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Accounting audit messages dropped from kernel



Hi, all

I'm running a customized user-level audit client and getting the following messages from /var/log/kern.log every now and then. 
The message seems like that it is dropping audit messages due to buffer limitations. 


Dec 11 21:46:56 hostname-10 kernel: [2081500.871616] audit_log_start: 109700 callbacks suppressed
Dec 11 21:46:56 hostname-10 kernel: [2081500.871620] audit: audit_backlog=102401 > audit_backlog_limit=102400
Dec 11 21:46:56 hostname-10 kernel: [2081500.871622] audit: audit_lost=-295739022 audit_rate_limit=0 audit_backlog_limit=102400
Dec 11 21:46:56 hostname-10 kernel: [2081500.871623] audit: backlog limit exceeded
Dec 11 21:46:56 hostname-10 kernel: [2081500.871646] audit: audit_backlog=102401 > audit_backlog_limit=102400
Dec 11 21:46:56 hostname-10 kernel: [2081500.871647] audit: audit_lost=-295739021 audit_rate_limit=0 audit_backlog_limit=102400
Dec 11 21:46:56 hostname-10 kernel: [2081500.871648] audit: backlog limit exceeded
Dec 11 21:46:56 hostname-10 kernel: [2081500.871657] audit: audit_backlog=102401 > audit_backlog_limit=102400
Dec 11 21:46:56 hostname-10 kernel: [2081500.871659] audit: audit_lost=-295739020 audit_rate_limit=0 audit_backlog_limit=102400
Dec 11 21:46:56 hostname-10 kernel: [2081500.871660] audit: backlog limit exceeded
Dec 11 21:46:56 hostname-10 kernel: [2081500.871665] audit: audit_backlog=102401 > audit_backlog_limit=102400

What I want to know more from this is that how many messages we are missing. 
For this, can I simply refer audit_lost field? or I also need to consider the value from " callbacks suppressed" line?

If anyone can help with this it will be very helpful.

Regards, Kangkook


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