lkml.org 
[lkml]   [2002]   [Jun]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Subjectsk->socket is invalid in tcp stack
Date
Hi everybody

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
from the search i've done it seems to be initialized only when the sock
struct is initialized in sock_init_data that get called by inet_create.

But what is more frightening, is that it's alright for sometime and then
Boum, crash....

Bye

Philippe Veillette

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:26    [W:0.043 / U:0.096 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site