Messages in this thread | | | From | John Bradford <> | Subject | Re: KERNEL: assertion tcp.c in 2.4.20 | Date | Tue, 24 Dec 2002 15:41:00 +0000 (GMT) |
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> I have been seeing some odd errors in 2.4.20. > KERNEL: assertion (newsk->state != TCP_SYN_RECV) failed at tcp.c(2229) > KERNEL: assertion > ((1<<sk2->state)&(TCPF_ESTABLISHED|TCPF_CLOSE_WAIT|TCPF_CLOSE)) failed > at af_inet.c(689) > KERNEL: assertion (newsk->state != TCP_SYN_RECV) failed at tcp.c(2229) > KERNEL: assertion > ((1<<sk2->state)&(TCPF_ESTABLISHED|TCPF_CLOSE_WAIT|TCPF_CLOSE)) failed > at af_inet.c(689) > KERNEL: assertion (newsk->state != TCP_SYN_RECV) failed at tcp.c(2229) > KERNEL: assertion > ((1<<sk2->state)&(TCPF_ESTABLISHED|TCPF_CLOSE_WAIT|TCPF_CLOSE)) failed > at af_inet.c(689) > > Could some one tell me what that means and if I should be worried. > > Also I get alot other TCP: messages Could some one explain to me what > these mean? > TCP: drop open request from 63.65.68.246/33287 > TCP: drop open request from 24.184.185.85/3568 > TCP: drop open request from 24.184.185.85/3569 > TCP: drop open request from 24.184.185.85/3567 > TCP: drop open request from 24.184.185.85/3570 > TCP: drop open request from 24.184.185.85/3571 > TCP: drop open request from 24.184.185.85/3572 > TCP: drop open request from 24.184.185.85/3573 > TCP: drop open request from 24.184.185.85/3574 > TCP: drop open request from 24.184.185.85/3575 > NET: 147 messages suppressed.
Looks like a SYN flood. What is this machine being used for? It might indicate a SYN flood attack, or trying to serve more connections than the machine can handle.
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