From: Andi Kleen <ak@muc.de>
To: "Philippe Veillette (LMC)" <Philippe.Veillette@ericsson.ca>
Cc: linux-kernel@vger.kernel.org
Subject: Re: sk->socket is invalid in tcp stack
Date: 12 Jun 2002 01:38:51 +0200 [thread overview]
Message-ID: <m3it4p5qt0.fsf@averell.firstfloor.org> (raw)
In-Reply-To: <7B2A7784F4B7F0409947481F3F3FEF8303A070D4@eammlnt051.lmc.ericsson.se>
"Philippe Veillette (LMC)" <Philippe.Veillette@ericsson.ca> writes:
> I've found what could be a problem in the tcp stack with linux-2.4.17 &
> 2.4.18. When i run lmbench-2.0-patch2 and that i add the following line of
> code in tcp_v4_rcv, it<s get added between the if (!ipsec_sk_policy(sk,skb))
> ... and if (sk->state == TCP_TIME_WAIT)
>
> if (sk->socket) {
> if (sk->socket->inode) {
> printk("Boum\n");
> }
> }
>
> I get a crash, i can give the dump later but for now, I am just wondering if
> the sk->socket could be invalid when we are receiving a tcp packet. Since
It likely did receive to a time-wait socket. time-wait buckets are
"inherited" by hand from struct sock and live in similar hash tables,
but only some fields at the beginning are valid. Yes, it's rather ugly, but ...
-Andi
next prev parent reply other threads:[~2002-06-11 23:38 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-06-11 19:15 sk->socket is invalid in tcp stack Philippe Veillette (LMC)
2002-06-11 23:38 ` Andi Kleen [this message]
-- strict thread matches above, loose matches on Subject: below --
2002-06-12 12:38 Philippe Veillette (LMC)
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