# git rev-parse -q --verify d6c338a741295c04ed84679153448b2fffd2c9cf^{commit}
d6c338a741295c04ed84679153448b2fffd2c9cf
already have revision, skipping fetch
# git checkout -q -f -B kisskb d6c338a741295c04ed84679153448b2fffd2c9cf
# git clean -qxdf
# < git log -1
# commit d6c338a741295c04ed84679153448b2fffd2c9cf
# Merge: 35776f10513c adf9ae0d159d
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Thu Sep 9 13:45:26 2021 -0700
# 
#     Merge tag 'for-linus-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
#     
#     Pull UML updates from Richard Weinberger:
#     
#      - Support for VMAP_STACK
#     
#      - Support for splice_write in hostfs
#     
#      - Fixes for virt-pci
#     
#      - Fixes for virtio_uml
#     
#      - Various fixes
#     
#     * tag 'for-linus-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
#       um: fix stub location calculation
#       um: virt-pci: fix uapi documentation
#       um: enable VMAP_STACK
#       um: virt-pci: don't do DMA from stack
#       hostfs: support splice_write
#       um: virtio_uml: fix memory leak on init failures
#       um: virtio_uml: include linux/virtio-uml.h
#       lib/logic_iomem: fix sparse warnings
#       um: make PCI emulation driver init/exit static
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-ld --version
# < git log --format=%s --max-count=1 d6c338a741295c04ed84679153448b2fffd2c9cf
# < make -s -j 10 ARCH=s390 O=/kisskb/build/linus_s390-allmodconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-  allmodconfig
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# Added to kconfig CONFIG_SAMPLES=n
# < make -s -j 10 ARCH=s390 O=/kisskb/build/linus_s390-allmodconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-  help
# make -s -j 10 ARCH=s390 O=/kisskb/build/linus_s390-allmodconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-  olddefconfig
# make -s -j 10 ARCH=s390 O=/kisskb/build/linus_s390-allmodconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-  
/kisskb/src/arch/s390/kernel/syscall.c: In function '__do_syscall':
/kisskb/src/arch/s390/kernel/syscall.c:168:1: error: '__do_syscall' uses dynamic stack allocation [-Werror]
 }
 ^
cc1: all warnings being treated as errors
make[3]: *** [/kisskb/src/scripts/Makefile.build:277: arch/s390/kernel/syscall.o] Error 1
make[2]: *** [/kisskb/src/scripts/Makefile.build:540: arch/s390/kernel] Error 2
make[1]: *** [/kisskb/src/Makefile:1874: arch/s390] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:219: __sub-make] Error 2
Command 'make -s -j 10 ARCH=s390 O=/kisskb/build/linus_s390-allmodconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/s390-linux/bin/s390-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus_s390-allmodconfig_s390x-gcc8
# Build took: 0:03:21.699731