# git rev-parse -q --verify d01e7f10dae29eba0f9ada82b65d24e035d5b2f9^{commit}
d01e7f10dae29eba0f9ada82b65d24e035d5b2f9
already have revision, skipping fetch
# git checkout -q -f -B kisskb d01e7f10dae29eba0f9ada82b65d24e035d5b2f9
# git clean -qxdf
# < git log -1
# commit d01e7f10dae29eba0f9ada82b65d24e035d5b2f9
# Merge: faf145d6f3f3 f7cfd871ae0c
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Tue Dec 15 19:36:48 2020 -0800
# 
#     Merge branch 'exec-update-lock-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
#     
#     Pull exec-update-lock update from Eric Biederman:
#      "The key point of this is to transform exec_update_mutex into a
#       rw_semaphore so readers can be separated from writers.
#     
#       This makes it easier to understand what the holders of the lock are
#       doing, and makes it harder to contend or deadlock on the lock.
#     
#       The real deadlock fix wound up in perf_event_open"
#     
#     * 'exec-update-lock-for-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
#       exec: Transform exec_update_mutex into a rw_semaphore
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/mips-linux/bin/mips-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/mips-linux/bin/mips-linux-ld --version
# < git log --format=%s --max-count=1 d01e7f10dae29eba0f9ada82b65d24e035d5b2f9
# < make -s -j 48 ARCH=mips O=/kisskb/build/linus_mips-allnoconfig_mips-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/mips-linux/bin/mips-linux-  allnoconfig
# < make -s -j 48 ARCH=mips O=/kisskb/build/linus_mips-allnoconfig_mips-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/mips-linux/bin/mips-linux-  help
# make -s -j 48 ARCH=mips O=/kisskb/build/linus_mips-allnoconfig_mips-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/mips-linux/bin/mips-linux-  olddefconfig
# make -s -j 48 ARCH=mips O=/kisskb/build/linus_mips-allnoconfig_mips-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/mips-linux/bin/mips-linux-  
FIT description: Linux 5.10.0+
Created:         Wed Dec 16 20:34:32 2020
 Image 0 (kernel@0)
  Description:  Linux 5.10.0+
  Created:      Wed Dec 16 20:34:32 2020
  Type:         Kernel Image
  Compression:  gzip compressed
  Data Size:    684073 Bytes = 668.04 KiB = 0.65 MiB
  Architecture: MIPS
  OS:           Linux
  Load Address: 0x80100000
  Entry Point:  0x80231004
  Hash algo:    sha1
  Hash value:   be1603ea9f6e24013f993314ba08616c703817c7
 Default Configuration: 'conf@default'
 Configuration 0 (conf@default)
  Description:  Generic Linux kernel
  Kernel:       kernel@0
Completed OK
# rm -rf /kisskb/build/linus_mips-allnoconfig_mips-gcc4.9
# Build took: 0:00:17.343099