[DO-NOT-MERGE] Debug bind mount environment info - #140
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Diagnostic test to dump host and bst mount state when bind-mounting /dev/shm onto /mnt. This is to investigate why the mountinfo-based bind mount test fails in some CI environments (barney) where /dev/shm may not be a separate tmpfs mount. Dumps: /proc/self/mountinfo, /proc/mounts, /dev/shm stat, findmnt, namespace links, and capabilities — both on host and inside bst.
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DO NOT MERGE — diagnostic only
Diagnostic test to understand why the
mountinfo-based bind mount test(from #139) fails in barney CI where
/dev/shmis not mounted by default.Dumps:
/proc/self/mountinfoand/proc/mountson host and inside bst/dev/shmstat,findmnt,ls -la--mount /dev/shm,/mnt,none,bindThe test is intentionally expected to fail — we want the output diff.
Context: #139, #137, #138