From: "\"Oleg A. Arkhangelsky\"" <sysoleg@yandex•ru>
To: netfilter-devel@vger•kernel.org
Cc: netdev@vger•kernel.org
Subject: Kernel panic nf_nat_setup_info+0x5b3/0x6e0
Date: Wed, 23 Feb 2011 20:07:21 +0300 [thread overview]
Message-ID: <118081298480841@web25.yandex.ru> (raw)
Hello,
Got this panic yesterday:
http://www.progtech.ru/~oleg/crash.txt
The offending instruction is:
cmpb 54(%edx), %cl # <variable>.tuple.dst.protonum,
and here is the assembler code of net/ipv4/netfilter/nf_nat_core.c:
http://www.progtech.ru/~oleg/nf_nat_core.s
Quick investigation lead me to conclusion that the problem is in
return of same_src function:
return (t->dst.protonum == tuple->dst.protonum &&
t->src.u3.ip == tuple->src.u3.ip &&
t->src.u.all == tuple->src.u.all);
So either t or tuple pointer is bad, but I don't understand how
this can be.
Looks like the similar situation described here:
https://bugzilla.kernel.org/show_bug.cgi?id=21512
Any thoughts on this?
Thank you!
--
wbr, Oleg.
next reply other threads:[~2011-02-23 17:15 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-23 17:07 "Oleg A. Arkhangelsky" [this message]
2011-03-02 11:37 ` Kernel panic nf_nat_setup_info+0x5b3/0x6e0 Patrick McHardy
2011-03-02 14:37 ` Changli Gao
2011-03-02 19:50 ` "Oleg A. Arkhangelsky"
2011-03-03 7:33 ` Changli Gao
2011-03-26 15:44 ` Changli Gao
2011-03-31 14:03 ` "Oleg A. Arkhangelsky"
2011-03-31 14:47 ` Eric Dumazet
2011-04-01 2:02 ` Changli Gao
2011-04-01 5:30 ` Eric Dumazet
2011-04-05 11:49 ` Patrick McHardy
2011-05-21 15:42 ` Changli Gao
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