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written to the audit trail file: - audit_record_write() now returns void, and all file system specific error handling occurs inside this function. This pushes error handling complexity out of the record demux routine that hands off to both the trail and audit pipes, and makes trail behavior more consistent with pipes as a record destination. - Rate limit kernel printfs associated with running low on space. Rate limit audit triggers for low space. Rate limit printfs for fail stop events. Rate limit audit worker write error printfs. - Document in detail the types of limits and space checks we perform, and combine common cases. This improves the audit subsystems tolerance to low space conditions by avoiding toasting the console with printfs are waking up the audit daemon continuously. MFC after: 3 days Obtained from: TrustedBSD Project
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