# git rev-parse -q --verify d06c942efea40e1701ade200477a7449008d9f24^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
warning: The last gc run reported the following. Please correct the root cause
and remove .git/gc.log.
Automatic cleanup will not be performed until the file is removed.

warning: There are too many unreachable loose objects; run 'git prune' to remove them.

# git rev-parse -q --verify d06c942efea40e1701ade200477a7449008d9f24^{commit}
d06c942efea40e1701ade200477a7449008d9f24
# git checkout -q -f -B kisskb d06c942efea40e1701ade200477a7449008d9f24
# git clean -qxdf
# < git log -1
# commit d06c942efea40e1701ade200477a7449008d9f24
# Merge: 9557e60b8c35 bb93ce4b150d
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Nov 28 11:58:52 2021 -0800
# 
#     Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
#     
#     Pull vhost,virtio,vdpa bugfixes from Michael Tsirkin:
#      "Misc fixes all over the place.
#     
#       Revert of virtio used length validation series: the approach taken
#       does not seem to work, breaking too many guests in the process. We'll
#       need to do length validation using some other approach"
#     
#     [ This merge also ends up reverting commit f7a36b03a732 ("vsock/virtio:
#       suppress used length validation"), which came in through the
#       networking tree in the meantime, and was part of that whole used
#       length validation series   - Linus ]
#     
#     * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
#       vdpa_sim: avoid putting an uninitialized iova_domain
#       vhost-vdpa: clean irqs before reseting vdpa device
#       virtio-blk: modify the value type of num in virtio_queue_rq()
#       vhost/vsock: cleanup removing `len` variable
#       vhost/vsock: fix incorrect used length reported to the guest
#       Revert "virtio_ring: validate used buffer length"
#       Revert "virtio-net: don't let virtio core to validate used length"
#       Revert "virtio-blk: don't let virtio core to validate used length"
#       Revert "virtio-scsi: don't let virtio core to validate used buffer length"
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 d06c942efea40e1701ade200477a7449008d9f24
# < make -s -j 32 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  randconfig
# Added to kconfig CONFIG_STANDALONE=y
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=n
# Added to kconfig CONFIG_GCC_PLUGINS=n
# Added to kconfig CONFIG_GCC_PLUGIN_CYC_COMPLEXITY=n
# Added to kconfig CONFIG_GCC_PLUGIN_SANCOV=n
# Added to kconfig CONFIG_GCC_PLUGIN_LATENT_ENTROPY=n
# Added to kconfig CONFIG_BPF_PRELOAD=n
# Added to kconfig 
# < make -s -j 32 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  help
# make -s -j 32 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  olddefconfig
.config:5229:warning: override: reassigning to symbol PREVENT_FIRMWARE_BUILD
.config:5234:warning: override: reassigning to symbol GCC_PLUGIN_LATENT_ENTROPY
# make -s -j 32 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  
vmlinux.o: warning: objtool: do_machine_check()+0xedd: call to fortify_panic() leaves .noinstr.text section
Completed OK
# rm -rf /kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8
# Build took: 0:01:44.188659