# git rev-parse -q --verify fcf88917dd435c6a4cb2830cb086ee58605a1d85^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
error: The last gc run reported the following. Please correct the root cause
and remove .git/gc.log.
Automatic cleanup will not be performed until the file is removed.

warning: There are too many unreachable loose objects; run 'git prune' to remove them.

# git rev-parse -q --verify fcf88917dd435c6a4cb2830cb086ee58605a1d85^{commit}
fcf88917dd435c6a4cb2830cb086ee58605a1d85
# git checkout -q -f -B kisskb fcf88917dd435c6a4cb2830cb086ee58605a1d85
# git clean -qxdf
# < git log -1
# commit fcf88917dd435c6a4cb2830cb086ee58605a1d85
# Author: Qian Cai <cai@lca.pw>
# Date:   Sat Apr 6 18:59:01 2019 -0400
# 
#     slab: fix a crash by reading /proc/slab_allocators
#     
#     The commit 510ded33e075 ("slab: implement slab_root_caches list")
#     changes the name of the list node within "struct kmem_cache" from "list"
#     to "root_caches_node", but leaks_show() still use the "list" which
#     causes a crash when reading /proc/slab_allocators.
#     
#     You need to have CONFIG_SLAB=y and CONFIG_MEMCG=y to see the problem,
#     because without MEMCG all slab caches are root caches, and the "list"
#     node happens to be the right one.
#     
#     Fixes: 510ded33e075 ("slab: implement slab_root_caches list")
#     Signed-off-by: Qian Cai <cai@lca.pw>
#     Reviewed-by: Tobin C. Harding <tobin@kernel.org>
#     Cc: Tejun Heo <tj@kernel.org>
#     Cc: Andrew Morton <akpm@linux-foundation.org>
#     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 fcf88917dd435c6a4cb2830cb086ee58605a1d85
# < make -s -j 8 ARCH=powerpc O=/kisskb/build/linus-rand_randconfig+ppc64le_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  randconfig
KCONFIG_SEED=0xF279D638
# Added to kconfig CONFIG_STANDALONE=y
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# Added to kconfig CONFIG_CPU_BIG_ENDIAN=n
# Added to kconfig CONFIG_CPU_LITTLE_ENDIAN=y
# Added to kconfig CONFIG_PPC64=y
# Added to kconfig CONFIG_PPC_BOOK3E_64=n
# Added to kconfig CONFIG_PPC_BOOK3S_64=y
# Added to kconfig CONFIG_PPC_DISABLE_WERROR=y
# Added to kconfig CONFIG_SECTION_MISMATCH_WARN_ONLY=y
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# Added to kconfig CONFIG_LD_HEAD_STUB_CATCH=y
# yes \n | make -s -j 8 ARCH=powerpc O=/kisskb/build/linus-rand_randconfig+ppc64le_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  oldconfig
yes: standard output: Broken pipe
# make -s -j 8 ARCH=powerpc O=/kisskb/build/linus-rand_randconfig+ppc64le_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
<stdin>:1478:2: warning: #warning syscall pidfd_send_signal not implemented [-Wcpp]
<stdin>:1481:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
<stdin>:1484:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
<stdin>:1487:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
/kisskb/src/block/blk-cgroup.c: In function 'blkg_prfill_rwstat':
/kisskb/src/block/blk-cgroup.c:607:1: warning: the frame size of 1120 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 }
 ^
/kisskb/src/block/blk-cgroup.c: In function 'blkg_prfill_rwstat_field':
/kisskb/src/block/blk-cgroup.c:616:1: warning: the frame size of 1120 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 }
 ^
/kisskb/src/block/blk-cgroup.c: In function 'blkcg_print_stat':
/kisskb/src/block/blk-cgroup.c:1015:1: warning: the frame size of 1120 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 }
 ^
/kisskb/src/block/bfq-cgroup.c: In function 'bfqg_prfill_sectors':
/kisskb/src/block/bfq-cgroup.c:974:1: warning: the frame size of 1120 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 }
 ^
/kisskb/src/block/bfq-cgroup.c: In function 'bfqg_stats_set_start_empty_time':
/kisskb/src/block/bfq-cgroup.c:121:1: warning: the frame size of 1120 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 }
 ^
/kisskb/src/block/bfq-cgroup.c: In function 'bfqg_stats_update_avg_queue_size':
/kisskb/src/block/bfq-cgroup.c:153:1: warning: the frame size of 1120 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 }
 ^
WARNING: vmlinux.o(.text+0x2ba4): Section mismatch in reference from the variable __boot_from_prom to the function .init.text:prom_init()
The function __boot_from_prom() references
the function __init prom_init().
This is often because __boot_from_prom lacks a __init 
annotation or the annotation of prom_init is wrong.

WARNING: vmlinux.o(.text+0x2e34): Section mismatch in reference from the variable start_here_multiplatform to the function .init.text:early_setup()
The function start_here_multiplatform() references
the function __init early_setup().
This is often because start_here_multiplatform lacks a __init 
annotation or the annotation of early_setup is wrong.

WARNING: vmlinux.o(.text+0x2e68): Section mismatch in reference from the variable start_here_common to the function .init.text:start_kernel()
The function start_here_common() references
the function __init start_kernel().
This is often because start_here_common lacks a __init 
annotation or the annotation of start_kernel is wrong.

Completed OK
# rm -rf /kisskb/build/linus-rand_randconfig+ppc64le_ppc64le-gcc5
# Build took: 0:05:20.931897