# git rev-parse -q --verify c14cab2688d09b851349acbb83e5fce8e0d4ca42^{commit}
c14cab2688d09b851349acbb83e5fce8e0d4ca42
already have revision, skipping fetch
# git checkout -q -f -B kisskb c14cab2688d09b851349acbb83e5fce8e0d4ca42
# git clean -qxdf
# < git log -1
# commit c14cab2688d09b851349acbb83e5fce8e0d4ca42
# Merge: 8b00083219af fb9cbbc895eb
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun May 10 11:59:53 2020 -0700
# 
#     Merge tag 'x86-urgent-2020-05-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
#     
#     Pull x86 fixes from Thomas Gleixner:
#      "A set of fixes for x86:
#     
#        - Ensure that direct mapping alias is always flushed when changing
#          page attributes. The optimization for small ranges failed to do so
#          when the virtual address was in the vmalloc or module space.
#     
#        - Unbreak the trace event registration for syscalls without arguments
#          caused by the refactoring of the SYSCALL_DEFINE0() macro.
#     
#        - Move the printk in the TSC deadline timer code to a place where it
#          is guaranteed to only be called once during boot and cannot be
#          rearmed by clearing warn_once after boot. If it's invoked post boot
#          then lockdep rightfully complains about a potential deadlock as the
#          calling context is different.
#     
#        - A series of fixes for objtool and the ORC unwinder addressing
#          variety of small issues:
#     
#            - Stack offset tracking for indirect CFAs in objtool ignored
#              subsequent pushs and pops
#     
#            - Repair the unwind hints in the register clearing entry ASM code
#     
#            - Make the unwinding in the low level exit to usermode code stop
#              after switching to the trampoline stack. The unwind hint is no
#              longer valid and the ORC unwinder emits a warning as it can't
#              find the registers anymore.
#     
#            - Fix unwind hints in switch_to_asm() and rewind_stack_do_exit()
#              which caused objtool to generate bogus ORC data.
#     
#            - Prevent unwinder warnings when dumping the stack of a
#              non-current task as there is no way to be sure about the
#              validity because the dumped stack can be a moving target.
#     
#            - Make the ORC unwinder behave the same way as the frame pointer
#              unwinder when dumping an inactive tasks stack and do not skip
#              the first frame.
#     
#            - Prevent ORC unwinding before ORC data has been initialized
#     
#            - Immediately terminate unwinding when a unknown ORC entry type
#              is found.
#     
#            - Prevent premature stop of the unwinder caused by IRET frames.
#     
#            - Fix another infinite loop in objtool caused by a negative
#              offset which was not catched.
#     
#            - Address a few build warnings in the ORC unwinder and add
#              missing static/ro_after_init annotations"
#     
#     * tag 'x86-urgent-2020-05-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
#       x86/unwind/orc: Move ORC sorting variables under !CONFIG_MODULES
#       x86/apic: Move TSC deadline timer debug printk
#       ftrace/x86: Fix trace event registration for syscalls without arguments
#       x86/mm/cpa: Flush direct map alias during cpa
#       objtool: Fix infinite loop in for_offset_range()
#       x86/unwind/orc: Fix premature unwind stoppage due to IRET frames
#       x86/unwind/orc: Fix error path for bad ORC entry type
#       x86/unwind/orc: Prevent unwinding before ORC initialization
#       x86/unwind/orc: Don't skip the first frame for inactive tasks
#       x86/unwind: Prevent false warnings for non-current tasks
#       x86/unwind/orc: Convert global variables to static
#       x86/entry/64: Fix unwind hints in rewind_stack_do_exit()
#       x86/entry/64: Fix unwind hints in __switch_to_asm()
#       x86/entry/64: Fix unwind hints in kernel exit path
#       x86/entry/64: Fix unwind hints in register clearing code
#       objtool: Fix stack offset tracking for indirect CFAs
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/i386-linux/bin/i386-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/i386-linux/bin/i386-linux-ld --version
# < git log --format=%s --max-count=1 c14cab2688d09b851349acbb83e5fce8e0d4ca42
# < make -s -j 48 ARCH=i386 O=/kisskb/build/linus_i386-allnoconfig_i386-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/i386-linux/bin/i386-linux-  allnoconfig
# < make -s -j 48 ARCH=i386 O=/kisskb/build/linus_i386-allnoconfig_i386-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/i386-linux/bin/i386-linux-  help
# make -s -j 48 ARCH=i386 O=/kisskb/build/linus_i386-allnoconfig_i386-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/i386-linux/bin/i386-linux-  olddefconfig
# make -s -j 48 ARCH=i386 O=/kisskb/build/linus_i386-allnoconfig_i386-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/i386-linux/bin/i386-linux-  
Completed OK
# rm -rf /kisskb/build/linus_i386-allnoconfig_i386-gcc4.9
# Build took: 0:00:16.728253