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Re: [ts-7000] Re: Memory leak?

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Subject: Re: [ts-7000] Re: Memory leak?
From: "R. Steve McKown" <>
Date: Wed, 13 Sep 2006 17:49:23 -0600
On Wednesday 13 September 2006 12:05 pm, Jesse Off wrote:
> I really doubt you'll find anything interesting investigating our
> kernel modifications for sources of memory leaks.  I just personally
> audited Cirrus' ethernet driver and found only 2 calls to "kmalloc"
> and those are only at driver initialization and total less than a
> few kilobytes.  Anything that appears to "leak" relating to network
> function would have to be at untouched (by Cirrus or TS) 2.4.26
> areas of Linux kernel code.

That's good to know!  I ran my 'test' for a short period using the rootfs on 
flash and didn't see the problem.  I'm working on a smarter, more definitive 
test.  Lots of variables to wade through...

> The VM system is somewhat unique on this processor since it uses a
> subsystem rarely used on Linux/x86 for handling discontiguous memory
> blocks.  We've already found and fixed one bug in the original
> code.  Its severity made me doubt the level of testing and quality
> of thought the 2.4.26 authors originally put into it, so I wouldn't
> be surprised if it has other quirks regarding memory usage
> reporting.  If its actually responsible for leaking memory (which I
> still doubt), my feeling of general unease about quality will be
> replaced with outrage ;-) -- though really its kind of hard to get
> mad with something thats free and has no warranty. :-)

Also good to know.  Thanks!  I'll post again when I have something more 
definitive to share.

Steve




 
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