# git rev-parse -q --verify f5b7769eb0400ec5217a47e41148a9f816ca1f9f^{commit}
f5b7769eb0400ec5217a47e41148a9f816ca1f9f
already have revision, skipping fetch
# git checkout -q -f -B kisskb f5b7769eb0400ec5217a47e41148a9f816ca1f9f
# git clean -qxdf
# < git log -1
# commit f5b7769eb0400ec5217a47e41148a9f816ca1f9f
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Tue Jun 12 20:52:16 2018 -0700
# 
#     Revert "debugfs: inode: debugfs_create_dir uses mode permission from parent"
#     
#     This reverts commit 95cde3c59966f6371b6bcd9e4e2da2ba64ee9775.
#     
#     The commit had good intentions, but it breaks kvm-tool and qemu-kvm.
#     
#     With it in place, "lkvm run" just fails with
#     
#       Error: KVM_CREATE_VM ioctl
#       Warning: Failed init: kvm__init
#     
#     which isn't a wonderful error message, but bisection pinpointed the
#     problematic commit.
#     
#     The problem is almost certainly due to the special kvm debugfs entries
#     created dynamically by kvm under /sys/kernel/debug/kvm/.  See
#     kvm_create_vm_debugfs()
#     
#     Bisected-and-reported-by: Linus Torvalds <torvalds@linux-foundation.org>
#     Cc: Wanpeng Li <kernellwp@gmail.com>
#     Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
#     Cc: Thomas Richter <tmricht@linux.ibm.com>
#     Cc: Kees Cook <keescook@chromium.org>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-gcc --version
# < git log --format=%s --max-count=1 f5b7769eb0400ec5217a47e41148a9f816ca1f9f
# < make -s -j 8 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  allmodconfig
# make -s -j 8 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  
arch/arm64/Makefile:27: ld does not support --fix-cortex-a53-843419; kernel may be susceptible to erratum
arch/arm64/Makefile:40: LSE atomics not supported by binutils
<stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp]
/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-ld: net/bpfilter/bpfilter_umh.o: compiled for a little endian system and target is big endian
/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-ld: failed to merge target specific data of file net/bpfilter/bpfilter_umh.o
/kisskb/src/scripts/Makefile.build:530: recipe for target 'net/bpfilter/bpfilter.o' failed
make[3]: *** [net/bpfilter/bpfilter.o] Error 1
/kisskb/src/scripts/Makefile.build:558: recipe for target 'net/bpfilter' failed
make[2]: *** [net/bpfilter] Error 2
make[2]: *** Waiting for unfinished jobs....
/kisskb/src/Makefile:1072: recipe for target 'net' failed
make[1]: *** [net] Error 2
make[1]: *** Waiting for unfinished jobs....
/kisskb/src/drivers/isdn/hardware/eicon/message.c: In function 'sig_ind':
/kisskb/src/drivers/isdn/hardware/eicon/message.c:5985:1: warning: the frame size of 2064 bytes is larger than 2048 bytes [-Wframe-larger-than=]
 }
 ^
Makefile:146: recipe for target 'sub-make' failed
make: *** [sub-make] Error 2
Command 'make -s -j 8 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64 CROSS_COMPILE=/opt/cross/kisskb/br-aarch64-glibc-2016.08-613-ge98b4dd/bin/aarch64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus_arm64-allmodconfig_arm64
# Build took: 0:18:52.774171