From: Anton Blanchard <anton@samba.org>
To: Jeremy Fitzhardinge <jeremy@goop.org>
Cc: Linux Kernel List <linux-kernel@vger.kernel.org>,
"Bryan O'Sullivan" <bos@serpentine.com>
Subject: Re: 2.6.0-test4-mm6: locking imbalance with rtnl_lock/unlock?
Date: Sun, 7 Sep 2003 08:24:36 +1000 [thread overview]
Message-ID: <20030906222436.GB15327@krispykreme> (raw)
In-Reply-To: <1062885603.24475.7.camel@ixodes.goop.org>
> which is SIOCGIFADDR. It seems to me the down() is actually the
> rtnl_lock() called at net/ipv4/devinet.c:536 in devinet_ioctl. This
> happens even when netplugd is no longer running. It looks like someone
> isn't releasing the lock.
>
> I'm going over all the uses of rtnl_lock() to see if I can find a
> problem, but no sign yet. I wonder if someone might have broken this
> recently: I'm running 2.6.0-test4-mm6, but I think Bryan is running an
> older kernel (2.6.0-test4?), and hasn't seen any problems.
Yep I saw this too when updating from test2 to BK from a few days ago.
>From memory the cpu that had the rtnl_lock was stuck in dev_close,
probably netif_poll_disable. I got side tracked and wasnt able to look
into it.
Anton
next prev parent reply other threads:[~2003-09-06 22:25 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-06 22:00 Jeremy Fitzhardinge
2003-09-06 22:24 ` Anton Blanchard [this message]
2003-09-07 1:47 ` Andrew Morton
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