# git rev-parse -q --verify 35ce8ae9ae2e471f92759f9d6880eab42cc1c3b6^{commit}
35ce8ae9ae2e471f92759f9d6880eab42cc1c3b6
already have revision, skipping fetch
# git checkout -q -f -B kisskb 35ce8ae9ae2e471f92759f9d6880eab42cc1c3b6
# git clean -qxdf
# < git log -1
# commit 35ce8ae9ae2e471f92759f9d6880eab42cc1c3b6
# Merge: 6661224e66f0 a403df29789b
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Mon Jan 17 05:49:30 2022 +0200
# 
#     Merge branch 'signal-for-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
#     
#     Pull signal/exit/ptrace updates from Eric Biederman:
#      "This set of changes deletes some dead code, makes a lot of cleanups
#       which hopefully make the code easier to follow, and fixes bugs found
#       along the way.
#     
#       The end-game which I have not yet reached yet is for fatal signals
#       that generate coredumps to be short-circuit deliverable from
#       complete_signal, for force_siginfo_to_task not to require changing
#       userspace configured signal delivery state, and for the ptrace stops
#       to always happen in locations where we can guarantee on all
#       architectures that the all of the registers are saved and available on
#       the stack.
#     
#       Removal of profile_task_ext, profile_munmap, and profile_handoff_task
#       are the big successes for dead code removal this round.
#     
#       A bunch of small bug fixes are included, as most of the issues
#       reported were small enough that they would not affect bisection so I
#       simply added the fixes and did not fold the fixes into the changes
#       they were fixing.
#     
#       There was a bug that broke coredumps piped to systemd-coredump. I
#       dropped the change that caused that bug and replaced it entirely with
#       something much more restrained. Unfortunately that required some
#       rebasing.
#     
#       Some successes after this set of changes: There are few enough calls
#       to do_exit to audit in a reasonable amount of time. The lifetime of
#       struct kthread now matches the lifetime of struct task, and the
#       pointer to struct kthread is no longer stored in set_child_tid. The
#       flag SIGNAL_GROUP_COREDUMP is removed. The field group_exit_task is
#       removed. Issues where task->exit_code was examined with
#       signal->group_exit_code should been examined were fixed.
#     
#       There are several loosely related changes included because I am
#       cleaning up and if I don't include them they will probably get lost.
#     
#       The original postings of these changes can be found at:
#          https://lkml.kernel.org/r/87a6ha4zsd.fsf@email.froward.int.ebiederm.org
#          https://lkml.kernel.org/r/87bl1kunjj.fsf@email.froward.int.ebiederm.org
#          https://lkml.kernel.org/r/87r19opkx1.fsf_-_@email.froward.int.ebiederm.org
#     
#       I trimmed back the last set of changes to only the obviously correct
#       once. Simply because there was less time for review than I had hoped"
#     
#     * 'signal-for-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (44 commits)
#       ptrace/m68k: Stop open coding ptrace_report_syscall
#       ptrace: Remove unused regs argument from ptrace_report_syscall
#       ptrace: Remove second setting of PT_SEIZED in ptrace_attach
#       taskstats: Cleanup the use of task->exit_code
#       exit: Use the correct exit_code in /proc/<pid>/stat
#       exit: Fix the exit_code for wait_task_zombie
#       exit: Coredumps reach do_group_exit
#       exit: Remove profile_handoff_task
#       exit: Remove profile_task_exit & profile_munmap
#       signal: clean up kernel-doc comments
#       signal: Remove the helper signal_group_exit
#       signal: Rename group_exit_task group_exec_task
#       coredump: Stop setting signal->group_exit_task
#       signal: Remove SIGNAL_GROUP_COREDUMP
#       signal: During coredumps set SIGNAL_GROUP_EXIT in zap_process
#       signal: Make coredump handling explicit in complete_signal
#       signal: Have prepare_signal detect coredumps using signal->core_state
#       signal: Have the oom killer detect coredumps using signal->core_state
#       exit: Move force_uaccess back into do_exit
#       exit: Guarantee make_task_dead leaks the tsk when calling do_task_exit
#       ...
# < /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 35ce8ae9ae2e471f92759f9d6880eab42cc1c3b6
# < make -s -j 10 ARCH=powerpc O=/kisskb/build/linus_skiroot_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  skiroot_defconfig
# < make -s -j 10 ARCH=powerpc O=/kisskb/build/linus_skiroot_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 10 ARCH=powerpc O=/kisskb/build/linus_skiroot_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
# make -s -j 10 ARCH=powerpc O=/kisskb/build/linus_skiroot_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
/kisskb/src/arch/powerpc/kernel/stacktrace.c: In function 'handle_backtrace_ipi':
/kisskb/src/arch/powerpc/kernel/stacktrace.c:171:2: error: implicit declaration of function 'nmi_cpu_backtrace' [-Werror=implicit-function-declaration]
  nmi_cpu_backtrace(regs);
  ^
/kisskb/src/arch/powerpc/kernel/stacktrace.c: In function 'arch_trigger_cpumask_backtrace':
/kisskb/src/arch/powerpc/kernel/stacktrace.c:226:2: error: implicit declaration of function 'nmi_trigger_cpumask_backtrace' [-Werror=implicit-function-declaration]
  nmi_trigger_cpumask_backtrace(mask, exclude_self, raise_backtrace_ipi);
  ^
cc1: all warnings being treated as errors
make[3]: *** [/kisskb/src/scripts/Makefile.build:288: arch/powerpc/kernel/stacktrace.o] Error 1
make[2]: *** [/kisskb/src/scripts/Makefile.build:550: arch/powerpc/kernel] Error 2
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/kisskb/src/Makefile:1840: arch/powerpc] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:219: __sub-make] Error 2
Command 'make -s -j 10 ARCH=powerpc O=/kisskb/build/linus_skiroot_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus_skiroot_defconfig_powerpc-gcc5
# Build took: 0:03:38.669237