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ci: fix userfaultfd test failures

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Newer kernels (5.11) require echo 1 > /proc/sys/vm/unprivileged_userfaultfd

Without the 'echo 1' the kernel prints a message like this:

 uffd: Set unprivileged_userfaultfd sysctl knob to 1 if kernel faults must be handled without obtaining CAP_SYS_PTRACE capability

Signed-off-by: Adrian Reber <areber@redhat.com>
This commit is contained in:
Adrian Reber 2021-11-04 09:10:38 +00:00 • committed by Adrian Reber
parent e11c742e01
commit a86a66fc2c
1 changed files with 6 additions and 0 deletions
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6
scripts/ci/run-ci-tests.sh
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@ -197,6 +197,12 @@ fi
# shellcheck disable=SC2086
./test/zdtm.py run -a -p 2 --keep-going $ZDTM_OPTS
# Newer kernels are blocking access to userfaultfd:
# uffd: Set unprivileged_userfaultfd sysctl knob to 1 if kernel faults must be handled without obtaining CAP_SYS_PTRACE capability
if [ -e /proc/sys/vm/unprivileged_userfaultfd ]; then
echo 1 > /proc/sys/vm/unprivileged_userfaultfd
fi
LAZY_EXCLUDE="-x maps04 -x cmdlinenv00 -x maps007"
LAZY_TESTS='.*(maps0|uffd-events|lazy-thp|futex|fork).*'