From: David Miller <davem@davemloft.net>
To: eric.dumazet@gmail.com
Cc: anton@samba.org, netdev@vger.kernel.org
Subject: Re: Warning in net/ipv4/af_inet.c:154
Date: Wed, 26 May 2010 21:21:05 -0700 (PDT) [thread overview]
Message-ID: <20100526.212105.212688828.davem@davemloft.net> (raw)
In-Reply-To: <1274933926.2542.26.camel@edumazet-laptop>
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Thu, 27 May 2010 06:18:46 +0200
> Process context :
>
> lock only (sk_lock.slock = locked, sk_lock.owned = ???)
>
> So I should add a test on owned. If set (by another thread), we should take the slow path.
Indeed, what you're doing now is broken.
If owned is non-zero when you take the spinlock you have to queue your
work, just like how we toss packets into the socket backlog, which is
processed by release_sock(), when this happens.
next prev parent reply other threads:[~2010-05-27 4:20 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-25 11:58 Warning in net/ipv4/af_inet.c:154 Anton Blanchard
2010-05-25 15:27 ` Eric Dumazet
2010-05-26 3:19 ` Anton Blanchard
2010-05-26 5:18 ` Eric Dumazet
2010-05-26 7:56 ` David Miller
2010-05-26 10:12 ` Eric Dumazet
2010-05-27 3:56 ` Anton Blanchard
2010-05-27 4:06 ` David Miller
2010-05-27 4:21 ` Eric Dumazet
2010-05-27 4:18 ` Eric Dumazet
2010-05-27 4:21 ` David Miller [this message]
2010-05-27 5:06 ` [PATCH] net: fix lock_sock_bh/unlock_sock_bh Eric Dumazet
2010-05-27 5:20 ` Eric Dumazet
2010-05-27 5:23 ` David Miller
2010-05-27 6:09 ` Anton Blanchard
2010-05-27 7:29 ` David Miller
2010-05-29 7:21 ` Warning in net/ipv4/af_inet.c:154 David Miller
2010-05-31 16:02 ` [PATCH] net: sock_queue_err_skb() dont mess with sk_forward_alloc Eric Dumazet
2010-06-01 6:44 ` David Miller
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