# git rev-parse -q --verify 5e69d465457215225178b3003d70e556c6c42ea0^{commit}
5e69d465457215225178b3003d70e556c6c42ea0
already have revision, skipping fetch
# git checkout -q -f -B kisskb 5e69d465457215225178b3003d70e556c6c42ea0
# git clean -qxdf
# < git log -1
# commit 5e69d465457215225178b3003d70e556c6c42ea0
# Author: Sourabh Jain <sourabhjain@linux.ibm.com>
# Date:   Sat Oct 21 23:47:33 2023 +0530
# 
#     Documentation/powerpc: update fadump implementation details
#     
#     The patch titled ("powerpc: make fadump resilient with memory add/remove
#     events") has made significant changes to the implementation of fadump,
#     particularly on elfcorehdr creation and fadump crash info header
#     structure. Therefore, updating the fadump implementation documentation
#     to reflect those changes.
#     
#     Following updates are done to firmware assisted dump documentation:
#     
#     1. The elfcorehdr is no longer stored after fadump HDR in the reserved
#        dump area. Instead, the second kernel dynamically allocates memory
#        for the elfcorehdr within the address range from 0 to the boot memory
#        size. Therefore, update figures 1 and 2 of Memory Reservation during
#        the first and second kernels to reflect this change.
#     
#     2. A version field has been added to the fadump header to maintain
#        backward compatibility without changing the fadump header magic
#        number in the future. Therefore, remove the corresponding TODO from
#        the document.
#     
#     To: linuxppc-dev@lists.ozlabs.org
#     Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://msgid.link/20231021181733.204311-4-sourabhjain@linux.ibm.com
# < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/s390-linux/bin/s390-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/s390-linux/bin/s390-linux-ld --version
# < git log --format=%s --max-count=1 5e69d465457215225178b3003d70e556c6c42ea0
# make -s -j 40 ARCH=s390 O=/kisskb/build/powerpc-next_defconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/s390-linux/bin/s390-linux-  defconfig
# Added to kconfig CONFIG_DEBUG_INFO_BTF=n
# Added to kconfig 
# < make -s -j 40 ARCH=s390 O=/kisskb/build/powerpc-next_defconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/s390-linux/bin/s390-linux-  help
# make -s -j 40 ARCH=s390 O=/kisskb/build/powerpc-next_defconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/s390-linux/bin/s390-linux-  olddefconfig
.config:3684:warning: override: reassigning to symbol DEBUG_INFO_BTF
# make -s -j 40 ARCH=s390 O=/kisskb/build/powerpc-next_defconfig_s390x-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/s390-linux/bin/s390-linux-  
Completed OK
# rm -rf /kisskb/build/powerpc-next_defconfig_s390x-gcc8
# Build took: 0:02:51.029711