The cross-i686-tci CI job is persistently flaky with various tests
hitting timeouts.  One theory for why this is happening is that we're
running too many tests in parallel and so sometimes a test gets
starved of CPU and isn't able to complete within the timeout.

Set the MESON_TESTTHREADS environment variable to 1 for this job;
this will cause 'meson test' to run only one test at a time.

(Note that this relies on the change to meson2make that makes it
honour MESON_TESTTHREADS; otherwise it will have no effect.)

Signed-off-by: Peter Maydell <peter.mayd...@linaro.org>
---
Seems worth a try -- if this doesn't have an effect then
we can revert it, but we'll at least have determined what
the problem isn't...
---
 .gitlab-ci.d/crossbuilds.yml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.gitlab-ci.d/crossbuilds.yml b/.gitlab-ci.d/crossbuilds.yml
index cb499e4ee0d..ca1db011b11 100644
--- a/.gitlab-ci.d/crossbuilds.yml
+++ b/.gitlab-ci.d/crossbuilds.yml
@@ -70,6 +70,9 @@ cross-i686-tci:
     ACCEL: tcg-interpreter
     EXTRA_CONFIGURE_OPTS: 
--target-list=i386-softmmu,i386-linux-user,aarch64-softmmu,aarch64-linux-user,ppc-softmmu,ppc-linux-user
 --disable-plugins --disable-kvm
     MAKE_CHECK_ARGS: check check-tcg
+    # Force 'meson test' to run only one test at once, to
+    # see whether this reduces the flakiness of this CI job.
+    MESON_TESTTHREADS: 1
 
 cross-mipsel-system:
   extends: .cross_system_build_job
-- 
2.34.1


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