# git rev-parse -q --verify de17ea0120bbdcec33983489c58dc6acb2281c3c^{commit} de17ea0120bbdcec33983489c58dc6acb2281c3c already have revision, skipping fetch # git checkout -q -f -B kisskb de17ea0120bbdcec33983489c58dc6acb2281c3c # git clean -qxdf # < git log -1 # commit de17ea0120bbdcec33983489c58dc6acb2281c3c # Author: Cédric Le Goater # Date: Tue Jun 29 15:15:42 2021 +0200 # # powerpc/xive: Do not skip CPU-less nodes when creating the IPIs # # On PowerVM, CPU-less nodes can be populated with hot-plugged CPUs at # runtime. Today, the IPI is not created for such nodes, and hot-plugged # CPUs use a bogus IPI, which leads to soft lockups. # # We could create the node IPI on demand but it is a bit complex because # this code would be called under bringup_up() and some IRQ locking is # being done. The simplest solution is to create the IPIs for all nodes # at startup. # # Fixes: 7dcc37b3eff9 ("powerpc/xive: Map one IPI interrupt per node") # Cc: stable@vger.kernel.org # v5.13 # Reported-by: Geetika Moolchandani # Signed-off-by: Cédric Le Goater # Tested-by: Laurent Vivier # Tested-by: Srikar Dronamraju # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/20210629131542.743888-1-clg@kaod.org # < /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 de17ea0120bbdcec33983489c58dc6acb2281c3c # < make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pseries_defconfig+NO_MEMORY_HOTPLUG_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-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 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pseries_defconfig+NO_MEMORY_HOTPLUG_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pseries_defconfig+NO_MEMORY_HOTPLUG_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig # make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pseries_defconfig+NO_MEMORY_HOTPLUG_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- Completed OK # rm -rf /kisskb/build/powerpc-fixes_pseries_defconfig+NO_MEMORY_HOTPLUG_powerpc-gcc5 # Build took: 0:02:03.134775