# git rev-parse -q --verify 0b43a299794ee9dba2dc1b0f0290b1acab9d445d^{commit}
0b43a299794ee9dba2dc1b0f0290b1acab9d445d
already have revision, skipping fetch
# git checkout -q -f -B kisskb 0b43a299794ee9dba2dc1b0f0290b1acab9d445d
# git clean -qxdf
# < git log -1
# commit 0b43a299794ee9dba2dc1b0f0290b1acab9d445d
# Merge: 52f842ccd615 8b878ee247ef
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Fri Dec 7 10:40:37 2018 -0800
# 
#     Merge tag 'for-linus-20181207' of git://git.kernel.dk/linux-block
#     
#     Pull block fixes from Jens Axboe:
#      "Let's try this again...
#     
#       We're finally happy with the DM livelock issue, and it's also passed
#       overnight testing and the corruption regression test. The end result
#       is much nicer now too, which is great.
#     
#       Outside of that fix, there's a pull request for NVMe with two small
#       fixes, and a regression fix for BFQ from this merge window. The BFQ
#       fix looks bigger than it is, it's 90% comment updates"
#     
#     * tag 'for-linus-20181207' of git://git.kernel.dk/linux-block:
#       blk-mq: punt failed direct issue to dispatch list
#       nvmet-rdma: fix response use after free
#       nvme: validate controller state before rescheduling keep alive
#       block, bfq: fix decrement of num_active_groups
# < /opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-gcc --version
# < git log --format=%s --max-count=1 0b43a299794ee9dba2dc1b0f0290b1acab9d445d
# < make -s -j 48 ARCH=sparc64 O=/kisskb/build/linus_sparc64-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  defconfig
# make -s -j 48 ARCH=sparc64 O=/kisskb/build/linus_sparc64-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  
<stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp]
WARNING: EXPORT symbol "_mcount" [vmlinux] version generation failed, symbol will not be versioned.
WARNING: EXPORT symbol "_mcount" [vmlinux] version generation failed, symbol will not be versioned.
  kernel: arch/sparc/boot/image is ready
  kernel: arch/sparc/boot/zImage is ready
Completed OK
# rm -rf /kisskb/build/linus_sparc64-defconfig_sparc64
# Build took: 0:01:03.421285