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Brian Foster
1cc5517771
XFS is susceptible to log recovery problems if the fs crashes under certain circumstances. If the tail has been pinned for long enough to the log to fill and the next batch of log buffer submissions happen to fail, the filesystem shuts down having potentially overwritten part of the range between the last good tail->head range in the log. This causes log recovery to fail with crc mismatch or invalid log record errors. Add a test that uses XFS DEBUG mode error injection to force the tail overwrite condition with a known bad (crc mismatch) log write and tests that log recovery succeeds. Note that this problem is currently only reproducible with larger (non-default) log buffer sizes (i.e., '-o logbsize=256k') or smaller block sizes (1k). Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Eryu Guan <eguan@redhat.com> Signed-off-by: Eryu Guan <eguan@redhat.com>
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3 lines
44 B
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