# git rev-parse -q --verify 4c205c84e249e0a91dcfabe461d77667ec9b2d05^{commit}
4c205c84e249e0a91dcfabe461d77667ec9b2d05
already have revision, skipping fetch
# git checkout -q -f -B kisskb 4c205c84e249e0a91dcfabe461d77667ec9b2d05
# git clean -qxdf
# < git log -1
# commit 4c205c84e249e0a91dcfabe461d77667ec9b2d05
# Merge: ea9448b254e2 4f0882491a14
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sat Apr 4 12:24:47 2020 -0700
# 
#     Merge tag 'keys-fixes-20200329' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
#     
#     Pull keyrings fixes from David Howells:
#      "Here's a couple of patches that fix a circular dependency between
#       holding key->sem and mm->mmap_sem when reading data from a key.
#     
#       One potential issue is that a filesystem looking to use a key inside,
#       say, ->readpages() could deadlock if the key being read is the key
#       that's required and the buffer the key is being read into is on a page
#       that needs to be fetched.
#     
#       The case actually detected is a bit more involved - with a filesystem
#       calling request_key() and locking the target keyring for write - which
#       could be being read"
#     
#     * tag 'keys-fixes-20200329' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
#       KEYS: Avoid false positive ENOMEM error on key read
#       KEYS: Don't write out to userspace while holding key semaphore
# < /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 4c205c84e249e0a91dcfabe461d77667ec9b2d05
# < 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
KCONFIG_SEED=0x797FAB74
# 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
# < 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:4664:warning: override: reassigning to symbol PREVENT_FIRMWARE_BUILD
# 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-  
arch/x86/tools/insn_decoder_test: success: Decoded and checked 6343169 instructions
arch/x86/tools/insn_sanity: Success: decoded and checked 1000000 random instructions with 0 errors (seed:0xabb14c4e)
Completed OK
# rm -rf /kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8
# Build took: 0:04:37.536498