From: Amin Azez <azez@ufomechanic.net>
To: Pablo Neira <pablo@eurodev.net>
Cc: netfilter-devel@lists.netfilter.org
Subject: Re: [PATCH] Conntrack proc interface for tuple removal
Date: Tue, 17 May 2005 17:00:43 +0100 [thread overview]
Message-ID: <428A152B.1060109@ufomechanic.net> (raw)
In-Reply-To: <4284378B.8080401@eurodev.net>
Pablo Neira wrote:
> - READ_LOCK'ing while trying to delete a conntrack is racy, you must use
> write_lock instead. Someone else could be reading the conntrack table
> while you try to delete a conntrack.
> - check the value returned by del_timer, currently racy as well.
> - Deadlock on SMP: calling conntrack->timeout.function
> (death_by_timeout) is illegal if you've got ip_conntrack_lock.
Where should one read to learn about the rules and intricacies of such
locking dependancies.
Amin
prev parent reply other threads:[~2005-05-17 16:00 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-12 18:47 [PATCH] Conntrack proc interface for tuple removal Ferry Huberts
2005-05-13 5:13 ` Pablo Neira
2005-05-17 16:00 ` Amin Azez
2005-05-18 6:51 ` Jozsef Kadlecsik
2005-05-19 3:10 ` Pablo Neira
2005-05-17 16:00 ` Amin Azez [this message]
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