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Date: Thu, 28 Jan 2010 17:59:05 -0500
From: Michael Breuer <mbreuer@majjas.com>
Subject: Re: Hang: 2.6.32.4 sky2/DMAR (was [PATCH] sky2: Fix WARNING: at
 lib/dma-debug.c:902 check_sync)
In-reply-to: <20100128225621.GD3109@del.dom.local>
To: Jarek Poplawski <jarkao2@gmail.com>
Cc: Stephen Hemminger <shemminger@linux-foundation.org>,
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On 1/28/2010 5:56 PM, Jarek Poplawski wrote:
> On Thu, Jan 28, 2010 at 05:43:34PM -0500, Michael Breuer wrote:
>    
>> This is with the pci_unmap_len patch as well as the dma-debug patch.
>> I'm not getting any warnings - but dma-debug num-free-entries drops
>> until zero and then debugging is disabled. I started with 8,000,000
>> about three hours ago - without load I'm already down to less than
>> half that. Again - only looking at sky2. Looks like the dma-debug
>> hash table is reducing one entry for every packet, but never
>> increasing the num_entries (no unmap perhaps).
>>      
> OK, then, until there is some new fix you better turn it off.
>
> Jarek P.
>    
:( any further suggestions for helping track this down?