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xen-devel
[Xen-devel] Re: softirq warnings when calling dev_kfree_skb_irq - bug in
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To: |
David Miller <davem@xxxxxxxxxxxxx> |
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Subject: |
[Xen-devel] Re: softirq warnings when calling dev_kfree_skb_irq - bug in conntrack? |
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From: |
Jeremy Fitzhardinge <jeremy@xxxxxxxx> |
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Date: |
Tue, 03 Aug 2010 08:24:52 -0700 |
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Xen-devel@xxxxxxxxxxxxxxxxxxx, Ian.Campbell@xxxxxxxxxx, eric.dumazet@xxxxxxxxx, netdev@xxxxxxxxxxxxxxx, dongxiao.xu@xxxxxxxxx, johannes@xxxxxxxxxxxxxxxx, kaber@xxxxxxxxx |
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On 08/03/2010 12:23 AM, David Miller wrote:
From: Johannes Berg<johannes@xxxxxxxxxxxxxxxx>
Date: Tue, 03 Aug 2010 09:04:34 +0200
I had this too:
http://article.gmane.org/gmane.linux.network/167590
But I'm not convinced it's conntrack, I'd think it's
commit 15e83ed78864d0625e87a85f09b297c0919a4797
Author: Eric Dumazet<eric.dumazet@xxxxxxxxx>
Date: Wed May 19 23:16:03 2010 +0000
net: remove zap_completion_queue
which, from the looks of it, ought to be reverted because it failed to
take into account that dev_kfree_skb() can do more things that require
non-irq-context than just calling skb->destructor, like for instance the
conntrack thing we see here.
Agreed. I'll revert this and queue that up for 2.6.35-stable
FWIW I only see this in linux-next, not released 2.6.35. But it does
look like a likely root cause.
J
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