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fs: fix hugetlb tests - #87
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When the system has no huge page sizes available (e.g. /sys/kernel/mm/hugepages is absent in a build environment), cgroups.HugePageSizes returns an empty list, and HugetlbGroup's Set and GetStats are no-ops. As a result, the tests which expect GetStats to fail are failing, and the rest are passing vacuously. Skip all hugetlb tests in such case. Reported in opencontainers/runc#1822. Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
Some hugetlb tests use file name templates such as "hugetlb.%s.max_usage_in_bytes" as is, without substituting the page size. As a result, TestHugetlbStatsBadMaxUsageFile fails because the usage file is not found, rather than because the max usage file contents can't be parsed, and so it does not test what it is supposed to test. Fix this (and similar issues in other tests) by using proper file names for every available huge page size. Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
AkihiroSuda
approved these changes
Oct 9, 2026
odinuge
approved these changes
Nov 3, 2026
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Skip hugetlb tests if the system has no huge page sizes available (e.g. no
/sys/kernel/mm/hugepagesin a build environment). Without this,TestHugetlbStats{NoUsageFile,NoMaxUsageFile,BadUsageFile,BadMaxUsageFile}fail, sinceGetStatsis a no-op in this case, and the rest are passing vacuously.Fixes hugetlb_test fails on [ppc64el, s390x] runc#1822.
Fix file names in hugetlb failure tests. Some tests used the file name template (like
hugetlb.%s.max_usage_in_bytes) as is, so e.g.TestHugetlbStatsBadMaxUsageFilefailed because the usage file was not found, rather than because max usage can't be parsed.