Date: Sat, 2 Nov 2002 15:10:45 -0800 From: Bill Fenner <fenner@research.att.com> To: tlambert2@mindspring.com Cc: current@freebsd.org Subject: Re: crash with network load (in tcp syncache ?) Message-ID: <200211022310.PAA21596@windsor.research.att.com> References: <Pine.BSF.4.41.0211020937210.87031-100000@prg.traveller.cz> <3DC3B701.58AA03ED@mindspring.com> <200211021742.JAA18603@windsor.research.att.com> <3DC44B72.5C7C3C5E@mindspring.com>
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I really don't understand why you keep claiming that the SYN cache changes anything. Without the SYN cache, tcp_input() calls sonewconn(so, 0) on receipt of a SYN; with the SYN cache, tcp_input() calls some syncache function which calls sonewconn(so, SS_ISCONNECTED) on receipt of a SYN/ACK. In either case, it's with the same interrupt level, etc -- you are in the middle of processing a packet that was received by tcp_input(). So, you're saying that what we're hitting is a design flaw in 4BSD and that this problem has been there since day one? Bill To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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