Buildresult: powerpc-fixes/ppc6xx_defconfig/powerpc-gcc5 built on Jun 4 2019, 01:21
kisskb
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Status:
OK
Date/Time:
Jun 4 2019, 01:21
Duration:
0:01:08.566165
Builder:
ka4
Revision:
powerpc/64s: Fix THP PMD collapse serialisation (
f41c880e164dc3c9fc3eff6ed27e97583af41986)
Target:
powerpc-fixes/ppc6xx_defconfig/powerpc-gcc5
Branch:
powerpc-fixes
Compiler:
powerpc-gcc5
(powerpc64-linux-gcc (GCC) 5.5.0 / GNU ld (GNU Binutils) 2.29.1.20170915)
Config:
ppc6xx_defconfig
(
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Log:
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Possible warnings (3)
kernel/futex.c:1658:17: warning: 'oldval' may be used uninitialized in this function [-Wmaybe-uninitialized] include/sound/control.h:223:9: warning: 'speaker_vol' may be used uninitialized in this function [-Wmaybe-uninitialized] warning: same basename if the following are built as modules:
Full Log
# git rev-parse -q --verify f41c880e164dc3c9fc3eff6ed27e97583af41986^{commit} f41c880e164dc3c9fc3eff6ed27e97583af41986 already have revision, skipping fetch # git checkout -q -f -B kisskb f41c880e164dc3c9fc3eff6ed27e97583af41986 # git clean -qxdf # < git log -1 # commit f41c880e164dc3c9fc3eff6ed27e97583af41986 # Author: Nicholas Piggin <npiggin@gmail.com> # Date: Mon Jun 3 16:05:31 2019 +1000 # # powerpc/64s: Fix THP PMD collapse serialisation # # Commit 1b2443a547f9 ("powerpc/book3s64: Avoid multiple endian # conversion in pte helpers") changed the actual bitwise tests in # pte_access_permitted by using pte_write() and pte_present() helpers # rather than raw bitwise testing _PAGE_WRITE and _PAGE_PRESENT bits. # # The pte_present change now returns true for ptes which are # !_PAGE_PRESENT and _PAGE_INVALID, which is the combination used by # pmdp_invalidate to synchronize access from lock-free lookups. # pte_access_permitted is used by pmd_access_permitted, so allowing GUP # lock free access to proceed with such PTEs breaks this # synchronisation. # # This bug has been observed on HPT host, with random crashes and # corruption in guests, usually together with bad PMD messages in the # host. # # Fix this by adding an explicit check in pmd_access_permitted, and # documenting the condition explicitly. # # The pte_write() change should be okay, and would prevent GUP from # falling back to the slow path when encountering savedwrite ptes, which # matches what x86 (that does not implement savedwrite) does. # # Fixes: 1b2443a547f9 ("powerpc/book3s64: Avoid multiple endian conversion in pte helpers") # Cc: stable@vger.kernel.org # v4.20+ # Signed-off-by: Nicholas Piggin <npiggin@gmail.com> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # < /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 f41c880e164dc3c9fc3eff6ed27e97583af41986 # < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc6xx_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- ppc6xx_defconfig # make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_ppc6xx_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- /kisskb/src/kernel/futex.c: In function 'do_futex': /kisskb/src/kernel/futex.c:1658:17: warning: 'oldval' may be used uninitialized in this function [-Wmaybe-uninitialized] return oldval == cmparg; ^ /kisskb/src/kernel/futex.c:1633:6: note: 'oldval' was declared here int oldval, ret; ^ In file included from /kisskb/src/sound/ppc/pmac.h:25:0, from /kisskb/src/sound/ppc/awacs.c:29: /kisskb/src/sound/ppc/awacs.c: In function 'snd_pmac_awacs_init': /kisskb/src/include/sound/control.h:223:9: warning: 'speaker_vol' may be used uninitialized in this function [-Wmaybe-uninitialized] return _snd_ctl_add_slave(master, slave, 0); ^ /kisskb/src/sound/ppc/awacs.c:886:36: note: 'speaker_vol' was declared here struct snd_kcontrol *master_vol, *speaker_vol; ^ INFO: Uncompressed kernel (size 0xb018b8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb018b8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb018b8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb018b8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb018b8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb018b8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb018b8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb018b8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb018b8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xaf11a0) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) INFO: Uncompressed kernel (size 0xb018b8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xaf11a0) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xb00000) Image Name: Linux-5.2.0-rc1+ Created: Tue Jun 4 01:22:12 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5286700 Bytes = 5162.79 KiB = 5.04 MiB Load Address: 00c00000 Entry Point: 00c00294 Image Name: Linux-5.2.0-rc1+ Created: Tue Jun 4 01:22:12 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5286965 Bytes = 5163.05 KiB = 5.04 MiB Load Address: 00c00000 Entry Point: 00c00294 Image Name: Linux-5.2.0-rc1+ Created: Tue Jun 4 01:22:12 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5286894 Bytes = 5162.98 KiB = 5.04 MiB Load Address: 00c00000 Entry Point: 00c00294 Image Name: Linux-5.2.0-rc1+ Created: Tue Jun 4 01:22:12 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5256858 Bytes = 5133.65 KiB = 5.01 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-5.2.0-rc1+ Created: Tue Jun 4 01:22:12 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5287557 Bytes = 5163.63 KiB = 5.04 MiB Load Address: 00c00000 Entry Point: 00c00894 Image Name: Linux-5.2.0-rc1+ Created: Tue Jun 4 01:22:12 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5287142 Bytes = 5163.22 KiB = 5.04 MiB Load Address: 00c00000 Entry Point: 00c00294 Image Name: Linux-5.2.0-rc1+ Created: Tue Jun 4 01:22:12 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5287559 Bytes = 5163.63 KiB = 5.04 MiB Load Address: 00c00000 Entry Point: 00c00894 Image Name: Linux-5.2.0-rc1+ Created: Tue Jun 4 01:22:12 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5286945 Bytes = 5163.03 KiB = 5.04 MiB Load Address: 00c00000 Entry Point: 00c00294 Image Name: Linux-5.2.0-rc1+ Created: Tue Jun 4 01:22:12 2019 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5287569 Bytes = 5163.64 KiB = 5.04 MiB Load Address: 00c00000 Entry Point: 00c00294 warning: same basename if the following are built as modules: arch/powerpc/platforms/chrp/nvram.ko arch/powerpc/platforms/powermac/nvram.ko drivers/char/nvram.ko Completed OK # rm -rf /kisskb/build/powerpc-fixes_ppc6xx_defconfig_powerpc-gcc5 # Build took: 0:01:08.566165
© Michael Ellerman 2006-2018.