# git gc
# git rev-parse -q --verify 787af64d05cd528aac9ad16752d11bb1c6061bb9^{commit}
787af64d05cd528aac9ad16752d11bb1c6061bb9
already have revision, skipping fetch
# git checkout -q -f -B kisskb 787af64d05cd528aac9ad16752d11bb1c6061bb9
# git clean -qxdf
# < git log -1
# commit 787af64d05cd528aac9ad16752d11bb1c6061bb9
# Author: Zi Yan <ziy@nvidia.com>
# Date:   Wed Mar 30 15:45:43 2022 -0700
# 
#     mm: page_alloc: validate buddy before check its migratetype.
#     
#     Whenever a buddy page is found, page_is_buddy() should be called to
#     check its validity.  Add the missing check during pageblock merge check.
#     
#     Fixes: 1dd214b8f21c ("mm: page_alloc: avoid merging non-fallbackable pageblocks with others")
#     Link: https://lore.kernel.org/all/20220330154208.71aca532@gandalf.local.home/
#     Reported-and-tested-by: Steven Rostedt <rostedt@goodmis.org>
#     Signed-off-by: Zi Yan <ziy@nvidia.com>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /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 787af64d05cd528aac9ad16752d11bb1c6061bb9
# < make -s -j 10 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 10 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 10 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:3651:warning: override: reassigning to symbol STANDALONE
.config:3652:warning: override: reassigning to symbol PREVENT_FIRMWARE_BUILD
.config:3654:warning: override: reassigning to symbol GCC_PLUGINS
# make -s -j 10 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-  
/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-ld: warning: arch/x86/entry/vdso/vclock_gettime-x32.o: corrupt GNU_PROPERTY_TYPE (5) size: 0x10
/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-ld: warning: arch/x86/entry/vdso/vgetcpu-x32.o: corrupt GNU_PROPERTY_TYPE (5) size: 0x10
/kisskb/src/arch/x86/kernel/traps.c: In function '__exc_control_protection':
/kisskb/src/arch/x86/kernel/traps.c:249:3: error: implicit declaration of function '__warn'; did you mean 'pr_warn'? [-Werror=implicit-function-declaration]
   __warn(__FILE__, __LINE__, (void *)regs->ip, TAINT_WARN, regs, NULL);
   ^~~~~~
   pr_warn
cc1: some warnings being treated as errors
make[3]: *** [/kisskb/src/scripts/Makefile.build:289: arch/x86/kernel/traps.o] Error 1
make[2]: *** [/kisskb/src/scripts/Makefile.build:551: arch/x86/kernel] Error 2
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/kisskb/src/Makefile:1830: arch/x86] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:219: __sub-make] Error 2
Command 'make -s -j 10 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-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8
# Build took: 0:04:44.860840