Thread (98 messages) 98 messages, 9 authors, 2012-01-22

Re: Hang: 2.6.32.4 sky2/DMAR (was [PATCH] sky2: Fix WARNING: at lib/dma-debug.c:902 check_sync)

From: Michael Breuer <hidden>
Date: 2010-01-22 23:50:37
Also in: lkml

On 1/22/2010 6:46 PM, Jarek Poplawski wrote:
On Fri, Jan 22, 2010 at 06:25:12PM -0500, Michael Breuer wrote:
   

You wrote earlier:
   
quoted
[...] Also, there is always a dhcp exchange of some sort
preceding the event.
     
So, I'm not sure there was "3) Normal DHCP traffic." if the switch
could drop DHCP packets in some buggy conditions. Anyway, let's try
the new one with really "3) Normal DHCP traffic.", I hope.

Jarek P.
   
When the packets were dropped, there was a different sequence in the log 
- DISCOVER/OFFER repeated. The "normal" is that the sequence appeared 
correct and complete - DISCOVER/OFFER/REQUEST/ACK - or INFORM/ACK (vs. 
INFORM repeatedly sans ACK) as the case may be.
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