Buildresult: powerpc-fixes/pseries_defconfig+NO_MEMORY_HOTPLUG/powerpc-gcc9 built on Jul 15 2021, 14:28

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Status:	OK
Date/Time:	Jul 15 2021, 14:28
Duration:	0:04:53.701104
Builder:	blade4b
Revision:	powerpc/preempt: Don't touch the idle task's preempt_count during hotplug (`2c669ef6979c370f98d4b876e54f19613c81e075)`
Target:	powerpc-fixes/pseries_defconfig+NO_MEMORY_HOTPLUG/powerpc-gcc9
Branch:	powerpc-fixes
Compiler:	powerpc-gcc9 (powerpc64-linux-gcc (GCC) 9.2.0 / GNU ld (GNU Binutils) 2.32)
Config:	pseries_defconfig+NO_MEMORY_HOTPLUG (download)
Log:	Download original No warnings found in log. Full Log # git rev-parse -q --verify 2c669ef6979c370f98d4b876e54f19613c81e075^{commit} 2c669ef6979c370f98d4b876e54f19613c81e075 already have revision, skipping fetch # git checkout -q -f -B kisskb 2c669ef6979c370f98d4b876e54f19613c81e075 # git clean -qxdf # < git log -1 # commit 2c669ef6979c370f98d4b876e54f19613c81e075 # Author: Valentin Schneider <valentin.schneider@arm.com> # Date: Wed Jul 7 19:38:31 2021 +0100 # # powerpc/preempt: Don't touch the idle task's preempt_count during hotplug # # Powerpc currently resets a CPU's idle task preempt_count to 0 before # said task starts executing the secondary startup routine (and becomes an # idle task proper). # # This conflicts with commit f1a0a376ca0c ("sched/core: Initialize the # idle task with preemption disabled"). # # which initializes all of the idle tasks' preempt_count to # PREEMPT_DISABLED during smp_init(). Note that this was superfluous # before said commit, as back then the hotplug machinery would invoke # init_idle() via idle_thread_get(), which would have already reset the # CPU's idle task's preempt_count to PREEMPT_ENABLED. # # Get rid of this preempt_count write. # # Fixes: f1a0a376ca0c ("sched/core: Initialize the idle task with preemption disabled") # Reported-by: Bharata B Rao <bharata@linux.ibm.com> # Signed-off-by: Valentin Schneider <valentin.schneider@arm.com> # Tested-by: Guenter Roeck <linux@roeck-us.net> # Tested-by: Bharata B Rao <bharata@linux.ibm.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Link: https://lore.kernel.org/r/20210707183831.2106509-1-valentin.schneider@arm.com # < /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 2c669ef6979c370f98d4b876e54f19613c81e075 # < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pseries_defconfig+NO_MEMORY_HOTPLUG_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- pseries_defconfig # Added to kconfig CONFIG_MEMORY_HOTPLUG=n # Added to kconfig CONFIG_MEMORY_HOTREMOVE=n # < make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pseries_defconfig+NO_MEMORY_HOTPLUG_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pseries_defconfig+NO_MEMORY_HOTPLUG_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig # make -s -j 24 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pseries_defconfig+NO_MEMORY_HOTPLUG_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- Completed OK # rm -rf /kisskb/build/powerpc-fixes_pseries_defconfig+NO_MEMORY_HOTPLUG_powerpc-gcc9 # Build took: 0:04:53.701104

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