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Michał Kępień authored
$RANDFILE, i.e. bin/tests/system/random.data, should only be written to if a system test requires support for cryptography and that file does not already exist. Otherwise, when multiple system tests are run in parallel, that file might get truncated due to bin/tools/genrandom.c using fopen() with mode "w" when writing the destination file. With unfortunate timing, this may cause system tests employing BIND tools which need entropy (e.g. dnssec-keygen) to fail. Make sure bin/tests/system/metadata/tests.sh no longer calls bin/tools/genrandom since $RANDFILE is guaranteed to already be created by the time bin/tools/genrandom is currently called because bin/tests/system/metadata/prereq.sh uses bin/tests/system/testcrypto.sh. Make sure bin/tests/system/sfcache/prereq.sh only writes to $RANDFILE if it does not already exist.
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