails to write file data
#     
#      - get rid of warning when mounted with 'flushoncommit'
#     
#     * tag 'for-5.17-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
#       btrfs: send: in case of IO error log it
#       btrfs: get rid of warning on transaction commit when using flushoncommit
#       btrfs: defrag: don't try to defrag extents which are under writeback
#       btrfs: don't hold CPU for too long when defragging a file
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/s390-linux/bin/s390-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/s390-linux/bin/s390-linux-ld --version
# < git log --format=%s --max-count=1 705d84a366cfccda1e7aec1113a5399cd2ffee7d
# < make -s -j 80 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/s390-linux/bin/s390-linux-  defconfig
# < make -s -j 80 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/s390-linux/bin/s390-linux-  help
# make -s -j 80 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/s390-linux/bin/s390-linux-  olddefconfig
# make -s -j 80 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/s390-linux/bin/s390-linux-  
BTF: .tmp_vmlinux.btf: pahole version v1.12 is too old, need at least v1.16
Failed to generate BTF for vmlinux
Try to disable CONFIG_DEBUG_INFO_BTF
make[1]: *** [/kisskb/src/Makefile:1155: vmlinux] Error 1
make: *** [Makefile:219: __sub-make] Error 2
Command 'make -s -j 80 ARCH=s390 O=/kisskb/build/linus_s390-defconfig_s390x-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/s390-linux/bin/s390-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus_s390-defconfig_s390x-gcc11
# Build took: 0:05:12.970204