# git rev-parse -q --verify 6fdf886424cf8c4fff96a20189c00606327e5df6^{commit}
6fdf886424cf8c4fff96a20189c00606327e5df6
already have revision, skipping fetch
# git checkout -q -f -B kisskb 6fdf886424cf8c4fff96a20189c00606327e5df6
# git clean -qxdf
# < git log -1
# commit 6fdf886424cf8c4fff96a20189c00606327e5df6
# Merge: db850a9b8d17 6c405b24097c
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Thu Nov 18 12:41:14 2021 -0800
# 
#     Merge tag 'for-5.16-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
#     
#     Pull btrfs fixes from David Sterba:
#      "Several xes and one old ioctl deprecation. Namely there's fix for
#       crashes/warnings with lzo compression that was suspected to be caused
#       by first pull merge resolution, but it was a different bug.
#     
#       Summary:
#     
#        - regression fix for a crash in lzo due to missing boundary checks of
#          the page array
#     
#        - fix crashes on ARM64 due to missing barriers when synchronizing
#          status bits between work queues
#     
#        - silence lockdep when reading chunk tree during mount
#     
#        - fix false positive warning in integrity checker on devices with
#          disabled write caching
#     
#        - fix signedness of bitfields in scrub
#     
#        - start deprecation of balance v1 ioctl"
#     
#     * tag 'for-5.16-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
#       btrfs: deprecate BTRFS_IOC_BALANCE ioctl
#       btrfs: make 1-bit bit-fields of scrub_page unsigned int
#       btrfs: check-integrity: fix a warning on write caching disabled disk
#       btrfs: silence lockdep when reading chunk tree during mount
#       btrfs: fix memory ordering between normal and ordered work functions
#       btrfs: fix a out-of-bound access in copy_compressed_data_to_page()
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/s390-linux/bin/s390-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-11.1.0-nolibc/s390-linux/bin/s390-linux-ld --version
# < git log --format=%s --max-count=1 6fdf886424cf8c4fff96a20189c00606327e5df6
# < make -s -j 48 ARCH=s390 O=/kisskb/build/linus_s390-allmodconfig_s390x-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/s390-linux/bin/s390-linux-  allmodconfig
# Added to kconfig CONFIG_BUILD_DOCSRC=n
# Added to kconfig CONFIG_MODULE_SIG=n
# Added to kconfig CONFIG_SAMPLES=n
# < make -s -j 48 ARCH=s390 O=/kisskb/build/linus_s390-allmodconfig_s390x-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/s390-linux/bin/s390-linux-  help
# make -s -j 48 ARCH=s390 O=/kisskb/build/linus_s390-allmodconfig_s390x-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/s390-linux/bin/s390-linux-  olddefconfig
# make -s -j 48 ARCH=s390 O=/kisskb/build/linus_s390-allmodconfig_s390x-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/s390-linux/bin/s390-linux-  
<stdin>:1559:2: warning: #warning syscall futex_waitv not implemented [-Wcpp]
In file included from /kisskb/src/include/linux/string.h:253,
                 from /kisskb/src/include/linux/bitmap.h:10,
                 from /kisskb/src/include/linux/cpumask.h:12,
                 from /kisskb/src/include/linux/smp.h:13,
                 from /kisskb/src/include/linux/lockdep.h:14,
                 from /kisskb/src/include/linux/rcupdate.h:29,
                 from /kisskb/src/include/linux/rculist.h:11,
                 from /kisskb/src/include/linux/pid.h:5,
                 from /kisskb/src/include/linux/sched.h:14,
                 from /kisskb/src/arch/s390/include/asm/pgtable.h:15,
                 from /kisskb/src/arch/s390/include/asm/kasan.h:5,
                 from /kisskb/src/include/linux/kasan.h:18,
                 from /kisskb/src/lib/test_kasan.c:10:
In function 'memcmp',
    inlined from 'kasan_memcmp' at /kisskb/src/lib/test_kasan.c:897:2:
/kisskb/src/include/linux/fortify-string.h:263:25: error: call to '__read_overflow' declared with attribute error: detected read beyond size of object (1st parameter)
  263 |                         __read_overflow();
      |                         ^~~~~~~~~~~~~~~~~
In function 'memchr',
    inlined from 'kasan_memchr' at /kisskb/src/lib/test_kasan.c:872:2:
/kisskb/src/include/linux/fortify-string.h:277:17: error: call to '__read_overflow' declared with attribute error: detected read beyond size of object (1st parameter)
  277 |                 __read_overflow();
      |                 ^~~~~~~~~~~~~~~~~
make[2]: *** [/kisskb/src/scripts/Makefile.build:287: lib/test_kasan.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/kisskb/src/Makefile:1846: lib] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:219: __sub-make] Error 2
Command 'make -s -j 48 ARCH=s390 O=/kisskb/build/linus_s390-allmodconfig_s390x-gcc11 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-11.1.0-nolibc/s390-linux/bin/s390-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus_s390-allmodconfig_s390x-gcc11
# Build took: 0:21:09.344398