# git rev-parse -q --verify 5714ee50bb4375bd586858ad800b1d9772847452^{commit}
5714ee50bb4375bd586858ad800b1d9772847452
already have revision, skipping fetch
# git checkout -q -f -B kisskb 5714ee50bb4375bd586858ad800b1d9772847452
# git clean -qxdf
# < git log -1
# commit 5714ee50bb4375bd586858ad800b1d9772847452
# Author: Kevin Buettner <kevinb@redhat.com>
# Date:   Sat Jul 18 00:20:03 2020 -0700
# 
#     copy_xstate_to_kernel: Fix typo which caused GDB regression
#     
#     This fixes a regression encountered while running the
#     gdb.base/corefile.exp test in GDB's test suite.
#     
#     In my testing, the typo prevented the sw_reserved field of struct
#     fxregs_state from being output to the kernel XSAVES area.  Thus the
#     correct mask corresponding to XCR0 was not present in the core file for
#     GDB to interrogate, resulting in the following behavior:
#     
#        [kev@f32-1 gdb]$ ./gdb -q testsuite/outputs/gdb.base/corefile/corefile testsuite/outputs/gdb.base/corefile/corefile.core
#        Reading symbols from testsuite/outputs/gdb.base/corefile/corefile...
#        [New LWP 232880]
#     
#        warning: Unexpected size of section `.reg-xstate/232880' in core file.
#     
#     With the typo fixed, the test works again as expected.
#     
#     Signed-off-by: Kevin Buettner <kevinb@redhat.com>
#     Fixes: 9e4636545933 ("copy_xstate_to_kernel(): don't leave parts of destination uninitialized")
#     Cc: Al Viro <viro@zeniv.linux.org.uk>
#     Cc: Dave Airlie <airlied@gmail.com>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 5714ee50bb4375bd586858ad800b1d9772847452
# < make -s -j 8 ARCH=um O=/kisskb/build/linus_um-defconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 defconfig
# < make -s -j 8 ARCH=um O=/kisskb/build/linus_um-defconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 help
# make -s -j 8 ARCH=um O=/kisskb/build/linus_um-defconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 olddefconfig
# make -s -j 8 ARCH=um O=/kisskb/build/linus_um-defconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 
/kisskb/src/arch/um/os-Linux/signal.c: In function 'sig_handler_common':
/kisskb/src/arch/um/os-Linux/signal.c:51:1: warning: the frame size of 2960 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 }
 ^
/kisskb/src/arch/um/os-Linux/signal.c: In function 'timer_real_alarm_handler':
/kisskb/src/arch/um/os-Linux/signal.c:95:1: warning: the frame size of 2960 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 }
 ^
  LINK linux
Completed OK
# rm -rf /kisskb/build/linus_um-defconfig_um-x86_64
# Build took: 0:01:02.404803