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gitlab: use 'setarch -R' to workaround tsan bug 

The TSAN job started failing when gitlab rolled out their latest
release. The root cause is a change in the Google COS version used
on shared runners. This brings a kernel running with

 vm.mmap_rnd_bits = 31

which is incompatible with TSAN in LLVM < 18, which only supports
upto '28'. LLVM 18 can support upto '30', and failing that will
re-exec itself to turn off VA randomization.

Our LLVM is too old for now, but we can run with 'setarch -R make ..'
to turn off VA randomization ourselves.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-ID: <20240513111551.488088-4-berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Daniel P. Berrangé 2024-05-13 12:15:51 +01:00 committed by Thomas Huth
parent c53f7a1078
commit b563959b90
1 changed files with 3 additions and 0 deletions
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3
.gitlab-ci.d/buildtest.yml
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@ -575,6 +575,9 @@ tsan-build:
CONFIGURE_ARGS: --enable-tsan --cc=clang --cxx=clang++ CONFIGURE_ARGS: --enable-tsan --cc=clang --cxx=clang++
--enable-trace-backends=ust --disable-slirp --enable-trace-backends=ust --disable-slirp
TARGETS: x86_64-softmmu ppc64-softmmu riscv64-softmmu x86_64-linux-user TARGETS: x86_64-softmmu ppc64-softmmu riscv64-softmmu x86_64-linux-user
# Remove when we switch to a distro with clang >= 18
# https://github.com/google/sanitizers/issues/1716
MAKE: setarch -R make
# gcov is a GCC features # gcov is a GCC features
gcov: gcov: