Buildresult: powerpc-fixes/x86_64-defconfig/x86_64-gcc8 built on Jul 1, 22:20

kisskb

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Status:	OK
Date/Time:	Jul 1, 22:20
Duration:	0:01:35.824067
Builder:	ka4
Revision:	powerpc/pseries: Fix scv instruction crash with kexec (`21a741eb75f80397e5f7d3739e24d7d75e619011)`
Target:	powerpc-fixes/x86_64-defconfig/x86_64-gcc8
Branch:	powerpc-fixes
Compiler:	x86_64-gcc8 (x86_64-linux-gcc (GCC) 8.5.0 / GNU ld (GNU Binutils) 2.36.1)
Config:	defconfig (download)
Log:	Download original No warnings found in log. Full Log # git rev-parse -q --verify 21a741eb75f80397e5f7d3739e24d7d75e619011^{commit} 21a741eb75f80397e5f7d3739e24d7d75e619011 already have revision, skipping fetch # git checkout -q -f -B kisskb 21a741eb75f80397e5f7d3739e24d7d75e619011 # git clean -qxdf # < git log -1 # commit 21a741eb75f80397e5f7d3739e24d7d75e619011 # Author: Nicholas Piggin <npiggin@gmail.com> # Date: Tue Jun 25 23:40:47 2024 +1000 # # powerpc/pseries: Fix scv instruction crash with kexec # # kexec on pseries disables AIL (reloc_on_exc), required for scv # instruction support, before other CPUs have been shut down. This means # they can execute scv instructions after AIL is disabled, which causes an # interrupt at an unexpected entry location that crashes the kernel. # # Change the kexec sequence to disable AIL after other CPUs have been # brought down. # # As a refresher, the real-mode scv interrupt vector is 0x17000, and the # fixed-location head code probably couldn't easily deal with implementing # such high addresses so it was just decided not to support that interrupt # at all. # # Fixes: 7fa95f9adaee ("powerpc/64s: system call support for scv/rfscv instructions") # Cc: stable@vger.kernel.org # v5.9+ # Reported-by: Sourabh Jain <sourabhjain@linux.ibm.com> # Closes: https://lore.kernel.org/3b4b2943-49ad-4619-b195-bc416f1d1409@linux.ibm.com # Signed-off-by: Nicholas Piggin <npiggin@gmail.com> # Tested-by: Gautam Menghani <gautam@linux.ibm.com> # Tested-by: Sourabh Jain <sourabhjain@linux.ibm.com> # Link: https://msgid.link/20240625134047.298759-1-npiggin@gmail.com # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux-ld --version # < git log --format=%s --max-count=1 21a741eb75f80397e5f7d3739e24d7d75e619011 # make -s -j 40 ARCH=x86_64 O=/kisskb/build/powerpc-fixes_defconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux- defconfig # < make -s -j 40 ARCH=x86_64 O=/kisskb/build/powerpc-fixes_defconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux- help # make -s -j 40 ARCH=x86_64 O=/kisskb/build/powerpc-fixes_defconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux- olddefconfig # make -s -j 40 ARCH=x86_64 O=/kisskb/build/powerpc-fixes_defconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/x86_64-linux/bin/x86_64-linux- Completed OK # rm -rf /kisskb/build/powerpc-fixes_defconfig_x86_64-gcc8 # Build took: 0:01:35.824067

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