lkml.org 
[lkml]   [2009]   [Apr]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] netfilter: use per-cpu spinlock rather than RCU (v3)

On Wednesday 2009-04-15 23:07, Eric Dumazet wrote:
>Stephen Hemminger a écrit :
>> Looks like there is some recursive path into ip_tables that makes the
>> per-cpu spinlock break. I get lockup's with KVM networking.
>>
>> Suggestions?
>
>Well, it seems original patch was not so bad after all
>
>http://lists.netfilter.org/pipermail/netfilter-devel/2006-January/023175.html
>
>So change per-cpu spinlocks to per-cpu rwlocks
>
>and use read_lock() in ipt_do_table() to allow recursion...
>
iptables cannot quite recurse into itself due to the comefrom stuff.

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2009-04-15 23:59    [W:1.929 / U:0.884 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site