# git rev-parse -q --verify 4fe34d61a3a9d9ed954cbc90713506a7598d6b36^{commit}
4fe34d61a3a9d9ed954cbc90713506a7598d6b36
already have revision, skipping fetch
# git checkout -q -f -B kisskb 4fe34d61a3a9d9ed954cbc90713506a7598d6b36
# git clean -qxdf
# < git log -1
# commit 4fe34d61a3a9d9ed954cbc90713506a7598d6b36
# Merge: 81c4bc31c4cd 228d120051a2
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Oct 20 06:31:14 2019 -0400
# 
#     Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
#     
#     Pull x86 fixes from Thomas Gleixner:
#      "A small set of x86 fixes:
#     
#        - Prevent a NULL pointer dereference in the X2APIC code in case of a
#          CPU hotplug failure.
#     
#        - Prevent boot failures on HP superdome machines by invalidating the
#          level2 kernel pagetable entries outside of the kernel area as
#          invalid so BIOS reserved space won't be touched unintentionally.
#     
#          Also ensure that memory holes are rounded up to the next PMD
#          boundary correctly.
#     
#        - Enable X2APIC support on Hyper-V to prevent boot failures.
#     
#        - Set the paravirt name when running on Hyper-V for consistency
#     
#        - Move a function under the appropriate ifdef guard to prevent build
#          warnings"
#     
#     * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
#       x86/boot/acpi: Move get_cmdline_acpi_rsdp() under #ifdef guard
#       x86/hyperv: Set pv_info.name to "Hyper-V"
#       x86/apic/x2apic: Fix a NULL pointer deref when handling a dying cpu
#       x86/hyperv: Make vapic support x2apic mode
#       x86/boot/64: Round memory hole size up to next PMD page
#       x86/boot/64: Make level2_kernel_pgt pages invalid outside kernel area
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-ld --version
# < git log --format=%s --max-count=1 4fe34d61a3a9d9ed954cbc90713506a7598d6b36
# < make -s -j 24 ARCH=arm O=/kisskb/build/linus_hackkit_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-  hackkit_defconfig
# make -s -j 24 ARCH=arm O=/kisskb/build/linus_hackkit_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-  
/kisskb/src/fs/proc/inode.c: In function 'proc_reg_open':
/kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/proc/inode.c:338:21: note: 'pdeo' was declared here
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
WARNING: vmlinux.o(.text.unlikely+0x75c): Section mismatch in reference from the function free_memmap() to the function .meminit.text:memblock_free()
The function free_memmap() references
the function __meminit memblock_free().
This is often because free_memmap lacks a __meminit 
annotation or the annotation of memblock_free is wrong.

Completed OK
# rm -rf /kisskb/build/linus_hackkit_defconfig_arm
# Build took: 0:00:33.449983