Subject: Re: allocation failed: out of vmalloc space error treating and  
	VIDEO1394 IOC LISTEN CHANNEL ioctl failed problem
From: Arjan van de Ven <arjan@infradead.org>
To: Bill Davidsen <davidsen@tmr.com>
Cc: theSeinfeld@users.sourceforge.net, linux1394-devel@lists.sourceforge.net,
       linux-kernel@vger.kernel.org, libdc1394-devel@lists.sourceforge.net
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Organization: Intel International BV
Date: Mon, 15 Jan 2007 10:20:22 -0800
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> > 
> I've used vmalloc in the past, and not had a problem, but it is a fair 
> question, how do you find out how much space is available? Other than a 
> binary vmalloc/release loop.

that's a really hard question since it's dynamic;
I suppose a good rule of thumb is "never expect more than 16Mb to work"
(when I said "64Mb" that was for the kernel as a whole, and there's
other users than just "you" :)

if you need that much you probably should redesign your algorithms to
not need vmalloc in the first place....


-- 
if you want to mail me at work (you don't), use arjan (at) linux.intel.com
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