netdev - Re: [Bugme-new] [Bug 8961] New: BUG triggered by oidentd in netlink code

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Date:	Sat, 01 Sep 2007 18:38:23 +0200
From:	Patrick McHardy <kaber@...sh.net>
To:	Athanasius <link@...gy.org>
CC:	linux-kernel <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	netdev@...r.kernel.org, bugme-daemon@...zilla.kernel.org
Subject: Re: [Bugme-new] [Bug 8961] New: BUG triggered by oidentd in netlink
 code

Athanasius wrote:
>   I'll compile up a new kernel, likely 2.6.22.6, plus this patch, and
> reboot to it tonight.  I still don't know *exactly* how to trigger the
> bug on demand though, it's not reocurred since I posted the bug report
> (but had happened about a week before as well).

Thanks. I'm not sure either, it would require two concurrent requests
to be processed, but AFAICS oidentd only uses a single netlink socket.
Perhaps multiple running instances or something else using the inet_diag
interface?

You might be able to trigger it without this patch by running
"while true; do ss -tn; done" while doing ident queries, but
just running the while loop a couple of times in parallel
doesn't seem to trigger it here.

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