# git rev-parse -q --verify 66d9282523b3228183b14d9f812872dd2620704d^{commit}
66d9282523b3228183b14d9f812872dd2620704d
already have revision, skipping fetch
# git checkout -q -f -B kisskb 66d9282523b3228183b14d9f812872dd2620704d
# git clean -qxdf
# < git log -1
# commit 66d9282523b3228183b14d9f812872dd2620704d
# Author: Mel Gorman <mgorman@techsingularity.net>
# Date:   Mon Jun 28 16:02:19 2021 +0100
# 
#     mm/page_alloc: Correct return value of populated elements if bulk array is populated
#     
#     Dave Jones reported the following
#     
#             This made it into 5.13 final, and completely breaks NFSD for me
#             (Serving tcp v3 mounts).  Existing mounts on clients hang, as do
#             new mounts from new clients.  Rebooting the server back to rc7
#             everything recovers.
#     
#     The commit b3b64ebd3822 ("mm/page_alloc: do bulk array bounds check after
#     checking populated elements") returns the wrong value if the array is
#     already populated which is interpreted as an allocation failure. Dave
#     reported this fixes his problem and it also passed a test running dbench
#     over NFS.
#     
#     Fixes: b3b64ebd3822 ("mm/page_alloc: do bulk array bounds check after checking populated elements")
#     Reported-and-tested-by: Dave Jones <davej@codemonkey.org.uk>
#     Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
#     Cc: <stable@vger.kernel.org> [5.13+]
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 66d9282523b3228183b14d9f812872dd2620704d
# < make -s -j 24 ARCH=powerpc O=/kisskb/build/linus_44x_fsp2_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  44x/fsp2_defconfig
# < make -s -j 24 ARCH=powerpc O=/kisskb/build/linus_44x_fsp2_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 24 ARCH=powerpc O=/kisskb/build/linus_44x_fsp2_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 24 ARCH=powerpc O=/kisskb/build/linus_44x_fsp2_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
INFO: Uncompressed kernel (size 0xa94584) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0xb00000)
Image Name:   Linux-5.13.0-g66d9282523b3
Created:      Tue Jun 29 05:43:55 2021
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    4649379 Bytes = 4540.41 KiB = 4.43 MiB
Load Address: 00000000
Entry Point:  00000000
Completed OK
# rm -rf /kisskb/build/linus_44x_fsp2_defconfig_powerpc-gcc5
# Build took: 0:01:33.822982