Re: About the kernel panic using the ip_queue!

[Patrick McHardy <kaber@trash.net>]

Jacky Luk wrote:
> Hi,
> 
> I am using the ip_queue to copy the packets to the userspace to perform 
> some modification in the system which is installed the Red Hat 
> Enterprise Linux ES release 4 Nahant Update 6 (Kernel: 2.6.9-67.ELsmp). 
> This system has six NIC ports and forms three bondings (Two ports to 
> form one bonding). Therefore, two of the bondings would be used to 
> handle the packet modification. They are belonged to different network 
> and subnets. One of the bonding is belonged to 192.168.0.x and the other 
> one is belonged to 192.168.1.x.
> 
> I have discovered that the system would be freezed under the high 
> traffic loading in certain time. The following is the error message 
> which is captured from the /var/log/message:
> 

> Sep 19 02:25:28 NEIPPROXY02 kernel: EFLAGS: 00010246  (2.6.9-67.ELsmp)
> Sep 19 02:25:28 NEIPPROXY02 kernel: EIP is at flush_old_exec+0x178/0x24c

That doesn't look related to ip_queue. In any case, that kernel
is many years old, so you need to talk to your vendor for support.
There have been *a lot* of queueing related fixes since then.