On Mon, Jan 07, 2008 at 05:12:44AM -0800, patrick%klos.com@localhost wrote:
> Hello,
>
> I'm working on a NIC driver for a 10 Gbps NIC and I have the basics working,
> but I clearly have a memory leak. The thing is, I don't see the leak when I
> look at the output of 'vmstat -m'. I see the memory climb in the output of
> 'top' - it indicates that the "File" memory usage is continually climbing
> when I have transfers happening.
Are these transfers coming from or going to a file system?
>
> So the basic question is "what memory usage would be considered 'File' memory
> by 'top' but wouldn't show up in 'vmstat -m'?". Of course, it's possible I'm
> just not seeing it in the 'vmstat -m' output, but I've looked pretty hard!
> :o)
I'm pretty sure "File" is cached file system/block device backing.
>
> I have a feeling the problem is due to mismatched "bus_dmamap_load..."/
> "bus_dmamap_unload..." operations, but haven't been able to confirm that.
>
> Any tips on tracking this down would be most appreciated!
>
> Thanks,
>
> Patrick Klos
Jonathan Kollasch
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