# git rev-parse -q --verify 6b529fb0a3eabf9c4cc3e94c11477250379ce6d8^{commit}
6b529fb0a3eabf9c4cc3e94c11477250379ce6d8
already have revision, skipping fetch
# git checkout -q -f -B kisskb 6b529fb0a3eabf9c4cc3e94c11477250379ce6d8
# git clean -qxdf
# < git log -1
# commit 6b529fb0a3eabf9c4cc3e94c11477250379ce6d8
# Merge: 72d657dd2115 1b3922a8bc74
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Mon Jan 14 05:55:51 2019 +1200
# 
#     Merge tag 'for-5.0-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
#     
#     Pull btrfs fixes from David Sterba:
#     
#      - two regression fixes in clone/dedupe ioctls, the generic check
#        callback needs to lock extents properly and wait for io to avoid
#        problems with writeback and relocation
#     
#      - fix deadlock when using free space tree due to block group creation
#     
#      - a recently added check refuses a valid fileystem with seeding device,
#        make that work again with a quickfix, proper solution needs more
#        intrusive changes
#     
#     * tag 'for-5.0-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
#       btrfs: Use real device structure to verify dev extent
#       Btrfs: fix deadlock when using free space tree due to block group creation
#       Btrfs: fix race between reflink/dedupe and relocation
#       Btrfs: fix race between cloning range ending at eof and writeback
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-ld --version
# < git log --format=%s --max-count=1 6b529fb0a3eabf9c4cc3e94c11477250379ce6d8
# < make -s -j 48 ARCH=i386 O=/kisskb/build/linus_i386_defconfig_i386 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-  i386_defconfig
# make -s -j 48 ARCH=i386 O=/kisskb/build/linus_i386_defconfig_i386 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-  
You are building kernel with non-retpoline compiler.
Please update your compiler.
make[1]: *** [arch/x86/Makefile:300: checkbin] Error 1
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:152: sub-make] Error 2
Command 'make -s -j 48 ARCH=i386 O=/kisskb/build/linus_i386_defconfig_i386 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/i386-linux/bin/i386-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus_i386_defconfig_i386
# Build took: 0:00:02.835852