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tests: Ensure sufficient nofile limit for VFIO tests

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The VFIO tests based on the NVMe emulation framework require cause a
high number of file descriptors to be opened on the system. On systems
with a low limit on opened files, tests like test_vfio_user can possibly
fail with "too many open files" exeption. This issue is fixed by raising
the corresponding limit.

A tricky detail here is, that the limit has to be changed in the test
container and not on the host. As the the container is executed in the
privileged mode, the setting in it will override the host value.

Related: #5426

Signed-off-by: Anatol Belski <anbelski@linux.microsoft.com>
This commit is contained in:
Anatol Belski 2023-07-31 16:15:21 +02:00 committed by Rob Bradford
parent 9da7435f06
commit 0b6bc75d3a
1 changed files with 3 additions and 0 deletions
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scripts/run_integration_tests_x86_64.sh
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@ -185,6 +185,9 @@ sudo chmod a+rwX /dev/hugepages
# Update max locked memory to 'unlimited' to avoid issues with vDPA
ulimit -l unlimited
# Set number of open descriptors high enough for VFIO tests to run
ulimit -n 4096
export RUST_BACKTRACE=1
time cargo test $test_features "common_parallel::$test_filter" -- ${test_binary_args[*]}
RES=$?