Here's what I get in the syslog, it seems to happen when the ntop webpage is being accessed/refreshed:
May 29 14:58:02 efw-1243508257 ntop[29551]: **ERROR** SSL(ssl_init_connection)ERROR [Thread 29551]: error:1408A09F:SSL routines:SSL3_GET_CLIENT_HELLO:length mismatch at s3_srvr.c(855) May 29 14:58:02 efw-1243508257 ntop[29551]: **ERROR** SSL(read)ERROR [Thread 29551]: error:1408A09F:SSL routines:SSL3_GET_CLIENT_HELLO:length mismatch at s3_srvr.c(855) May 29 14:58:02 efw-1243508257 ntop[29551]: **WARNING** free of NULL pointer @ http.c:3787 May 29 14:58:02 efw-1243508257 ntop[29551]: **ERROR** SSL(ssl_init_connection)ERROR [Thread 29551]: error:1408A09F:SSL routines:SSL3_GET_CLIENT_HELLO:length mismatch at s3_srvr.c(855) May 29 14:58:02 efw-1243508257 ntop[29551]: **ERROR** SSL(read)ERROR [Thread 29551]: error:1408A09F:SSL routines:SSL3_GET_CLIENT_HELLO:length mismatch at s3_srvr.c(855) May 29 14:58:02 efw-1243508257 ntop[29551]: **WARNING** free of NULL pointer @ http.c:3787 May 29 14:58:02 efw-1243508257 ntop[29551]: EPIPE during sending of page to web client May 29 14:58:02 efw-1243508257 ntop[29551]: **ERROR** SSL(ssl_init_connection)ERROR [Thread 29551]: error:1408A09F:SSL routines:SSL3_GET_CLIENT_HELLO:length mismatch at s3_srvr.c(855) May 29 14:58:02 efw-1243508257 ntop[29551]: **ERROR** SSL(read)ERROR [Thread 29551]: error:1408A09F:SSL routines:SSL3_GET_CLIENT_HELLO:length mismatch at s3_srvr.c(855) May 29 14:58:02 efw-1243508257 ntop[29551]: **WARNING** free of NULL pointer @ http.c:3787 May 29 14:58:02 efw-1243508257 ntop[29551]: EPIPE during sending of page to web client May 29 14:58:02 efw-1243508257 ntop[29551]: **ERROR** SSL(ssl_init_connection)ERROR [Thread 29551]: error:1408A09F:SSL routines:SSL3_GET_CLIENT_HELLO:length mismatch at s3_srvr.c(855) May 29 14:58:02 efw-1243508257 ntop[29551]: **ERROR** SSL(read)ERROR [Thread 29551]: error:1408A09F:SSL routines:SSL3_GET_CLIENT_HELLO:length mismatch at s3_srvr.c(855) May 29 14:58:02 efw-1243508257 ntop[29551]: **WARNING** free of NULL pointer @ http.c:3787 May 29 14:58:02 efw-1243508257 ntop[29551]: **ERROR** SSL(ssl_init_connection)ERROR [Thread 29551]: error:1408A09F:SSL routines:SSL3_GET_CLIENT_HELLO:length mismatch at s3_srvr.c(855) May 29 14:58:02 efw-1243508257 ntop[29551]: **ERROR** SSL(read)ERROR [Thread 29551]: error:1408A09F:SSL routines:SSL3_GET_CLIENT_HELLO:length mismatch at s3_srvr.c(855) May 29 14:58:02 efw-1243508257 ntop[29551]: **WARNING** free of NULL pointer @ http.c:3787 May 29 14:58:02 efw-1243508257 ntop[29551]: **ERROR** SSL(ssl_init_connection)ERROR [Thread 29551]: error:1408A09F:SSL routines:SSL3_GET_CLIENT_HELLO:length mismatch at s3_srvr.c(855) May 29 14:58:02 efw-1243508257 ntop[29551]: **ERROR** SSL(read)ERROR [Thread 29551]: error:1408A09F:SSL routines:SSL3_GET_CLIENT_HELLO:length mismatch at s3_srvr.c(855) May 29 14:58:02 efw-1243508257 ntop[29551]: **WARNING** free of NULL pointer @ http.c:3787 May 29 14:58:02 efw-1243508257 ntop[29551]: **ERROR** SSL(ssl_init_connection)ERROR [Thread 29551]: error:1408A09F:SSL routines:SSL3_GET_CLIENT_HELLO:length mismatch at s3_srvr.c(855) May 29 14:58:02 efw-1243508257 ntop[29551]: **ERROR** SSL(read)ERROR [Thread 29551]: error:1408A09F:SSL routines:SSL3_GET_CLIENT_HELLO:length mismatch at s3_srvr.c(855) May 29 14:58:02 efw-1243508257 ntop[29551]: **WARNING** free of NULL pointer @ http.c:3787 May 29 14:58:02 efw-1243508257 ntop[29551]: **ERROR** SSL(ssl_init_connection)ERROR [Thread 29551]: error:1408A09F:SSL routines:SSL3_GET_CLIENT_HELLO:length mismatch at s3_srvr.c(855) May 29 14:58:02 efw-1243508257 ntop[29551]: **ERROR** SSL(read)ERROR [Thread 29551]: error:1408A09F:SSL routines:SSL3_GET_CLIENT_HELLO:length mismatch at s3_srvr.c(855) May 29 14:58:02 efw-1243508257 ntop[29551]: **WARNING** free of NULL pointer @ http.c:3787 May 29 14:58:02 efw-1243508257 ntop[29551]: **ERROR** SSL(ssl_init_connection)ERROR [Thread 29551]: error:1408A09F:SSL routines:SSL3_GET_CLIENT_HELLO:length mismatch at s3_srvr.c(855) May 29 14:58:02 efw-1243508257 ntop[29551]: **ERROR** SSL(read)ERROR [Thread 29551]: error:1408A09F:SSL routines:SSL3_GET_CLIENT_HELLO:length mismatch at s3_srvr.c(855) May 29 14:58:02 efw-1243508257 ntop[29551]: **WARNING** free of NULL pointer @ http.c:3787 May 29 14:58:02 efw-1243508257 ntop[29551]: **ERROR** SSL(ssl_init_connection)ERROR [Thread 29551]: error:1408A09F:SSL routines:SSL3_GET_CLIENT_HELLO:length mismatch at s3_srvr.c(855) May 29 14:58:02 efw-1243508257 ntop[29551]: **ERROR** SSL(read)ERROR [Thread 29551]: error:1408A09F:SSL routines:SSL3_GET_CLIENT_HELLO:length mismatch at s3_srvr.c(855) May 29 14:58:02 efw-1243508257 ntop[29551]: **WARNING** free of NULL pointer @ http.c:3787 May 29 14:58:02 efw-1243508257 ntop[29551]: **ERROR** SSL(ssl_init_connection)ERROR [Thread 29551]: error:1408A09F:SSL routines:SSL3_GET_CLIENT_HELLO:length mismatch at s3_srvr.c(855) May 29 14:58:02 efw-1243508257 ntop[29551]: **ERROR** SSL(read)ERROR [Thread 29551]: error:1408A09F:SSL routines:SSL3_GET_CLIENT_HELLO:length mismatch at s3_srvr.c(855) May 29 14:58:02 efw-1243508257 ntop[29551]: **WARNING** free of NULL pointer @ http.c:3787 -- View this message in context: http://www.nabble.com/NTOP-unresponsive-high-CPU-utilization-tp23785167p23785544.html Sent from the efw-user mailing list archive at Nabble.com. ------------------------------------------------------------------------------ Register Now for Creativity and Technology (CaT), June 3rd, NYC. 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