From: Pablo Neira Ayuso <pablo@netfilter.org>
To: Alessandro Vesely <vesely@tana.it>
Cc: netfilter@vger.kernel.org
Subject: Re: Cannot destroy queue, nfnl_talk never returns
Date: Mon, 14 Jun 2010 01:21:18 +0200 [thread overview]
Message-ID: <4C1567EE.2040802@netfilter.org> (raw)
In-Reply-To: <4C136D70.3050902@tana.it>
Alessandro Vesely wrote:
> Hi,
> it has happened again (previous time was 5 May 2010).
> This time I used gdb rather than strace, but still don't know what's wrong:
>
> Calling recv on the nfq_fd had returned -512. (why?)
> At that point my daemon calls nfq_destroy_queue(), which does not return:
>
> (gdb) bt
> #0 0x00007ff3b6e50450 in recvfrom () from /lib/libc.so.6
> #1 0x00007ff3b696105c in nfnl_talk () from /usr/lib/libnfnetlink.so.0
> #2 0x00007ff3b79a429f in __build_send_cfg_msg (h=0x6073a0, command=2 '\002', queuenum=<value optimized out>, pf=0)
> at libnetfilter_queue.c:112
> #3 0x00007ff3b79a430d in nfq_destroy_queue (qh=0x607410) at libnetfilter_queue.c:258
> #4 0x00000000004021f7 in daemon_loop (h=0x6073a0, db=0x606570) at ibd-judge.c:477
> #5 0x0000000000402a75 in main (argc=<value optimized out>, argv=<value optimized out>) at ibd-judge.c:739
>
> Any idea?
I think that this is fixed in:
http://git.netfilter.org/cgi-bin/gitweb.cgi?p=libnetfilter_queue.git;a=commit;h=bc56a6becbd4c4edf743ca3bee32eb0329fc5e5a
That fix is included in libnetfilter_queue-0.0.17. You seem to be using
an older version since you point to nfnl_talk() which is not used
anymore in the library.
Upgrade and let us know if that fixes your problem.
next prev parent reply other threads:[~2010-06-13 23:21 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-12 11:20 Cannot destroy queue, nfnl_talk never returns Alessandro Vesely
2010-06-13 23:21 ` Pablo Neira Ayuso [this message]
2010-06-14 18:15 ` Alessandro Vesely
2010-07-03 11:15 ` recv fails with ENOBUFS (was: Cannot destroy queue, Alessandro Vesely
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