The sysfs sync regression in issue #394 originates in
commit 530af782ed ("scst_vdisk: Add 'sync' sysfs attribute").
It dereferenced a closed file. Require a management rejection for inactive
devices, the last detach and ALUA states that close the backend, then
verify recovery.
Remove only the fixture device's internal copy-manager mappings when
checking the last attachment: an external LUN count alone does not prove
that the backend is closed. Use an explicit local session for successful
sync and preserve unrelated devices. Put session LUNs in an explicit
initiator group because scstadmin does not report the default group map
in its session listing.
Drop the temporary known-crash label, opt-in setting and example filter.
The inactive-sync regression now belongs to the default basic selection.
Link: https://github.com/SCST-project/scst/issues/394
Run one fio profile with concurrent 4K, 64K and 128K jobs in disjoint
regions. Cover buffered fileio with 512-byte sectors and direct blockio
with 4K sectors. Verify CRC32C data and completed byte counts, and follow
buffered I/O with direct verification to bypass the initiator page cache.
Reuse the SCSI fixtures and exported-device checks for both transports.
Require an explicit target block device and check its use and signatures
before exporting it. Configure the per-job region size and I/O timeout,
and retain rendered job files, JSON reports and stderr.
Cover job rendering and report validation with framework tests. Document
fio prerequisites, destructive scope and label selection through the
common Make targets.
Cover fileio activation and configuration persistence, local ALUA state
changes, relative target IDs, live-session group changes and copy-manager
rollback through scstadmin. Manage temporary backing files with device
cleanup and assert the session LUN maps exposed by the CLI.
Add configurable group/device churn and many-LUN teardown scenarios.
Keep the inactive-fileio sync reproducer behind an explicit opt-in
because it can crash affected kernels. Document the new configuration
options and test labels.
Add component tests for the scstadmin management interface, including
state preservation after rejected commands. Use scst_local and
vdisk_nullio to cover devices, targets, LUN mappings, initiator groups,
ALUA and configuration save/restore without physical storage.
Provide a shared runner with explicit configuration, host locking,
bounded command logs and JSON/JUnit reports. Select specs through labels
and focus before preparing the host, and reject empty selections. Parse
scstadmin output, including session attributes and LUN mappings, through
common helpers covered by framework tests.
Load checkout modules in suite setup, optionally build them first, and
unload them after successful cleanup. Add common Make targets for
framework checks, test selection and live runs, with setup documentation.
Gleb Chesnokov