Buildresult: powerpc-next/mgcoge_defconfig/powerpc-gcc5 built on Jan 14 2019, 20:48

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Status:	OK
Date/Time:	Jan 14 2019, 20:48
Duration:	0:00:50.432543
Builder:	ka3
Revision:	selftests/powerpc: New TM signal self test (`ebda7e3c2ebb244682d068c7d9ad8ad25404295a)`
Target:	powerpc-next/mgcoge_defconfig/powerpc-gcc5
Branch:	powerpc-next
Compiler:	powerpc-gcc5 (powerpc64-linux-gcc (GCC) 5.5.0 / GNU ld (GNU Binutils) 2.29.1.20170915)
Config:	mgcoge_defconfig (download)
Log:	Download original Possible warnings (1) arch/powerpc/kernel/head_32.S:994: Warning: invalid register expression Full Log # git rev-parse -q --verify ebda7e3c2ebb244682d068c7d9ad8ad25404295a^{commit} ebda7e3c2ebb244682d068c7d9ad8ad25404295a already have revision, skipping fetch # git checkout -q -f -B kisskb ebda7e3c2ebb244682d068c7d9ad8ad25404295a # git clean -qxdf # < git log -1 # commit ebda7e3c2ebb244682d068c7d9ad8ad25404295a # Author: Breno Leitao <leitao@debian.org> # Date: Tue Jan 8 09:31:21 2019 -0200 # # selftests/powerpc: New TM signal self test # # A new self test that forces MSR[TS] to be set without calling any TM # instruction. This test also tries to cause a page fault at a signal # handler, exactly between MSR[TS] set and tm_recheckpoint(), forcing # thread->texasr to be rewritten with TEXASR[FS] = 0, which will cause a BUG # when tm_recheckpoint() is called. # # This test is not deterministic, since it is hard to guarantee that the page # access will cause a page fault. In order to force more page faults at # signal context, the signal handler and the ucontext are being mapped into a # MADV_DONTNEED memory chunks. # # Tests have shown that the bug could be exposed with few interactions in a # buggy kernel. This test is configured to loop 5000x, having a good chance # to hit the kernel issue in just one run. This self test takes less than # two seconds to run. # # This test uses set/getcontext because the kernel will recheckpoint # zeroed structures, causing the test to segfault, which is undesired because # the test needs to rerun, so, there is a signal handler for SIGSEGV which # will restart the test. # # v2: Uses the MADV_DONTNEED memory advice # v3: Fix memcpy and 32-bits compilation # v4: Does not define unused macros # # Signed-off-by: Breno Leitao <leitao@debian.org> # 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 ebda7e3c2ebb244682d068c7d9ad8ad25404295a # < make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next_mgcoge_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- mgcoge_defconfig # make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next_mgcoge_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- /kisskb/src/arch/powerpc/kernel/head_32.S: Assembler messages: /kisskb/src/arch/powerpc/kernel/head_32.S:994: Warning: invalid register expression Completed OK # rm -rf /kisskb/build/powerpc-next_mgcoge_defconfig_powerpc-gcc5 # Build took: 0:00:50.432543

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