# git gc
# git rev-parse -q --verify bf152b0b41dc141c8d32eb6e974408f5804f4d00^{commit}
bf152b0b41dc141c8d32eb6e974408f5804f4d00
already have revision, skipping fetch
# git checkout -q -f -B kisskb bf152b0b41dc141c8d32eb6e974408f5804f4d00
# git clean -qxdf
# < git log -1
# commit bf152b0b41dc141c8d32eb6e974408f5804f4d00
# Merge: 8ff0f3bf5d65 0bde59c1723a
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Thu Mar 18 11:20:35 2021 -0700
# 
#     Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
#     
#     Pull virtio fixes from Michael Tsirkin:
#      "Some fixes and cleanups all over the place"
#     
#     * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
#       vhost-vdpa: set v->config_ctx to NULL if eventfd_ctx_fdget() fails
#       vhost-vdpa: fix use-after-free of v->config_ctx
#       vhost: Fix vhost_vq_reset()
#       vhost_vdpa: fix the missing irq_bypass_unregister_producer() invocation
#       vdpa_sim: Skip typecasting from void*
#       virtio: remove export for virtio_config_{enable, disable}
#       virtio-mmio: Use to_virtio_mmio_device() to simply code
#       vdpa: set the virtqueue num during register
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/alpha-linux/bin/alpha-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/alpha-linux/bin/alpha-linux-ld --version
# < git log --format=%s --max-count=1 bf152b0b41dc141c8d32eb6e974408f5804f4d00
# < make -s -j 24 ARCH=alpha O=/kisskb/build/linus_alpha-defconfig_alpha-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/alpha-linux/bin/alpha-linux-  defconfig
# < make -s -j 24 ARCH=alpha O=/kisskb/build/linus_alpha-defconfig_alpha-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/alpha-linux/bin/alpha-linux-  help
# make -s -j 24 ARCH=alpha O=/kisskb/build/linus_alpha-defconfig_alpha-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/alpha-linux/bin/alpha-linux-  olddefconfig
# make -s -j 24 ARCH=alpha O=/kisskb/build/linus_alpha-defconfig_alpha-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/alpha-linux/bin/alpha-linux-  
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
WARNING: modpost: "saved_config" [vmlinux] is COMMON symbol
  Kernel arch/alpha/boot/vmlinux.gz is ready
Completed OK
# rm -rf /kisskb/build/linus_alpha-defconfig_alpha-gcc4.9
# Build took: 0:05:42.494972