Buildresult: powerpc-next/ppc64le_defconfig+NO_KPROBES/powerpc-gcc5 built on Jan 30 2020, 02:00

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Status:	OK
Date/Time:	Jan 30 2020, 02:00
Duration:	0:02:56.872494
Builder:	ka3
Revision:	powerpc/32s: Fix CPU wake-up from sleep mode (`9933819099c4600b41a042f27a074470a43cf6b9)`
Target:	powerpc-next/ppc64le_defconfig+NO_KPROBES/powerpc-gcc5
Branch:	powerpc-next
Compiler:	powerpc-gcc5 (powerpc64-linux-gcc (GCC) 5.5.0 / GNU ld (GNU Binutils) 2.29.1.20170915)
Config:	ppc64le_defconfig+NO_KPROBES (download)
Log:	Download original Possible warnings (3) WARNING: vmlinux.o(.text+0x31e4): Section mismatch in reference from the variable __boot_from_prom to the function .init.text:prom_init() WARNING: vmlinux.o(.text+0x33c8): Section mismatch in reference from the variable start_here_common to the function .init.text:start_kernel() WARNING: 2 bad relocations Full Log # git rev-parse -q --verify 9933819099c4600b41a042f27a074470a43cf6b9^{commit} 9933819099c4600b41a042f27a074470a43cf6b9 already have revision, skipping fetch # git checkout -q -f -B kisskb 9933819099c4600b41a042f27a074470a43cf6b9 # git clean -qxdf # < git log -1 # commit 9933819099c4600b41a042f27a074470a43cf6b9 # Author: Christophe Leroy <christophe.leroy@c-s.fr> # Date: Mon Jan 27 10:42:04 2020 +0000 # # powerpc/32s: Fix CPU wake-up from sleep mode # # Commit f7354ccac844 ("powerpc/32: Remove CURRENT_THREAD_INFO and # rename TI_CPU") broke the CPU wake-up from sleep mode (i.e. when # _TLF_SLEEPING is set) by delaying the tovirt(r2, r2). # # This is because r2 is not restored by fast_exception_return. It used # to work (by chance ?) because CPU wake-up interrupt never comes from # user, so r2 is expected to point to 'current' on return. # # Commit e2fb9f544431 ("powerpc/32: Prepare for Kernel Userspace Access # Protection") broke it even more by clobbering r0 which is not # restored by fast_exception_return either. # # Use r6 instead of r0. This is possible because r3-r6 are restored by # fast_exception_return and only r3-r5 are used for exception arguments. # # For r2 it could be converted back to virtual address, but stay on the # safe side and restore it from the stack instead. It should be live # in the cache at that moment, so loading from the stack should make # no difference compared to converting it from phys to virt. # # Fixes: f7354ccac844 ("powerpc/32: Remove CURRENT_THREAD_INFO and rename TI_CPU") # Fixes: e2fb9f544431 ("powerpc/32: Prepare for Kernel Userspace Access Protection") # Cc: stable@vger.kernel.org # Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Link: https://lore.kernel.org/r/6d02c3ae6ad77af34392e98117e44c2bf6d13ba1.1580121710.git.christophe.leroy@c-s.fr # < /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 9933819099c4600b41a042f27a074470a43cf6b9 # < make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc64le_defconfig+NO_KPROBES_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- ppc64le_defconfig # Added to kconfig CONFIG_KPROBES=n # yes \n \| make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc64le_defconfig+NO_KPROBES_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- oldconfig yes: standard output: Broken pipe # make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc64le_defconfig+NO_KPROBES_ppc64le-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- WARNING: vmlinux.o(.text+0x31e4): Section mismatch in reference from the variable __boot_from_prom to the function .init.text:prom_init() The function __boot_from_prom() references the function __init prom_init(). This is often because __boot_from_prom lacks a __init annotation or the annotation of prom_init is wrong. WARNING: vmlinux.o(.text+0x33c8): Section mismatch in reference from the variable start_here_common to the function .init.text:start_kernel() The function start_here_common() references the function __init start_kernel(). This is often because start_here_common lacks a __init annotation or the annotation of start_kernel is wrong. WARNING: 2 bad relocations c000000001606678 R_PPC64_ADDR64 _binary__btf_vmlinux_bin_start c000000001606680 R_PPC64_ADDR64 _binary__btf_vmlinux_bin_end Completed OK # rm -rf /kisskb/build/powerpc-next_ppc64le_defconfig+NO_KPROBES_ppc64le-gcc5 # Build took: 0:02:56.872494

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