# git rev-parse -q --verify cbc06f051c524dcfe52ef0d1f30647828e226d30^{commit} cbc06f051c524dcfe52ef0d1f30647828e226d30 already have revision, skipping fetch # git checkout -q -f -B kisskb cbc06f051c524dcfe52ef0d1f30647828e226d30 # git clean -qxdf # < git log -1 # commit cbc06f051c524dcfe52ef0d1f30647828e226d30 # Author: Cédric Le Goater # Date: Sat Aug 7 09:20:57 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 can not directly allocate and request the IPI on demand because # bringup_up() is called under the IRQ sparse lock. The alternative is # to allocate the IPIs for all possible nodes at startup and to request # the mapping on demand when the first CPU of a node is brought up. # # 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: Srikar Dronamraju # Tested-by: Laurent Vivier # Signed-off-by: Michael Ellerman # Link: https://lore.kernel.org/r/20210807072057.184698-1-clg@kaod.org # < /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 cbc06f051c524dcfe52ef0d1f30647828e226d30 # < make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pseries_defconfig+NO_MEMORY_HOTREMOVE_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=y # Added to kconfig CONFIG_MEMORY_HOTREMOVE=n # < make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pseries_defconfig+NO_MEMORY_HOTREMOVE_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pseries_defconfig+NO_MEMORY_HOTREMOVE_powerpc-gcc9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-9.2.0-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig # make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-fixes_pseries_defconfig+NO_MEMORY_HOTREMOVE_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_HOTREMOVE_powerpc-gcc9 # Build took: 0:02:22.504407