[ewg] Crash in bonding

Shiri Franchi shirif at voltaire.com
Tue Nov 3 08:46:11 PST 2009


Hi,

I did it exactly as you described:
1. ifdown ib0
2. ifdown ib1
3. modprobe -r ib_ipoib

And it did not reproduced..

Shiri

-----Original Message-----
From: Pradeep Satyanarayana [mailto:pradeeps at linux.vnet.ibm.com] 
Sent: Tuesday, November 03, 2009 6:43 PM
To: Shiri Franchi
Cc: Moni Shoua; linux-rdma at vger.kernel.orig; fubar at linux.vnet.ibm.com;
EWG
Subject: Re: [ewg] Crash in bonding

Shiri Franchi wrote:
> Hi,
> 
> I tried to reproduce on RH5 up4 with ping and iperf and it did not
> happened.
> Are you sure you used "modprobe -t ib_ipoib" or maybe modprobe -r
> bonding?
> 
> Thanks,
> Shiri

Hi Shiri,

I used modprobe -r ib_ipoib. One of the pre-requisites to create
this crash is to do "ifdown ib0" and "ifdown ib1" while traffic is 
flowing through the bond master, and then remove the ipoib module.

If you simply remove the ipoib module, without doing the ifdowns the
crash does not occur.

Pradeep




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